WO1998019447A1 - Telecommunications interface and associated method for collecting and transmitting data - Google Patents
Telecommunications interface and associated method for collecting and transmitting data Download PDFInfo
- Publication number
- WO1998019447A1 WO1998019447A1 PCT/US1997/019406 US9719406W WO9819447A1 WO 1998019447 A1 WO1998019447 A1 WO 1998019447A1 US 9719406 W US9719406 W US 9719406W WO 9819447 A1 WO9819447 A1 WO 9819447A1
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- WIPO (PCT)
- Prior art keywords
- data
- short message
- transmitting
- digital
- message service
- Prior art date
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/12—Messaging; Mailboxes; Announcements
- H04W4/14—Short messaging services, e.g. short message services [SMS] or unstructured supplementary service data [USSD]
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D4/00—Tariff metering apparatus
- G01D4/002—Remote reading of utility meters
- G01D4/006—Remote reading of utility meters to a non-fixed location, i.e. mobile location
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07F—COIN-FREED OR LIKE APPARATUS
- G07F15/00—Coin-freed apparatus with meter-controlled dispensing of liquid, gas or electricity
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
- H04M11/002—Telephonic communication systems specially adapted for combination with other electrical systems with telemetering systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q9/00—Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/20—Services signaling; Auxiliary data signalling, i.e. transmitting data via a non-traffic channel
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/18—Self-organising networks, e.g. ad-hoc networks or sensor networks
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02B90/20—Smart grids as enabling technology in buildings sector
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/30—Smart metering, e.g. specially adapted for remote reading
Definitions
- the present invention relates generally to the remote monitoring of usage information, and in particular to an apparatus and associated method for transmitting, receiving, storing, processing and digitally retransmitting the information directly to a remote receiving device via various methods to include personal communications systems using Global Standards for Mobile Communications (GSM) , Time Division Multiple Access (TDMA) Technology, Code Division Multiple Access (CDMA) , Frequency Division Multiple Access (FDMA) , Personal Access Communications System (PACS) or any other communication system that employs a digital technology standard for voice and data communications.
- GSM Global Standards for Mobile Communications
- TDMA Time Division Multiple Access
- CDMA Code Division Multiple Access
- FDMA Frequency Division Multiple Access
- PES Personal Access Communications System
- Frew, et al disclose a device for monitoring utility usage.
- the device is independently powered and is capable of short range infrared transmission of the utility usage data.
- a wand is also provided that is capable of receiving the transmitted data.
- a meter-reading employee uses the wand by placing it close to the monitoring device to receive the data which is electronically stored in a transportable unit carried by the employee. The employee then brings the electronically stored data to the utility company where it is downloaded from the transportable unit and used to calculate the customer's utility usage bill.
- U.S. Patent Nos. 5,010,568 and 5,161,182, by Merrian, et al. disclose a utility usage monitor that connects to the customer's telephone line via a modem.
- the usage monitor calculates and stores the customer's utility usage data.
- the utility company periodically calls the monitoring unit, and when a modem connection between the utility company and the monitoring unit is established, the monitoring unit sends the usage data to the utility company and the data is used to calculate the customer's usage bill.
- Gastouniotis, et al disclose a device that monitors utility usage data.
- the customer's utility usage data is collected by a unit located in the customer's residence.
- the monitoring unit sends the usage data via a radio frequency to an intermediate storage station where usage data from up to 10,000 residences is capable of being stored.
- the intermediate station sends the stored data to the utility company by either a radio frequency link, a cable TV line or telephone line. Subsequently, the utility usage data is used to calculate the customer's bill.
- the information should be capable of being transmitted via GSM, PACS, FDMA, CDMA or TDMA digital technology operating at any frequency. It would also be advantageous for the data collection device to provide an interface with telecommunications wiring at a location so as to provide a connection to a digital personal communications system or equivalent wireless network.
- a device that is capable of receiving requests for data and is capable of transmitting data using the short message service of the personal communications system protocol. It would further be advantageous to provide a device that creates an interface between wire-line telecommunications equipments/systems and a wireless digital PCS telecommunications network where the device operates over a specified frequency bandwidth.
- an apparatus for automatically collecting data and digitally transmitting that data to a remote receiving device, and the data is capable of being transmitted in one embodiment using GSM, PACS, FDMA, CDMA or TDMA digital technology.
- These transmission protocols represent mobile telecommunications systems that operate on a specified radio frequency bandwidth that are capable of digital speech and data transmission.
- the apparatus includes a device for sensing and collecting data at a first location. If the sensed data is analog, then the analog data is converted to digital data.
- the collected data may be transmitted to a data collection device for storage and/or processing before the data is digitally transmitted to the desired remote device.
- Within the data collection device is a device for processing and storing which is also used to convert and encode the data into a desired format and electronically store the data.
- the device for processing and storing can include a central processing unit (CPU) for processing the collected data, erasable programmable memory (EPROM) for storing a program to process the collected data and random access memory (RAM) for storing the data before it is transmitted.
- the apparatus transmits the digital data to a remote receiving device via a telecommunications transceiver unit and network using GSM, PACS, FDMA, CDMA or TDMA digital technology on any radio frequency.
- the GSM, PACS, FDMA, CDMA or TDMA network may transmit the stored and/or processed data on a digital GSM, PACS, FDMA, CDMA or TDMA control channel or short message system and the data is delivered to the remote receiving device.
- the apparatus is capable of transmitting the data over the personal communications system network utilizing frequencies of about 1900 MHz.
- personal communication systems may encompass any other wireless system that employs the use of a digital transmission technology to transmit information to a remote receiving device.
- the apparatus for automatically collecting data can be connected via a connecting device to telecommunications systems or equipment (e.g., existing hardwired telephone system) to create a connection to a wireless telecommunications network (e.g., GSM, PACS, FDMA, TDMA or Code Division Multiple Access (CDMA) network) .
- a connection in this manner allows for voice or data transmission over the wireless telecommunications network using the existing telecommunications systems or equipment wiring at a location.
- the collected meter usage data can be electronically stored within the optical meter reading device.
- the collected data can be subsequently transmitted to another location via a wired or wireless connection.
- the wireless transmission of collected data may be sent over a frequency band that has not been licensed for commercial use.
- the transmitted data is capable of being received by the data collection device and subsequently digitally transmitted.
- data is transmitted to and from the data collection device using the short message service portion of digital technologies used for digital voice and data communications, (e.g., GSM, PACS, FDMA, TDMA or CDMA) .
- the short message service portion of these digital transmission protocols is a means to send a protocol specific number of characters of data to and from mobile subscribers (MS), i.e. a device capable of transmitting via a personal communications system.
- MS mobile subscribers
- a method for transmitting a data sequence via a personal communications system short message service transmission protocol is disclosed. The method includes first transmitting a request for data from a remote device to the data collection device using the short message service portion of the personal communications system transmission protocol. The request is received at the data collection device and interpreted.
- the data collection device compiles the data that was requested by the remote device.
- the compiled data is then transmitted to the remote device using the control channel of the short message service portion of the personal communications system transmission protocol.
- the compiled data consists of data received by the data collection device.
- This data is then stored as it is received, with the capability of using a time stamp functionality.
- This time stamp device provides electronic circuitry that is capable of providing a time relationship to the data that is capable of being stored in electronic memory in the collection device for compilation and release on query from the remote device. The time stamping enables the data to bear a relationship to the period of time over and during which it may have been collected.
- This time relationship is useful in developing usage profiles for later reporting or consumption profiles of data which might reflect the period of time during which items were consumed, the consumption was monitored and consumption data was collected, stored and held in the data collection device.
- the various parameters would include but would not be limited to frequency of collection, related time stamping, and notification of consumption. Each of these specified parameters may be changed or altered on request and in conformance with requests and instructions received from the remote device.
- the step of transmitting the request for data includes accessing the short message service portion of the personal communications system transmission protocol.
- the data sequence is transmitted by the remote device to the data collection device via the short message service portion of the personal communications system transmission protocol.
- the short message service data is received by the data collection unit and the request for data is interpreted.
- the data collection unit accesses the short message service portion of the personal communications system transmission protocol.
- the compiled data is formatted as a short message containing the data which was previously requested from the remote device.
- the data sequence is transmitted from the data collection device to the remote device using the short message service portion of the personal communications system transmission protocol.
- a device and method for coupling wire-line telecommunications equipment/systems to a digital PCS radio receiver/transmitter is provided.
- the digital PCS radio receiver/transmitter is used in a wireless digital PCS telecommunications network having a remote digital PCS transceiver system.
- the digital PCS radio receiver/transmitter is further capable of digital radio communication with the remote digital PCS transceiver system.
- the device includes a wire-line telecommunications equipment/system interface that connects the device with the premise wire-line telecommunications equipment/systems creating a first two-way communications link.
- a first means for converting is provided that covers data that is input to the wire-line telecommunications equipment/systems from the device.
- a digital PCS radio receiver/transmitter interface is provided that connects the device to the digital PCS radio receiver/transmitter creating a second two-way communications link.
- a second means for converting is provided that converts data input to the digital PCS radio receiver/transmitter from the device.
- a means for determining the number of telephone number digits to be dialed is provided. The telephone number digits are capable of being input to the wire-line telecommunications equipment/systems. A number of telephone digits are capable of being input to the wire- line telecommunications equipment/systems by a user.
- the means for determining further includes a first means for receiving, storing and converting a plurality of digits to digital format.
- the plurality of digits include telephonic number dialing sequences of a length necessary for placing, dialing or accessing the wire-line telecommunications equipment/systems.
- Each of the first stored numbers is represented by a specific number of digits wherein each of said stored numbers is represented by a specific number of digits to be dialed from the wire-line telecommunications equipment/systems.
- a second means for storing is provided that stores the dialed or input telephone digits. The telephone digits are dialed or input from the wire-line telecommunications equipment/systems.
- a means for generating a send signal is provided that generates a send signal to the digital PCS radio transmitter/receiver. The send signal is generated after the specified number of digits corresponding to the at least one stored number is dialed.
- the device and method can further include a means for generating a ring signal to the wire-line telecommunications equipment/system.
- the ring signal will be generated when a telephone call is made to said wire-line telecommunications equipment/system over the wireless digital PCS telecommunications network.
- means for acknowledging and further coupling the wireless digital PCS telecommunications network and the wire-line telecommunications equipment/systems is provided when an off-hook condition is recognized.
- a data collection device may be interconnected with the device. The data collection device is capable of transmitting data to the device.
- a device for transmitting and receiving data being conveyed over a telecommunications network includes a means for converting data sent over the telecommunications network.
- the data may be converted to be compatible with a PCS short message service protocol.
- a means for modulating the data sent over the telecommunications network is provided.
- the data is modulated over a bandwidth. In one embodiment the data is modulated over the bandwidth of 3200 to 3800 Hz.
- a second means for converting data received from the telecommunications network is provided, and a means for demodulating data received from the network demodulates the data over a bandwidth.
- the bandwidth ranges from about 3200 to 3800 Hz.
- the personal communications system (PCS) transmission protocol and short message service transmission (SMS) protocol include several standard wireless transmission systems. These systems include a global system for mobility (GSM) technology network, a time division multiple access (TDMA) technology network, a code division multiple access (CDMA) technology network, frequency division multiple access technology network (FDMA) or personal access communications system technology network (PACS), among others.
- GSM global system for mobility
- TDMA time division multiple access
- CDMA code division multiple access
- FDMA frequency division multiple access technology network
- PES personal access communications system technology network
- the method may be used on any wire or wireless transmission system that employs a digital or analog transmission protocol system.
- FIG. 1 is a block diagram of one embodiment of the communications system of the present invention
- Fig. 2 is a block diagram of another embodiment of the communications system of the present invention.
- Fig. 3 is a block diagram of an data collection device
- Fig. 4 is a block diagram of a remote meter reader
- Fig. 5 is a block and schematic diagram of an embodiment of the data collection device
- Fig. 6 is a block diagram of another embodiment of the communications system of the present invention including date/time stamp electronics and a short message controller.
- Fig. 7 is a diagram of the downlink and uplink portions of a GSM technology based control channel data sequence.
- Fig. 8 is a diagram illustrating the transmission of data to and from a data collection unit via a personal communications system.
- Fig. 9 is a diagram illustrating the telecommunications interface of the present invention.
- Fig. 10 is a diagram illustrating the transmission of data over a PCS wireless network and a public switched network.
- Fig. 11 is a diagram illustrating one embodiment of the out of band modem of the present invention.
- the data collection device collects data from utility meters and other devices, and the data can be transmitted to the data collection device via a wired or wireless connection.
- a wireless transmitter/receiver that is capable of digitally transmitting the data to a remote device, such as to a remote device located at a utility company, over a personal communications system using GSM, PACS, FDMA, TDMA or CDMA technology and also receiving data from the remote device.
- the remote device is capable of interrogating individual data collection devices and specific data registers of individual data collection devices because the wireless telecommunications technology allows each individual data collection device and data register within the device to have an unique address.
- the improved reader includes an electromagnetic radiation (e.g. optical or infrared) transmitter and receiver.
- a device for reflecting an electromagnetic beam is provided such that the beam is optically coupled between the transmitter, receiver and a rotatable disk, dial or mechanical type indicator provided in a utility meter.
- the improved meter reader is capable of being integrated into existing meters without having to replace each existing utility meter.
- a block diagram of an data collection device includes a data collection receiver 110 that is connected to meters or other devices 100.
- the data collection receiver 110 includes a direct wired input receiver 116 for those meters or other devices 100 that are directly wired to receiver 110, and a super regenerative or spread spectrum receiver 114 is included for those meters or devices 100 that are wirelessly connected to receiver 110.
- a data collection device 120 is connected to data collection receiver 110 and is capable of calculating and storing usage consumption or status data from any presently existing meter readers or other devices.
- a GSM, PACS, FDMA, CDMA or TDMA telecommunication unit 130 is connected to the data collection device 120 such that the data received (from the meters 100) is capable of being digitally transmitted over a GSM, PACS, FDMA, CDMA or TDMA digital technology network short message service to a remote device or location 140.
- the data collection device can be miniaturized and located behind an electrical meter.
- This embodiment contains a transceiver that is capable of transmitting and receiving information over a digital GSM, PACS, FDMA, CDMA or TDMA network.
- this embodiment can also contain a receiver for collection of data from wireless meter readers or other data sources associated with the data collection device.
- the GSM, PACS, FDMA, CDMA or TDMA telecommunications unit 130 includes a GSM, PACS, FDMA, CDMA or TDMA transmitter/receiver 134 that receives data from the data collection device 120.
- the GSM, PACS, FDMA, CDMA or TDMA transmitter/receiver is then capable of digitally transmitting data to and from a remote receiving device 140 via the GSM, PACS, FDMA, CDMA or TDMA network control channel or short message service 136.
- the personal communications system network in most of North America contains spectrum assignments between 1850 to 1990 MHz
- the 1900 MHz bandwidth (referred to herein as the 1900 MHz bandwidth) .
- the GSM, PACS, FDMA Global System for Mobile Communications
- CDMA or TDMA transmitter operates over a frequency range of
- the data collection device of the present invention may be used in conjunction with any wireless network that employs a digital control channel or short message service technology for transferring information.
- any wireless network that employs a digital control channel or short message service technology for transferring information.
- existing wireless network technologies such as personal communications system, GSM, TDMA, CDMA, Frequency Division Multiple Access (FDMA) and Personal Access Communications System (PACS)
- the present invention is envisioned to be used in connection with other wireless network technologies that may be developed and that employ the use of a digital control channel or short message service type of technology to transfer information.
- the data from all of the meters 100 is transmitted to the data collection device 101, for example by a wired or radio frequency connection.
- the data collection device 101 is also capable of receiving data from meters that have been manufactured by various companies equipped with/for various methods of data collection, retention and subsequent data release.
- the data from the data collection device 101 is transmitted over a network infrastructure to a base transceiver system (BTS) 102 using a digital control channel or short message service.
- BTS base transceiver system
- BSC base station controller
- the data is transmitted to a mobile switching center (MSC) 103.
- a control channel packet assembler/disassembler or short message service center 105 is physically located at the MSC 103.
- the data stream is transmitted in a common data format (e.g., Integrated Services Digital Network (ISDN), Short Message Service technology standard service basis (SMS), etc.)
- ISDN Integrated Services Digital Network
- SMS Short Message Service technology standard service basis
- Each transmission unit contains a specific number of transmission packets (e.g., under GSM personal communications system wireless networks there are five transmission packets per transmission unit) . Since the GSM control channel (e.g.) is generally under utilized, many of the transmission packets contain no wireless network transmission information, such packets are known as "dummy" packets.
- Fig. 1 shows a GSM control channel packet assembler/disassembler short message service center
- SMSC Global System for Mobile communications
- control channel assembler/disassembler 105 continuously monitoring GSM data steams and from which can separate the control channel transmission packets necessary for system control or other system information from other channel transmission packets with other characteristics.
- control channel assembler/disassembler 105 is physically located at the MSC 103, it may be logically located at any point between the BTS 102 and the MSC 103.
- Each data packet has a "header" which contains a specific numeric configuration which identifies a packet as a "dummy" packet, GSM control packet or a specific data packet.
- Specific transmission packets transferred to and from the data collection device 101 are detected by the control channel packet assembler/disassembler 105, "stripped", interrogated, quantified and simultaneously replaced by a "dummy" packet which is, then, transmitted to the MSC 103.
- the "stripped" packets that contain information from the data collection device 101 may be transmitted to the remote receiving device 140 to be processed.
- instructional information for the data collection device 101 may be transferred from the remote receiving device 140 to the control channel packet assembler/disassembler 105 and introduced into the control channel by stripping a dummy packet and inserting a control data packet with the instructional information in the data stream.
- control channel packet assembler/disassembler 105 is operated in tandem on both the inbound and outbound control channels between the BSC 106 and the MSC 103.
- the control channel packet assembler/disassembler 105 can be a computer that has been programmed to perform the functions mentions hereinabove.
- the present invention utilizes removal of the "dummy" packets that contain no information and replacing these packets with diverted transmission packets.
- the diverted transmission packets can contain data and instructions that are used by the remote device to control the individual data collection devices.
- the diverted transmission packets can contain data that the data collection device sends to the remote device.
- the diverted transmission packets can be diverted between the BTS 102 and the MSC 103.
- the diverted transmission packets are replaced with "dummy" transmission packets making the operation of this system transparent to the MSC 103. Operating in this manner, the remote receiving device 140 and the data collection device 101 create a two way communications link.
- GSM Global System for Mobile Communications
- FDMA Downlink Packet Access
- CDMA Code Division Multiple Access
- TDMA Time Division Multiple Access
- the (GSM) control channel or its equivalent in other digital technologies including PACS, FDMA, CDMA or TDMA networks is normally used to verify the caller's identification and billing information.
- the control channel is used for switching the caller between communication towers typically when the caller is close to becoming out of the range of a transmitting tower. As such, there are times when the control channel or its technical equivalent is not in use by the digital GSM, PACS, FDMA, CDMA or TDMA communications network.
- the data collection device 101 is capable of transmitting data over the network system without interfering with other control channel type transmissions.
- the GSM, PACS, FDMA, CDMA and TDMA control type channel (s) is always fully in use with streams of transmission packets, but the majority of the transmission packets consist of "dummy" transmission packets, as explained hereinabove.
- the "dummy" packets can be "stripped” from the data stream in route to the BTS 102.
- the packets that are "stripped” are replaced with dummy transmission packets that contain address and instruction for the data collection device 101.
- the address information contains a unique address for each individual data collection device.
- the present invention is capable of communicating with individual data collection devices because information may be sent to the unique address of the desired data collection device.
- the diverted transmission packets which are received via the GSM, PACS, FDMA, CDMA or TDMA BTS 102 are stripped and not forwarded to the MSC 103.
- This packet "stripping" allows this system to be installed without software modification to the home location register (HLR) , vehicle visitor location register (VLR) or MSC 103.
- the data collection device 101 is capable of transmitting or receiving data at any prescribed or requested time. Thus, data can be transmitted or received at times when other control channel transmissions are at a minimum.
- Data transmitted over the control channel or technical equivalent is digital, and therefore the digital data from the data collection device 120 may be transmitted over the GSM, PACS, FDMA, CDMA or TDMA network, and therefore removing the need of a digital-to-analog conversion.
- Existing meter interrogation systems are not intelligent and cannot interrogate individual or specific devices. Some systems, through the network transmission system, issue a command to all meters in a certain portion of the network to report. Those zoned meters then transmit data on a sequential (timed) basis. The meters receive this command and then report the data via the wireless network multiple times, independent of any other readings which might be taking place at this same time. This operational theory assumes that the meters' data transmissions will not interfere with each other through this staggered interrogation and transmission scheme, and that one of the multiple readings (if not more) will reach the data collection point in an uncorrupted manner.
- the data collection device transmits data when requested to do so by the GSM, PACS, FDMA, CDMA or TDMA signal. Therefore, it is possible to read specific data registers of single meters without activating all of the meters in a zone to do so. This operation of interrogating meters decreases the amount of traffic on the GSM, PACS, FDMA, CDMA or TDMA communications systems and optimizes the efficiency of the system operation.
- the meters or other devices 100 may be remotely located from the data collection device 120 (see Figs. 3 and 5) and connected by a wireless data collection unit 148.
- the data may be collected from meters or other devices by universal meter reading sensor 156.
- the data is conditioned and preferably encrypted before transmission using signal conditioning electronics 154.
- the transmitter control 152 directs the transmitter 150 to send the data to the super regenerative or spread spectrum receiver 114, shown in Fig. 2.
- the transmitter 150 is capable of operating on unlicensed radio frequencies, such as 27, 49, 300 or 902-928 MHz using either frequency modulation (FM) or amplitude modulation (AM) .
- the transmitter 150 will operate over the frequency range of 902-928 MHz using amplitude modulation.
- the transmission of the data from the transmitter 150 to the data collection device 120 can be accomplished by using an inductive (L) and capacitive (C) super regenerative circuit, described in detail hereinbelow.
- the LC circuit is a fairly inexpensive alternative for short distance wireless transmission of data.
- the data may be sent to the LC receiver 114 (shown in Fig. 2) , it may be sent to a remote device or location, as explained hereinabove, using the GSM, PACS, FDMA, CDMA or TDMA telecommunications unit 130, also shown in Fig. 2.
- the wireless data collection unit 148 can be remotely powered by a battery 158 that can be charged by a solar cell 162.
- the charge control unit 160 regulates the power from the solar cell 162 such that battery 158 and super-capacitor 164 are charged.
- the super-capacitor 164 may be used as a backup power source.
- the wireless data collection unit is powered by long life batteries.
- the data collection device 120 further includes a data collection unit 210.
- the data collection unit 210 includes a central processing unit (CPU) that has an electronic memory such as erasable programmable read-only memory (EPROM) and a realtime clock. These devices are used to store, time stamp and process the most recent meter output or other data.
- the data processing program/algorithm that is used by the CPU to process the utility data is stored in the EPROM via program data lines 230, and for security purposes, after initially programming the CPU, the data processing program/algorithm cannot be changed.
- the data collection device 120 is capable of detecting the false data or algorithm or physical intrusion and can send a security breach signal to the remote receiving device
- the CPU has a plurality of data input and output (I/O) lines. Therefore, the I/O lines that are not in use by the data devices may be used for additional applications.
- the additional lines may be connected to a home security unit having a number of sensors throughout the home. When a sensor detects an intrusion, the data collection device 120 is capable of transmitting that breach to a remote device located, for example, at a police station.
- Other home applications include a home health monitoring device that can be capable of detecting the health status of a patient and transmit that data to a hospital .
- the data collection device may use additional I/O lines to monitor the usage of vending machines or the like.
- each vending machine located in a building can be capable of transmitting its usage data to the universal meter reading data collection device which, in turn, transmits that usage data to the vending company. Therefore, the vending company can restock the vending machines without wasting manpower by having to manually check each machine.
- the invention also encompasses applications for irrigation sprinkler systems monitoring and control, oil well monitoring and control, sewage/water monitoring at industrial sites, smokestack emissions monitoring, real-time monitoring of air quality in metropolitan areas, remote weather monitoring and power failure location monitoring.
- the utility usage data is obtained from meters 220, and additional data lines 232 are available for monitoring other devices.
- Meters 220 may be hard-wired or wirelessly connected to the data collection unit 210. When the meters 220 are wirelessly connected, the data is preferably transmitted over unlicensed frequency bands, preferably over the frequencies of 27, 49, 300 or 902-928 MHz.
- the data collection device is capable of reading multiple status and usage inputs compared to other devices which read each device as an individual element. The data collection device conditions the data through the CPU to provide a more efficient usage of technology and spectrum. In addition, the data collection device can interface to many devices with wired or wireless media and inputs.
- the CPU inspects the data for errors and wireless meter reader serial number prior to accepting and storing the data (in this example a meter reading) for storage and later transmission via the GSM, PACS, FDMA, CDMA or TDMA system to the data collection point.
- the data collection device/utility meter reading system is low cost because it utilizes the modification of existing meter infrastructure and simply adds an optical/infrared reader which is much less costly than replacing an installed meter with a meter equipped with reading electronics contained therein. Further, multiple meters and alarms are read or monitored at one site by one data collection device. As explained earlier, through the utilization of the GSM, PACS, FDMA, CDMA or TDMA control packet data or short message service collection system, there are no software modifications necessary to any of the GSM, PACS, FDMA, CDMA or TDMA transmitting or receiving equipment.
- the transmission of data from the meters 220 to the data collection unit 210 may be accomplished by using an LC super regenerative circuit to create a wireless connection between the unit 210 and the meters 220.
- signal conditioning electronics 234 are used to filter any electromagnetic noise in the transmitted signal.
- the signal conditioning electronics 234 may also be used when the meters 220 are hard-wired to the connection unit 210 in order to filter noise and deliver a clean logic signal to the data collection unit 210.
- opto-triac switch 250 is used for controlling the coil of the load shedding relay contacts 260.
- the opto-triac is a commercially available device used to isolate sensitive electronic devices from transient surges caused by switching large power loads.
- One or more load shedding relays 260 may be controlled which allows the utility company to shut down power to areas having low usage priority in the event of a power outage or high usage times. For example, a customer may reach an agreement with the utility company to cut the power to his home during a "brown out" period such that the additional energy may be used to power a nearby hospital.
- the load shedding relay 260 is capable of being activated by the utility company over the network to the data collection device 120 because the GSM, PACS, FDMA, CDMA or TDMA communications link is capable of two-way communication.
- a power wheeling device may be attached to data collection device 120. The power wheeling device would allow the utility consumer to compare the utility rates of various utility companies in the area. If the consumer finds a more competitive utility rate, the consumer is capable of switching to that utility company by using the power wheeling device and the data collection device 120.
- the data collection device 120 is located in an extension to an existing electric meter, but the data collection device 120 may be housed and mounted in a separate waterproof unit.
- the data collection device 120 can powered by an AC voltage obtained from the customer's utility power line.
- the AC voltage is stepped down by power electronics 224 where, preferably, a voltage signal of about 8 volts is produced.
- a battery backup 226 is provided when the AC power source is not capable of providing power to the data collection device 120.
- the battery backup 226 is a gel cell or similar battery having a long battery life.
- security switches 228 are also provided, with the data collection device 120, that detect when the unit is tilted or when the cover to the unit is opened. When the security switches 228 are triggered, the data collection unit 210 is capable of reporting a security breach to the remote device 140, as shown in Fig 3, over the communications network.
- the data When the data has been processed by the data collection unit 120, it is then sent over the network using GSM, PACS, FDMA, CDMA or TDMA communications electronics 234 that are connected to the data collection unit 210 and an antenna 242.
- the GSM, PACS, FDMA, CDMA or TDMA communications electronics 234 allows data to be transmitted to the data user's facility over the short message service or technical equivalent of a control channel of a GSM, PACS, FDMA, CDMA or TDMA network.
- the communications connection over the network is a two-way link which allows data to be sent to and from the remote device or location and the data collection device 120.
- the interested party may communicate with the data collection device 120 to access data or other features (e.g., load shedding and power utilizing) .
- the data collection device can also be connected to a telecommunications system wiring at a user's location 248 (e.g., the existing telephone wiring in a house) to create a connection to a wireless telecommunications network, such as a GSM, PACS, FDMA, CDMA or a TDMA network.
- a wireless telecommunications network such as a GSM, PACS, FDMA, CDMA or a TDMA network.
- a vocoder 244 and ring/tone generator 246 located within the data collection device 120 are connected to the existing telephone wiring 248.
- the ring/tone generator 246 is provided to create dial tone and ringing capabilities to the existing telephone wiring from the wireless telephone network.
- the vocoder 244 is used to convert voices to digital signals which are capable of being transmitted over the wireless network.
- This wireless telecommunications network connection replaces the need for wired telecommunications service because it established a wireless telecommunications interface at the location through the data collection device 120.
- the data collection device is capable of simultaneously performing all the functions described hereinabove.
- the ring/tone generator is used as an interface to couple the existing premise wire-line telecommunications equipment/systems at that location with the wireless digital PCS telecommunications network.
- one embodiment of the telecommunications interface coupling 300 includes a wire-line telecommunications network 310 which comprises, for example, the existing wire based telecommunications circuitry within a building.
- the wire-line telecommunications equipment/system 310 is interconnected to the digital PCS wireless network 320 by the ring/tone generator 330.
- a data collection device 360 may also be connected to the ring-tone generator 330 in such a manner that the data collection device 360 is capable of transmitting, for example, utility usage data or other data over the digital PCS data collection device 360.
- the ring/tone generator 330 is interconnected with the PCS transmitter/receiver 340 that can be capable of digital transmission with at least one remote PCS transceiver base station 350.
- the remote PCS transceiver base stations 350 include base transmission stations, base station controllers and mobile switching centers as described herein above.
- the ring/tone generator 330 has structures to accomplish several functions while providing the telecommunications interface coupling 300. Theses structures include means for converting data, means for determining the number of digits in a telephone number being dialed from the wire-line telecommunications network, means for generating a send signal to the PCS transmitter/receiver and means for interrogating and qualifying the dialed number before sending the telephone number dialed from the wire-line telecommunications network to the PCS transmitter/receiver.
- the means for converting data includes any devices used to convert data. These devices include, but are not limited to, digital to analog converters and analog to digital converters and digital protocol converters .
- data that is collected by the data collection device must converted to digital format before being sent to the PCS transmitter/receiver and transmitted over the digital PCS wireless network.
- data or voice-tones input from the wire-line telecommunications network must also be converted to digital format before being sent over the digital PCS wireless network.
- data or voice tones that must be input to the wire-line telecommunications network may have to be converted to analog format or other data formats, such as a data format that is compatible with a short message service (SMS) protocol of the particular digital PCS wireless network.
- SMS short message service
- the means for determining the number of digits in a telephone number dialed from the wire-line telecommunications network includes any device capable of determining the number of digits dialed from a telecommunications network.
- these devices may include electronic memory that is capable of storing a table of reference numbers.
- the electronic memory can be updated or changed by, for example, adding a new read-only memory device, reprogramming an existing writable-erasable memory device. The reprogramming of the memory device can be accomplished by sending data to the memory device over the wire-line telephone network or the PCS wireless network.
- the reference numbers may have a lengths of 1 to 11 digits, and in a preferred embodiment the reference numbers have a length of 3 digits.
- the reference numbers stored in memory comprise area codes and local dialing prefixes that are recognized by the system.
- each of the stored reference numbers correlates to a specific number of digits to be dialed. Therefore, by analyzing, from 1 to 11 digits being dialed the system is able to determine how many digits will ultimately be dialed, and when the last digit is dialed the system can be instructed to take a specific action.
- a converter can be used to convert the numbers from analog rotary or analog touch-tone signals to digital data.
- an electronic memory buffer sequentially stores the dialed numbers as digital data in a digital form.
- logic circuitry sequentially analyzes the dialed numbers to those stored reference number tables. As the numbers are analyzed and when the dialed numbers equal at least one stored reference number, the correlated length of telephone number digits to be dialed may transmitted to the system. In response to the transmission of the length of the telephone number digits to be dialed, circuitry determines when the specified length of digits has been dialed by adding subsequently dialed numbers to those dialed numbers already stored in memory.
- the numbers 280 represented a local exchange prefix recognizable by the system
- the number would be saved in a memory table as a reference number and correlated with the number 7 because a local telephone number has a length of 7 digits.
- the numbers are stored and sequentially compared to the stored reference table numbers.
- the logic circuitry determines that the dialed 280 matches a stored reference table number, the length of the telephone number digits (7) will be sent to the system.
- the logic circuity determines that 3 numbers have already been dialed, those numbers being 2, 8 and 0, and the system will wait until 4 more digits are dialed.
- the numbers 1443 may represent a long distance request (1) and an area code (443), and if the system recognized this number, the number would be stored in memory as a reference number.
- the reference number 1443 would be correlated to a telephone number length of 11, including 1 + area code (3 digits) + prefix
- the system retrieves the digitally stored dialed numbers and transmits these numbers along with a send signal to the PCS transmitter/receiver.
- the stored dialed number and send signal are sent to the PCS transmitter by any device that is capable of transmitting these commands. These devices include but are not limited to the described data collection device.
- the PCS transmitter/receiver receives the send signal and the telephone number, the information is transmitted over the PCS wireless network and the call is placed.
- the memory table will also have the capability and will be programmed to recognize and transmit feature commands of feature controls specific to a particular personal communications system. These feature commands are the equivalent of feature commands found in use on wire- line telephone communications system, such as, but not limited to, *(star) 72, * (star) 73 and hook flash.
- a send signal will only be generated by the system when the numbers dialed match one of the stored reference numbers from the table and the specified number of digits has been dialed (input) .
- the system may have a time-out device where a send signal will be generated and any stored numbers will be send to the PCS transmitter/receiver if a specified amount of time has elapsed since the last digit was dialed. In a preferred embodiment, the system will wait 30 seconds between dialed digits. This time-out feature may be implemented as a substitute for the digit analysis or may be implemented when the dialed numbers do not match a stored reference number.
- the ring/tone generator includes a ring signal generator that is capable of generating a ring signal to the premise wire-line telephone system from a call made on the PCS wireless network.
- the ring signal generator includes any device capable of generating a ring signal, including but not limited to a power source capable of supplying a specified voltage to the wire-line telecommunications system when a telephone call is received from the PCS wireless network.
- a ring signal can be generated by supplying 80 to 115 volts at 20 Hz.
- the ring/tone generator may include a means for determining an off-hook condition.
- An off-hook condition includes, for example, a condition where a user lifts the receiver of the wire-line telecommunications equipment/system. Upon lifting the receiver, a dial-tone is generated by the wire-line telecommunications equipment/system. Therefore, the off- hook condition can be any request by the wire-line equipment/system to generate a dial tone.
- the means for determining an off-hook condition includes any device that determines that a request for a dial tone has been made by the wire-line telecommunications equipment/system.
- data can be collected by a data collection device 400 that transmits the data to the data collection device 400 and the data is collected within the data collection device 400 and is output as cleartext.
- the cleartext can be converted to digital format that will be sent as a short message over the PCS wireless network via the PCS transmitter/receiver 430.
- the converted data can be transmitted over the PCS wireless network via the PCS transmitter/receiver 430 using the base transceiver stations (BTS) 400, the base station controller (BSC) 440 and the mobile switching center (MSC) 460.
- BTS base transceiver stations
- BSC base station controller
- MSC mobile switching center
- the transmission scheme presented above transmits data exclusively using the digital PCS wireless network.
- data collected at the data collection device may be transmitted using the existing wire-line telecommunications network, such as a public or privately switched telephone network (PSTN) , using an out of band modem.
- PSTN public or privately switched telephone network
- a request for data 490 can be sent to the data collection device via the PSTN 480 over the PCS wireless network.
- the request for data 490 is in cleartext format allowing the data to be sent as a short message (SM) over the PCS wireless network.
- the cleartext data is sent via a PSTN 480 to the mobile switching center (MSC) 460 and then to the short message center 470 which converts the cleartext data into a short message (SM) and routes the SM to the base station controller (BSC) 440, the remote base transceiver station (BTS) 450 and the PCS transmitter/receiver 430.
- the SM is received in cleartext format recognized by the data collection device 400.
- the data collection device 400 can respond to the request for data 490.
- data is collected by a data collection device 400.
- the data is transmitted in cleartext to a PCS wireless network as a short message (SM) .
- SM short message
- the short message service typically, the short message service
- SMS SCMS of a PCS wireless network
- the data collection device 400 divides the data into packets having a character length of 140 to 160 characters.
- a request for data or other information may be sent to the data collection device 400 using the PSTN 480.
- the data from the data collection device 400 is transmitted to an out of band modem 420 that is connected to a PSTN 480.
- the out of band modem 420 modulates the converted data over a specific frequency bandwidth and transmits that data via the PSTN 480 to the mobile switching center (MSC) 460.
- the converted data is recognized as a short message (SM) by the MSC 460 and the converted data is sent to the short message service (SMS) 470 of the PCS wireless network. From the SMS 470, the short message (SM) , comprising the converted data, is transmitted to a remote receiving device (not shown) .
- SMS short message
- this information can also be sent to the out of band modem 420 that is connected to the PSTN 480.
- the out of band modem 420 modulates data sent from the data collection device 400 to the PSTN 480, using modulator 510, and demodulates data sent to the data collection device 400 from the PSTN 480, using demodulator 500.
- the data is modulated over a bandwidth of 600 Hertz (Hz) .
- the data is modulated over the bandwidth of about 3200 to 3800 Hz.
- the voice bandwidth theoretically, ranges from about 30 to 4000 Hz but, in practice, the bandwidth used to transmit voice data is about 300 to 34000 Hz.
- the bandwidth on which the out of band modem operates is considered out of band because this bandwidth is, typically, not used by a user of the PSTN during voice transmission. As such, use of this bandwidth to send data over the PSTN would be transparent' to the user of the PSTN.
- lowpass filters 530 and 540 are used. In a preferred embodiment, low pass filters 530 and 540 remove any transmitted data that is transmitted at a frequency that is lower than 3000 Hz.
- the user that uses the PSTN to user interface 560 may use a lockout control 550.
- Inductive coils 520 couple the D.C. loop current allowing normal use of the wire-line telecommunications equipment/system which use is not interrupted or affected during transfers of data involving the out of band modem.
- a method for collecting and transmitting data from the data collection device 120 is provided. First, analog and digital data is sensed at a first location. The analog data is subsequently converted into digital data. The digital data is processed into a desired format and is stored in a memory device. The processed digital data is transmitted over a wireless network to a remote device or location. In another embodiment, the transmission step is made over a wireless network control channel or short message service using GSM, PACS, FDMA, CDMA or TDMA digital technology.
- the data from the optical meter reader microprocessor 340 may be wirelessly transmitted to the data collection device over an unlicensed radio frequency band.
- the data can be transmitted from the reader 300 to the data collection device using an LC or SAW transmitter circuit.
- a method is provided for monitoring utility usage data from a conventional utility meter having a rotatable disk. First, a beam of radiation is transmitted from a source and reflected off of the reflecting device to the rotatable disk. The beam is then reflected again off the rotatable disk back to the reflecting device where it is reflected toward an infrared detector and detected. The number of rotations of the disk is calculated from the number of times that the detector detects the infrared beam of light.
- the reader contains algorithms to prevent false readings caused by sunlight, other forms of optical interference or reverse meter rotation.
- a method for transmitting a data sequence via a personal communications personal communications system transmission protocol includes several standards of operation. These standards include a global system for mobile communications (GSM) technology network, a time division multiple access (TDMA) technology network or a code division multiple access (CDMA) technology network , frequency division multiple access (FDMA) technology network and personal access communications system (PACS) technology network, among others.
- GSM global system for mobile communications
- TDMA time division multiple access
- CDMA code division multiple access
- FDMA frequency division multiple access
- PES personal access communications system
- Each of these technology networks employ the use of a type of digital control channel to direct communications to the correct location.
- the control channel is used to transmit a sequence of data that is used to direct voice or data communications to the correct destination via a personal communications system.
- the short message service normally occupies a portion of the control channel and is used as an additional data path by the data collection device on the network.
- GSM and PCS transmission protocols e.g., can be found in the publication "An Introduction to GSM” by Michel Mouly and Marie-Bernadette Pautet published in 1993 by Northern Telecom, Inc. of Richardson, Texas.
- a previous embodiment described the use of the digital control channel to transmit data from one device to another using a drop and add packet technique.
- the present embodiment employs the use of the short message portion of the personal communications system transmission protocol to transmit data from one device to another.
- the short message service portion of the personal communications system transmission protocol is a means to send a protocol specific number of characters of data to, from and between mobile subscribers (MS), i.e. a device capable of transmitting via the personal communications system.
- MS mobile subscribers
- Another difference between the use of the voice control channel and short message service is that the short message service performs at a lower frequency of data packets within the control channel because of the specifics of the short message service operating protocol employed by the various technologies.
- data could be transmitted to the data collection device to the remote device at 275 to 325 data groups per second and the data collection device can respond and send data groups at the same (or similar) rate depending upon control channel traffic loading.
- data is transmitted at about 7 data groups per second.
- the short message service portion of the personal communications system transmission protocol is a means to send a protocol specific number of characters of data to and from a mobile subscriber (MS) .
- MS mobile subscriber
- the data collection device 50 appears on the communications network as a mobile subscriber and the remote device 54 has the capability of contacting the data collection device using the personal communications system network 52.
- the remote device 54 may be accessed through the public switched telephone network 56. Additionally, the connection of the remote device to a public switched telephone network 56 allows data to be sent to and from the remote device 54 via the public switched telephone network 56.
- the utility company may connect via the public switched telephone network 56 to data collection device 50 using the remote device 54.
- the remote device 54 requests the data from the data collection device 50, and when the data is received by the remote device 54, it is transmitted to the utility company or a data collection center via the public switched telephone network 56 using a modem, for example.
- the remote device 54 When a request for data is made, the remote device 54 encodes the request as a short message according to the personal communications system transmission protocol.
- the data may be assembled into the short message sequence using various known techniques.
- Fig. 7 one technique for assembling a short message service GSM control channel data sequence is shown.
- the control channel in Fig. 7, illustrates an downlink portion 10 and a uplink portion 12 of the control channel.
- the control channel can include a stand-alone dedicated control channel
- SDCCH slow associated control channel
- SACCH slow associated control channel
- the control channel contains a protocol specific number of characters per packet. Each of the packets has a specific significance in the protocol.
- data character units 34 and 36 may be used to transmit an intended short message from a remote device to a mobile subscriber.
- the present invention is capable of interpreting requests sent in the data character units 34 and 36 as a short message.
- the present invention is capable of composing short messages that contain the requested data. In composing the short message, the present invention may insert a send requested in the data.
- the data is transmitted from the data collection device (50) to the remote device (54) to the mobile subscriber and from the mobile subscriber to the remote device (54) to the data collection device (50) .
- techniques of assembling, sending, receiving and interpreting short message type service may be use to accommodate other technologies.
- the request for data is made by the remote device 54 and converted to short message service format, this request is transmitted using a wireless personal communications system network 52.
- the short message service data sequence is received at a base station controller (BSC) 60 which identifies the data as a short message.
- BSC 60 transmits the short message using the mobile switching center (G/MSC/VLR) 62 to the short message center (SMS-C) 58.
- G/MSC/VLR mobile switching center
- SMS-C short message center
- the request for data is then transmitted from the SMS- C 58 to the data collection device 50 through the G/MSC/VLR and BSC, using the wireless personal communications system network 52.
- the data collection device 50 responds to the request for data by interpreting the request and compiling the data that was requested.
- the compiled data is transmitted by the data collection device 50 using the short message service of the personal communications system transmission protocol. Similar to the request for data, the compiled data is inserted into the control channel or other data sequences as a short message. It should be appreciated that the data may be sent using multiple short messages in several control channel or other data sequences.
- the control data sequence is then transmitted as a short message using the wireless personal communications system network 52 using the BSC 60 and the G/MSC/VLR 62. During this transmission, the BSC 60 identifies the control channel data sequence as a short message and the sequence is sent to the SMS-C 58.
- the compiled data is then sent as a short message to the remote device 54 using the wireless personal communications system network 52.
- the remote device 54 receives and interprets the compiled data.
- the assembly and disassembly of the request for data and the transmission packets in the control channel or other data sequence may be made using data packet assembly and disassembly techniques or standard short message service protocol technology.
- the data collection device 50 may send data to the remote device 54 without being, first, prompted to send data.
- the data collection device 50 may embody a security device in a home. Once a security breach is detected by the data collection device 50, this breach may be set via the short message service portion of the personal communications system transmission protocol to the remote device 54, using the above described method. Once the security breach is received by the remote device 54, further security precautions may be made, such as notifying law enforcement personnel .
- the data collection device 101 includes a device for data stamping the collected data.
- the date/time stamp device 108 is an electronic device that provides a time relationship to the collected data. As the data is retrieved from the meter or devices 100, the date/time stamp device 108 electronically assigns each data reading with the date/time that the data was collected.
- the collected data and its associated time stamp are capable of being stored in a data collection device, such as electronic memory, for later retrieval. As such, the saved data that is retrieved at a later time may be useful to develop usage profiles that reflect the amount and time the data was used or compiled and stored. This type of usage profiling is beneficial when compiling power consumption data from a home or business.
- the date/time stamp device 108 may be capable of adjusting data collection parameters such as the frequency of collection, related time stamp and notification of consumption.
- the remote device 140 can instruct the data collection device 101 to collect data on an hourly interval and time/date stamp each reading when it is acquired.
- the remove device 140 can instruct the data collection device to terminate all power being supplied to a location if a predetermined consumption level is reached or in the case of load shedding, on a pre-determined basis through agreement with the utility company and the utility consumer, simply terminate power to non-essential energy consuming devices.
- the data collection device 101 may also include a short message controller 109.
- the short message controller 109 is capable of interpreting a short message received from the remote device 140.
- the short message controller 109 is also capable of instructing the data collection device 101 to perform several data collection functions, such as to collect data and retrieve saved data.
- the short message controller 109 is capable of composing a short message that contains the requested data.
- the composed short message composed by the short message controller 109 is capable of being sent over the short message service portion of the personal communications system transmission protocol.
Abstract
Description
Claims
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JP52066198A JP2002503405A (en) | 1996-10-28 | 1997-10-28 | Telecommunications interface and related methods of collecting and transmitting data |
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US08/920,085 US6014089A (en) | 1996-10-28 | 1997-08-26 | Method for transmitting data using a digital control channel of a wireless network |
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Also Published As
Publication number | Publication date |
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US6014089A (en) | 2000-01-11 |
JP2002503405A (en) | 2002-01-29 |
CA2270231A1 (en) | 1998-05-07 |
AU5089198A (en) | 1998-05-22 |
EP0958694A1 (en) | 1999-11-24 |
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