CN100480637C - Communications and features protocol for a measuring water meter - Google Patents
Communications and features protocol for a measuring water meter Download PDFInfo
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- CN100480637C CN100480637C CN200380108130.7A CN200380108130A CN100480637C CN 100480637 C CN100480637 C CN 100480637C CN 200380108130 A CN200380108130 A CN 200380108130A CN 100480637 C CN100480637 C CN 100480637C
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
- G01F15/06—Indicating or recording devices
- G01F15/061—Indicating or recording devices for remote indication
- G01F15/063—Indicating or recording devices for remote indication using electrical means
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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
- H04Q—SELECTING
- H04Q2209/00—Arrangements in telecontrol or telemetry systems
- H04Q2209/60—Arrangements in telecontrol or telemetry systems for transmitting utility meters data, i.e. transmission of data from the reader of the utility meter
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2209/00—Arrangements in telecontrol or telemetry systems
- H04Q2209/80—Arrangements in the sub-station, i.e. sensing device
- H04Q2209/84—Measuring functions
Abstract
A measuring meter system with communications and features protocols for monitoring the meter has been developed. The system includes a meter that monitors usage of a distribution system, an electronic data recorder that processes data from the meter, and an external unit that controls the processing of data in the electronic data recorder with a communication protocol. The communication protocol includes an initialization signal, an interval identification signal, and a clock signal.
Description
The cross reference of related application
The application require on November 4th, 2002 application, title is the right of priority of 60/423, No. 598 provisional application of " electronics self-powered water meter ".
Technical field
The present invention relates to gauging table.More particularly, the present invention relates to be used for the communication and the data protocol of the data recorder of gauging table.
Background technology
Be widely used in track terminal user's consumption according to the instrument of the use of flow metering material.For example, the utility company that supplies water for their client is generally according to the product charge of consumption to them.The consumption of water is generally by the metering instrument on the water supply line that is installed in each client.The employee of utility company (normally one month once) termly manually collects reading from instrument.Therefore these readings reading that normally adds up, calculate the use amount in this cycle by the reading in cycle before deducting.In case calculate consumption, give client with the bill of the water yield used in this cycle.
Owing to compare with bigger business customers, the consumption that each instrument monitoring is less relatively will spend great amount of manpower and material resources so the manual read takes scale, and can produce artificial mistake, particularly to uptown client.The result is to have used electronic instrument, so that can collect the use data faster, more effective and more accurately.The flow that electronic instrument is crossed habitual machinery instrument by monitoring stream comes metered amount.Store usage readings electronically, send to the local transmitter/receiver of utility company's operation then through radio signal.
But electronic instrument needs power supply.Usually, this instrument relies on battery as power supply.Battery must manually be changed, and this is again another process of spending consuming time.In addition, if battery breaks down, utility company just can not determine correct consumption in instrument so, and the result lacks to charge to client.
Summary of the invention
In some respects, the present invention relates to a kind of device of measuring instrument, comprising: the instrument of the consumption of monitoring distribution system; Electronic data recorder is used to handle the data from instrument; External unit is used for utilizing communication protocol to control the data processing of electronic data recorder; Wherein communication protocol comprises, initializing signal, time interval identification signal, and clock signal.
In others, the present invention relates to device with a kind of measuring instrument use, comprising: the instrument of the consumption of monitoring distribution system; Be used to receive device from the data of instrument; Be used to handle device from the data of instrument; Device with the leakage that is used for detecting distribution system.
In others, the present invention relates to a kind of method of calculating utility usage patterns, comprising: receive usage data from the consumption of monitoring distribution system; Handle usage data to calculate utility usage patterns; Wherein utility usage patterns is discerned the predetermined condition in the distribution system.
In others, the present invention relates to a kind of method of calculating utility usage patterns, comprising: the step that receives the usage data of distribution system; Handle usage data to calculate the step of utility usage patterns; With step according to predetermined condition in the utility usage patterns identification distribution system.
From following explanation and claims, can obtain clearer understanding to other aspects and advantages of the present invention.
Description of drawings
Should be noted that in different figure and represent identical feature with identical reference number.
Fig. 1 shows the synoptic diagram of electronic water meter monitoring system according to an embodiment of the invention.
Fig. 2 shows the skeleton view of self-powered water meter according to an embodiment of the invention.
Fig. 3 shows the synoptic diagram of the display of electronic data recorder according to an embodiment of the invention.
Fig. 4 shows the block scheme of the ASIC circuit of electronic data recorder according to an embodiment of the invention.
Fig. 5 shows the sequential chart of the clock signal in 1200Hz work according to an embodiment of the invention.
Fig. 6 shows the sequential chart of initializing signal of following in the clock signal of 1200Hz work according to an embodiment of the invention.
Fig. 7 shows circulation identification signal according to an embodiment of the invention and the sequential chart of the initializing signal of following in the clock signal of 1200Hz work;
Fig. 8 shows optional circulation identification signal according to an embodiment of the invention and the sequential chart of the initializing signal of following in the clock signal of 1200Hz work;
Fig. 9 shows optional circulation identification signal according to an embodiment of the invention and the sequential chart of the initializing signal of following in the clock signal of 1200Hz work;
Figure 10 a shows optional circulation identification signal according to an embodiment of the invention and the sequential chart of the initializing signal of following in the clock signal of 1200Hz work;
Figure 10 b shows optional circulation identification signal according to an embodiment of the invention and the sequential chart of the initializing signal of following in the clock signal of 1200Hz work;
Figure 11 shows the chart of the bit value of Leak Detection according to an embodiment of the invention (current) feature;
Figure 12 shows the chart of the bit value of Leak Detection according to an embodiment of the invention (period) feature;
Figure 13 a shows the bit value of flow/direction feature according to an embodiment of the invention and the chart that LCD shows;
Figure 13 b shows the chart of the bit value (3-bit) of non-traffic characteristic according to an embodiment of the invention;
Figure 13 c shows the chart of the bit value (2-bit) of non-traffic characteristic according to an embodiment of the invention;
Figure 14 shows the chart of the bit value of peak value continuous backflow feature according to an embodiment of the invention; With
Figure 15 shows the chart of the bit value of peak value reflux features according to an embodiment of the invention.
Describe in detail
Developed and allowed the monitoring client to use measuring instrument data, that have communication and features protocol.Measuring instrument measurement and recorded stream are crossed the volumetric usage of the material of instrument.Instrument can be used for measuring water, coal gas or electric consumption in utility application.In addition, this instrument is used to measure the flow of various compositions usually in commercial Application.In these chapters and sections, used the self-powered water meter in the utility application that various embodiment of the present invention is described.But, should be known in that described the present invention can be applied to the many dissimilar measuring instrument in the application fields.
Fig. 1 shows the synoptic diagram of electronic water meter monitoring system 10 according to an embodiment of the invention.System 10 comprises and is used for independently client's electronic water meter 12a or 12b.The instrument operated by rotary motion is on a point on the individual of the client between client and the public utilities master supply line supply line.Meter interface unit (MIU) 14a or 14b are connected to corresponding instrument 12a or 12b.MIR 14a or 14b are collect the instrument usage data of the electronic register on its corresponding instrument and the electronic equipment that the process radio signal sends to data local transmitter/receiver 16a or 16b.In optional embodiment, can use other external unit, for example, laptop computer well known in the prior art, data recorder or other suitable equipment.In other embodiments, MIU or similar devices can be integrated into an inner member of instrument.Show two optional embodiment of electronic water meter.First embodiment comprises and is arranged on instrument 12a and MIU14a underground or " instrument well " unit.Another embodiment comprises and is arranged on ground instrument 12b and MIU 14b.Also show the emittor/receiver 16a and the 16b of two kinds of optional types.First kind of emittor/receiver 16a is installed in the vehicle, and another kind of emittor/receiver is a handheld unit 16b.A kind of emittor/receiver of additional type can forever be installed in the middle position of a plurality of instrument and MIU.In these emittor/receivers each allows the public utilities personnel to receive usage data, and need not manually to read each independent instrument.As a kind of alternative, when each emittor/receiver 16a and 16b are in the scope of instrument 12a or 12b, be sent to emittor/receiver from the data of instrument, emittor/receiver sends to it the computer system 18 of public public institution again.Then, computer system 18 is according to each client's of data computation consumption.Then, public public institution produces each client's suitable bill.
The electronic water meter of system oneself provides electric power by inner " Wiegand Wire (Wiegand lead) ".The Wiegand lead is a kind of when it is exposed to the magnetic field of the flux polarity with variation, produces the equipment of electric signal.Lead also can be used at the two ends induced potential near coil of conductive wire.The polarity in magnetic field relies on the kinetic energy of the fluid that flows through instrument and changes.In certain embodiments, when fluid flows through instrument, the water wheels of an inside of fluid rotation, and water wheels rotate the axle of an attaching.A plurality of magnet arrangement are on a disk that is attached to rotation axis.When disk rotates with axle, the motion of the magnet alternating flux field of in Wiegand lead, inducting near disk.Because the signal that the variation in the magnetic flux produces lead is used to provide electric power to the electronic circuit of measuring instrument.By analyzing the quantity and the speed of the signal that lead produces, also can determine to flow through speed, volume and the direction of the fluid of instrument.
Fig. 2 shows the skeleton view of self-supplied electronic water meter 20 according to an embodiment of the invention.In this embodiment, electronic water meter 20 flows into connector 22 by instrument and is connected to the water supply line.Water flows into meter body 26 by connector 22 from supply line, and flows out to the client by flowing out connector 24.When water flow through meter body 26, it promoted inner water wheels 28 and rotates.Rotate water wheels 28 and make circular magnetic disc 30 rotations that are connected to water wheels 28 by the axle (not shown) again.In the present embodiment, circular magnetic disc 30 is shown as the magnetic region (polar orientation in each district is designated as " N " and " S ") with four separation, these four magnetic regions have constituted a quadrupole magnet.In other embodiments, can use different configurations of magnets.
When disk 30 rotated, it changed the flux polarity of the Wiegand wire sensor 32 of contiguous disk 30 settings.As mentioned above, the change of polarity is inducted by the signal of sensor 32 generations.These signals are represented the relevant data that flow through the water of instrument 20, and also electric power are provided to the electronic circuit of instrument.More particularly, signal flow is corresponding to the speed and the direction of the water that flows through instrument.Water passes through the slewing rate calibration of the flow velocity and the signal flow that water wheels 28, disk 30 and sensor 32 produce of instrument 20.In Fig. 2, only show a Wiegand wire sensor 32 and together use with instrument 20.Should be known in optional embodiment of the present invention, can use a plurality of sensors in the instrument.In other embodiments, a secondary magnet assembly is arranged on EDR.Secondary magnet is coupled to disk, thereby it rotates with the rotation of disk.When secondary magnet rotated, it changed the flux polarity of Wiegand wire sensor.
Data are processed and storage in the electronic data recorder 34 that is attached to instrument 20.Register 34 comprises utilization and is included in ASIC (special IC) chip of the interior energy process of signal flow from the signal flow of Wiegand wire sensor 32.In other embodiments, can be by also providing the external unit of electric power to carry out additional treatments to system.In certain embodiments, nonvolatile memory is arranged in the ASIC.This storer is used to store data.Fig. 3 shows the view of the display at electronic data recorder 34 tops.Register 34 has and is used to protect display 38 not to be subjected to the lid 36 (being presented at open position) of contaminations such as dust, fragment.Display 38 itself is the LCD (LCD) of series of displays data.In the present embodiment, LCD can show nine numerals.In optional embodiment, can use the displaying scheme of other type and quantity.Display is to provide electric power by the solar cell row 40 who is exposed to sunlight or other light source when lid 36 is opened.Because MIU or other system element break down and need manually read under the situation of instrument, property owner or public public institution can use display easily.
Fig. 4 shows the block scheme of the ASIC circuit of electronic data recorder (EDR).In this embodiment, used two Wiegand wire sensor 32 to provide two independent data stream to ASIC 41.The power supply (EXT POWER) that other connection of ASIC is comprised an ASIC outside is connected with a ground connection (GND).The primary processor (not shown) is one and has by solar cell 40, or MIU 14a or 14b provide the electronic circuit in the EDR of microprocessor of electric power.Primary processor uses external power cord to come access to be stored in to be embedded in the data in the nonvolatile memory among the ASIC.Other connection for ASIC comprises: enabling signal (ENABLE); Data-signal (DATA); Clock signal (CLOCK); Read/write signal (R/W); Output signal (PULSEOUTPUT); And direction signal (PULSE DIRECTION).During these connect each is all passed through the other parts that the host interface (not shown) arrives data recorder.Although EDR is illustrated as an element that separates with instrument here,, should know in optional embodiment, EDR can be integrated into a part of instrument.
The EDR clock signal is the synchronized stable time signal stream of traffic operation that makes data stream.The frequency of clock signal is generally in the rank in thousands of weeks of per second.Measuring unit is the per second hertz in one week (Hz).The another kind of selectable unit of measuring is the kilohertz (kHz) of per second one kilocycle.
In one embodiment, electronic instrument utilizes the clock signal communication of the frequency of 1200Hz or 1.2kHz.This EDR clock signal generally sends to each electronic instrument through electric wire from MIU.Among other embodiment of a plurality of instrument of operation, the EDR clock signal can be operated in 19.2kHz in network schemer.In the present embodiment, electronic data recorder is calculated and is caused 15 minute time interval of 96 data readings of per 24 hours periods or the usage data on " readout interval ".Usage data generally is stored in the system storage, and is used for sending to public public institution.
Fig. 5 shows the sequential chart of the clock signal of 1200Hz.Prepare to carry out data when reading when the external unit such as MIU14a or 14b, send an initializing signal from EDR34.Fig. 6 shows the sequential chart of the initializing signal 44 that the clock signal 42 that is operated in 1200Hz follows closely.In the present embodiment, initializing signal 44 is first signals of the single length of 50 milliseconds of (mSec) duration.But in optional embodiment, the duration of signal can be short to 25 milliseconds, or long to 100 milliseconds.Initializing signal is used to start primary processor reception, processing and the storage data from instrument.After initializing signal 44, conversion of signals is got back to the clock signal of 1200Hz.
In one embodiment of the invention, use a kind of communication protocol to start the electronic data recorder that has its ASIC, and carry out data in the time interval of the rule of a specified period and read.Communication protocol comprises: initializing signal; Time interval identification signal; And clock signal.In the present embodiment, the cycle of regulation is one hour, has four of 15 minute time interval independently readings.These readings are called: " 0 minute reading "; " 15 minutes readings); " 30 minutes readings "; " 45 minutes readings ".
In the beginning in each 15 minute time interval, utilize clock signal to send an initializing signal 44.Be right after thereafter be identification to write down which 15 minutes round-robin time intervals identification signal 46.Fig. 7 shows and is following a time interval identification signal 46 and the sequential chart at the initializing signal 44 of the clock signal 42 of 1200Hz work.In the embodiment shown, the duration of time interval identification signal 46 is two 1200Hz derations of signal.Term " deration of signal " should be understood to comprise half of duration of the full signal cycle of a high phase place and a low phase place.First 15 minutes circulation readings of a specified period of these signal 46 identifications.First reading is called " 0 minute reading ".Fig. 8 shows the sequential chart of the 2 15 minute circulation reading that is called as " 15 minutes readings ".As shown in Figure 7, initializing signal 44 back follow hard on a time interval identification signal 46 and the clock signal 42 in 1200Hz work.But identification signal 46 is three 1200Hz derations of signal.Fig. 9 shows the time diagram of the 3 15 minute circulation reading that is called as " 30 minutes readings ".As shown in Fig. 7 and 8, initializing signal 44 back follow hard on a time interval identification signal 46 and the clock signal 42 in 1200Hz work.But identification signal 46 is four 1200Hx derations of signal.Figure 10 a shows the sequential chart of the 4 15 minute circulation reading that is called as " 45 minutes readings ".As shown in Fig. 7-9, initializing signal 44 back follow hard on a time interval identification signal 46 and the clock signal 42 in 1200Hz work.But identification signal 46 is five 1200Hz derations of signal.In some instances, may need 15 minute time interval regulation reading in addition.Can utilize a kind of special identification signal to discern the circulation reading of regulation, for example use six 1200Hz derations of signal or any other unique width.Figure 10 b shows the back and follows hard on a time interval identification signal 46 and the sequential chart at the initializing signal 44 of the clock signal 42 of 1200Hz work.In this example, time interval identification signal 46 is six 1200Hz derations of signal.This signal allows once to read, and does not increase progressively inner 15 minutes clocks, or upgrades any time of relevant calculation.The key feature of recognizing time signal is that " time interval identification signal " is crucial.Time interval identification signal is used for sign has gone over a time cycle, or a non-timed time interval information request.
Be used to guarantee the suitable order of reading 15 minute readout time at interval.If receive a readout time at interval with suitable order, store data so.But as if receive a readout time at interval with the order of mistake, the time dependent data with all storages are reset to initial value so.Suppose to receive readout time at interval with suitable order at every turn, just store data.This system that makes can compensate instrument and break away from the situation about connecting again afterwards that connects from EDR.
In an optional embodiment, in the process of a circulation readout error, system will expect automatically that the next one reads the identification signal of the next plan of round-robin.For example, if do not receive " 15 minutes readings " (identification signals of three 1200Hz derations of signal) for a certain reason, system will automatically expect to be designated the next reading of " 30 minutes readings " (identification signals of four 1200Hz derations of signal) so.This has prevented that a mistake in the reading circulation for good and all is deposited in the follow-up reading circulation and destroys all follow-up datas.
An advantage of the invention is that the identification signal of each circulation reading is based on the width of a plurality of single clock signals.But, in an optional embodiment, read and can carry out, and can carry out the different time cycles in the different time intervals.For example, can carry out four at interval 30 minutes make on 2 hour time cycle independently reads.In addition, in optional embodiment, can use initializing signal, time interval identification signal and the clock signal of other width and frequency.
In case system is initialised and has discerned correct readout time at interval, master processor processes is from the data of instrument, and is stored in the nonvolatile memory that is embedded among the ASIC.Except the essential information of water consumption and so on, the present invention also can monitor other data and offer public public institution with the further feature that relevant client is used.These features comprise: the Leak Detection in cycle current time; Leak Detection on one period date; The flow/direction indication; The cutout on one period date; Detect with refluxing.The data of these features are stored in the designated sector or " register " of storer as " bit " or binary digit.According to the quantity of the required potential value of the data of each feature, each register generally comprises 2 or 3 bits.But, in optional embodiment, can use more bits.
Leak detection feature comprises at first sets up a minimum volume (V in cycle stipulated time
Min).The V of a particular meter
MinBased on its size and capacity, and it generally is that manufacturer by instrument provides.In the present embodiment, in 15 minute time cycle, V
MinIt is 0.1 gallon.If in the 24 former hours periods, in each 15 minute time interval, the volume that flows through instrument surpasses V continuously
Min, so because in " non-peak " hour, the use of water should be lower than V
MinSo, may have leakage.The example of non-peak hours is between midnight and early morning.
During normal running, whether system monitoring circulation in each 15 minutes surpasses V to determine flow volume
MinWhen this thing happens, calculate above V
MinRound-robin quantity.The V that surpasses to specified quantity in 24 hours periods
MinPeriod set up a predetermined threshold value.If surpass this threshold value, may there be leakage in indication so.In the present embodiment, in each 24 hours period 96 independently to read the round-robin threshold value in 15 minutes be 50.This means if surpass V in former 50 circulations of 96 round-robin
Min, system will indicate and may have leakage so.In optional embodiment, can use a plurality of threshold values to indicate the continuation of leakage.For example, first threshold setting of 50 can be the intermittent leakage of indication, and second 50 threshold setting is the continuous system leak of indication.
Figure 11 shows the chart of the bit value of pointing out to exist leakage.As mentioned above, illustrated embodiment has used two threshold values to indicate the continuation of leakage.The indication of " 00 " bit value does not surpass 50-95 as yet and reads the round-robin first threshold, has surpassed V and flow through volume
MinThis is the initial value of system, and there is not leakage in its indication.The indication of " 01 " bit value has reached 50-95 and has read the round-robin first threshold, but does not surpass as yet.May there be intermittent the leakage in this indication mechanism.The indication of " 10 " bit value has reached 96 second threshold value.This is the indication that may have continuous release in the system." 11 " bit value indication leak detection feature is not useable for this embodiment of the present invention.
If indicated leakage by " 01 " or " 10 " bit value, so start-up system alert notice public public institution.Warning can be taked the LCD indication form on the instrument display, and/or is relayed to the form of the signal of utility computer system.Then, can the maintenance that have and carry out any necessity of dispatch personnel to confirm to leak.In other embodiments, can use different threshold values.In addition, can use the more bits value to hold two uses with upper threshold value.
Combine another feature of carrying out with Leak Detection and be total fate of determining the leakage that monitors.In the present embodiment, the intermittence pointed out of system monitoring and/or the fate of continuous release.Figure 12 shows the indication chart of the bit value of the fate of detected continuous release.In the present embodiment, used the 3-bit value, so that improve the degree of accuracy and the scope of feature.The indication of " 000 " bit value does not detect leakage as yet.This is the initial value of system.The indication of " 001 " bit value has detected 1-2 days leakage." 010 " indication has detected 3-7 days leakage.The indication of " 011 " bit value has detected 8-14 days leakage.The indication of " 100 " bit value has detected 15-21 days leakage.The indication of " 101 " bit value has detected 22-34 days leakage.The indication of " 110 " bit value has detected the leakage more than 35 days." 111 " bit value indicative character can not be used in this embodiment of this system.In optional embodiment, different fate scopes can be used for different bit values.In addition, the total fate of possible leakage that can use the more bits value to increase to write down.An optional embodiment has used the bit value among Figure 12, to indicate the fate of detected intermittence or continuous release.
Another available feature is the flow/direction indicator of instrument in the present embodiment.This feature has shown, upgrades circulation at any given LCD, flows through the relative discharge and the direction of the water of instrument.In the present embodiment, when solar cell provided enough energy, primary processor upgraded LCD in per 1/2 second.This feature has also shown the direction (that is forward or backward) that flows through instrument.As a kind of mode of a kind of detection system fault and/or deceptive practices, the flow of current and direction are valuable information.The type of the deceptive practices of finding comprises that the client physically disconnects instrument from supply line, does not write down consumption so that receive water.The deceptive practices of another kind of form comprise, the client reverses the direction of instrument, thereby makes its " revolution ".In this case, client's actual used water caused system log (SYSLOG) negative use amount or " backflow ".In fact, the client has deducted water consumption from his service recorder.
Figure 13 a shows the bit value of the flow/direction feature that embodiments of the invention use and the chart of LCD icon state.For instrument has been scheduled to several different relative discharges.Instrument is not flow through in " Zero (zero) " indication." Q
START" the normal use traffic set up of the system that is designated as." 1/2 Max Flow (maximum flow) " indication flow has reached half of maximum flow of this particular meter.The LCD icon is used for when visual examination the state of the flow/direction of instrument is shown to the public utilities personnel.For there not being situation about flowing, discharge diagram is marked on the LCD display and closes.If flow satisfies " Q
START" level, show a single the arrow icon so.If flow satisfies " 1/2 Max Flow " level, show that so an afterbody has the single the arrow icon of bar graph target.In addition, have the positive flow direction of the arrow icon indication of "+" mark, and "-" indication negative or reflux." 00 " bit value indicating instrument does not detect mobile.The indication of " 01 " bit value detects " Q in instrument since the last LCD update cycle
START" flow.The indication of " 10 " bit value detects the flow of " 1/2 MaxFlow "." 11 " bit value indication flow/direction feature is not useable for this embodiment of this system.
Combining another feature that works with the flow/direction feature is that monitoring does not have water to flow through the ability of the consecutive days of instrument.This feature of great use, has been spent a couple of days and is not had water to flow through their instrument because most of client is unlikely in detecting possible deceptive practices.Do not have water to flow through predetermined fate if monitoring system monitors, can check whether instrument deceptive practices or fault take place from the public public institution dispatch personnel so.
The mode of this feature performance function is identical with the consecutive days of the monitoring leakage shown in the Figure 12 of front.Figure 13 b shows the chart of 3-bit value of an embodiment of this feature.There is not anhydrous continuous day of flowing through instrument in " 000 " bit value indication 35 day cycle in front.This is the initial value of system.The indication of " 001 " bit value has detected 1-2 days anhydrous flowing through.The indication of " 010 " bit value detects 3-7 days anhydrous flowing through.The indication of " 011 " bit value detects 8-14 days anhydrous flowing through.
The indication of " 100 " bit value detects 15-21 days anhydrous flowing through.The indication of " 101 " bit value detects 22-34 days anhydrous flowing through.The indication of " 110 " bit value detects anhydrous flowing through more than 35 days." 111 " bit value indicates this feature to be not useable for this embodiment of this system.In optional embodiment, different fate scopes can be used for different bit values.In addition, the possible anhydrous total fate that flows through that can use the more bits value to increase to write down.
Figure 13 c shows the chart that has the 2-bit value among the optional embodiment of this feature.The mode of this feature performance function is identical with the mode that the several threshold monitors of the usefulness shown in above-mentioned Figure 11 leak.But, in this embodiment, for the anhydrous specified number of days that flows through has been set up two threshold values.First threshold is 7 days anhydrous flowing through.Second threshold value is 14 days anhydrous flowing through.The indication of " 00 " bit value does not surpass first threshold value of 7 days as yet.This is the initial value of system.The indication of " 01 " bit value reaches but does not surpass 7-14 days anhydrous first threshold values that flow through.This also is the indication that may have deceptive practices or fault in the system.The indication of " 10 " bit value has reached 14 days anhydrous second threshold values that flow through.This also is to have the existing deceptive practices or the indication of fault in the system." 11 " bit value indication eigen is not useable for this embodiment of the present invention.
An alternative embodiment of the invention is to detect the feature that refluxes by instrument." backflow " is exactly that reverse direction flow is crossed instrument.This is the indication that possible have deceptive practices, in this case, and client's inverted running instrument, and from instrument, delete water consumption.In some systems, " backflow preventer " has been installed in system, mobile in the other direction to prevent.These a kind of unidirectional value types normally well known in the prior art.If backflow preventer is installed in the system, rely on the detection of the backflow of this feature can indicate the maloperation or the fault of backflow preventer.
Figure 14 shows the chart of the bit value of peak value continuous backflow volume (PCBV) feature.This examples measure of feature is crossed over the continuous backflow volume in 15 minute continuous cycle.In the embodiment shown, the continuous backflow of instrument in 35 of the system monitoring front day cycle.If backflow preventer is not installed, each system generally has the backflow of certain level.If backflow preventer has been installed, the backflow volume of any measurement will be possible in-problem indication.By being that the system that has backflow preventer sets up " Min Value " threshold value, to consider the backflow of this normal level.In the present embodiment, this value is 0.1 gallon.Also set up the backflow that " Max Value " indicates abnormal level for the system that do not have a backflow preventer.In the present embodiment, this value is 10.0 gallons.As shown in chart, " 00 " bit value indicates the PCBV in nearest 35 day cycle to be lower than Min Value level.This is the indication of normal condition that has or do not have any system of backflow preventer.This also is the initial value of system." 01 " bit value indicates the PCBV in nearest 35 day cycle to be higher than Min Value level, but is lower than Max Value level.This is the exception condition (deceptive practices or maloperation) that indication has the system of backflow preventer.It has pointed out not have the normal condition of the system of backflow preventer." 10 " bit value indicates the PCBV level in nearest 35 day cycle to be higher than Max Value level.This is any exception condition (deceptive practices or maloperation) that has or do not have the system of backflow preventer of indication." 11 " bit value indicates this feature to be not useable for this embodiment of the present invention.In other embodiments, can use different threshold values according to the characteristic of system.In addition, can use more threshold value to hold two uses with upper threshold value.
An optional embodiment who detects backflow relates to monitoring peak backflow volume (PBV) and replaces above-mentioned peak value continuous backflow volume.This commercial measurement any time at interval in surge or " peak value " by instrument reflux.As mentioned above, each system generally has certain level of backflow.As front embodiment,, consider the backflow of normal level by for the system with backflow preventer sets up " Min Value " threshold value.Also, the system that does not have backflow preventer indicates unusual level of backflow for setting up one " Max Value ".Figure 15 shows the chart of the bit value of PBV monitoring feature.In the embodiment shown, system monitoring front peak backflow volume of instrument in the circulation in any 15 minutes in 35 day cycle.As shown in chart, " 00 " bit value indicates the PBV in nearest 35 day cycle to be lower than the MinValue level.This indication has or does not have the normal condition of any system of backflow preventer.This also is the initial value of system." 01 " bit value indicates the PBV in nearest 35 day cycle to be higher than Min Value level, but is lower than Max Value level.This indication has the exception condition (deceptive practices or maloperation) of the system of backflow preventer.Its indication does not have the normal condition of the system of backflow preventer." 10 " bit value indicates the PBV level in nearest 35 day cycle to be higher than Max Value level.This indication has or does not have the exception condition (deceptive practices or maloperation) of any system of backflow preventer." 11 " bit value indicates this feature to be not useable for this embodiment of the present invention.In other embodiments, can use different threshold values according to the characteristic of system.In addition, can use the more bits value to hold the use of plural threshold value.
Can be used in various communication protocol of the present invention and the feature in explanation, will notice that especially various different embodiment can use, different or all feature and agreement.Each public utilities can be used what aspect and feature according to their system's needs and ability decision.In addition, each value for communication protocol and feature demonstration can change according to utility needs.Therefore, the present invention provides great dirigibility for monitoring comprises by the Leak Detection of the self-powered Electronic Instrument System of Wiegand lead and the automated system of deceptive practices detection.
Although the embodiment in conjunction with limited quantity has illustrated the present invention,, those skilled in the art can know by means of this explanation, can design other embodiment and do not break away from here the scope of the present invention that discloses.Therefore, scope of the present invention only is subjected to the restriction of claims.
Claims (40)
1. the device of a measuring instrument comprises:
The instrument of the consumption of monitoring distribution system;
Electronic data recorder is used to handle the data from instrument;
External unit is used for utilizing the processing of communication protocol control electronic data recorder data;
Wherein communication protocol comprises initializing signal, time interval identification signal and clock signal,
Wherein said time interval identification signal utilizes the peculiar deration of signal of time interval identification signal to discern current circulation reading from the data of described instrument, and the described peculiar deration of signal comprises the multiple of signal cycle width.
2. device according to claim 1, wherein instrument is a utility meter.
3. device according to claim 2, wherein utility meter is a water meter.
4. device according to claim 3, wherein said water meter is self-powered.
5. device according to claim 4 wherein provides electric power by the Wiegand lead to water meter.
6. device according to claim 5, wherein the Wiegand lead provides electric power to electronic data recorder.
7. device according to claim 1, wherein external unit is a meter interface unit.
8. device according to claim 1, wherein the duration of initializing signal is between 25 and 100 milliseconds.
9. device according to claim 1, wherein clock signal is 1200 hertz frequency work.
10. device according to claim 1, wherein clock signal is 19.2 kilo hertzs frequency work.
11. device according to claim 1, wherein electronic data recorder activates with 15 minutes the time interval by communication protocol.
12. device according to claim 11, wherein time interval identification signal is discerned per 15 minutes time interval in hour time cycle.
13. device according to claim 1, wherein electronic data recorder is handled the data from instrument, to detect the leakage in the distribution system.
14. device according to claim 13, it is continuous wherein leaking.
15. device according to claim 13, it is intermittent wherein leaking.
16. device according to claim 13, wherein electronic data recorder is further handled the data from instrument, how long has existed to determine to leak.
17. device according to claim 1, wherein electronic data recorder is handled the data from instrument, to determine the flow in the distribution system.
18. device according to claim 1, wherein electronic data recorder is handled the data from instrument, with the direction of determining to flow in the distribution system.
19. device according to claim 1, wherein electronic data recorder is handled the data from instrument, does not have stream to detect in the distribution system.
20. the device of a measuring instrument comprises:
The instrument of the consumption of monitoring distribution system;
Electronic data recorder is used to handle the data from instrument, does not have stream so that detect in the distribution system, and determines do not exist stream how long to continue;
External unit is used for utilizing the processing of communication protocol control electronic data recorder data;
Wherein communication protocol comprises initializing signal, time interval identification signal and clock signal, wherein said time interval identification signal utilizes the peculiar deration of signal of time interval identification signal to discern current circulation reading from the data of described instrument, and the described peculiar deration of signal comprises the multiple of signal cycle width.
21. device according to claim 1, wherein electronic data recorder is handled the data from instrument, to detect the backflow in the distribution system.
22. device according to claim 21, it is continuous wherein refluxing.
23. one kind is used for the device that measuring instrument uses, comprises:
The instrument of the use of monitoring distribution system;
Be used to receive device from the data of instrument;
Be used to handle device from the data of instrument, wherein utilize communication protocol to control the described device that is used to handle from the data of instrument by external unit, described communication protocol comprises initializing signal, time interval identification signal and clock signal, wherein said time interval identification signal utilizes the peculiar deration of signal of time interval identification signal to discern current circulation reading from the data of described instrument, and the described peculiar deration of signal comprises the multiple of signal cycle width; With
Be used for detecting the device that distribution system leaks.
24. device according to claim 23 further comprises:
Be used for determining the device of distribution system flow.
25. device according to claim 23 further comprises:
The device of the direction that is used for determining that distribution system flows.
26. device according to claim 23 further comprises:
Be used for detecting the device that there is not stream in distribution system.
27. device according to claim 23 further comprises:
Be used for detecting the device that distribution system refluxes.
28. one kind is calculated the method that public utilities uses a model, comprising:
Reception is from the use data of the instrument of the use of monitoring distribution system;
Handle and use data to use a model to calculate public utilities, wherein utilize communication protocol to handle the step of using data by external unit, described communication protocol comprises initializing signal, time interval identification signal and clock signal, wherein said time interval identification signal utilizes the peculiar deration of signal of time interval identification signal to discern the current circulation reading that uses data, and the described peculiar deration of signal comprises the multiple of signal cycle width; With
The public utilities predefine condition of identification in the distribution system that use a model.
29. method according to claim 28, wherein the predefine condition is to indicate with the grade of size.
30. method according to claim 29, wherein the predefine condition is to indicate with at least 3 grades of size.
31. method according to claim 28, wherein public utilities uses a model and determines with the run duration scale.
32. method according to claim 28, wherein the predefine condition comprises the leakage in the distribution system.
33. method according to claim 28, wherein the predefine condition comprises the flow in the distribution system.
34. method according to claim 28, wherein the predefine condition comprises the direction that flows in the distribution system.
35. method according to claim 28, wherein the predefine condition comprises and does not have stream in the distribution system.
36. method according to claim 28, wherein the predefine condition comprises the backflow in the distribution system.
37. method according to claim 28, wherein instrument is a water meter.
38. according to the described method of claim 37, wherein said water meter is self-powered.
39., wherein described water meter is powered by the Wiegand lead according to the described method of claim 38.
40. one kind is calculated the method that public utilities uses a model, comprising:
Receive the step of the use amount data of distribution system;
Handle the use amount data to calculate the step that public utilities uses a model, wherein use communication protocol to control the step of described processing use amount data by external unit, wherein said communication protocol comprises initializing signal, time interval identification signal and clock signal, wherein said time interval identification signal utilizes the peculiar deration of signal of time interval identification signal to discern the current circulation reading of use amount data, and the described peculiar deration of signal comprises the multiple of signal cycle width; With
According to the public utilities step of predefine condition in the identification distribution system that uses a model.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/US2003/035032 WO2005047828A1 (en) | 2003-11-04 | 2003-11-04 | Communications and features protocol for a measuring water meter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1732376A CN1732376A (en) | 2006-02-08 |
| CN100480637C true CN100480637C (en) | 2009-04-22 |
Family
ID=34589288
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200380108130.7A Expired - Fee Related CN100480637C (en) | 2003-11-04 | 2003-11-04 | Communications and features protocol for a measuring water meter |
Country Status (5)
| Country | Link |
|---|---|
| CN (1) | CN100480637C (en) |
| AU (1) | AU2003291708A1 (en) |
| HK (1) | HK1085009A1 (en) |
| MX (1) | MXPA05004822A (en) |
| WO (1) | WO2005047828A1 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1965180A1 (en) | 2007-02-09 | 2008-09-03 | GWF MessSysteme AG | Method for recognising an exterior action on the counter of a meter for a flowing medium and such a meter |
| EP2023096A1 (en) | 2007-08-09 | 2009-02-11 | GWF MessSysteme AG | Measuring device with lead sealing and method for lead sealing the measuring device for a flowing medium |
| DE102011105778A1 (en) * | 2011-06-15 | 2012-12-20 | Techem Energy Services Gmbh | Method and device for evaluating the consumption of a medium in a supply system |
| GB2553681B (en) | 2015-01-07 | 2019-06-26 | Homeserve Plc | Flow detection device |
| CN105987721A (en) * | 2015-01-27 | 2016-10-05 | 深圳市博电电子技术有限公司 | Water consumption display system and method |
| GB201501935D0 (en) | 2015-02-05 | 2015-03-25 | Tooms Moore Consulting Ltd And Trow Consulting Ltd | Water flow analysis |
| GB2545830B (en) * | 2015-03-13 | 2019-09-18 | Centrica Hive Ltd | Flow determination |
| EP3067671A1 (en) | 2015-03-13 | 2016-09-14 | Flowgem Limited | Flow determination |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3685353A (en) * | 1969-05-06 | 1972-08-22 | Rockwell Mfg Co | Self generating remote reader register |
| US4804957A (en) * | 1985-11-27 | 1989-02-14 | Triad Communications, Inc. | Utility meter and submetering system |
| US5010568A (en) * | 1989-04-04 | 1991-04-23 | Sparton Corporation | Remote meter reading method and apparatus |
| US5553094A (en) * | 1990-02-15 | 1996-09-03 | Iris Systems, Inc. | Radio communication network for remote data generating stations |
| US5261275A (en) * | 1991-09-12 | 1993-11-16 | Davis Robert J | Water meter system |
| US5748104A (en) * | 1996-07-11 | 1998-05-05 | Qualcomm Incorporated | Wireless remote telemetry system |
| US6424270B1 (en) * | 1998-10-30 | 2002-07-23 | Schlumberger Resource Management Services, Inc. | Utility meter interface unit |
| US20030009301A1 (en) * | 2000-05-30 | 2003-01-09 | M.B. Anand | Integrated utility meter-reading, billing, payment and usage management system |
| US6819292B2 (en) * | 2001-03-09 | 2004-11-16 | Arad Measuring Technologies Ltd | Meter register |
-
2003
- 2003-11-04 MX MXPA05004822A patent/MXPA05004822A/en active IP Right Grant
- 2003-11-04 WO PCT/US2003/035032 patent/WO2005047828A1/en active Application Filing
- 2003-11-04 CN CN200380108130.7A patent/CN100480637C/en not_active Expired - Fee Related
- 2003-11-04 AU AU2003291708A patent/AU2003291708A1/en not_active Abandoned
-
2006
- 2006-06-24 HK HK06107194A patent/HK1085009A1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| CN1732376A (en) | 2006-02-08 |
| AU2003291708A1 (en) | 2004-06-06 |
| MXPA05004822A (en) | 2005-11-17 |
| AU2003291708A8 (en) | 2005-06-06 |
| HK1085009A1 (en) | 2006-08-11 |
| WO2005047828A1 (en) | 2005-05-26 |
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