CN102938180A - Transformer anti-theft tracking device - Google Patents

Abstract

The invention relates to an anti-theft technology, and particularly relates to a transformer anti-theft tracking device. The transformer anti-theft tracking device is characterized in that the device comprises a case, and a GPS (global positioning system) module, a GSM (global system for mobile communications) module, a singlechip, an alarm detection circuit, a power supply circuit, a lithium battery and a charging circuit, which are all arranged in the case, wherein the singlechip has two serial interfaces; one serial interface is connected with the GPS module through a data line, and the other serial interface is connected with the GSM module through a data line; the alarm detection circuit is connected with an interrupt port of the singlechip through a data line; and the power supply circuit is connected with the singlechip through a conductor to supply power to the singlechip. The transformer anti-theft tracking device can set and control the number of a monitor center, set the device self-checking time, start/close tracking, query transformer state and the like by using short messages through a center so as to detect vibration and inclination when the transformer is static, and the transformer anti-theft tracking device does not detect vibration and inclination of the transformer when the transformer moves. The transformer anti-theft tracking device provided by the invention has the advantages of novel design, high installation convenience, real-time monitor, good anti-theft effect and the like, and is particularly suitable for transformers for power distribution of rural power grids.

Description

The transformer anti-theft follow-up mechanism

Technical field

The present invention relates to the theft protection technology, specifically a kind of transformer anti-theft follow-up mechanism of simple in structure, good anti-theft effect.

Background technology

As everyone knows, Transformers for Rural Networks is easy to occur theft protection, breakoff phenomenon, the measure one that solve now the transformer theft, destroys is to be transformer cover one cabin, allow transformer place in the cabin, the 2nd, the special messenger is set nurses, the deficiency of these two kinds of methods is the power supply costs that increased empty rural area, brings a lot of inconveniences for people's production, life.

In addition, the GPS positioning system has been widely used in the product for civilian use fields such as auto navigation, ship's fix now, the GSM mobile network forms cellular by a plurality of base stations, realize the national large tracts of land network coverage, numbering cell_id that can be by reading the base station and the numbering LAC of residential quarter locate the geographic position.

Summary of the invention

The objective of the invention is to overcome above-mentioned the deficiencies in the prior art, provide a kind of GPS navigation and GSM base station two locator meamss, position and realize to follow the trail of to setting transformer, can effectively prevent the device that transformer is stolen

The present invention can reach by following measure:

A kind of transformer anti-theft follow-up mechanism, comprise the GPS module, gsm module, single-chip microcomputer, the alarm detection circuit, power circuit, lithium battery and charging circuit, it is characterized in that being provided with housing, the GPS module, gsm module, single-chip microcomputer, the alarm detection circuit, power circuit, lithium battery and charging circuit all are arranged in the housing, single-chip microcomputer has the dual serial interface, a serial line interface is connected with the GPS module through data line, another serial line interface is connected with GSM through data line, the alarm detection circuit is connected with the middle fracture of single-chip microcomputer through data line, power circuit provides power supply through wire for single-chip microcomputer, their parameter and the course of work can be utilized note to arrange and control by alarm center, comprise Surveillance center's number is set, the self-check of device set of time, start, close tracking, transformer state inquiry etc.

Alarm detection circuit of the present invention is comprised of two vibroswitches and two ball displacement switch, is separately fixed on the circuit board, and the percussion vibration of vibroswitch monitoring transformer uprightly is welded on the circuit board in the housing; And the angle of ball switch when to be sensor transformer move changes, and horizontal welding is connected on the circuit board in the housing.

The present invention can utilize note to arrange and controls by alarm center, comprise Surveillance center's number, self-check of device set of time, startup/close tracking, transformer state inquiry etc. are set, in the static situation of transformer, " vibration " " inclination " detected; When transformer moves, will no longer detect " vibration " " inclination ", have the advantages such as modern design, easy for installation, Real Time Monitoring, good anti-theft effect, the transformer that is specially adapted in the rural power grids distribution uses.

Description of drawings

Fig. 1 is a kind of structured flowchart of the present invention.

Fig. 2 is a kind of implementing circuit figure of alarm detection circuit among the present invention.

Fig. 3 is a kind of implementing circuit figure of power circuit among the present invention.

Fig. 4 is a kind of implementing circuit figure of charging circuit among the present invention.

Embodiment

The invention will be further described below in conjunction with accompanying drawing.

As shown in the figure, a kind of transformer anti-theft follow-up mechanism, comprise GPS module 1, gsm module 2, single-chip microcomputer 3, alarm detection circuit 4, power circuit 5, lithium battery 6 and charging circuit 7, the structure of above-mentioned each ingredient and the interconnected relationship between them are same as the prior art, this does not give unnecessary details, the invention is characterized in and be provided with housing, housing can the ABS plastic shell, its water resistance is good, be applicable to open-air the installation, also can adopt the sheet metals such as stainless steel to make, be provided with board positioning means in the housing, housing is outer can to arrange the Connection Block that is connected with transformer, connection handle etc., housing is outer can also to arrange alarm, alarm also can be arranged on other position of transformer, alarm is connected with warning circuit among the present invention through wire, alarm adopts the caution of high-decibel sound and with dazzling flashing lamp, play fright and frighten resistance, expel robber's function, alarm arrangement and the interconnected relationship between them are same as the prior art, and this does not give unnecessary details, GPS module 1 adopts the copernicus series module of TRIMBLE company, for ultra-thin, low consumption, the GPS module is installed on the surface.Has very small dimensions (2.54mm * 19mm * 19mm), super low-power consumption representative value 93.9mW), high sensitivity :-152dBm; Quick first location (cold start-up): 39 seconds flexibly: support active or passive antenna; It is the wireless module of compact, high reliability that gsm module 2 adopts SIM900A, possesses GSM/GPRS 900/1800MHz function, realizes the high-speed transfer of voice, SMS, data and facsimile message with small size and low-power consumption.SIM900A can satisfy the nearly all application requirements of M2M, the design of especially small and exquisite, compact.Its physical size is: 24mm x 24mm x 3mm; Gsm module 2 is through the work of GSM base station, and the GSM mobile network is made of cellular a plurality of base stations, the network coverage of realization large tracts of land.Numbering cell_id that can be by reading the base station and the numbering LAC of residential quarter locate the geographic position.Specific algorithm is exactly the LAI data of at first obtaining the machine present position, then sets up a look-up table, numbers and the corresponding geographic position of cell number with the base station in the table.Just can know the geographic position of oneself by tabling look-up; Short message coded format, short message SMS have dual mode to come sending and receiving SMS message: Text Mode or PDU(protocol description unit) pattern.Text Mode can only send common ascii character, and will send picture, the tinkle of bells; The character of other coding (such as Chinese) just must adopt the PDU pattern.Content to adopt three kinds of coded systems to encode and to send in the PDU pattern: be respectively 7-bit coding, 8-bit coding, 16-bit coding.The 7-bit coding is used for sending common ascii character; The 8-bit coding is generally used for sending data-message, such as picture and the tinkle of bells etc.; And the 16-bit coding is used for sending the Unicode character.Under these three kinds of coded systems, the max number of characters that can send is respectively 160,140,70.If send the Unicode coded system that Chinese must adopt the PDU pattern.In this device, transmission be the character of non-Chinese, so short message adopts the coded system of the Bit7 under the PDU pattern; It is Texas Instruments (TI) a kind of 16 super low-power consumptions of beginning to introduce to the market in 1996, the mixed-signal processor with reduced instruction set computer that single-chip microcomputer 3 adopts the MSP430 series monolithics.Peripheral resource on wherein MSP430F149 the is integrated more sheet, comprise: 12 A/D, accurate analog comparator, hardware multiplier, 2 class frequencys can reach the clock module of 8MHZ, and 2 with catching in a large number/16 bit timing devices of comparand register, house dog, can realize asynchronous, synchronous serial communication interface etc. for 2, the MSP430F149 single-chip microcomputer has ultralow power consumption, adopts 1.8-3.6V voltage.Thereby when it was moved under the Clock of 1MHz, the minimum meeting of the electric current of chip was about 165 μ A, and the lowest power consumption under the RAM Holdover mode only has 0.1 μ A.Be particularly useful for the system that battery works long hours.Adopt the 8M crystal as work clock; Owing to this device needs hidden installation, the scheme of utilization dismounting lead-in wire winding transformer is also inadvisable.Consider from safety factor and the antitheft detection effect of installing itself, determine not adopt this detection mode, but adopt the method for aviation connector intraconnections, the reasons are as follows: 1: lead-in wire twines transformer may cause creepage, discharge, thunderbolt; 2: lead-in wire easily causes short circuit (crust of the device is connected with transformer shell, but is not connected on circuit part and the shell electrical equipment) with transformer shell; 3: although install the hidden top that is installed on transformer body, because device must need to connect a phase two lines of low-pressure side, be used for power taking, internal cell charging and outage detection.Inlead will inevitably cause the attention of stealer, when running into the violence such as vibrations dismounting when transformer, produces vibrations and reports to the police, and alarm detection circuit 4 arranges two vibroswitches 11,12 and two ball displacement switch 13,14, is separately fixed on the circuit board.And do not adopt the scheme of traditional acceleration transducer, and simplified circuit design, be improved reliability, wherein the percussion vibration of vibroswitch monitoring transformer uprightly is welded on the circuit board in the device; And the angle of ball switch when to be sensor transformer move changes, horizontal welding is connected on the interior circuit board of device, power circuit 5 among the present invention, lithium battery 6 and charging circuit 7 consist of power circuit, external power source of the present invention is taken from the low-pressure side of substation transformer, through behind the regulator rectifier circuit, provide and charge the battery, subsequent conditioning circuit (single-chip microcomputer, GPS, GSM etc.) power supply is appreciated that as being provided by online battery, considers that device is in the closed shell, and heat radiation is a problem, so switch voltage-stabilizing circuit LM2596-5 has partly been adopted in voltage stabilizing, it is the buck regulator spare with the output of 3A electric current that U.S. state half produces.Advantage is conversion efficiency up to 75-88%, itself has perfect heat protection, and output circuit is large, and peripheral cell is few.Maximum input voltage reaches 40V, and working temperature-40 ℃～+ 125 ℃ has been avoided the heating problem of power unit basically.The requirement of needed 0.5A when 3A electric current fan-out capability can satisfy lithium cell charging; Have the back battery in the present invention, being automatically converted to during (adopting the 3.7V/4AH lithium battery) outside dead electricity to provide 48 hours power supply support.Charging circuit adopts low-cost high integrated lithium ion charging chip CN3052, and the charging circuit that can carry out the constant current/constant voltage charging possesses perfect charging process and comprises trickle, constant current (CC) and constant voltage (CV) charge mode; Single-chip microcomputer 3 has the dual serial interface, a serial line interface is connected with GPS module 1 through data line, another serial line interface is connected with gsm module 2 through data line, alarm detection circuit 4 is connected with the middle fracture of single-chip microcomputer 3 through data line, power circuit 5 provides power supply through wire for single-chip microcomputer, the present invention adopts imported from America microprocessor control technology, and is stolen, destroyed to the outage of mains supply circuit, transformer in conjunction with the advantage of GSM mobile handset net, moved and transport.Can concealed be installed on monitoring and follow-up mechanism on the substation transformer body, utilize the GSM mobile network to realize the interconnected of on-the-spot follow-up mechanism and remote monitoring center, form a distribution transformer theft tracing monitoring system.When personnel guarded distribution transforming near quilt, warning device carried out the caution of high-decibel sound and with dazzling flashing lamp, plays fright and frightening resistance, expels robber's function.When substation transformer is dismantled by force and is transported to when concealing the den, monitoring and follow-up mechanism itself include antitheft measuring ability, the tracing monitoring system can monitor and record the transportation track of stolen substation transformer in real time, have the advantages such as novel in design, easy for installation, Real Time Monitoring, good anti-theft effect, the transformer that is specially adapted in the rural power grids distribution uses.

Claims (2)

1. transformer anti-theft follow-up mechanism, comprise the GPS module, gsm module, single-chip microcomputer, the alarm detection circuit, power circuit, lithium battery and charging circuit, it is characterized in that being provided with housing, the GPS module, gsm module, single-chip microcomputer, the alarm detection circuit, power circuit, lithium battery and charging circuit all are arranged in the housing, single-chip microcomputer has the dual serial interface, a serial line interface is connected with the GPS module through data line, another serial line interface is connected with GSM through data line, the alarm detection circuit is connected with the middle fracture of single-chip microcomputer through data line, and power circuit provides power supply through wire for single-chip microcomputer.

2. a kind of transformer anti-theft follow-up mechanism according to claim 1, it is characterized in that the alarm detection circuit is comprised of two vibroswitches and two ball displacement switch, two vibroswitches and two ball displacement switch are separately fixed on the circuit board, the percussion vibration of vibroswitch monitoring transformer, uprightly be welded on the circuit board in the housing, and the angle of ball switch when to be sensor transformer move changes, and horizontal welding is connected on the circuit board in the housing.

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