CN203870136U - Inspecting host for electricity larceny prevention - Google Patents
Inspecting host for electricity larceny prevention Download PDFInfo
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- CN203870136U CN203870136U CN201420220082.6U CN201420220082U CN203870136U CN 203870136 U CN203870136 U CN 203870136U CN 201420220082 U CN201420220082 U CN 201420220082U CN 203870136 U CN203870136 U CN 203870136U
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- 230000005611 electricity Effects 0.000 title abstract description 15
- 230000002265 prevention Effects 0.000 title abstract description 5
- 238000012545 processing Methods 0.000 claims abstract description 24
- 238000007689 inspection Methods 0.000 claims abstract description 23
- 238000001514 detection method Methods 0.000 claims description 34
- 239000000523 sample Substances 0.000 claims description 15
- 238000001914 filtration Methods 0.000 claims description 7
- 238000012360 testing method Methods 0.000 claims description 6
- 230000003321 amplification Effects 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 4
- 238000007493 shaping process Methods 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000005259 measurement Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000013461 design Methods 0.000 abstract description 2
- 230000006399 behavior Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
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Abstract
Provided is an inspecting host for electricity larceny prevention and belongs to the field and measurement equipment. A meter-front current transformer CT is disposed in front of an intelligent electric meter. A wireless current detecting unit is arranged in a monitored line. The inspecting host is composed of the wireless current detecting unit, a Zigbee module, the meter-front current transformer CT, a pre-stage processing unit, a magnetic field detecting unit, a high-frequency detecting unit, a CPU, a GPRS module, and the intelligent electric meter. The wireless current detecting unit is wirelessly connected with the Zigbee module. The Zigbee module is connected in series with the CPU. The meter-front current transformer CT is connected with the pre-stage processing unit. The pre-stage processing unit is connected with the A/D data interface of the CPU. The magnetic field detecting unit and the high-frequency detecting unit are correspondingly connected with the I/O interfaces of the CPU. The CPU is correspondingly connected with the GPRS module and the intelligent electric meter through series ports. The inspecting host may monitor various electricity larceny behaviors and define the types and the positions of electricity larceny events so as to contribute to improvement in accuracy and success rate of inspection for electricity larceny prevention. The inspecting host can be used in the field of design and manufacture of inspecting devices for electricity larceny prevention.
Description
Technical field
The utility model belongs to measurement mechanism field, relates in particular to a kind of for anti-electricity-theft checking device.
Background technology
For a long time, stealing problem affects completing of the every performance assessment criteria of power supply enterprise always, because Prevention Stealing Electricity Technology application means level is low, and the variation of stealing mode, stealing technology is day by day intelligent, industrialization, and electricity filching behavior is more hidden, seriously damage the interests of electric power enterprise, upset for electricity consumption order.What existing anti-electricity-theft inspection product had cannot monitor electricity filching behavior especially high-tech electricity filching behavior comprehensively, and what have cannot accurately define the type of stealing event.
For example, Granted publication day is on May 8th, 2013, Granted publication number is to disclose " a kind of anti-electricity-theft device and system thereof " in the Chinese patent of CN 202929077U, this device comprises processor, electric quantity collector, ammeter data grabber, power supply, storer and clock chip, electric quantity collector gathers the electrical parameter of ammeter box inlet wire side, and ammeter data grabber is by intercepting the electrical parameter that obtains each ammeter; Processor contrasts the electric weight sum in the electric weight and the each ammeter electrical parameter that calculate by ammeter box inlet wire side electrical parameter, as the difference of the two exceedes predetermined threshold, thinks and has stealing event to occur.This system comprises anti-electricity-theft device and main website, and the electrical parameter of inlet wire side electrical parameter and each ammeter is reached main website by anti-electricity-theft device, and the inlet wire side electric weight of main website to ammeter box and the electric weight sum of each ammeter are compared, and sends warning message when abnormal.But its existence can not be monitored electricity filching behavior especially high-tech electricity filching behavior comprehensively, the problem that cannot accurately define the type of stealing event, therefore needs novel for anti-electricity-theft inspection main frame.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of for anti-electricity-theft inspection main frame, it is by arranging the front CT of table, magnetic field detection unit and high-frequency detection unit, various stealing events especially high-tech electricity filching behavior are monitored, and the type of stealing event even can be defined position, can improve accuracy, the success ratio of anti-electricity-theft inspection.
The technical solution of the utility model is: provide a kind of for anti-electricity-theft inspection main frame, comprise the intelligent electric meter being arranged on monitored circuit; It is characterized in that: CT before a table is set before intelligent electric meter end of incoming cables; A wireless electric current probe unit is set on monitored circuit; Described is made up of wireless electric current probe unit, Zigbee module, the front Current Transmit of table, prime processing unit, magnetic field detection unit, high-frequency detection unit, CPU, GPRS module and intelligent electric meter for anti-electricity-theft inspection main frame; Wherein, described wireless electric current probe unit and the wireless connections of Zigbee module, described Zigbee module is connected by serial port with CPU; Before described table, CT is connected with prime processing unit, and described prime processing unit is connected with the I/O interface of CPU after A/D conversion, or the corresponding connection of A/D data-interface direct and CPU; Described magnetic field detection unit and the I/O interface of high-frequency detection unit and CPU are connected respectively; Described CPU is connected respectively by serial port and GPRS module and intelligent electric meter.
Concrete, described CPU is connected with the data-interface of intelligent electric meter by serial port.
Wireless electric current probe unit described in it is current transformer testing circuit; Described current transformer is Roche air core coil.
Prime processing unit described in it comprises amplifying circuit, filtering circuit or amplitude limiter circuit.
Magnetic field detection unit described in it is tongue tube sensor circuit.
High-frequency detection unit described in it comprises high frequency receiving antenna and signal processing circuit; Described signal processing circuit comprises amplification, shaping or filtering circuit.
CPU described in it is single-chip microcomputer STM32F103 and the peripheral circuit thereof of ST company.
Compared with the prior art, the utility model has the advantages that:
By the front CT of table, magnetic field detection unit and high-frequency detection unit are set, can monitor various stealing events especially high-tech stealing, and the type of stealing event even can be defined position, more comprehensively, more accurately stealing is positioned, significant to improving accuracy, the success ratio of anti-electricity-theft inspection.
Brief description of the drawings
Fig. 1 is the formation schematic diagram of the utility model system module circuit.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further.
In Fig. 1, it is a kind of for anti-electricity-theft inspection main frame that the technical solution of the utility model provides, and comprises the intelligent electric meter being arranged on monitored circuit; It arranges CT before a table before intelligent electric meter end of incoming cables; A wireless electric current probe unit is set on monitored circuit; Described inspection main frame is made up of wireless electric current probe unit, Zigbee module, the front Current Transmit of table, prime processing unit, magnetic field detection unit, high-frequency detection unit, CPU, GPRS module and intelligent electric meter; Wherein, wireless electric current probe unit and the wireless connections of Zigbee module, Zigbee module is connected by serial port with CPU; Before table, CT is connected with prime processing unit, and prime processing unit is connected with the I/O interface of CPU after A/D conversion, or the corresponding connection of A/D data-interface direct and CPU; The I/O interface of magnetic field detection unit and high-frequency detection unit and CPU is connected respectively; CPU is connected respectively by serial port and GPRS module and intelligent electric meter.
Concrete, its CPU is connected with the data-interface of intelligent electric meter by serial port.
It is wireless, and electric current probe unit is current transformer testing circuit; Current transformer is Roche air core coil.
Its prime processing unit comprises amplifying circuit, filtering circuit or amplitude limiter circuit.
Its magnetic field detection unit is tongue tube sensor circuit; When tongue tube sense in intelligent electric meter surrounding environment there is the magnetic field intensity that exceedes its setting value after closed connection, the detection signal of output " having unconventional high-intensity magnetic field " is to CPU.
Its high-frequency detection unit comprises high frequency receiving antenna and signal processing circuit; When high frequency receiving antenna receives after high-frequency signal, through signal processing circuit amplification, shaping or filtering, compare with setting threshold values; In the time there is the high-frequency signal that exceedes its setting threshold values in intelligent electric meter surrounding environment, the detection signal of high-frequency detection unit output " having unconventional strong high frequency interference " is to CPU.
CPU described in it is single-chip microcomputer STM32F103 and the peripheral circuit thereof of ST company.
In the technical program, check that by magnetic field detection unit and high-frequency detection unit strong magnetic detects input and high-frequency detection input state for anti-electricity-theft inspection main frame, in CPU, directly whether differentiation there are this two kinds of stealings, and definite stealing type, CPU is by GPRS module output alarm signal simultaneously.
In the technical program, CPU receives the measurement data of wireless electric current probe unit by Zigbee module, thereby obtain the inlet wire current data of monitored circuit, the collection electric current of electric current and intelligent electric energy meter before taking-up table in CT and intelligent electric energy meter from showing, finds out electric current stealing event and the concrete link of generation by comparison; By read voltage data from intelligent electric energy meter, find out the voltage stealing event of generation; By magnetic field detection and high-frequency detection, detect the strong magnetic of appearance and the situation of high frequency interference intelligent electric energy meter; Judge the reset, the deadlock that whether have caused intelligent electric energy meter according to the energy data situation reading from intelligent electric energy meter; Once find stealing event, CPU is in time uploaded to Surveillance center by GPRS module by result by the stealing event of judging by serial port.
In the technical program, measure the input current before intelligent electric energy meter for anti-electricity-theft inspection main frame by the front CT of table, to prevent that user from shunting stealing; Its CPU compares the current value of table pre-test after prime processing and AD conversion with the current value of intelligent electric energy meter actual metered, guarantee that the electric current of intelligent electric energy meter metering is the actual use of user electric current.
In the technical program, receive the data of wireless exploration unit collection high pressure three-phase line for anti-electricity-theft inspection host computer using wireless receiving module, before utilizing table, CT gathers the data of the front low voltage three-phase of intelligent kilowatt-hour meter table simultaneously, and result and the current continuous data of intelligent electric energy meter are compared and stored in CPU; The current transformation on high-tension line is become the power on primary side/hi-line by its CPU, then with secondary side/intelligent electric energy meter before the power of measurement compare, if difference is in allowed limits, think that user does not have stealing; Go beyond the scope if super, think that user exists stealing; The state of its CPU while Real-Time Monitoring voltage circuit and current return, and read the parameter of intelligent electric energy meter by RS485 serial communication interface, measurement parameter and the intelligent electric energy meter measuring parameter of CT before table are contrasted in real time, if there is stealing, analyze and determine concrete mode and the stealing position of stealing by CPU.
During the utility model system forms, the function of its each modular circuit is as follows:
CPU is the core of whole test macro, and it adopts the High Performance SCM STM32F103 of ST company, and the detection, judgement and the warning that complete all stealing events are uploaded.
Adopt Zigbee wireless communication module to communicate by letter with the wireless electric current probe unit of inlet wire side, obtain high pressure inlet wire current data.
Before table, CT is linked into by prime processing in the AD of CPU, for gathering, calculating.
Carry out magnetic field detection by tongue tube, once magnetic field intensity reaches setting value, the junction closure of tongue tube, CPU can monitor this signal.
By high frequency receiving antenna and signal processing, the high frequency interference intensity that judgement occurs, produces alerting signal after exceeding standard.
CPU reads the data message of intelligent electric meter by serial port, comprise the data such as electric current, voltage, electric energy.
Expanding GPRS module by serial port realizes the wireless of Monitoring Data and uploads.
By the serial port maintenance function such as realize that device parameter arranges.
Because wireless electric current probe unit, Zigbee module, GPRS module, current transformer testing circuit, tongue tube sensor circuit, high frequency receiving antenna, amplification, shaping or filtering treatment circuit and CPU single chip circuit in technique scheme are prior art, the each modular circuit commercially available prod of You Duojia production firm is available, therefore its physical circuit annexation and line construction are no longer narrated at this, those skilled in the art can be with reference to the product manual of each production firm, obtains the implementing circuit of corresponding standard and concrete application technology scheme.
Because the utility model is by arranging the front CT of table, magnetic field detection unit and high-frequency detection unit, realize the various stealing events especially monitoring of high-tech electricity filching behavior, and the type of stealing event even can be defined position, can improve accuracy, the success ratio of anti-electricity-theft inspection.
The utility model can be widely used in the Design and manufacture field of anti-electricity-theft checking device.
Claims (7)
1. for an anti-electricity-theft inspection main frame, comprise the intelligent electric meter being arranged on monitored circuit; It is characterized in that:
CT before a table is set before intelligent electric meter end of incoming cables;
A wireless electric current probe unit is set on monitored circuit;
Described is made up of wireless electric current probe unit, Zigbee module, the front Current Transmit of table, prime processing unit, magnetic field detection unit, high-frequency detection unit, CPU, GPRS module and intelligent electric meter for anti-electricity-theft inspection main frame;
Wherein, described wireless electric current probe unit and the wireless connections of Zigbee module, described Zigbee module is connected by serial port with CPU;
Before described table, CT is connected with prime processing unit, and described prime processing unit is connected with the I/O interface of CPU after A/D conversion, or the corresponding connection of A/D data-interface direct and CPU;
Described magnetic field detection unit and the I/O interface of high-frequency detection unit and CPU are connected respectively;
Described CPU is connected respectively by serial port and GPRS module and intelligent electric meter.
According to claimed in claim 1 for anti-electricity-theft inspection main frame, it is characterized in that described CPU is connected with the data-interface of intelligent electric meter by serial port.
According to claimed in claim 1 for anti-electricity-theft inspection main frame, it is characterized in that described wireless electric current probe unit is current transformer testing circuit, described current transformer is Roche air core coil.
According to claimed in claim 1 for anti-electricity-theft inspection main frame, it is characterized in that described prime processing unit comprises amplifying circuit, filtering circuit or amplitude limiter circuit.
According to claimed in claim 1 for anti-electricity-theft inspection main frame, it is characterized in that described magnetic field detection unit is tongue tube sensor circuit.
According to claimed in claim 1 for anti-electricity-theft inspection main frame, it is characterized in that described high-frequency detection unit comprises high frequency receiving antenna and signal processing circuit, described signal processing circuit comprises amplification, shaping or filtering circuit.
According to claimed in claim 1 for anti-electricity-theft inspection main frame, it is characterized in that described CPU is single-chip microcomputer STM32F103 and the peripheral circuit thereof of ST company.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420220082.6U CN203870136U (en) | 2014-04-30 | 2014-04-30 | Inspecting host for electricity larceny prevention |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420220082.6U CN203870136U (en) | 2014-04-30 | 2014-04-30 | Inspecting host for electricity larceny prevention |
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| Publication Number | Publication Date |
|---|---|
| CN203870136U true CN203870136U (en) | 2014-10-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420220082.6U Expired - Lifetime CN203870136U (en) | 2014-04-30 | 2014-04-30 | Inspecting host for electricity larceny prevention |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104851342A (en) * | 2015-05-19 | 2015-08-19 | 国家电网公司 | Electricity stealing prevention device aiming contact electricity stealing and noncontact electricity stealing |
-
2014
- 2014-04-30 CN CN201420220082.6U patent/CN203870136U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104851342A (en) * | 2015-05-19 | 2015-08-19 | 国家电网公司 | Electricity stealing prevention device aiming contact electricity stealing and noncontact electricity stealing |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141008 |