CN203444003U - Electricity stealing prevention management system applied to power load terminal - Google Patents
Electricity stealing prevention management system applied to power load terminal Download PDFInfo
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- CN203444003U CN203444003U CN201320582603.8U CN201320582603U CN203444003U CN 203444003 U CN203444003 U CN 203444003U CN 201320582603 U CN201320582603 U CN 201320582603U CN 203444003 U CN203444003 U CN 203444003U
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- load terminal
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Abstract
Disclosed in the utility model is an electricity stealing prevention management system applied to a power load terminal. The system consists of a signal transmitter, a high-frequency oscillating circuit, a signal processing circuit, an alternating-current sampling module, a control module, a wireless communication module, an alarm unit and a monitoring center. The high-frequency oscillating circuit sends a sine-wave oscillating signal to the signal transmitter; the signal transmitter transmits an impedance changing signal of a current transformer to the signal processing circuit; the signal processing circuit carries out filtering and amplitude conversion processing on an inputted detection value and transmits the processed signal to the control module; the alternating-current sampling module collects a current value of a current transformer secondary side and transmits the current value to the control module; the control module carries out processing on the two transmitted numerical values; and the wireless communication module transmits the values to the monitoring center; and the alarm unit is connected with the control module. With the system, normal power consumption management of a power load terminal can be realized beneficially; the electricity stealing phenomenon can be effectively prevented; and there is no need to invest lots of funds for the system additionally, thereby saving the cost.
Description
Technical field
The utility model relates to field of electric power load management, relates in particular to a kind of anti-electricity-theft management system that is applied to power load terminal.
Background technology
At present, electricity load management terminal miniaturization gradually, multifunction, the anti-electricity-theft supervision category of also having included office terminal in.Stealing electricity method is varied, comprises voltage method stealing, current method stealing, the stealing of misphase method, expands poor method stealing, and wherein current method stealing is the main stealing method for terminal ac sampling device.For the electricity filching behavior of power load terminal, the management work that has had a strong impact on the normal operation ，Dui power monitoring department of electric system brings huge interference.
Summary of the invention
The purpose of this utility model is exactly in order to address the above problem; a kind of anti-electricity-theft management system that is applied to power load terminal is proposed; this system, for the current method stealing of current transformer, has been protected power load terminal effectively, guarantees the Administrative Security of normal electricity consumption.
To achieve these goals, the utility model adopts following technical scheme:
A kind of anti-electricity-theft management system that is applied to power load terminal, comprise signal transmitting device, high-frequency oscillating circuits, signal processing circuit, AC sampling module, control module, wireless communication module, alarm unit and Surveillance center, wherein: signal transmitting device is arranged in the current transformer of power load terminal, high-frequency oscillating circuits sends sine-wave oscillation signal to signal transmitting device, signal transmitting device sends the impedance variation of current transformer to signal processing circuit, the probe value of input is carried out to filtering to signal processing circuit and amplitude transformation is processed, send the signal after processing to control module, AC sampling module gathers the current value of Current Transformer Secondary side, be transferred to control module, control module is by processing transmitting two numerical value that come, by wireless communication module, be transferred to Surveillance center, alarm unit link control module.
The core controller of described control module is AT91SAM7S256, and controller has 10,8 tunnel A/D sampling channel.
The sample frequency of described AC sampling module is 300KSPS.
The oscillator signal of described high-frequency oscillating circuits is the sine wave signal of 50KHZ.
Described signal transmitting device has unique ID numbering, is different from other signal transmitting devices.
The beneficial effects of the utility model are: contribute to the normal management of power use of power load terminal, effectively prevent from stealing electricity, stealing electricity phenomenon, system architecture is simple, volume is little, lightweight, and the convenient terminal inner that embeds, without dropping in addition substantial contribution, cost-saving.
Accompanying drawing explanation
Fig. 1 is composition schematic diagram of the present utility model.
Wherein, 1, signal transmitting device; 2, AC sampling module; 3, high-frequency oscillating circuits; 4, signal processing circuit; 5, control module; 6, current transformer; 7, Current Transformer Secondary side; 8, alarm unit; 9, wireless communication module; 10, Surveillance center.
Embodiment:
Below in conjunction with accompanying drawing and embodiment, the utility model is described in further detail.
As shown in Figure 1, a kind of anti-electricity-theft management system that is applied to power load terminal, comprise signal transmitting device 1, high-frequency oscillating circuits 3, signal processing circuit 4, AC sampling module 2 and control module 5, wherein: signal transmitting device 1 is arranged in the current transformer 6 of power load terminal, high-frequency oscillating circuits 3 sends sine-wave oscillation signal to signal transmitting device 1, signal transmitting device 1 sends the impedance variation of current transformer 6 to signal processing circuit 4, the probe value of 4 pairs of inputs of signal processing circuit carries out filtering and amplitude transformation is processed, send the signal after processing to control module 5, AC sampling module 2 gathers the current value of Current Transformer Secondary side 7, be transferred to control module 5, control module 5 is by processing transmitting two numerical value that come, by wireless communication module 9, be transferred to Surveillance center 10, alarm unit 8 link control modules 5.
The core controller of control module 5. adopt 32 these processors of high-performance arm processor AT91SAM7S256. of Atmel company based on ARM7TDMI kernel, have abundant peripheral hardware resource and powerful processing power, 8 10, tunnel A/D sampling channels.
The sample frequency of AC sampling module 2 is 300KSPS.
The oscillator signal of high-frequency oscillating circuits 3 is the sine wave signal of 50KHZ.
1, isolation strong and weak signals: under normal circumstances, Current Transformer Secondary side 1 current return will pass through the power current signal of 5-7A, and high-frequency oscillating circuits 3 and signal processing circuit 4 are all low-power device composition, and signal is all more weak, follow, need signal transmitting device 1 to isolate strong and weak signals.
2, the impedance variation in Current Transformer Secondary side 7 loops is reflected to signal processing circuit 4; Signal transmitting device 1 can be judged concrete stealing mode from impedance variation, be current transformer 6 once/secondary short circuit, the electricity filching means of still once/second open circuit.
If generation stealing electricity phenomenon, the data that the signal that signal transmitting device 1 detects and AC sampling module 2 gather just have large discrepancy, and now, control module 5 judgements have people's stealing, and alarm unit 8 starts, and starts to report to the police.Control module 5 is crossed wireless communication module 9 by stealing information exchange and is transferred to 10， Surveillance center of Surveillance center 10 recorded informations, and sends staff to check.
Although above-mentioned, by reference to the accompanying drawings embodiment of the present utility model is described; but the not restriction to the utility model protection domain; one of ordinary skill in the art should be understood that; on the basis of the technical solution of the utility model, those skilled in the art do not need to pay various modifications that creative work can make or distortion still in protection domain of the present utility model.
Claims (5)
1. an anti-electricity-theft management system that is applied to power load terminal, it is characterized in that: comprise signal transmitting device, high-frequency oscillating circuits, signal processing circuit, AC sampling module and control module, wherein: signal transmitting device is arranged in the current transformer of power load terminal, high-frequency oscillating circuits sends sine-wave oscillation signal to signal transmitting device, signal transmitting device sends the impedance variation of current transformer to signal processing circuit, the probe value of input is carried out to filtering to signal processing circuit and amplitude transformation is processed, send the signal after processing to control module, AC sampling module gathers the current value of Current Transformer Secondary side, be transferred to control module, control module is by processing transmitting two numerical value that come, by wireless communication module, be transferred to Surveillance center, alarm unit link control module.
2. a kind of anti-electricity-theft management system that is applied to power load terminal as claimed in claim 1, is characterized in that: the core controller of described control module is AT91SAM7S256, and controller has 10,8 tunnel A/D sampling channel.
3. a kind of anti-electricity-theft management system that is applied to power load terminal as claimed in claim 1, is characterized in that: the sample frequency of described AC sampling module is 300KSPS.
4. a kind of anti-electricity-theft management system that is applied to power load terminal as claimed in claim 1, is characterized in that: the sine wave signal that the oscillator signal of described high-frequency oscillating circuits is 50KHZ.
5. a kind of anti-electricity-theft management system that is applied to power load terminal as claimed in claim 1, is characterized in that: described signal transmitting device has unique ID numbering, is different from other signal transmitting devices.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320582603.8U CN203444003U (en) | 2013-09-18 | 2013-09-18 | Electricity stealing prevention management system applied to power load terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320582603.8U CN203444003U (en) | 2013-09-18 | 2013-09-18 | Electricity stealing prevention management system applied to power load terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203444003U true CN203444003U (en) | 2014-02-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320582603.8U Expired - Fee Related CN203444003U (en) | 2013-09-18 | 2013-09-18 | Electricity stealing prevention management system applied to power load terminal |
Country Status (1)
| Country | Link |
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| CN (1) | CN203444003U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106053901A (en) * | 2016-07-14 | 2016-10-26 | 河南丰源电力科技有限公司 | Integrated electric energy metering acquisition control instrument |
| CN104297620B (en) * | 2014-10-20 | 2017-08-25 | 国网四川省电力公司电力科学研究院 | A kind of break detection circuit for electric power special transformer acquisition terminal |
-
2013
- 2013-09-18 CN CN201320582603.8U patent/CN203444003U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104297620B (en) * | 2014-10-20 | 2017-08-25 | 国网四川省电力公司电力科学研究院 | A kind of break detection circuit for electric power special transformer acquisition terminal |
| CN106053901A (en) * | 2016-07-14 | 2016-10-26 | 河南丰源电力科技有限公司 | Integrated electric energy metering acquisition control instrument |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140219 Termination date: 20140918 |
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| EXPY | Termination of patent right or utility model |