CN103439552A - Chip capable of recognizing high-frequency and strong-magnetism electricity stealing behavior - Google Patents
Chip capable of recognizing high-frequency and strong-magnetism electricity stealing behavior Download PDFInfo
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- CN103439552A CN103439552A CN2013103615836A CN201310361583A CN103439552A CN 103439552 A CN103439552 A CN 103439552A CN 2013103615836 A CN2013103615836 A CN 2013103615836A CN 201310361583 A CN201310361583 A CN 201310361583A CN 103439552 A CN103439552 A CN 103439552A
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Abstract
The invention discloses a chip capable of recognizing a high-frequency and strong-magnetism electricity stealing behavior. The chip comprises a controller, a power-down detector, an oscillator circuit, a reset circuit, a watchdog circuit, a pulse counter, a serial interface, a clock controller, a data storage unit, a high-frequency signal detecting module, a first filter, a strong-magnetism signal detecting module, a second filter and an AD converter. The controller is respectively connected with the power-down detector, the oscillator circuit, the reset circuit and the watchdog circuit and is connected with the pulse counter, the serial interface, the clock controller, the data storage unit and the AD converter through internal buses. According to the chip capable of recognizing the high-frequency and strong-magnetism electricity stealing behavior, an illegal criminal activity of an electricity thief can be recognized in time, an alarm can be given in time, an alarming signal can be sent in time so that investigation and treatment can be conducted by power grid staff, and therefore the power grid safety and the social safety are guaranteed.
Description
Technical field
The invention belongs to electric power anti-theft electricity technology field, particularly relate to a kind of chip that can identify high frequency and strong magnetic stealing.
Background technology
In recent years, the stealing criminal offence, except having disguise, mobility, the essential characteristic such as sudden, also presents specialization, high-technicalization, the trend of fleeing transprovincially, investigates and prosecutes difficulty increasing.From the case of investigating and prosecuting, part stealing family takes that the special messenger is on duty, installing monitoring remote control equipment, obstruct the power utility check personnel and enter scene, destroy the means such as the on-the-spot evidence of stealing rapidly, take precautions against, stop the inspection of opposing electricity-stealing, even besiege, abuse, hit the personnel of opposing electricity-stealing, so the problems such as investigation difficulty, evidence obtaining is difficult, processing is difficult of opposing electricity-stealing are comparatively outstanding.In a word, mainly there is at present following several respects problem:
When one, the power utility check personnel arrive the inspection of suspicion user measuring apparatus, the lawless person removes the equipment such as the stealing such as strong magnetic, high frequency in advance, is difficult to find.
Even phenomenons such as two discovery table casees are destroyed, owing to lacking strong evidence, the lawless person does not admit the stealing fact yet, causes and processes difficult present situation.
Three, the stealing modes such as strong magnetic, high frequency are difficult to find due to the power information acquisition system, at present the white space in monitoring.
In addition, some enterprises take the stealing mode to reduce operating cost, illegitimately make exorbitant profits, and have also destroyed market fair competition principle simultaneously, have damaged lawful operation person's of the same trade or business interests; Often cause the serious problems such as power supply and power use facilities damage, large-area power-cuts and personal injury, threaten power grid security and social safety, make a very bad impression, very harmful.How efficiently and effectively is carried out the line loss management work of power supply enterprise, further improves the management level of power supply enterprise, is the important topic of pendulum in face of power supply enterprise.
Strong magnetic stealing does not need to open the table case, destroys seal, mainly by around the table tool, installing strong magnet additional, makes to show the inner sampling of tool CT magnetic circuit saturated, affects the ammeter sample rate current, causes few quantity calculation.
In addition, intelligent electric meter is 80MHz-100MHz about the frequency range of the design standards " GB/T17626.3 experiment and measuring technique radio frequency electromagnetic field immunity experiment " of anti-Radio frequency interference (RFI), and the highest laboratory strength is 10V/m.Present intelligent electric meter is all produced according to this standard design.Yet " high-power signal generator " signal intensity, up to 680V/m, is 68 times of national standard.Under strongly disturbing condition, computation chip can not normally measure.
Current intelligent electric meter has all adopted the intelligent metering chip, no matter is phase three-wire three, and the intelligent electric meter of three-phase and four-line, or single-phase resident's step price ammeter all are faced with same disturbed problem.
Summary of the invention
In order to address the above problem, the object of the present invention is to provide a kind of chip that can identify high frequency and strong magnetic stealing.
In order to achieve the above object, the chip that can identify high frequency and strong magnetic stealing provided by the invention comprises: controller, detection of power loss device, pierce circuit, reset circuit, watchdog circuit, impulse meter, serial line interface, clock controller, data-carrier store, high-frequency signal detection module, the first wave filter, strong magnetic signal detection module, the second wave filter and AD conversion; Wherein: the central processor unit that controller is chip, it is connected with detection of power loss device, pierce circuit, reset circuit and watchdog circuit respectively, and is connected with impulse meter, serial line interface, clock controller, data-carrier store and AD photograph by internal bus;
The detection of power loss device is low-voltage detection circuit, and for generation of the low-voltage alerting signal, it is connected with the F0 pin of chip;
Pierce circuit is sheet internal oscillator circuit, is used to the controller clocking, and it is connected with the XTAL pin of chip;
The electrify restoration circuit that reset circuit is chip, be used to controller that reseting pulse signal is provided, and it is connected with the REST pin of chip;
The labormonitor circuit that watchdog circuit is chip, be used to controller that the watchdog reset function is provided, and it is connected with reset circuit;
Impulse meter is the pulse timing counter circuit, and it is connected with the INT0 pin of chip;
Serial line interface is serial communication interface circuit, for realizing chip, with the serial communication of external device (ED), is connected, and it is connected with the TDX pin with the RDX pin of chip;
Clock controller is the clock controller interface circuit, for realizing chip, with the serial communication of external clock chip, is connected, and it is connected with SDL pin, SCL pin and the PB0 pin of chip;
Data-carrier store comprises program storage and data-carrier store, and wherein program storage is for the control program code of storage chip, and data-carrier store is for storing data information;
Strong magnetic signal detection module is the high-intensity magnetic field signal deteching circuit, and for detection of the frequency values of input signal, it is connected with the INT1 pin of chip, and strong magnetic signal detection module sends through the first wave filter and AD conversion the strong magnetic signal collected to controller;
The first wave filter is the simulating signal filtering circuit, and its input end is connected with the high-frequency signal detection module, for high-frequency signal detection module output terminal simulating signal is carried out to shaping filter;
Strong magnetic signal detection module is the high-intensity magnetic field signal deteching circuit, and for detection of the frequency values of input signal, it is connected with the INT2 pin of chip, and strong magnetic signal detection module sends through the second wave filter and AD conversion the strong magnetic signal collected to controller;
The second wave filter is the simulating signal filtering circuit, and its input end is connected with strong magnetic signal detection module, for strong magnetic signal detection module output terminal simulating signal is carried out to shaping filter;
AD is converted to analog-digital converter circuit, it has two Gather and input ends, the first Gather and input end is connected with the output terminal of the first wave filter, becomes digital signal for the analog signal conversion by the first filter output output, and passes to controller by internal bus; The second Gather and input end is connected with the output terminal of the second wave filter, becomes digital signal for the analog signal conversion by the second filter output output, and passes to controller by internal bus.
Described chip I NT1 pin is that high-frequency signal detects input end, and it is connected with monitored supply line.
Described chip I NT2 pin is high-intensity magnetic field input input end, and it is connected with the high-intensity magnetic field sensor on being arranged on the table tool.
Described internal bus comprises: data bus, address bus and control bus.
Described high-frequency signal detection module consists of comparator circuit and frequency counter.
Described strong magnetic signal detection module consists of comparator circuit and frequency counter.
The pin of described chip comprises: the 1st pin RDX, the 2nd pin TDX, the 3rd pin INT0, the 4th pin XTAL, the 5th pin F0, the 6th pin SDL, the 7th pin SCL, the 8th pin PB0, the 9th pin INT1, the 10th pin INT2, the 11st pin REST, the 12nd pin VCC and the 13rd pin GND.
The chip that can identify high frequency and strong magnetic stealing provided by the invention can be found the criminal offence of stealing molecule in time, and can reach alarm and send alerting signal, to remind the network operation personnel to investigate and prosecute in time, thereby can guarantee power grid security and social safety.
The accompanying drawing explanation
Fig. 1 is the inner structure schematic diagram that can identify the chip of high frequency and strong magnetic stealing provided by the invention.
Fig. 2 is the pin schematic diagram that can identify the chip of high frequency and strong magnetic stealing provided by the invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, the chip that can identify high frequency and strong magnetic stealing provided by the invention is elaborated.
As shown in Figure 1, the chip that can identify high frequency and strong magnetic stealing provided by the invention comprises: controller 1, detection of power loss device 2, pierce circuit 3, reset circuit 4, watchdog circuit 5, impulse meter 6, serial line interface 7, clock controller 8, data-carrier store 9, high-frequency signal detection module 10, the first wave filter 11, strong magnetic signal detection module 12, the second wave filter 13 and AD conversion 14; Wherein: central processing unit (CPU) unit that controller 1 is chip, its control core that is whole chip, it is connected with detection of power loss device 2, pierce circuit 3, reset circuit 4 and watchdog circuit 5 respectively, and is connected with impulse meter 6, serial line interface 7, clock controller 8, data-carrier store 9 and AD conversion 14 by internal bus;
Detection of power loss device 2 is low-voltage detection circuit, and for generation of the low-voltage alerting signal, it is connected with the F0 pin of chip;
The electrify restoration circuit that reset circuit 4 is chip, be used to controller 1 that reseting pulse signal is provided, and it is connected with the REST pin of chip;
The labormonitor circuit that watchdog circuit 5 is chip, be used to controller 1 that the watchdog reset function is provided, and it is connected with reset circuit 4;
Data-carrier store 9 comprises program storage and data-carrier store, and wherein program storage is for the control program code of storage chip, and data-carrier store is for storing data information;
Strong magnetic signal detection module 10 is the high-intensity magnetic field signal deteching circuit, frequency values for detection of input signal, it is connected with the INT1 pin of chip, and strong magnetic signal detection module 10 sends through the first wave filter 11 and AD conversion 14 the strong magnetic signal collected to controller 1;
The first wave filter 11 is the simulating signal filtering circuit, and its input end is connected with high-frequency signal detection module 10, for high-frequency signal detection module 10 output terminal simulating signals are carried out to shaping filter;
Strong magnetic signal detection module 12 is the high-intensity magnetic field signal deteching circuit, frequency values for detection of input signal, it is connected with the INT2 pin of chip, and strong magnetic signal detection module 12 sends through the second wave filter 13 and AD conversion 14 the strong magnetic signal collected to controller 1;
The second wave filter 13 is the simulating signal filtering circuit, and its input end is connected with strong magnetic signal detection module 10, for strong magnetic signal detection module 10 output terminal simulating signals are carried out to shaping filter;
AD changes 14 into analog-digital converter circuit, it has two Gather and input ends, the first Gather and input end is connected with the output terminal of the first wave filter 11, becomes digital signal for the analog signal conversion by the first wave filter 11 output terminal outputs, and passes to controller 1 by internal bus; The second Gather and input end is connected with the output terminal of the second wave filter 13, becomes digital signal for the analog signal conversion by the second wave filter 13 output terminal outputs, and passes to controller 1 by internal bus.
Described chip I NT1 pin is that high-frequency signal detects input end, and it is connected with monitored supply line.
Described chip I NT2 pin is high-intensity magnetic field input input end, and it is connected with the high-intensity magnetic field sensor on being arranged on the table tool.
Described internal bus comprises: data bus, address bus and control bus.
Described high-frequency signal detection module 10 consists of comparator circuit and frequency counter, for measuring the high-frequency signal frequency of input signal; High-frequency signal detection module 10 starts one-time detection every 2ms, and sends by the first wave filter 11 and AD conversion 14 result detected to controller 1.
Described strong magnetic signal detection module 12 consists of comparator circuit and frequency counter, for measuring the strong magnetic signal frequency of input signal; Strong magnetic signal detection module 12 starts one-time detection every 2ms, and sends by the second wave filter 13 and AD conversion 14 result detected to controller 1.
As shown in Figure 2, the pin that can identify the chip of high frequency and strong magnetic stealing provided by the invention comprises: the 1st pin RDX, the 2nd pin TDX, the 3rd pin INT0, the 4th pin XTAL, the 5th pin F0, the 6th pin SDL, the 7th pin SCL, the 8th pin PB0, the 9th pin INT1, the 10th pin INT2, the 11st pin REST, the 12nd pin VCC and the 13rd pin GND.
Once the stealing molecule is installed " high-power signal generator " in supply line, the frequency input signal value that high-frequency signal detection module 10 detects will change, it carries out the high-frequency signal that detects after shaping filter and AD change 14 analog to digital conversion to send controller 1 to through the first wave filter 11 immediately, then under the control of controller 1, utilize detection of power loss device 2 to produce the low-voltage alerting signal, remind thus the network operation personnel to investigate and prosecute in time the illegal electricity filching behavior of stealing molecule.
In addition, if the stealing molecule adds and loads onto strong magnet around the table tool, near the magnetic field intensity table tool will change, at this moment the high-intensity magnetic field sensor be arranged on the table tool can detect immediately, and send the signal of collection to strong magnetic signal detection module 12, strong magnetic signal detection module 12 carries out the strong magnetic signal that detects after shaping filter and AD change 14 analog to digital conversion to send controller 1 to through the second wave filter 12 again, then under the control of controller 1, utilize detection of power loss device 2 to produce the low-voltage alerting signal, remind thus the network operation personnel to investigate and prosecute in time the illegal electricity filching behavior of stealing molecule.
The technical characterstic of the chip that can identify high frequency and strong magnetic stealing provided by the invention is as follows:
1) automatic gain control: automatic signal tracking, automatically controlled gain, optimum sensitivity receives signal;
2) support serial communication;
3) integrated level is high, the miniature CPU of this chipset and modulating and demodulating signal function, can with the good combination of existing electronic electric energy meter, in conjunction with after volume little, cost performance is high;
4) data of electrical energy pulse are processed and data storage capacities;
5) communication speed is high: 1Kbps;
6)+5V voltage power supply;
The range of application that can identify the chip of high frequency and strong magnetic stealing provided by the invention:
1) low-voltage platform area line of electric force metering system;
2) the height district's line of electric force metering system of presenting a theatrical performance as the last item on a programme;
Through a large amount of research and tests, the chip that can identify high frequency and strong magnetic stealing provided by the invention can realize gathering rapidly and accurately high-frequency signal and strong magnetic signal.
Claims (7)
1. the chip that can identify high frequency and strong magnetic stealing, it is characterized in that: described chip comprises: controller (1), detection of power loss device (2), pierce circuit (3), reset circuit (4), watchdog circuit (5), impulse meter (6), serial line interface (7), clock controller (8), data-carrier store (9), high-frequency signal detection module (10), the first wave filter (11), strong magnetic signal detection module (12), the second wave filter (13) and AD change (14); Wherein: the central processor unit that controller (1) is chip, it is connected with detection of power loss device (2), pierce circuit (3), reset circuit (4) and watchdog circuit (5) respectively, and is connected with impulse meter (6), serial line interface (7), clock controller (8), data-carrier store (9) and AD conversion (14) by internal bus;
Detection of power loss device (2) is low-voltage detection circuit, and for generation of the low-voltage alerting signal, it is connected with the F0 pin of chip;
Pierce circuit (3) is sheet internal oscillator circuit, is used to controller (1) clocking, and it is connected with the XTAL pin of chip;
The electrify restoration circuit that reset circuit (4) is chip, be used to controller (1) that reseting pulse signal is provided, and it is connected with the REST pin of chip;
The labormonitor circuit that watchdog circuit (5) is chip, be used to controller (1) that the watchdog reset function is provided, and it is connected with reset circuit 4;
Impulse meter (6) is the pulse timing counter circuit, and it is connected with the INT0 pin of chip;
Serial line interface (7) is serial communication interface circuit, for realizing chip, with the serial communication of external device (ED), is connected, and it is connected with the TDX pin with the RDX pin of chip;
Clock controller (8) is the clock controller interface circuit, for realizing chip, with the serial communication of external clock chip, is connected, and it is connected with SDL pin, SCL pin and the PB0 pin of chip;
Data-carrier store (9) comprises program storage and data-carrier store, and wherein program storage is for the control program code of storage chip, and data-carrier store is for storing data information;
Strong magnetic signal detection module (10) is the high-intensity magnetic field signal deteching circuit, frequency values for detection of input signal, it is connected with the INT1 pin of chip, and strong magnetic signal detection module (10) sends through the first wave filter (11) and AD conversion (14) the strong magnetic signal collected to controller (1);
The first wave filter (11) is the simulating signal filtering circuit, and its input end is connected with high-frequency signal detection module (10), for high-frequency signal detection module (10) output terminal simulating signal is carried out to shaping filter;
Strong magnetic signal detection module (12) is the high-intensity magnetic field signal deteching circuit, frequency values for detection of input signal, it is connected with the INT2 pin of chip, and strong magnetic signal detection module (12) sends through the second wave filter (13) and AD conversion (14) the strong magnetic signal collected to controller (1);
The second wave filter (13) is the simulating signal filtering circuit, and its input end is connected with strong magnetic signal detection module (10), for strong magnetic signal detection module (10) output terminal simulating signal is carried out to shaping filter;
AD changes (14) into analog-digital converter circuit, it has two Gather and input ends, the first Gather and input end is connected with the output terminal of the first wave filter (11), become digital signal for the analog signal conversion by the output of the first wave filter (11) output terminal, and pass to controller (1) by internal bus; The second Gather and input end is connected with the output terminal of the second wave filter (13), becomes digital signal for the analog signal conversion by the output of the second wave filter (13) output terminal, and passes to controller (1) by internal bus.
2. chip according to claim 1 is characterized in that: described chip I NT1 pin is that high-frequency signal detects input end, and it is connected with monitored supply line.
3. chip according to claim 1, it is characterized in that: described chip I NT2 pin is high-intensity magnetic field input input end, it is connected with the high-intensity magnetic field sensor on being arranged on the table tool.
4. chip according to claim 1, it is characterized in that: described internal bus comprises: data bus, address bus and control bus.
5. chip according to claim 1, it is characterized in that: described high-frequency signal detection module (10) consists of comparator circuit and frequency counter.
6. chip according to claim 1, it is characterized in that: described strong magnetic signal detection module (12) consists of comparator circuit and frequency counter.
7. chip according to claim 1, it is characterized in that: the pin of described chip comprises: the 1st pin RDX, the 2nd pin TDX, the 3rd pin INT0, the 4th pin XTAL, the 5th pin F0, the 6th pin SDL, the 7th pin SCL, the 8th pin PB0, the 9th pin INT1, the 10th pin INT2, the 11st pin REST, the 12nd pin VCC and the 13rd pin GND.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013103615836A CN103439552A (en) | 2013-08-19 | 2013-08-19 | Chip capable of recognizing high-frequency and strong-magnetism electricity stealing behavior |
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| CN2013103615836A CN103439552A (en) | 2013-08-19 | 2013-08-19 | Chip capable of recognizing high-frequency and strong-magnetism electricity stealing behavior |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104916060A (en) * | 2015-04-30 | 2015-09-16 | 国家电网公司 | Alarm method for preventing power theft through strong magnetic field |
| CN108169529A (en) * | 2017-12-27 | 2018-06-15 | 囯网河北省电力有限公司电力科学研究院 | Anti- high frequency electricity filching device |
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| CN201075117Y (en) * | 2007-03-05 | 2008-06-18 | 哈尔滨智通科技有限公司 | Single phase electric energy meter capable of avoiding fraudulent use of electricity |
| CN101782407A (en) * | 2010-02-11 | 2010-07-21 | 合肥工业大学 | Digital vortex street/precession flowmeter powered by battery |
| CN202126719U (en) * | 2011-08-04 | 2012-01-25 | 张春来 | Electronic prepaying watt-hour meter |
| CN202583287U (en) * | 2012-04-18 | 2012-12-05 | 哈尔滨电业局 | Electricity stealing preventing alarm of electric meter box |
| CN202929078U (en) * | 2012-11-20 | 2013-05-08 | 北京新源绿网节能科技有限公司 | High-frequency signal monitoring device |
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- 2013-08-19 CN CN2013103615836A patent/CN103439552A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5017861A (en) * | 1988-11-24 | 1991-05-21 | Rohm Co., Ltd. | Meter driving apparatus |
| US6118284A (en) * | 1996-10-04 | 2000-09-12 | Ghoshal; Uttam S. | High speed magnetic flux sampling |
| CN201075117Y (en) * | 2007-03-05 | 2008-06-18 | 哈尔滨智通科技有限公司 | Single phase electric energy meter capable of avoiding fraudulent use of electricity |
| CN101782407A (en) * | 2010-02-11 | 2010-07-21 | 合肥工业大学 | Digital vortex street/precession flowmeter powered by battery |
| CN202126719U (en) * | 2011-08-04 | 2012-01-25 | 张春来 | Electronic prepaying watt-hour meter |
| CN202583287U (en) * | 2012-04-18 | 2012-12-05 | 哈尔滨电业局 | Electricity stealing preventing alarm of electric meter box |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104916060A (en) * | 2015-04-30 | 2015-09-16 | 国家电网公司 | Alarm method for preventing power theft through strong magnetic field |
| CN108169529A (en) * | 2017-12-27 | 2018-06-15 | 囯网河北省电力有限公司电力科学研究院 | Anti- high frequency electricity filching device |
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Application publication date: 20131211 |