CN206594214U - Transient electric field and electromagnetic field attack detecting circuit and its electric energy meter being made - Google Patents
Transient electric field and electromagnetic field attack detecting circuit and its electric energy meter being made Download PDFInfo
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- CN206594214U CN206594214U CN201621307999.5U CN201621307999U CN206594214U CN 206594214 U CN206594214 U CN 206594214U CN 201621307999 U CN201621307999 U CN 201621307999U CN 206594214 U CN206594214 U CN 206594214U
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Abstract
The utility model discloses a kind of transient electric field and electromagnetic field attack detecting circuit, including controller, electromagnetic field detection diode, transient electric field detection diode and sample circuit, and described transient electric field and all circuit devcie centralized arrangements of electromagnetic field attack detection module are on pcb board, and copper is covered below circuit devcie；Electromagnetic field detection diode and transient electric field detection diode are serially connected between positive source and ground；Detect that signal is drawn from the negative electrode of electromagnetic field detection diode, and pass through sample circuit output voltage signal to controller；The negative electrode of the electromagnetic field detection diode detects that the anode of diode links together with transient electric field.The utility model additionally provides the electric energy meter being made using the transient electric field and electromagnetic field attack detecting circuit.The utility model can detect that transient electric field is attacked with electromagnetic field, carry out signal to attack collection and attack information record and judgement, and can conveniently access all types of intelligent electric energy meters, easy to use, widely applicable.
Description
Technical field
The utility model belongs to measurement and control area, and in particular to a kind of transient electric field and electromagnetic field attack detecting circuit and its system
Into electric energy meter.
Background technology
With the development and the improvement of people's living standards of national economy technology, intelligent electric energy meter has been widely used for people
Production and life among, brought great convenience.
The main function of intelligent electric energy meter is that electric energy is measured and settled accounts.But, intelligent electric energy meter is to belong to electronics
Equipment, therefore it is easily influenceed by electromagnetic interference.Under strong electromagnetic attack context, intelligent electric energy meter may work shakiness
Fixed, while function of measuring can also be affected, using intelligent electric energy meter, this characteristic applies EMP attack N to criminal to it, with
Reach the purpose of stealing.Although intelligent electric energy meter needs to be required according to relevant criterion, test, can not also protect by strict EMC
Demonstrate,prove its stable operation under the conditions of unconventional EMP attack N.
Current electricity filching means high-technicalization increasingly, a large amount of specialty stealing equipment cause electric energy meter operation troubles, wherein electromagnetism
Electricity stealing is due to its concealment, without obvious stealing vestige, strong electromagnetic is attacked remove after, intelligent electric energy meter recovers normal operation, supplies
Electricity side can not obtain stealing situation, and inspection and delayed, related electric quantity compensating of collecting evidence also are supported without valid data.At present, pin
Electricity stealing to the anti-intensive magnetism attack of intelligent electric energy meter, is supported without correlation effective solution and equipment.
Utility model content
One of the purpose of this utility model, which is to provide one kind, can detect that transient electric field and electromagnetic field are attacked and can
Carry out signal to attack collection and attack information record and judgement and can conveniently access the transient electrical of all types of intelligent electric energy meters
Field and electromagnetic field attack detecting circuit.
The two of the purpose of this utility model are to provide a kind of application transient electric field and electromagnetic field attack detecting circuit
Carry out the intelligent electric energy meter of transient electric field and electromagnetic field attack detecting.
This transient electric field that the utility model is provided includes controller, electromagnetic field detection with electromagnetic field attack detecting circuit
Diode, transient electric field detection diode and sample circuit, and described transient electric field and the institute of electromagnetic field attack detecting circuit
There is circuit devcie centralized arrangement on pcb board, and want large area to cover copper below circuit devcie；Electromagnetic field detection diode and transition
Electric field detection diode is serially connected between positive source and ground, and the negative electrode and transient electric field of electromagnetic field detection diode detect two poles
The anode short circuit of pipe；Detect that signal is drawn from the negative electrode of electromagnetic field detection diode, and pass through sample circuit output voltage signal
To controller.
Described transient electric field also includes detection inductance, protection diode, integrating capacitor with electromagnetic field attack detecting circuit
And current-limiting resistance；Detection inductance is in parallel with integrating capacitor after being connected with protection diode；The positive pole of integrating capacitor passes through current limliting electricity
Resistance is connected to the negative electrode of electromagnetic field detection diode, and the negative electrode and transient electric field of electromagnetic field detection diode detect the sun of diode
It is extremely short to connect；Described detection inductance, protection diode, integrating capacitor and current-limiting resistance is used to exclude the transient electric field and electromagnetism
Situation of the field attack detecting electric circuit inspection to the waveform of pulse electromagnetic field.
Described transient electric field also includes anti-aliasing circuit with electromagnetic field attack detecting circuit, anti-aliasing to be electrically connected to wink
Between changed electric field and the output end and controller module of electromagnetic field attack detecting circuit, for preventing frequency to be in the letter of multiple proportion
Number time domain superposition.
Described anti-aliasing circuit includes first resistor, second resistance, the first filter capacitor, the second filter capacitor and output
Filter capacitor；First resistor and the first electric capacity are concatenated between the positive pole and ground of the output end of described detection signal；Detect signal
Output end negative pole and ground between concatenate second resistance and the second electric capacity；The positive pole of output filter capacitor is connected to first resistor
With the first electric capacity, negative pole is connected between second resistance and the second electric capacity.
The utility model additionally provides a kind of above-mentioned transient electric field of application and electromagnetic field attack detecting electric circuit inspection transient electrical
The electric energy meter that field is attacked with electromagnetic field.
This transient electric field that the utility model is provided and electromagnetic field attack detecting circuit, are used as by the copper that covers of circuit board
Sensor detects that transient electric field is attacked with electromagnetic field, and excludes the interference of pulse electromagnetic field by appropriate redundant circuit, because
This utility model circuit can detect the attack of transient electric field and electromagnetic field, and carry out signal to attack collection and attack information
Record and judgement, and the utility model circuit can conveniently access all types of intelligent electric energy meters；In addition, the utility model is carried
The transient electric field of confession and electromagnetic field attack detecting circuit, are used not only for intelligent electric energy meter, additionally it is possible to for other kinds type
Measuring instrument, such as electric energy meter, water meter, gas meter, flow meter, calorimeter etc., it can also be used to other any need carry out transient electric fields and
The electronic equipment of electromagnetic field detection, including electric energy management terminal, distribution terminal, electric energy quality monitoring equipment, grid automation are whole
End, acquisition terminal, concentrator, data acquisition unit, measuring instrument write by hand device etc..
Brief description of the drawings
Fig. 1 is the circuit theory diagrams of transient electric field of the present utility model and electromagnetic field attack detecting circuit.
Fig. 2 is that transient electric field of the present utility model is being detected when transient electric field is attacked with electromagnetic field attack detecting circuit
Typical waveform exports schematic diagram.
Fig. 3 is allusion quotation of the transient electric field of the present utility model with electromagnetic field attack detecting circuit when detecting electromagnetic field attack
Type waveform exports schematic diagram.
Embodiment
It is as shown in Figure 1 transient electric field of the present utility model and the circuit theory diagrams of electromagnetic field attack detecting circuit：Transition
Electric field includes detection inductance L1, protection diode D1, integrating capacitor C1, current-limiting resistance R1, electricity with electromagnetic field attack detecting circuit
Magnetic field detection diode D2, transient electric field detection diode D3 and sample circuit（R2 and R4）, and described transient electric field and electricity
All circuit devcie centralized arrangements of magnetic field attack detecting circuit want large area to cover copper on pcb board, and below circuit devcie, institute
It is the transient electric field and the detection part of electromagnetic field attack detecting circuit to state the lying copper region domain below circuit devcie, for coupling
The signal of transient electric field or electromagnetic field in space；Electromagnetic field detection diode and transient electric field detection diode are being serially connected in power supply just
Between pole and ground；The positive pole of integrating capacitor is connected to the anode of electromagnetic field detection diode by current-limiting resistance, while also passing through
Sample circuit output detection signal（VI+ and VI- is indicated in figure）；Negative electrode and the transient electric field detection two of electromagnetic field detection diode
The anode short circuit of pole pipe；In addition, transient electric field and the rear end of electromagnetic field attack detecting circuit are also associated with anti-aliasing circuit, resist mixed
It is folded to be electrically connected between transient electric field and the output end and controller module of electromagnetic field attack detecting circuit, for preventing frequency
It is superimposed in the signal of multiple proportion in time domain.Anti-aliasing circuit includes first resistor, second resistance, the first filter capacitor, second
Filter capacitor and output filter capacitor；First resistor and first are concatenated between the positive pole and ground of the output end of described detection signal
Electric capacity；Second resistance and the second electric capacity are concatenated between the negative pole and ground that detect the output end of signal；The positive pole of output filter capacitor
First resistor and the first electric capacity are connected to, negative pole is connected between second resistance and the second electric capacity.
Inductance L1, protection diode D1, integrating capacitor C1 are detected, for acquisition pulse magnetic field EMP attack N interference signal,
The attack interference effect has obvious characteristic in this circuitry processes, and sampled value is very big, and the purpose of the circuit is to exclude such electricity
The judgement of interference is attacked transient electric field and electro magnetic field electromagnetic in magnetic attack interference.Transient electric field detects diode D3 by transient electric field
After attack interference, the distribution of its internal charge changes, and its internal reversely potential barrier changes, the sampled circuit of the change（Figure
Middle sign R2 and R4）The change is exported to simulation output mouthful.The analog signal sampled data that transient electric field attack interference is produced
Sequence is in " spike behavior ", the wave character of " two ends distribution is less "（As shown in Figure 2）.
Electromagnetic field detection diode D2 is by after electromagnetic field attack interference, and the distribution of its internal charge changes, and it is internal anti-
Changed to potential barrier, the sampled circuit of the change（R2 and R4 is indicated in figure）The change is exported to simulation output mouthful.In addition
Being covered copper by PCB is influenceed, and electromagnetic field detection diode D2 leakage currents are increased, and the electric current flows through sample circuit and produces partial pressure, the portion
Component voltage is exported to simulation output mouthful.Electromagnetic field attack interference produce analog signal sample data sequence in " spike behavior ",
" two ends are distributed on a small quantity ", the wave character of " middle a large amount of distributions "（As shown in Figure 3）.
Claims (5)
1. a kind of transient electric field and electromagnetic field attack detecting circuit, it is characterised in that including controller, electromagnetic field detection diode,
Transient electric field detects diode and sample circuit, and described transient electric field and all circuit devices of electromagnetic field attack detecting circuit
Part centralized arrangement will cover copper on pcb board, and below circuit devcie；Electromagnetic field detection diode and transient electric field detection diode
It is serially connected between positive source and ground, negative electrode and the transient electric field of the electromagnetic field detection diode detect that the anode of diode is short
It is connected together；Detect that signal is drawn from the negative electrode of electromagnetic field detection diode, and pass through sample circuit output voltage signal to control
Device processed.
2. transient electric field according to claim 1 and electromagnetic field attack detecting circuit, it is characterised in that also including detection electricity
Sense, protection diode, integrating capacitor and current-limiting resistance；Detection inductance is in parallel with integrating capacitor after being connected with protection diode；Product
The positive pole of electric capacity is divided to be connected to the negative electrode of electromagnetic field detection diode by current-limiting resistance.
3. transient electric field according to claim 1 or 2 and electromagnetic field attack detecting circuit, it is characterised in that described transition
Electric field also includes anti-aliasing circuit with electromagnetic field attack detecting circuit, and the anti-aliasing transient electric field that is electrically connected to is attacked with electromagnetic field
Between the output end and controller that detect circuit, for preventing frequency to be superimposed in the signal of multiple proportion in time domain.
4. transient electric field according to claim 3 and electromagnetic field attack detecting circuit, it is characterised in that described is anti-aliasing
Circuit includes first resistor, second resistance, the first filter capacitor, the second filter capacitor and output filter capacitor；Described detection
First resistor and the first electric capacity are concatenated between the positive pole of the output end of signal and ground；Detect the negative pole and ground of the output end of signal
Between concatenation second resistance and the second electric capacity；The positive pole of output filter capacitor is connected to first resistor and the first electric capacity, negative pole connection
Between second resistance and the second electric capacity.
5. a kind of electric energy meter, it is characterised in that attack and examine including the transient electric field as described in one of claim 1 ~ 4 and electromagnetic field
Slowdown monitoring circuit, the transient electric field is used for the transient electric field and electricity for detecting that outer bound pair electric energy meter is initiated with electromagnetic field attack detecting circuit
Magnetic field is attacked.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621307999.5U CN206594214U (en) | 2016-12-01 | 2016-12-01 | Transient electric field and electromagnetic field attack detecting circuit and its electric energy meter being made |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621307999.5U CN206594214U (en) | 2016-12-01 | 2016-12-01 | Transient electric field and electromagnetic field attack detecting circuit and its electric energy meter being made |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206594214U true CN206594214U (en) | 2017-10-27 |
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ID=60131319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621307999.5U Active CN206594214U (en) | 2016-12-01 | 2016-12-01 | Transient electric field and electromagnetic field attack detecting circuit and its electric energy meter being made |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206594214U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109030896A (en) * | 2018-07-20 | 2018-12-18 | 国网湖南省电力有限公司 | A kind of impact load electric energy meter |
| CN116754884A (en) * | 2023-08-22 | 2023-09-15 | 成都利普芯微电子有限公司 | Interference detection circuit, electrostatic discharge protection circuit and battery protection chip |
-
2016
- 2016-12-01 CN CN201621307999.5U patent/CN206594214U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109030896A (en) * | 2018-07-20 | 2018-12-18 | 国网湖南省电力有限公司 | A kind of impact load electric energy meter |
| CN116754884A (en) * | 2023-08-22 | 2023-09-15 | 成都利普芯微电子有限公司 | Interference detection circuit, electrostatic discharge protection circuit and battery protection chip |
| CN116754884B (en) * | 2023-08-22 | 2023-11-10 | 成都利普芯微电子有限公司 | Interference detection circuit, electrostatic discharge protection circuit and battery protection chip |
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