CN108169529A - Anti- high frequency electricity filching device - Google Patents
Anti- high frequency electricity filching device Download PDFInfo
- Publication number
- CN108169529A CN108169529A CN201711447803.1A CN201711447803A CN108169529A CN 108169529 A CN108169529 A CN 108169529A CN 201711447803 A CN201711447803 A CN 201711447803A CN 108169529 A CN108169529 A CN 108169529A
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- Prior art keywords
- module
- control module
- frequency
- high frequency
- electricity filching
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R11/00—Electromechanical arrangements for measuring time integral of electric power or current, e.g. of consumption
- G01R11/02—Constructional details
- G01R11/24—Arrangements for avoiding or indicating fraudulent use
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The present invention is suitable for preventing electricity theft for power network detection technique field, provides a kind of anti-high frequency electricity filching device.The device includes：Shell；Control module, communication module and high-frequency signal detection module are equipped in the shell；The control module is used to start the high-frequency signal detection module；The external signal, there are during the high-frequency signal that frequency is more than predeterminated frequency in the external signal, is sent to the control module by the high-frequency signal detection module for detecting external signal；The control module is additionally operable to obtain stealing information, and start the communication module；The stealing information includes frequency values, detection time and the detection site of the external signal.The communication module is used to the stealing information being sent to monitoring center；The shell is screw shaped.The present invention can have found high frequency stealing signal and collect evidence in time, also, the device is not easy to be found and destroyed by stealing personnel.
Description
Technical field
The invention belongs to preventing electricity theft for power network detection technique field more particularly to a kind of anti-high frequency electricity filching devices.
Background technology
At present, stealing criminal offence remains incessant after repeated prohibition, and national electric energy is caused largely to be lost in, this seriously compromises power supply enterprise
The legitimate rights and interests of industry have upset normal supply order.It is a kind of current more common high-tech stealing using high frequency stealing
Mode, high frequency electricity filching device can be allowed in the case where not contacting measuring equipment, not destroying lead sealing measuring equipment stop metering or
Few metering, achievees the purpose that stealing.High frequency stealing mode does not damage measuring equipment, and measuring equipment can after high-frequency signal stops
With the normal function of measuring of momentary recovery.At present, the detection of high-frequency signal stealing usually by inspector's Portable device to scene into
Row detection since stealing personnel can remove high frequency electricity filching device before inspector arrives, usually can't detect
The situation of high-frequency signal causes stealing evidence obtaining difficult.
Invention content
In view of this, an embodiment of the present invention provides a kind of anti-high frequency electricity filching devices, existing in the prior art to solve
The problem of evidence obtaining of high frequency stealing detection method is difficult.
An embodiment of the present invention provides a kind of anti-high frequency electricity filching device, including：Shell, control module, communication module and height
Frequency signal detection module；The control module, the communication module and the high-frequency signal detection module are set on the shell
Interior, the control module is connect respectively with the communication module and the high-frequency signal detection module；
The control module is used to start the high-frequency signal detection module；
The high-frequency signal detection module is more than there are frequency in the external signal and presets for detecting external signal
During the high-frequency signal of frequency, the external signal is sent to the control module；
The control module is additionally operable to obtain stealing information, and start the communication module, will by the communication module
The stealing information is sent to monitoring center；The stealing information includes frequency values, detection time and the inspection of the external signal
Geodetic point；
The shell is screw-like.
Optionally, the control module is used to start the primary high-frequency signal detection module every preset time；
The control module is additionally operable to after the stealing information is sent to the monitoring center by the communication module, is closed
Close the communication module.
Optionally, the anti-high frequency electricity filching device further includes wave filter and analog to digital conversion circuit, the wave filter and described
Analog to digital conversion circuit may be contained in the shell；The wave filter respectively with the high-frequency signal detection module and the modulus
Conversion circuit connects；Analog-digital conversion circuit as described is connect with the control module；
The wave filter for being filtered to the external signal, believe by the high frequency for obtaining frequency values more than predeterminated frequency
Number；
Analog-digital conversion circuit as described is used to the high-frequency signal being converted to digital signal, and the digital signal is sent
To the control module.
Optionally, the anti-high frequency electricity filching device further includes memory module, and the memory module is set in the shell；
The memory module is connect with the control module；The memory module includes program sub-module stored and data storage submodule
Block, for storing control program, the data sub-module stored is used to store the stealing information described program sub-module stored.
Optionally, the anti-high frequency electricity filching device further includes reset circuit, and the reset circuit is set in the shell；
The reset circuit is connect with the control module.
Optionally, the anti-high frequency electricity filching device further includes watchdog circuit, and the watchdog circuit is set to described outer
In shell；The watchdog circuit is connect with the control module.
Optionally, the anti-high frequency electricity filching device further includes clock circuit, and the clock circuit is set in the shell；
The clock circuit is connect with the control module.
Optionally, the anti-high frequency electricity filching device further includes wireless network module, and the wireless network module is set to institute
It states in shell；The wireless network module is connect with the control module.
Optionally, the anti-high frequency electricity filching device further includes power module, and the power module is set in the shell；
The power module is the anti-high frequency electricity filching device power supply.
Optionally, the anti-high frequency electricity filching device further includes power-fail detection circuit, and the power-fail detection circuit is set to institute
It states in shell；The power-fail detection circuit is connect with the control module.
Existing advantageous effect is the embodiment of the present invention compared with prior art：Anti- high frequency provided in an embodiment of the present invention is stolen
Electric installation includes shell, control module, communication module and high-frequency signal detection module, control module, communication module and high frequency letter
Number detection module may be contained in shell.High-frequency signal detection module is started by control module and detects external signal, is being detected
Into external signal there are during the high-frequency signal that frequency is more than predeterminated frequency, external signal is sent to control module, controls mould
Block obtains stealing information, and starts communication module, and stealing information is sent to monitoring center by communication module.Energy of the embodiment of the present invention
It is enough to find high frequency stealing signal in time and collect evidence, also, the shell of anti-high frequency electricity filching device is set as screw shaped, anti-high frequency stealing
Device is mounted in measuring equipment, and concealment is strong, is not easy to be found and destroyed by stealing personnel.
Description of the drawings
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to embodiment or description of the prior art
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description be only the present invention some
Embodiment, for those of ordinary skill in the art, without having to pay creative labor, can also be according to these
Attached drawing obtains other attached drawings.
Fig. 1 is the structure diagram of anti-high frequency electricity filching device provided in an embodiment of the present invention；
Fig. 2 is the structure diagram of anti-high frequency electricity filching device provided in an embodiment of the present invention.
Specific embodiment
In being described below, in order to illustrate rather than in order to limit, it is proposed that such as tool of particular system structure, technology etc
Body details, to understand thoroughly the embodiment of the present invention.However, it will be clear to one skilled in the art that there is no these specifically
The present invention can also be realized in the other embodiments of details.In other situations, it omits to well-known system, device, electricity
Road and the detailed description of method, in case unnecessary details interferes description of the invention.
In order to illustrate technical solutions according to the invention, illustrated below by specific embodiment.
It please refers to Fig.1, anti-high frequency electricity filching device includes：Shell 101, high-frequency signal detection module 102, control module 103
With communication module 104, high-frequency signal detection module 102, control module 103 and communication module 104 may be contained in shell 101.
The control module 103 is connect respectively with the communication module 104 and the high-frequency signal detection module 103.The control mould
Block 103 is used to start the high-frequency signal detection module 102.The high-frequency signal detection module 102 is used to detect external signal,
There are during the high-frequency signal that frequency is more than predeterminated frequency in the external signal, the external signal is sent to the control
Module 103.The control module 103 is additionally operable to obtain stealing information, and start the communication module 104, passes through the communication
The stealing information is sent to monitoring center by module 104.The stealing information includes the frequency values of the external signal, detection
Time and detection site.The shell 101 is screw-like.Monitoring center is the terminal device of inspector, including but not limited to
Mobile phone, computer, tablet computer.Inspector can know stealing information by monitoring center, and scene is gone to convenient for inspector
It verifies.
Anti- high frequency electricity filching device provided in an embodiment of the present invention includes shell 101, high-frequency signal detection module 102, control
Module 103 and communication module 104, high-frequency signal detection module 102, control module 103 and communication module 104 may be contained within shell
In 101.High-frequency signal detection module 102 is started by control module 103 and detects external signal, is deposited in external signal is detected
When frequency is more than the high-frequency signal of predeterminated frequency, external signal is sent to control module 103, the acquisition of control module 103 is stolen
Power information, and start communication module 104, stealing information is sent to monitoring center by communication module 104.The embodiment of the present invention can
High frequency stealing signal is found in time and is collected evidence, also, the shell 101 of anti-high frequency electricity filching device is set as screw shaped, by anti-high frequency
Electricity filching device is mounted in measuring equipment, and concealment is strong, is not easy to be found and destroyed by stealing personnel.
In embodiments of the present invention, control module 103 can be central processing unit (Central Processing
Unit, CPU), can also be other general processors, digital signal processor (Digital Signal Processor,
DSP), application-specific integrated circuit (Application Specific Integrated Circuit, ASIC), ready-made programmable gate
Array (Field-Programmable Gate Array, FPGA) either other programmable logic device, discrete gate or crystal
Pipe logical device, discrete hardware components etc..General processor can be microprocessor or the processor can also be it is any often
Processor of rule etc..Control core of the control module 103 as anti-high frequency electricity filching device.High-frequency signal detection module 102 is height
Frequency signal deteching circuit.Communication module 104 for general packet radio service (General Packet Radio Service,
GPRS) module.
Optionally, high-frequency signal detection module 102 includes comparator circuit, and comparator circuit is by the frequency values of external signal
It is compared with predeterminated frequency value.Specifically, external signal includes the signal of multiple and different frequencies, as long as detecting external signal
It is middle there are frequency be more than predeterminated frequency frequency values, then illustrate that there are high-frequency signals in external signal, then send external signal
To controller 102.
In addition, high-frequency signal detection module 102 further includes frequency counter, frequency counter is used to determine in external signal
Frequency values are more than the number of signals of predeterminated frequency, and number of signals is sent to control module 103.
After control module 103 receives external signal, the control module 103 be additionally operable to obtain external signal it is lasting when
Between, when the duration of external signal being more than preset time, control module 103 starts communication module 104, in external signal
When duration is less than or equal to preset time, does not then start communication module 104, wrong letter is sent to avoid communication module 104
Breath.Control module 103 is by frequency values, number of signals, detection time, detection site, duration of portion's signal outside acquisition etc.
Stealing information is sent to monitoring center by communication module 104.
Anti- high frequency electricity filching device is mounted on the shell of ammeter box, the control module 103 in anti-high frequency electricity filching device opens
Dynamic high-frequency signal detection module 102, makes high-frequency signal detection module 102 detect in real time and whether there is in measuring equipment preset range
External signal, when high-frequency signal detection module 102 detects external signal, the comparator in high-frequency signal detection module 102
The frequency values of external signal are compared by circuit with predeterminated frequency value, are detected there are frequency to be more than in external signal and are preset frequency
During the frequency values of rate, external signal is sent to control module 103, meanwhile, the frequency counting in high-frequency signal detection module 102
Device determines that frequency values are more than the number of signals of predeterminated frequency in external signal, and the number of signals is sent to control module 103.
For example, predeterminated frequency is set as 10MHz, high-frequency signal detection module 102 detects in external signal that there are frequencies to be more than
10MHz, and frequency values are 5 more than the number of signals of predeterminated frequency, then are sent to the external signal and the number of signals
Control module 103.After control module 103 receives the external signal, it is more than preset time in the duration of the external signal
When, start communication module 104.For example, preset time is set as 2s, control module 103 detects that the duration of external signal is big
When 2s, start communication module 104, and obtain the frequency values of external signal, number of signals, detection time, detection site, continue
The stealings such as time information, monitoring center is sent to by communication module 104, and holding for external signal is detected in control module 103
When the continuous time is not more than 2s, does not then start communication module 104, terminate this detection.
Optionally, control module 103 is used to start the primary high-frequency signal detection module 102 every preset time.
In embodiments of the present invention, high-frequency signal detection module 102 starts one by control module 103 every preset time
It is secondary, for example, starting every 2 milliseconds primary.High-frequency detection mould can also be set as needed by control module 103 in inspector
The startup period of block 102 and initiation culture, so as to meet the needs of user is different.For example, in regional A, control module 103 exists
8 a.m. starts high-frequency signal detection module 102 at 5 points to afternoon, makes high-frequency signal detection module 102 primary every detection in 2 seconds
External signal, in regional B, control module 103 starts high-frequency signal detection module 102 at 5 points to 10 points at night in the afternoon, makes high frequency
Signal detection module 102 detected an external signal every 1 second.High-frequency signal detection module 102 is controlled by control module 103
The startup time and initiation culture, disclosure satisfy that the demand of different user.
Optionally, the control module 103 is additionally operable to be sent to the stealing information in the communication module 104 described
After monitoring center, the communication module 104 is closed.
In embodiments of the present invention, the opening and closing of communication module 104 are controlled by control module 103, control module 103
After stealing information is obtained, control module 103 opens communication module 104, and stealing information is sent to prison by communication module 104
Control center, after stealing information is sent to monitoring center by communication module 104, by 103 closed communication module 104 of control module.It is logical
News module 104, in opening, is closed when not needing to and using when needing to use, can save disappearing for electric energy
Consumption.
For example, anti-high frequency electricity filching device is mounted on the shell of ammeter box, control module 103 is in 8 a.m. to afternoon 5
Point starts high-frequency signal detection module 102, high-frequency signal detection module 102 is made to detect an external signal every 2 seconds, in high frequency
Signal detection module 102 detect in external signal there are frequency be more than predeterminated frequency high-frequency signal when, by the external signal
It is sent to control module 103, control module 103 obtains stealing information, and starts communication module 104, and communication module 104 is by stealing
Information is sent to monitoring center, after being sent, 103 closed communication module 104 of control module, until receiving high frequency next time
Communication module 104 is opened during signal.
Optionally, it please referring to Fig.2, the anti-high frequency electricity filching device further includes wave filter 105 and analog to digital conversion circuit 106,
The wave filter 105 and analog-digital conversion circuit as described 106 may be contained in the shell 101.The wave filter 105 respectively with institute
It states high-frequency signal detection module 102 and analog-digital conversion circuit as described 106 connects；Analog-digital conversion circuit as described 106 and the control
Module 103 connects.The wave filter 105 obtains frequency values more than predeterminated frequency for being filtered to the external signal
High-frequency signal.Analog-digital conversion circuit as described 106 is used to the high-frequency signal being converted to digital signal, and by the digital signal
It is sent to the control module 103.
In embodiments of the present invention, high-frequency signal detection module 102 is detected there are frequency to be more than in external signal and be preset
During the frequency values of frequency, external signal is sent to wave filter 105, filtering frequency values in external signal by wave filter 105 is less than
The low frequency signal of predeterminated frequency obtains high-frequency signal, and high-frequency signal is sent to D/A converting circuit 106, digital-to-analogue conversion electricity
High-frequency signal is converted to digital signal, and digital signal is sent to control module 103 by road 106.It can only in control module 103
When identifying digital signal, by wave filter 105 and D/A converting circuit 106, digital signal is sent to control module 103.
For example, predeterminated frequency is set as 10MHz, high-frequency signal detection module 102 detects that there are frequencies in external signal
During frequency values more than 10MHz, external signal is sent to wave filter 105, frequency is filtered less than 10MHz's by wave filter 105
Low frequency signal obtains the high-frequency signal that frequency is more than 10MHz, which is analog signal, which is sent to
The high-frequency signal is converted to digital signal and is sent to control module 103 by analog to digital conversion circuit 106, analog to digital conversion circuit 106.
Optionally, the anti-high frequency electricity filching device further includes memory module 107, and the memory module 107 is set to shell
In 101.The memory module 107 is connect with the control module 103.The memory module 107 includes program sub-module stored
With data sub-module stored, for storing control program, the data sub-module stored is used to deposit described program sub-module stored
Store up the stealing information.
In embodiments of the present invention, memory module 107 includes but not limited to plug-in type hard disk, intelligent memory card (Smart
Media Card, SMC), secure digital (Secure Digital, SD) card, flash card (Flash Card) etc..It is deposited by program
Submodule storage computer-controlled program is stored up, stealing information is stored by data sub-module stored.
Optionally, the anti-high frequency electricity filching device further includes reset circuit 108, and the reset circuit 108 is set to described
In shell 101.The reset circuit 108 is connect with the control module 103.In embodiments of the present invention, in control module 103
When powering on, reset circuit 108 resets control module 103, and into working condition, control module 103 is made to be opened from original state
Beginning work.Ensure the stable operation of control module 102 by reset circuit 108.Reset circuit 108 includes but not limited to derivative-type
Reset circuit, integral form reset circuit and comparator-type reset circuit.
Optionally, the anti-high frequency electricity filching device further includes watchdog circuit 109, and the watchdog circuit 109 is set to
In the shell 101.The watchdog circuit 109 is connect with the control module 103.Watchdog circuit 109 is detecting control
When molding block 103 breaks down, Restart Signal is sent out, restarts control module 103.Watchdog circuit 109 ensures control module 103
Stable operation.
Optionally, the anti-high frequency electricity filching device further includes clock circuit 110, and the clock circuit 110 is set to described
In shell 101.The clock controller 110 is connect with the control module 103.Clock controller 110 ensures the operation of clock
And the correctness of clock.
Optionally, the high frequency electricity filching device further includes wireless network (Wireless Fidelity, WIFI) module 111,
The WIFI module 111 is set in the shell 101, and the WIFI module 111 is connect with the control module 103.
In embodiments of the present invention, the inspector at stealing scene obtains stealing information, WIFI moulds by WIFI module 111
Stealing information is sent to the terminal device of stealing on-site examination personnel by block 111, is carried out convenient for inspector according to stealing information
On-site verification.
Optionally, the anti-high frequency electricity filching device further includes power module (attached drawing is not shown), the power module setting
In in the shell 101.The power module is the anti-high frequency electricity filching device power supply.
Optionally, the anti-high frequency electricity filching device further includes power-fail detection circuit 112, and the power-fail detection circuit 112 is set
It is placed in the shell 101.The power-fail detection circuit 113 is connect with the control module 103.Pass through power-fail detection circuit
Whether 112 detection control modules 103 power normal.
Embodiment described above is merely illustrative of the technical solution of the present invention, rather than its limitations；Although with reference to aforementioned reality
Example is applied the present invention is described in detail, it will be understood by those of ordinary skill in the art that：It still can be to aforementioned each
Technical solution recorded in embodiment modifies or carries out equivalent replacement to which part technical characteristic；And these are changed
Or replace, the spirit and scope for various embodiments of the present invention technical solution that it does not separate the essence of the corresponding technical solution should all
It is included within protection scope of the present invention.
Claims (10)
1. a kind of anti-high frequency electricity filching device, which is characterized in that including：Shell, control module, communication module and high-frequency signal detection
Module；The control module, the communication module and the high-frequency signal detection module are set in the shell, the control
Module is connect respectively with the communication module and the high-frequency signal detection module；
The control module is used to start the high-frequency signal detection module；
For the high-frequency signal detection module for detecting external signal, there are frequencies in the external signal to be more than predeterminated frequency
High-frequency signal when, the external signal is sent to the control module；
The control module is additionally operable to obtain stealing information, and start the communication module, by the communication module by described in
Stealing information is sent to monitoring center；The stealing information includes frequency values, detection time and the detection ground of the external signal
Point；
The shell is screw-like.
2. anti-high frequency electricity filching device as described in claim 1, which is characterized in that the control module is used for every preset time
Start the primary high-frequency signal detection module；
The control module is additionally operable to after the stealing information is sent to the monitoring center by the communication module, closes institute
State communication module.
3. anti-high frequency electricity filching device as described in claim 1, which is characterized in that the anti-high frequency electricity filching device further includes filtering
Device and analog to digital conversion circuit, the wave filter and analog-digital conversion circuit as described may be contained in the shell；The wave filter point
It is not connect with the high-frequency signal detection module and analog-digital conversion circuit as described；Analog-digital conversion circuit as described and the control module
Connection；
The wave filter obtains the high-frequency signal that frequency values are more than predeterminated frequency for being filtered to the external signal；
Analog-digital conversion circuit as described is used to the high-frequency signal being converted to digital signal, and the digital signal is sent to institute
State control module.
4. anti-high frequency electricity filching device as described in claim 1, which is characterized in that the anti-high frequency electricity filching device further includes storage
Module, the memory module are set in the shell；The memory module is connect with the control module；The memory module
Including program sub-module stored and data sub-module stored, described program sub-module stored controls program, the number for storing
It is used to store the stealing information according to sub-module stored.
5. anti-high frequency electricity filching device as described in claim 1, which is characterized in that the anti-high frequency electricity filching device further includes reset
Circuit, the reset circuit are set in the shell；The reset circuit is connect with the control module.
6. anti-high frequency electricity filching device as described in claim 1, which is characterized in that the anti-high frequency electricity filching device, which further includes, guards the gate
Dog circuit, the watchdog circuit are set in the shell；The watchdog circuit is connect with the control module.
7. anti-high frequency electricity filching device as described in claim 1, which is characterized in that the anti-high frequency electricity filching device further includes clock
Circuit, the clock circuit are set in the shell；The clock circuit is connect with the control module.
8. anti-high frequency electricity filching device as described in claim 1, which is characterized in that the anti-high frequency electricity filching device further includes wirelessly
Network module, the wireless network module are set in the shell；The wireless network module is connect with the control module.
9. anti-high frequency electricity filching device as described in claim 1, which is characterized in that the anti-high frequency electricity filching device further includes power supply
Module, the power module are set in the shell；The power module is the anti-high frequency electricity filching device power supply.
10. anti-high frequency electricity filching device as described in any one of claim 1 to 9, which is characterized in that the anti-high frequency electricity filching device
Power-fail detection circuit is further included, the power-fail detection circuit is set in the shell；The power-fail detection circuit and the control
Molding block connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711447803.1A CN108169529A (en) | 2017-12-27 | 2017-12-27 | Anti- high frequency electricity filching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711447803.1A CN108169529A (en) | 2017-12-27 | 2017-12-27 | Anti- high frequency electricity filching device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108169529A true CN108169529A (en) | 2018-06-15 |
Family
ID=62518441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711447803.1A Pending CN108169529A (en) | 2017-12-27 | 2017-12-27 | Anti- high frequency electricity filching device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108169529A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103439552A (en) * | 2013-08-19 | 2013-12-11 | 国家电网公司 | Chip capable of recognizing high-frequency and strong-magnetism electricity stealing behavior |
| CN103439549A (en) * | 2013-08-19 | 2013-12-11 | 国家电网公司 | Chip capable of recognizing high-frequency electricity stealing behavior |
| CN203350316U (en) * | 2013-07-19 | 2013-12-18 | 范吉亮 | Alarm device for preventing high frequency electricity stealing |
| US20140300412A1 (en) * | 2011-12-29 | 2014-10-09 | Pizzato Elettrica S.R.L. | Electronic safety device for a protection barrier |
| CN205139211U (en) * | 2015-10-25 | 2016-04-06 | 国网天津静海供电有限公司 | Prevent high frequency and steal electric terminal box |
-
2017
- 2017-12-27 CN CN201711447803.1A patent/CN108169529A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140300412A1 (en) * | 2011-12-29 | 2014-10-09 | Pizzato Elettrica S.R.L. | Electronic safety device for a protection barrier |
| CN203350316U (en) * | 2013-07-19 | 2013-12-18 | 范吉亮 | Alarm device for preventing high frequency electricity stealing |
| CN103439552A (en) * | 2013-08-19 | 2013-12-11 | 国家电网公司 | Chip capable of recognizing high-frequency and strong-magnetism electricity stealing behavior |
| CN103439549A (en) * | 2013-08-19 | 2013-12-11 | 国家电网公司 | Chip capable of recognizing high-frequency electricity stealing behavior |
| CN205139211U (en) * | 2015-10-25 | 2016-04-06 | 国网天津静海供电有限公司 | Prevent high frequency and steal electric terminal box |
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Application publication date: 20180615 |