CN109521258A - A kind of direct current electrical verification system and method based on MEMS electric-field sensor - Google Patents
A kind of direct current electrical verification system and method based on MEMS electric-field sensor Download PDFInfo
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- CN109521258A CN109521258A CN201910089384.1A CN201910089384A CN109521258A CN 109521258 A CN109521258 A CN 109521258A CN 201910089384 A CN201910089384 A CN 201910089384A CN 109521258 A CN109521258 A CN 109521258A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/145—Indicating the presence of current or voltage
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- 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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Abstract
This application discloses a kind of direct current electrical verification system and method based on MEMS electric-field sensor, MEMS electric-field sensor are used to measure the electrostatic field of DC power transmission line；MEMS electric-field sensor is electrically connected by signal processing module with STM32 central processing control module；Signal processing module processing MEMS electric-field sensor is removed the digital signal of interference volume；Signal processing module is electrically connected by STM32 central processing control module with bluetooth radio module；STM32 central processing control module is electrically connected by bluetooth radio module with sound and light alarm module.MEMS electric field device is handled by signal processing module to be removed the digital signal of interference volume, is avoided the electromagnetic interference on direct current transportation circuit, is generated erroneous judgement；STM32 central processing control module realizes the acquisition to electric field signal, there is electric prompting by the realization of acousto-optic warning module, simplifies the Operating Complexity of electrical verification operation, it can be achieved that accurately detecting the electriferous state of DC equipment, and alarm, with easy to operate, interference resistance is strong.
Description
Technical field
The present invention relates to direct current electrical verification technical field more particularly to a kind of direct current electrical verification systems based on MEMS electric-field sensor
System and method.
Background technique
Operating maintenance is to grasp charging equipment operating condition, in time the important means of discovery and processing equipment defect.According to
National associated safety regulation regulation, works on the electrical equipment of brownout or power failure work bottom end is installed before being grounded, and needs
First strict and impartial equipment or route whether to determine no-voltage, prevent live line and hit ground wire, accidentally touch the accidents such as electric equipment,
To ensure the safety of construction operation.Compared to transmission line of alternation current, DC power transmission line, route is made when having conveying equal-wattage
The advantages that valence is low, route active loss is small, therefore in electric system transmission of electricity, generally use direct current transportation.
Common contact electrical verification system carries out electrical verification to DC power transmission line.In contact electrical verification system, direct current is utilized
Electroscope detection power equipment or DC transmission line road whether there is voltage, be to contact conducting wire with high voltage direct current line, then
It is popped one's head in by electrical verification and voltage is introduced into circuit, exported after being measured inside electroscope to this voltage.Using contact
Operating personnel's hot line job bring safety problem can not be solved by carrying out electrical verification to DC power transmission line, in practical electrical verification operation
Cheng Zhong, may be at any time because DC transmission line road generates arc through electrical verification system and threatens the safety of operating personnel.
Also, for some DC power transmission line decorating positions height, the reasons such as connection equipment size is big, contact electrical verification system
The utilization of system is limited.Therefore, electrical verification operation is carried out using non-contacting electroscopy equipment for DC power transmission line general Study.It is existing
Have in technology to have using unmanned plane and carry out electrical verification, replaces operating personnel's hot line job with using unmanned plane, but in electrical verification
Conductive contact electrical verification is still used in journey, the problem of this method can be brought is when direct current transportation circuit is more, and conducting wire may be same
When contact upper layer and route cause to generate erroneous judgement, even result in electroscope breakdown, nothing and by the electromagnetic interference on circuit
The accidents such as man-machine breakage cause the serious accidents such as the alternate flashover of DC power transmission line.
Summary of the invention
The direct current electrical verification system based on MEMS electric-field sensor that this application provides a kind of is existing contactless straight to solve
It flows in electrical verification system, still uses conductive contact electrical verification, when direct current transportation circuit is more, conducting wire may contact upper layer and line simultaneously
Road, and by the electromagnetic interference on circuit, cause to generate erroneous judgement, even results in electroscope and puncture, the accidents such as unmanned plane breakage,
The technical issues of causing the serious accidents such as DC power transmission line alternate flashover.
A kind of direct current electrical verification system based on MEMS electric-field sensor, the direct current electrical verification based on MEMS electric-field sensor
System includes MEMS electric-field sensor, signal processing module, STM32 central processing control module, bluetooth radio module, acousto-optic report
Alert module and power module；
The MEMS electric-field sensor, the signal processing module, the STM32 central processing control module, the indigo plant
Tooth wireless module, the sound and light alarm module are electrically connected with the power module；
The MEMS electric-field sensor is used to measure the electrostatic field of DC power transmission line；
The MEMS electric-field sensor is electrically connected with the signal processing module；
The signal processing module is used to handle the MEMS electric-field sensor and is removed the digital signal of interference volume；
The MEMS electric-field sensor is electrically connected by the signal processing module and the STM32 central processing control module
It connects；
The signal processing module is electrically connected by the STM32 central processing control module with the bluetooth radio module
It connects；
The STM32 central processing control module is electrically connected by the bluetooth radio module and the sound and light alarm module
It connects；
Alarm signal setting value is set in the STM32 central processing control module；
The STM32 central processing control module be used for by the signal processing module be removed interference volume number believe
It number is handled；
The bluetooth radio module is used for that treated that signal is sent to operation by the STM32 central processing control module
In the terminal device of personnel；
The STM32 central processing control module is also used to control the sound-light alarm mould by the bluetooth radio module
Block has carried out electric prompting.
Further, the signal processing module includes I/V converter, voltage follower, lock-in amplifier and A/D conversion
Device；
The I/V converter is used to that the induced current that induction electrode in the MEMS electric-field sensor generates to be received and be turned
Turn to the voltage signal with frequency variation；
The voltage follower is used to the same frequency voltage signal that I/V converter exports being converted to Low ESR by high impedance
Voltage signal；
The lock-in amplifier is used to that voltage signal that the voltage follower exports to be set gain and amplified as interior, and
It is responded by same frequency or frequency multiplication, with the noise component of phase, removes interference volume, obtain voltage-measurable signal；
Survey signal progress analog-to-digital conversion of the A/D converter for exporting the lock-in amplifier obtains acquisition institute
Need the value of signal.
Further, the STM32 central processing control module is communicatively coupled by serial ports and the bluetooth module.
Further, the STM32 central processing control module is used for the telecommunications exported according to the signal processing module
It number is handled, and controls the sound and light alarm module and carried out electric prompting, cruise duration was up to 23 hours.
Further, the direct current electricity-testing method based on MEMS electric-field sensor includes:
A kind of direct current electricity-testing method based on MEMS electric-field sensor, the direct current electrical verification system based on MEMS electric-field sensor
Self-test is carried out, self-test is by carrying out in next step, and otherwise, carry out system reports an error；
The electrostatic field of MEMS electric-field sensor measurement DC power transmission line；
Signal processing module handles the electric signal that the MEMS electric-field sensor obtains；
Treated that signal is sent to operating personnel's for the STM32 central processing control module for bluetooth radio module
In terminal device, and alarm signal setting value and the signal processing module are set in by STM32 central processing control module
Output electric signal compare, after the output electric signal of the signal processing module is more than the alarm signal setting value, hold
In next step, otherwise alarm free responds row；
The STM32 central processing control module controls the sound and light alarm module by the bluetooth radio module and carries out
There is electric prompting.
Further, the signal processing module handles the electric signal that the MEMS electric-field sensor obtains and includes:
The induced current that induction electrode in the MEMS electric-field sensor generates is received and is converted by the I/V converter
With the voltage signal of frequency variation；
The same frequency voltage signal that I/V converter exports is converted to low-impedance electricity by high impedance by the voltage follower
Press signal；
Voltage signal that the voltage follower exports is set gain and is amplified by the lock-in amplifier as interior, and will be same
Frequency or frequency multiplication, the noise component response with phase, remove interference volume, obtain voltage-measurable signal；
The signal progress analog-to-digital conversion of surveying that the A/D converter exports the lock-in amplifier obtains acquiring required letter
Number value.
Further, the STM32 central processing control module is communicated by serial ports with the bluetooth radio module
Connection.
Further, the telecommunications that the STM32 central processing control module is exported according to the signal processing module in real time
It number is handled, and the sound and light alarm module is controlled by the bluetooth radio module and has carried out electric prompting.
The beneficial effect of the application is:
From the above technical scheme, this application provides a kind of direct current electrical verification system based on MEMS electric-field sensor and
Method, the system include MEMS electric-field sensor, signal processing module, STM32 central processing control module, bluetooth is wireless mould
Block, sound and light alarm module and power module；The MEMS electric-field sensor is used to measure the electrostatic field of DC power transmission line；It is described
MEMS electric-field sensor is electrically connected by the signal processing module with the STM32 central processing control module；The signal
Processing module is used to handle the MEMS electric-field sensor and is removed the digital signal of interference volume；The signal processing module is logical
The STM32 central processing control module is crossed to be electrically connected with the bluetooth radio module；The STM32 central processing control module
It is electrically connected by the bluetooth radio module with the sound and light alarm module.By signal processing module for handling the MEMS
Electric-field sensor is removed the digital signal of interference volume, avoids generating erroneous judgement due to the electromagnetic interference on direct current transportation circuit；
And STM32 central processing control module realizes the acquisition to electric field signal, has electric prompting by the realization of acousto-optic warning module, letter
The Operating Complexity of electric operation is chemically examined, it can be achieved that accurately detecting the electriferous state and alarm of DC equipment, there is operation letter
List, interference resistance are strong.
Detailed description of the invention
In order to illustrate more clearly of the technical solution of the application, letter will be made to attached drawing needed in the embodiment below
Singly introduce, it should be apparent that, for those of ordinary skills, without any creative labor,
It is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of structural schematic diagram of the direct current electrical verification system based on MEMS electric-field sensor of the application；
Fig. 2 is the structural schematic diagram of the application signal processing module；
Fig. 3 is the current graph of the application signal processing module；
Fig. 4 is a kind of flow chart of the direct current electricity-testing method based on MEMS electric-field sensor of the application.
Wherein, 1-MEMS electric-field sensor, 2- signal processing module, 3-STM32 central processing control module, 4- bluetooth without
Wire module, 5- sound and light alarm module, 6- power module, 7-I/V converter, 8- voltage follower, 9- lock-in amplifier, 10-A/D
Converter.
Specific embodiment
Here embodiment will be illustrated in detail, the example is illustrated in the accompanying drawings.In the following description when referring to the accompanying drawings,
Unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements.Implement described in following embodiment
Mode does not represent all embodiments consistent with the application.
It is a kind of structural schematic diagram of the direct current electrical verification system based on MEMS electric-field sensor of the application referring to Fig. 1, Fig. 2 is
The structural schematic diagram of the application signal processing module, Fig. 3 are the current graph of the application signal processing module.
A kind of direct current electrical verification system based on MEMS electric-field sensor, the direct current electrical verification based on MEMS electric-field sensor
System includes MEMS electric-field sensor 1, signal processing module 2, STM32 central processing control module 3, bluetooth radio module 4, sound
Light alarm module 5 and power module 6；
It is the MEMS electric-field sensor 1, the signal processing module 2, the STM32 central processing control module 3, described
Bluetooth radio module 4, the sound and light alarm module 5 are electrically connected with the power module 6；
The MEMS electric-field sensor 1 is used to measure the electrostatic field of DC power transmission line；
The MEMS electric-field sensor 1 is electrically connected with the signal processing module 2；
The signal processing module 2 is used to handle the MEMS electric-field sensor 1 and is removed the digital signal of interference volume；
The MEMS electric-field sensor 1 passes through the signal processing module 2 and the STM32 central processing control module 3
Electrical connection；
The signal processing module 2 passes through the STM32 central processing control module 3 and 4 electricity of bluetooth radio module
Connection；
The STM32 central processing control module 3 passes through the bluetooth radio module 4 and 5 electricity of sound and light alarm module
Connection；
Alarm signal setting value is set in the STM32 central processing control module 3；
The STM32 central processing control module 3 is used for the number of interference volume that the signal processing module 2 is removed
Signal is handled；
The bluetooth radio module 4 is used for that treated that signal is sent to work by the STM32 central processing control module 3
In the terminal device of industry personnel；
The STM32 central processing control module 3 is also used to control the sound-light alarm by the bluetooth radio module 4
Module 5 has carried out electric prompting.
Have in the prior art using unmanned plane and carry out electrical verification, replaces operating personnel's hot line job with using unmanned plane, but
Be still using conductive contact electrical verification during electrical verification the problem of this method can be brought be when direct current transportation circuit is more,
Conducting wire may contact upper layer and route simultaneously, and by the electromagnetic interference on circuit, cause to generate erroneous judgement, even result in electrical verification
Device breakdown, the accidents such as unmanned plane breakage cause the serious accidents such as the alternate flashover of DC power transmission line.
In the present embodiment, the effect of power module 6, first can be used for being isolated, weak as security isolation, such as forceful electric power
It is electrically isolated, thunder and lightning insulation blocking etc.；It is isolated as noise, such as analog circuit is isolated with digital circuit, strong and weak signals isolation；Make
For ground loop elimination, such as signal transmission；Second can be used for protecting, short-circuit protection, overvoltage protection, overcurrent protection etc.；The
Three can be used for voltage transformation, such as boosting inverter, decompression transformation etc.；4th can be used for pressure stabilizing, such as remote DC power supply；
5th can be used for noise reduction, such as active power filtering.It can be realized by power module 6 to MEMS electric-field sensor 1, signal processing
Module 2, STM32 central processing control module 3, bluetooth radio module 4, the control of 5 power supply of sound and light alarm module.
MEMS electric-field sensor is the novel sensor manufactured using microelectronics and micromachining technology.With body
Product it is small, light weight and cost is low, low in energy consumption, high reliablity, suitable for mass production, be easily integrated and realize intelligentized feature.
Meanwhile the characteristic size of micron dimension allows it to complete the irrealizable function of certain traditional sensors.
Around DC transmission line line conductor the space electric field in unionized region include on conducting wire ionic charge directly generate
Electric field, as electrostatic field.It is used to measure the electrostatic field of DC power transmission line by MEMS electric-field sensor 1, realizes by straight
The electric field of stream transmission line of electricity is analyzed.
Signal processing module 2 is used to handle the MEMS electric-field sensor 1 and is removed the digital signal of interference volume, avoids
Due to the electromagnetic interference on direct current transportation circuit, erroneous judgement is generated.
Signal processing module 2 is removed the digital signal of interference volume, inputs STM32 central processing control module 3, center
Processing and control module 3 is used as system master circuit controller, is the electrical verification system using 32 8-digit microcontrollers as core, to input
The be removed digital signal of interference volume of signal processing module 2 is handled, and will can be displayed in the terminal device of operating personnel
Data conveyed by bluetooth radio module 4.Also, STM32 central processing control module 3 is according to the report of interior setting
Alert signal setting value, the digital signal value of the removing interference volume of input is compared with alarm signal setting value, further according to
Comparison result determines, if needs to have carried out electric prompting by the control of bluetooth radio module 4 sound and light alarm module 5.Work as input
Removing interference volume digital signal value be not higher than alarm signal setting value, without alarming；When the removing of input is interfered
The digital signal value of amount is higher than alarm signal setting value, alarms, and controls sound-light alarm especially by bluetooth radio module 4
Module is opened, and warning message is fed back to operating personnel.
It is referring to fig. 4 a kind of flow chart of the direct current electricity-testing method based on MEMS electric-field sensor of the application.
A kind of direct current electricity-testing method based on MEMS electric-field sensor, the direct current electrical verification based on MEMS electric-field sensor
Method includes:
Direct current electrical verification system based on MEMS electric-field sensor carries out self-test, and self-test is by carrying out in next step, otherwise, carries out
System reports an error；
The electrostatic field of the measurement DC power transmission line of MEMS electric-field sensor 1；
Signal processing module 2 handles the electric signal that the MEMS electric-field sensor 1 obtains；
Treated that signal is sent to operating personnel for the STM32 central processing control module 3 for bluetooth radio module 4
Terminal device in, and set alarm signal setting value and the signal processing mould according to interior by STM32 central processing control module 3
The output electric signal of block 2 compares, and the output electric signal of the signal processing module 2 is more than the alarm signal setting value
Afterwards, it performs the next step, otherwise alarm free responds；
The STM32 central processing control module 3 controls the sound and light alarm module 5 by the bluetooth radio module 4
Electric prompting is carried out.
From the above technical scheme, this application provides a kind of direct current electrical verification system based on MEMS electric-field sensor and
Method, which includes MEMS electric-field sensor 1, signal processing module 2, STM32 central processing control module 3, bluetooth is wireless
Module 4, sound and light alarm module 5 and power module 6；The MEMS electric-field sensor 1 is used to measure the electrostatic of DC power transmission line
?；The MEMS electric-field sensor 1 is electrically connected by the signal processing module 2 and the STM32 central processing control module 3
It connects；The signal processing module 2 is used to handle the MEMS electric-field sensor 1 and is removed the digital signal of interference volume；It is described
Signal processing module 2 is electrically connected by the STM32 central processing control module 3 with the bluetooth radio module 4；It is described
STM32 central processing control module 3 is electrically connected by the bluetooth radio module 4 with the sound and light alarm module 5.Pass through signal
Processing module 2 is used to handle the MEMS electric-field sensor 1 and is removed the digital signal of interference volume, avoids due to direct current transportation
Electromagnetic interference on circuit generates erroneous judgement；And STM32 central processing control module realizes the acquisition to electric field signal, passes through
The realization of acousto-optic warning module has electric prompting, simplifies the Operating Complexity of electrical verification operation, it can be achieved that accurately detecting the band of DC equipment
Electricity condition and alarm, with easy to operate, interference resistance is strong.
Further, the signal processing module 2 includes I/V converter 7, voltage follower 8, lock-in amplifier 9 and A/D
Converter 10；
The induced current that the I/V converter 7 is used to generate induction electrode in the MEMS electric-field sensor 1 receives simultaneously
It is converted into the voltage signal with frequency variation；
The voltage follower 8 is used to the same frequency voltage signal that I/V converter 7 exports being converted to low-resistance by high impedance
Anti- voltage signal；
The lock-in amplifier 9 is used to that voltage signal that the voltage follower 8 exports to be set gain and amplified as interior,
And responded by same frequency or frequency multiplication, with the noise component of phase, interference volume is removed, voltage-measurable signal is obtained；
Survey signal progress analog-to-digital conversion of the A/D converter 10 for exporting the lock-in amplifier 9 is adopted
Collect the value of desired signal.
In the present embodiment, I/V converter 7 carries out electric current, the conversion between voltage signal, by I/V converter 7 by MEMS
The induced current that induction electrode generates in electric-field sensor 1 is received and converted to the piezoelectric voltage signal with frequency variation.Voltage follow
8 output voltage of device is identical with input voltage, that is the voltage amplification factor perseverance of voltage follower 8 is less than and close to 1.It is logical
The same frequency voltage signal that I/V converter 7 exports is converted to low-impedance voltage signal by high impedance by overvoltage follower 8.
Lock-in amplifier 9 is the amplifier that a kind of pair of alternating signal carries out phase sensitive detection, it has phase using with measured signal
The reference signal of same frequency and identical phase relation is as benchmark, only to measured signal itself and those and reference signal
There is response with frequency (or frequency multiplication), with the noise component of phase.Therefore, it can significantly inhibit useless noise, improve detection letter
It makes an uproar ratio.Also, the gain set by lock-in amplifier 9 puts input by the signal amplitude that voltage follower exports
Greatly, be removed interference volume surveys signal.
Finally, it is adopted by the signal progress analog-to-digital conversion of surveying that A/D converter 10 exports the lock-in amplifier 9
Collect the value of desired signal.Signal processing module 2 is changed into removing for electric field signal of ac is inputted by Signal Conversion & Processing
Interference volume surveys digital signal.
Further, the STM32 central processing control module 3 is led to by serial ports with the bluetooth radio module 4
Letter connection.
In the present embodiment, serial ports, as serial communication interface are the expansion interfaces by serial communication mode, can be incited somebody to action
One ground sequence of data transmits, and communication line is simple, as long as two-way communication can be realized in a pair of of transmission line, reduces the cost,
Suitable and telecommunication.
Further, the STM32 central processing control module 3 is used for the electricity exported according to the signal processing module 2
Signal is handled, and is controlled the sound and light alarm module 5 and carried out electric prompting, and cruise duration was up to 23 hours.
In the present embodiment, 3 cruise duration of STM32 central processing control module up to 23 hours, is realized to input by believing
Number processing module 2 be removed interference volume digital signal and be output to the signal of bluetooth radio module 4 up to 23 hours
It outputs and inputs.
From the above technical scheme, this application provides a kind of direct current electrical verification system based on MEMS electric-field sensor and
Method, which includes MEMS electric-field sensor 1, signal processing module 2, STM32 central processing control module 3, bluetooth is wireless
Module 4, sound and light alarm module 5 and power module 6；The MEMS electric-field sensor 1 is used to measure the electrostatic of DC power transmission line
?；The MEMS electric-field sensor 1 is electrically connected by the signal processing module 2 and the STM32 central processing control module 3
It connects；The signal processing module 2 is used to handle the MEMS electric-field sensor 1 and is removed the digital signal of interference volume；It is described
Signal processing module 2 is electrically connected by the STM32 central processing control module 3 with the bluetooth radio module 4；It is described
STM32 central processing control module 3 is electrically connected by the bluetooth radio module 4 with the sound and light alarm module 5.Pass through signal
Processing module 2 is used to handle the MEMS electric-field sensor 1 and is removed the digital signal of interference volume, avoids due to direct current transportation
Electromagnetic interference on circuit generates erroneous judgement；And STM32 central processing control module realizes the acquisition to electric field signal, passes through
The realization of acousto-optic warning module has electric prompting, simplifies the Operating Complexity of electrical verification operation, it can be achieved that accurately detecting the band of DC equipment
Electricity condition and alarm, with easy to operate, interference resistance is strong.
Similar portion cross-reference between embodiment provided by the present application, specific embodiment provided above is only
It is several examples under the total design of the application, does not constitute the restriction of the application protection scope.For those skilled in the art
For member, any other embodiment expanded without creative efforts according to application scheme all belongs to
In the protection scope of the application.
Claims (8)
1. a kind of direct current electrical verification system based on MEMS electric-field sensor, which is characterized in that described to be based on MEMS electric-field sensor
Direct current electrical verification system include MEMS electric-field sensor (1), signal processing module (2), STM32 central processing control module (3),
Bluetooth radio module (4), sound and light alarm module (5) and power module (6)；
The MEMS electric-field sensor (1), the signal processing module (2), the STM32 central processing control module (3), institute
State bluetooth radio module (4), the sound and light alarm module (5) is electrically connected with the power module (6)；
The MEMS electric-field sensor (1) is used to measure the electrostatic field of DC power transmission line；
The MEMS electric-field sensor (1) is electrically connected with the signal processing module (2)；
The signal processing module (2) is used to handle the MEMS electric-field sensor (1) and is removed the digital signal of interference volume；
The MEMS electric-field sensor (1) passes through the signal processing module (2) and the STM32 central processing control module
(3) it is electrically connected；
The signal processing module (2) passes through the STM32 central processing control module (3) and the bluetooth radio module (4)
Electrical connection；
The STM32 central processing control module (3) passes through the bluetooth radio module (4) and the sound and light alarm module (5)
Electrical connection；
Alarm signal setting value is set in the STM32 central processing control module (3)；
The STM32 central processing control module (3) is used for the number of interference volume that the signal processing module (2) is removed
Signal is handled；
The bluetooth radio module (4) is used for that treated that signal is sent to work by the STM32 central processing control module (3)
In the terminal device of industry personnel；
The STM32 central processing control module (3) is also used to control the sound-light alarm by the bluetooth radio module (4)
Module (5) has carried out electric prompting.
2. the direct current electrical verification system according to claim 1 based on MEMS electric-field sensor, which is characterized in that the signal
Processing module (2) includes I/V converter (7), voltage follower (8), lock-in amplifier (9) and A/D converter (10)；
The induced current that the I/V converter (7) is used to generate induction electrode in the MEMS electric-field sensor (1) receives simultaneously
It is converted into the voltage signal with frequency variation；
The voltage follower (8) is used to the same frequency voltage signal that I/V converter (7) export being converted to low-resistance by high impedance
Anti- voltage signal；
The lock-in amplifier (9) is used to that voltage signal that the voltage follower (8) export to be set gain and amplified as interior,
And responded by same frequency or frequency multiplication, with the noise component of phase, interference volume is removed, voltage-measurable signal is obtained；
Survey signal progress analog-to-digital conversion of the A/D converter (10) for exporting the lock-in amplifier (9) is adopted
Collect the value of desired signal.
3. the direct current electrical verification system according to claim 1 based on MEMS electric-field sensor, which is characterized in that described
STM32 central processing control module (3) is communicatively coupled by serial ports with the bluetooth module (4).
4. the direct current electrical verification system according to claim 1 based on MEMS electric-field sensor, which is characterized in that described
STM32 central processing control module (1) is controlled for being handled according to the electric signal that the signal processing module (2) export
It makes the sound and light alarm module (5) and has carried out electric prompting, cruise duration was up to 23 hours.
5. a kind of direct current electricity-testing method based on MEMS electric-field sensor, which is characterized in that described to be based on MEMS electric-field sensor
Direct current electricity-testing method include:
Direct current electrical verification system based on MEMS electric-field sensor carries out self-test, and self-test is by carrying out in next step, otherwise, carries out system
It reports an error；
The electrostatic field of MEMS electric-field sensor (1) measurement DC power transmission line；
The electric signal that signal processing module (2) the processing MEMS electric-field sensor (1) obtains；
For the STM32 central processing control module (3), treated, and signal is sent to operating personnel to bluetooth radio module (4)
Terminal device in, and by STM32 central processing control module (3) according in set alarm signal setting value and the signal processing
The output electric signal of module (2) compares, and the output electric signal of the signal processing module (2) is more than that the alarm signal is set
It after definite value, performs the next step, otherwise alarm free responds；
The STM32 central processing control module (3) controls the sound and light alarm module by the bluetooth radio module (4)
(5) electric prompting has been carried out.
6. the direct current electricity-testing method according to claim 5 based on MEMS electric-field sensor, which is characterized in that the signal
Processing module (2) handles the electric signal that the MEMS electric-field sensor (1) obtains
The induced current that induction electrode in the MEMS electric-field sensor (2) generates is received and is converted by the I/V converter (7)
For the voltage signal of same frequency variation；
The voltage follower (8) is converted to same frequency voltage signal that I/V converter (7) exports by high impedance low-impedance
Voltage signal；
Voltage signal that the voltage follower (8) exports is set gain and is amplified by the lock-in amplifier (9) as interior, and will
Same frequency or frequency multiplication, the noise component response with phase, remove interference volume, obtain voltage-measurable signal；
The signal progress analog-to-digital conversion of surveying that the A/D converter (10) exports the lock-in amplifier (9) obtains acquisition institute
Need the value of signal.
7. the direct current electricity-testing method according to claim 5 based on MEMS electric-field sensor, which is characterized in that described
STM32 central processing control module (3) is communicatively coupled by serial ports with the bluetooth radio module (4).
8. the direct current electricity-testing method according to claim 5 based on MEMS electric-field sensor, which is characterized in that described
STM32 central processing control module (3) is handled according to the electric signal that the signal processing module (2) exports, and passes through institute
It states bluetooth radio module (4) control sound and light alarm module (5) and has carried out electric prompting, cruise duration was up to 23 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910089384.1A CN109521258A (en) | 2019-01-30 | 2019-01-30 | A kind of direct current electrical verification system and method based on MEMS electric-field sensor |
Applications Claiming Priority (1)
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110887989A (en) * | 2019-12-06 | 2020-03-17 | 国家电网有限公司 | Non-contact electricity testing system applied to power transmission line |
| CN114113812A (en) * | 2021-11-23 | 2022-03-01 | 清华大学 | Cantilever type micro electric field sensor driven by electric field force |
| WO2023134555A1 (en) * | 2022-01-14 | 2023-07-20 | 深圳市中明科技股份有限公司 | Electrostatic field detection apparatus based on wireless transmission, and wireless power supply system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201607477U (en) * | 2010-03-10 | 2010-10-13 | 国网电力科学研究院 | 800kV ultra-high voltage direct-current non-contact multichannel range-finding type electroscope |
| CN101876673A (en) * | 2010-05-27 | 2010-11-03 | 国网电力科学研究院 | Extreme high voltage direct-current non-contact distance-measurement electricity-testing method |
| CN106597065A (en) * | 2016-12-10 | 2017-04-26 | 国网浙江省电力公司金华供电公司 | MEMS non-contact high-voltage direct current electroscope |
| CN107918045A (en) * | 2018-01-04 | 2018-04-17 | 中国电力科学研究院有限公司 | A kind of UHV transmission line non-contact type electricity checking system and method |
| CN207882335U (en) * | 2018-01-04 | 2018-09-18 | 中国电力科学研究院有限公司 | A kind of UHV transmission line non-contact type electricity checking system |
| CN207882336U (en) * | 2018-01-04 | 2018-09-18 | 中国电力科学研究院有限公司 | A kind of UHV transmission line non-contact type electricity checking system |
-
2019
- 2019-01-30 CN CN201910089384.1A patent/CN109521258A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201607477U (en) * | 2010-03-10 | 2010-10-13 | 国网电力科学研究院 | 800kV ultra-high voltage direct-current non-contact multichannel range-finding type electroscope |
| CN101876673A (en) * | 2010-05-27 | 2010-11-03 | 国网电力科学研究院 | Extreme high voltage direct-current non-contact distance-measurement electricity-testing method |
| CN106597065A (en) * | 2016-12-10 | 2017-04-26 | 国网浙江省电力公司金华供电公司 | MEMS non-contact high-voltage direct current electroscope |
| CN107918045A (en) * | 2018-01-04 | 2018-04-17 | 中国电力科学研究院有限公司 | A kind of UHV transmission line non-contact type electricity checking system and method |
| CN207882335U (en) * | 2018-01-04 | 2018-09-18 | 中国电力科学研究院有限公司 | A kind of UHV transmission line non-contact type electricity checking system |
| CN207882336U (en) * | 2018-01-04 | 2018-09-18 | 中国电力科学研究院有限公司 | A kind of UHV transmission line non-contact type electricity checking system |
Non-Patent Citations (1)
| Title |
|---|
| 朱荣俊 等: "基于蓝牙模块的新型非接触输电线路验电系统的设计", 《山东工业技术》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110887989A (en) * | 2019-12-06 | 2020-03-17 | 国家电网有限公司 | Non-contact electricity testing system applied to power transmission line |
| CN114113812A (en) * | 2021-11-23 | 2022-03-01 | 清华大学 | Cantilever type micro electric field sensor driven by electric field force |
| CN114113812B (en) * | 2021-11-23 | 2022-11-18 | 清华大学 | Cantilever type micro electric field sensor driven by electric field force |
| WO2023134555A1 (en) * | 2022-01-14 | 2023-07-20 | 深圳市中明科技股份有限公司 | Electrostatic field detection apparatus based on wireless transmission, and wireless power supply system |
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