CN207946472U - A kind of power frequency electric field measuring system - Google Patents
A kind of power frequency electric field measuring system Download PDFInfo
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- CN207946472U CN207946472U CN201820119358.XU CN201820119358U CN207946472U CN 207946472 U CN207946472 U CN 207946472U CN 201820119358 U CN201820119358 U CN 201820119358U CN 207946472 U CN207946472 U CN 207946472U
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Abstract
The utility model discloses a kind of power frequency electric field measuring systems, including：The measurement end and receiving terminal of wireless transmission communication can be carried out, measurement end includes：Electric field signal acquisition module, for being acquired to electric field signal using detection probe；Signal-regulated kinase, for the electric field signal of acquisition to be carried out enhanced processing after difference processing is converted into first voltage signal, obtain second voltage signal and is sent to MCU processing modules；MCU processing modules obtain electric field digital signal, and electric field digital signal is sent to MCU control module through wireless sending module and wireless receiving module for carrying out analog-to-digital conversion process to the second voltage signal；Receiving terminal includes：Wireless receiving module, MCU control module, display module, data memory module and power supply module, MCU control module carry out real-time display for the electric field digital signal to be sent to display module, and are sent to data memory module and are stored；Power supply module, for providing power supply support for receiving terminal.
Description
Technical field
The utility model is related to technical field of electric field measurement, and more particularly, to a kind of power frequency electric field measuring system.
Background technology
Currently, transmission line of electricity surrounding electric field is complicated, construction conditions are harsh, and electric field environment has personal shadow to surrounding resident
It rings, circuit overhauls extremely complex danger, expends great manpower and financial resources.Successively develop a variety of electric field measurements both at home and abroad thus
Device is monitored electric field strength, can directly measure transmission line of electricity surrounding electric field intensity, implements effective monitoring and analysis,
Reliable means and foundation are provided for transmission line safety.Existing field measurement device is broadly divided into the two kinds of surveys of machinery and optics
Device is measured, optical measuring device accuracy of detection is high, and expensive, standard machinery formula price is low, but measuring device volume is bigger than normal, work(
Consumption is high, and measurement accuracy is difficult to reach requirement.
Invention content
The utility model proposes a kind of power frequency electric field measuring system, with solve existing field measurement device volume it is big,
It is unable to real-time Transmission and the low problem of measurement accuracy.
To solve the above-mentioned problems, one side according to the present utility model provides a kind of power frequency electric field measuring system,
It is characterized in that, the system comprises：The measurement end and receiving terminal of wireless transmission communication can be carried out, the measurement end includes：
Electric field signal acquisition module, Signal-regulated kinase, MCU processing modules and wireless sending module, the receiving terminal include：Wirelessly connect
Module, MCU control module, display module, data memory module and power supply module are received,
The electric field signal acquisition module, is connected with the input terminal of Signal-regulated kinase, for utilizing detection probe pair
Electric field signal is acquired, and the electric field signal of acquisition is sent to Signal-regulated kinase；
The Signal-regulated kinase is connected with the input terminal of MCU processing modules, is used for the electric field signal of the acquisition
It is converted to voltage signal and is sent to MCU processing modules；
The MCU processing modules, for voltage signal progress analog-to-digital conversion process, obtaining electric field digital signal,
And the electric field digital signal is sent to MCU control module through wireless sending module and wireless receiving module；
The MCU control module, respectively with the output end of wireless receiving module and display module and data memory module
Input terminal be connected, carry out real-time display for the electric field digital signal to be sent to display module, and by the electricity
Field digital signal is sent to data memory module and is stored；
The power supply module, for providing power supply support for receiving terminal, the power supply module includes：Lithium battery, charging electricity
Road and power circuit.
Preferably, wherein the Signal-regulated kinase includes：Electric-field sensor, sine-wave generator, gain controller, inspection
Slowdown monitoring circuit, differential conversion circuit and signal amplification circuit,
The sine-wave generator and gain controller co- controlling generate the sinewave output of amplitude, frequency stabilization, drive
Electromotive field sensor does periodic mechanical motion, and it is proportional that electric-field sensor generates the external electrical field field strength detected with detection circuit
Current signal, the current signal is amplified processing through signal amplification circuit after difference IV conversion circuit, obtains electricity
Pressure signal is simultaneously sent to MCU processing modules.Preferably, wherein the lithium battery control chip in the power circuit uses T1 power supplys
Managing chip, for realizing lithium battery precharge, the control of fast charge and constant-voltage charge three phases charging voltage and electric current, together
When can detect battery temperature, battery temperature be more than preset temperature threshold when, using corresponding safeguard measure.
Preferably, wherein the circuit board around the wireless sending module and wireless receiving module is used by scratching Copper treatment
In preventing shield reception signal.
Preferably, wherein the system also includes：Host computer is connect with the receiving terminal by USB, for passing through MCU
The electric field digital signal that data memory module stores is sent to host computer and carries out analyzing processing by control module.
Preferably, wherein the wireless transmission communication mode is：Bluetooth communication.
Preferably, it wherein the MCU control module carries real-time clock, and is supplied for the real-time clock using button cell
Electricity ensures the normal operation of real-time clock.
The utility model provides a kind of power frequency electric field measuring system, including：It can carry out the measurement of wireless transmission communication
End and receiving terminal, measurement end include：Electric field signal acquisition module, Signal-regulated kinase, MCU processing modules and wireless transmission mould
Block, receiving terminal include：Wireless receiving module, MCU control module, display module, data memory module and power supply module.Measurement end
With receiving terminal by wirelessly transmitting data, realize that the real-time Transmission of electric field data is shown.When carrying out electric field measurement, detection is utilized
Probe is acquired electric field signal；The electric field signal of the acquisition is converted into voltage signal using Signal-regulated kinase；Profit
Analog-to-digital conversion process carried out to the voltage signal with MCU processing modules, obtains electric field digital signal, and by the electric field number
Word signal is sent to MCU control module through wireless sending module and wireless receiving module；And utilize MCU control module by the electricity
Field digital signal is sent to display module and carries out real-time display, and the electric field digital signal is sent to data memory module
It is stored.The utility model utilizes electric field of the Signal-regulated kinase to acquisition by detaching measurement end and receiving terminal
Signal carries out difference processing, reduces work mould signal interference, improves the accuracy of measurement；Meanwhile, it is capable to which electric field number is believed
It number is stored, analytical judgment is rapidly performed by for the quality to transmission line of electricity.
Description of the drawings
By reference to the following drawings, the illustrative embodiments of the utility model can be more fully understood by：
Fig. 1 is the schematic diagram according to the power frequency electric field measuring system 100 of the utility model embodiment；
Fig. 2 is the structural schematic diagram according to the Signal-regulated kinase of the utility model embodiment；
Fig. 3 is the structural schematic diagram according to the receiving terminal of the utility model embodiment；And
Fig. 4 is the structural schematic diagram according to the power frequency electric field measuring system of the utility model embodiment.
Specific implementation mode
The illustrative embodiments of the utility model are introduced referring now to the drawings, however, the utility model can use many
Different forms is implemented, and is not limited to the embodiment described herein, and to provide these embodiments be in order at large and complete
Open the utility model entirely, and fully convey the scope of the utility model to person of ordinary skill in the field.For
Term in the illustrative embodiments being illustrated in the accompanying drawings is not the restriction to the utility model.In the accompanying drawings, identical
Cells/elements use identical reference numeral.
Unless otherwise indicated, term (including scientific and technical terminology) used herein has person of ordinary skill in the field
It is common to understand meaning.Further it will be understood that with the term that usually used dictionary limits, should be understood as and its
The context of related field has consistent meaning, and is not construed as Utopian or too formal meaning.
Fig. 1 is the structural schematic diagram according to the power frequency electric field measuring system 100 of the utility model embodiment.Such as Fig. 1 institutes
Show, in the power frequency electric field measuring system 100 that the utility model embodiment provides, including：It can carry out wireless transmission communication
Measurement end and receiving terminal, measurement end include：Electric field signal acquisition module, Signal-regulated kinase, MCU processing modules and wireless transmission
Module, receiving terminal include：Wireless receiving module, MCU control module, display module, data memory module and power supply module.It measures
End and receiving terminal realize that the real-time Transmission of electric field data is shown by wirelessly transmitting data.The utility model is by by measuring section
It is detached with receiving terminal, and difference processing is carried out to the electric field signal of acquisition, reduced work mould signal interference, improve measurement
Accuracy；Meanwhile, it is capable to which electric field digital signal is stored, being rapidly performed by analysis for the quality to transmission line of electricity sentences
It is disconnected.Include according to the power frequency electric field measuring system 100 of the utility model embodiment：It can carry out the measurement of wireless transmission communication
End 101 and receiving terminal 102, the measurement end include：Electric field signal acquisition module 1011, Signal-regulated kinase 1012, MCU processing
Module 1013 and wireless sending module 1014, the receiving terminal 102 include：Wireless receiving module 1021, MCU control module
1022, display module 1023, data memory module 1024 and power supply module 1025.
Preferably, wherein the wireless transmission communication mode is：Bluetooth communication.In the embodiment of the utility model,
Measurement end includes mainly detection probe, Signal-regulated kinase, MCU processing modules and bluetooth wireless sending module.It is practical to measure
When, detection probe is placed into electric field environment to be measured, detection probe does not contact other objects, and measurement end starts after power supply
Work.
Preferably, the electric field signal acquisition module 1011, is connected with the input terminal of Signal-regulated kinase 1012, is used for
Electric field signal is acquired using detection probe, and the electric field signal of acquisition is sent to Signal-regulated kinase 1012.
Preferably, the Signal-regulated kinase 1012 is connected with the input terminal of MCU processing modules 1013, is used for institute
The electric field signal for stating acquisition is converted to voltage signal and is sent to MCU processing modules 1013.
Preferably, wherein the Signal-regulated kinase includes：Electric-field sensor, sine-wave generator, gain controller, inspection
Slowdown monitoring circuit, difference IV conversion circuit and signal amplification circuit, the sine-wave generator and the production of gain controller co- controlling
The sinewave output of raw amplitude, frequency stabilization, driving electric field sensor do periodic mechanical motion, and electric-field sensor is generated with inspection
The proportional current signal of external electrical field field strength of slowdown monitoring circuit detection, the current signal is after difference IV conversion circuit through letter
Number amplifying circuit is amplified processing, obtains voltage signal and is simultaneously sent to MCU processing modules.
Fig. 2 is the structural schematic diagram according to the Signal-regulated kinase of the utility model embodiment.As shown in Fig. 2, sinusoidal
Wave producer and gain controller co- controlling generate the sinewave output of amplitude, frequency stabilization, and driving electric field sensor does week
The mechanical movement of phase property, electric-field sensor are generated with the proportional current signal of external electrical field field strength, this signal turns by difference IV
It changes electricity and is converted into voltage signal, exported to receiving terminal using signal amplification circuit.
Preferably, the MCU processing modules 1013 obtain electricity for carrying out analog-to-digital conversion process to the voltage signal
Field digital signal, and the electric field digital signal is sent to MCU through wireless sending module 1014 and wireless receiving module 1021
Control module 1022.Preferably, wherein the circuit board around the wireless sending module and wireless receiving module is by scratching at copper
Reason, for preventing shields reception signal.
Preferably, the MCU control module 1022, respectively with the output end and display module of wireless receiving module 1021
1023 are connected with the input terminal of data memory module 1024, for the electric field digital signal to be sent to display module 1023
Real-time display is carried out, and the electric field digital signal is sent to data memory module 1024 and is stored.
Preferably, it wherein the MCU control module carries real-time clock, and is supplied for the real-time clock using button cell
Electricity ensures the normal operation of real-time clock.
Preferably, the power supply module 1025, for providing power supply support for receiving terminal, the power supply module includes：Lithium
Battery, charging circuit and power circuit.
Preferably, wherein the lithium battery control chip in the power circuit uses T1 power management chips, for realizing
Lithium battery precharge, the control of fast charge and constant-voltage charge three phases charging voltage and electric current, while battery temperature can be detected
Degree, when battery temperature is more than preset temperature threshold, using corresponding safeguard measure.
Preferably, wherein the system also includes：Host computer is connect with the receiving terminal by USB, for passing through MCU
The electric field digital signal that data memory module stores is sent to host computer and carries out analyzing processing by control module.
The hand-held receiving terminal of the utility model embodiment includes mainly：Battery, battery tray, screen, button, circuit board,
Bluetooth antenna, charger and plastic shell.Battery tray is fixed on plastic shell by anchor ear, circuit board is placed on by battery
Side is screwed while being added insulating tape processing, prevents short circuit, screen from being fixed using holder, and in plastic shell front
Trepanning allows screen to highlight.Button is connected to by external connection on circuit board, and indigo plant is placed in plastic shell side trepanning
Tooth wireless transmission, button and charger matching interface.
Fig. 3 is the structural schematic diagram according to the receiving terminal of the utility model embodiment.As shown in figure 3, hand-held receiving terminal
The charger of 9V is selected, 9V voltage outputs are to circuit board, and by lithium battery charge controlling chip, the voltage for generating 8.4V gives lithium electricity
Pond is charged, and 9V chargers must be able to provide at least 1A electric currents, reduce the lithium battery charging time.Lithium battery controls chip using TI electricity
Source control chip is realized lithium battery precharge, fast charge, constant-voltage charge three phases charging voltage, current control, while can be detected
Battery temperature, when battery temperature is excessively high, using corresponding safeguard measure.The lithium battery uses 18650 double series, carries
For the voltage of 7.4V, electricity requires, in 2000mAh or more, to ensure power-on time.Lithium battery discharge voltage is controlled, when up to
To discharge voltage threshold limit value, system is automatically closed, even if being opened by key control system, in this situation, cannot be started up, and
Indicator light shows that battery capacity is too low.Key control circuit includes the twitter circuit that disappears, and realizes a key control switching on and shutting down, when measuring,
It is powered on by key control system, when that need not measure, button is closed system and shown.After system electrification, power control unit control
5V, the power supply of 3.3V are generated, 5V is supplied to screen, 3.3V to be supplied to MCU governor circuits and bluetooth receiving module.Bluetooth receives mould
Block adds antenna, and when measuring, adjustment aerial angle, which extends, receives distance.And bluetooth receiving module is welded to PCB circuit board
On, it carries out scratching Copper treatment around bluetooth receiving module, reduces ground shielding.When system electrification, bluetooth receiving module will receive
Data timing sends MCU governor circuits to.MCU governor circuits carry real-time clock (Real-Time Clock, RTC), for reading
Go out current time value and RTC is powered using the button cell of CR1220 etc, in system power failure, can still carry out
Timing.Screen selects the preferable OLED of brightness, is used for real-time display time and corresponding electric field intensity value, under intense light conditions still
It can normally read.MCU governor circuits pass through secure digital input-output card (SecureDigital Input and Output
Card, SDIO) read-write mode and add file system, by data with FAT32 stored in file format to data memory module.
MCU governor circuits can be communicated by USB with host computer, and the data that data memory module stores are read
Position machine carries out data analysis and shows.
Fig. 4 is the structural schematic diagram according to the power frequency electric field measuring system of the utility model embodiment.As shown in figure 4,
The power frequency electric field measuring system of the utility model embodiment includes：Measurement end and hand-held receiving terminal two parts measure end part
Detection probe acquisition electric field signal is first passed around, it is defeated that electric field signal is then converted to voltage signal using signal conditioning circuit
Go out, then the tested electricity for being stored tested electric field value by Bluetooth transmission to hand-held receiving terminal, hand-held receiving terminal by MCU processing circuits
In field value and real-time display to screen.Hand-held receiving terminal uses the battery powered of 18650 double series.Measurement end includes mainly：
Detection probe, signal conditioning circuit, MCU processing circuits and bluetooth transmission circuit.When practical measurement, detection probe is placed into
In electric field environment to be measured, detection probe does not contact other objects, and measurement end is started to work after power supply.
The utility model is described by reference to a small amount of embodiment.However, it is known in those skilled in the art,
As defined by subsidiary Patent right requirement, in addition to the utility model other embodiments disclosed above are equally fallen
In the scope of the utility model.
Normally, all terms used in the claims are all solved according to them in the common meaning of technical field
It releases, unless in addition clearly being defined wherein.All references " one/described/be somebody's turn to do [device, component etc.] " are all opened ground
It is construed at least one of described device, component etc. example, unless otherwise expressly specified.Any method disclosed herein
Step need not all be run with disclosed accurate sequence, unless explicitly stated otherwise.
Claims (7)
1. a kind of power frequency electric field measuring system, which is characterized in that the system comprises：It can carry out the measurement of wireless transmission communication
End and receiving terminal, the measurement end include：Electric field signal acquisition module, Signal-regulated kinase, MCU processing modules and wireless transmission
Module, the receiving terminal include：Wireless receiving module, MCU control module, display module, data memory module and power supply module,
The electric field signal acquisition module, is connected with the input terminal of Signal-regulated kinase, for utilizing detection probe to electric field
Signal is acquired, and the electric field signal of acquisition is sent to Signal-regulated kinase；
The Signal-regulated kinase is connected with the input terminal of MCU processing modules, for converting the electric field signal of the acquisition
It is sent to MCU processing modules for voltage signal；
The MCU processing modules obtain electric field digital signal, and will for carrying out analog-to-digital conversion process to the voltage signal
The electric field digital signal is sent to MCU control module through wireless sending module and wireless receiving module；
The MCU control module, it is defeated with the output end of wireless receiving module and display module and data memory module respectively
Enter end to be connected, carries out real-time display for the electric field digital signal to be sent to display module, and by the electric field number
Word signal is sent to data memory module and is stored；
The power supply module, for providing power supply support for receiving terminal, the power supply module includes：Lithium battery, charging circuit and
Power circuit.
2. system according to claim 1, which is characterized in that the Signal-regulated kinase includes：Electric-field sensor, sine
Wave producer, gain controller, detection circuit, differential conversion circuit and signal amplification circuit,
The sine-wave generator and gain controller co- controlling generate the sinewave output of amplitude, frequency stabilization, driving electricity
Field sensor does periodic mechanical motion, the proportional electricity of the external electrical field field strength that electric-field sensor generation is detected with detection circuit
Signal is flowed, the current signal is amplified processing after difference IV conversion circuit through signal amplification circuit, obtains voltage letter
Number and be sent to MCU processing modules.
3. system according to claim 1, which is characterized in that the lithium battery control chip in the power circuit uses T1
Power management chip, for realizing lithium battery precharge, the control of fast charge and constant-voltage charge three phases charging voltage and electric current
System, while battery temperature can be detected, when battery temperature is more than preset temperature threshold, using corresponding safeguard measure.
4. system according to claim 1, which is characterized in that around the wireless sending module and wireless receiving module
Circuit board for preventing shields reception signal by scratching Copper treatment.
5. system according to claim 1, which is characterized in that the system also includes：Host computer is logical with the receiving terminal
USB connections are crossed, are carried out for the electric field digital signal that data memory module stores to be sent to host computer by MCU control module
Analyzing processing.
6. system according to claim 1, which is characterized in that the wireless transmission communication mode is：Bluetooth communication.
7. system according to claim 1, which is characterized in that the MCU control module carries real-time clock, and uses knob
It detains battery to power for the real-time clock, ensures the normal operation of real-time clock.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820119358.XU CN207946472U (en) | 2018-01-24 | 2018-01-24 | A kind of power frequency electric field measuring system |
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| CN201820119358.XU CN207946472U (en) | 2018-01-24 | 2018-01-24 | A kind of power frequency electric field measuring system |
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| CN207946472U true CN207946472U (en) | 2018-10-09 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110988503A (en) * | 2019-12-30 | 2020-04-10 | 南京弘毅电气自动化有限公司 | Distribution line power frequency electric field wireless measuring device and measurement correcting method |
| CN113933608A (en) * | 2021-11-12 | 2022-01-14 | 国网山东省电力公司高密市供电公司 | Power frequency electric field measurement system and working method |
-
2018
- 2018-01-24 CN CN201820119358.XU patent/CN207946472U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110988503A (en) * | 2019-12-30 | 2020-04-10 | 南京弘毅电气自动化有限公司 | Distribution line power frequency electric field wireless measuring device and measurement correcting method |
| CN113933608A (en) * | 2021-11-12 | 2022-01-14 | 国网山东省电力公司高密市供电公司 | Power frequency electric field measurement system and working method |
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