CN204007861U - GIS cabinet on-line detecting system based on vibration transducer, ZigBee wireless module - Google Patents
GIS cabinet on-line detecting system based on vibration transducer, ZigBee wireless module Download PDFInfo
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Abstract
基于振动传感器、ZigBee无线模块的GIS柜在线检测系统，包括：安装于GIS外壳上的多个振动检测模块、数据汇集中心模块、监控电脑，多个振动检测模块通过无线网络连接数据汇集中心模块，数据汇集中心模块连接监控电脑，每一个振动检测模块包括加速度传感器，加速度传感器连接前置放大电路，前置放大电路分别通过三个不同频带的带通滤波电路。每一个带通滤波电路均对应连接一个二级放大电路，二级放大电路连接第一单片机模块。所述数据汇集中心模块包括第二单片机模块，第二单片机模块通过RS-485总线连接监控电脑。本实用新型在线检测系统，达到提前预警、提前维护、延长GIS使用寿命、防止事故发生的目的。
GIS cabinet online detection system based on vibration sensor and ZigBee wireless module, including: multiple vibration detection modules installed on the GIS shell, data collection center module, monitoring computer, multiple vibration detection modules connected to data collection center module through wireless network, The data collection center module is connected to the monitoring computer, each vibration detection module includes an acceleration sensor, the acceleration sensor is connected to a preamplifier circuit, and the preamplifier circuit passes through three bandpass filter circuits of different frequency bands. Each band-pass filter circuit is correspondingly connected with a secondary amplifying circuit, and the secondary amplifying circuit is connected with the first single-chip microcomputer module. The data collection center module includes a second single-chip microcomputer module, and the second single-chip microcomputer module is connected to a monitoring computer through an RS-485 bus. The online detection system of the utility model achieves the purposes of early warning, early maintenance, prolonging the service life of the GIS, and preventing accidents.
Description
Technical field
A kind of GIS cabinet on-line detecting system based on vibration transducer, ZigBee wireless module of the utility model, relates to gas insulated electric apparatus detection field.
Background technology
Gas insulated electric apparatus is adopted more and more widely owing to having high operational reliability.Along with the electric pressure of electrical network improves constantly, require electrical equipment volume little, reliable, be convenient to safeguard.Gas-insulated combined electric is because having these advantages, and is popular with the masses of users.In order to ensure the safe operation of gas-insulated combined electric, extend as far as possible the time between overhauls(TBO), the method for the inner latency fault of research prediction GIS is necessary.The inner latency fault of GIS often can be followed the generation of vibration, and main vibration source is: conductive impurity, as: metal fillings, line and burr etc.These impurity can floatingly be beated or corona occurs under high electric field action, thereby cause the vibration of shell.Vibration also has mechanical fault to cause vibration, and as loosening in links such as GIS inside screws, abnormal deciliter grade of switch all can cause vibration.
In prior art, the detection method that detects GIS cabinet internal vibration fault has:
1), detect arc light intensity with the Fibre Optical Sensor of imbedding GIS cabinet inside;
2), detect to measure GIS cabinet shelf depreciation by electric parameters;
3), decompose composition with the discharge gas that causes of chemical analysis analysis.
Method 1) be to detect electric arc by Fibre Optical Sensor, can directly judge position and intensity that electric arc occurs, very inconvenient but this method is used, detecting sensor need to be installed to GIS cabinet inside.And Fibre Optical Sensor is expensive, and cannot detect in advance incipient fault, occur simultaneously, fault just can be detected at electric arc often, but late.The method can only detect arc fault.
Method 2) be to detect shelf depreciation by Electric Method, be mainly to detect by detecting the electric parameters such as GIS internal current, voltage, magnetic field, it is relatively convenient that this method is used.Can directly make Current Transformer, voltage transformer (VT), magnetic field sensor detect.But during due to incipient fault, electric current, voltage, changes of magnetic field amount are very small, cause detecting inaccurate, can only detect electric fault.
Method 3) be the gas of analyzing discharge generation with chemical analysis, the method detects sensitiveer, can under very faint discharge scenario, just can detect, can reach the ability giving warning in advance, but chemical method need to be placed on receptacle GIS inside, and analysis method comparison complexity, and incipient fault position that can not accuracy of judgement, the method can only detect discharge fault.
Summary of the invention
for solving the problems of the technologies described above, the utility model provides a kind of GIS cabinet on-line detecting system based on vibration transducer, ZigBee wireless module, by fix multiple vibration detection modules on GIS cabinet shell, form a ZigBee wireless-transmission network, the vibration producing on induction GIS shell, each vibration detection module is sent to data by vibration information with wireless transmission method and collects center module, and data are collected center module and will all vibration detection modules be transferred in computer monitor in the heart.GIS normal vibration waveform is observed at computer monitor center, and the vibration that causes of potential machinery and electric fault.Thereby reach the object that gives warning in advance, safeguards in advance, extends GIS serviceable life, Accident prevention and occur.
The technical scheme that the utility model is taked is:
GIS cabinet on-line detecting system based on vibration transducer, ZigBee wireless module, comprise: the multiple vibration detection modules, the data that are installed on GIS shell are collected center module, monitoring computer, multiple vibration detection modules are collected center module by wireless network connection data, data are collected center module and are connected monitoring computer, each vibration detection module comprises acceleration transducer, acceleration transducer connects pre-amplification circuit, and pre-amplification circuit is respectively by the bandwidth-limited circuit of three different frequency bands.2 ~ 10KHZ bandwidth-limited circuit, 5 ~ 17KHZ bandwidth-limited circuit, 0.25 ~ 1.5KHZ bandwidth-limited circuit, each bandwidth-limited circuit is a second amplifying circuit of corresponding connection all, and second amplifying circuit connects the first one-chip computer module.
Described data are collected center module and are comprised second singlechip module, and second singlechip module connects monitoring computer by RS-485 bus, and described second singlechip module connects LED light, the corresponding vibration detection module of each LED light.
Described the first one-chip computer module is Atmega16 single-chip microcomputer, and Atmega16 single-chip microcomputer connects the first wireless transport module.Described second singlechip module is Atmega128 single-chip microcomputer, and Atmega128 single-chip microcomputer connects the second wireless transport module.
Described acceleration transducer is FUS-40BT/BR vibration acceleration sensor.
Described the first wireless transport module comprises nRF24L01 radio transmitting and receiving chip.Described the second wireless transport module comprises nRF24L01 radio transmitting and receiving chip.
Described pre-amplification circuit comprises AD620 instrument amplifier.
Each bandwidth-limited circuit is connected to form by two amplifier OP37A, resistance, electric capacity, comprises a high-pass filtering circuit and a low-pass filter circuit.
Each second amplifying circuit is connected to form by amplifier OP37A, adjustable resistance, a filter capacitor.
Described data are collected center module and are comprised: key circuit, indicator light circuit, key circuit is made up of button B1, button B2, resistance R 1, resistance R 2, second singlechip module is contact resistance R1 one end, resistance R 2 one end respectively, resistance R 1 other end, resistance R 2 other end ground connection, resistance R 1 one end, resistance R 2 one end connect respectively button B1 one end, button B2 one end, and the button B1 other end, the button B2 other end connect power supply; Indicator light circuit comprises row's type LED lamp U2, and second singlechip module connects row's type LED lamp U2 mono-side, and row's type LED lamp U2 opposite side is respectively by resistance R 3 ~ R12 ground connection.
A kind of GIS cabinet on-line detecting system based on vibration transducer, ZigBee wireless module of the utility model, beneficial effect is as follows:
1), easy to use, multiple vibration detection modules can be directly installed on GIS shell, do not need to change this body structure of GIS.
2), measuring ability is comprehensive, not only can detect electric fault, can also detect mechanical fault, but also can be to have which kind of reason to cause by vibration frequency failure judgement.
3), adopt multiple vibration detection modules, data to collect center module pattern, make each vibration detection module separate, and vibration detection module and data are collected between center module and are adopted wireless mode communication to be connected, and stop the interference of electromagnetic field to information; Remove vibration signal and detected the coupling association between data transmission; Improve accuracy and reliability that vibration signal detects.
Brief description of the drawings
Fig. 1 is the utility model system data transmission structure schematic diagram.
Fig. 2 is the utility model system vibration detection module inner structure schematic diagram.
Fig. 3 is that the utility model system data collects center module inner structure schematic diagram.
Fig. 4 is the utility model system vibration signal pre-amplification circuit figure.
Fig. 5 is the utility model system vibration signal filter circuit figure.
Fig. 6 is the utility model system vibration signal second amplifying circuit figure.
Fig. 7 is the utility model system wireless transmission circuit figure.
Fig. 8 is that the utility model system data collects center module internal circuit diagram.
Embodiment
Principle analysis:
When free conducting particles is metallic impurity, in GIS cabinet internal electric field, motion collision shell causes that vibration main frequency concentrates on 2kHz ~ 10kHz.When free conducting particles is lead-type impurity, the caused vibration frequency of moving in GIS cabinet internal electric field mainly concentrates on 6kHz ~ 10kHz.Can reach an even ppt acceleration of gravity of a per mille acceleration of gravity by the kinetic oscillation intensity of free conducting particles.The shelf depreciation of fixing impurity (as having air pocket in the burr of electrode surface out-of-flatness appearance in GIS, insulator) causes that shell rumble spectrum scope concentrates on 5kHz ~ 17kHz, be different from the rumble spectrum of free conducting particles, shelf depreciation mainly contains 11kHz, 16kHz.The shell vibration acceleration general 10 that the electromagnetic wave of this discharge generation causes
-5to 10
-3individual acceleration of gravity.The rumble spectrum that switching manipulation or transformer fe magnetic oscillation cause, the frequency ratio of this mechanical vibration is lower, generally at 250Hz ~ 1.5kHz.But oscillation intensity exceedes the several times of two kinds of intensity above.
" free conducting particles " described above, " fixing impurity " rumble spectrum 2kHz ~ 10kHz, 5kHz ~ 17kHz belong in incipient fault rumble spectrum." free conducting particles " is to belong to adventurous impurity in metal safe, and these " free conducting particless ", in vibration processes, may cause short circuit, or shelf depreciation." fixing impurity " refers in burr that in GIS, electrode surface out-of-flatness occurs, insulator to be had air pocket under electric field action, to cause internal field to concentrate and causes shelf depreciation, and shelf depreciation generates electromagnetic waves and causes shell vibration.Above-mentioned these two kinds all belong to incipient fault category.Rumble spectrum 250Hz ~ 1.5kHz that switching manipulation or transformer fe magnetic oscillation cause belongs to normal vibration.Free conducting particles refers to transportable micro metal object.It can be divided into two classes: metallic impurity (as: metal fillings in GIS cabinet, sheet metal, loosening screw etc.); Lead-type impurity (as wire loosening in GIS cabinet or that come off).This two classes impurity all likely can vibrate under high electric field action in GIS cabinet, thereby can cause that GIS shell vibrates.These vibration modes are a kind of forms of expression of incipient fault in GIS cabinet.When this vibration amplitude acquires a certain degree, just can judge and have incipient fault.
A kind of GIS cabinet on-line detecting system based on vibration transducer, ZigBee wireless module of the utility model, structural representation as shown in Figure 1.Data are collected center module and can be supported at most 10 vibration detection modules, and each vibration detection inside modules has complete signal processing circuit.Vibration detection module senses after GIS shell vibration information, and vibration information wireless data form is sent to data and collects center module, data are collected center module and then the data that are pooled to delivered to monitoring computer by RS-485 serial ports.Vibration acceleration sensor detects vibration signal, convert vibration signal to electric signal, then electric signal amplifies by pre-amplification circuit again, convert the voltage signal of certain amplitude to, voltage signal is respectively by the bandwidth-limited circuit of three different frequency bands: from top to bottom, frequency band is respectively 2 ~ 10kHz, 5 ~ 17kHz, 0.25 ~ 1.5k carries out filtering, each bandwidth-limited circuit signal out, through corresponding second amplifying circuit, is amplified to the voltage signal of amplitude size in the AD of Atmega16 scope by signal.Then which frequency band Atmega16, by AD high-speed sampling, obtains current vibration signal in, and the frequency of current demand signal and intensity size.Last Atmega16 single-chip microcomputer collects center module by the data that obtain by being wirelessly transmitted to data.
Data are collected center module inner structure schematic diagram as shown in Figure 3.Wireless transmission means divides to receive each vibration detection module transmission data how, and data are sent in Atmega128 single-chip microcomputer, and Atmegaga128 uploads to data on monitoring computer by RS-485.The respectively corresponding vibration detection module of LED light in Fig. 3, whether communication is normal to show vibration detection module by LED state.
Fig. 4 is vibration signal pre-amplification circuit.The function of this circuit has, and removes the DC component in signal, the vibration AC compounent in amplifying signal.The amplifier chip of this circuit is the AD620 instrument amplifier that has AD series, this chip has high cmrr, common mode interference signal in can fine removal vibration signal, this chip also has low noise, the feature of high bandwidth, can be under amplification approach the condition of 1000 times, unattenuated to the AC signal below 100kHz.This circuit is by AD620 instrument amplifier UA1, FUS-40BT/BR vibration acceleration sensor VS1, capacitor C 1, C2, C3, C4, resistance R 1, R2, R3, R4 composition.This electric capacity of capacitor C 2(of No. 1 pin serial connection of FUS-40BT/BR is for removing DC component) be connected to No. 3 pins of AD620 instrument amplifier UA1, No. 2 pins of FUS-40BT/BR directly access No. 2 pins of AD620 instrument amplifier UA1.Between 1, No. 8 pin of AD620 instrument amplifier UA1, connect a resistance, this resistance is used for regulating enlargement factor.4, No. 7 connect respectively-5V of pin of AD620 instrument amplifier UA1 ,+5V power supply.Capacitor C 3, C4 be conduct+5V ,-5V power filtering capacitor respectively.FUS-40BT/BR vibration transducer senses after vibration, produces oscillating current signal, and signal is by capacitor C 2, after being removed DC component, import instrument amplifier into, then AC signal is exaggerated, and by No. 6 pin output, the signal being exaggerated can be sent in filtering circuit.
Fig. 5 vibration signal filtering circuit.The effect of this circuit is by the vibration signal after amplifying, and respectively through the bandwidth-limited circuit filtering of three kinds of different frequency bands, then obtains the vibration signal of corresponding frequency band.Be provided with three bandwidth-limited circuits at this filtering circuit: be respectively 2 ~ 10kHz, 5 ~ 17kHz and 0.25 ~ 1.5kHz from top to down.What 2 ~ 10kHz filtering circuit was corresponding is free conducting particles rumble spectrum; The rumble spectrum that the shelf depreciation of what 5 ~ 17kHz filtering circuit was corresponding is fixing impurity causes; What 0.25 ~ 1.5kHz filtering circuit was corresponding is switching manipulation or transformer fe magnetic vibration frequency spectrum.The amplifier using in filtering circuit all adopts OP37A.Each bandwidth-limited circuit is made up of 2 OP37A.Because the circuit form of 3 bandwidth-limited circuits is the same, just component parameters difference.So connecing down the only bandwidth-limited circuit to 2 ~ 10kHz is described in detail.
Bandwidth-limited circuit is made up of a 10KHZ low-pass filtering and a 2KHZ high-pass filtering.
1), as OP37A amplifier UB1, resistance R 5 ~ R8 in Fig. 5, electric capacity R3 ~ R4 forms a 10kHz low-pass filter circuit, " pre-amplification circuit " vibration signal out, accesses low-pass filter circuit by resistance R 5, is less than the vibration signal of 10kHz by No. 6 output pin output frequencies of UB1.Then vibration signal is transferred to high-pass filtering again.
2), as the high-pass filtering of OP37A amplifier UC1, resistance R 9 ~ R12, a 2kHz of capacitor C 5 ~ C6 composition in Fig. 5.Low-pass filtering signal out accesses high-pass filtering circuit by capacitor C 5, the vibration signal that is 2kHz ~ 10kHz by No. 1 pin output band of UC1.This vibration signal is transferred in second amplifying circuit.
Fig. 6 is vibration signal second amplifying circuit figure..
1), the function of signal second amplifying circuit is that filtered signal is amplified again, because filtering, except filtering unwanted frequency signal, more or less can have certain amplitude attenuation to the vibration signal of needs.So add a reverse amplification circuit, conditioning signal amplitude, the input range that its AD that meets Atmega16 is sampled.This circuit is by 3 OP37A, resistance R 1 ~ R9, capacitor C 1, C6 composition.In this circuit, there are three amplifying circuits, the filtering circuit of three different band passband rates in corresponding filtering circuit respectively, the circuit form of three amplifying circuits is consistent, just component parameters difference.At this, only the amplifying circuit corresponding with 2 ~ 10kHz bandpass filtering described in detail.
This amplifying circuit is by OP37A amplifier UB1, resistance R 1 ~ R3 in Fig. 6, and capacitor C 1, C3 form.In this circuit, by regulating R1, the resistance ratio of R2, just can regulating circuit enlargement factor.Capacitor C 1, C3 be respectively+filter capacitor of 5V ,-5V power supply.After 2 ~ 10kHz bandpass filtering, signal out enters amplifying circuit by resistance R 1, then by No. 6 pins outputs of UB1.The signal of output is connected to the PA0 pin of Atmega16 single-chip microcomputer.The amplifying signal of two other amplifying circuit exports respectively PA1, the PA2 of Atmega16 single-chip microcomputer to.
2), PB3 ~ PB8 pin of Atmega16 single-chip microcomputer is connected with wireless transport module nRF24L01, between carry out data exchange by SPI agreement.The PC0 pin of Atmega16 single-chip microcomputer is received a LED display lamp road, PC0 receives the base stage of triode Q1 by resistance R 10, the emitter-base bandgap grading of triode Q1 is received on light emitting LED lamp D1, the collector of triode Q1 is by receive+5V of resistance R 11 power supply, in the time that the PC0 of Atmega16 single-chip microcomputer is output as high level, triode Q1 conducting, LED lamp is lit, otherwise PC0 is output as 0, LED lamp to be extinguished.
Fig. 7 is wireless transmission circuit.The function of this circuit is collected the wireless transmission between center module for vibration detection module and data.Transmission range can reach 25m.The nRF24L01 radio transmitting and receiving chip that wireless transmission circuit adopts NORDIC company to produce, this chip operation is in the ISM of 2.4GHz ~ 2.5GHz frequency range.This chip power-consumption is extremely low, mainly contain 4 kinds of mode of operations: receiving mode, sending mode, standby mode, power-down mode, in the time being operated under emission mode that emissive power is 0dBm, current drain is 11.3mA, when receiving mode, be 12.3mA, under power-down mode and standby mode, current drain is less than 1mA.As shown in Figure 7, this circuit is by nRF24L01, capacitor C 1, C2, C3, C4, C5, C6, C7, C8, and resistance R 1, R2, inductance L 1, L2, L3, crystal oscillator X1, antenna composition, each component parameters refers to circuit diagram.Wireless for " vibration detection module " side, 1 ~ No. 6 pin of nRF24L01 is connected with PB2, PB3, PB7, PB6, PB5, the PB4 pin of ATMEGA16 respectively, between carry out data transmission by SPI agreement, ATMEGA16 carries out the controls such as transceiving data, standby to nRF24L01 by SPI.For " data are collected the wireless of " center " one side; 1 ~ No. 6 pin of nRF24L01 is connected with PB5, PB4, PB1, PB3, PB2, the PB0 pin of ATMEGA128 respectively; between carry out data transmission by SPI agreement, ATMEGA128 carries out the controls such as transceiving data, standby to nRF24L01 by SPI.
Fig. 8 is that data are collected center module internal circuit.This circuit is made up of 4 parts: key circuit, indicator light circuit and 485 transmission circuits.
Key circuit has two to control button, and circuit is made up of button B1, B2, resistance R 1, R2.The PF7 pin of Atmega128 single-chip microcomputer U1 joins with+5V power supply by button B1, and by R1 resistance eutral grounding; The PF6 pin of Atmega128 single-chip microcomputer U1 joins with+5V power supply by button B2, and by R2 resistance eutral grounding.Button B1 function is to newly increase or reducing after " vibration detection module ", for module is searched for again.Button B2 function is for opening or close data acquisition function.After B1 presses ,+5V power turn-on, is 5V on the PF7 pin of Atmega128 single-chip microcomputer U1, and expression button is pressed; After button B1 flicks, 5V power supply disconnects, and it is 0V that resistance R 1 makes the PF7 pin on Atmega128 single-chip microcomputer U1 as pull down resistor, represents that B1 disconnects.Button B2 principle is consistent with B1
Indicator light circuit major function is to show which vibration detection module successful connection by LED.This circuit is by arranging type LED lamp U2, and resistance R 3 ~ R12 forms.1 ~ No. 10 pin of row's type LED lamp U2 is connected with PB6, PB7, the PC0 ~ PC7 pin of Atmega128 single-chip microcomputer U1 respectively, and 11 ~ No. 20 pins of row's type LED lamp U2 receive ground by R3 ~ R12 respectively.U2 is LED lamp from right to left, and label is D1 ~ D10 respectively, and wherein D1 ~ D9 is corresponding vibration detection module 01 ~ 09 respectively.Data are collected center module and which vibration detection module successful connection, and Atmega128 single-chip microcomputer U1 will drive that LED lamp to brighten, thereby reach a kind of prompting effect.D10 is the pilot lamp that gathers central task.
485 transmission circuit major functions are that the USART serial protocol that single-chip microcomputer is carried converts 485 semiduplex agreements to, and the data that collect are sent on computer.This circuit is by SP3485 protocol conversion chip U3, and not gate U4 forms.SP3485 is protocol conversion chip, converts USART serial protocol to RS485 half-duplex agreement.1, No. 4 pin (send, receive) of U3 is received respectively PE0, the PE1 pin (TXD, the RXD of the USART serial port of corresponding single-chip microcomputer) of Atmega128 single-chip microcomputer U1.The PE2 pin of Atmega128 single-chip microcomputer U1 is directly connected to No. 3 pins of U3, also be connected to No. 2 pins of SP3485 protocol conversion chip U3 by not gate U4,2, No. 3 pins of SP3485 protocol conversion chip U3 are respectively the Enable Pins of 1, No. 4 pin of U3, No. 2 pins are that low level enables, and No. 3 pins are that high level enables.Because RS485 is half duplex communication, sending and receiving data can not be carried out simultaneously.Adopt not circuit, reception and the sending function switching that can make single-chip microcomputer U1 just can control U3 by a pin enable, and optimize the utilization of resources.6, No. 7 pins of U3 are connected with 9 needle serial port P1 by resistance R 15, R16, by serial ports P1 just can and computer between pass through 485 agreement communications.Wherein the D1 of circuit diode, D2, D3 are that circuit prevents rush of current.Resistance R 15, R16 are transmission line matched impedances.
Chip Microcomputer A tmega16, by AD, carries out continuous sampling to vibrational waveform, and the sampling period is 5us, obtains the amplitude of each time, and sampled value calculates vibrational waveform frequency and maximum amplitude within by a period of time.Again the data upload such as sampled value, frequency, maximum amplitude are also preserved on computers to monitoring computer.User of service, by transferring data, is passing through mathematical software MATLAB drawing waveforms, and in conjunction with frequency and maximum amplitude, is judging that incipient fault is that type, and the hazard level of incipient fault.
Claims (10)
1. the GIS cabinet on-line detecting system based on vibration transducer, ZigBee wireless module, comprise: the multiple vibration detection modules, the data that are installed on GIS shell are collected center module, monitoring computer, multiple vibration detection modules are collected center module by wireless network connection data, data are collected center module and are connected monitoring computer, it is characterized in that
Each vibration detection module comprises acceleration transducer, acceleration transducer connects pre-amplification circuit, pre-amplification circuit is respectively by the bandwidth-limited circuit of three different frequency bands: 2 ~ 10KHZ bandwidth-limited circuit, 5 ~ 17KHZ bandwidth-limited circuit, 0.25 ~ 1.5KHZ bandwidth-limited circuit, each bandwidth-limited circuit is a second amplifying circuit of corresponding connection all, and second amplifying circuit connects the first one-chip computer module;
Described data are collected center module and are comprised second singlechip module, and second singlechip module connects monitoring computer by RS-485 bus, and described second singlechip module connects LED light, the corresponding vibration detection module of each LED light.
2. the GIS cabinet on-line detecting system based on vibration transducer, ZigBee wireless module according to claim 1, is characterized in that, described the first one-chip computer module is Atmega16 single-chip microcomputer, and Atmega16 single-chip microcomputer connects the first wireless transport module.
3. the GIS cabinet on-line detecting system based on vibration transducer, ZigBee wireless module according to claim 1, is characterized in that, described second singlechip module is Atmega128 single-chip microcomputer, and Atmega128 single-chip microcomputer connects the second wireless transport module.
4. the GIS cabinet on-line detecting system based on vibration transducer, ZigBee wireless module according to claim 1, is characterized in that, described acceleration transducer is FUS-40BT/BR vibration acceleration sensor.
5. the GIS cabinet on-line detecting system based on vibration transducer, ZigBee wireless module according to claim 2, is characterized in that, described the first wireless transport module comprises nRF24L01 radio transmitting and receiving chip.
6. the GIS cabinet on-line detecting system based on vibration transducer, ZigBee wireless module according to claim 3, is characterized in that, described the second wireless transport module comprises nRF24L01 radio transmitting and receiving chip.
7. the GIS cabinet on-line detecting system based on vibration transducer, ZigBee wireless module according to claim 1, is characterized in that, described pre-amplification circuit comprises AD620 instrument amplifier.
8. the GIS cabinet on-line detecting system based on vibration transducer, ZigBee wireless module according to claim 1, it is characterized in that, each bandwidth-limited circuit is connected to form by two amplifier OP37A, resistance, electric capacity, comprises a high-pass filtering circuit and a low-pass filter circuit.
9. the GIS cabinet on-line detecting system based on vibration transducer, ZigBee wireless module according to claim 1, is characterized in that, each second amplifying circuit is connected to form by amplifier OP37A, adjustable resistance, a filter capacitor.
10. the GIS cabinet on-line detecting system based on vibration transducer, ZigBee wireless module according to claim 1, it is characterized in that, described data are collected center module and are comprised: key circuit, indicator light circuit, key circuit is made up of button B1, button B2, resistance R 1, resistance R 2, second singlechip module is contact resistance R1 one end, resistance R 2 one end respectively, resistance R 1 other end, resistance R 2 other end ground connection, resistance R 1 one end, resistance R 2 one end connect respectively button B1 one end, button B2 one end, and the button B1 other end, the button B2 other end connect power supply; Indicator light circuit comprises row's type LED lamp U2, and second singlechip module connects row's type LED lamp U2 mono-side, and row's type LED lamp U2 opposite side is respectively by resistance R 3 ~ R12 ground connection.
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| CN201420445076.0U CN204007861U (en) | 2014-08-08 | 2014-08-08 | GIS cabinet on-line detecting system based on vibration transducer, ZigBee wireless module |
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| CN201420445076.0U Expired - Fee Related CN204007861U (en) | 2014-08-08 | 2014-08-08 | GIS cabinet on-line detecting system based on vibration transducer, ZigBee wireless module |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104698354A (en) * | 2015-03-13 | 2015-06-10 | 西安交通大学 | GIL (globalization, internationalization and localization) breakdown discharge positioning detecting system |
| CN104749489A (en) * | 2015-04-07 | 2015-07-01 | 西安交通大学 | High voltage GIS device breakdown discharge positioning system based on vibration signals |
| CN105115684A (en) * | 2015-08-24 | 2015-12-02 | 国家电网公司 | Gas insulated switchgear vibration signal propagation property test apparatus and method |
| CN105333948A (en) * | 2015-11-02 | 2016-02-17 | 深圳市君天恒讯科技有限公司 | High-precision vibration sensor |
| CN114264945A (en) * | 2021-12-13 | 2022-04-01 | 广东电网有限责任公司 | Equipment state detection method and device |
| CN118032116A (en) * | 2023-12-25 | 2024-05-14 | 北京大成国测科技股份有限公司 | Digital analysis method and system for automatic monitoring equipment |
| WO2025118905A1 (en) * | 2023-12-08 | 2025-06-12 | 国网浙江省电力有限公司桐乡市供电公司 | Multi-channel electronic collection unit connected to wideband voltage transformer |
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2014
- 2014-08-08 CN CN201420445076.0U patent/CN204007861U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104698354A (en) * | 2015-03-13 | 2015-06-10 | 西安交通大学 | GIL (globalization, internationalization and localization) breakdown discharge positioning detecting system |
| CN104749489A (en) * | 2015-04-07 | 2015-07-01 | 西安交通大学 | High voltage GIS device breakdown discharge positioning system based on vibration signals |
| CN104749489B (en) * | 2015-04-07 | 2018-04-27 | 西安交通大学 | A kind of high pressure GIS device breakdown breakdown location system based on vibration signal |
| CN105115684A (en) * | 2015-08-24 | 2015-12-02 | 国家电网公司 | Gas insulated switchgear vibration signal propagation property test apparatus and method |
| CN105115684B (en) * | 2015-08-24 | 2017-09-15 | 国家电网公司 | Vibration signal propagation characteristic experimental rig and method in gas insulated combined electrical equipment |
| CN105333948A (en) * | 2015-11-02 | 2016-02-17 | 深圳市君天恒讯科技有限公司 | High-precision vibration sensor |
| CN105333948B (en) * | 2015-11-02 | 2019-01-18 | 深圳市君天恒讯科技有限公司 | High-precision vibrating sensor |
| CN114264945A (en) * | 2021-12-13 | 2022-04-01 | 广东电网有限责任公司 | Equipment state detection method and device |
| CN114264945B (en) * | 2021-12-13 | 2023-08-04 | 广东电网有限责任公司 | Method and device for detecting equipment state |
| WO2025118905A1 (en) * | 2023-12-08 | 2025-06-12 | 国网浙江省电力有限公司桐乡市供电公司 | Multi-channel electronic collection unit connected to wideband voltage transformer |
| CN118032116A (en) * | 2023-12-25 | 2024-05-14 | 北京大成国测科技股份有限公司 | Digital analysis method and system for automatic monitoring equipment |
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