CN204479670U - A kind of electrical equipment malfunction detection system - Google Patents
A kind of electrical equipment malfunction detection system Download PDFInfo
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- CN204479670U CN204479670U CN201520110574.4U CN201520110574U CN204479670U CN 204479670 U CN204479670 U CN 204479670U CN 201520110574 U CN201520110574 U CN 201520110574U CN 204479670 U CN204479670 U CN 204479670U
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- chip microcomputer
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- electrical equipment
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Abstract
The utility model relates to a kind of electrical equipment malfunction detection system, comprises power module, single-chip microcomputer, PC, infrared sensor and Ultraviolet sensor; Power module is connected with infrared, Ultraviolet sensor and single-chip microcomputer respectively by power supply output line, and infrared, Ultraviolet sensor is connected with single-chip microcomputer respectively by wire, and single-chip microcomputer is connected with PC by serial communication interface.The utility model therefrom extracts the off-note signal of insulating part electric discharge by gathering UV signal, and by gathering infrared signal, accurate monitoring temperature is carried out to abnormal heating parts, to combine with local discharge signal carry out fault diagnosis to detecting the temperature value at position, obtain the comprehensive reliability characteristic parameter of electrical equipment, and insulate and hot stall problem parameter, quick diagnosis is made to latent fault in equipment or hidden danger, significant for transmission reliability to guarantee, generating plant can be applied to, the monitoring of electrical equipment in transformer station and transmission line of electricity, the manual inspection substituted for a long time is observed.
Description
Technical field
The utility model belongs to electrical equipment, relates to the malfunction monitoring of electrical equipment, is specifically related to a kind of based on the infrared system with the monitoring electrical equipment malfunction of ultraviolet two kinds of signal fused.
Background technology
At present, along with electric pressure constantly raises, with rapid economic development, various industrial or agricultural pollutant is on the increase, and the extreme weather factor caused because of environmental disruption, makes the degradation of insulation degree of power circuit and equipment more and more serious.Insulation fault accounts for the second of whole power system accident, and at highfield, under open position, in insulation of electrical installation, the part of some weaknesses shelf depreciation will occur, and due to shelf depreciation, can cause abnormal heating, thus causes power system accident.Existing electrical equipment malfunction detection system function singleness, can not comprehensively temperature rise and discharge capacity two kinds of fault-signals, thus comprehensive analysis accurately cannot be carried out to equipment failure situation and judge, early-stage development defect can not be identified, and temperature survey many employings contact thermography, operate inconvenience on the spot.
Utility model content
In order to solve the problems referred to above that prior art exists, the utility model provides a kind of monitoring system for electrical equipment malfunction.
The technical scheme that the utility model adopts is: a kind of electrical equipment malfunction detection system, comprises power module, single-chip microcomputer, PC, infrared sensor and Ultraviolet sensor; Described infrared sensor, Ultraviolet sensor, single-chip microcomputer are connected with the output terminal of power module respectively by wire, described infrared sensor, Ultraviolet sensor are connected with single-chip microcomputer input end respectively by wire, and described single-chip microcomputer output terminal is connected by Serial Port Line with PC.
Described single-chip microcomputer adopts STC12C5A60S2 single-chip microcomputer.
Described infrared sensor is for firing too TN907 infrared temperature-test sensor.
Described Ultraviolet sensor is R2868 flame sensor
.
A C3704 driving circuit is connected with between described R2868 flame sensor and single-chip microcomputer.
The beneficial effects of the utility model are: detection system of the present utility model has infrared sensor and Ultraviolet sensor two kinds of sensors, infrared electronic technology is used to detect the temperature value of power equipment measured point, use the umber of pulse that ultraviolet transducing technology for detection power equipment discharge produces, and two kinds of sensors carry out data processing by same single-chip microcomputer, effectively the temperature of same for electrical equipment time and discharge information can be merged, give full play to the feature of Different Light sensor, obtain electrical equipment comparatively comprehensively failure message as far as possible, be convenient to the data processing in later stage and accurately judge, PC end is transferred to by wired or wireless for signal after single-chip data process, realize data record, preserve, management, the function of fault Real-Time Monitoring.The electrical equipment malfunction detection system of the infrared and ultraviolet light photo sensing integration technology of the utility model, the Ultraviolet sensor of selection work wavelength within the scope of solar blind, detects the umber of pulse that power equipment discharge produces, can remove the interference of background environment UV radiation.Infrared Sensor System, according to infrared emanation principle, can realize noncontact, remote temperature measurement, has in real time, is subject to the advantage such as electromagnetic interference (EMI), safety fast, not easily.This system is high compared to conventional infrared thermoviewer cost performance, and cost is low, and temperature measurement accuracy is high, can realize the continuous on-line monitoring of power equipment, thus ensure its safe and reliable operation, off-note signal is therefrom extracted by the collection of UV signal, and accurate monitoring temperature is carried out to abnormal heating parts, the temperature value of detected equipment key position is combined with local discharge signal and carries out fault diagnosis, thus obtain the parameter of the comprehensive electric parameter of electrical equipment and some failure problems, to the fault of hiding in equipment or accident potential's attribute, the order of severity makes quick diagnosis, and can Real-Time Monitoring be carried out, two kinds of sensors are all non-contactor types, can in the outer far-end monitoring of suitable safe distance, this system is significant for transmission reliability to guarantee, generating plant can be applied to, the monitoring of electrical equipment in transformer station and transmission line of electricity, the manual inspection substituted for a long time is observed.This system also can carry out monitoring and diagnosis to the insulation of electrical installation state under specific work environments, such as fault detection and diagnosis is carried out to the marine electric equipment being subject to the environmental impacts such as natural salt alkali, humidity, contribute to improving electrical equipment operational reliability in certain circumstances.
Accompanying drawing explanation
Fig. 1. be structural representation of the present utility model;
Fig. 2. be the utility model single-chip microcomputer handling procedure block diagram.
Embodiment
As shown in Figure 1, the utility model provides a kind of monitoring system for electrical equipment malfunction, comprises power module, single-chip microcomputer, PC, infrared sensor and Ultraviolet sensor; Power module access civil power, described infrared sensor, Ultraviolet sensor, single-chip microcomputer are connected with power module outlet respectively by wire, and described infrared sensor, Ultraviolet sensor are connected with single-chip microcomputer respective pin respectively by wire.It is STC12C5A60S2 single-chip microcomputer that described single-chip microcomputer adopts, STC12C5A60S2 is the single-chip microcomputer of single clock/machine cycle (1T) that STC produces, the completely compatible tradition 8051 of instruction code, many 1 serial ports of two timers more than 51 common single-chip microcomputers, two sensors respectively uses a serial ports, signal is reached single-chip microcomputer, under same crystal oscillator condition, this single-chip microcomputer speed is 8-12 times of common 51 single-chip microcomputers, there is the internal extended RAM of 1K, be convenient to two sensors and carry out data processing and transmission simultaneously.Described Ultraviolet sensor is R2868 flame sensor, and described infrared sensor, for firing too TN907 infrared temperature-test sensor, is connected with a C3704 driving circuit between described R2868 flame sensor and single-chip microcomputer.Single-chip microcomputer VCC meets power supply 5V, GND ground connection, pin P3.1/TXD meets the signal receiving end R firing too TN907 infrared temperature-test sensor, pin P3.0/RXD pin connects and fires too TN907 infrared temperature-test sensor signal issuing side S, pin P3.4/T0 meets R2868 flame sensor CATHODE LEAD (negative electrode), because R2868 flame sensor needs voltage to be the driving circuit of 10V, ANODE LEAD (anode) connects 10V power supply.The temperature signal of described infrared sensor collection and the light pulse signal of Ultraviolet sensor collection transfer to single-chip microcomputer respectively, after single-chip microcomputer carries out data processing, temperature value and light pulse number are transferred to PC, described single-chip microcomputer is connected with PC by serial communication interface, described single-chip microcomputer and PC two-way communication.After described single-chip microcomputer carries out data processing, signal also can be selected and be wirelessly transmitted to PC.
The ultraviolet wavelength that power equipment discharge produces is mostly at 280 ~ 400nm, and fraction is at 230 ~ 280nm.Because the ultraviolet of <280nm in the sun is being relatively unabsorbed by ozone through during air, forms solar blind, detecting the ultraviolet of this part wavelength, can be used as the foundation of judgment device electric discharge.Ultraviolet sensor is its spectral response range of flame type R2868 sensor is 185-260nm, can avoid visible ray interference.Sensitivity is 5000cmp, and working temperature is-20 to 60 degrees Celsius.What Ultraviolet sensor directly measured is light pulse number, experimentally research shows that the light pulse number of Ultraviolet sensor collection directly can reflect the number of electric pulse, so can think that the light pulse number that reaches single-chip microcomputer and discharge pulse have the relation on value, and the ultraviolet in daylight can not have an impact to it, the critical distance of test can more than 30 meters.Infrared sensor is for firing too TN907 infrared temperature-test sensor, its principle of work is based on Seebeck effect (thermoelectric force effect), primary element is thermopile sensor, can realize contactless thermometric, and the diameter ratio of measuring distance and measured target object can reach 24:1.The utility model is by infrared sensor, Ultraviolet sensor image data, single-chip microcomputer carries out the functions such as data processing, then data-signal by serial ports or be wirelessly transmitted to PC end, PC control survey passage and open and close control is carried out to whole system, PC sets some basic parameter, the infrared emittance of such as testee; During use, as shown in Figure 2, according to the distance of testee apart from infrared sensor, PC sets infrared emittance and the resolution of testee, and PC sends instruction to start to receive, process data, open the keyswitch on single-chip microcomputer, the temperature value measured is reached single-chip microcomputer and carries out data processing by infrared sensor, and the light pulse number detected is passed to same single-chip microcomputer and carries out data processing by Ultraviolet sensor, and data are reached PC by Serial Port Line by single-chip microcomputer.PC background system realizes data display, record and management function, the discharge pulse of the temperature value recorded by infrared channel and ultraviolet passage record, carry out comprehensive descision fault type, PC background system with KingView software for platform is developed, described system includes main interface, inventory interface, function interface three parts, Real-Time Monitoring temperature and discharge pulse data can be recorded, Real time dynamic display is carried out to monitor temperature and discharge pulse data, and dynamic trend curve can be fitted to, intuitively reflect the temperature of measurand and the situation of change of discharge pulse, when the numerical value real-time monitored exceedes the normal value set, system sends chimes of doom, the data relationship of comprehensive two amounts, provide corresponding failure model to judge.The data query function of system can inquire about all temperature values monitored within certain time period and discharge pulse number, and malfunction, and can generate test report by user's demand, and test report can be preserved and print.
The utility model is not limited to above-mentioned preferred forms; anyone can draw other various forms of products under enlightenment of the present utility model; no matter but any change is done in its shape or structure; every have identical with the application or akin technical scheme, all drops within protection domain of the present utility model.
Claims (5)
1. an electrical equipment malfunction detection system, is characterized in that: comprise power module, single-chip microcomputer, PC, infrared sensor and Ultraviolet sensor; Described infrared sensor, Ultraviolet sensor, single-chip microcomputer are connected with the output terminal of power module respectively by wire, described infrared sensor, Ultraviolet sensor are connected with single-chip microcomputer input end respectively by wire, and described single-chip microcomputer output terminal is connected by Serial Port Line with PC.
2. a kind of electrical equipment malfunction detection system according to claim 1, is characterized in that: described single-chip microcomputer adopts STC12C5A60S2 single-chip microcomputer.
3. a kind of electrical equipment malfunction detection system according to claim 1, is characterized in that: described infrared sensor is for firing too TN907 infrared temperature-test sensor.
4. a kind of electrical equipment malfunction detection system according to claim 1, is characterized in that: described Ultraviolet sensor is R2868 flame sensor
.
5. a kind of electrical equipment malfunction detection system according to claim 4, is characterized in that: be connected with a C3704 driving circuit between described R2868 flame sensor and single-chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520110574.4U CN204479670U (en) | 2015-02-15 | 2015-02-15 | A kind of electrical equipment malfunction detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520110574.4U CN204479670U (en) | 2015-02-15 | 2015-02-15 | A kind of electrical equipment malfunction detection system |
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| Publication Number | Publication Date |
|---|---|
| CN204479670U true CN204479670U (en) | 2015-07-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520110574.4U Expired - Fee Related CN204479670U (en) | 2015-02-15 | 2015-02-15 | A kind of electrical equipment malfunction detection system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106802384A (en) * | 2016-11-30 | 2017-06-06 | 同济大学 | Electrical equipment malfunction detection method based on the sensing fusion of infrared and ultraviolet light photo |
| CN110146793A (en) * | 2019-05-21 | 2019-08-20 | 国网河北省电力有限公司衡水市桃城区供电分公司 | A kind of method of electric line electricity sparking fever class fault location |
| CN110888027A (en) * | 2019-12-03 | 2020-03-17 | 深圳供电局有限公司 | Sensor for detecting discharge of ring main unit |
| CN111458589A (en) * | 2020-04-20 | 2020-07-28 | 西安中科长青医疗科技研究院有限公司 | Electromagnetic compatibility design verification method |
-
2015
- 2015-02-15 CN CN201520110574.4U patent/CN204479670U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106802384A (en) * | 2016-11-30 | 2017-06-06 | 同济大学 | Electrical equipment malfunction detection method based on the sensing fusion of infrared and ultraviolet light photo |
| CN106802384B (en) * | 2016-11-30 | 2020-01-31 | 同济大学 | Electrical equipment fault detection method based on infrared and ultraviolet photoelectric sensing fusion |
| CN110146793A (en) * | 2019-05-21 | 2019-08-20 | 国网河北省电力有限公司衡水市桃城区供电分公司 | A kind of method of electric line electricity sparking fever class fault location |
| CN110888027A (en) * | 2019-12-03 | 2020-03-17 | 深圳供电局有限公司 | Sensor for detecting discharge of ring main unit |
| CN111458589A (en) * | 2020-04-20 | 2020-07-28 | 西安中科长青医疗科技研究院有限公司 | Electromagnetic compatibility design verification method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150715 Termination date: 20160215 |