CN105092797A - Crystal mirror face reflectivity photo sensor-based insulator filthy degree monitoring system and method - Google Patents
Crystal mirror face reflectivity photo sensor-based insulator filthy degree monitoring system and method Download PDFInfo
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- CN105092797A CN105092797A CN201510542623.6A CN201510542623A CN105092797A CN 105092797 A CN105092797 A CN 105092797A CN 201510542623 A CN201510542623 A CN 201510542623A CN 105092797 A CN105092797 A CN 105092797A
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Abstract
The invention discloses a crystal mirror face reflectivity photo sensor-based insulator filthy degree monitoring system. Signal output ends of a temperature sensor, a humidity sensor and a laser sensor of the system are all connected to a signal input end of a central processing unit; a data communication end of the central processing unit is connected to a first data communication end of a storage module; a second data communication end of the storage module is wirelessly connected to a communication end of a center computer through a communication module, a power module is connected to power ends of the central processing unit, the storage module and the communication module, an optical signal output end of a light generator is connected to one end of a quartz glass rod, and the other end of the quartz glass rod is connected to an optical signal receiving end of the laser sensor. The crystal mirror face reflectivity photo sensor-based insulator filthy degree monitoring system can timely feed back the filthy change condition of an insulator of an electric transmission line, and solves the problems that by using a traditional method, the insulator needs to be detected by power cut, the implementation difficulty is great, the real time performance is poor, and the normal and safe operation of a power grid is influenced.
Description
Technical field
The present invention relates to emergency vehicle rescue and electric motor car mobile charging technical field, be specifically related to a kind of insulator dirty degree monitoring system based on crystal specular reflectance optical sensor and method.
Technical background
Insulator is maximum and one of of paramount importance element of quantity in electric system, the insulator of on-line operation in ultra-high-tension power transmission line, surface can deposit the dunghill of one deck from air pollution and floor-dust gradually, wherein containing conductive salt electrolyte, when meeting the wet weathers such as mist thunderbolt and ice and snow, pollution severity of insulators thing absorbs moisture, makes the electrolyte dissolution in pollution layer, ionization, causes the surface leakage current of insulator to increase.When electric field intensity is enough large, will produces shelf depreciation, and even change local arc into, when local arc reaches critical conditions, electric arc runs through the two poles of the earth, causes flashover.Because routine makes an inspection tour inconvenient Timeliness coverage fault, and cause the phenomenon of insulator arc-over to happen occasionally, very easily cause the catastrophic failure of electric system.
In order to prevent the generation of pollution flashover accident, needs make judgement promptly and accurately to pollution insulator, so that before danger is arrived, take necessary measure, traditional insulator dirty degree monitoring method needs to have a power failure to insulator, then the pollution degree of insulator analyzed and researched, the enforcement difficulty of this mode is large, poor real, affect electrical network normal safe and run.
Summary of the invention
The object of the invention is for above-mentioned technical matters, a kind of insulator dirty degree monitoring system based on crystal specular reflectance optical sensor and method are provided, this system and method can feed back the filthy situation of change of electric transmission line isolator in time, and solving classic method needs to carry out having a power failure on insulator and detect, implement that difficulty is large, poor real, affect the problem that electrical network normal safe runs.
For realizing this object, the insulator dirty degree monitoring system based on crystal specular reflectance optical sensor designed by the present invention, it is characterized in that: it comprises on-site terminal and monitoring center's computer, described on-site terminal comprises temperature sensor, humidity sensor, laser sensor, central processing unit, memory module, communication module, power module, optical generator and quartz glass bar, described temperature sensor, humidity sensor is all connected the signal input part of central processing unit with the signal output part of laser sensor, the data communication end of central processing unit connects the first data communication end of memory module, second data communication end of memory module passes through the communication ends of communication module wireless connections monitoring center computer, described power module connects central processing unit respectively, the power end of memory module and communication module, the light signal output end of described optical generator connects one end of quartz glass bar, the quartz glass bar other end connects the light signal receiving end of laser sensor.
Utilize said system to carry out a method for insulator dirty degree monitoring, it is characterized in that, it comprises the steps:
Step 1: on-site terminal is arranged on DC power transmission line steel tower cross-arm;
Step 2: the light signal output end output wavelength scope of optical generator is the light of 1500 ~ 1600nm, light is responded to by laser sensor after propagating in quartz glass bar, laser sensor, the Real-Time Optical signal that temperature sensor and humidity sensor will sense, real time temperature Value Data and real-time wet angle value data are transferred to central processing unit, central processing unit calculates corresponding luminous flux data and light loss data according to the Real-Time Optical signal obtained, central processing unit to calculate on quartz glass bar the close and grey ciphertext data of corresponding real-time salt according to described luminous flux data and light loss data, central processing unit is by close for real-time salt and grey ciphertext data, real time temperature Value Data and real-time wet angle value data are transferred to memory module and store, memory module is simultaneously by close for real-time salt and grey ciphertext data, real time temperature Value Data and real-time wet angle value data are with GSM (GlobalSystemforMobileCommunication, global system for mobile communications) mode of note sends to monitoring center's computer, monitoring center's computer makes technician in the long-range filthy situation that just can obtain DC power transmission line.
The invention has the beneficial effects as follows: utilize data communication technology to implement on-line monitoring, making to detect not need to have a power failure to the filth of insulator to detect, can Real-Time Monitoring to data analysis, well grasp the filthy situation of insulator, real-time is better, does not affect the normal safe operation of electrical network.Decrease a large amount of interruption maintenances and hotline maintenance workload by the enforcement of transmission line of electricity in-service monitoring technology, decrease the probability that personal injury occurs.Tour originally, needs personnel to be timed to circuit and carry out, and transmission line of electricity is all in the place that geologic condition is more severe, also have in the more severe situation of weather condition, workman is very tired, and in real work, the dangerous situation that personal injury occurs happens occasionally in system.Transmission line of electricity in-service monitoring technology is adopted to decrease the needs of personnel's timed patrol, to guaranteeing that personal safety and device security are very favourable.This system is high by environmental interference, accuracy, and on-line real time monitoring is stablized.
Accompanying drawing explanation
Fig. 1 is structured flowchart of the present invention;
Wherein, 1-on-site terminal, 1.1-temperature sensor, 1.2-humidity sensor, 1.3-laser sensor, 1.4-central processing unit, 1.5-memory module, 1.6-communication module, 1.7-power module, 1.8-optical generator, 19-and quartz glass bar, 2-monitoring center computer.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in further detail:
The insulator dirty degree monitoring system based on crystal specular reflectance optical sensor as shown in Figure 1, it comprises on-site terminal 1 and monitoring center's computer 2, described on-site terminal 1 comprises temperature sensor 1.1, humidity sensor 1.2, laser sensor 1.3, central processing unit 1.4, memory module 1.5, communication module 1.6, power module 1.7, optical generator 1.8 and quartz glass bar 1.9, described temperature sensor 1.1, humidity sensor 1.2 is all connected the signal input part of central processing unit 1.4 with the signal output part of laser sensor 1.3, the data communication end of central processing unit 1.4 connects the first data communication end of memory module 1.5, second data communication end of memory module 1.5 passes through the communication ends of communication module 1.6 wireless connections monitoring center computer 2, described power module 1.7 connects central processing unit 1.4 respectively, the power end of memory module 1.5 and communication module 1.6, the light signal output end of described optical generator 1.8 connects one end of quartz glass bar 1.9, quartz glass bar 1.9 other end connects the light signal receiving end of laser sensor 1.3.
In technique scheme, quartz glass bar 1.9 is one is core with rod, and air is the multimode dielectric optical waveguide of covering.When on quartz glass bar 1.9, nothing is filthy, the refractive index n1 due to quartz is greater than the refractive index n2 (n1>n2) of air, and its loss is very little, and the output light of quartz glass bar 1.9 is substantially constant; When quartz glass bar 1.9 there being filth, the contaminant particles in filth causes refractive index n to increase, and luminous energy parameter changes.Central processing unit 1.4 is according to described luminous flux data and light loss data and calculate the close and grey ciphertext data of real-time salt corresponding on quartz glass bar 1.9 according to the accurate algorithm of the close parameter of existing optical parameter salt.
In technique scheme, the wavelength coverage of the light of the light signal output end output of described optical generator 1.8 is 1500 ~ 1600nm.Be preferably 1550nm, the theoretical loss of this wavelength in medium transmission is minimum.Be conducive to the accuracy of the close and close calculating of ash of salt.
In technique scheme, by gsm wireless communications protocol or 3G (3G (Third Generation) Moblie standard) communication protocol or 4G (forth generation mobile communication standard) communication protocol wireless connections between described communication module 1.6 and monitoring center's computer 2.
In technique scheme, optical generator 1.8 and laser sensor 1.3 are set up stable laser and are produced and the transmission channel of light in quartz crystal sensing component, to ensure sensitivity and the degree of accuracy of sensing, by the change of detection luminous energy parameter and the change of ambient temperature and humidity, the salt that just can calculate insulator surface attachment is close.
Utilize said system to carry out a method for insulator dirty degree monitoring, it is characterized in that, it comprises the steps:
Step 1: be arranged on by on-site terminal 1 on DC power transmission line steel tower cross-arm, near insulator chain place to be measured;
Step 2: the light signal output end output wavelength scope of optical generator 1.8 is the light of 1500 ~ 1600nm, at quartz glass bar 1.9, (quartz glass bar 1.9 and insulator to be measured are in identical environment light, filthy situation of change on quartz glass bar 1.9 is identical with the filthy situation of change of insulator to be measured) in propagate after responded to by laser sensor 1.3, laser sensor 1.3, the Real-Time Optical signal that temperature sensor 1.1 and humidity sensor 1.2 will sense, real time temperature Value Data and real-time wet angle value data are transferred to central processing unit 1.4, central processing unit 1.4 calculates corresponding luminous flux data and light loss data according to the Real-Time Optical signal obtained, central processing unit 1.4 is according to described luminous flux data and light loss data and calculate the close and grey ciphertext data of real-time salt corresponding on quartz glass bar 1.9 (salt close with the close filthy situation characterizing DC power transmission line of ash) according to the accurate algorithm of the close parameter of existing optical parameter salt, central processing unit 1.4 is by close for real-time salt and grey ciphertext data, real time temperature Value Data and real-time wet angle value data are transferred to memory module 1.5 and store, memory module 1.5 is simultaneously by close for real-time salt and grey ciphertext data, real time temperature Value Data and real-time wet angle value data send to monitoring center's computer 2 in the mode of GSM message, monitoring center's computer 2 makes technician in the long-range filthy situation that just can obtain DC power transmission line,
Step 3: close for the real-time salt obtained and grey ciphertext data, real time temperature Value Data and real-time wet angle value data were drawn corresponding salt close and grey ciphertext data change curve, temperature value change curve and humidity value change curve by monitoring center's computer 2 in units of one day.
The present invention directly can understand the situation of change of electric transmission line isolator filth in real time, can make a response in time, prevent the generation of line accident to event, also can provide decision-making foundation accurately for the design safety improving electrical network simultaneously.
The content that this instructions is not described in detail belongs to the known prior art of professional and technical personnel in the field.
Claims (5)
1. the insulator dirty degree monitoring system based on crystal specular reflectance optical sensor, it is characterized in that: it comprises on-site terminal (1) and monitoring center's computer (2), described on-site terminal (1) comprises temperature sensor (1.1), humidity sensor (1.2), laser sensor (1.3), central processing unit (1.4), memory module (1.5), communication module (1.6), power module (1.7), optical generator (1.8) and quartz glass bar (1.9), described temperature sensor (1.1), humidity sensor (1.2) is all connected the signal input part of central processing unit (1.4) with the signal output part of laser sensor (1.3), the data communication end of central processing unit (1.4) connects the first data communication end of memory module (1.5), second data communication end of memory module (1.5) passes through the communication ends of communication module (1.6) wireless connections monitoring center computer (2), described power module (1.7) connects central processing unit (1.4) respectively, the power end of memory module (1.5) and communication module (1.6), the light signal output end of described optical generator (1.8) connects one end of quartz glass bar (1.9), quartz glass bar (1.9) other end connects the light signal receiving end of laser sensor (1.3).
2. the insulator dirty degree monitoring system based on crystal specular reflectance optical sensor according to claim 1, is characterized in that: the wavelength coverage of the light of the light signal output end output of described optical generator (1.8) is 1500 ~ 1600nm.
3. the insulator dirty degree monitoring system based on crystal specular reflectance optical sensor according to claim 1, is characterized in that: by gsm wireless communications protocol or 3G communication protocol or the wireless connections of 4G communication protocol between described communication module (1.6) and monitoring center's computer (2).
4. utilize system described in claim 1 to carry out a method for insulator dirty degree monitoring, it is characterized in that, it comprises the steps:
Step 1: on-site terminal (1) is arranged on DC power transmission line steel tower cross-arm;
Step 2: the light signal output end output wavelength scope of optical generator (1.8) is the light of 1500 ~ 1600nm, light is responded to by laser sensor (1.3) after propagating in quartz glass bar (1.9), laser sensor (1.3), the Real-Time Optical signal that temperature sensor (1.1) and humidity sensor (1.2) will sense, real time temperature Value Data and real-time wet angle value data are transferred to central processing unit (1.4), central processing unit (1.4) calculates corresponding luminous flux data and light loss data according to the Real-Time Optical signal obtained, central processing unit (1.4) calculates the close and grey ciphertext data of real-time salt corresponding to quartz glass bar (1.9) according to described luminous flux data and light loss data, central processing unit (1.4) is by close for real-time salt and grey ciphertext data, real time temperature Value Data and real-time wet angle value data are transferred to memory module (1.5) and store, memory module (1.5) is simultaneously by close for real-time salt and grey ciphertext data, real time temperature Value Data and real-time wet angle value data send to monitoring center's computer (2) in the mode of GSM message, monitoring center's computer (2) makes technician in the long-range filthy situation that just can obtain DC power transmission line.
5. the method for insulator dirty degree according to claim 4 monitoring, is characterized in that: also comprise step 3 after described step 2: close for the real-time salt obtained and grey ciphertext data, real time temperature Value Data and real-time wet angle value data were drawn the salt of correspondence close and grey ciphertext data change curve, temperature value change curve and humidity value change curve by monitoring center's computer (2) in units of one day.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113125499A (en) * | 2021-04-20 | 2021-07-16 | 西南交通大学 | High-voltage bushing surface contamination monitoring system and monitoring method thereof |
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| CN203981570U (en) * | 2014-05-29 | 2014-12-03 | 中国南方电网有限责任公司超高压输电公司 | The device of continuous coverage insulator dirty degree |
| CN204374177U (en) * | 2015-01-27 | 2015-06-03 | 武汉大学 | A kind of transmission line wire insulator contamination real-time monitoring system |
| CN204964483U (en) * | 2015-08-28 | 2016-01-13 | 中国南方电网有限责任公司超高压输电公司 | Insulator filth degree monitoring system based on crystal specular reflectivity light sensor |
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| JPH10188701A (en) * | 1996-12-27 | 1998-07-21 | Ngk Insulators Ltd | Estimating method and device for insulator dirt amount with dynamic adjustment |
| CN2655228Y (en) * | 2003-11-18 | 2004-11-10 | 武汉康普常青软件技术有限公司 | High-voltage isolator salt dirt on-line measuring apparatus for light sensor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113125499A (en) * | 2021-04-20 | 2021-07-16 | 西南交通大学 | High-voltage bushing surface contamination monitoring system and monitoring method thereof |
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Application publication date: 20151125 |