CN201628558U - Digital online monitoring system and monitoring device for power transmission lines - Google Patents
Digital online monitoring system and monitoring device for power transmission lines Download PDFInfo
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- CN201628558U CN201628558U CN2008202354231U CN200820235423U CN201628558U CN 201628558 U CN201628558 U CN 201628558U CN 2008202354231 U CN2008202354231 U CN 2008202354231U CN 200820235423 U CN200820235423 U CN 200820235423U CN 201628558 U CN201628558 U CN 201628558U
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Abstract
A digital online monitoring system and a monitoring device for power transmission lines adopt an embedded processor/controller supporting a wireless sensing network and are provided with a wireless communication module which supports the wireless sensing network and is connected with a microcontroller through an SPI bus interface. The wireless communication module is sequentially connected with a gateway of a heterogeneous network, a communication channel and a monitoring main station through wireless sensing, the microcontroller acquires data of a sensor through the wireless communication module, sends action instructions to an actuator and transmits acquired data to a monitoring center to be gathered and ordered. The system fast, accurately, reliably and inerrably monitors various parameters affecting safety operation of the power transmission lines, provides judgment basis for safety operation of overhead lines and avoids residual loss of manned petrol. Hardware of network node equipment is low in price, thereby not only reducing operation cost, labor and time to the utmost extent. The system permits building a network capable of holding 65,000 high redundant nodes of the monitoring device, guarantees that the network has strong data acquisition capacity and error self-recovery capacity, and can be still operated normally on conditions that individual nodes stop.
Description
Technical field:
The utility model relates to a kind of monitoring method and relative monitoring apparatus of transmission line of electricity, is mainly used in the transmission line of electricity status monitoring of electric system, belongs to the electric power monitoring technical field.
Background technology:
High-voltage fence is arranged in unfrequented area outside of the city basically, long-term existence that pole and tower foundation washes away, tower body inclination, conductor vibration, accident potential such as wave, environmental classes hidden danger such as trees, icing in bird pest, mountain fire, the corridor, and hidden danger such as the reduction of insulator dielectric level, pollution flashover, pilferage.Power transmission network presses for predicts accident potential accurately and effectively, reduces number of times, frequency and probability that destructive accident takes place significantly, reduces human and material resources, time and the working condition of electrical network maintenance and repair, guarantees safe operation reliably and with long-term; In order to realize real-time monitoring to transmission line of electricity, utilize, transform even need the utility model, develop various types of sensors, construct the sensor network between a transformer station and iron tower, iron tower and the iron tower simultaneously.
The power industry standard DL/T 626-2005 of National Development and Reform Committee's promulgation in 2005 " the deterioration cap and pin type suspension insulator detects rules " stipulates patrolling and examining in 5.2 detection methods, requirement, the judgment criterion of insulator of chapter 5 operation: the sparking distance that must carry out once artificial on-line operation in 2 years detects.In the real work, take the circuit of 500kV, the two-circuit, 30 in single insulator, an iron tower must be done 30*6*3*2=1080 sparking distance detection, that is to say that a workman of hot line job class can survey Wan an iron tower in one day yet.According to China Electric Power Research Institute " report of Chinese power network development strategy ", by 2002,85.78 ten thousand kilometers in 35kV-500kV circuit, 3,310,000 kilometers in 10kV-35kV circuit.Workload is big, and electric power system can't regularly be implemented to detect by the rules requirement.
The utility model content:
A technical matters to be solved in the utility model is the technological deficiency that exists at the manual testing, proposes a kind of monitoring method of the transmission line of electricity based on radio sensing network.
Another technical matters to be solved in the utility model is the monitoring device of above-mentioned monitoring method.
For the monitoring method of the utility model based on the transmission line of electricity of radio sensing network, its technical matters is solved by the following technical programs.
The monitoring method of this transmission line of electricity based on radio sensing network is characterised in that:
Have the following steps successively:
(1) after each monitoring device energising based on radio sensing network, start and set up self-organizing network, comprise that each monitoring device based on radio sensing network is set up to the route of the gateway of heterogeneous network, and the gateway of heterogeneous network is set up to the routing table based on the monitoring device of radio sensing network.
(2) based on the monitoring device of radio sensing network, be set up to the route of heterogeneous network, the heat transfer agent of monitoring device sensor acquisition transferred to the gateway of heterogeneous network by it.
(3) gateway of main station system by heterogeneous network be to each route based on the monitoring device of radio sensing network, sends the monitoring device that each or appointment are given in remote measurement, remote signalling, remote control, remote regulating, remote viewing signal.
For the monitoring method of the transmission line of electricity based on radio sensing network of the present utility model, its technical matters is solved by following further technical scheme.
Described self-organizing network, by the monitoring device based on radio sensing network form self-organization, from route, recover certainly, the wireless multi-hop network of self-healing, monitoring device has routing function, monitoring device can intercom mutually with adjacent any monitoring device, constitute network topology arbitrarily by wireless connections thus, realize the communication between monitoring device and the main station system, this network can work alone, also can be connected with optical fiber, cellular radio, radio sensing network inserts existing network with the access network form usually in the later case.
Described heterogeneous network comprises optical fiber, cable, PSTN cable network, and the GSM/CDMA/3G/WiMax wireless cellular network.
Described main station system is meant the computer system that is installed in the operation monitoring center, possesses the analysis expert system.
Described heat transfer agent comprises Leakage Current (mileage 0.01-100mA precision 10uA), the pulse frequency (50-20000Hz), temperature (range-50C-100C sensitivity 0.5C), humidity (range 1%-100% sensitivity+/-2%), wind speed (range: 0-100m/s precision: ± 0.4+ (0.05 * actual wind speed) m/s; ± 5), video camera information, acoustic information wind direction measurement range: 0-360 ° precision:.
The heat transfer agent of described collection comprise by two or more independently that sensor provided, never ipsilateral is described a plurality of complementary informations same target or environment, that do not repeat mutually again to each other; The redundant information that one group of sensor (or a sensor is repeatedly observed) obtains about same environmental characteristic.Complementary information and redundant information are handled by artificial intelligence and expert system, successfully prevent the generation of wrong reaction.
For the transmission line of electricity monitoring device of the utility model based on radio sensing network, its technical matters is solved by the following technical programs.
Described transmission line of electricity monitoring device based on radio sensing network, the monitoring device shielding box is installed in the cross-arm place of iron tower of power transmission line, pass through breeze wind, solar electrical energy generation and electric storage device power supply, comprise the optical fiber temperature/humidity sensor that conductive line surfaces is installed, be installed in the leakage/pulses of current sensor on the insulator pin link gold utensil, strain gauge, be installed in the video frequency pick-up head at electric power pylon body of the tower place, sonar sensor, the acceleration device, wind speed/wind transducer, ultrasonic generator, ultraviolet imagery instrument sensor, the signal of sensor inputs to pretreatment unit, signal is handled the back by central processing unit control store and transmission through pretreatment unit, if decision storage is then exported to storer and stored,, the decision transmission checks that routing table follows instantaneous optimum routing rule and transmit if then exporting to wireless transport module after Hash operation.
The characteristics of described monitoring device based on radio sensing network are:
Described fibre optic temperature sensor is when the electric wire temperature variation, and the Fibre Optical Sensor temperature that is close on the electric wire also changes, and sends temperature information to be positioned at the crosspiece place monitoring device by optical fiber.Under various meteorological conditions, (comprise ice coating state), can measure lead transmission capacity in service,, improve dispatching so that running status is grasped in scheduling in real time by fibre optic temperature sensor.
Described strain gauge is mounted on the iron tower construction package, the STRESS VARIATION of test iron tower, with the anti-down bar accident of falling the tower, the gold utensil that is installed in lead hitch point place by STRESS VARIATION can measure stressing conditions under the various load situation and lead vibration frequency, amplitude, stress, wave, wave.
Described Leakage Current sensor is installed on the gold utensil of insulator hitch point, when insulator contamination is serious or thunderbolt when the time having leakage current or breakdown current to pass through, reduce the operating mode that the transmission of electricity workman implements zero value detection thereby can measure insulator leakage and thunder-strike current, prevention and reduce line tripping that pollution flashover causes and the crash analysis that therefore causes by this device.
Described acceleration transducer is measured the vibration wave that tower body is subjected to the external force effect by three the acceleration transducer that is installed on the iron tower, judges by vibration wave and artificially steals tower material or conductor galloping.
Described sonar sensor is sound (Sound), navigation (Navigation) and search (Ranging) three word initialisms, can gather, judge according to voice, sound of the wind, ice slush sound.Described wind speed/wind transducer can be gathered wind speed, wind direction information.Can realize the correlation function of temperature sensor equally near receiving device by lead and tower body object natural frequency and state frequency wireless transmission.
The sound wave of the various frequencies that described ultrasound wave acoustical generator sends disturbs the deterrence birds, its can be installed in the insulator hanging point the upper end in case the birds birds nest in the above.
Described wind speed/wind transducer, employing be three cup type inductors, when vane is subjected to wind action and when rotating, through the conversion of change-over circuit, produces the frequency signal output that is proportional to wind speed.
Described video frequency pick-up head is subjected to main station system control or other sensor-triggered to be rotated, to focus on, to take pictures, to make a video recording conductor galloping, artificial theft, insulator contamination situation.
Described ultraviolet imagery instrument and far infrared imagery instrument are used for surveying corona, analyze the insulator creeping discharge, judge the running status of insulator and the temperature at terminal place.
The signal conductor that exposes that described monitoring device adopts all adopts the double layer screen line, and its outer shielding is the iron head ground connection of the insulator of close iron tower, and its internal layer shielding is pick-up unit installation site ground connection.This device is for the input interface of sensor, taked antiseepage, anti-crosstalk, measure such as anti-lightning strike, to guarantee the reliability of interface.Shielding box adopts outer copper shield, and the internal layer iron shield prevents the interference of highfield, high-intensity magnetic field and large-signal respectively.
Described central processing unit is flush bonding processor/controller of supporting radio sensing network, the program of solidifying comprises multithreading real time operating system, sensing protocol stack, data security layer, application support sublayer and equipment control, be responsible for safety, message exchange reliably.
Be provided with the wireless transport module of supporting radio sensing network, the wireless transport module of described support radio sensing network is controlled by described central processing unit, link to each other with described central processing unit by the spi bus interface, it is the central controller that each sensing unit of wireless transport module share main control unit, with the raising system stability, and significantly reduce system cost.
For the monitoring device of the radio sensing network of this utility model, its technical matters is solved by following further technical scheme.
The wireless transport module of described support radio sensing network is the wireless transport module that has following function at least:
(1) low power dissipation design;
(2) the SPI interface is arranged;
(3) there are received signal intensity indication (Received Signal Strength Indication is called for short RSSI) and link-quality indication (link quality indication is called for short LQI) to support.
The central processing unit of described support radio sensing network is the flush bonding processor/controller that has following function at least:
(1) have enough capacity to deposit the RAM of radio sensing network protocol stack, and the Flash program area can be from read-write;
(2) be solidified with data acquisition, storage, data transmission, and support the wireless networking signal procedure, and the online programming function is arranged;
(3) have and comprise interruption, the unusual control function that resets;
(4) low power dissipation design;
(5) the EMS electromagnetic protection function is arranged.
Described radio sensing network agreement, but comprise service that MAC layer and network layer are provided, form the network topology structure of multihop network route and Autonomous Control automatically, quick self-adapted recovery under the situation that individual nodes lost efficacy simultaneously, with the self-organization that realizes network, from redundant, recovery, sleep mode automatically and revive certainly, keep the extremely low energy consumption of electric power meter, safe floor provides the general safety mechanism of system.Protection MAC layer, network or application layer, in order to reduce memory requirement, they can share safety key, and application support sublayer is joined by network layer and safe floor and end points, and provides service for data transmission, safety and binding.
This utility model is compared with prior art has following advantage and beneficial effect:
(1) this utility model adopts self-organization network technology, compares with traditional personal monitoring's method, has improved monitoring efficient greatly, is not subjected to the restriction of geographical environmental condition simultaneously.
(2) to meet the requirement of National Development and Reform Committee's " electrical network and power plant's computer supervisory control system and data dispatching network safety prevention regulation " be electric system specialty monitoring network to this utility model, carried out physical isolation effectively with other networks.
Description of drawings:
Be described further below in conjunction with embodiment and edition with parallel text utility model:
Fig. 1 is that digitizing on-line monitoring system of the present utility model is formed synoptic diagram;
Fig. 2 is that digitizing on-Line Monitor Device of the present utility model is formed block scheme.
Embodiment:
This digitizing on-line monitoring system is made up of electric power pylon on-Line Monitor Device 1, radio sensing network 2, heterogeneous network gateway 3, monitoring sub-station 4, Wide Area Network 5, monitoring main website 6 as shown in Figure 1.
Electric power pylon on-Line Monitor Device 1 is based on the electric power pylon on-Line Monitor Device of radio sensing network, after the energising, start and set up the radio sensing network 2 of supporting self-organizing network, comprise that each electric power pylon on-Line Monitor Device 1 of supporting self-organizing network is set up to the route of heterogeneous network gateway 3, heterogeneous network gateway 3 is set up to the routing table of each electric power pylon on-Line Monitor Device 1 in radio sensing network 2 networks.
Each supports the electric power pylon on-Line Monitor Device 1 of radio sensing network 2, set up the route of heterogeneous network gateway 3 by it, with the routine data gathered, abnormality data transmission to heterogeneous network gateway 3, transfer to monitoring main website 6 by heterogeneous network gateway 3 again by Wide Area Network 5, receive simultaneously from monitoring the patrolling and examining of main website 6, query statement.
The digitizing on-Line Monitor Device 1 of transmission line of electricity as shown in Figure 2, be directly installed on the cross-arm place that is installed in iron tower of power transmission line, pass through breeze wind, solar electrical energy generation and electric storage device 29 energy storage, electric energy is by EMC electromagnetic protection 30, low pressure difference linear voltage regulator LDO 28 backs power to system, comprise the optical fiber temperature/humidity sensor 11 that conductive line surfaces is installed, be installed in the leakage/pulses of current sensor 12 on the insulator pin link gold utensil, strain gauge 13, be installed in the video frequency pick-up head 19 at electric power pylon body of the tower place, sonar sensor 18, acceleration transducer 17, wind speed/wind transducer 16, ultrasonic generator 15, ultraviolet ray far infrared imagery instrument sensor 14, the signal of sensor is transferred to system's external communication interface 20 by system's external communication interface 20, signal process interface driving circuit 21 is by central processor MCU 25 control stores and transmission, if decision storage is then exported to storer and stored,, the decision transmission checks that routing table follows instantaneous optimum routing rule and transmit if then exporting to wireless transport module after Hash operation.
The characteristics of described monitoring device based on radio sensing network are:
Described fibre optic temperature sensor 11 is when the electric wire temperature variation, and the Fibre Optical Sensor temperature that is close on the electric wire also changes, and sends temperature information to be positioned at the crosspiece place monitoring device by optical fiber.Under various meteorological conditions, (comprise ice coating state), can measure lead transmission capacity in service,, improve dispatching so that running status is grasped in scheduling in real time by fibre optic temperature sensor.
Described strain gauge 13 is mounted on the iron tower construction package, the STRESS VARIATION of test iron tower, with the anti-down bar accident of falling the tower, the gold utensil that is installed in lead hitch point place by STRESS VARIATION can measure stressing conditions under the various load situation and lead vibration frequency, amplitude, stress, wave, wave.
Described Leakage Current sensor 12 is installed on the gold utensil of insulator hitch point, when insulator contamination is serious or thunderbolt when the time having leakage current or breakdown current to pass through, reduce the operating mode that the transmission of electricity workman implements zero value detection thereby can measure insulator leakage and thunder-strike current, prevention and reduce line tripping that pollution flashover causes and the crash analysis that therefore causes by this device.
Described acceleration transducer 17 is measured the vibration wave that tower body is subjected to the external force effect by three the acceleration transducer that is installed on the iron tower, judges by vibration wave and artificially steals tower material or conductor galloping.
Described sonar sensor 18 is sound (Sound), navigation (Navigation) and search (Ranging) three word initialisms, can gather, judge according to voice, sound of the wind, ice slush sound.Described wind speed/wind transducer can be gathered wind speed, wind direction information.Can realize the correlation function of temperature sensor equally near receiving device by lead and tower body object natural frequency and state frequency wireless transmission.
The sound wave of the various frequencies that described ultrasound wave acoustical generator 15 sends disturbs the deterrence birds, its can be installed in the insulator hanging point the upper end in case the birds birds nest in the above.
Described wind speed/wind transducer 16, employing be three cup type inductors, when vane is subjected to wind action and when rotating, through the conversion of change-over circuit, produces the frequency signal output that is proportional to wind speed.
Described video frequency pick-up head is subjected to main station system control or other sensor-triggered to be rotated, to focus on, to take pictures, to make a video recording conductor galloping, artificial theft, insulator contamination situation.
Described ultraviolet imagery instrument and far infrared imagery instrument 14 are used for surveying corona, analyze the insulator creeping discharge, judge the running status of insulator and the temperature at terminal place.
The signal conductor that exposes that described monitoring device adopts all adopts the double layer screen line, and its outer shielding is the iron head ground connection of the insulator of close iron tower, and its internal layer shielding is pick-up unit installation site ground connection.This device is for the input interface of sensor, taked antiseepage, anti-crosstalk, measure such as anti-lightning strike, to guarantee the reliability of interface.Shielding box adopts outer copper shield, and the internal layer iron shield prevents the interference of highfield, high-intensity magnetic field and large-signal respectively.
Described central processor MCU 25 is to support the flush bonding processor/controller of radio sensing network, the program of solidifying comprises multithreading real time operating system, sensing protocol stack, data security layer, application support sublayer and equipment control, be responsible for safety, message exchange reliably.
Be provided with the wireless transport module RF 26 that supports radio sensing network, the wireless transport module of described support radio sensing network is by described central processor MCU 25 controls, link to each other with described central processor MCU 25 by the spi bus interface, it is the central controller that each sensing unit of wireless transport module share main control unit, with the raising system stability, and significantly reduce system cost.
For the monitoring device of radio sensing network of the present utility model, its technical matters is solved by following further technical scheme.
The wireless transport module RF26 of described support radio sensing network is the wireless transport module that has following function at least:
(1) low power dissipation design;
(2) the SPI interface is arranged;
(3) there are received signal intensity indication (Received Signal Strength Indication is called for short RSSI) and link-quality indication (link quality indication is called for short LQI) to support.
The central processing unit of described support radio sensing network is the flush bonding processor/controller that has following function at least:
(1) have enough capacity to deposit the RAM of radio sensing network protocol stack, and the Flash program area can be from read-write;
(2) be solidified with data acquisition, storage, data transmission, and support the wireless networking signal procedure, and the online programming function is arranged;
(3) have and comprise interruption, the unusual control function that resets;
(4) low power dissipation design;
(5) the EMS electromagnetic protection function is arranged.
Described radio sensing network agreement, but comprise service that MAC layer and network layer are provided, form the network topology structure of multihop network route and Autonomous Control automatically, quick self-adapted recovery under the situation that individual nodes lost efficacy simultaneously, with the self-organization that realizes network, from redundant, recovery, sleep mode automatically and revive certainly, keep the extremely low energy consumption of electric power meter, safe floor provides the general safety mechanism of system.Protection MAC layer, network or application layer, in order to reduce memory requirement, they can share safety key, and application support sublayer is joined by network layer and safe floor and end points, and provides service for data transmission, safety and binding.
Main control unit comprises the microcontroller MCU 25 of band nonvolatile memory FLASH 27, and the peripheral circuit of microcontroller MCU25: crystal oscillator 23, pilot lamp interface circuit 24.
Support the wireless communication module RF26 of radio sensing network to comprise that the model that Freescale company produces is two-way 2.4GHz rf data modulator-demodular unit, the clock circuit of MC13192/1, balance and unbalanced circuit and antenna, described rf data modulator-demodular unit is according to IEEE 802.15.4 standard design, adopt the radio sensing network technology, digital core with optimization, help to reduce processing power, shorten the performance period, use battery can finish power supply.
This utility model provides DES, AES, the aerial cryptographic algorithm of SSF33, writes the driver by SPI interface control MC13192/1 rf data modulator-demodular unit earlier, finishes the MAC layer exploitation of radio sensing network then thereon.
The program of solidifying comprises transmission line of electricity on-line monitoring application program, provide information to show the display application program of service, the communication application program of RS485 communication service is provided, provide the radio sensing network device systems that network layer parameter is configured and visits program, the service that they use 802.15.4 and radio sensing network protocol stack to provide jointly.
Above content be in conjunction with concrete preferred implementation to further describing that this utility model is done, can not assert that the concrete enforcement of this utility model is confined to these explanations.For this utility model person of an ordinary skill in the technical field; under the prerequisite that does not break away from the utility model design; can also make some simple deduction or replace, all should be considered as belonging to the scope of patent protection that the utility model is determined by claims of being submitted to.
Claims (9)
1. the digitizing on-line monitoring system of a transmission line of electricity is characterised in that:
Have the following steps successively:
(1) after each monitoring device energising based on radio sensing network, start and set up self-organizing network, comprise that each monitoring device based on radio sensing network is set up to the route of the gateway of heterogeneous network, and the gateway of heterogeneous network is set up to the routing table based on the monitoring device of radio sensing network
(2) based on the monitoring device of radio sensing network, be set up to the route of heterogeneous network, the heat transfer agent of monitoring device sensor acquisition transferred to the gateway of heterogeneous network by it,
(3) gateway of main station system by heterogeneous network be to each route based on the monitoring device of radio sensing network, sends the monitoring device that each or appointment are given in remote measurement, remote signalling, remote control, remote regulating, remote viewing signal.
2. the digitizing on-line monitoring system of a kind of transmission line of electricity according to claim 1 is characterized in that:
Described self-organizing network, by the monitoring device based on radio sensing network form self-organization, from route, recover certainly, the wireless multi-hop network of self-healing, monitoring device has routing function, monitoring device can intercom mutually with adjacent any monitoring device, constitute network topology arbitrarily by wireless connections thus, realize the communication between monitoring device and the main station system, this network can work alone, also can be connected with optical fiber, cellular radio, radio sensing network inserts existing network with the access network form usually in the later case.
3. according to the digitizing on-line monitoring system of a kind of transmission line of electricity of claim, it is characterized in that:
The heat transfer agent of described collection comprise by two or more independently that sensor provided, never ipsilateral is described a plurality of complementary informations same target or environment, that do not repeat mutually again to each other; One group of redundant information about same environmental characteristic that sensor obtains, complementary information and redundant information are handled by artificial intelligence and expert system, successfully prevent the generation of wrong reaction.
4. the digitizing on-Line Monitor Device of a transmission line of electricity, the monitoring device shielding box is installed in the cross-arm place of iron tower of power transmission line, pass through breeze wind, solar electrical energy generation and electric storage device power supply, comprise the optical fiber temperature/humidity sensor that conductive line surfaces is installed, be installed in the leakage/pulses of current sensor on the insulator pin link gold utensil, strain gauge, be installed in the video frequency pick-up head at electric power pylon body of the tower place, sonar sensor, the acceleration device, wind speed/wind transducer, ultrasonic generator, ultraviolet imagery instrument sensor, the signal of sensor inputs to pretreatment unit, signal is handled the back by central processing unit control store and transmission through pretreatment unit, if decision storage is then exported to storer and stored,, the decision transmission checks that routing table follows instantaneous optimum routing rule and transmit if then exporting to wireless transport module after Hash operation.
5. the digitizing on-Line Monitor Device of a kind of transmission line of electricity according to claim 4 is characterized in that:
Described fibre optic temperature sensor is when the electric wire temperature variation, the Fibre Optical Sensor temperature that is close on the electric wire also changes, send temperature information to be positioned at the crosspiece place monitoring device by optical fiber, under various meteorological conditions, can measure lead transmission capacity in service by fibre optic temperature sensor, so that running status is grasped in scheduling in real time, improve dispatching.
6. the digitizing on-Line Monitor Device of a kind of transmission line of electricity according to claim 4 is characterized in that:
Described strain gauge is mounted on the iron tower construction package, the STRESS VARIATION of test iron tower, with the anti-down bar accident of falling the tower, the gold utensil that is installed in lead hitch point place by STRESS VARIATION can measure stressing conditions under the various load situation and lead vibration, wave frequency, amplitude, angle stress, swing.
7. the digitizing on-Line Monitor Device of a kind of transmission line of electricity according to claim 4 is characterized in that:
Described Leakage Current sensor is installed on the gold utensil of insulator hitch point, when insulator contamination is serious or thunderbolt when the time having leakage current or breakdown current to pass through, reduce the operating mode that the transmission of electricity workman implements zero value detection thereby can measure insulator leakage and thunder-strike current, prevention and reduce pollution flashover and damage to crops caused by thunder and the line tripping that causes by this device.
8. the digitizing on-Line Monitor Device of a kind of transmission line of electricity according to claim 4 is characterized in that:
Described acceleration transducer is measured the vibration wave that tower body is subjected to the external force effect by three the acceleration transducer that is installed on the iron tower, judges that by vibration wave artificial destruction still is conductor vibration and waves.
9. the digitizing on-Line Monitor Device of a kind of transmission line of electricity according to claim 4 is characterized in that:
The signal conductor that exposes that described monitoring device adopts all adopts the double layer screen line, its outer shielding is the iron head ground connection of the insulator of close iron tower, its internal layer shielding is pick-up unit installation site ground connection, this device is for the input interface of sensor, antiseepage, anti-crosstalk, measure such as anti-lightning strike have been taked, to guarantee the reliability of interface, shielding box adopts outer copper shield, and the internal layer iron shield prevents the interference of highfield, high-intensity magnetic field and large-signal respectively.
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