CN208984740U - A kind of overhead transmission line observation circuit and system - Google Patents
A kind of overhead transmission line observation circuit and system Download PDFInfo
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- CN208984740U CN208984740U CN201821707314.5U CN201821707314U CN208984740U CN 208984740 U CN208984740 U CN 208984740U CN 201821707314 U CN201821707314 U CN 201821707314U CN 208984740 U CN208984740 U CN 208984740U
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- overhead transmission
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Abstract
The utility model relates to a kind of overhead transmission line observation circuit and systems, system includes data acquisition module and processing unit, data acquisition module includes the camera and sensor for monitoring overhead transmission line line state, sensor is serially connected in the end of overhead transmission line, processing unit includes overhead transmission line observation circuit, overhead transmission line observation circuit includes sensor detection circuit, signal conditioning circuit and camera start-up circuit, sensor detection circuit is used for through the sensor signal on detection overhead transmission line, the signal that will test is converted to voltage signal output, the output end of signal conditioning circuit connects the camera start-up circuit, switch is provided on camera start-up circuit, for controlling the unlatching of camera.Camera start-up circuit is controlled by comparator when there is abnormal signal and starts camera, camera acquires image with the judgement for overhead transmission line fault type.Solve the problems, such as that existing overhead transmission line monitoring device monitoring accuracy is poor.
Description
Technical field
The utility model relates to the overhead transmission line monitoring technical fields of electric system, and in particular to a kind of overhead power transmission
Line observation circuit and system.
Background technique
China's transmission line of electricity is at network-like structure distribution, there are numerous branches and most regional terrain environment numerous and complicateds,
It is easy to be influenced by weather environment, so that line failure rate is higher.When breaking down, because transmission line of electricity on the way topography is more
Become, it is difficult to search and then be safeguarded.Therefore carrying out real-time monitoring to the state of transmission line of electricity is to realize power system stability fortune
Capable important guarantee, but due to being limited by certain technical conditions, there is presently no popularizing, high-precision line status is real-time
Monitoring device, thus once the line fails, it needs to search along artificial, increases difficulty and the time of malfunction elimination, and it is sharp
It can be realized the automatic positioning of failure with distribution automation system, but cost is too big, it is difficult to promote.In time discovery line defct and
Transmission line of electricity reliability of operation can be improved in hidden danger.
Conventional overhead power transmission line detector detects the tension and arc sag of route using sensor, but according only to sensor
Detection can not specifically judge to cause line stress to increase or the reason of route arc sag occurs or waves, can not accurate feedback to frame
Empty Maintenance of Electric Transmission Line personnel safeguard that monitoring accuracy is poor according to failure cause in time.
Utility model content
The purpose of this utility model is to provide a kind of overhead transmission line observation circuit and systems, existing aerial for solving
The problem of power transmission line monitoring device monitoring accuracy difference.
In order to solve the above technical problems, the technical solution of the utility model are as follows:
The utility model provides a kind of overhead transmission line observation circuit, including sensor detection circuit, signal condition electricity
Road and camera start-up circuit, the sensor detection circuit are used for through the sensor signal on detection overhead transmission line,
The signal that will test is converted to the voltage signal output proportional to signal, and the output end of the signal conditioning circuit connects institute
Camera start-up circuit is stated, is provided with switch on the camera start-up circuit, for passing through the unlatching of switch control camera.
The utility model has the advantages that
By comparing the detection signal of the sensor of device on overhead transmission line, pass through when there is abnormal signal
Comparator controls camera start-up circuit and starts camera, and camera acquires image with sentencing for overhead transmission line fault type
It is disconnected.
Further, the signal conditioning circuit includes comparator, and the voltage signal output accesses the in the same direction of comparator
The reverse input end of input terminal, comparison circuit connects a DC power supply；It can be realized the function of signal condition.
Further, the camera start-up circuit includes full-control type turn-off device, the full-control type turn-off device
Grid connect the output end of the signal conditioning circuit, the source electrode ground connection of full-control type turn-off device, full-control type can switching off device
The drain electrode of part and the coil of relay connect, and the switch of the coil control relay of the relay controls opening for camera in turn
It opens；It can be realized the control to camera start-up circuit.
The utility model additionally provides a kind of overhead power transmission line monitoring system, including data acquisition module and processing unit,
The data acquisition module includes the camera and sensor for monitoring overhead transmission line line state, and the sensor is serially connected in
The end of overhead transmission line, the processing unit include overhead transmission line observation circuit, the overhead transmission line observation circuit packet
Sensor detection circuit, signal conditioning circuit and camera start-up circuit are included, the sensor detection circuit is for passing through detection
The sensor signal of overhead transmission line road, the signal that will test are converted to the voltage signal output proportional to signal, institute
The output end for stating signal conditioning circuit connects the camera start-up circuit, is provided with switch on the camera start-up circuit,
For passing through the unlatching of switch control camera.
The utility model has the advantages that
It is former when there is route by the state of camera and sensor monitoring overhead transmission line in data acquisition module
When barrier, processor control camera determines fault type.It is poor to solve existing overhead transmission line monitoring device monitoring accuracy
The problem of.
Further, the sensor is the tension sensor or monitoring overhead transmission line for monitoring overhead transmission line dynamic tension
The angular transducer of the wind angle of attack；For detecting the failure of overhead transmission line.
Further, the signal conditioning circuit includes comparator, and the voltage signal output accesses the in the same direction of comparator
The reverse input end of input terminal, comparison circuit connects a DC power supply；It can be realized the function of signal condition.
Further, the camera start-up circuit includes full-control type turn-off device, the full-control type turn-off device
Grid connect the output end of the signal conditioning circuit, the source electrode ground connection of full-control type turn-off device, full-control type can switching off device
The drain electrode of part and the coil of relay connect, and the switch of the coil control relay of the relay controls opening for camera in turn
It opens.
It further, further include for the communication module with extraneous terminal called, the communication module is GSM communication module
Or GPRS communication module.
Detailed description of the invention
Fig. 1 is the overhead transmission line observation circuit circuit diagram of the utility model embodiment；
Fig. 2 is the data acquisition module scheme of installation of the overhead power transmission line monitoring system of the utility model embodiment；
Fig. 3 is the overhead transmission line monitoring system schematic of the utility model embodiment；
Appended drawing reference: the first power transmission tower of 1-, the second power transmission tower of 2-, 3- third power transmission tower, the 4th power transmission tower of 4-, 5- first are outstanding
Hang down insulator chain, the second suspension insulator of 6-, 7- sensor, the first strain insulator string of 8-, the second strain insulator string of 9-,
11- camera, 12- control cabinet, 13- support rod, 14- solar panel, 15- antenna, 16- connecting line, 10A- strain insulator route
The portion section A, the portion 10B- strain insulator part of path B, the portion 10C- strain insulator part of path C, A1- comparator, C1- first capacitor, R1- first resistor,
R3- 3rd resistor, the 4th resistance of R4-, the 6th resistance of R6-, the 7th resistance of R7-, the 8th resistance of R8-, U1- current sensor,
VT1- triode, DZ1- zener diode, Q1-MOS pipe, K- relay coil, the normally opened contact of K1- relay.
Specific embodiment
To keep the purpose of this utility model, technical solution and advantage clearer, with reference to the accompanying drawings and embodiments, to this
Utility model is described in further detail.
Overhead transmission line observation circuit embodiment:
As shown in Figure 1 ,+5V power supply is current sensor U1 power supply, current sensor by the port 1 of current sensor U1
The port 2 of U1 connects one end of the first resistor R1 of RC oscillator, and the other end connection comparator A1's of first resistor R1 is in the same direction
One end of input terminal and first capacitor C1, the port 3 of the other end connection current sensor U1 of first capacitor C1, the port 3 of U1
Ground connection.The reverse input end of comparator A1 is grounded by 3rd resistor R3, and the reverse input end of comparator A1 also passes through the 4th electricity
Resistance R4 connects+5V power supply.The output end of comparator A1 accesses a voltage regulator circuit, and voltage regulator circuit includes triode VT1, two pole of pressure stabilizing
The collector of the output end connecting triode VT1 of pipe DZ1 and the 6th resistance R6, comparator A1 connect three with by the 6th resistance R6
The cathode of the base stage of pole pipe VT1, zener diode DZ1 is connect with the base stage of triode VT1, and the anode of zener diode DZ1 connects
Ground, the signal after pressure stabilizing are exported from the emitter of triode VT1.The emitter connection camera start-up circuit of triode VT1, three
The grid of the emitter connection metal-oxide-semiconductor Q1 of pole pipe VT1, the drain electrode of metal-oxide-semiconductor Q1 are connect with one end of relay coil K, relay
The other end of coil K is grounded by the 7th resistance R7 connection+5V power supply, the source electrode of metal-oxide-semiconductor Q1.The normally opened contact K1 mono- of relay
End connection Vcc power supply, the other end pass through the 8th resistance R8 connection camera, when the normally opened contact K1 of relay is closed, camera
Be powered starting.
When work, the signal that sensor acquires is converted to the signal with acquisition by the current sensor U1 of model ACS712
Proportional voltage signal, the input in the same direction of input comparator A1 after then handling the voltage signal by RC low-pass filter
End, connects+5V power supply by the 4th resistance R4 in the reverse input end of comparator A1, the voltage value of the power supply can be according to actual condition
It adjusts.The signal of comparator A1 output drives camera start-up circuit after voltage regulator circuit is handled, as control signal.
The reverse input end of comparator A1 connects+5V power supply by the 4th resistance R4, as the comparison signal of comparator A1,
When overhead transmission line breaks down, the collected signal of current sensor U1, that is, amplifier A1 noninverting input signal voltage value
More than the voltage value of comparison signal, comparator A1 exports high level signal to voltage regulator circuit, and triode VT1, which is exported, stablizes high level
Metal-oxide-semiconductor Q1 is connected in signal, and relay coil K obtains the electric normally opened contact K1 closure for making relay, so that camera be made to obtain electric open
It is dynamic.
In sensor detection circuit, can access different processing chips according to different sensors type, after will through handle core
Treated that signal is converted to corresponding voltage signal is input to comparator and is compared judgement for piece.
Two stage comparator can be used as other embodiments using comparator A1 in signal conditioning circuit in the present embodiment,
The feedback end that comparator A2 is connected in parallel on comparator A1 follows amplification to improve signal.
This gives a kind of structures of the good camera start-up circuit of specific sensor detection circuit, as other
Embodiment can substitute the detection of the sensor in foregoing circuit using commonly can be realized the circuit of identical function in engineering
Circuit and camera start-up circuit.
Overhead transmission line monitors system embodiment:
The installation of overhead power transmission line monitoring system is as shown in Fig. 2, overhead transmission line includes the first power transmission tower 1, the in figure
4 four two power transmission towers 2, third power transmission tower 3 and the 4th power transmission tower power transmission towers, power line tension section are divided into three by above-mentioned power transmission tower
Section, strain insulator part of path A portion 10A, the second power transmission tower 2 and third transmission of electricity between respectively the first power transmission tower 1 and the second power transmission tower 2
The strain insulator part of path C portion 10C between strain insulator part of path B portion 10B, third power transmission tower 3 and the 4th power transmission tower 4 between tower 3, each portion
The power transmission line of strain insulator part of path is divided to hang on the straight of power transmission tower by the first suspension insulator 5 and the second suspension insulator 6
On line bar tower, suspension insulator is primarily subjected to the vertical load and wind load of conducting wire, can be along vertical or horizontal rotation.It is resistance to
The bracing cable section portion A 10A is connect with the junction of the first power transmission tower 1 by the first strain insulator string 8, strain insulator part of path C portion 10C
It is connect with the junction of the 4th power transmission tower 4 by the second strain insulator string 9.The data of overhead power transmission line monitoring system acquire
Sensor 7 in module is installed between strain insulator string and the first power transmission tower 1, and 11 device of camera is in the first power transmission tower 1
On.
Overhead power transmission line monitoring system includes data acquisition module and processing unit, and data acquisition module includes for monitoring
The camera and sensor of overhead transmission line line state, sensor are serially connected in the end of overhead transmission line, and processing unit includes frame
Empty power transmission line observation circuit, overhead transmission line observation circuit include sensor detection circuit, comparison circuit and camera starting electricity
Road, by the sensor signal on detection overhead transmission line, the signal that will test is converted to and believes sensor detection circuit
The output of number proportional voltage signal, comparison circuit include comparator, the noninverting input of voltage signal output access comparator,
The reverse input end of comparison circuit connects a DC power supply, and the output end of comparison circuit connects camera start-up circuit, camera
The connection that start-up circuit passes through the power supply of switch control camera.
Focus on, line fault type judged by camera 11, in order to administrative staff in time to transmission line of electricity into
Row maintenance, wherein overhead transmission line observation circuit is the circuit in overhead transmission line observation circuit embodiment, and details are not described herein.
Mounting structure and the composition of overhead power transmission line monitoring system are as shown in figure 3, strain insulator part of path A portion 10A passes through first
Strain insulator string 8 is connect with data acquisition module, and data acquisition module includes sensor 7 and camera 11, data acquisition module
Block is connect by connecting line 16 with control cabinet 12, and a support rod for being used to support solar panel 14 is provided on control cabinet 12
13, the antenna 15 of the communication module of overhead power transmission line monitoring system is provided on support rod 13.It include being used in control cabinet 12
Handle data collecting module collected to signal and communication control module processing unit, and for outwardly terminal called
GSM communication module, solar panel 14 are that data acquisition module and control cabinet are powered as accessory power supply.
Wherein, sensor 7 is the tension sensor and the monitoring overhead transmission line wind angle of attack for monitoring overhead transmission line dynamic tension
Angular transducer, as using data measured by line end tension sensor and angular transducer as basic parameter, knot
The inherent parameters on zygonema road introduce equivalent axial tensile force for the kinetic characteristic that overhead transmission line is generated because meteorology changes
And consider windage yaw factor, motion amplitude is gone out based on wire length method backstepping, then aerodynamic coefficient is calculated by numerical value, to complete
Overhead transmission line movement detection, reflect overhead transmission line arc sag situation and strain section suffered by tension condition, to line
Whether road, which breaks down, is judged.
In addition, due to the setting environment of overhead transmission line, overhead transmission line is easy to happen contact fault i.e. high impedance fault
(high-impedance fault, HIF), high impedance fault is often as in power transmission line between conductor and non-conductive surfaces
Caused by electrical contact.When overhead transmission line is contacted, such as animal, the mankind or trees, tension sensor detection and angle pass
Sensor detects that the state of overhead transmission line changes, to complete the detection of overhead transmission line movement, reflects aerial
Tension condition suffered by the arc sag situation and strain section of power transmission line judges whether route breaks down.
When overhead transmission line breaks down, the overhead transmission line observation circuit control camera 11 in processing unit is opened
It is dynamic, to be used to acquire the image of strain insulator part of path, judge that route occurs that the movement of route caused by meteorology or transmission line of electricity
Contact fault, and then outwardly terminal sends transmission line malfunction information to communication control module in real time through the processing unit, pipe
Reason personnel carry relevant device according to fault type or starting related facility safeguards overhead transmission line.
In the present embodiment, sensor selects tension sensor and angular transducer to can be selected non-as other embodiments
Contact magnetic-field measurement identifies abort situation along the magnetic field that power transmission line measures by Magnetic Sensor.
It should be noted that above-mentioned processing unit, can be single processor, it is also possible to more than two processors and is formed
Processing unit.It, can be using at high-performance image in view of multiple sensors involved in the utility model and image information
The processing chip of reason ability is responsible for the function of line fault identification, and the information of sensor acquisition carries out logic by other processors
Processing.
In the present embodiment, communication module uses GSM communication module, and as other embodiments, GPRS communication mould can be used
Block.
Claims (8)
1. a kind of overhead transmission line observation circuit, which is characterized in that including sensor detection circuit, signal conditioning circuit and camera shooting
Head start-up circuit, the sensor detection circuit are used to will test by the sensor signal on detection overhead transmission line
Signal be converted to proportional to signal voltage signal output, the output end of the signal conditioning circuit connects the camera
Start-up circuit is provided with switch on the camera start-up circuit, for passing through the unlatching of switch control camera.
2. overhead transmission line observation circuit according to claim 1, which is characterized in that the signal conditioning circuit include than
Compared with device, the noninverting input of the voltage signal output access comparator, the reverse input end of comparison circuit connects a direct current
Source.
3. overhead transmission line observation circuit according to claim 1 or 2, which is characterized in that the camera start-up circuit
Including full-control type turn-off device, the grid of the full-control type turn-off device connects the output end of the signal conditioning circuit,
The source electrode of full-control type turn-off device is grounded, and the drain electrode of full-control type turn-off device and the coil of relay connect, the relay
The switch of the coil control relay of device and then the unlatching for controlling camera.
4. a kind of overhead power transmission line monitoring system, which is characterized in that including data acquisition module and processing unit, the data are adopted
Collection module includes the camera and sensor for monitoring overhead transmission line line state, and the sensor is serially connected in overhead transmission line
End, the processing unit includes overhead transmission line observation circuit, the overhead transmission line observation circuit include sensor inspection
Slowdown monitoring circuit, signal conditioning circuit and camera start-up circuit, the sensor detection circuit are used for through detection overhead transmission line
The sensor signal of road, the signal that will test are converted to the voltage signal output proportional to signal, the signal condition
The output end of circuit connects the camera start-up circuit, is provided with switch on the camera start-up circuit, for by opening
Close the unlatching of control camera.
5. overhead power transmission line monitoring system according to claim 4, which is characterized in that the sensor is maked somebody a mere figurehead defeated for monitoring
The tension sensor of electric wire dynamic tension or the angular transducer for monitoring the overhead transmission line wind angle of attack.
6. overhead power transmission line monitoring system according to claim 5, which is characterized in that the signal conditioning circuit include than
Compared with device, the noninverting input of the voltage signal output access comparator, the reverse input end of comparison circuit connects a direct current
Source.
7. according to the described in any item overhead power transmission line monitoring systems of claim 4-6, which is characterized in that the camera starting
Circuit includes full-control type turn-off device, and the grid of the full-control type turn-off device connects the output of the signal conditioning circuit
The coil of end, the source electrode ground connection of full-control type turn-off device, the drain electrode of full-control type turn-off device and relay connects, it is described after
The switch of the coil control relay of electric appliance and then the unlatching for controlling camera.
8. overhead power transmission line monitoring system according to claim 7, which is characterized in that further include for logical with extraneous terminal
The communication module of news, the communication module are GSM communication module or GPRS communication module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821707314.5U CN208984740U (en) | 2018-10-19 | 2018-10-19 | A kind of overhead transmission line observation circuit and system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821707314.5U CN208984740U (en) | 2018-10-19 | 2018-10-19 | A kind of overhead transmission line observation circuit and system |
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| CN208984740U true CN208984740U (en) | 2019-06-14 |
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| CN201821707314.5U Expired - Fee Related CN208984740U (en) | 2018-10-19 | 2018-10-19 | A kind of overhead transmission line observation circuit and system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110417247A (en) * | 2019-07-12 | 2019-11-05 | 深圳市微风通讯技术有限公司 | Faraday's lightning protection power source protective module |
| CN110672947A (en) * | 2019-09-29 | 2020-01-10 | 龙岩学院 | Intelligent electrical engineering measurement system and measurement method |
| CN112198450A (en) * | 2020-09-07 | 2021-01-08 | 深圳供电局有限公司 | Mutual inductor secondary neutral line hidden fault risk remote transmission system and method based on 5G network |
-
2018
- 2018-10-19 CN CN201821707314.5U patent/CN208984740U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110417247A (en) * | 2019-07-12 | 2019-11-05 | 深圳市微风通讯技术有限公司 | Faraday's lightning protection power source protective module |
| CN110672947A (en) * | 2019-09-29 | 2020-01-10 | 龙岩学院 | Intelligent electrical engineering measurement system and measurement method |
| CN112198450A (en) * | 2020-09-07 | 2021-01-08 | 深圳供电局有限公司 | Mutual inductor secondary neutral line hidden fault risk remote transmission system and method based on 5G network |
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Granted publication date: 20190614 Termination date: 20191019 |