CN202711408U - Ion spatial electric current density-based direct current transmission line mountain fire monitoring device - Google Patents
Ion spatial electric current density-based direct current transmission line mountain fire monitoring device Download PDFInfo
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- CN202711408U CN202711408U CN 201220287925 CN201220287925U CN202711408U CN 202711408 U CN202711408 U CN 202711408U CN 201220287925 CN201220287925 CN 201220287925 CN 201220287925 U CN201220287925 U CN 201220287925U CN 202711408 U CN202711408 U CN 202711408U
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- current density
- mountain fire
- ion current
- transmission line
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Abstract
The utility model discloses an ion spatial electric current density-based direct current transmission line mountain fire monitoring device, which comprises an ion electric current density and environment parameter monitoring module for measuring ion electric current density, wind speed and wind direction, temperature, humidity and atmospheric pressure of a direct current transmission line, a mountain fire judging and early-warning module for judging whether a mountain fire exists or not according to the ion electric current density and the environment parameter, and a communication module for transiting early warning information and receiving status instructions of the ion electric current density and environment parameter monitoring module. The device is convenient to use and maintain, can stably monitor the basic environment parameters around the direct current transmission line running in case of high voltage such as wind speed, wind direction, temperature, humidity, atmospheric pressure and the like, computes the ion electric current density nearby measure points according to the basic parameters such as the wind speed and the wind direction, judges the mountain fire nearby the transmission line according to the ion electric current density, transmits the alarm information to the control center by the wireless communication unit, and timely prompts operators on duty by the acousto-optic alarm information which cooperatively controls a master computer.
Description
Technical field
The utility model relates to the transmission line of electricity technical field, particularly a kind of DC power transmission line mountain fire monitoring device based on the space ion current density.
Background technology
2005 so far, and the transmission line of electricity that Hubei Electric Transmission ﹠ Transformation Engineering Company safeguards the mountain fire fault occurs altogether 8 times, and mountain fire causes line tripping to bring serious threat to power network safety operation.The first quarter in 2010 south electric network 220kV and the tripping operation of above line failure 262 times, wherein the 500kV line tripping is 113 times, accounts for 43.13%; 220kV line tripping 149 times accounts for 56.87%.The line tripping that causes because of mountain fire 128 times, the line is busy the road always trips 4819% of number of times, especially the fault trip that outstanding is on February 28th, 2010, Guizhou Power Grid 220kV and above circuit caused because of mountain fire 27 times accounts for 21.09% of first quarter mountain fire tripping operation number of times.Therefore, the DC power transmission line mountain fire monitoring of carrying out and research and the enforcement of early warning technology can improve electric power and supply with reliability, reduce simultaneously the economic loss that national economy and grid company cause because of electric power accident.
At present, mainly contain video monitoring, infrared multispectral technology and laser radar technique for DC power transmission line mountain fire the method for monitoring.Yet Video Supervision Technique carries out image acquisition, analysis and the early warning in the multiple area of mountain fire, but the problem that this technology exists have the power consumption of camera own large, utilize GPRS network transmit image data amount many, the camera collection data are subjected to weather conditions closely related, under the weather conditions of night environment and dense fog, camera is judged the recognition capability decrease of mountain fire.The problem that the infrared multispectral technology exists at present has: the flame in the mountain fire situation is outwards launched infrared ray and the interference of solar radiation infrared spectrum that infrared spectrum is subject to the conductor overheating radiation, the infrared spectral characteristic difference that the starting material of while unlike material burn and launch, therefore transmission line of electricity is in again the environment that many combustibles different proportion mixes, and carrying out mountain fire through the infrared multispectral technology, to survey disturbing factor many.The problem that laser radar technique is carried out mountain fire detection existence has: the cost of laser radar is high, total leap distance of DC power transmission line, carrying out this technology for the mountain fire point layouts, cause holistic cost high, the laser radar detection zone is narrow and small simultaneously, can only survey zone very little under the circuit corridor, laser radar is subjected to trees and the Vegetation Effect of circuit below easily again, causes detection accuracy to descend.
Therefore for the shortcoming of the present technology of appeal, the utility model is under National 863 planning item fund (2012AA050209) is subsidized, and has proposed a kind of DC power transmission line mountain fire monitoring device based on the space ion current density.
The utility model content
The purpose of this utility model is to utilize the ion current density of monitoring DC power transmission line to survey circuit corridor mountain fire, improve the direct current transportation reliability, the mountain fire that applies to DC power transmission line is surveyed with early warning technology and is played an important role, provide a kind of old low, volume of transmitted data is little, low in energy consumption, a kind of DC power transmission line mountain fire monitoring device based on the space ion current density that reliability is high.
For realizing above purpose, the utility model has been taked following technical scheme: a kind of DC power transmission line mountain fire monitoring device based on the space ion current density, comprise for DC power transmission line and carry out ion current density, wind speed and direction, temperature, the ion current density of humidity and atmospheric pressure measurement and environmental parameter monitoring modular, be used for determining whether according to ion current density and environmental parameter judgement mountain fire and the warning module of mountain fire, be used for transmission early warning information and the communication module of accepting ion current density and environmental parameter monitoring modular status command, be used for receiving early warning information from communication module, the control center of control ion current density and each status command of environmental parameter monitoring modular and sound and light alarm instruction is used for notifying the operations staff to report the power scheduling personnel whether to determine inactive line or sending the line maintenance personnel to get rid of the sound and light alarm module of hidden danger according to the early warning information of control center's reception.
Described ion current density comprises accumulator with the environmental parameter monitoring modular and is connected and unites wind energy collector and the solar panel that charges a battery with it; Accumulator is connected respectively to filtering, amplification and collecting unit and data processing unit; Filtering, amplification and collecting unit one end are connected with wind speed wind direction sensor, temperature and moisture sensors, barometric pressure sensor, ion current density sensor, and the other end is connected with data processing unit; Wind energy collector, solar panel, accumulator, wind speed wind direction sensor, temperature and moisture sensors, barometric pressure sensor, ion current density installation of sensors are on overhead line structures.The sensor of wind speed and direction is used for measuring transmission line of electricity wind speed and direction on every side, and temperature and moisture sensors is used for the temperature and humidity around the measurement transmission line of electricity, and barometric pressure sensor is used for the atmospheric pressure around the measurement transmission line of electricity.
Described judgement mountain fire and warning module comprise that the data computing unit that is connected successively with data processing unit, mountain fire judge and prewarning unit, judge mountain fire and warning module based on
Formula calculates; Wherein, v is the wind speed that wind speed wind direction sensor is measured, θ
1Be the angle of wind speed wind direction sensor measuring wind and DC power transmission line, θ
2Installation angle for ion current density sensor and overhead line structures, the ion current density size that I provides for data processing unit, S is ion current density sensor sheet area, enter the data computing unit and calculate ion concentration ρ, when the value of ion concentration ρ during greater than 1e10, mountain fire and output alarm information are arranged near being judged to be.
Described communication module comprises terminal wireless communication unit, communication unit, the control center's wireless communication module that is connected with judgement mountain fire and warning module successively, and communication unit comprises Internet of Things, GSM, GPRS, power carrier, fibre optic data transmission mode.The early warning information of transmission mountain fire and warning module output, the status command of transmission control ion current density and the output of environmental parameter monitoring modular
Described control center one end connects control center's wireless communication module, and the other end connects access sound and light alarm module.Be used for receiving early warning information, control ion current density and environmental parameter monitoring modular status command and sound and light alarm instruction
Described sound and light alarm module is comprised of audible alarm and light prompting, and the data source of its alarm is by described control center binary channels parallel output.Ion current density computing unit according to image data, carrying out mountain fire according to ion current density judges and prewarning unit, warning information is sent to the terminal wireless communication unit of control center, the communication unit that is used for terminal wireless communication unit and control center's wireless communication module, the control center's wireless communication module that is used for receiving terminal radio communication unit data is used for the operator on duty of control center and notifies operator on duty's the supporting acousto-optic of main control system to remind peripheral hardware.
The utility model compared with prior art, have following advantage: operation and maintenance is convenient, can stablize carrying out the monitoring of the Essential Environment parameters such as wind speed, wind direction, temperature, humidity and atmospheric pressure around the DC power transmission line measuring point in the high-voltage operation, near the ion current density the measuring point that utilized the wind speed and direction Parameter Calculation, carry out near the judgement of the mountain fire transmission line of electricity according to ion current density, by radio communication unit warning message is sent to control center, in time points out the operator on duty through the acoustic and light information of supporting main control system.This technology has reflected that directly transmission line forest fire raises ambient air temperature to cause air heat free and cause the ion current density of line tripping.Avoided the mountain fire recognition capability decrease that the adverse weather condition such as environment and dense fog causes because of night.Than the infrared multispectral technology, this technology has improved the mountain fire recognition capability that infrared spectrum causes for unlike material simultaneously; Than laser radar technique, equipment manufacturing cost is low, need not specify monitoring mountain fire scope, and directly reflection causes the maximum ion current density that the mountain fire tripping operation needs simultaneously.Therefore this technology has increased substantially the decision-making ability of DC power transmission line mountain fire, as long as avoided the mistaken ideas that have mountain fire just to allow transmission line of electricity stop transport, more present technology has improved the transmission of electricity reliability.
Description of drawings
Fig. 1 is the system principle of this device;
Fig. 2 is the integral arrangement of this device;
Fig. 3 is the ion current density sensor;
Fig. 4 is power-switching circuit figure;
Fig. 5 is that data are processed and main control circuit figure;
Fig. 6 is clocking scheme.
Embodiment
Below in conjunction with the drawings and specific embodiments content of the present utility model is described in further details.
Embodiment:
See also shown in Figure 1, a kind of DC power transmission line mountain fire monitoring device based on the space ion current density, comprise, be used for DC power transmission line and carry out ion current density, wind speed and direction, temperature, the ion current density of humidity and atmospheric pressure measurement and environmental parameter monitoring modular, be used for determining whether according to ion current density and environmental parameter judgement mountain fire and the warning module of mountain fire, be used for transmission early warning information and the communication module of accepting ion current density and environmental parameter monitoring modular status command, be used for receiving early warning information from communication module, the control center of control ion current density and each status command of environmental parameter monitoring modular and sound and light alarm instruction is used for notifying the operations staff to report the power scheduling personnel whether to determine inactive line or sending the line maintenance personnel to get rid of the sound and light alarm module of hidden danger according to the early warning information of control center's reception
See also shown in Figure 2, wind energy collector 1 and solar panel 2 that described ion current density comprises accumulator 3 with the environmental parameter monitoring modular and is connected and unites accumulators 3 chargings with it; Accumulator 3 is connected respectively to filtering, amplification and collecting unit 9 and data processing unit 10, and these parts is carried out power supply supply with; Filtering, amplification and collecting unit 9 one ends are connected with wind speed wind direction sensor 5, temperature and moisture sensors 6, barometric pressure sensor 7, ion current density sensor 8, and the other end is connected with data processing unit 10; Wind energy collector 1, solar panel 2, accumulator 3, wind speed wind direction sensor 5, temperature and moisture sensors 6, barometric pressure sensor 7, ion current density sensor 8 are installed on the overhead line structures 4.
Judge that mountain fire and warning module comprise that the data computing unit 11, the mountain fire that are connected successively with data processing unit 10 judge and prewarning unit 12, judgement mountain fire and warning module based on
Formula calculates; Wherein, v is the wind speed that wind speed wind direction sensor (5) is measured, θ
1Be the angle of wind speed wind direction sensor 5 measuring wind and DC power transmission line, θ
2Be the installation angle of ion current density sensor 8 with overhead line structures 4, the ion current density size that I provides for data processing unit 10, S is ion current density sensor 8 surface areas, enter data computing unit 11 and calculate ion concentration ρ, when the value of ion concentration ρ during greater than 1e10, mountain fire and output alarm information are arranged near being judged to be.
Communication module comprises terminal wireless communication unit 13, communication unit 14, the control center's wireless communication module 15 that is connected with judgement mountain fire and warning module successively, and communication unit 14 comprises Internet of Things, GSM, GPRS, power carrier, fibre optic data transmission mode.
Fig. 3 is ion current density sensor 8, and its structure is comprised of the different square aluminium of inside and outside two length of sides or iron plate A1, A2 and middle clearance A3, and A1 and the whole device of A2 are fixed on insulating base and prevent that gas current from leaking simultaneously.Then the connection of ion current density sensor is as follows:
By ion current density sensor 8 being connected and being fixed on the overhead line structures 4, the signal output part of ion current density sensor 8 connects filtering, amplification and collecting unit 9.
Its technical characterstic is as follows:
1,1m * 1m is dull and stereotyped
2, transmission feature: wireless transmission
3, measurement range and resolution: ± 200.0nA, resolution 0.1nA
4, precision: 2.0%
5, interface: BNC
Because current density sensor 8 output signals are very faint, guaranteeing under the prerequisite of interference protection measure, must take to signal the measures such as amplification, filtering.Sampled signal enters before the data processing unit 10 in this device, first by filtering, amplification and collecting unit 9, first filtering and amplitude limit are realized in this unit, are amplified by the DSP CONTROL entering signal again, according to the input signal amplitude it are carried out the amplification of corresponding multiple.Acquisition units in filtering, amplification and the collecting unit 9 is by the microprocessor of 16 bit of accumulator, data flash memory, MSP430 series, 16 A/D converters, and signal translation and protection unit, electric power management circuit, watchdog circuit, wind speed wind direction sensor 5, temperature and moisture sensors 6, barometric pressure sensor 7, ion current density sensor 8 and other support circuits form.
Fig. 4 is power-switching circuit figure, end negative pole and a ground connection of access capacitor C 1 behind 5, the 6 pin short circuits of integrated circuit modules IC3, the other end of access capacitor C 1 is anodal behind the short circuit of integrated circuit modules IC3, a termination of access capacitor C 2 is anodal behind 2,3, the 4 pin short circuits of integrated circuit modules IC3, the other end ground connection of capacitor C 2.Power supply is converted into the device required voltage, for device provides a stable operating voltage, and reduces external interference to the impact of device.
Fig. 5 is that data are processed and main control circuit figure, integrated circuit modules IC1 operating voltage range 1.8～3.6V, and microprocessor can switch between various mode of operations easily.
1, mode of operation has high effective model: improve frequency of operation when finding mountain fire in monitoring.
2, normal mode: all are normal in this mode declaration pattern specification device work, and the circuit of monitoring occurs without abnormal conditions.
3, low-power consumption mode: device is in automatic protected mode.
Management function is that device can be according to the mode of operation of site specific adjusting gear, the optimum performance of development device.It utilizes the trend analysis technology according to ion current density and meteorologic parameter, with the historical data contrast, sends early warning signal.
Fig. 6 is clocking scheme, and 1 pin of integrated circuit modules IC7 is connected on the power supply VCC, and 2,3 pin are connected with the two ends of oscillator respectively, and 4 pin ground connection are on the data processing of pin 6,7,8 access Fig. 5 of clock circuit and 77,78,79 pins of main control circuit.Clock circuit provides a correct time for data collection station.
In sum, wind speed wind direction sensor 5, temperature and moisture sensors 6, barometric pressure sensor 7, ion current density sensor 8 are fixed in overhead line structures 4, and measure ion current density and surrounding environment parameter, these data are judged and prewarning unit 12, terminal wireless communication unit 13, communication unit 14, control center's wireless communication module 15, control center 16 through filtering, amplification and collecting unit 9, data processing unit 10, data computing unit 11, mountain fire successively.Finish judgement and the early warning of DC power transmission line mountain fire, processed warning information by audible alarm 17 and light prompting 18 notice operations at last.
The technical indicator of present embodiment is:
Mountain fire monitoring and the early warning of the DC power transmission line mountain fire of 1, the scope of application: 110kV-1100kV
2, data acquisition, analysis and dispensing device
The ■ antijamming capability is strong: anti-electromagnetic radiation disturbs, waterproof
■ measures frequency band: the signal that can measure 20-15000Hz;
■ is low in energy consumption: power consumption 4.2mA;
The ■ installation and maintenance is convenient: more present installation site reduces more than the 12m, and installs when circuit is charged
■ does not affect the stake resistance of shaft tower
3, system's characteristics
The ■ extendability is strong, can compatible circuit other function system
The DC power transmission line forest fire monitoring system is reserved multiple Standard Interface, be convenient to the line status monitoring systems such as compatible powerline ice-covering and dynamic compatibilization technology.Promote DC power transmission line state estimation, early warning and detection tactical level.
The data-interface of ■ standardization and public
The data-interface of system adopts the standard of standardization and public, can resolve the normal data that the different manufacturers terminal provides.
Many kinds of type of alarms of ■
Adopt the mode of auditory tone cues and vision location, notify the operations staff at once and grasp on-the-spot warning message
The ■ networking
System supports B/S structure and the inquiry of Web webpage, login and reports to the police and process
The interactively management of ■
Can inquire about the data message of circuit mountain fire in real time; The running status of self-defined control terminal comprises: data acquisition, standby, timed power on/off, dormancy etc.
■ is with strong points
For DC power transmission line mountain fire flash-over characteristic, its main cause is that mountain fire causes that air molecule heat is free, and present technique is directly reacted space ion concentration under the mountain fire state, is convenient to carry out line tripping early warning under the mountain fire state.
4, performance index
■ gas current range (unit: nA): ± 200;
■2.5mA。The device low-power consumption.
■ transmission mode: wireless
■ 45 days.Under overcast and rainy continuously condition, installed sustainable powered operation 45 days;
The ■ temperature measurement range :-30 ℃-+70 ℃, sensitivity: ± 0.5 ℃
■ moisture measurement scope: 1%-100%, sensitivity: ± 1%.
■ measuring wind speed scope: 0～70m/s, precision: ± (0.3+0.03V) m/s;
■ wind direction measurement range: 0～360 ° of precision: ± 3 °;
■ atmospheric pressure measurement scope: 800-100mbar precision: in the time of 20 ℃, ± 0.4mbar
■ is suitable for sea level elevation: below the 3200m.
■ operating system: WindowsXP, WincE, Linux etc.
■ complete machine serviceable life: 8 years
Above-listed detailed description is that this embodiment limits claim of the present utility model for the specifying of the utility model possible embodiments, and does not allly break away from the equivalence that the utility model does and implements or change, all should be contained in the claim of this case.
Claims (6)
1. DC power transmission line mountain fire monitoring device based on the space ion current density is characterized in that: comprises,
Be used for DC power transmission line and carry out ion current density, wind speed and direction, temperature, the ion current density of humidity and atmospheric pressure measurement and environmental parameter monitoring modular, be used for determining whether according to ion current density and environmental parameter judgement mountain fire and the warning module of mountain fire, be used for transmission early warning information and the communication module of accepting ion current density and environmental parameter monitoring modular status command, be used for receiving early warning information from communication module, the control center of control ion current density and each status command of environmental parameter monitoring modular and sound and light alarm instruction is used for notifying the operations staff to report the power scheduling personnel whether to determine inactive line or sending the line maintenance personnel to get rid of the sound and light alarm module of hidden danger according to the early warning information of control center's reception.
2. a kind of DC power transmission line mountain fire monitoring device based on the space ion current density according to claim 1 is characterized in that: wind energy collector (1) and solar panel (2) that described ion current density comprises accumulator (3) with the environmental parameter monitoring modular and is connected and unites accumulators (3) charging with it; Accumulator (3) is connected respectively to filtering, amplification and collecting unit (9) and data processing unit (10); Filtering, amplification and collecting unit (9) one ends are connected with wind speed wind direction sensor (5), temperature and moisture sensors (6), barometric pressure sensor (7), ion current density sensor (8), and the other end is connected with data processing unit (10); Wind energy collector (1), solar panel (2), accumulator (3), wind speed wind direction sensor (5), temperature and moisture sensors (6), barometric pressure sensor (7), ion current density sensor (8) are installed on the overhead line structures (4).
3. a kind of DC power transmission line mountain fire monitoring device based on the space ion current density according to claim 2, it is characterized in that: described judgement mountain fire and warning module comprise that the data computing unit (11) that is connected successively with data processing unit (10), mountain fire judge and prewarning unit (12), judge mountain fire and warning module based on
Formula calculates; Wherein, v is the wind speed that wind speed wind direction sensor (5) is measured, θ
1Be the angle of wind speed wind direction sensor (5) measuring wind and DC power transmission line, θ
2Be the installation angle of ion current density sensor (8) with overhead line structures (4), I is the ion current density size that data processing unit (10) provides, S is the surface area of ion current density sensor (8), enter data computing unit (11) and calculate ion concentration ρ suc as formula (1), when the value of ion concentration ρ during greater than 1e10, mountain fire and output alarm information are arranged near being judged to be.
4. a kind of DC power transmission line mountain fire monitoring device based on the space ion current density according to claim 1, it is characterized in that: described communication module comprises terminal wireless communication unit (13), communication unit (14), the control center's wireless communication module (15) that is connected with judgement mountain fire and warning module successively, and communication unit (14) comprises Internet of Things, GSM, GPRS, power carrier, fibre optic data transmission mode.
5. a kind of DC power transmission line mountain fire monitoring device based on the space ion current density according to claim 4, it is characterized in that: described control center (16) one ends connect control center's wireless communication module (15), and the other end connects access sound and light alarm module.
6. a kind of DC power transmission line mountain fire monitoring device based on the space ion current density according to claim 1, it is characterized in that: described sound and light alarm module is comprised of audible alarm (17) and light prompting (18), and the data source of its alarm is by described control center (16) binary channels parallel output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220287925 CN202711408U (en) | 2012-06-18 | 2012-06-18 | Ion spatial electric current density-based direct current transmission line mountain fire monitoring device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220287925 CN202711408U (en) | 2012-06-18 | 2012-06-18 | Ion spatial electric current density-based direct current transmission line mountain fire monitoring device |
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| CN202711408U true CN202711408U (en) | 2013-01-30 |
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| CN 201220287925 Withdrawn - After Issue CN202711408U (en) | 2012-06-18 | 2012-06-18 | Ion spatial electric current density-based direct current transmission line mountain fire monitoring device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102750799A (en) * | 2012-06-18 | 2012-10-24 | 中国南方电网有限责任公司超高压输电公司 | Ion spatial electric current density-based direct current transmission line mountain fire monitoring device |
| CN104535166A (en) * | 2014-12-05 | 2015-04-22 | 国家电网公司 | Iron tower vibration measurement and analysis system at night |
| CN108538011A (en) * | 2018-03-07 | 2018-09-14 | 北京宇航时代科技发展有限公司 | A kind of laser radar fire detection method |
-
2012
- 2012-06-18 CN CN 201220287925 patent/CN202711408U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102750799A (en) * | 2012-06-18 | 2012-10-24 | 中国南方电网有限责任公司超高压输电公司 | Ion spatial electric current density-based direct current transmission line mountain fire monitoring device |
| CN104535166A (en) * | 2014-12-05 | 2015-04-22 | 国家电网公司 | Iron tower vibration measurement and analysis system at night |
| CN104535166B (en) * | 2014-12-05 | 2017-08-04 | 国家电网公司 | Night steel tower vibration measurement analysis system |
| CN108538011A (en) * | 2018-03-07 | 2018-09-14 | 北京宇航时代科技发展有限公司 | A kind of laser radar fire detection method |
| CN108538011B (en) * | 2018-03-07 | 2020-12-15 | 北京宇航时代科技发展有限公司 | Laser radar fire detection method |
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Granted publication date: 20130130 Effective date of abandoning: 20140115 |
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