CN103278710A - Online monitoring system for power transmission line - Google Patents
Online monitoring system for power transmission line Download PDFInfo
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- CN103278710A CN103278710A CN2013101546901A CN201310154690A CN103278710A CN 103278710 A CN103278710 A CN 103278710A CN 2013101546901 A CN2013101546901 A CN 2013101546901A CN 201310154690 A CN201310154690 A CN 201310154690A CN 103278710 A CN103278710 A CN 103278710A
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- transmission line
- monitoring system
- switch cabinet
- voltage switch
- online monitoring
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Abstract
The invention discloses an online monitoring system for a power transmission line and relates to a wireless passive temperature measuring system for a high-voltage switch cabinet. The system is provided with a plurality of radio-frequency transmitting collector and sensors of which the quantity is matched with that of the radio-frequency transmitting collector, wherein a monitor is connected to the radio-frequency transmitting collector; a remote control center is connected to the monitor; the monitor comprises an analog/digital converting device, a central processing unit and a digital/analog converting device which are sequentially connected; a display unit is connected to the digital/analog converting device; an alarming device is connected to the central processing unit; and the remote control center consists of a data storage unit and a data display unit. The radio-frequency transmitting collector are used for transmitting signals and the sensors can be used for passively feeding back the signals, so that the temperature in the high-voltage switch cabinet can be measured accurately and timely and the safety is high; and in addition, the sensors in the high-voltage switch cabinet passively feed back the signals and are not influenced by an electric field and a magnetic field in the high-voltage switch cabinet, and thus measurement data are accurate. Power supply accidents due to overheat of the high-voltage switch cabinet are effectively avoided.
Description
Technical field
The present invention relates to a kind of transmission line online monitoring system.
Background technology
Transmission line of electricity is exposed to the field, and the boisterous influences such as sleet of calling prisoners in after letting them out for exercise usually various faults can take place.Transmission line of electricity breaks down and can cause the supply network partial paralysis, if can not in time find and repair this fault, brings heavy losses will for the national people's property.At present, usually seek the transmission line of electricity that may break down by the mode of manpower investigation, to realize repairing transmission line of electricity in advance, avoid causing power failure because it breaks down.
But, because the power transmission network area is big, economize on electricity is many, equipment is complicated, adopt the mode of manpower investigation to have following shortcoming:
1, transmission line of electricity distributes extensively, and because transmission line of electricity usually is arranged in the field, and traffic is poor, and road conditions are bad, investigation personnel can only rely on mode on foot to realize investigation, have increased investigation personnel's workload greatly.
2, the node that may break down is many, and the kind that may break down is many, utilizes the manpower investigation usually can slip the poor reliability of investigation.
3, investigate comprehensively, do not have specific aim, investigation efficient is poor.
4, once time of taking of investigation is long, is difficult in time pinpoint the problems, and causes problem to accumulate, even has an accident.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of transmission line online monitoring system that reduces investigation personnel workload, good reliability, investigation efficient height, can promptly and accurately pinpoint the problems, ensure power supply safety.
The present invention is achieved in that
A kind of transmission line online monitoring system, many group signal pickup assemblies are arranged, its special character is: it also is provided with a plurality of and the signal transmitting and receiving module mutual communication of signal pickup assembly, described signal transmitting and receiving module is connected with signal processing unit, described signal processing unit is connected with first modulator-demodular unit, described first modulator-demodular unit is connected with sender unit, described sender unit intercoms mutually with signal receiving device, described signal receiving device is connected with second modem, described second modem is connected with the PC main frame, and described PC main frame is connected with the CRT display module.
Described signal pickup assembly is voltage collecting device and current collecting device, to gather the voltage and current signal of transmission line of electricity.
Described signal transmitting and receiving module is the FR transceiver, the information that collects with accurate reception signal pickup assembly.
Described signal processing unit is single-chip microcomputer.
The invention has the beneficial effects as follows:
1, adopt CRT to show the line information that signal pickup assembly is gathered, avoided the investigation personnel to remove in-site measurement on foot, investigation personnel's workload is greatly diminished.
2, each node that may break down is equipped with signal pickup assembly, and image data is extensive comprehensively, can help the investigation personnel accurately to judge whether to break down, and the position of breaking down.
3, the metrical information abnormity point is carried out analytical review, with strong points, investigation efficient height.
4, once investigate the time weak point that takies, can in time discover problems and solve them, avoid accident to take place.
Description of drawings
Fig. 1 is connection diagram of the present invention.
Among the figure: signal pickup assembly 1, signal transmitting and receiving module 2, signal processing unit 3, the first modulator-demodular units 4, sender unit 5, signal receiving device 6, second modem 7, PC main frame 8, CRT display module 9.
Embodiment
As shown in the figure, this transmission line online monitoring system has many group signal pickup assemblies 1, and a plurality of and signal transmitting and receiving module 2 signal pickup assembly 1 mutual communication.In the present embodiment, described signal pickup assembly 1 is voltage collecting device and current collecting device, and described signal transmitting and receiving module 2 is the FR transceiver.Described signal transmitting and receiving module 2 is connected with signal processing unit 3, and in the present embodiment, described signal processing unit is single-chip microcomputer.Described signal processing unit 3 is connected with first modulator-demodular unit 4, described first modulator-demodular unit 4 is connected with sender unit 5, described sender unit 5 intercoms mutually with signal receiving device 6, described signal receiving device 6 is connected with second modem 7, described second modem 7 is connected with PC main frame 8, and described PC main frame 8 is connected with CRT display module 9.
During use, gathered electric current, the information of voltage of place circuit node by signal pickup assembly 1, and information sent to the FR transceiver, handle through single-chip microcomputer and first modulator-demodular unit 4, signal is sent to signal receiving device 6, and be passed to PC main frame 8, shown by CRT display module 9, so that the investigation personnel control.
Claims (4)
1. transmission line online monitoring system, many group signal pickup assemblies are arranged, it is characterized in that: it also is provided with a plurality of and the signal transmitting and receiving module mutual communication of signal pickup assembly, described signal transmitting and receiving module is connected with signal processing unit, described signal processing unit is connected with first modulator-demodular unit, described first modulator-demodular unit is connected with sender unit, described sender unit intercoms mutually with signal receiving device, described signal receiving device is connected with second modem, described second modem is connected with the PC main frame, and described PC main frame is connected with the CRT display module.
2. transmission line online monitoring system according to claim 1, it is characterized in that: described signal pickup assembly is voltage collecting device and current collecting device.
3. transmission line online monitoring system according to claim 1, it is characterized in that: described signal transmitting and receiving module is the FR transceiver, the information that collects with accurate reception signal pickup assembly.
4. transmission line online monitoring system according to claim 1, it is characterized in that: described signal processing unit is single-chip microcomputer.
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CN2013101546901A CN103278710A (en) | 2013-04-28 | 2013-04-28 | Online monitoring system for power transmission line |
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CN2013101546901A CN103278710A (en) | 2013-04-28 | 2013-04-28 | Online monitoring system for power transmission line |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104297630A (en) * | 2014-09-01 | 2015-01-21 | 国家电网公司 | Ranging and fault diagnosing device for overhead power transmission line on basis of magnetic field detection |
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CN203191488U (en) * | 2013-04-28 | 2013-09-11 | 国家电网公司 | Online monitoring system for power transmission line |
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CN102254413A (en) * | 2011-06-30 | 2011-11-23 | 大连大工安道船舶技术有限责任公司 | Wireless concentrated monitoring system for comprehensive state of cable |
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Publication number | Priority date | Publication date | Assignee | Title |
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CN104297630A (en) * | 2014-09-01 | 2015-01-21 | 国家电网公司 | Ranging and fault diagnosing device for overhead power transmission line on basis of magnetic field detection |
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Application publication date: 20130904 |