CN104484969A - Method and device for monitoring power transmission line - Google Patents
Method and device for monitoring power transmission line Download PDFInfo
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- CN104484969A CN104484969A CN201410758681.8A CN201410758681A CN104484969A CN 104484969 A CN104484969 A CN 104484969A CN 201410758681 A CN201410758681 A CN 201410758681A CN 104484969 A CN104484969 A CN 104484969A
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- intrusion target
- supervising
- transmission line
- invasion signal
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
- G08B13/189—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems
- G08B13/194—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems
- G08B13/196—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems using television cameras
- G08B13/19602—Image analysis to detect motion of the intruder, e.g. by frame subtraction
- G08B13/19613—Recognition of a predetermined image pattern or behaviour pattern indicating theft or intrusion
Abstract
The invention discloses a method and a device for monitoring a power transmission line. The method for monitoring the power transmission line comprises the following steps: detecting an invasion target in a three-dimensional space of the power transmission line and judging whether an invasion signal is generated according to a detection result; receiving the invasion signal and pre-warning; simultaneously transmitting pre-warning information through a wireless network; processing the pre-warning information. According to the method for monitoring the power transmission line, pre-warning is realized by receiving the invasion signal, so that a warning is sent out in time for the invasion target in the power transmission line area; the pre-warning information is transmitted while pre-warning, so that the alarm is realized in time, and thus accidents in the power transmission line are reduced.
Description
Technical field
The present invention relates to field of power, in particular to a kind of method for supervising and supervising device thereof of transmission line of electricity.
Background technology
Existing transmission line of electricity easily steals district because part is arranged at, flooded area, unfavorable geology district, circuit make a fire easy happen zone, under easily fly a kite district, circuit easily Fishing area, passage trees (bamboo) easily vitellarium, wire easily hang foreign matter area, the construction of circuit surrounding buildings etc. and are subject to the personnel such as outside destroy district, river, mountains and rivers and not easily arrive district, and the electric power environmental such as architecture against regulations easy happen zone territory, the impact of environment or foreign object invasion can be subject to and very easily have an accident, therefore needing to monitor generation with Accident prevention to transmission line of electricity.
The method for supervising of existing transmission line of electricity passes through on the shaft tower of dangerous point and image collecting device is installed in the position easily had an accident, realize monitoring the remote visible of intrusion target, and carried out the transmission of monitor message (signal and the picture collected) by mobile network, right place ground sends monitor message to monitoring backstage.Wherein, the transmission of monitor message uses wireless GPRS network to communicate with INTERNET network, carry out network data transmission by ICP/IP protocol, monitor message is passed in monitoring backstage, just can check each control point relevant information by access monitoring backstage; And utilize the supervising device of the transmission line of electricity of this method for supervising to rely on solar panels to power.
But, in the supervising device of existing transmission line of electricity, monitoring backstage needs the real-time observation situation of operator on duty, for people or the car of swarming into guard plot, corresponding measure can only be taked again after receiving the on-the-spot recorded video transmitted by mobile network, thus can not the generation of Accident prevention in time; Simultaneously, because the installation of watch-dog adopts sun power and battery-driven mode, thus need to monitor power line condition in real time, and real-time video transmission amount is to monitoring backstage, and then very easily produce the situation of electricity shortage, and in GPRS/3G expense, use this supervising device will produce huge campus network.
Summary of the invention
Fundamental purpose of the present invention is the method for supervising and the supervising device thereof that provide a kind of transmission line of electricity, to decrease the generation of accident in transmission line of electricity.
To achieve these goals, according to an aspect of the present invention, provide a kind of method for supervising of transmission line of electricity, this method for supervising comprises: detect the intrusion target in solid space residing for transmission line of electricity, and judges whether to produce invasion signal according to the result detected; Receive invasion signal and carry out early warning; Simultaneously by the information of wireless network transmissions early warning; And the information of early warning is processed.
Further, method for supervising also comprises and utilizes sun power and the watch-dog of wind energy to transmission line of electricity to power.
Further, detect intrusion target and judge whether that the step producing invasion signal comprises according to the result detected: the image gathering intrusion target; The image of intrusion target is analyzed; Judge whether to produce invasion signal according to analysis result.
Further, detect intrusion target and judge whether that the step producing invasion signal comprises according to the result detected: the information of detecting intrusion target; The information of intrusion target is converted to invasion signal.
Further, the information of intrusion target comprises body and the relative displacement of intrusion target.
Further, invasion signal is received and the step of carrying out early warning comprises: receive invasion signal and also open alarm module; Utilize alarm module to warn intrusion target and record is carried out to the scene of intrusion target.
Further, the information of early warning comprises the record at invasion signal and the scene to intrusion target.
To achieve these goals, according to an aspect of the present invention, provide a kind of supervising device of transmission line of electricity, this supervising device comprises: detecting unit, for detecting intrusion target in solid space residing for transmission line of electricity and judging whether to produce invasion signal according to the result detected; Prewarning unit, for receiving invasion signal and carrying out early warning; Communication unit, for the information by wireless network transmissions early warning; And processing unit, for processing the information of early warning.
Further, supervising device also comprises power supply unit, and power supply unit is powered for utilizing sun power and the watch-dog of wind energy to transmission line of electricity.
Further, detecting unit comprises: first detection module, for gathering the image of intrusion target, and analyzes the image of intrusion target, and judges whether to produce invasion signal according to analysis result; Second detection module, for the information of detecting intrusion target, and is converted to invasion signal by the information of intrusion target.
Further, prewarning unit comprises: alarm module, for warning intrusion target and carrying out record to the scene of intrusion target; Main control module, for receiving invasion signal and opening alarm module.
Further, first detection module comprises the first picture pick-up device and intelligent video analysis instrument; And second detection module comprise infrared eye, microwave detector and three mirror detectors.
Further, alarm module comprises audible-visual annunciator and the second picture pick-up device, and is provided with The Cloud Terrace in the second picture pick-up device.
Apply technical scheme of the present invention, the present invention adopts the intrusion target detected in solid space residing for transmission line of electricity, and judges whether to produce invasion signal according to the result detected; Receive invasion signal and carry out early warning; Simultaneously by the information of wireless network transmissions early warning; And the information of early warning is processed.By receiving invasion signal and carrying out early warning, thus warning can be sent in time to the intrusion target in transmission line of electricity region; And by transmitting the information of early warning while early warning, thus can report to the police in time, and then decrease the generation of accident in transmission line of electricity.
Accompanying drawing explanation
The Figure of description forming a application's part is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the process flow diagram of the method for supervising of transmission line of electricity according to the embodiment of the present invention; And
Fig. 2 is the schematic diagram of the supervising device of transmission line of electricity according to the embodiment of the present invention.
Embodiment
The present invention program is understood better in order to make those skilled in the art person, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the embodiment of a part of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, should belong to the scope of protection of the invention.
It should be noted that, term " first ", " second " etc. in instructions of the present invention and claims and above-mentioned accompanying drawing are for distinguishing similar object, and need not be used for describing specific order or precedence.Should be appreciated that the data used like this can be exchanged in the appropriate case, so as embodiments of the invention described herein can with except here diagram or describe those except order implement.In addition, term " comprises " and " having " and their any distortion, intention is to cover not exclusive comprising, such as, contain those steps or unit that the process of series of steps or unit, method, system, product or equipment is not necessarily limited to clearly list, but can comprise clearly do not list or for intrinsic other step of these processes, method, product or equipment or unit.
When not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.
Embodiment 1
According to the embodiment of the present invention, provide a kind of embodiment of the method that can implement by the application's device embodiment or perform, it should be noted that, can perform in the computer system of such as one group of computer executable instructions in the step shown in the process flow diagram of accompanying drawing, and, although show logical order in flow charts, in some cases, can be different from the step shown or described by order execution herein.
According to the embodiment of the present invention, provide a kind of method for supervising of transmission line of electricity, below concrete introduction done to the method for supervising of the transmission line of electricity that the embodiment of the present invention provides:
Fig. 1 is the process flow diagram of the method for supervising of transmission line of electricity according to the embodiment of the present invention, and as shown in Figure 1, the method for supervising of this transmission line of electricity mainly comprises following step S102 to step S108:
S102: detect the intrusion target in solid space residing for transmission line of electricity, and judge whether to produce invasion signal according to the result detected.Particularly, the appearance of intrusion target and kind are judged: when invading without external force, stable monitoring state only detected; If there is intrusion target to enter solid space residing for transmission line of electricity, just can break the steady state (SS) of this solid space, thus produce and export invasion signal.
S104: receive invasion signal and carry out early warning.Particularly, after receiving invasion signal, alarm module will be opened.After receiving invasion signal, utilize alarm module to warn intrusion target, thus play the effect such as fright larceny, warning short accident.Above-mentioned alarm module can act on the solid space of remote a, wide region, thus can realize warning and early warning before external force is to broken wire, by accident prevention in possible trouble.
S106: by the information of wireless network transmissions early warning.Particularly, the information (the live video data of the intrusion target of collection) of early warning utilizes radio communication to transmit.Above-mentioned radio communication can adopt GPRS/CDMA/3G network.
S108: the information of early warning is processed.Particularly, receive the early warning information of wireless communication transmissions, and take corresponding treatment measures according to early warning information.The early warning information received is the live video data by GPRS/CDMA/3G Internet Transmission, and this early warning information is supplied to monitor staff and checks, thus monitor staff is judged field condition, and then makes corresponding treatment measures.
The method for supervising of the transmission line of electricity that the embodiment of the present invention provides, by receiving invasion signal and carrying out early warning, thus can send warning to the intrusion target in transmission line of electricity region in time; And by transmitting the information of early warning while early warning, thus can report to the police in time, and then decrease the generation of accident in transmission line of electricity.
Preferably, in embodiments of the present invention, method for supervising also comprises and utilizes sun power and the watch-dog of wind energy to transmission line of electricity to power.Due to the constraint by time and region, be difficult to round-the-clockly utilize sun power and wind energy resources, and sun power and wind energy have very strong complementarity in time and geographically, when daylight is strong, wind is little; When night, illumination was weak, wind energy strengthens because earth's surface difference variation is large, therefore utilizes sun power and the watch-dog of wind energy to transmission line of electricity to power, can utilize the complementation in time of sun power and wind energy, realizes the round-the-clock utilization to sun power and wind energy.
In embodiments of the present invention, detect intrusion target and judge whether that the step producing invasion signal can comprise according to the result detected: the image gathering intrusion target; The image of intrusion target is analyzed; Judge whether to produce invasion signal according to analysis result.Wherein, device for detecting can comprise autodetector, autodetector can monitor the video be attached thereto, in discovery intrusion target (swarm into specific region if any external force, cross enclosure wall, cross over trip wire etc.) time, the video image of the intrusion target collected is analyzed, determine that intrusion target can cause during danger and produce invasion signal.
In embodiments of the present invention, detect intrusion target and judge whether that the step producing invasion signal can comprise according to the result detected: the information of detecting intrusion target; The information of intrusion target is converted to invasion signal.Wherein, also for the device detected the information of intrusion target detected in time and identified, thus realizing accurately exporting invasion signal.
In embodiments of the present invention, invasion signal is received and the step of carrying out early warning comprises: receive invasion signal and also open alarm module; Utilize alarm module to warn intrusion target and record is carried out to the scene of intrusion target.Wherein, after receiving invasion signal, open alarm module, and by alarm module, intrusion event such as theft, the crane short etc. that intrusion target causes are warned, play the effect such as fright larceny, warning short accident; Meanwhile, recorded a video by alarm module capture site state.Above-mentioned alarm module can act on the solid space of remote a, wide region, thus can realize warning and early warning before external force is to broken wire, with the generation of Accident prevention.
Particularly, in embodiments of the present invention, the information of early warning can comprise the record at invasion signal and the scene to intrusion target.Thus invaded the record at signal and the scene to intrusion target by wireless network transmissions, and input is invaded signal and processed the record at the scene of intrusion target.Wherein, this input is invaded signal and is produced by judging the intrusion target in solid space residing for the transmission line of electricity detected; This record utilizes alarm module to carry out capture site state and carries out recording a video and producing.
It should be noted that, for aforesaid each embodiment of the method, in order to simple description, therefore it is all expressed as a series of combination of actions, but those skilled in the art should know, the present invention is not by the restriction of described sequence of movement, because according to the present invention, some step can adopt other orders or carry out simultaneously.Secondly, those skilled in the art also should know, the embodiment described in instructions all belongs to preferred embodiment, and involved action and module might not be that the present invention is necessary.
Through the above description of the embodiments, those skilled in the art can be well understood to the mode that can add required general hardware platform by software according to the method for above-described embodiment and realize, hardware can certainly be passed through, but in a lot of situation, the former is better embodiment.Based on such understanding, technical scheme of the present invention can embody with the form of software product the part that prior art contributes in essence in other words, this computer software product is stored in a storage medium (as ROM/RAM, magnetic disc, CD), comprising some instructions in order to make a station terminal equipment (can be mobile phone, computing machine, server, or the network equipment etc.) perform the method for each embodiment of the present invention.
Embodiment 2
According to the embodiment of the present invention, additionally provide a kind of supervising device of transmission line of electricity of the method for supervising for implementing above-mentioned transmission line of electricity, the supervising device of this transmission line of electricity is mainly used in the method for supervising performing the transmission line of electricity that embodiment of the present invention foregoing provides, and does concrete introduction below to the supervising device of the transmission line of electricity that the embodiment of the present invention provides:
Fig. 2 is the schematic diagram of the control device of air conditioner according to the embodiment of the present invention, and as shown in Figure 2, the supervising device of this transmission line of electricity mainly comprises detecting unit 10, prewarning unit 20, communication unit 30 and processing unit 40, wherein:
Detecting unit 10 is for detecting intrusion target in solid space residing for transmission line of electricity and judging whether to produce invasion signal according to the result detected.Particularly, this detecting unit 10 can comprise a floor-mounted camera and a platform intelligent video analyser, and floor-mounted camera is often opened, and the vision signal as intelligent video analysis instrument inputs.The vision signal of intelligent video analysis instrument does not need to be transferred to backstage.Wherein, intelligent video analysis instrument is for exporting invasion signal: when invading without external force, and intelligent video analysis instrument is in stable monitoring state.If there is intrusion target to enter solid space residing for transmission line of electricity, just can break the steady state (SS) of this solid space, intelligent video analysis instrument is by the change of pixel, and the optimum configurations of binding analysis instrument inside, as translational speed, article size etc., this change transitions is become invasion signal.Meanwhile, in above-mentioned steps, can also comprise theft-proof sensor for the device detected, this theft-proof sensor is used for accurately exporting invasion signal.
Prewarning unit 20 is for receiving invasion signal and carrying out early warning.Particularly, this prewarning unit 20 comprises alarm module, utilizes alarm module to warn intrusion target, thus plays the effect such as fright larceny, warning short accident; Meanwhile, utilize alarm module capture site state and record a video.Above-mentioned alarm module can act on the solid space of remote a, wide region, thus can realize warning and early warning before external force is to broken wire, by accident prevention in possible trouble.
Communication unit 30 is for the information by wireless network transmissions early warning.Particularly, this communication unit 30 comprises GPRS/CDMA/3G network, and the information (the live video data of the intrusion target of collection) of early warning adopts GPRS/CDMA/3G network to transmit.
Processing unit 40 is for processing the information of early warning.Particularly, this processing unit 40 comprises Surveillance center, and this Surveillance center receives the live video data by GPRS/CDMA/3G Internet Transmission, checks, thus monitor staff is judged field condition, and then make corresponding treatment measures for monitor staff.
The supervising device of the transmission line of electricity that the embodiment of the present invention provides, by receiving invasion signal and carrying out early warning, thus can send warning to the intrusion target in transmission line of electricity region in time; And by transmitting the information of early warning while early warning, thus can report to the police in time, and then decrease the generation of accident in transmission line of electricity.
Preferably, in embodiments of the present invention, supervising device also comprises power supply unit, and power supply unit is powered for utilizing sun power and the watch-dog of wind energy to transmission line of electricity.Due to the constraint by time and region, be difficult to round-the-clockly utilize sun power and wind energy resources, and sun power and wind energy have very strong complementarity in time and geographically, when daylight is strong, wind is little; When night, illumination was weak, wind energy strengthens because earth's surface difference variation is large, therefore wind-photovoltaic complementary power supply system is adopted, this wind-photovoltaic complementary power supply system is made up of aerogenerator, photovoltaic cell, complementary controller, silicon energy storage device, thus the complementation in time of sun power and wind energy can be utilized, realize the round-the-clock utilization to sun power and wind energy.
In embodiments of the present invention, detecting unit 10 can comprise: first detection module, for gathering the image of intrusion target, and analyzes the image of intrusion target, and judges whether to produce invasion signal according to analysis result; Second detection module, for the information of detecting intrusion target, and is converted to invasion signal by the information of intrusion target.Preferably, first detection module 10 comprises a floor-mounted camera and a platform intelligent video analyser, autodetector is used as by this intelligent video analysis instrument, the video be attached thereto can being monitored, producing invasion signal when there is intrusion target (swarm into specific region if any external force, cross enclosure wall, cross over trip wire etc.).User sets the object and region that will detect by custom rule and directed standard.Only need an intelligent video analysis instrument to provide the mixed video of analog video and IP video flowing two kinds of forms to export to network system simultaneously.In the video exported, picture superposes figure part and represent and detect abnormal region.
At above-mentioned preferably embodiment, the second detection module can also comprise theft-proof sensor, and this theft-proof sensor can include infrared eye, microwave detector and three mirror detectors.And, this theft-proof sensor utilizes the phased array radar science and technology at two microwave M RD-PLUS moving state identification technology and tip detect the information of intrusion target and identify, the interference source such as to rock of the hanger such as trees, clothing can be identified completely, stop wrong report, thus can accurately export invasion signal; Wherein, the information of this intrusion target can comprise body and relative displacement.
In embodiments of the present invention, prewarning unit 20 comprises: alarm module, for warning intrusion target and carrying out record to the scene of intrusion target; Main control module, for receiving invasion signal and opening alarm module.Preferably, alarm module comprises audible-visual annunciator and is provided with the speed dome camera of The Cloud Terrace.After receiving invasion signal, open audible-visual annunciator, by sound and light of alarm, intrusion event such as theft, the crane short etc. that intrusion target causes are warned, play the effect such as fright larceny, warning short accident; Meanwhile, speed dome camera will go to the site of the accident, and open video acquisition processing module capture site state and record a video.Above-mentioned alarm module can act on the solid space of remote a, wide region, thus can realize warning before external force is to broken wire, and utilizes audible-visual annunciator to realize early warning, with the generation of Accident prevention.
From above description, can find out, the above embodiments of the present invention achieve following technique effect: the present invention is by receiving invasion signal and carrying out early warning, thus warning can be sent in time to the intrusion target in transmission line of electricity region, and by transmitting the information of early warning while early warning, thus can report to the police in time, and then decrease the generation of accident in transmission line of electricity; Further, the present invention powers by utilizing sun power and the watch-dog of wind energy to transmission line of electricity, achieves and can carry out when powering sufficient the monitoring of transmission line of electricity.
Obviously, those skilled in the art should be understood that, above-mentioned of the present invention each module or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on network that multiple calculation element forms, alternatively, they can realize with the executable program code of calculation element, thus, they can be stored and be performed by calculation element in the storage device, or they are made into each integrated circuit modules respectively, or the multiple module in them or step are made into single integrated circuit module to realize.Like this, the present invention is not restricted to any specific hardware and software combination.
These are only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (13)
1. a method for supervising for transmission line of electricity, is characterized in that, comprising:
Detect the intrusion target in solid space residing for transmission line of electricity, and judge whether to produce invasion signal according to the result of described detection;
Receive described invasion signal and carry out early warning; Simultaneously
By the information of early warning described in wireless network transmissions; And
The information of described early warning is processed.
2. method for supervising according to claim 1, is characterized in that, described method for supervising also comprises and utilizes sun power and the watch-dog of wind energy to transmission line of electricity to power.
3. method for supervising according to claim 1, is characterized in that, detects described intrusion target and judges whether that the step producing invasion signal comprises according to the result of described detection:
Gather the image of described intrusion target;
The image of described intrusion target is analyzed;
Judge whether to produce described invasion signal according to analysis result.
4. method for supervising according to claim 3, is characterized in that, detects described intrusion target and judges whether that the step producing invasion signal comprises according to the result of described detection:
Detect the information of described intrusion target;
The information of described intrusion target is converted to described invasion signal.
5. method for supervising according to claim 4, is characterized in that, the information of described intrusion target comprises body and the relative displacement of described intrusion target.
6. method for supervising according to claim 1, is characterized in that, receives described invasion signal and the step of carrying out early warning comprises:
Receive described invasion signal and open alarm module;
Utilize described alarm module to warn intrusion target and record is carried out to the scene of described intrusion target.
7. method for supervising according to claim 6, is characterized in that, the information of described early warning comprises the described record at described invasion signal and the scene to described intrusion target.
8. a supervising device for transmission line of electricity, is characterized in that, comprising:
Detecting unit, for detecting intrusion target in solid space residing for transmission line of electricity and judging whether to produce invasion signal according to the result of described detection;
Prewarning unit, for receiving described invasion signal and carrying out early warning;
Communication unit, for the information by early warning described in wireless network transmissions; And
Processing unit, for processing the information of described early warning.
9. supervising device according to claim 8, is characterized in that, described supervising device also comprises power supply unit, and described power supply unit is powered for utilizing sun power and the watch-dog of wind energy to transmission line of electricity.
10. supervising device according to claim 8, is characterized in that, described detecting unit comprises:
First detection module, for gathering the image of described intrusion target, and analyzes the image of described intrusion target, and judges whether to produce described invasion signal according to analysis result;
Second detection module, for detecting the information of described intrusion target, and is converted to described invasion signal by the information of described intrusion target.
11. supervising devices according to claim 8, is characterized in that, described prewarning unit comprises:
Alarm module, for warning described intrusion target and carrying out record to the scene of described intrusion target;
Main control module, for receiving described invasion signal and opening described alarm module.
12. supervising devices according to claim 10, is characterized in that,
Described first detection module comprises the first picture pick-up device and intelligent video analysis instrument; And
Described second detection module comprises infrared eye, microwave detector and three mirror detectors.
13. supervising devices according to claim 11, is characterized in that, described alarm module comprises audible-visual annunciator and the second picture pick-up device, and are provided with The Cloud Terrace in described second picture pick-up device.
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| CN107610389A (en) * | 2017-09-12 | 2018-01-19 | 中广热点云科技有限公司 | A kind of monitoring method of broadcast and TV radiating station |
| CN110992623A (en) * | 2019-12-02 | 2020-04-10 | 国网四川省电力公司德阳供电公司 | Environment monitoring and warning device under high-voltage line |
| CN111429600A (en) * | 2020-03-28 | 2020-07-17 | 国网河南省电力公司偃师市供电公司 | Active early warning type external damage prevention dangerous point control method for power transmission and distribution line |
| CN112598865A (en) * | 2020-12-14 | 2021-04-02 | 深圳供电局有限公司 | Monitoring method and system for preventing cable line from being damaged by external force |
| CN112598865B (en) * | 2020-12-14 | 2023-03-03 | 深圳供电局有限公司 | Monitoring method and system for preventing cable line from being damaged by external force |
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Application publication date: 20150401 |