CN201860170U - System for monitoring and protecting high-voltage transmission equipment - Google Patents
System for monitoring and protecting high-voltage transmission equipment Download PDFInfo
- Publication number
- CN201860170U CN201860170U CN2010202892354U CN201020289235U CN201860170U CN 201860170 U CN201860170 U CN 201860170U CN 2010202892354 U CN2010202892354 U CN 2010202892354U CN 201020289235 U CN201020289235 U CN 201020289235U CN 201860170 U CN201860170 U CN 201860170U
- Authority
- CN
- China
- Prior art keywords
- signal
- supervising device
- target
- detection system
- tension line
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The embodiment of the utility model discloses a system for monitoring and protecting high-voltage transmission equipment. The system comprises a detecting system and a background processing system, wherein the detecting system is arranged on a high-voltage transmission tower for detecting a target signal in a monitored area of the high-voltage transmission equipment and analyzing and processing the detected the target signal, so as to obtain a target characteristic signal; and the background processing system is connected with the detecting system for judging whether the monitored area is normal according to the target characteristic signal obtained by the detecting system. By adopting the system, an invasion target around the high-voltage transmission equipment can be monitored accurately, effectively, and intelligently, so as to facilitate the real time processing to the invasion target and improve practicability.
Description
Technical field
The utility model relates to the electrical management technical field, relates in particular to a kind of monitoring and guard system of high voltage power transmission equipment.
Background technology
At present, high voltage power transmission equipment (high-tension line tower equipment and on high-voltage line) generally is placed in the spacious level land or hill, the heavy mechanical equipment of field work, during as crane or excavator process high voltage power transmission equipment, may cause the interruption of high-tension line and the damage of high-tension line tower equipment because of huge touching of mechanical arm; Secondly, the trees that are in growth period also may be invaded the scope of high-tension line tower equipment and the high-voltage line on it, thereby disturb the normal operation of high voltage power transmission equipment; In addition, when foreign material such as kite or polybag descend slowly and lightly on high-tension line tower equipment or high-voltage line, also the line tripping of high voltage power transmission equipment be may cause, thereby the work of high-tension line tower equipment and the circuit transmission of high-voltage line influenced; Simultaneously, high-tension line tower equipment also exists some artificial malice to damage, and therefore, how to realize effectively that the monitoring and the protection of high voltage power transmission equipment (high-tension line tower and on high-voltage line) becomes a problem demanding prompt solution.
Existing the monitoring of high voltage power transmission equipment and the scheme of protection are mainly contained two kinds, one is: on high voltage power transmission equipment protective cover is installed, is caused the short circuit tripping operation of high-voltage line to the line facility to avoid foreign material to descend slowly and lightly; Though this kind scheme is protected high voltage power transmission equipment to a certain extent, it has strengthened the heavy burden of high voltage power transmission equipment, and this scheme can't in time clear up foreign material, and practicality is lower; It two is: some simple supervising devices are installed on some high voltage power transmission equipment, such as: video monitoring equipment, the advantage of this scheme is and can obtains corresponding monitoring image by the means that grasp that particularly when the people carried out the malice damage, this scheme relatively was beneficial to the monitoring evidence obtaining; The defective of this kind scheme is: be subjected to the influence of environment (such as daytime, night, bad weather) and disturb bigger, can't obtain real-time monitor message accurately, thereby make the processing in later stage and judgement be subjected to very big influence, and this scheme adopts video monitoring equipment, cost is higher, has reduced practicality.
The utility model content
The utility model embodiment technical problem to be solved is, a kind of monitoring and guard system of high voltage power transmission equipment are provided, cost is lower, and the intrusion target that occurs around the high voltage power transmission equipment that monitors that can be accurate and effective, intelligent, and be beneficial to intrusion target is handled in real time, improve practicality.
In order to solve the problems of the technologies described above, the utility model embodiment provides a kind of monitoring and guard system of high voltage power transmission equipment, comprising:
Detection system is located at the high-tension line tower place, and it surveys the interior echo signal of guarded region of high voltage power transmission equipment, and the described echo signal that detects is carried out analyzing and processing, obtains the target signature signal;
Background processing system is connected with described detection system, and it judges according to the target signature signal that described detection system obtains whether described guarded region is unusual;
Wherein, described detection system comprises: be located at the supervising device at high-tension line tower place, the signal processing apparatus that is connected with described monitoring, and the microcontroller MCU that is connected with described signal processing apparatus with described supervising device;
Described background processing system comprises: background data base, and the monitor supervision platform that is connected with described background data base with described detection system.
Wherein, described supervising device is located at the high-tension line tower place, and it surveys the interior echo signal of guarded region of high voltage power transmission equipment;
Described signal processing apparatus is connected with described supervising device, and the echo signal that described supervising device detects is carried out analyzing and processing, obtains the target signature signal;
Described MCU (Micro Control Unit, microcontroller), be connected with described signal processing apparatus with described supervising device, it controls the work of described supervising device and described signal processing apparatus, and dispatches and transmit the described target signature signal that described signal processing means processes obtains.
Wherein, described supervising device is with in the lower device any one or more: the electromagnetism supervising device, and infrared supervising device and sound wave supervising device, wherein, described electromagnetism supervising device comprises the radar monitoring device;
When described supervising device was the radar monitoring device, described radar monitoring device comprised at least one plane doppler radar sensor;
Described plane doppler radar sensor, be fixedly installed in described high-tension line tower place, the zone that the radar beam of its emission covers is the guarded region of high voltage power transmission equipment, described guarded region comprises: the part of described high-tension line tower, and/or the part of the high-voltage line on the described high-tension line tower, and/or the part of another high-tension line tower adjacent with described high-tension line tower;
Described plane doppler radar sensor is connected with described MCU, and it carries out directional detection or scanning probe in real time to described guarded region under the control of described MCU, obtains object appearing signal in the described guarded region.
Wherein, described signal processing apparatus comprises:
Filter is connected interference signal that the echo signal that filtering is obtained described supervising device is disturbed and noise signal with described supervising device;
Amplifier is connected with described filter, and the echo signal that described filter leaches is carried out processing and amplifying;
AD (Analog-to-Digital conversion, analog to digital converter) is connected with described amplifier, and the echo signal after the described processing and amplifying is carried out ultra high speed A and sampling;
DSP (Digital Signal Processor, digital signal processing device) is connected with described AD, reads sampled data in real time from AD, and described sampled data is carried out quick calculation process, obtains the target signature signal.
Wherein, described detection system also comprises:
Memory, be connected with described supervising device, described signal processing apparatus and described MCU, store the described target signature signal that echo signal that described supervising device obtains and described signal processing means processes obtain, and the described echo signal that will store and described target signature signal call for described MCU;
Communication interface is connected with described MCU, and it is passed to described background processing system with the described target signature signal of storing in the described memory under the calling of described MCU;
Supply unit, be connected with described supervising device, described signal processing apparatus, described MCU, described memory and described communication interface, for described supervising device, described signal processing apparatus, described MCU, described memory and described communication interface provide the continuous firing power supply.
Wherein, described detection system also comprises:
Video-unit is connected with described communication interface with described MCU, takes the picture of described guarded region in real time, and under the control of described MCU, the picture of taking is passed to described background processing system by described communication interface.
Wherein, described detection system also comprises:
Alarm is connected with described MCU, and it sends warning under the control of described MCU, so that the target that detects is given a warning.
Wherein, described background data base is used for storing in advance polytype target and the pairing characteristic signal of each target;
Described monitor supervision platform, be connected with described background data base with described detection system, the described target signature signal that obtains according to described detection system, calling the characteristic signal that prestores in the described background data base compares, judge whether described guarded region is unusual, and when judging that described guarded region is unusual, determine the type of the target that detects in the described guarded region.
Wherein, described background processing system also comprises:
Alarm is connected with described monitor supervision platform, and after described monitor supervision platform was judged that described guarded region is unusual or determined the type of described target, described alarm sent warning under the control of described monitor supervision platform.
Wherein, the monitoring and the guard system of described high voltage power transmission equipment also comprise: screening arrangement, be connected with described detection system, but its filtering is to the low frequency electrical interference of described detection system.
Implement the utility model embodiment, have following beneficial effect:
The ripple of radar wave and other frequency ranges except that radar wave), mode such as infrared waves, sound wave carries out the monitoring of the intrusion target of high voltage power transmission equipment 1, the utility model embodiment adopts electromagnetic wave (to comprise:, cost is lower, and be not subject to Effect of Environmental, and can carry out multiple mounting means to supervising device according to actual needs, improved the accuracy of surveying;
2, the utility model embodiment at first carries out analyzing and processing on the spot with the data that detection system detects, and filters out effective target signature signal, has reduced the processing pressure of background processing system, has improved treatment effeciency;
3, the utility model embodiment with detection system on the spot the effective target characteristic signal that obtains of analyzing and processing be sent to the background processing system processing that compares, the staff who helps background processing system monitors processing in real time to various intrusion target, has improved practicality.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of first embodiment of the monitoring of high voltage power transmission equipment of the present utility model and guard system;
Fig. 2 is the structural representation of second embodiment of the monitoring of high voltage power transmission equipment of the present utility model and guard system;
Fig. 3 is the structural representation of first embodiment of detection system of the present utility model;
Fig. 4 is the first effect schematic diagram of first embodiment of radar monitoring Unit Installation of the present utility model;
Fig. 5 is the second effect schematic diagram of first embodiment of radar monitoring Unit Installation of the present utility model;
Fig. 6 is the effect schematic diagram of second embodiment of radar monitoring Unit Installation of the present utility model;
Fig. 7 is the first effect schematic diagram of the 3rd embodiment of radar monitoring Unit Installation of the present utility model;
Fig. 8 is the second effect schematic diagram of the 3rd embodiment of radar monitoring Unit Installation of the present utility model;
Fig. 9 is the effect schematic diagram of the 4th embodiment of radar monitoring Unit Installation of the present utility model;
Figure 10 is the effect schematic diagram of the 5th embodiment of radar monitoring Unit Installation of the present utility model;
Figure 11 is the effect schematic diagram of the 6th embodiment of radar monitoring Unit Installation of the present utility model;
Figure 12 is the first effect schematic diagram of the 7th embodiment of radar monitoring Unit Installation of the present utility model;
Figure 13 is the second effect schematic diagram of the 7th embodiment of radar monitoring Unit Installation of the present utility model;
Figure 14 is the structural representation of the embodiment of signal processing apparatus of the present utility model;
Figure 15 is the structural representation of second embodiment of detection system of the present utility model;
Figure 16 is the structural representation of the 3rd embodiment of detection system of the present utility model;
Figure 17 is the structural representation of first embodiment of background processing system of the present utility model;
Figure 18 is the structural representation of second embodiment of background processing system of the present utility model.
Embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
See also Fig. 1, be the structural representation of first embodiment of the monitoring of high voltage power transmission equipment of the present utility model and guard system; Described system comprises:
In the specific implementation, the ripple of radar wave and other frequency ranges except that radar wave), mode such as infrared waves, sound wave surveys and monitor high voltage power transmission equipment described detection system 10 can adopt electromagnetic wave (to comprise:, the emitter of various ripples (promptly being used to survey the device of monitoring) is fixedly installed in the high-tension line tower place, such as: can be fixedly installed on the tower arm or body of the tower of high-tension line tower; For another example: can be near high-tension line tower erection bracket, the emitter of various ripples is fixedly installed on the support that sets up.The guarded region of high voltage power transmission equipment has been determined in the zone that the wave beam of the emitter emission of the various ripples in the detection system 10 covers, promptly determined the search coverage of described detection system 10, wherein, the guarded region that described wave beam is determined can comprise: the part of described high-tension line tower, and/or the part of the high-voltage line on the described high-tension line tower, and/or the part of another high-tension line tower adjacent with described high-tension line tower.Described detection system 10, utilize the emitter of various ripples, the continual detection in guarded region (directional detection or scanning probe in real time), when the target invasion is arranged in the guarded region, can receive the reflected wave of intrusion target, this reflected wave is the echo signal of the intrusion target that detects, described detection system 10 also needs the echo signal of the intrusion target that detects is carried out analyzing and processing on the spot, obtain the characteristic signal of described intrusion target, and this target signature signal is sent to described background processing system 20 is further processed.
In the specific implementation, described background processing system 20 is at first called the characteristic signal that self prestores, the target signature signal that described detection system 10 is transmitted compares, if described background processing system 20 is behind compare of analysis, determine detection system 10 target signature signal that transmits and the characteristic signal that prestores be complementary (same or similar), then judge adventurous target invasion in the guarded region, judge that then guarded region is unusual; Further, described background processing system 20 is determined the type of intrusion target also according to comparison result, and the monitor staff who is beneficial to background processing system 20 handles in real time at intrusion target.Target signature signal that transmits and the characteristic signal that prestores do not match if described background processing system 20 behind compare of analysis, is determined detection system 10, then judge non-hazardous target invasion in the guarded region, judge that guarded region is normal.
In the specific implementation, described detection system 10 is connected by wired or wireless mode with described background processing system 20, taking into account system cost problem, preferably, described detection system 10 and described background processing system 20 are connected by wireless mode, adopt radio transmitting device to carry out alternately, such as: described detection system 10 can adopt GPRS (General Packet Radio Service, the general packet radio service technology) or CDMA (Code Division Multiple Access, code division multiple access) etc. radio transmitting device transfers to background processing system 20 with its target signature signal that obtains.Be understandable that described background processing system 20 also can send corresponding processing command in real time to described detection system 10 by radio transmitting devices such as GPRS or CDMA.
The utility model embodiment at first carries out analyzing and processing on the spot with the data that detection system detects, and filters out effective target signature signal, has reduced the processing pressure of background processing system, has improved treatment effeciency; The utility model embodiment with detection system on the spot the effective target characteristic signal that obtains of analyzing and processing be sent to background processing system and carry out analyzing and processing, the staff who helps background processing system monitors processing in real time to various intrusion target, has improved practicality.
See also Fig. 2, be the structural representation of first embodiment of the monitoring of high voltage power transmission equipment of the present utility model and guard system; Identical with a last embodiment, described system comprises: detection system 10 and background processing system 20.In the present embodiment, described system also comprises:
Screening arrangement 30 is connected with described detection system 10, is used for the low frequency electrical interference of filtering to described detection system 10, mainly is the low frequency electrical interference of filtering to each device in the described detection system 10.In the specific implementation, because described detection system 10 is installed on high-tension line tower place (near the support that sets up the body of the tower of high-tension line tower, tower arm or the high-tension line tower), therefore, its low frequency forceful electric power that may be subjected to high voltage power transmission equipment disturbs, described screening arrangement 30 can adopt similar devices such as shielding box, the described low frequency electrical interference of filtering reaches the anti-interference protection to described detection system 10, thereby reaches the monitoring of whole high voltage power transmission equipment and the anti-interference protection of guard system.
The ripple of radar wave and other frequency ranges except that radar wave), mode such as infrared waves, sound wave carries out the monitoring of the intrusion target of high voltage power transmission equipment the utility model embodiment adopts electromagnetic wave (to comprise:, cost is lower, and be not subject to Effect of Environmental, and can carry out multiple mounting means to supervising device according to actual needs, improved the accuracy of surveying; The utility model embodiment at first carries out analyzing and processing on the spot with the data that detection system detects, and filters out effective target signature signal, has reduced the processing pressure of background processing system, has improved treatment effeciency; The utility model embodiment with detection system on the spot the effective target characteristic signal that obtains of analyzing and processing be sent to the background processing system processing that compares, the staff who helps background processing system monitors processing in real time to various intrusion target, has improved practicality.
For clearer explanation the utility model, will describe in detail to the monitoring of described high voltage power transmission equipment and the detection system in the guard system below.
See also Fig. 3, be the structural representation of first embodiment of detection system of the present utility model; Described detection system 10 comprises:
Supervising device 101 is located at the high-tension line tower place, is used to survey the interior echo signal of guarded region of high voltage power transmission equipment;
In the specific implementation, described supervising device 101 can be in the following device any one or more: the electromagnetism supervising device, infrared supervising device and sound wave supervising device, wherein, described electromagnetism supervising device comprises: the supervising device of the ripple of radar monitoring device and other frequency ranges of emission except that radar wave.Described supervising device 101 mainly is to utilize various wave beams continual detection (directional detection or scanning probe in real time) in guarded region, when the target invasion is arranged in the guarded region, can receive the reflected wave of intrusion target, this reflected wave is the echo signal of the intrusion target that described supervising device 101 detects;
Preferably, described supervising device 101 is the radar monitoring device, and described radar monitoring device comprises at least one plane doppler radar sensor;
Described plane doppler radar sensor, be fixedly installed in described high-tension line tower place, particularly, described plane doppler radar sensor can be fixedly installed on the tower arm and/or body of the tower of high-tension line tower, or be fixedly installed near the support that sets up the high-tension line tower, the zone that the radar beam of its emission covers is the guarded region of high voltage power transmission equipment, described guarded region comprises: the part of described high-tension line tower, and/or the part of the high-voltage line on the described high-tension line tower, and/or the part of another high-tension line tower adjacent with described high-tension line tower.
Be that the radar monitoring device is an example with supervising device 101 below, specify the concrete mounting means of supervising device 101.
See also Fig. 4, be the first effect schematic diagram of first embodiment of radar monitoring Unit Installation of the present utility model; And, be the second effect schematic diagram of first embodiment of radar monitoring Unit Installation of the present utility model please in the lump referring to Fig. 5; Fig. 4 and Fig. 5 are respectively the view of the different angles of same mounting means.Wherein, 1 is high-voltage line, and 2 is a radar beam that the plane doppler radar sensor is launched, and 3 is high-tension line tower.
As Fig. 4 or shown in Figure 5, described radar monitoring device comprises a plane doppler radar sensor, it is installed on the body of the tower of a high-tension line tower 3, the radar beam 2 of its emission covers the part of the high-voltage line on the described high-tension line tower 3, mainly be that the minimum point of covering high-voltage line and ground distance (specifically can be referring to the dotted line part of the high-voltage line among the figure, because in the practical application, this point is the minimum point of high-voltage line, also is the easiest place of being invaded); In addition, described radar beam 2 has also covered the body of the tower of another high-tension line tower adjacent with the high-tension line tower at doppler radar sensor place, described plane and the part of tower arm.
See also Fig. 6, be the effect schematic diagram of second embodiment of radar monitoring Unit Installation of the present utility model; As shown in Figure 6, described radar monitoring device comprises four plane doppler radar sensors, wherein two plane doppler radar sensors are installed in respectively on the two tower arms of high-tension line tower, two other plane doppler radar sensor is installed on the two tower arms of another high-tension line tower adjacent with described high-tension line tower equally, the common scope that covers of radar beam of four radar sensor emissions has been determined the guarded region of described radar monitoring device, its guarded region covers the part of the high-voltage line on the described high-tension line tower, mainly be that the minimum point of covering high-voltage line and ground distance is (because in the practical application, this point is the minimum point of high-voltage line, also is the easiest place of being invaded).
See also Fig. 7, be the first effect schematic diagram of the 3rd embodiment of radar monitoring Unit Installation of the present utility model; And, be the second effect schematic diagram of the 3rd embodiment of radar monitoring Unit Installation of the present utility model please in the lump referring to Fig. 8; Fig. 7 and Fig. 8 are respectively the view of the different angles of same mounting means.As Fig. 7 or shown in Figure 8, described radar monitoring device comprises two plane doppler radar sensors, one of them plane doppler radar sensor is installed on the body of the tower of a high-tension line tower, another one plane doppler radar sensor is installed on the body of the tower of another high-tension line tower adjacent with described high-tension line tower, the common scope that covers of radar beam of two radar sensor emissions has been determined the guarded region of described radar monitoring device, its guarded region covers the part of the high-voltage line on the described high-tension line tower, mainly be that the minimum point of covering high-voltage line and ground distance is (because in the practical application, this point is the minimum point of high-voltage line, also is the easiest place of being invaded).
See also Fig. 9, be the effect schematic diagram of the 4th embodiment of radar monitoring Unit Installation of the present utility model; As shown in Figure 9, described radar monitoring device comprises four plane doppler radar sensors, wherein two plane doppler radar sensors are installed on the body of the tower of high-tension line tower, two other plane doppler radar sensor is installed on the body of the tower of another high-tension line tower adjacent with described high-tension line tower equally, the common scope that covers of radar beam of four radar sensor emissions has been determined the guarded region of described radar monitoring device, its guarded region covers the part of the high-voltage line on the described high-tension line tower, mainly be that the minimum point of covering high-voltage line and ground distance is (because in the practical application, this point is the minimum point of high-voltage line, also is the easiest place of being invaded).
See also Figure 10, be the effect schematic diagram of the 5th embodiment of radar monitoring Unit Installation of the present utility model; As shown in figure 10, described radar monitoring device comprises two plane doppler radar sensors, these two plane doppler radar sensors all are installed on the body of the tower of a high-tension line tower, the radar beam of its emission covers the part of the high-voltage line on the described high-tension line tower, mainly be that the minimum point of covering high-voltage line and ground distance (specifically can be referring to the dotted line part of the high-voltage line among the figure, because in the practical application, this point is the minimum point of high-voltage line, also is the easiest place of being invaded); In addition, described radar beam has also covered the part of two tower arms of another high-tension line tower adjacent with the high-tension line tower at doppler radar sensor place, described plane.
Figure 11 is the effect schematic diagram of the 6th embodiment of radar monitoring Unit Installation of the present utility model; As shown in figure 11, described radar monitoring device comprises two plane doppler radar sensors, these two plane doppler radar sensors are installed in respectively on the body of the tower of two adjacent high-tension line towers, and the radar beam of its emission covers the body of the tower of high-tension line tower at self place and the part of tower arm.
See also Figure 12, be the first effect schematic diagram of the 7th embodiment of radar monitoring Unit Installation of the present utility model; And, be the second effect schematic diagram of the 7th embodiment of radar monitoring Unit Installation of the present utility model please in the lump referring to Figure 13; Figure 12 and Figure 13 are respectively the view of the different angles of same mounting means.As Figure 12 or shown in Figure 13, set up a support respectively near two adjacent high-tension line towers, described radar monitoring device comprises two plane doppler radar sensors, be installed in respectively on two supports that set up, the radar beam of its emission covers the part of the high-voltage line between two adjacent high-tension line towers, mainly be that the minimum point of covering high-voltage line and ground distance (specifically can be referring to the dotted line part of the high-voltage line among the figure, because in the practical application, this point is the minimum point of high-voltage line, also is the easiest place of being invaded).
Be understandable that, the mounting means of the plane doppler radar sensor of above-mentioned Fig. 4-shown in Figure 13 and number is installed only for for example, in the specific implementation, installation site that described plane doppler radar sensor is concrete and concrete number of installing can determine according to actual needs, such as: the regional extent that can monitor is according to actual needs determined the installation site of radar sensor; Or the range region of the radar beam of launching according to radar sensor is determined the number of installing; Or install or the like, but other situation similar analysis at different intrusion target or different geographical position.In addition, only show described radar monitoring device among above-mentioned Fig. 4-Figure 13 and be installed on situation between adjacent two line towers, be understandable that, generally speaking, each high-tension line tower all has two high-tension line towers that are adjacent, therefore, for complete high voltage power transmission equipment, various installation situation need corresponding analyzing and processing, and its analyzing and processing mode is similar, does not give unnecessary details at this.
In the practical application,, different mounting meanss is arranged at different intrusion target or different geographical position, such as: if main monitoring objective is heavy mechanical equipments such as crane, excavator, then following installation situation can be arranged:
1, on the same level height tower arm of adjacent two high-tension line towers, two plane doppler radar sensors are installed respectively, and the radar beam of described plane doppler radar sensor emission covers the part of the high-voltage line on the described high-tension line tower, specifically can be referring to Fig. 6;
2, between adjacent two high-tension line towers, a plane doppler radar sensor respectively is installed on the body of the tower of each high-tension line tower or near the support that sets up each high-tension line tower, and the radar beam of described plane doppler radar sensor emission covers the part of the high-voltage line on the described high-tension line tower, specifically can be referring to Fig. 7, Fig. 8, Figure 12 or Figure 13;
3, between adjacent two high-tension line towers, two plane doppler radar sensors of parallel installation on the body of the tower of each high-tension line tower, and the radar beam of described plane doppler radar sensor emission covers the part of the high-voltage line on the described high-tension line tower; Specifically can be referring to Fig. 9;
4, between adjacent two high-tension line towers, one or parallel two plane doppler radar sensors of installation can be installed on the body of the tower of one of them line tower, and the radar beam of described plane doppler radar sensor emission covers the part of the high-voltage line on the described high-tension line tower, and the body of the tower of adjacent another high-tension line tower of the high-tension line tower at covering and doppler radar sensor place, described plane and the part of tower arm; Specifically can be referring to Fig. 4, Fig. 5 or Figure 10.
For another example:, then following installation situation can be arranged if main monitoring objective is foreign material such as kite, polybag, trees:
Between adjacent two high-tension line towers, two plane doppler radar sensors are installed on the body of the tower of one of them high-tension line tower abreast, and the wave beam of this plane doppler radar sensor emission covers the part of the high-voltage line on the described high-tension line tower, and the part of covering another high-tension line tower adjacent with described high-tension line tower, specifically can be referring to Figure 10.
And for example:, then following installation situation can be arranged if mainly monitor all types of target that may occur in the high-tension line tower scope:
1, between adjacent two high-tension line tower, two plane doppler radar sensors are installed on the body of the tower of one of them high-tension line tower abreast, and the wave beam of this plane doppler radar sensor emission covers the part of another high-tension line tower adjacent with described high-tension line tower, specifically can be referring to Figure 10;
2, a plane doppler radar sensor is installed on the body of the tower of each high-tension line tower, is made the wave beam of its emission cover the part of described high-tension line tower, specifically can be referring to Figure 11.
Be understandable that above-mentioned only is for example about radar monitoring Unit Installation situation, but other situation similar analysis are not given unnecessary details at this.
Described plane doppler radar sensor is connected with described MCU103, and it carries out directional detection or scanning probe in real time in described guarded region under the control of described MCU103, obtains object appearing signal in the described guarded region.
In the specific implementation, described plane doppler radar sensor adopts the radar flat plane antenna, adopts single channel CW (continuous wave) mode of operation, and its tranmitting frequency is in the 5-90GHz scope, and preferably, its tranmitting frequency adopts about 24GHz.When intrusion target enters the radar monitoring zone, after the radar beam that described plane doppler radar sensor is launched detects this target, can return a reflection signal, after this reflection signal is back to radar sensor, carry out mixing with the radar beam of described radar sensor self emission, produce an intermediate frequency difference frequency signal that contains target information, it is Doppler signal, this Doppler signal has comprised the echo signal near the guarded region of the high-voltage line that detects on described high-tension line tower and/or the high-tension line tower, and described radar monitoring device is sent to signal processing apparatus 102 with this echo signal (being Doppler signal);
Above-mentioned installation situation and the detection event that has embodied when supervising device 101 is the radar monitoring device, when supervising device 101 is other supervising devices, such as: during for infrared supervising device or sound wave supervising device, can carry out similar mounting means, when described supervising device 101 is other supervising devices, its detection event also can be carried out similar analysis, does not give unnecessary details at this.
In the specific implementation,, be the structural representation of the embodiment of signal processing apparatus 102 of the present utility model please in the lump referring to Figure 14; Described signal processing apparatus 102 comprises:
Filter 211 is connected with described supervising device 101, is used for interference signal and noise signal that echo signal that filtering obtains described supervising device 101 is disturbed;
Amplifier 212 is connected with described filter 211, is used for the echo signal that described filter 211 leaches is carried out processing and amplifying;
AD213 is connected with described amplifier 212, is used for the echo signal after the described processing and amplifying is carried out ultra high speed A and sampling;
In the specific implementation, echo signal (continuous wave signal) high-speed transitions after described AD213 amplifies described amplifier 212 is the echo signal of numeral, and the digital signal after will changing is carried out sampling processing, obtain corresponding sampled data, be understandable that sampled data has herein been carried the characteristic signal of intrusion target.
DSP214 is connected with described AD213, reads sampled data in real time from AD213, and described sampled data is carried out quick calculation process, obtains the target signature signal.
In the specific implementation, described DSP214 can adopt the algorithm of some quick computings, such as: fast fourier transformation algorithm etc., described sampled data is carried out quick calculation process, obtain the characteristic signal of intrusion target.
In the practical application, between described AD213 and the described DSP214, can also comprise a FPGA (Field Programmable Gate Array, field programmable gate array) device, it is connected with described DSP214 with described AD213, be used for the sampled data that temporary described AD213 obtains, and, filter out effective target signature signal according to self decision threshold.Particularly, described AD213 is delivered to described sampled data in the described FPGA device and keeps in, the at first temporary sampled data of being transmitted of described FPGA device, and, filter out the effective characteristic signal of intrusion target via self decision threshold; Described DSP 215 in real time, constantly from described FPGA device, read the sampled data after the AD213 conversion, draw the root-mean-square value of noise through calculation process, calculate corresponding judging threshold again, this judging threshold is write in the described FPGA device, so that described GPGA device carries out the screening of effective characteristic signal according to this decision threshold that writes.
Said process carries out analyzing and processing on the spot to the echo signal that supervising device 101 detects, can filter out effective signal in time, in real time, fast, the noise signal that filtering is invalid, interference signal and spurious signal have alleviated background process pressure, have improved treatment effeciency.
MCU103, be connected with described signal processing apparatus 102 with described supervising device 101, be used to control the work of described supervising device 101 and described signal processing apparatus 102, and dispatch and transmit described signal processing apparatus 102 and handle the described target signature signal that obtains.
In the specific implementation, described MCU103 can be a control chip, it is used to control described detection system 10 whole system operation, particularly, it is controlled described supervising device 101 and carries out real-time detection, and controls the echo signal that 102 pairs of described supervising devices 101 of described signal processing apparatus detect and carry out real-time analysis and processing.In addition, described MCU103 is also bearing the function of scheduling and Data transmission, be that described MCU103 is passed to background processing system 20 with the clarification of objective signal that described signal processing apparatus 102 processing obtain, be beneficial to 20 pairs of intrusion target of background processing system and monitor in real time and handle.
The ripple of radar wave and other frequency ranges except that radar wave), mode such as infrared waves, sound wave carries out the monitoring of the intrusion target of high voltage power transmission equipment the utility model embodiment adopts electromagnetic wave (to comprise:, cost is lower, and be not subject to Effect of Environmental, and can carry out multiple mounting means to supervising device according to actual needs, improved the accuracy of surveying; The utility model embodiment at first carries out analyzing and processing on the spot with the data that detection system detects, and filters out effective target signature signal, has reduced the processing pressure of background processing system, has improved treatment effeciency; The utility model embodiment with detection system on the spot the effective target characteristic signal that obtains of analyzing and processing be sent to the background processing system processing that compares, the staff who helps background processing system monitors processing in real time to various intrusion target, has improved practicality.
See also Figure 15, be the structural representation of second embodiment of detection system of the present utility model; Identical with a last embodiment, described detection system 10 comprises: supervising device 101, signal processing apparatus 102 and MCU103.In the present embodiment, described detection system 10 also comprises:
In the specific implementation, described memory 104 can be an independent memory, also can be built-in storage or the data storage cell of described MCU103.Be understandable that described memory 104 has been born the storage of all data that whole system produced, and does not give unnecessary details at this.
In the specific implementation, described communication interface 105 can adopt the RS232 interface chip, RS422 interface chip and RS485 interface chip etc. be interface chip similarly, utilize multiple wireless technology, adopt multiple radio transmitting device, such as: adopt radio transmitting devices such as above-mentioned GPRS or CDMA, under the control of described MCU103, real-time detection system 10 is handled the target signature signal that obtains on the spot transfer to background processing system 20, be beneficial to background processing system 20 and make real-time processing according to the situation that is reflected.Communication interface 105 has herein been realized combining closely of described high voltage power transmission monitoring of tools and guard system and existing multiple wireless technology.
In the specific implementation, described supply unit 106 is used to whole described detection system 10 that the continuous firing power supply is provided, and particularly, described supply unit 106 is a DC power supply, such as: it can adopt the power voltage supply of direct current 12V; Or adopt independently power supply such as dry cell, adopt the electric induction mode or directly shunting mode directly take from the electric power of high voltage power transmission equipment self.Be understandable that described supply unit 106 also possesses voltage stabilizing function, it provides work required stabilized voltage power supply for described whole detection system 10.
The ripple of radar wave and other frequency ranges except that radar wave), mode such as infrared waves, sound wave carries out the monitoring of the intrusion target of high voltage power transmission equipment the utility model embodiment adopts electromagnetic wave (to comprise:, cost is lower, and be not subject to Effect of Environmental, and can carry out multiple mounting means to supervising device according to actual needs, improved the accuracy of surveying; The utility model embodiment at first carries out analyzing and processing on the spot with the data that detection system detects, and filters out effective target signature signal, has reduced the processing pressure of background processing system, has improved treatment effeciency; The utility model embodiment with detection system on the spot the effective target characteristic signal that obtains of analyzing and processing be sent to the background processing system processing that compares, the staff who helps background processing system monitors processing in real time to various intrusion target, has improved practicality.
See also Figure 16, be the structural representation of the 3rd embodiment of detection system of the present utility model; Identical with a last embodiment, described detection system 10 comprises: supervising device 101, signal processing apparatus 102, MCU103, memory 104, communication interface 105 and supply unit 106.In the present embodiment, described detection system 10 also comprises:
Video-unit 107 is connected with described communication interface 105 with described MCU103, is used for taking in real time the picture of described guarded region, and under the control of described MCU103, the picture of taking is passed to described background processing system 20 by described communication interface 105.
In the specific implementation, described video-unit 107 can be cam device, it can be in real time, or by the predetermined shooting of carrying out the picture of guarded region blanking time, or after described alarm 108 sends warning, trigger described video-unit 107 and take, described video-unit 107 with the picture taken (such as: picture) be stored in the described memory 104, under the control of described MCU103, described picture is passed to described background processing system 20 by described communication interface 105.
Be understandable that described supply unit 106 also needs to provide working power for described video-unit 107 and described alarm 108, does not give unnecessary details at this.
The ripple of radar wave and other frequency ranges except that radar wave), mode such as infrared waves, sound wave carries out the monitoring of the intrusion target of high voltage power transmission equipment the utility model embodiment adopts electromagnetic wave (to comprise:, cost is lower, and be not subject to Effect of Environmental, and can carry out multiple mounting means to supervising device according to actual needs, improved the accuracy of surveying; The utility model embodiment at first carries out analyzing and processing on the spot with the data that detection system detects, and filters out effective target signature signal, has reduced the processing pressure of background processing system, has improved treatment effeciency; The utility model embodiment with detection system on the spot the effective target characteristic signal that obtains of analyzing and processing be sent to the background processing system processing that compares, the staff who helps background processing system monitors processing in real time to various intrusion target, has improved practicality.
In order to be illustrated more clearly in the utility model, will the monitoring and the background processing system in the guard system 20 of high voltage power transmission equipment of the present utility model be described in detail below.
See also Figure 17, be the structural representation of first embodiment of background processing system of the present utility model; Described background processing system 20 comprises:
In the specific implementation, characteristic signal during the driftlessness that can prestore in the described background data base 201 invasion, particularly, when not having intrusion target to enter guarded region, detection system 10 is surveyed and is obtained one and stablize constant or change the waveform that certain rule and feature are arranged, this is stablized constant or changes has the waveform of certain rule and feature can be stored in advance in the described background data base 201, as the basis that intrusion target is compared and judged.In addition, described background data base 201 also be used to the to prestore characteristic signal of plurality of target, here can be by a large amount of experiments, verify that different intrusion target enters the waveform of feature separately that comprises that is produced behind the guarded region, carry above-mentioned each waveform of the different characteristic signal of different intrusion target, can be stored in advance in the described background data base 201, as the basis that intrusion target is judged, compared and analyzes.
In the specific implementation, after described monitor supervision platform 202 receives described effective target signature signal, call the characteristic signal of each intrusion target of described background data base 201 storages, the effective target characteristic signal that receives is compared, particularly, because each intrusion target all has feature signal separately, when described monitor supervision platform 202 compares, need to consider in the practical application, the difference that bring the position that supervising device 101 in each detection system 10 is installed, should consider that also this effective target signature signal is the distortion of the characteristic signal that prestores, such as: the characteristic signal that amplitude prestores over time relatively reflects a little difference of existence, or reflect as the characteristic signal that phase change prestores relatively and to have a little difference etc., above-mentioned distortion is as in acceptable error range (this error range can be set according to actual conditions), can think that all effective target signature signal that receives and the characteristic signal that prestores are complementary, thereby the target of invasion is discerned and judged its type.Particularly, if monitor supervision platform 202 passes through compare of analysis, judge the target signature signal receive and the characteristic signal that prestores be complementary (same or similar), then judge adventurous target invasion in the guarded region, judge that then guarded region is unusual, further, described monitor supervision platform 202 is according to comparison result, determine the type of intrusion target, the monitor staff who is beneficial to background processing system 20 handles in real time at intrusion target; Further, described monitor supervision platform 202 is by carrying out calculation process to the effective target signature signal that receives, can distinguish the distance and the direction of displacement of intrusion target accurately, thereby more exactly intrusion target be described, be beneficial to the monitor staff intrusion target is handled in real time.If monitor supervision platform 202, is judged target signature signal that receives and the characteristic signal that prestores by compare of analysis and is not matched, judge non-hazardous target invasion in the guarded region, judge that then guarded region is normal.
The utility model embodiment background processing system can be determined the type of intrusion target to the processing that compares of clarification of objective signal, and the staff who helps background processing system monitors processing in real time to various intrusion target, has improved practicality.
See also Figure 18, be the structural representation of second embodiment of background processing system of the present utility model.Identical with a last embodiment, described background processing system 20 comprises: background data base 201 and monitor supervision platform 202.In the present embodiment, described background processing system 20 also comprises:
In the specific implementation, described alarm 203 is formed a more complete warning system with the alarm 108 of described detection system 10, when described monitor supervision platform 202 by after the target signature signal that receives is compared, determine the intrusion target that monitoring is dangerous, thereby it is unusual to judge that guarded region exists, described monitor supervision platform 202 can start described alarm 203 reports to the police, and makes respective handling with the monitor staff who reminds described background processing system 20; Perhaps, judging guarded region when described monitor supervision platform 202 exists unusually, and after determining the type of described intrusion target, described monitor supervision platform 202 can start described alarm 203 reports to the police, and makes respective handling with the monitor staff who reminds described background processing system 20 at different intrusion target.Simultaneously, described monitor supervision platform 202 also can pass through radio transmitting device, send alarm command to the detection system 10 that is positioned at described high-tension line tower, after the MCU103 of described detection system 10 receives this alarm command, the alarm 108 of controlling described detection system 10 sends warning, so that intrusion target is warned.
Be understandable that described background processing system 20 can also comprise display unit, can show the intrusion target that identifies, and is shown to the monitor staff in more intuitive mode, handle in real time to make things convenient for it.In addition, described background processing system 20 also should comprise supply unit, and this situation similar analysis is not given unnecessary details at this.
The utility model embodiment background processing system can be determined the type of intrusion target to the processing that compares of clarification of objective signal, and the staff who helps background processing system monitors processing in real time to various intrusion target, has improved practicality.
Description by the foregoing description, the ripple of radar wave and other frequency ranges except that radar wave), mode such as infrared waves, sound wave carries out the monitoring of the intrusion target of high voltage power transmission equipment the utility model embodiment adopts electromagnetic wave (to comprise:, cost is lower, and be not subject to Effect of Environmental, and can carry out multiple mounting means to supervising device according to actual needs, improved the accuracy of surveying; The utility model embodiment at first carries out analyzing and processing on the spot with the data that detection system detects, and filters out effective target signature signal, has reduced the processing pressure of background processing system, has improved treatment effeciency; The utility model embodiment with detection system on the spot the effective target characteristic signal that obtains of analyzing and processing be sent to the background processing system processing that compares, the staff who helps background processing system monitors processing in real time to various intrusion target, has improved practicality.
Above disclosed only is the utility model preferred embodiment, certainly can not limit the interest field of the utility model with this, one of ordinary skill in the art will appreciate that all or part of flow process that realizes the foregoing description, and according to the equivalent variations that the utility model claim is done, the scope that still belongs to utility model and contained.
Claims (10)
1. the monitoring of a high voltage power transmission equipment and guard system is characterized in that, comprising:
Detection system is located at the high-tension line tower place, and it surveys the interior echo signal of guarded region of high voltage power transmission equipment, and the described echo signal that detects is carried out analyzing and processing, obtains the target signature signal;
Background processing system is connected with described detection system, and it judges according to the target signature signal that described detection system obtains whether described guarded region is unusual;
Wherein, described detection system comprises: be located at the supervising device at high-tension line tower place, the signal processing apparatus that is connected with described monitoring, and the microcontroller MCU that is connected with described signal processing apparatus with described supervising device;
Described background processing system comprises: background data base, and the monitor supervision platform that is connected with described background data base with described detection system.
2. the system as claimed in claim 1 is characterized in that:
Described supervising device is located at the high-tension line tower place, and it surveys the interior echo signal of guarded region of high voltage power transmission equipment;
Described signal processing apparatus is connected with described supervising device, and the echo signal that described supervising device detects is carried out analyzing and processing, obtains the target signature signal;
Described MCU is connected with described signal processing apparatus with described supervising device, and it controls the work of described supervising device and described signal processing apparatus, and dispatches and transmit the described target signature signal that described signal processing means processes obtains.
3. system as claimed in claim 2 is characterized in that, described supervising device is with in the lower device any one or more: the electromagnetism supervising device, and infrared supervising device and sound wave supervising device, wherein, described electromagnetism supervising device comprises the radar monitoring device;
When described supervising device was the radar monitoring device, described radar monitoring device comprised at least one plane doppler radar sensor;
Described plane doppler radar sensor, be fixedly installed in described high-tension line tower place, the zone that the radar beam of its emission covers is the guarded region of high voltage power transmission equipment, described guarded region comprises: the part of described high-tension line tower, and/or the part of the high-voltage line on the described high-tension line tower, and/or the part of another high-tension line tower adjacent with described high-tension line tower;
Described plane doppler radar sensor is connected with described MCU, and it carries out directional detection or scanning probe in real time to described guarded region under the control of described MCU, obtains object appearing signal in the described guarded region.
4. system as claimed in claim 2 is characterized in that, described signal processing apparatus comprises:
Filter is connected interference signal that the echo signal that filtering is obtained described supervising device is disturbed and noise signal with described supervising device;
Amplifier is connected with described filter, and the echo signal that described filter leaches is carried out processing and amplifying;
Analog to digital converter AD is connected with described amplifier, and the echo signal after the described processing and amplifying is carried out ultra high speed A and sampling;
Digital signal processing device DSP is connected with described AD, reads sampled data in real time from AD, and described sampled data is carried out quick calculation process, obtains the target signature signal.
5. system as claimed in claim 2 is characterized in that, described detection system also comprises:
Memory, be connected with described supervising device, described signal processing apparatus and described MCU, store the described target signature signal that echo signal that described supervising device obtains and described signal processing means processes obtain, and the described echo signal that will store and described target signature signal call for described MCU;
Communication interface is connected with described MCU, and it is passed to described background processing system with the described target signature signal of storing in the described memory under the calling of described MCU;
Supply unit, be connected with described supervising device, described signal processing apparatus, described MCU, described memory and described communication interface, for described supervising device, described signal processing apparatus, described MCU, described memory and described communication interface provide the continuous firing power supply.
6. system as claimed in claim 5 is characterized in that, described detection system also comprises:
Video-unit is connected with described communication interface with described MCU, takes the picture of described guarded region in real time, and under the control of described MCU, the picture of taking is passed to described background processing system by described communication interface.
7. system as claimed in claim 6 is characterized in that, described detection system also comprises:
Alarm is connected with described MCU, and it sends warning under the control of described MCU, so that the target that detects is given a warning.
8. the system as claimed in claim 1 is characterized in that:
Described background data base is used for storing in advance polytype target and the pairing characteristic signal of each target;
Described monitor supervision platform, be connected with described background data base with described detection system, the described target signature signal that obtains according to described detection system, calling the characteristic signal that prestores in the described background data base compares, judge whether described guarded region is unusual, and when judging that described guarded region is unusual, determine the type of the target that detects in the described guarded region.
9. system as claimed in claim 8 is characterized in that, described background processing system also comprises:
Alarm is connected with described monitor supervision platform, and after described monitor supervision platform was judged that described guarded region is unusual or determined the type of described target, described alarm sent warning under the control of described monitor supervision platform.
10. as each described system of claim 1-9, it is characterized in that, also comprise:
Screening arrangement is connected with described detection system, but its filtering is to the low frequency electrical interference of described detection system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202892354U CN201860170U (en) | 2010-08-10 | 2010-08-10 | System for monitoring and protecting high-voltage transmission equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202892354U CN201860170U (en) | 2010-08-10 | 2010-08-10 | System for monitoring and protecting high-voltage transmission equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201860170U true CN201860170U (en) | 2011-06-08 |
Family
ID=44105969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202892354U Expired - Fee Related CN201860170U (en) | 2010-08-10 | 2010-08-10 | System for monitoring and protecting high-voltage transmission equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201860170U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105957287A (en) * | 2016-05-27 | 2016-09-21 | 四川桑莱特智能电气设备股份有限公司 | Anti-damage early warning system for overhead transmission line and method |
| CN111540153A (en) * | 2020-04-20 | 2020-08-14 | 南京环电科技有限公司 | Transmission line monitoring alarm device |
-
2010
- 2010-08-10 CN CN2010202892354U patent/CN201860170U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105957287A (en) * | 2016-05-27 | 2016-09-21 | 四川桑莱特智能电气设备股份有限公司 | Anti-damage early warning system for overhead transmission line and method |
| CN105957287B (en) * | 2016-05-27 | 2018-03-16 | 四川桑莱特智能电气设备股份有限公司 | A kind of tamper-proof early warning system and method for overhead transmission line |
| CN111540153A (en) * | 2020-04-20 | 2020-08-14 | 南京环电科技有限公司 | Transmission line monitoring alarm device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106291539B (en) | A kind of phased-array radar target identification system and method based on positioning filtering algorithm | |
| CN202167097U (en) | Signal transmitter, signal receiver and overhead line monitoring system | |
| CN104581087A (en) | Intelligent remote monitoring system of power transmission line on basis of internet of things | |
| CN102279995A (en) | Security pre-warning system based on Internet of things | |
| CN104574737A (en) | Comprehensive boundary security system | |
| CN103309323B (en) | Inspection device method for supervising and the system of tunnel environment | |
| CN201860170U (en) | System for monitoring and protecting high-voltage transmission equipment | |
| CN206132990U (en) | Safety monitoring system based on phased array radar | |
| CN106781145A (en) | A kind of portable transformer and distribution power station intelligent patrol detection instrument system and its monitoring method | |
| CN105319570A (en) | Device for tracking pipeline detector | |
| CN110827496A (en) | Intelligent transformer substation perimeter intrusion identification system and method based on networking monitoring | |
| CN110363995A (en) | There are comprehensive detection system and its detection methods for a kind of vehicle | |
| RU2703167C1 (en) | Self-contained post of technical supervision and method of its use | |
| CN206431771U (en) | A kind of portable transformer and distribution power station intelligent patrol detection instrument system | |
| CN106327756B (en) | perimeter security system | |
| CN206594305U (en) | A kind of wild animal monitoring device | |
| CN204013884U (en) | Radar video supervisory control system | |
| CN108801343A (en) | A kind of intelligent car systems applied to atmosphere environment supervision | |
| CN202470995U (en) | High-voltage wire construction safety intelligent monitoring device | |
| CN111693865A (en) | Motor cluster electromagnetic wave remote detection device and method based on SDR technology | |
| CN102201144A (en) | Balance type tension electrical fence alarm system | |
| CN216486697U (en) | Transformer substation perimeter video linkage monitoring device based on laser radar | |
| CN212693111U (en) | Wireless temperature measurement system | |
| CN115471965A (en) | Power transmission line area protection system and protection method | |
| CN108828581A (en) | A kind of electric power line pole tower laser and the outer broken monitoring method of microwave linkage and its system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110608 Termination date: 20140810 |
|
| EXPY | Termination of patent right or utility model |