CN111856453A - Transformer substation perimeter airspace foreign matter intrusion monitoring system based on radar probe - Google Patents
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- CN111856453A CN111856453A CN202010536039.0A CN202010536039A CN111856453A CN 111856453 A CN111856453 A CN 111856453A CN 202010536039 A CN202010536039 A CN 202010536039A CN 111856453 A CN111856453 A CN 111856453A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
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- G01S13/886—Radar or analogous systems specially adapted for specific applications for alarm systems
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Abstract
The invention discloses a transformer substation perimeter airspace foreign matter intrusion monitoring system based on a radar probe, which comprises: the radar monitoring module is used for monitoring the intrusion of the peripheral airspace floating objects of the transformer substation and sending the monitored data to the data transmission module; the data transmission module is used for receiving the monitoring data sent by the radar monitoring module and sending the monitoring data to the data monitoring module; the data monitoring module is used for receiving monitoring data of the radar monitoring module sent by the data transmission module, displaying position information of the invading floater based on the monitoring data, comparing the position information with a preset detection range to judge whether to generate an alarm or not, outputting alarm information when judging that the alarm needs to be generated, and generating an alarm record. The invention can monitor and early warn invasion of foreign matters in the peripheral airspace of the transformer substation in time, effectively reduce operation faults and accidents caused by floating invaders, maintain safe and stable operation of the transformer substation and improve the stability and the safety of the operation of a power grid.
Description
Technical Field
The invention relates to the field of transformer substation safety protection, in particular to a transformer substation perimeter airspace foreign matter intrusion monitoring system based on a radar probe.
Background
With the development of economy and the improvement of the technical level of electric power in China, the demand of industrial production and the life of residents on electric power is continuously increased, and the installed capacity of an electric power system is greatly increased. While the scale is continuously enlarged, the requirements of the power system on safety and reliability are continuously increased. The transformer substation is a line connection point in a power grid, is used for realizing voltage transformation, power regulation, electric energy allocation and the like, and is a crucial link in a power system. Whether the operation of the transformer substation is safe and stable is related to the safety and reliability of the whole power system.
The floating foreign matters around the transformer substation always influence the safe and stable operation of the power grid. The substations are mostly in open air environment, and various floating objects such as plastic films, plastic bags, balloons, kites, iron sheets and the like can invade the periphery of the substations due to various reasons such as strong wind or human beings and the like. If the airspace invader is wound on the high-voltage transmission line, the transmission line is easy to bear excessive weight load, and the line loss is accelerated; in case of severe weather such as thunderstorm, short circuit of a line is easily caused, single-interval equipment in a station is slightly likely to be tripped, the equipment is not planned to stop operation, the load loss of a power grid can be caused seriously, and the social and economic influences are huge; furthermore, if the foreign matter falls in the vicinity of the electrical equipment, the performance of the equipment may be affected, and even a failure of the equipment may be caused.
At present, the intrusion monitoring means of the peripheral floats of the transformer substation are very limited. The conventional method is manual inspection. The manual inspection is mainly determined by subjective sense of an operator, and has higher requirements on the working experience and the service level of the operator. However, even an experienced inspector and a solution of regular manual inspection have uncertainty on intrusion detection of the floating objects, efficiency is relatively low, omission is easily caused, and intrusion foreign objects cannot be timely processed and cleaned, so that potential safety hazards are buried for normal operation of the transformer substation. In recent years, with the rapid development of video image recognition technology and robot technology, methods such as automatic inspection by an intelligent robot and image tracking recognition are also gradually used for foreign object intrusion prevention and control research of transformer substations. The inspection robot depends on the quantity and the precision of the sensors in stable work, the problems of cruising track deviation, large error of a collection meter, low working efficiency, high development and design difficulty, high cost and the like in work under a complex environment are faced, the defects that inspection time is discontinuous, digital video detection is easily affected by ambient light and weather and the like cannot be overcome, and the inspection robot cannot be widely and efficiently applied at present. The monitoring of the transformer substation airspace invaders by using the image recognition technology requires a large number of cameras to be arranged at the transformer substation and around the transformer substation, and foreign matter invasion information is obtained through image processing. The system is relatively low in cost and easy to implement. However, image recognition techniques are limited by the quality of the picture taken, the size of the foreign object, and the distance between the foreign objects. The complex external factors such as weather, illumination intensity, day and night and the like can influence the accuracy of the identification result and the robustness of the detection algorithm, and the method is not suitable for large-range foreign matter intrusion detection of the transformer substation.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a transformer substation perimeter airspace foreign matter intrusion monitoring system based on a radar probe, which can timely monitor and early warn the intrusion of the transformer substation perimeter airspace foreign matter, effectively reduce operation faults and accidents caused by floating intruders, maintain the safe and stable operation of a transformer substation, and improve the stability and the safety of the operation of a power grid.
The invention adopts the following technical scheme:
a transformer substation perimeter airspace foreign matter intrusion monitoring system based on a radar probe comprises:
the radar monitoring module is used for monitoring the intrusion of the peripheral airspace floating objects of the transformer substation and sending the monitored data to the data transmission module;
the data transmission module is used for receiving the monitoring data sent by the radar monitoring module and sending the monitoring data to the data monitoring module;
the data monitoring module is used for receiving the monitoring data of the radar monitoring module sent by the data transmission module, displaying the position information of the invading floater based on the monitoring data, comparing the position information with a preset detection range to judge whether an alarm is generated or not, and outputting alarm information and generating an alarm record when judging that the alarm needs to be generated;
And the data storage module is used for storing the alarm records generated by the data monitoring module.
Preferably, the radar monitoring module comprises a radar probe; the radar probe comprises a long-distance detection mode and a short-distance detection mode; in a long-distance detection mode, the radar has a smaller pitch angle and a larger detection distance; in the short-distance detection mode, the radar has a larger pitch angle and a smaller detection distance; the width of a radar transmitting wave beam in the two modes has a certain azimuth angle; the two modes work simultaneously; the radar probe is arranged at one end of a transformer substation enclosure wall and has a certain inclination angle, and the inclination angle is equal to half of a depression elevation angle in a long-distance detection mode; the radar probe emits wave beams obliquely upwards, and the central axis of the wave beams is parallel to the wall surface of the enclosing wall and has an inclination angle with the ground; the sum of half of the depression elevation angle and the inclination angle under the short-distance detection mode of the radar probe is equal to 90 degrees, so that the radar probe forms a three-dimensional detection area above the enclosing wall; and when the detection distance of the radar probes is smaller than the enclosing wall, performing combined monitoring by adopting two or more radar probes.
Preferably, the data transmission module comprises a switch.
Preferably, the data monitoring module specifically includes:
the radar connection unit is used for realizing connection with one or more radar probes through a monitoring interface and displaying the connection state of the radar probes on the monitoring interface; after the radar connection is opened, the radar connection state is displayed in real time through a state lamp;
the coordinate conversion unit is used for converting the received position information of the invader obtained by scanning the radar probe in the peripheral airspace of the transformer substation into coordinate information;
the radar scanning map unit generates a transformer substation perimeter airspace object coordinate point diagram based on the coordinate information so as to display the condition of the boundary airspace around the transformer substation in real time;
the alarm range setting unit is used for setting an alarm coordinate range for judging the intrusion of foreign matters in the airspace; the alarm range setting unit is provided with a default alarm range, and can adjust the warning range of alarm judgment by setting the alarm range;
the alarm identification unit is used for comparing the coordinate information with the alarm coordinate range to judge whether to alarm or not, and if the coordinate information is located in the alarm coordinate range, sending alarm information to the alarm unit and generating an alarm record;
The alarm unit receives the alarm information of the alarm identification module and generates sound/light alarm;
and the historical alarm information unit is used for displaying the preset number of historical alarm records.
Preferably, the position information of the intruding object obtained by the radar probe scanning in the transformer substation perimeter airspace includes:
the angle and the distance between the radar probe and the invader;
the coordinate conversion unit converts the angle and the distance of the invader into XYZ-axis coordinate information.
Preferably, the radar scan chart unit generates a scan chart in real time according to monitoring angles based on the XYZ axis coordinate information, and updates the monitoring information of each monitoring angle in real time according to the XYZ axis coordinate information.
Preferably, the alarm record comprises: and the coordinate information, the monitoring angle and the invasion time of the invader.
Preferably, the alarm unit comprises an alarm state lamp; and after receiving the alarm information of the alarm identification module, the alarm state lamp generates sound and/or color change to alarm.
Preferably, the history alarm information unit is used for displaying a latest piece of alarm information.
Preferably, the data storage module receives all the alarm records generated by the alarm identification unit and stores the alarm records in a database and/or a text file in real time.
Compared with the prior art, the invention has the following beneficial effects:
1. the passive processing mode of the traditional floating foreign matter invasion is broken through, based on the radar probe, the floating foreign matter invasion transformer substation airspace can be warned in advance before the floating foreign matter is hung on a power line and facility equipment, and related workers are notified to process in time, so that the active monitoring of the floating invader in the transformer substation airspace is realized;
2. the invention changes the transmitting direction of the radar probe wave beam, controls the transmitting angle of the radar probe, can complete the monitoring of the vertical three-dimensional airspace perpendicular to the ground, can realize all-weather all-day-long monitoring of the periphery of the transformer substation, liberates the routing inspection personnel, improves the detection efficiency of foreign matter invasion of the transformer substation, reduces the probability of missed detection, and improves the stability of the operation of the transformer substation;
3. the invention can modify the detection range of the monitoring system according to the geographical characteristics and the detection requirements of the transformer substation, and automatically adapt to the complex perimeter environment of the transformer substation.
The above description is only an overview of the technical solutions of the present invention, and the embodiments of the present invention are described below in order to make the technical means of the present invention more clearly understood and to make the description of the technical means more comprehensible.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
FIG. 1 is an overall frame diagram of the present invention;
FIG. 2 is a schematic view of a scan of a radar probe of the present invention;
FIG. 3 is a schematic view of the radar probe installation and monitoring principles of the present invention;
FIG. 4 is a schematic diagram of a data monitoring module according to the present invention;
FIG. 5 is a diagram of the alarm logic of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
Referring to fig. 1 to 5, the present invention provides a transformer substation perimeter airspace foreign object intrusion monitoring system based on a radar probe, including:
the radar monitoring module 1 is used for monitoring the invasion of the peripheral airspace flotage of the transformer substation and sending the monitored data to the data transmission module 2;
the data transmission module 2 is used for receiving the monitoring data sent by the radar monitoring module 1 and sending the monitoring data to the data monitoring module 3;
the data monitoring module 3 is used for receiving the monitoring data of the radar monitoring module 1 sent by the data transmission module 2, displaying the position information of the invading floater based on the monitoring data, comparing the position information with preset position information to judge whether an alarm is generated or not, and outputting alarm information and generating an alarm record when judging that the alarm needs to be generated;
And the data storage module 4 is used for storing the alarm records generated by the data monitoring module 3.
In this embodiment, the radar monitoring module 1 includes a radar probe 11, and the radar probe 11 is installed on the surrounding wall 5 around the transformer substation. In this embodiment, the radar monitoring module 1 has an inclination angle θ1Mounting, the radar emission wave beam is parallel to the wall surface and forms an included angle theta with the ground1The pitch angle of the radar long-distance mode transmitting wave beam is 2 theta1Azimuth angle theta2Detection distance is l1The pitch angle of the transmitting wave beam of the radar short-range mode is theta3Azimuth angle theta4Detection distance is l2The long-distance mode and the short-distance mode work simultaneously, the scanning detection area is a three-dimensional area above the enclosing wall, when the scanning distance of the radar long-distance mode is smaller than the length of the enclosing wall, a plurality of radar probes 11 can be used for realizing combined monitoring on the enclosing wall on the same side, and once a floater passes through the peripheral airspace plane of the transformer substation, the radar probes 11 immediately monitor the horizontal angle alpha of the invasion of the floater1Perpendicular angle alpha2And the distance L from the floats and sends it to the data transmission module 2.
In this embodiment, the data transmission module 2 includes a switch. And the data transmission module 2 performs data transmission between the radar monitoring module 1 and the data monitoring module 3 based on the switch.
In this embodiment, the data monitoring module 3 specifically includes:
the radar connecting unit 31 is configured to implement connection with one or more radar probes 11 through a monitoring interface, and display a connection state of the radar probes 11 on the monitoring interface; after the radar connection is opened, the radar connection state is displayed in real time through a state lamp;
the coordinate conversion unit 32 is used for converting the received position information of the invader obtained by scanning the radar probe 11 in the peripheral airspace of the transformer substation into coordinate information;
the radar scanogram unit 33 is used for generating a transformer substation perimeter airspace object coordinate point diagram based on the coordinate information so as to display the condition of the boundary airspace around the transformer substation in real time;
an alarm range setting unit 34 for setting an alarm coordinate range for determining intrusion of foreign matter in the airspace; the alarm range setting unit 34 has a default alarm range, and can adjust the warning range of alarm discrimination by setting the alarm range;
the alarm identification unit 35 compares the coordinate information with the alarm coordinate range to judge whether to alarm, and if the coordinate information is in the alarm coordinate range, sends alarm information to the alarm unit 36 and generates an alarm record;
The alarm unit 36 receives the alarm information of the alarm identification module and generates sound/light alarm;
and a history alarm information unit 37, configured to display a preset number of history alarm records.
Specifically, the data monitoring module 3 opens the connection of the radar connection unit 31 and receives the monitoring data transmitted by the data transmission module 2, and then transmits the received monitoring data (α) through the coordinate conversion unit 321，α2L) into XYZ-axis coordinates (x, y, z). And the radar scanning point diagram unit starts to generate a radar scanning point diagram according to the coordinates converted by each monitoring angle, and updates the monitoring points generated by each angle in real time. The radar alarm recognition unit 35 compares the coordinates converted by each monitoring angle with the alarm settings (X, Y, Z) set by the alarm range setting unit 34, the alarm settings can be set appropriately according to the lengths and widths of the boundaries of different substations as long as the alarm settings are within the monitoring range of the selected radar probe 11, when an invader monitored by the radar probe 11 is within the alarm range (0-X, 0-Y, -Z,), the alarm recognition unit 35 generates an alarm record to record the invasion time, coordinate information and monitoring angle of the invader, meanwhile, the radar alarm unit 36 switches an alarm state lamp to send an alarm signal, and the history alarm information unit 37 records the latest alarm information. Further, the data storage module 4 receives all the alarm records generated by the alarm recognition unit 35 and stores the alarm records in a database and/or a text file in real time.
The above description is only an embodiment of the present invention, but the design concept of the present invention is not limited thereto, and any insubstantial modifications made by using the design concept should fall within the scope of infringing the present invention.
Claims (9)
1. The utility model provides a transformer substation perimeter airspace foreign matter intrusion monitoring system based on radar probe which characterized in that includes:
the radar monitoring module is used for monitoring the intrusion of the peripheral airspace floating objects of the transformer substation and sending the monitored data to the data transmission module;
the data transmission module is used for receiving the monitoring data sent by the radar monitoring module and sending the monitoring data to the data monitoring module;
the data monitoring module is used for receiving the monitoring data of the radar monitoring module sent by the data transmission module, displaying the position information of the invading floater based on the monitoring data, comparing the position information with a preset detection range to judge whether an alarm is generated or not, and outputting alarm information and generating an alarm record when judging that the alarm needs to be generated;
and the data storage module is used for storing the alarm records generated by the data monitoring module.
2. The radar probe-based substation perimeter airspace foreign object intrusion monitoring system of claim 1, wherein the radar monitoring module comprises a radar probe; the radar probe comprises a long-distance detection mode and a short-distance detection mode; the two modes work simultaneously; the radar probe is arranged at one end of a transformer substation enclosure wall and has a certain inclination angle, and the inclination angle is equal to half of a depression elevation angle in a long-distance detection mode; the radar probe emits wave beams obliquely upwards, and the central axis of the wave beams is parallel to the wall surface of the enclosing wall and has an inclination angle with the ground; the sum of half of the depression elevation angle and the inclination angle under the short-distance detection mode of the radar probe is equal to 90 degrees, so that the radar probe forms a three-dimensional detection area above the enclosing wall; and when the detection distance of the radar probes is smaller than the enclosing wall, performing combined monitoring by adopting two or more radar probes.
3. The radar probe-based substation perimeter airspace foreign object intrusion monitoring system of claim 1, wherein the data transmission module comprises a switch.
4. The radar probe-based transformer substation perimeter airspace foreign object intrusion monitoring system according to claim 1, wherein the data monitoring module specifically comprises:
the radar connection unit is used for realizing connection with one or more radar probes through a monitoring interface and displaying the connection state of the radar probes on the monitoring interface;
the coordinate conversion unit is used for converting the received position information of the invader obtained by scanning the radar probe in the peripheral airspace of the transformer substation into coordinate information;
the radar scanning map unit generates a transformer substation perimeter airspace object coordinate point diagram based on the coordinate information so as to display the condition of the boundary airspace around the transformer substation in real time;
the alarm range setting unit is used for setting an alarm coordinate range for judging the intrusion of foreign matters in the airspace;
the alarm identification unit is used for comparing the coordinate information with the alarm coordinate range to judge whether to alarm or not, and if the coordinate information is located in the alarm coordinate range, sending alarm information to the alarm unit and generating an alarm record;
The alarm unit receives the alarm information of the alarm identification module and generates sound/light alarm;
and the historical alarm information unit is used for displaying the preset number of historical alarm records.
5. The transformer substation perimeter airspace foreign matter intrusion monitoring system based on the radar probe according to claim 4, wherein the position information of the intruding object obtained by the radar probe through scanning in the transformer substation perimeter airspace comprises:
the horizontal angle, the vertical angle and the distance between the radar probe and the invader;
the coordinate conversion unit converts the horizontal angle, the vertical angle and the distance of the invader into XYZ-axis coordinate information.
6. The radar probe-based transformer substation perimeter airspace foreign object intrusion monitoring system according to claim 4, wherein the radar scan chart unit generates a scan chart in real time according to monitoring angles based on the XYZ-axis coordinate information, and updates the monitoring information of each monitoring angle in real time according to the XYZ-axis coordinate information.
7. The radar probe-based substation perimeter airspace foreign object intrusion monitoring system of claim 4, wherein the alarm record comprises: and the coordinate information, the monitoring angle and the invasion time of the invader.
8. The radar probe-based substation perimeter airspace foreign object intrusion monitoring system of claim 4, wherein the alarm unit comprises an alarm status lamp; and after receiving the alarm information of the alarm identification module, the alarm state lamp generates sound and/or color change to alarm.
9. The radar-based transformer substation perimeter airspace foreign object intrusion monitoring system of claim 4, wherein the historical alarm information unit is used for displaying a latest piece of alarm information.
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| CN115171360A (en) * | 2022-09-02 | 2022-10-11 | 国网山东省电力公司费县供电公司 | Combined type electric power plant area alarm system, alarm platform and use method |
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Application publication date: 20201030 |