CN112634562A - Intelligent electric power security system - Google Patents
Intelligent electric power security system Download PDFInfo
- Publication number
- CN112634562A CN112634562A CN202011479973.XA CN202011479973A CN112634562A CN 112634562 A CN112634562 A CN 112634562A CN 202011479973 A CN202011479973 A CN 202011479973A CN 112634562 A CN112634562 A CN 112634562A
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- 238000012544 monitoring process Methods 0.000 claims abstract description 76
- 241001465754 Metazoa Species 0.000 claims abstract description 21
- 238000004891 communication Methods 0.000 claims description 8
- 238000010586 diagram Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 238000007726 management method Methods 0.000 description 3
- 238000013499 data model Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000037237 body shape Effects 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Images
Classifications
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
- G08B13/189—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems
- G08B13/194—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems
- G08B13/196—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using image scanning and comparing systems using television cameras
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/02—Mechanical actuation
- G08B13/12—Mechanical actuation by the breaking or disturbance of stretched cords or wires
- G08B13/122—Mechanical actuation by the breaking or disturbance of stretched cords or wires for a perimeter fence
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
- G08B13/189—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems
- G08B13/19—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using passive radiation detection systems using infrared-radiation detection systems
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
- G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
- G08B25/10—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using wireless transmission systems
Abstract
The invention discloses an intelligent electric power security system which comprises an on-site monitoring system, a server center, a remote monitoring end and a warning lamp arranged on a transformer substation site, wherein the on-site monitoring system is used for monitoring whether external personnel and animals break into the transformer substation site and whether workers are in a safe working area, the on-site monitoring system transmits monitoring signals to the remote monitoring end through the server center, and the remote monitoring end judges the on-site conditions according to the monitoring signals and controls the warning lamp to give out a warning. The intelligent electric power security system can comprehensively control the situation that irrelevant personnel, small animals and foreign matters enter a substation switch yard in real time, timely inform on-duty personnel or monitoring personnel to drive away the personnel or the monitoring personnel, effectively protect equipment and a power grid to safely and stably operate, reduce the expenditure of manpower cost, and simultaneously remotely monitor the operation range of the switch yard operation personnel in real time, ensure that the operation personnel are in a safe operation area and ensure the personal safety of the operation personnel.
Description
Technical Field
The invention relates to a security system, in particular to an intelligent electric security system for identifying and alarming external personnel and intruding animals in a transformer substation.
Background
Radio Frequency Identification (RFID) is a Radio Frequency Identification.
At present, most transformer substations are unattended in real time, and operation and maintenance shifts or monitoring can only monitor the operation condition of equipment in the transformer substations in real time through means of videos, sounds and the like. When external personnel, animals and foreign matters enter a switching field of the transformer substation, the safety and the reliability of the human body and main equipment are seriously endangered, the field condition can be known only after an accident occurs, and the advance prejudgment on the switching field condition cannot be carried out. On the other hand, in a switch yard, the situation that an operator leaves an operation area without permission and enters a live area occurs, which brings great hidden danger to the personal safety and the equipment safety, but is limited by the quality of the field personnel and the device, and cannot be effectively prevented in time. Meanwhile, the abnormal operation of the equipment, such as temperature rise, cannot be perceived through video images. Therefore, the current transformer substation video monitoring equipment carries out image monitoring on important equipment, is only limited to sense and stop at the known state, and can not remotely carry out prejudgment and warning on conditions such as small animal invasion, equipment temperature abnormity, working personnel entering a charged area beyond the working range and the like.
Disclosure of Invention
In view of the above, the main objective of the present invention is to provide an intelligent power security system capable of identifying and alarming an intruder and monitoring the operation of the device.
In order to achieve the purpose, the invention provides an intelligent electric power security system which comprises an on-site monitoring system, a server center, a remote monitoring end and a warning lamp arranged on a transformer substation site, wherein the on-site monitoring system is used for monitoring whether external personnel and animals break into the transformer substation site and whether workers are in a safe working area, the on-site monitoring system transmits monitoring signals to the remote monitoring end through the server center, and the remote monitoring end judges the on-site condition according to the monitoring signals and controls the warning lamp to give out a warning.
The intelligent electric power security system comprises a camera which is arranged on the site of the transformer substation and connected with the remote monitoring end.
The on-site monitoring system is an infrared detector, the infrared detector is connected with an encoder capable of compressing and encoding infrared images, the encoder is in wireless communication with the server center, and the server center is provided with a DSP decoder for decoding and processing the infrared images.
The remote monitoring end is provided with a control unit, a memory, a database unit and a display screen, wherein the database unit and the display screen are respectively connected with the memory, and an animal form model and a human form model are prestored in the database unit.
The on-site monitoring system also comprises a sensor which senses the temperature of the local point of the power converter.
The remote monitoring terminal is provided with a short message module, the short message module is connected with the control unit, and the short message module is in wireless communication with the mobile phone client.
The on-site monitoring system is an access control system.
The on-site monitoring system is a rainfall detector.
The intelligent electric power security system can comprehensively control the situation that irrelevant personnel, small animals and foreign matters enter a substation switch yard in real time, timely inform on-duty personnel or monitoring personnel to drive away the personnel, effectively protect equipment and a power grid to operate safely and stably, and reduce the expenditure of labor cost. Meanwhile, the working range of the switching field operators is monitored remotely in real time, so that the operators can not leave respective working areas without permission, and the personal safety of the operators is ensured.
Drawings
FIG. 1 is a schematic block diagram of an intelligent power security system of the present invention;
FIG. 2 is a schematic block diagram of an embodiment of an intelligent power security system of the present invention;
FIG. 3 is a schematic block diagram of a second embodiment of the intelligent power security system of the present invention;
fig. 4 is a block diagram of three principles of an embodiment of the intelligent electric security system of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, the intelligent electric security system of the present invention includes an on-site monitoring system, a server center, a remote monitoring terminal, and a warning lamp installed on a transformer substation site, wherein the on-site monitoring system is used for monitoring whether external personnel and animals break into the transformer substation site and a safety work area of a worker, the on-site monitoring system transmits a monitoring signal to the remote monitoring terminal through the server center, and the remote monitoring terminal determines an on-site status according to the monitoring signal and controls the warning lamp to send a warning. The remote monitoring terminal is connected with the warning lamp through a wired or wireless network.
As shown in fig. 2, the on-site monitoring system of the present invention can be a pulse electronic fence, the substation site is provided with a camera connected to the remote monitoring end, the enclosure of the substation switch yard is provided with a pulse electronic fence to prohibit outsiders from crossing the enclosure and animals from intruding at any time so as to ensure the safe operation of equipment in the area, when a person illegally climbs over the enclosure or is damaged or an animal approaches, the pulse electronic fence host actively finishes transmission immediately after receiving a signal sent by the front end, the front-end signal is transmitted to the remote monitoring end through the server center, the remote monitoring end controls the camera on the site to be rapidly adjusted to a preset position, and the LED lamp arranged on the camera is linked to illuminate the invaded area, so that the clear warning picture can be transmitted to the remote monitoring end of the sentry box even at dark night, meanwhile, the remote monitoring end controls the on-site warning lamp to immediately emit warning light and sound to drive. The camera and the remote monitoring terminal can be connected in a wired or wireless communication mode. In this case, the field detection system may also be an access control system that warns of foreign persons who are unauthorized to enter by the access control.
In the field operation of the transformer substation, operators in a switch yard sometimes leave a safe operation area without permission and enter a live area, and great hidden dangers are brought to personal safety and equipment safety. In the invention, a virtual electronic fence can be set in the camera background system as a safe working area, the boundary of the area is the virtual electronic fence, when a worker crosses the virtual electronic fence, the worker can be warned by a warning lamp in a voice mode, and the worker can be effectively prevented from entering the electrified area by mistake. In the invention, an electrified area can be defined around the equipment through the virtual electronic fence, workers work outside the electrified area, and when the virtual electronic fence is crossed and enters the electrified area, the voice warning is generated by the warning lamp, so that the bidirectional warning can be realized by crossing the virtual electronic fence.
As shown in fig. 3, the on-site monitoring system of the present invention is an infrared detector, the infrared detector is connected with an encoder, the encoder is in wireless communication with a server center, and the server center is provided with a DSP decoder. When people or animals move in a switch yard of the transformer substation, the difference between the heat radiation of an invader and the heat radiation of a monitoring area is formed into an infrared image through an infrared detector, the infrared image is compressed and encoded through an encoder, and is transmitted to a server center through a wireless communication network, the infrared image decoding processing is completed through a DSP decoder by adopting a DSP technology, and the infrared image is restored and presented at a remote monitoring end in real time. The remote monitoring end of the invention is provided with a control unit, a memory, a database unit connected with the memory and a display screen connected with the memory, the decoded infrared image is stored in the memory, and comparing and analyzing the infrared image with the data model pixel prestored in the database unit, intelligently identifying the shot infrared image as a small animal or a human body, wherein the data model prestored in the database unit is various animal shape models and human body shape models, when the infrared image is identified as a person, the information is filtered without alarming, when the infrared image is identified as an animal, the control unit of the remote monitoring end controls the alarm lamp on site to make the alarm lamp emit alarm light and sound within 800ms for driving, such as high-frequency electric wave for driving animals, therefore, the power grid outage and equipment damage events caused by the fact that small animals break into the live equipment (the main transformer and the switch cabinet) are avoided. The alarm prompt window can be displayed through the display screen, and the infrared image and the description of the distinguished people or animals are displayed.
In the actual operation of the substation equipment, if the equipment generates heat or sparks due to failure or a heat point source appears nearby, the power grid is cut off and the equipment is damaged, so that the equipment safety is seriously influenced. As shown in fig. 4, the on-site monitoring system of the present invention may further include a sensor, the infrared detector photographs the power station environment, the sensor senses the temperature of the local point of the power converter, the infrared image and the sensor data are compressed and encoded by the encoder, and transmitted to the server center through the wireless communication network, the DSP technology is adopted to complete the decoding process of the infrared image by the DSP decoder, and the remote monitoring end restores and presents the infrared image in real time, and performs the picture analysis and comparison of microclimate around the power converter, including: temperature, humidity, smog, other hot point sources such as intelligent recognition equipment generate heat or spark, and the temperature difference sensitivity is within about 0.3 degree, surpasss the temperature value and carries out the early warning and notifies the watch man to monitor the maintenance, accomplishes early warning in advance and handles. The field detection system of the invention can also comprise a rainfall detector which monitors the rainfall in the switch yard so as to make early warning judgment.
In the invention, a short message module (as shown in figure 4) is also arranged at the remote monitoring end and is connected with the control unit, an alarm short message is sent to the mobile phone client of a designated person through the short message module, and the person on duty immediately responds after receiving an alarm and arranges the person to go to the site for processing. The remote monitoring end is provided with the memory and can store the picture and the alarm information, so that the alarm record can be inquired, the scene picture can be reviewed, and a scientific basis is provided for the later processing of the intrusion event.
In addition, the intelligent electric power security system can also realize cross-region remote control and hierarchical management, so that a plurality of controlled sites and superior management departments form a closely-connected system, and unified command and unified management are facilitated.
The intelligent electric power security system can comprehensively control the situation that irrelevant personnel, small animals and foreign matters enter a substation switch yard in real time, timely inform on-duty personnel or monitoring personnel to drive away the personnel, effectively protect equipment and a power grid to operate safely and stably, and reduce the expenditure of labor cost. Meanwhile, the working range of the switching field operators is monitored remotely in real time, so that the operators can not leave respective working areas without permission, and the personal safety of the operators is ensured.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.
Claims (8)
1. The intelligent electric power security system is characterized by comprising an on-site monitoring system, a server center, a remote monitoring end and a warning lamp arranged on a transformer substation site, wherein the on-site monitoring system is used for monitoring whether external personnel and animals break into the transformer substation site or not and whether workers are in a safe working area or not, the on-site monitoring system transmits monitoring signals to the remote monitoring end through the server center, and the remote monitoring end judges the on-site conditions according to the monitoring signals and controls the warning lamp to give out a warning or not.
2. The intelligent power security system of claim 1, wherein the site monitoring system is a pulsed electronic fence, and the intelligent power security system comprises a camera located at a substation site and connected to the remote monitoring terminal.
3. The intelligent power security system of claim 1, wherein the on-site monitoring system is an infrared detector, the infrared detector is connected with an encoder capable of compressing and encoding infrared images, the encoder is in wireless communication with the server center, and the server center is provided with a DSP decoder for decoding the infrared images.
4. The intelligent electric security system as recited in claim 2 or 3, wherein the remote monitoring terminal is provided with a control unit, a memory, a database unit and a display screen, the database unit and the display screen are respectively connected with the memory, and the database unit is pre-stored with an animal form model and a human form model.
5. The intelligent power security system of claim 3, wherein the site monitoring system further comprises a sensor that senses a local point temperature of the power converter.
6. The intelligent power security system of claim 4, wherein the remote monitoring end is provided with a short message module, the short message module is connected with the control unit, and the short message module is in wireless communication with the mobile phone client.
7. The intelligent electric security system of claim 1, wherein the on-site monitoring system is an access control system.
8. The intelligent power security system of claim 1, wherein the on-site monitoring system is a rainfall detector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011479973.XA CN112634562A (en) | 2020-12-15 | 2020-12-15 | Intelligent electric power security system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011479973.XA CN112634562A (en) | 2020-12-15 | 2020-12-15 | Intelligent electric power security system |
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| Publication Number | Publication Date |
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| CN112634562A true CN112634562A (en) | 2021-04-09 |
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| CN202011479973.XA Pending CN112634562A (en) | 2020-12-15 | 2020-12-15 | Intelligent electric power security system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113507596A (en) * | 2021-07-13 | 2021-10-15 | 杭州中科金财科技有限公司 | Distributed intelligent video analysis linkage control system |
| CN113945749A (en) * | 2021-09-24 | 2022-01-18 | 深圳飞赛精密钣金技术有限公司 | Insulator leakage current online monitoring method, system and device and storage medium |
| CN114743327A (en) * | 2022-04-12 | 2022-07-12 | 三峡大学 | Photoelectric electronic fence warning system |
| CN117546691A (en) * | 2023-10-19 | 2024-02-13 | 廊坊市园林绿化事务中心 | Intelligent garden tree pruning system and method based on image recognition |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202331693U (en) * | 2011-10-25 | 2012-07-11 | 重庆市电力公司市区供电局 | Online monitoring and sound-light expelling platform of substation security system |
| CN204990575U (en) * | 2015-08-09 | 2016-01-20 | 国家电网公司 | A automatic monitoring alarm device for transformer substation's prevention toy |
| CN205910570U (en) * | 2016-08-25 | 2017-01-25 | 华润水泥技术研发有限公司 | Need not people intelligent monitoring system of transformer substation that always falls on duty |
| CN109040669A (en) * | 2018-06-28 | 2018-12-18 | 国网山东省电力公司菏泽供电公司 | Intelligent substation video fence method and system |
| CN109560610A (en) * | 2018-11-20 | 2019-04-02 | 海南电网有限责任公司 | A kind of transformer substation video and environmental monitoring system |
| CN209357197U (en) * | 2019-03-05 | 2019-09-06 | 南方电网科学研究院有限责任公司 | A kind of substation's warning device and system |
| CN110517429A (en) * | 2019-09-10 | 2019-11-29 | 浙江蓝迪电力科技有限公司 | A kind of Intelligent electronic fence system and processing method |
-
2020
- 2020-12-15 CN CN202011479973.XA patent/CN112634562A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202331693U (en) * | 2011-10-25 | 2012-07-11 | 重庆市电力公司市区供电局 | Online monitoring and sound-light expelling platform of substation security system |
| CN204990575U (en) * | 2015-08-09 | 2016-01-20 | 国家电网公司 | A automatic monitoring alarm device for transformer substation's prevention toy |
| CN205910570U (en) * | 2016-08-25 | 2017-01-25 | 华润水泥技术研发有限公司 | Need not people intelligent monitoring system of transformer substation that always falls on duty |
| CN109040669A (en) * | 2018-06-28 | 2018-12-18 | 国网山东省电力公司菏泽供电公司 | Intelligent substation video fence method and system |
| CN109560610A (en) * | 2018-11-20 | 2019-04-02 | 海南电网有限责任公司 | A kind of transformer substation video and environmental monitoring system |
| CN209357197U (en) * | 2019-03-05 | 2019-09-06 | 南方电网科学研究院有限责任公司 | A kind of substation's warning device and system |
| CN110517429A (en) * | 2019-09-10 | 2019-11-29 | 浙江蓝迪电力科技有限公司 | A kind of Intelligent electronic fence system and processing method |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113507596A (en) * | 2021-07-13 | 2021-10-15 | 杭州中科金财科技有限公司 | Distributed intelligent video analysis linkage control system |
| CN113945749A (en) * | 2021-09-24 | 2022-01-18 | 深圳飞赛精密钣金技术有限公司 | Insulator leakage current online monitoring method, system and device and storage medium |
| CN114743327A (en) * | 2022-04-12 | 2022-07-12 | 三峡大学 | Photoelectric electronic fence warning system |
| CN117546691A (en) * | 2023-10-19 | 2024-02-13 | 廊坊市园林绿化事务中心 | Intelligent garden tree pruning system and method based on image recognition |
| CN117546691B (en) * | 2023-10-19 | 2024-04-19 | 廊坊市园林绿化事务中心 | Intelligent garden tree pruning system and method based on image recognition |
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