CN107765621B - Automatic inspection method and automatic inspection system for substation equipment - Google Patents
Automatic inspection method and automatic inspection system for substation equipment Download PDFInfo
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Abstract
The invention relates to an automatic inspection method and an automatic inspection system for substation equipment, which are characterized in that firstly, observation point positions of a substation are determined according to inspection requirements, and an inspection route of the substation is formulated according to the observation point positions; then determining the installation position of each image detection device according to each observation point position; and finally, controlling the image detection equipment of each observation point according to the formulated substation patrol route to acquire images of the corresponding area of the substation. The running state information of each corresponding area of the transformer substation can be obtained through the plurality of image detection devices according to the corresponding patrol routes, and therefore reliable and comprehensive automatic patrol of the transformer substation devices is achieved. Moreover, the patrol route can be correspondingly adjusted according to the emphasis of patrol, so that the automatic patrol method can carry out targeted intelligent patrol and improve the flexibility of automatic patrol. In addition, the automatic patrol method is not influenced by time intervals and other conditions, and 24-hour continuous patrol can be realized.
Description
Technical Field
The invention relates to an automatic inspection method and an automatic inspection system for substation equipment.
Background
With the continuous construction and development of the intelligent power grid, the number of the transformer substations is gradually increased, and meanwhile, the operation and maintenance personnel of the transformer substations are continuously simplified under the requirement of a 'big operation' mode in 'three-in-five-out' of a national power grid company, so that the inspection workload of the current operation personnel is large; most of transformer substations need to be manually inspected, so that a large amount of manpower and material resources are consumed, and although most of the current transformer substations transmit the operation data and the state of primary equipment of the power system to a remote operation and maintenance station. However, the reliability of the primary equipment is not fully guaranteed, so that operators still need to spend great energy to frequently patrol the transformer substations one by one after the transformer substations are unattended, and the workload is very large.
Chinese patent application publication No. CN104298279A discloses an intelligent remote temperature control system for transformer substation based on infrared identification and passive sensing technology, wherein the thermal infrared imager has a plurality of preset positions, and the thermal infrared imager is arranged in the corresponding preset positions at different times to realize automatic inspection of the transformer substation. Although the system can realize automatic inspection of the transformer substation, detection is realized only through different preset positions, namely different angles of the thermal infrared imagers, the transformer substation is usually large in size, more devices are involved, and the transformer substation cannot be comprehensively inspected only through the angles of the rotary thermal infrared imagers.
Disclosure of Invention
The invention aims to provide an automatic inspection method for substation equipment, which is used for solving the problem that the conventional inspection mode cannot inspect a substation all the time. The invention also provides an automatic inspection system of the substation equipment.
In order to achieve the above purpose, the present invention provides an automatic inspection method for substation equipment, including the following steps:
(1) determining at least two observation points of the transformer substation according to the inspection requirement, and making an inspection route of the transformer substation according to each observation point;
(2) determining the installation position of the image detection equipment corresponding to each observation point according to each observation point;
(3) and controlling the image detection equipment of each observation point position to acquire images of the corresponding area of the transformer substation according to the formulated transformer substation patrol route, so as to realize automatic patrol of the transformer substation.
According to the automatic patrol method of the substation equipment, provided by the invention, each observation point of the substation is determined according to patrol requirements, the number of the observation points is set according to actual requirements, a substation patrol route is formulated according to each observation point, the validity and the normalization of patrol results can be ensured, then the installation position of the image detection equipment corresponding to each observation point is determined according to each observation point, namely, the corresponding image detection equipment is installed according to each observation point, finally, the image detection equipment of each observation point is controlled to carry out image acquisition on the corresponding area of the substation according to the formulated substation patrol route, and as each image detection equipment can detect the image information of a certain area, the operation state information of each corresponding area of the substation can be obtained through a plurality of image detection equipment according to the corresponding patrol route, so that the substation equipment can be reliably and reliably operated, The automatic inspection can be completely carried out, manual inspection can be partially or even completely replaced, the operation and maintenance/inspection mode of the current transformer substation is changed, the operation and maintenance/inspection efficiency is improved, and the operation and maintenance/inspection cost is reduced. Moreover, the patrol route can be correspondingly adjusted according to the emphasis of patrol, so that the automatic patrol method can carry out targeted intelligent patrol and improve the flexibility of automatic patrol. In addition, the automatic patrol method is not influenced by time intervals and other conditions, and 24-hour continuous patrol can be realized.
Furthermore, in order to improve the working efficiency of each image detection device and improve the capability of comprehensively inspecting the transformer substation, each image detection device is at least provided with two presetting bits corresponding to corresponding image acquisition regions, the transformer substation inspection route further comprises a switching strategy of each presetting bit of each image detection device, and each image detection device is controlled to be switched to the corresponding presetting bit according to the transformer substation inspection route so as to acquire images of the corresponding image acquisition regions.
Further, image information acquired by each image detection device is analyzed, relevant information in each image is acquired to generate a patrol result, and all patrol results are collected to generate a patrol report.
The invention also provides an automatic inspection system of the transformer substation equipment, which is obtained according to the automatic inspection method of the transformer substation equipment, and the automatic inspection system comprises a data processing module and image detection equipment arranged at the corresponding observation point, wherein each image detection equipment is connected with the data processing module.
Further, the image detection device includes a pan-tilt mechanism capable of rotating in a corresponding direction, and a camera and a light-emitting device provided on the pan-tilt mechanism.
Furthermore, the automatic inspection system further comprises infrared thermal imagers arranged at each observation point, each infrared thermal imager is used for detecting the operating temperature of the corresponding area of the primary equipment of the transformer substation, and each infrared thermal imager is connected with the data processing module.
Further, the automatic inspection system further comprises an environment data detection device for detecting environment information of the transformer substation, wherein the environment data detection device comprises a temperature detection module, a humidity detection module and an SF (sulfur hexafluoride) module6Concentration detection module, sound detection module, smog concentration detection module, wind speed detection module, water logging detection module and rainfall detection module, environmental data detection device output connection the data processing module.
Further, the automatic patrol system further comprises a safety monitoring part, wherein the safety monitoring part comprises a monitoring camera, an access control device, an infrared monitoring device and a fire-fighting alarm device.
Furthermore, the data processing module is arranged at a remote monitoring background, the automatic patrol system further comprises a CAN bus, each image detection device and the data processing module are connected with the CAN bus, and the data processing module and each image detection device are communicated through the CAN bus to realize remote automatic patrol.
Drawings
Fig. 1 is a schematic flow chart of an automatic inspection method for substation equipment;
fig. 2 is a schematic structural diagram of a specific embodiment of the automatic patrol system of the substation equipment.
Detailed Description
An automatic inspection method for substation equipment, as shown in fig. 1, includes the following steps:
(1) and determining at least two observation points of the transformer substation according to the inspection requirement, and making an inspection route of the transformer substation according to each observation point.
(2) And determining the installation position of the image detection equipment corresponding to each observation point according to each observation point.
(3) And controlling the image detection equipment of each observation point position to acquire images of the corresponding area of the transformer substation according to the formulated transformer substation patrol route, so as to realize automatic patrol of the transformer substation.
Based on the above basic technical means, the following detailed description is provided.
Firstly, the formulated specification of the substation patrol route can be formulated according to the specification of the national power grid substation equipment patrol specification, or according to the requirements of a specific operation and maintenance team, namely, what route the personnel should patrol the substation along, or by combining the two requirements. In this embodiment, according to the regulation of the national grid substation equipment inspection standard, and in combination with the requirements of a specific operation and maintenance team, the observation points of the inspection of the substation, namely, the inspection positions of the substation, are determined, in order to ensure the comprehensive inspection, the number of the observation points is at least two, and the specific number can be set according to the scale of the substation or the inspection requirement. And a tour route is formulated according to each observation point, and a specific implementation process is provided in the embodiment: firstly, counting each observation point location to formulate a point location information table, wherein the information table stores the related information of each observation point location, and a tour route is formulated according to the obtained point location information table. Therefore, the design of all observation points is strictly designed according to national network specifications, so that the inspection result is ensured to meet the relevant specification requirements, and the reliability of the result is ensured.
Then, the installation position of the image detection device is designed according to the point location information table, namely according to each observation point location, the image detection device is installed on each observation point location, namely, each determined observation point location is the installation position of the image detection device, each image detection device has a certain detection area, namely a patrol area, and the image information of the substation device in the corresponding area can be detected. Therefore, when the position of each observation point is set, the position of each observation point can be appropriately designed from the viewpoint of optimizing the number of image detection devices to determine the position of each image detection device.
The formulated substation patrol route includes a patrol scene of each image detection device, namely determination of a patrol area, and a working sequence of each image detection device. Assuming that there are M image detection devices, which are the first image detection device, the second image detection device, … …, and the mth image detection device, respectively, the formulated patrol route may be: the first image detection device firstly performs image acquisition, then the second image detection device performs image acquisition, then the third image detection device performs image acquisition, … …, and finally the Mth image detection device performs image acquisition; alternatively, it may be: the M image detection devices are divided into a plurality of groups, and image acquisition is carried out according to a certain sequence by taking the groups as units.
And finally, controlling image detection equipment arranged at each observation point according to the formulated substation patrol route, and acquiring images of corresponding areas of the substation to realize automatic patrol of the substation.
Therefore, the automatic inspection system can be obtained by the automatic inspection method, and the basic components of the system are a data processing module and image detection equipment arranged at each observation point, and each image detection equipment is connected with the data processing module.
In order to improve the work efficiency of each image detection device and improve the capability of comprehensively inspecting the transformer substation, each image detection device is at least provided with two presetting bits, each presetting bit corresponds to a corresponding image acquisition area, namely, each image detection device is provided with at least two image acquisition areas, the switching of different image acquisition areas is realized by changing the state of the image detection device, such as the rotation angle, and accordingly, the image information of different areas of the transformer substation can be acquired. Then, the formulated substation patrol route further includes a switching strategy of each preset position of each image detection device, and the switching strategy controls each image detection device to switch the preset position. And controlling each image detection device to switch to a corresponding preset position according to the patrol route so as to collect the image of the corresponding image collection area. Assuming that there are M image detection devices, each image detection device has N preset bits, the planned patrol route may be: all the image detection devices operate simultaneously, and are sequentially switched from the first preset position to the Nth preset position; or, the first image detection device firstly performs image acquisition, and sequentially switches from the first preset position to the Nth preset position, then the second image detection device performs image acquisition, sequentially switches from the first preset position to the Nth preset position, then the third image detection device performs image acquisition, sequentially switches from the first preset position to the Nth preset position, … …, and finally the Mth image detection device performs image acquisition, and sequentially switches from the first preset position to the Nth preset position.
In order to realize the switching of preset positions, the image detection device comprises a holder mechanism and an image acquisition part arranged on the holder mechanism, wherein the holder mechanism is a mechanism capable of rotating along a corresponding direction, such as: horizontal, vertical and diagonal. In this embodiment, the pan-tilt mechanism can rotate 180 degrees in the vertical direction and 360 degrees in the horizontal direction, 256 preset positions can be set by the pan-tilt mechanism, the pan-tilt mechanism can automatically call the preset positions to realize automatic control, and the precision of calling the preset positions should not be greater than 0.1; the rotation of the holder mechanism can also be controlled in a manner of manually controlling the holder mechanism. In order to satisfy image acquisition in a night environment, the image acquisition part includes two devices: the camera is a visible light camera, further is a high-definition pan-tilt camera, and the light-emitting device takes a white light lamp as an example. The high-definition cloud platform camera is used for monitoring primary equipment of the transformer substation, can realize automatic focusing, can perform zooming operation, and set parameters such as focal length and aperture, so that each scene can be clearly observed, and scene monitoring of all preset positions can cover scenes required by inspection standards. Moreover, zoom information and focusing information can be stored when the preset bit information is stored, an automatic wide dynamic effect can be realized to meet the requirement of normally detecting a target under the condition of backlight or backlight, and the functions of automatic picture capturing and real-time video recording can be realized. The white light lamp is used for illuminating when monitoring at night, can realize the automatic opening/closing function through the judgement to external light intensity, can realize can automatically open the white light lamp and automatically close after 2 minutes when cloud platform operation action takes place under the night state, can realize illuminating target object within 50 meters. The holder mechanism is used for controlling the rotation angles of the camera and the white light lamp.
In addition, when installing cameras, it is necessary to ensure that a single camera can meet the maximum scene monitoring requirement, i.e., the maximum image capture area, and to optimize and strive to arrange the minimum number of cameras. Moreover, when installing the camera, the design content of a specific scene should be considered, if the current scene needs to be viewed high, whether the installed camera can be turned to the corresponding position and is suitable for the related scene monitoring should be considered.
The data processing module is connected with each image detection device, has a data processing function and a control function, and is a control core of the automatic tour system. If the data processing module is arranged in the local transformer substation, local inspection is achieved, and if the data processing module is arranged in the remote monitoring background, remote inspection of the transformer substation is achieved. In this embodiment, the data processing module is a station-side integrated management host, which is also called an auxiliary system integrated monitoring host, and can implement remote inspection of the substation, and each image detection device communicates with the station-side integrated management host through the video processing unit. Furthermore, the automatic tour system also comprises a CAN bus, each image detection device and the station end comprehensive management host are connected with the CAN bus, and the station end comprehensive management host and each image detection device communicate through the CAN bus.
The station end comprehensive management host is loaded with a formulated substation patrol route, and controls each image detection device according to the patrol route, namely controls the working sequence of each image detection device and the switching of each preset position. And each image detection device acquires images of corresponding areas of the transformer substation and transmits the acquired image information to the station end comprehensive management host. Therefore, the established patrol route is formed by arranging and combining the sequence of each image detection device and each preset position according to the sequence required by national network standards, so that the system can simulate the patrol route of personnel on site during automatic patrol, and the patrol result meets the standard requirements.
In addition, in the patrol process of the system, each image detection device can directly capture the corresponding scene of patrol. The station-side integrated management host analyzes the image information acquired by each image detection device, acquires the related information of each image information, and simultaneously analyzes the actual significance of part of scenes, such as the reading of a meter in a patrol scene, the system automatically analyzes and reads the meter value, automatically analyzes the value according to the set standard content, and automatically marks when the device defect occurs to remind operation and maintenance personnel to pay attention to the content.
The station end comprehensive management host analyzes the received image information to generate a corresponding patrol result, summarizes all patrol results to generate a patrol report form, and the intelligent analysis result is also reflected in the report form. After the tour is finished, the system automatically outputs the tour record, and tour image analysis results and the like are output to a report according to the tour route sequence. In addition, the contents needing attention can be marked by different colors, so that operation and maintenance personnel can find problems in time and check the inspection problems in time. Meanwhile, the system can provide a real-time rechecking function for the patrol result, a user can call a patrol video in a specified time period and a specified area within a certain time as required to recheck, the patrol video is automatically and quickly positioned to a defect scene, a corresponding camera can be directly jumped to the corresponding scene by clicking related defects, and a patrol worker can check a real-time image to further check the patrol inspection result.
Furthermore, the system further comprises infrared thermal imagers, corresponding infrared thermal imagers are arranged at each observation point position, each infrared thermal imager is used for detecting the operation temperature of a corresponding area of the primary equipment of the transformer substation, and each infrared thermal imager is connected with the station end comprehensive management host. Then, for any observation point, the image detection device collects the image information of the area corresponding to the observation point, and the infrared thermal imager also collects the operating temperature of the primary equipment of the transformer substation in the area, and outputs the collected operating temperatures to the station end integrated management host. In order to control each infrared thermal imager, similar to the image detection device, a control strategy of the infrared thermal imager is also involved in the formulated patrol route, for example, the working sequence of each infrared thermal imager realizes the automatic patrol of the operating temperature of the transformer substation.
Moreover, as shown in fig. 2, the system further includes an environment data detection device for detecting environmental information of the substation, and the environment data detection device includes a temperature detection module, a humidity detection module, and an SF6The system comprises a concentration detection module, a sound detection module, a smoke concentration detection module, a wind speed detection module, a water immersion detection module and a rainfall detection module, wherein each detection module is output and connected with a station end comprehensive management host computer and used for monitoring various environmental data in the transformer substation, such as temperature, humidity and SF in the transformer substation6Concentration, sound, smoke concentration, wind speed, water immersion condition, and rain. Each detection module can be a conventional sensor and is communicated with the station end integrated management host through the environment data processing unit.
In addition, the system also comprises a safety monitoring part for carrying out safety monitoring on the transformer substation, and the system comprises a monitoring camera, entrance guard equipment, infrared monitoring equipment, fire-fighting alarm equipment and other equipment, wherein the infrared monitoring equipment comprises infrared correlation equipment and infrared dual-technology equipment, and the fire-fighting alarm equipment comprises an electronic fence, an alarm and the like. The system also comprises a power controller which is used for controlling the air conditioner fan water pump and the like.
The system has various inspection modes, can be used for periodic inspection, periodic inspection and the like, and can store the inspection content through the network storage unit, so that a user can timely call inspection results when needed. The operation and maintenance personnel can call any polling result record through the system, and the tedious operations of manually polling the station and maintaining the polling record are avoided. After the patrol time and patrol frequency are set by operation and maintenance personnel according to the patrol requirement of the national power grid, the patrol report can be regularly exported and printed, and the equipment patrol of the transformer substation can be completed without arriving in the transformer substation. In the system inspection, whether the corresponding equipment has operation defects or not is comprehensively judged by analyzing the images acquired by inspection and combining environmental information and the like in the inspection process, so that the workload of operation and maintenance personnel is greatly reduced.
The automatic inspection method provided by the invention can realize intelligent inspection, remotely read the running state of primary equipment in the transformer substation, read the on-off state of the disconnecting link, the display states of various instruments on the switch cabinet, the reading of the instruments, the reading of oil temperature and oil level and the like in real time, and the operation and maintenance personnel can judge the running condition of the primary equipment through real-time data, thereby shortening the accident handling response time under the emergency condition of the transformer substation. Moreover, the reading of the instrument and the change trend of the temperature measurement value can be predicted, such as the reading of various instruments and the temperature measurement value of various primary equipment, and the trend of future change is obtained by analyzing historical data, so that the function of early warning is realized, and the economic loss and other losses caused by emergency accidents are reduced.
The specific embodiments are given above, but the present invention is not limited to the described embodiments. The basic idea of the present invention lies in the above automatic tour method, wherein although several specific embodiments of the tour route are given, these embodiments are only for convenience of describing the automatic tour method, and the present invention is not limited to the specific embodiments of the tour route, and can be made according to actual needs.
Claims (7)
1. An automatic inspection method for substation equipment is characterized by comprising the following steps:
(1) determining at least two observation points of the transformer substation according to the inspection requirement, and making an inspection route of the transformer substation according to each observation point;
(2) determining the installation position of the image detection equipment corresponding to each observation point according to each observation point;
(3) the formulated substation patrol route comprises patrol scenes of all the image detection devices and a working sequence of all the image detection devices, and the image detection devices of all the observation points are controlled to carry out image acquisition on corresponding areas of the substation according to the formulated substation patrol route, so that automatic patrol of the substation is realized;
analyzing the image information acquired by each image detection device, acquiring related information in each image to generate patrol results, and summarizing all patrol results to generate a patrol report; the intelligent analysis result can be reflected in the patrol report form, and the contents needing attention are marked by different colors; meanwhile, the system provides a function of rechecking the inspection result fact, a user can call out a specified time period within a certain time and a patrol video in a formulated area for rechecking according to needs, the patrol video can be automatically and quickly positioned to a defect scene, a corresponding camera can be directly jumped to the corresponding scene by clicking related defects, and a patrol worker can check the real-time image to further check the patrol inspection result.
2. The automatic inspection method of the substation equipment according to claim 1, wherein each image detection device is provided with at least two preset positions, each preset position corresponds to a corresponding image acquisition area, the substation inspection route further comprises a switching strategy of each preset position of each image detection device, and each image detection device is controlled to be switched to the corresponding preset position according to the substation inspection route so as to acquire images of the corresponding image acquisition area.
3. An automatic inspection system of substation equipment obtained by the automatic inspection method of substation equipment according to claim 1, comprising a data processing module and image detection equipment arranged at a corresponding observation point, wherein each image detection equipment is connected with the data processing module;
the image detection equipment comprises a holder mechanism capable of rotating along a corresponding direction, and a camera and a light-emitting device which are arranged on the holder mechanism; the pan-tilt mechanism can automatically call the preset position to realize automatic control, and the precision of calling the preset position is not more than 0.1; the light-emitting device realizes automatic opening and closing functions through judgment of the intensity of external light, and can automatically open the white light lamp and automatically close the white light lamp after 2 minutes when the operation behavior of the holder occurs in the night state, so that the illumination of a target object within 50 meters is realized.
4. The automatic patrol system of the substation equipment according to claim 3, further comprising thermal infrared imagers for setting at each observation point, each thermal infrared imager being used for detecting an operating temperature of a corresponding area of the substation primary equipment, each thermal infrared imager being connected to the data processing module.
5. The automatic patrol system of the substation equipment according to claim 3, further comprising an environmental data detection device for detecting environmental information of the substation, wherein the environmental data detection device comprises a temperature detection module, a humidity detection module, and an SF6Concentration detection module, sound detection module, smog concentration detection module, wind speed detection module, water logging detection module and rainfall detection module, environmental data detection device output connection the data processing module.
6. The automatic patrol system of the substation equipment according to claim 3, further comprising a security monitoring portion, wherein the security monitoring portion comprises a monitoring camera, an access control device, an infrared monitoring device and a fire alarm device.
7. The automatic patrol system of the substation equipment according to claim 3, wherein the data processing module is arranged at a remote monitoring background, the automatic patrol system further comprises a CAN bus, each image detection device and the data processing module are connected to the CAN bus, and the data processing module and each image detection device communicate through the CAN bus to realize remote automatic patrol.
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| TWI817657B (en) * | 2022-08-16 | 2023-10-01 | 明志科技大學 | Opening system with photographic monitoring and identification processing |
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| CN109461225B (en) * | 2018-10-19 | 2021-10-01 | 智洋创新科技股份有限公司 | Active patrol method for transformer substation |
| CN109120071A (en) * | 2018-10-29 | 2019-01-01 | 国家电网有限公司 | It draws water electric power storage station equipment automatic tour inspection system and automatic detecting method |
| CN110190543A (en) * | 2019-04-19 | 2019-08-30 | 国网上海市电力公司 | A kind of safety assisting system and method for substation's operation |
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| CN101783530B (en) * | 2010-02-22 | 2012-10-10 | 江苏省电力公司无锡供电公司 | Intelligent monitoring and auxiliary control system for transformer substation based on Internet of things |
| CN102355058A (en) * | 2011-09-28 | 2012-02-15 | 华北电网有限公司张家口供电公司 | Remote patrol system for unattended substation |
| CN103699075B (en) * | 2013-12-11 | 2016-09-07 | 国家电网公司 | Substation inspection intelligent scheduling based on video monitoring and control system |
| CN106451790B (en) * | 2016-11-21 | 2018-09-21 | 北京殷图网联科技股份有限公司 | A kind of substation's long-distance intelligent cruising inspection system and its implementation |
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