CN106657874B - Tower whole-system monitoring method and system based on multiple cameras - Google Patents
Tower whole-system monitoring method and system based on multiple cameras Download PDFInfo
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- CN106657874B CN106657874B CN201610844134.0A CN201610844134A CN106657874B CN 106657874 B CN106657874 B CN 106657874B CN 201610844134 A CN201610844134 A CN 201610844134A CN 106657874 B CN106657874 B CN 106657874B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
- H04N7/181—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a plurality of remote sources
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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Abstract
The invention relates to a monitoring technology for a transmission tower, in particular to a high-voltage transmission tower, and discloses a tower whole-system monitoring method and system based on multiple cameras, which solve the problems of low monitoring efficiency and incompleteness in manual monitoring in the traditional technology and the problems of poor real-time performance, low accuracy and no pertinence of a monitoring result in single-viewpoint video monitoring. In the invention, the image information of each interest point of the tower is collected and processed, and then a state monitoring result is output; judging whether the state of the interest point is abnormal or not according to the state monitoring result, if not, uploading the state monitoring result to a monitoring center, and if so, uploading the state monitoring result and the acquired problem picture to the monitoring center; and the monitoring center receives the state monitoring result or the state monitoring result and the problem picture, performs data analysis, and predicts and decides the tower state.
Description
Technical Field
The invention relates to a monitoring technology for a transmission tower, in particular to a high-voltage transmission tower, and particularly relates to a tower whole-system monitoring method and system based on multiple cameras.
Background
With the rapid development of national power construction and the expansion of power consumption requirements, the scale of a power grid is continuously enlarged, and more power grid construction and equipment maintenance work are carried out under the condition of complex terrain. The tower used as the electric power transmission link has the characteristics of large dispersity, remote location, difficult inspection, difficult maintenance and the like. The condition of the transmission tower is directly related to the power supply safety of an electric power department, so that the remote monitoring of the transmission tower body and the surrounding environment becomes urgent work.
The tower monitoring system is a monitoring system for monitoring tower inclination of the overhead transmission line, foundation settlement, surrounding environment, insulators, vibration dampers, bolts and other tower equipment. At present, besides manual monitoring methods, a plurality of tower state monitoring methods based on videos also appear in tower monitoring. The manual monitoring method is influenced by weather, tower distance and the like, and has the defects of low monitoring efficiency and incomplete monitoring; the monitoring method based on the video adopts a single view point to image the tower, transmits the collected image back to the monitoring center through the communication link, and then obtains the relevant state of the tower by using the image processing method, and the monitoring result is influenced by the stability degree and the transmission distance of the communication signal and has poor real-time performance. And the single viewpoint is used for monitoring multiple devices of the tower without pertinence, the monitoring result is related to the background complexity, the state monitoring results of the devices are mutually interfered, and the state monitoring accuracy is low.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: a tower whole-system monitoring method and system based on multiple cameras solve the problems of low monitoring efficiency and incompleteness existing in manual monitoring in the prior art and the problems of poor real-time performance, low accuracy and no pertinence of monitoring results existing in single-viewpoint video monitoring.
The scheme adopted by the invention for solving the technical problems is as follows:
tower total system monitoring system based on polyphaser, it includes:
the system comprises a power supply system, a data acquisition unit, a data processing system, a communication network and a monitoring center;
the power supply system provides power support for the whole monitoring system;
the data acquisition unit comprises a plurality of image acquisition sensors distributed on the tower, each image acquisition sensor fixedly monitors an interest point on the tower and transmits acquired images to the data processing system;
the data processing system comprises visual processing chips VPUs which are connected with the image acquisition sensors in a one-to-one corresponding mode, and each VPU is used for processing the acquired image of the interest point and outputting a state monitoring result;
the communication network adopts a Beidou satellite communication mode to realize data transmission and communication among the towers, the base station and the monitoring center;
and the monitoring center is responsible for receiving the tower state monitoring result to perform data analysis, tower state prediction and decision.
As a further optimization, the image acquisition sensor comprises at least one camera, which is a monocular camera or a binocular camera. The number and the type of the cameras are selected according to the characteristics of the monitored interest points, and different selection modes are provided for different interest points, so that more flexible and targeted monitoring is realized.
As further optimization, the communication network comprises Beidou short message modules arranged on towers, substations and monitoring centers.
The invention realizes data transmission and communication by adopting a Beidou satellite communication mode, and has the advantage of no influence of monitoring terrain, transmission distance, network signals and the like compared with conventional communication modes such as optical fiber communication, wireless communication, ZigBee networking and the like.
As further optimization, the power supply system adopts a wind power generation or solar power generation mode to provide power support for the data acquisition unit, the data processing system and the communication module on the tower.
As a further optimization, the points of interest include: the tower comprises a tower body, a tower foundation, bolts, insulators and the periphery of the tower.
The method for representing the state monitoring result in the combined form can enable the monitoring center to rapidly and accurately know the specific state condition of the interest point, and besides the combined form, the state monitoring result in the method can be customized according to specific requirements, so that the method is more humanized.
In addition, another objective of the present invention is to provide a tower whole-system monitoring method based on multiple cameras, which is applied to the above monitoring system, and includes the following steps:
A. collecting and processing image information of each interest point of the tower and outputting a state monitoring result;
B. judging whether the state of the interest point is abnormal or not according to the state monitoring result, if not, uploading the state monitoring result to a monitoring center, and if so, uploading the state monitoring result and the acquired problem picture to the monitoring center;
C. and the monitoring center receives the state monitoring result or the state monitoring result and the problem picture, performs data analysis, and predicts and decides the tower state.
As a further optimization, the method also comprises the following steps before the step A:
and A0, dividing and numbering the interest points, and associating corresponding state codes to the possible states of the interest points.
As a further optimization, in step B, the method of uploading the state monitoring result to the monitoring center, or uploading the state monitoring result and the acquired problem picture to the monitoring center is:
the tower directly uploads the state monitoring result or the monitoring result and the collected problem picture to a monitoring center;
or the tower uploads the state monitoring result or the state monitoring result and the collected problem picture to a monitoring center through the transformer substation.
As a further optimization, the method for uploading the state monitoring result or the state monitoring result and the collected problem picture to the monitoring center by the tower through the transformer substation comprises the following steps:
the tower encrypts the ID number of the transformer substation and the communication content application signal and then transfers the encrypted ID number and communication content application signal to a ground central station through a satellite in a message form;
after receiving the message, the ground central station adds the message into an outbound broadcast message which is continuously broadcast after decryption and encryption, and broadcasts the message to a transformer substation through a satellite;
the transformer substation receives the outbound broadcast messages of the broadcast, identifies the address of the monitoring center after demodulation and decryption, and then transmits the communication content to the monitoring center.
As further optimization, the state monitoring result comprises an interest point number, a state identifier and a state code; the interest point numbers are used for distinguishing different interest points, the state marks are represented by Yes or No correspondingly to indicate that the state of the interest points is normal or abnormal, and the state codes are represented by decimal numbers, binary numbers or English letters to indicate the specific state classification of the interest points.
The invention has the beneficial effects that:
1. the tower whole-system monitoring is realized by adopting multiple nodes, and each node fixedly observes a certain interest point, so that the monitoring is more comprehensive;
2. aiming at different monitoring objects, each node in the whole system of the tower can monitor the state of the tower in a targeted manner by adopting a monocular or binocular camera, so that the monitoring accuracy can be further improved;
3. the Beidou satellite communication mode is adopted to realize data transmission and communication, and compared with the conventional optical fiber communication, wireless communication, ZigBee networking and other communication modes, the Beidou satellite communication system has the advantage of being free from influences of monitoring terrain, transmission distance, network signals and the like.
Drawings
FIG. 1 is a structural block diagram of a tower overall system monitoring system based on multiple cameras;
FIG. 2 is a schematic diagram of a tower total system monitoring based on multiple cameras;
fig. 3 is a schematic diagram of a tower-substation communication link.
Detailed Description
The invention aims to provide a tower whole-system monitoring method and system based on multiple cameras, and solves the problems of low monitoring efficiency and incompleteness in manual monitoring in the prior art and the problems of poor real-time performance, low accuracy and no pertinence of a monitoring result in single-viewpoint video monitoring.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1, the multi-camera-based tower whole system monitoring system of the invention comprises a power supply system, a data acquisition unit, a data processing system, a communication network and a monitoring center;
the power supply system provides power support for the whole monitoring system;
the data acquisition unit comprises a plurality of image acquisition sensors distributed on the tower, each image acquisition sensor fixedly monitors an interest point on the tower and transmits acquired images to the data processing system;
the data processing system comprises visual processing chips VPUs which are connected with the image acquisition sensors in a one-to-one corresponding mode, and each VPU is used for processing the acquired image of the interest point and outputting a state monitoring result;
the communication network adopts a Beidou satellite communication mode to realize data transmission and communication among the towers, the base station and the monitoring center;
and the monitoring center is responsible for receiving the tower state monitoring result to perform data analysis, tower state prediction and decision.
In the concrete implementation, the invention adopts a multi-node monitoring mode, nodes correspond to interest points, each node can fixedly monitor one interest point, each node comprises an image acquisition sensor unit and a professional vision processing chip VPU (video processing unit) correspondingly connected with the image acquisition sensor unit, wherein the image acquisition sensor unit can adopt one camera or a plurality of cameras to improve the image acquisition accuracy, and during the specific selection, the selection can be carried out according to the characteristics of the monitored interest points.
As shown in fig. 2, in this example, corresponding sensors are provided for insulators, towers, wires, and other accessories to perform image acquisition, and a corresponding VPU is also provided for each sensor to perform image processing, so as to output a monitoring result, which may be uploaded to a monitoring center through a communication module, and the monitoring center stores and analyzes data to make corresponding predictions and decisions.
Based on the system, the tower whole-system monitoring method based on the multiple cameras in the embodiment of the invention comprises the following implementation steps:
1) dividing and numbering interest points, and associating corresponding state codes with states which may appear in each interest point;
the selection and division of the interest points are used as an optimized selection mode according to actual requirements, and the body, the foundation, the bolts, the insulators and the periphery of the tower can be used as the interest points so as to monitor whether the tower inclines or not, whether the foundation collapses or not, whether the bolts loosen or fall off or not, whether the insulators are polluted or burst or lost or not, whether the burning phenomenon appears below a line or not and the like;
the states are possible states of the interest points, and for convenience of data transmission and identification, the invention codes the states of the interest points, such as: the insulator is set as an interest point 1 and numbered as 1, and the tower foundation is set as an interest point 2 and numbered as 2.
The possible states of the insulator are: 0. normal 1, filth (a, mild contamination, b, moderate contamination, c, severe contamination) 2, burst 3, absence, etc.
Possible state codes of the tower are: 0. normal 1, pole tower inclination 2, pole tower collapse 3 and the like.
2) Collecting and processing image information of each interest point of the tower and outputting a state monitoring result;
the state monitoring result comprises an interest point number, a state identifier and a state code; the state identification correspondingly represents the normal or abnormal state of the interest point by Yes or No, and the state code represents the specific state classification of the interest point by decimal numbers or binary numbers or English letters;
taking the decimal number as the status code as an example, if the status of the insulator is detected to be normal, "1 Yes 0" is output as the status monitoring result, where "1" is the interest point number of the insulator, "Yes" indicates that the interest point is in a normal status, and "0" indicates the status code. If the insulator is detected to be lightly polluted, 1No1a is output as a state monitoring result, and similarly, "1" is the interest point number of the insulator, "No" represents that the interest point is abnormal in state, and "1 a" represents the state code of the interest point, and corresponds to the lightly polluted.
3) Judging whether the state of the interest point is abnormal or not according to the state monitoring result, if not, uploading the state monitoring result to a monitoring center, and if so, uploading the state monitoring result and the acquired problem picture to the monitoring center;
in this step, the determination is performed according to the state monitoring result, specifically, the determination is performed according to the state identifier, if there is no abnormality, the state monitoring result is directly uploaded in order to save network resources, and if there is abnormality, in order to further analyze the abnormal state, in addition to uploading the state monitoring result, a problem image is also uploaded.
In view of the characteristics that the Beidou satellite system can perform navigation positioning and short message communication, the geographic position of a tower in a power transmission line is remote, the terrain is complex and the like, the communication network for tower whole-system monitoring based on the multiple cameras realizes the mutual communication among the tower, a transformer substation and a monitoring center through the Beidou satellite system. Fig. 3 shows an example of transmission of a communication link from a tower to a substation. The method comprises the following specific steps:
(1) firstly, Beidou short message modules capable of sending and receiving short messages are respectively installed on a tower and a transformer substation.
(2) The tower encrypts the ID number and the communication content application signal of the transformer substation and transfers the encrypted ID number and the encrypted communication content application signal to the ground central station through the satellite.
(3) After receiving the communication application signal, the ground central station decrypts and re-encrypts the communication application signal and then adds the decrypted communication application signal into the outbound broadcast
Here, the broadcast is to the substation via satellite.
(4) And the transformer substation receives the outbound signal, demodulates and decrypts the outbound message and completes one-time communication.
After that, the substation can send the decrypted data to the monitoring center in a data stream form through the internet (in a wired or wireless mode), and the invention also supports direct communication between the tower and the monitoring center.
4) And the monitoring center receives the state monitoring result or the state monitoring result and the problem picture, performs data analysis, and predicts and decides the tower state.
The monitoring center comprises mobile terminals such as a mobile phone, a portable computer and a patrol car, a fixed monitoring center and the like and is responsible for receiving the monitoring result of the tower state to perform data analysis, tower state prediction and decision making.
In the invention, the power required by the camera, the VPU and the communication module is provided by a power supply system, and the power supply mode of the power supply system can be wind power generation, solar power generation or other power generation modes.
Claims (10)
1. Tower total system monitoring system based on polyphaser, its characterized in that includes:
the system comprises a power supply system, a data acquisition unit, a data processing system, a communication network and a monitoring center;
the power supply system provides power support for the whole monitoring system;
the data acquisition unit comprises a plurality of image acquisition sensors distributed on the tower, each image acquisition sensor fixedly monitors an interest point on the tower and transmits acquired images to the data processing system; the interest points have numbers, and the possible states of the interest points are associated with corresponding state codes;
the data processing system comprises visual processing chips VPUs which are connected with the image acquisition sensors in a one-to-one corresponding mode, and each VPU is used for processing the acquired image of the interest point and outputting a state monitoring result;
the communication network adopts a Beidou satellite communication mode to realize data transmission and communication among the towers, the base station and the monitoring center;
the monitoring center is responsible for receiving the tower state monitoring result to perform data analysis, tower state prediction and decision; the state monitoring result comprises an interest point number, a state identifier and a state code; the interest point numbers are used for distinguishing different interest points, the state marks are represented by Yes or No correspondingly to indicate that the state of the interest points is normal or abnormal, and the state codes are represented by decimal numbers, binary numbers or English letters to indicate the specific state classification of the interest points.
2. The multi-camera based tower total system monitoring system of claim 1, wherein the image acquisition sensor comprises at least one camera, and the camera is a monocular camera or a binocular camera.
3. The multi-camera based tower whole system monitoring system of claim 1, wherein the communication network comprises Beidou short message modules arranged at towers, substations and monitoring centers.
4. The multi-camera based tower whole system monitoring system as claimed in claim 1, wherein the power supply system adopts a wind power generation or solar power generation mode to provide power support for the data acquisition unit, the data processing system and the communication module on the tower.
5. The multi-camera based tower system-wide monitoring system of claim 1, wherein the interest points comprise: the tower comprises a tower body, a tower foundation, bolts, insulators and the periphery of the tower.
6. The tower whole-system monitoring method based on multiple cameras is applied to the monitoring system as claimed in any one of claims 1 to 5, and is characterized by comprising the following steps of:
A. collecting and processing image information of each interest point of the tower and outputting a state monitoring result;
B. judging whether the state of the interest point is abnormal or not according to the state monitoring result, if not, uploading the state monitoring result to a monitoring center, and if so, uploading the state monitoring result and the acquired problem picture to the monitoring center;
C. and the monitoring center receives the state monitoring result or the state monitoring result and the problem picture, performs data analysis, and predicts and decides the tower state.
7. The multi-camera based tower whole system monitoring method according to claim 6, further comprising the step of, before step A:
and A0, dividing and numbering the interest points, and associating corresponding state codes to the possible states of the interest points.
8. The multi-camera based tower whole system monitoring method according to claim 6, wherein in the step B, the state monitoring result is uploaded to a monitoring center, or the state monitoring result and the collected problem picture are uploaded to the monitoring center by the method comprising:
the tower directly uploads the state monitoring result or the monitoring result and the collected problem picture to a monitoring center;
or the tower uploads the state monitoring result or the state monitoring result and the collected problem picture to a monitoring center through the transformer substation.
9. The multi-camera based tower whole system monitoring method of claim 8, wherein the method for uploading the state monitoring result or the state monitoring result and the collected problem picture to the monitoring center by the tower through the substation comprises the following steps:
the tower encrypts the ID number of the transformer substation and the communication content application signal and then transfers the encrypted ID number and communication content application signal to a ground central station through a satellite in a message form;
after receiving the message, the ground central station adds the message into an outbound broadcast message which is continuously broadcast after decryption and encryption, and broadcasts the message to a transformer substation through a satellite;
the transformer substation receives the outbound broadcast messages of the broadcast, identifies the address of the monitoring center after demodulation and decryption, and then transmits the communication content to the monitoring center.
10. The multi-camera based tower whole system monitoring method according to claim 6, wherein the state monitoring result comprises an interest point number, a state identification, a state code; the interest point numbers are used for distinguishing different interest points, the state marks are represented by Yes or No correspondingly to indicate that the state of the interest points is normal or abnormal, and the state codes are represented by decimal numbers, binary numbers or English letters to indicate the specific state classification of the interest points.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108155587A (en) * | 2017-12-29 | 2018-06-12 | 武汉神宇电气有限公司 | Same voltage class supervisory control of substation method and system based on cors base stations |
| CN111262341B (en) * | 2020-01-19 | 2020-12-11 | 广东卓维网络有限公司 | Tower monitoring system |
| CN112987056A (en) * | 2021-01-22 | 2021-06-18 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Stability monitoring method and system for electric tower and tower foundation |
| CN113340357B (en) * | 2021-07-05 | 2022-09-30 | 山东国稳电气有限公司 | GIS equipment state on-line monitoring system |
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| CN102055243A (en) * | 2010-12-15 | 2011-05-11 | 北京交通大学 | High-voltage transmission line/ tower long-distance video on-line monitoring system |
| CN102740112A (en) * | 2012-06-18 | 2012-10-17 | 苏州科达科技有限公司 | Method for controlling equipment polling based on video monitoring system |
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| JP2003289528A (en) * | 2002-03-28 | 2003-10-10 | Toshiba Corp | Remote monitoring system and monitoring control method for the same |
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| CN102055243A (en) * | 2010-12-15 | 2011-05-11 | 北京交通大学 | High-voltage transmission line/ tower long-distance video on-line monitoring system |
| CN102740112A (en) * | 2012-06-18 | 2012-10-17 | 苏州科达科技有限公司 | Method for controlling equipment polling based on video monitoring system |
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