WO2016058526A1 - 一种gis设备内部视频监测系统及方法 - Google Patents

一种gis设备内部视频监测系统及方法 Download PDF

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Publication number
WO2016058526A1
WO2016058526A1 PCT/CN2015/091906 CN2015091906W WO2016058526A1 WO 2016058526 A1 WO2016058526 A1 WO 2016058526A1 CN 2015091906 W CN2015091906 W CN 2015091906W WO 2016058526 A1 WO2016058526 A1 WO 2016058526A1
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Prior art keywords
video
gis
video monitoring
sensor
module
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PCT/CN2015/091906
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English (en)
French (fr)
Inventor
白世军
张永强
段继洲
王海强
叶瑞
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中国西电电气股份有限公司
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Application filed by 中国西电电气股份有限公司 filed Critical 中国西电电气股份有限公司
Priority to US15/329,058 priority Critical patent/US10666907B2/en
Priority to MYPI2017700326A priority patent/MY192103A/en
Priority to SG11201700020PA priority patent/SG11201700020PA/en
Priority to RU2017101375A priority patent/RU2653109C1/ru
Publication of WO2016058526A1 publication Critical patent/WO2016058526A1/zh

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/26—Casings; Parts thereof or accessories therefor
    • H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
    • H02B1/306—Accessories, e.g. windows
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/50—Constructional details
    • H04N23/51—Housings
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/57—Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
    • H04N25/70—SSIS architectures; Circuits associated therewith
    • H04N25/76—Addressed sensors, e.g. MOS or CMOS sensors
    • H04N25/77—Pixel circuitry, e.g. memories, A/D converters, pixel amplifiers, shared circuits or shared components
    • H04N25/772—Pixel circuitry, e.g. memories, A/D converters, pixel amplifiers, shared circuits or shared components comprising A/D, V/T, V/F, I/T or I/F converters
    • 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

Definitions

  • the present disclosure relates to the technical field of smart grid high-voltage electrical intelligent online monitoring equipment, and in particular relates to a GIS device internal video monitoring system.
  • GIS Gas-insulated metal-enclosed combined electrical equipment
  • GIS equipment The structure of GIS equipment is complicated. Due to unforeseen mechanical failures or electrical faults during long-term operation, it is often the case that the switching indication state of the switch contacts does not match the actual split state of the contacts, or the case where the split is not in place. Since the contact is enclosed inside the GIS, the actual position of the contact cannot be directly obtained, which poses a hidden danger for the safe operation of the GIS device.
  • Embodiments of the present invention provide a method and system for monitoring internal conductors of a GIS, which are implemented by the present invention.
  • the technical solution provided by the example can effectively solve the online monitoring problem of the separation of the GIS isolation switch contact, the ground switch contact and the fast ground switch contact.
  • the technical solution provided by the embodiment of the invention can solve the problem of sealing and illumination of the video sensor mounted on the GIS housing, and convert the video signal into a digital signal to realize remote monitoring of the video of the internal contact of the switch device housing,
  • the isolation switch, grounding switch and quick grounding contact position monitoring provide an effective means.
  • an embodiment of the present invention provides an internal video monitoring system for a gas insulated metal-enclosed combined electrical (GIS) device, including a GIS video sensor, an intelligent power module, a video server, and a video monitoring background system, wherein the GIS video sensor is installed in The GIS housing is used for real-time collection of the merging state of the internal conductor of the GIS; the GIS video sensor is connected to the video monitoring background system through a video server, and the video monitoring background system supplies power to the video sensor by controlling the intelligent power module.
  • GIS gas insulated metal-enclosed combined electrical
  • the video server communicates with the video monitoring background system through a TCP/IP protocol.
  • the video sensor is provided with a surge protector at both the power input end and the signal output end.
  • the video monitoring background system includes a main program module, a data management module, an information interaction module, and a signal decoding processing module; the main program module is respectively connected to the data management module, the information interaction module, and the signal decoding processing module.
  • the video sensor comprises an observation window shell fixed on the GIS housing, the interface between the observation window housing and the GIS housing is a light-transmissive glass, and the light source and the photosensitive element are mounted in the observation window housing, and the photosensitive
  • the outer circumference of the component is sleeved with an insulating sleeve.
  • the light source and the photosensitive element are respectively disposed in two parallel chambers of the observation window housing.
  • An O-shaped shield ring is mounted between the observation window housing and the GIS housing.
  • an embodiment of the present invention further provides a method for monitoring internal video of a GIS device, where the party The method is based on a GIS device internal video monitoring system, wherein the GIS device internal video monitoring system comprises a GIS video sensor, an intelligent power module, a video server, and a video monitoring background system, wherein the GIS video sensor is installed on the GIS housing for The GIS video sensor is connected to the video monitoring background system through a video server, and the video monitoring background system supplies power to the video sensor by controlling the intelligent power module.
  • the monitoring method includes:
  • the video sensor collects the separation state of the internal conductor of the GIS in real time
  • the video server After receiving the video signal, the video server converts the video signal into a digital signal
  • the video monitoring background system decodes and analyzes the digital signal
  • the video monitoring background system displays the obtained analysis results to the user in the form of a screen.
  • the intelligent power module operates only if and only if the video monitoring background system needs to receive a video signal.
  • the video monitoring background system decodes and analyzes the digital signal, including:
  • the video monitoring background system When the video monitoring background system receives the video signal, it identifies different video information streams according to the IP address and the channel number;
  • the smart power module is started;
  • Classify sensor data extract valid video images, and save video images at the same time
  • the embodiment of the present invention performs video acquisition on the contact positions of the isolating switch, the grounding switch, and the fast grounding switch, and converts the collected video information into a digital signal input video through a video server.
  • the monitoring background system is managed in a unified manner. After the operation of the GIS isolation switch, grounding switch or quick grounding switch is completed, the actual contact state of the device can be directly confirmed, and whether the device is in place or not, which provides a guarantee for the reliable operation of the GIS device.
  • Figure 1 shows a schematic diagram of a video monitoring system inside a GIS device
  • Figure 2 shows a working principle diagram of the video sensor
  • Figure 3 shows a schematic diagram of a video monitoring background system
  • Figure 4 shows a flow chart of the video monitoring background software system
  • Figure 5 shows a block diagram of a video sensor.
  • the embodiment of the invention provides a GIS device internal video monitoring system, including a video sensor (101), a video server (102), an intelligent power module (103), a video monitoring background system (104), and a human-computer interaction module (105).
  • the number of video sensors is one or more, and the video sensor is installed on the GIS housing for real-time acquisition of the separation state of the internal conductor of the GIS;
  • the split state of the body includes the split state of the isolating switch contact, the grounding switch contact, and the fast grounding switch contact.
  • the video sensor (101) is connected to the video server (102) by a cable, and the video monitoring background system (104) supplies power to the video sensor (101) by controlling the intelligent power module (103), and then obtains communication with the video server (102).
  • Video digital signal, signal encoding using H.264 encoding The video server (102) and the video monitoring backend system (104) are connected by a network cable.
  • the video sensor (101) is installed inside the GIS housing, collects the internal video signal of the GIS, and then sends the video analog signal to the video server (102) through the cable, and the video server (102) converts the analog video data into a digital signal through the TCP/
  • the IP Network Communication Protocol
  • the sensor power supply is controlled by the intelligent power module (103), and the video monitoring background system (104) sends an operation command according to the need to open the intelligent power module (103) to realize selective control of the power supply of the video sensor. Turn on the sensor power during video monitoring and turn off the sensor power when no monitoring is required. In this way, the life of the sensor can be greatly extended.
  • the human-computer interaction module (105) obtains the data of the video monitoring background system (104) and presents it to the user, and can display the video data in the form of a main connection, and the user can obtain the current time by clicking the corresponding identification point on the main wiring. Video image.
  • the video monitoring background system (104) is responsible for processing, analyzing, and managing video data.
  • the hardware is implemented by a computer, and is connected to the video server (102) through a network interface. If there are multiple video servers, the network switch can be used for networking. .
  • the video monitoring background system (104) can receive signals of a plurality of video servers (102), analyze and process the signals, and then display them on a human-computer interaction interface in the form of main wiring, and the monitoring data is saved in the video monitoring background system. (104) Established in the database.
  • the system has user management functions, video decoding functions, and video capture functions (video capture). In the process, click the screenshot function button, the current 1 frame data will be saved as a picture), and the video recording function (acquisition is collected in the form of video recording but not saved, only when the video button is clicked).
  • the video sensor includes a sensor housing (501), a viewing window housing (503), a connecting flange (508), a connector (507), a photosensitive element (including an optical lens) (5012), Light source (506), power module (502), surge protector (509), camera (5010).
  • the interface between the observation window shell (503) and the GIS housing is a light transmissive glass (5013); the sensor housing (501) and the observation window housing (503) are externally threaded (505) and internally threaded, the connector (507) is mounted on the connecting flange (508), and the connecting flange (508) and the sensor housing (501) are connected by screws, and the connector is connected to the video server through a cable using a 4-pin connector.
  • the optical viewing window is responsible for the video sensor sealing and light transmission functions.
  • An O-shaped shield ring is mounted between the observation window housing (503) and the GIS housing.
  • the light source and the photosensitive element (including the optical lens) (5012) are respectively installed in two parallel mounting holes in the observation window housing (503) to prevent glare interference, and the photosensitive element (including the optical lens) (5012) is insulated.
  • the barrel (5011) is isolated.
  • the light source may be mounted in a first mounting hole of the viewing window housing 3, and the photosensitive member (including an optical lens) (5012) is mounted in a second mounting hole parallel to the first mounting hole, and further, the photosensitive
  • the outer circumference of the component (including the optical lens) (5012) is further provided with an insulating sleeve (5011) to prevent the light source and the photosensitive element (including the optical lens) from directly contacting the sensor housing to prevent electrostatic interference.
  • the surge protector (509) is installed on the power input end and the signal output end to prevent external overvoltage interference from entering the internal circuit of the sensor.
  • the sealing window (504) is directly mounted on the contact surface of the observation window shell (503) and the GIS housing to prevent gas leakage in the GIS.
  • the power module is installed in the step, and is responsible for supplying power to the light source and the photosensitive element.
  • the power module uses 24V input, and the output is 3.3V and 5V. Among them, 3.3V supplies power to the photosensitive element, and 5V supplies power to the light source module.
  • the surge protector is installed between the external circuit and the sensor circuit.
  • FIG. 2 shows the working principle of the video sensor.
  • the light source (202) provides illumination to the interior of the GIS to ensure that the photosensitive element can clearly capture the image information of the contact; after the photosensitive element (205) collects the contact image information, the data is transmitted.
  • the microprocessor (206) is encoded and processed, it is sent out through the signal output module (207); the power module (203) supplies the required power to each module; the surge protector (204) and the power module (203) and The signal output module (207) is connected to prevent external surge signals from affecting the video sensor.
  • FIG. 3 is a schematic diagram of a background system of a GIS conductor video monitoring system
  • the video monitoring system background system includes a main program module (304), a user management module (303), an information interaction module (305), and a data management module (306). ), a signal decoding processing module (302), an information collecting module (301), a database (307), and the like.
  • the video signal is transmitted through the TCP/IP protocol, and the video signal is classified and decoded by the signal decoding processing module (302), and the decoded data is transmitted to the main program module (304); the main program module (304) is responsible for coordinating the entire system. Run, it accepts the user's login and operation, coordinates the display and storage of video information, and all monitoring information is stored in the database (307) for easy recall.
  • Figure 4 shows a main flow diagram of the backend system of the conductor video monitoring system, which illustrates in detail the entire process from user login to video presentation and video storage.
  • the program starts from (4001) and then enters the permission audit (4002). This step requires entering a username and password. The username and password are matched with the pre-stored username and password in the system. If the match is successful, the user will pass the audit (4004). If the match is not successful, you will be asked to re-enter the username and password; after reviewing (4004), start reading the configuration file. (4005), after reading the configuration file, start parsing the configuration file (4007).
  • the configuration file is a parameter description file of the entire video monitoring system.
  • the content of the configuration file includes the IP of the video server, the correspondence between the video server and the video sensor, and the configuration information of each monitoring point.
  • the video monitoring system can obtain the configuration parameters of the entire system, and generate a video sensor list and a conductor video monitoring system main wiring according to the configuration parameters. If the parsing error occurs, the parsing function returns 0, and the user is required to modify the configuration file (4006).
  • the correct parsing function If the correct parsing function is parsed, it will return 1 and generate a sensor list (4009); after the sensor list is generated, the system main wiring (4010) is generated and presented to the user; the user clicks the sensor node on the main wiring (4011)
  • the system will pass the video server IP and channel (4012) of the node and check the format of the IP parameter and channel number to determine whether the parameter is correct (4013). If the parameter is incorrect, the configuration file (4006) needs to be modified. If the parameters are correct, the network status is detected (4014). By detecting the connection status of the network hardware, you can use the ping command to perform network detection to determine whether the network is normal (4015). If the network is abnormal, modify the network parameters (4016), and then modify the network parameters (4016).
  • Reconnect to the network (4017); if the network is normal, connect to the video server (4018) and connect to the smart Power supply (4031).
  • the connection time is monitored to determine whether the connection times out (4032). If the connected intelligent power module times out, the connection is restarted and a system alarm is given. If the connection is successful, the connection is sent to the intelligent power module.
  • the power-on command turns on the sensor power supply (4033). If the smart power module is successfully turned on, it will return the operation success command and enter the wait-close command state (4035). If the operation success command is not returned, the smart power module is reconnected (4031).
  • connection time When connecting to the video server, monitor the connection time to determine whether the connection times out (4019), if the connection server times out, restart the connection; if the connection is successful, obtain the video stream (4020), according to the video server IP address and The channel number gets the video stream data.
  • the acquisition time may be monitored to determine whether the time for acquiring the video stream expires (4021).
  • the video compression (4024) module compresses the video, and detects the size of the compressed packet, and determines whether the compression is completed according to the data requirement (4025), and if the data requirement is met, the compression is completed, and Enter the pre-store buffer processing (4026), save the data in the buffer; then read the video data from the video buffer, and display the video (4027), and simultaneously monitor the display status (4028) to determine whether the display status is normal (4029) If the video display is not normal, the network status is detected (4014); if the display is normal, the wait for close command (4030) is entered; at the same time, the data storage module reads the data from the video
  • the entire conductor video monitoring system uses Ethernet for networking, and all video servers are connected through a network switch.
  • the conductor video monitoring background system is installed on the background monitoring host and connected to the switch to obtain video information of all monitoring points through the Ethernet.
  • the video signal is transmitted using H.264 encoding based on TCP/IP protocol, and different video signals are identified by IP address and channel number.
  • the smart power supply used in the conductor video monitoring system is an intelligent power module that can be controlled via the network, in the conductor video When the monitoring system opens the video window, the intelligent power module is opened by the network command, and the intelligent power module is turned off when the conductor video monitoring system closes the video window.
  • the system can not only improve the service life of the sensor, but also effectively prevent the switch device from malfunctioning on the conductor video.
  • the monitoring system has interference effects, and the intelligent power system uses the Modbus TCP communication protocol for communication.
  • the conductor video monitoring system background software also has a screenshot function and a video recording function.
  • the video data and image data are stored in a binary file in the database, indexed by sensor number and save time. At the same time, video screenshots and video files can also be saved on the computer's hard drive for easy storage in mobile devices.
  • the video monitoring background system sends a video viewing command to open the sensor intelligent power module through the Modbus TCP protocol to provide power to the video sensor, and the sensor is powered by 24V.
  • the video signal of the internal conductor of the GIS is collected by using a video sensor mounted on the GIS housing, and the signal is sent to the video server through the signal cable.
  • the sensor addresses video monitoring of the position of the isolating switch, grounding switch and fast earthing switch contacts.
  • the video server After receiving the video signal, the video server decodes and re-encodes the video signal, and sends the data to the video monitoring background system through the IP/TCP protocol.
  • the video monitoring background system obtains the sensor number and classifies the sensor data through decoding and analysis.
  • the corresponding video information is obtained by clicking the corresponding node on the video monitoring background system.
  • the video monitoring background system decodes and analyzes the digital signal, including:
  • the video monitoring background system When the video monitoring background system receives the video signal, it identifies different video information streams according to the IP address and the channel number;
  • the smart power module is started;
  • Classify sensor data extract valid video images, and save video images at the same time
  • the monitoring video window is closed, and the background monitoring software automatically sends a sensor disconnection power supply command to the corresponding sensor intelligent power module to end the power supply to the video sensor.
  • the invention can realize the video collection of the internal conductor of the GIS, and then convert the video signal into a network signal and send it to the video monitoring background system to realize the separation of the GIS isolation switch contact, the grounding switch contact and the fast grounding switch contact. Remote monitoring and centralized management of status.

Abstract

本发明提供了一种GIS设备内部视频监测系统及方法，其特征在于，包括视频传感器、视频服务器、智能电源模块和视频监测后台系统组成。所述视频传感器安装在GIS壳体上用于对GIS内部导体的分合状态进行实时监测，并把监测数据转换为网络数字信号发送到远端视频监测系统进行统一管理。

Description

一种GIS设备内部视频监测系统及方法
本申请要求于2014年10月14日提交中国专利局、申请号为201410542496.5、发明名称为“一种GIS设备内部视频监测系统及方法”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本公开涉及智能电网高压电器智能在线监测设备技术领域，尤其涉及一种GIS设备内部视频监测系统。
背景技术
气体绝缘金属封闭组合电器(GIS)是电力系统中的重要组成设备之一，它是保护电力系统安全运行和控制电力系统电路的重要设备，因此GIS的运行状态关系到整个电力系统的安全。
GIS设备结构复杂，长期运行过程中由于不可预见的机械故障或者电气故障，常出现开关触头的分合指示状态与触头实际的分合状态不相符的情况，或者分合不到位的情况。由于触头封闭在GIS内部，不能直接获得触头的实际位置，为GIS设备的安全运行埋下了隐患。
为了能够直接监测开关的分合状态，避免GIS运行事故的出现，对GIS设备的视频监测作为一种直接而有效的手段走入人们的视线。
发明内容
本发明实施例提供一种GIS内部导体的监测方法及系统，通过本发明实施 例提供的技术方案可以有效地解决GIS隔离开关触头、接地开关触头和快速接地开关触头的分合情况的在线监测问题。本发明实施例提供的技术方案可以解决视频传感器安装在GIS壳体上的密封和照明的问题，并把视频信号转换为数字信号，实现对开关设备壳体内部触头的视频的远程监测，为隔离开关，接地开关和快速接地开光触头位置的监测提供了有效的手段。
一方面，本发明实施例提供一种气体绝缘金属封闭组合电器(GIS)设备内部视频监测系统，包括GIS视频传感器、智能电源模块、视频服务器，以及视频监测后台系统，其中，GIS视频传感器安装在GIS壳体上用于对GIS内部导体的分合状态进行实时采集；所述GIS视频传感器通过视频服务器与视频监测后台系统连接，所述视频监测后台系统通过控制智能电源模块向视频传感器供电。
所述视频服务器与视频监测后台系统之间通过TCP/IP协议通信。
所述视频传感器在电源输入端和信号输出端均设置有浪涌保护器。
所述视频监测后台系统包括主程序模块、数据管理模块、信息交互模块，以及信号解码处理模块；所述主程序模块分别与数据管理模块、信息交互模块，以及信号解码处理模块相连。
所述视频传感器包括固定在GIS壳体上的观察窗外壳，该观察窗外壳与GIS壳体之间的界面为透光的玻璃，所述观察窗外壳内安装有光源、感光元件，所述感光元件的外周套设有绝缘套筒。
所述光源和感光元件分别设置在观察窗外壳的两个平行的腔室内。
所述观察窗外壳与GIS壳体之间安装有O型屏蔽圈。
另一方面，本发明实施例还提供一种GIS设备内部视频监测方法，所述方 法基于一种GIS设备内部视频监测系统，所述GIS设备内部视频监测系统包括GIS视频传感器、智能电源模块、视频服务器，以及视频监测后台系统，其中，GIS视频传感器安装在GIS壳体上用于对GIS内部导体的分合状态进行实时采集；所述GIS视频传感器通过视频服务器与视频监测后台系统连接，所述视频监测后台系统通过控制智能电源模块向视频传感器供电，所述监测方法包括：
视频传感器实时采集GIS内部导体的分合状态；
将所述分合状态以视频信号的形式通过电缆发送给视频服务器；
视频服务器接收到该视频信号后，将该视频信号转换为数字信号；
通过TCP/IP通讯协议将所述数字信号发送给视频监测后台系统；
视频监测后台系统对所述数字信号进行解码和分析；
视频监测后台系统将获取的分析结果以画面的形式展示给用户。
当且仅当视频监测后台系统需要接收视频信号时才启动智能电源模块工作。
所述视频监测后台系统对所述数字信号进行解码和分析，包括：
当视频监测后台系统接收到视频信号后，根据IP地址和通道号识别不同的视频信息流；
确定所述视频信息流无误后启动智能电源模块；
对接收到的视频信号进行解码和重新编码，通过解码分析，获取视频传感器的编号；
对传感器数据进行归类，提取有效的视频图像，同时保存视频图像；
最后关闭监测视频窗口，向智能电源模块发送指令关闭电源。
本发明实施例至少具有如下优点和积极效果：本发明实施例通过对隔离开关、接地开关和快速接地开关的触头位置进行视频采集，把采集到的视频信息通过视频服务器转换为数字信号输入视频监测后台系统进行统一管理，在GIS的隔离开关、接地开关或快速接地开关操作完成后可以直接确认该设备实际触头状态，是否分合到位，为GIS设备的可靠运行提供了保障。
附图说明
图1示出了GIS设备内部视频监测系统原理图；
图2示出了视频传感器工作原理图；
图3示出了视频监测后台系统原理图；
图4示出了视频监测后台软件系统的流程图；
图5示出了视频传感器结构图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
本发明实施例提供了一种GIS设备内部视频监测系统，包括视频传感器(101)、视频服务器(102)、智能电源模块(103)、视频监测后台系统(104)和人机交互模块(105)。如图1所示，视频传感器数量为一个或者一个以上，视频传感器安装在GIS壳体上用于对GIS内部导体的分合状态进行实时采集；GIS内部导 体的分合状态包括隔离开关触头、接地开关触头和快速接地开关触头的分合状态。视频传感器(101)与视频服务器(102)采用电缆相连接，视频监测后台系统(104)通过控制智能电源模块(103)向视频传感器(101)供电，然后通过与视频服务器(102)通讯，获取视频数字信号，信号编码采用H.264编码。所述视频服务器(102)与视频监测后台系统(104)采用网线连接。视频传感器(101)安装在GIS壳体内部，采集GIS内部视频信号，然后通过电缆把视频模拟信号送入视频服务器(102)，视频服务器(102)把模拟视频数据转换为数字信号，通过TCP/IP(网络通讯协议)把视频数据送入视频监测控台系统(104)，后台系统通过解码和分析把监测画面展现给用户。
整个监测系统运行过程中，通过智能电源模块(103)控制传感器供电，视频监控后台系统(104)根据需要发送操作指令打开智能电源模块(103)，实现对视频传感器供电的选择性控制，在需要进行视频监测时打开传感器电源，不需要监测时则关闭传感器电源。通过这种方式，可以大大的延长传感器的使用寿命。人机交互模块(105)获取视频监测后台系统(104)的数据并展示给用户，可以采用主接线的形式对视频数据进行展示，用户通过单击主接线上对应的标识点就可以获得当时的视频图像。
所述视频监测后台系统(104)负责处理、分析和管理视频数据，其硬件采用计算机完成，通过网络接口与视频服务器(102)相连接，如果有多个视频服务器则可以使用网络交换机进行组网。视频监测后台系统(104)可以接收多个视频服务器(102)的信号，并对信号进行分析和处理然后展现在以主接线为表现形式的人机交互界面上，监测数据保存在视频监测后台系统(104)设立的数据库中。该系统具有用户管理功能、视频解码功能、视频截图功能(视频采集 过程中点击截图功能按钮，会把当前1帧数据保存为图片)、视频录像功能(采集的时候是以录像的形式采集但是不保存录像，只有点击录像按钮时才进行保存)等功能。
本实例中，如图5所示，视频传感器包括传感器外壳(501)、观察窗外壳(503)、连接法兰(508)、接插件(507)、感光元件(包括光学镜头)(5012)、光源(506)、电源模块(502)、浪涌保护器(509)、摄像头(5010)。所述观察窗外壳(503)与GIS壳体之间的界面为透光的玻璃(5013)；传感器外壳(501)与观察窗外壳(503)采用外螺纹(505)和内螺纹连接，接插件(507)安装在连接法兰(508)上，使用螺钉把连接法兰(508)和传感器外壳(501)连接，所述接插件采用4芯接插件，通过电缆与视频服务器连接。所述光学观察窗负责视频传感器密封和透光功能。
所述观察窗外壳(503)与GIS壳体之间安装有O型屏蔽圈。
所述光源和感光元件(包括光学镜头)(5012)分别安装于观察窗外壳(503)内的两个平行的安装孔内，防止眩光干扰，感光元件(包括光学镜头)(5012)采用绝缘套筒(5011)进行隔离。例如所述光源可以安装在观察窗外壳3的第一安装孔内，所述感光元件(包括光学镜头)(5012)安装在与第一安装孔平行的第二安装孔内，此外，所述感光元件(包括光学镜头)(5012)的外周进一步套设有绝缘套筒(5011)，防止光源和感光元件(包括光学镜头)直接与传感器壳体接触，防止静电干扰。
所述的浪涌保护器(509)安装在电源输入端和信号输出端上，防止外界过电压干扰进入传感器内部电路中。所述的观察窗外壳(503)与GIS壳体的接触面直接安装有密封圈(504)，防止GIS中气体泄漏。所述传感器外壳(501)内部进一 步安装有电源模块，负责给光源、感光元件供电。该电源模块采用24V输入，输出为3.3V和5V，其中，3.3V为感光元件供电，5V为光源模块供电；浪涌保护器安装在外界电路与传感器电路之间。
图2示出了视频传感器工作原理，光源(202)向GIS内部提供光照，保证感光元件可以清晰地采集到触头的图像信息；感光元件(205)采集到触头图像信息后，把数据发送给微处理器(206)进行编码和处理后，通过信号输出模块(207)发送出去；电源模块(203)向各个模块提供需要的电能；浪涌保护器(204)与电源模块(203)和信号输出模块(207)相连接，防止外部浪涌信号对视频传感器的影响。
图3示出了GIS导体视频监测系统后台系统的原理图，所述视频监测系统后台系统包括主程序模块(304)、用户管理模块(303)、信息交互模块(305)、数据管理模块(306)、信号解码处理模块(302)、信息采集模块(301)和数据库(307)等。视频信号通过TCP/IP协议传入，经过信号解码处理模块(302)对视频信号进行分类和解码，解码后的数据传入主程序模块(304)；主程序模块(304)负责协调整个系统的运行，它接受用户的登录和操作，协调视频信息的显示和存储，所有的监测信息都保存在数据库(307)中方便调用。
图4示出了导体视频监测系统后台系统的主流程图，该流程图详细得说明了从用户登录到视频展示和视频存储的整个过程。程序从(4001)开始，然后进入权限审核(4002)，该步骤要求输入用户名密码，该用户名密码与系统中预存的用户名与密码进行匹配，如果匹配成功就会通过审核(4004)，如果匹配不成功则会要求重新输入用户名密码；通过审核(4004)后，开始读取配置文件 (4005)，读取配置文件后，开始解析配置文件(4007)。配置文件为整个视频监测系统的参数描述文件，配置文件的内容包括视频服务器的IP，视频服务器与视频传感器的对应关系以及各个监测点的配置信息。通过配置文件，视频监测系统就可以获得整个系统的配置参数，并根据配置参数生成视频传感器列表和导体视频监测系统主接线，如果解析错误则解析函数会返回0，并要求用户修改配置文件(4006)，如果解析正确解析函数会返回1，并生成传感器列表(4009)；传感器列表生成完成后，生成系统主接线(4010)并展现给用户；用户通过单击主接线上的传感器节点(4011)，系统会传递该节点的视频服务器IP和通道(4012)并与对IP参数和通道号进行格式审核，判断参数是否正确(4013)，如果参数不正确，则需要修改配置文件(4006)，如果参数正确，则开始检测网络状态(4014)，通过检测网络硬件的连接状态，可以使用ping命令进行网络探测，判断网络是否正常(4015)，如果网络不正常，则修改网络参数(4016)，然后重新连接网络(4017)；如果网络正常，则连接视频服务器(4018)和连接智能电源(4031)。在连接智能电源模块时，对连接时间进行监控，判断连接是否超时(4032)，如果连接智能电源模块超时，则会重新开始连接，并给出系统告警，如果连接成功，则向智能电源模块发送电源打开命令，打开传感器电源(4033)，智能电源模块如果打开成功，会返回操作成功命令，并进入等待关闭命令状态(4035)，如果没有返回操作成功命令，则重新连接智能电源模块(4031)；在连接视频服务器时，对连接时间进行监控，判断连接是否超时(4019)，如果连接服务器超时，则重新开始连接；如果连接成功，则获取视频流(4020)，可以根据视频服务器IP地址和通道号获取视频流数据。在获取视频流的过程中，可以对获取时间进行监控，判断获取视频流的时间是否超时(4021)，如果超时， 则返回重新连接视频服务器(4018)，如果未超时，则可以根据编码格式进行视频解码(4022)，并判断是否解码正确(4023)，如果解码函数返回0，则解码失败，如果解码函数返回1则解码正确，进行视频压缩(4024)；视频压缩(4024)模块对视频进行压缩处理，并检测压缩包大小，根据数据要求，判断压缩是否完成(4025)，如果达到数据要求则压缩完成，并进入预存缓冲处理(4026)，把数据保存在缓冲区中；然后从视频缓冲区读取视频数据，并进行视频显示(4027)，并同时监测显示状态(4028)，判断显示状态是否正常(4029)，如果视频显示不正常则检测网络状态(4014)；如果显示正常，则进入等待关闭命令(4030)；同时，数据存储模块会从视频缓冲区读取数据，并保存在数据库中，首先打开数据库(4036)，根据配置文件中的数据库连接信息打开数据库，判断数据库打开是否成功(4037)，如果打开不成功，则重新打开数据库(4036)，如果打开成功则验证视频数据(4038)，可以根据视频数据的编码格式对视频数据进行验证，判断是否通过验证(4039)，如果没有通过验证，则重新从视频缓冲区读取数据；如果通过验证则把数据保存在数据库(4040)中，并返回数据库修改状态。此外还可以对数据保存成功与否进行判断(4041)，如果保存成功则从预存缓冲区读取新的数据进入下一个循环；如果保存失败，则重新进行数据保存(4040)。
整个导体视频监测系统采用以太网进行组网，通过网络交换机把所有视频服务器都连接起来，导体视频监测后台系统安装在后台监控主机上并与交换机连接，通过以太网获取所有监测点的视频信息。视频信号采用基于TCP/IP协议的H.264编码进行传输，通过IP地址和通道号识别不同的视频信号。导体视频监测系统中使用的智能电源是可以通过网络控制的智能电源模块，在导体视频 监测系统打开视频窗口时通过网络命令打开智能电源模块，在导体视频监测系统关闭视频窗口时关闭智能电源模块，通过该系统不仅可以提高传感器的使用寿命，并且可以有效防止开关设备运行故障对导体视频监测系统产生干扰影响，智能电源系统采用Modbus TCP通信协议进行通讯。导体视频监测系统后台软件还具有截图功能和视频录制功能，视频数据和图像数据以二进制文件的形式保存在数据库中，通过传感器编号和保存时间进行索引。同时，视频截图和录像文件也可以保存在电脑硬盘上，方便存入移动设备中。
本发明实施例公开的一种GIS内部导体的视频监测方法，它包括以下步骤：
(1)视频监测后台系统发送视频查看命令，通过Modbus TCP协议打开传感器智能电源模块，向视频传感器提供电能，传感器采用24V供电。
(2)利用安装在GIS壳体上的视频传感器采集GIS内部导体的视频信号，并把信号通过信号电缆送入视频服务器。该传感器可以解决隔离开关、接地开关和快速接地开关触头位置的视频监测。
(3)视频服务器收到视频信号后对视频信号进行解码和重新编码，通过IP/TCP协议把数据发送到视频监测后台系统。
(4)视频监测后台系统通过解码和分析，获得传感器的编号并对传感器数据进行归类。通过点击视频监测后台系统上的对应节点获得对应的视频信息。
其中，所述视频监测后台系统对所述数字信号进行解码和分析，包括：
当视频监测后台系统接收到视频信号后，根据IP地址和通道号识别不同的视频信息流；
确定所述视频信息流无误后启动智能电源模块；
对接收到的视频信号进行解码和重新编码，通过解码分析，获取视频传感器的编号；
对传感器数据进行归类，提取有效的视频图像，同时保存视频图像；
最后关闭监测视频窗口，向智能电源模块发送指令关闭电源。
(5)通过视频监测后台系统获取视频信息后，可以选择对监测画面进行截图或录制视频，所有监测数据统一保存在数据库中以便以后检索和查看。
(6)监控视频查看结束后，关闭监测视频窗口，后台监控软件会自动向对应传感器智能电源模块发送传感器断开供电指令，结束对视频传感器的供电。
通过本发明可以实现对GIS内部导体的视频的采集，然后把视频信号转变为网络信号发送到视频监测后台系统，实现对GIS隔离开关触头、接地开关触头和快速接地开关触头的分合状态的远程监测和集中管理。
对所公开的实施例的上述说明，使本领域专业技术人员能够实现或使用本发明本申请。对这些实施例的多种修改对本领域的专业技术人员来说将是显而易见的，本文中所定义的一般原理可以在不脱离本发明本申请的精神或范围的情况下，在其它实施例中实现。因此，本发明本申请将不会被限制于本文所示的这些实施例，而是要符合与本文所公开的原理和新颖特点相一致的最宽的范围。

Claims (10)

  1. 一种气体绝缘金属封闭组合电器(GIS)设备内部视频监测系统，其特征在于，包括GIS视频传感器、智能电源模块、视频服务器，以及视频监测后台系统，其中，GIS视频传感器安装在GIS壳体上用于对GIS内部导体的分合状态进行实时采集；所述GIS视频传感器通过视频服务器与视频监测后台系统连接，所述视频监测后台系统通过控制智能电源模块向视频传感器供电。
  2. 如权利要求1所述的GIS设备内部视频监测系统，其特征在于，所述视频服务器与视频监测后台系统之间通过TCP/IP协议通信。
  3. 如权利要求1所述的GIS设备内部视频监测系统，其特征在于，所述视频传感器的电源模块输入端和信号输出模块的输出端均与浪涌保护器相连。
  4. 如权利要求1所述的一种GIS设备内部视频监测系统，其特征在于，所述视频监测后台系统包括主程序模块、数据管理模块、信息交互模块，以及信号解码处理模块；所述主程序模块分别与数据管理模块、信息交互模块，以及信号解码处理模块相连。
  5. 如权利要求1所述的一种GIS设备内部视频监测系统，其特征在于，所述视频传感器包括固定在GIS壳体上的观察窗外壳，该观察窗外壳与GIS壳体之间的界面为透光的玻璃，所述观察窗外壳内安装有光源、感光元件，所述感光元件的外周套设有绝缘套筒。
  6. 如权利要求1所述的一种GIS设备内部视频监测系统，其特征在于，所述光源和感光元件分别设置在观察窗外壳的两个平行的腔室内。
  7. 如权利要求1所述的一种GIS设备内部视频监测系统，其特征在于： 所述观察窗外壳与GIS壳体之间安装有O型屏蔽圈。
  8. 一种GIS设备内部视频监测方法，所述方法基于如权利要求1所述的一种GIS设备内部视频监测系统，其特征在于：
    视频传感器实时采集GIS内部导体的分合状态；
    将所述分合状态以视频信号的形式通过电缆发送给视频服务器；
    视频服务器接收到该视频信号后，将该视频信号转换为数字信号；
    通过TCP/IP通讯协议将所述数字信号发送给视频监测后台系统；
    视频监测后台系统对所述数字信号进行解码和分析；
    视频监测后台系统将获取的分析结果以画面的形式展示给用户。
  9. 如权利要求8所述的一种GIS设备内部视频监测方法，其特征在于：当且仅当视频监测后台系统需要接收视频信号时才启动智能电源模块工作。
  10. 如权利要求8所述的一种GIS设备内部视频监测方法，其特征在于：
    所述视频监测后台系统对所述数字信号进行解码和分析包括：
    当视频监测后台系统接收到视频信号后，根据IP地址和通道号识别不同的视频信息流；
    确定所述视频信息流无误后启动智能电源模块；
    对接收到的视频信号进行解码和重新编码，通过解码分析，获取视频传感器的编号；
    对传感器数据进行归类，提取有效的视频图像，同时保存视频图像；
    最后关闭监测视频窗口，向智能电源模块发送指令关闭电源。
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