In recent years, China’s power system emergency management work has achieved remarkable results, and the power emergency management system is becoming more and more perfect. The introduction of a professional visual command and dispatch system will transform the existing power emergency management work from a technical level. Further improve the efficiency of power emergency management, reduce the cost of power emergency management, whether it is in the accident emergency command and dispatch, security online warning management or on-site dispatch management, will play a huge role. Professional visual command dispatch
With the introduction of a professional visual command and dispatch system based entirely on the command and dispatch level, the problems faced by the power system will be solved. The professional visual command and dispatch system is centered on visual scheduling and emergency command. It also integrates multi-party video conferencing, remote monitoring, image transmission and other services to provide an integrated visual emergency management solution for the power system.
The professional visual emergency command system consists of dispatching platform, dispatching seat, video wall, video, network management and various forms of dispatching terminals. The dispatch terminal is located at all remote points that can accept remote dispatch or remote command. The types include videoconferencing terminals, video monitoring terminals, telephones, and mobile phones. The video conference terminal is mainly located in the subordinate power unit that accepts command and dispatch or on the mobile command vehicle, and can perform two-way visual communication with the dispatch center. The video monitoring terminal is mainly located in various substations, transmission lines and mobile command vehicles to provide scheduled access to on-site monitoring images. Phones and mobile phones are used for personal voice-only scheduling access.
The command center, sub-command center, or leadership desk can all perform unified scheduling and unified command on the above remote resources. No matter whether it is point-to-point or point-to-multipoint, the remote image can be transmitted to the large screen or PC display device of the dispatch center in an instant. On the glance. You can schedule operations by grouping and setting up plans. During the scheduling process, professional command and dispatch functions such as strong insertion, forced release, hot-key call, call transfer, transfer, video playback, and single-messaging of short messages can be implemented. All of the above operations are based on the touch-scheduled screen, which can be based on a simple and intuitive interface to achieve one-touch direct calls, and can also directly call the other party's name through voice recognition for more convenient scheduling and commanding.
In addition to command and dispatch, the system can also conduct video conferencing and video surveillance services. Based on the videoconferencing service, point-to-point or multipoint conferences can be conducted at any time between each dispatching command center and each two-way visual scheduling point to achieve remote visual communication and communication. Based on the video surveillance service, remote real-time monitoring images and on-demand monitoring videos can be browsed and called at any time, and monitoring images can be transmitted between multiple dispatching command centers.
Visual Security Online Management
In the specialized visual command and dispatch system, the network video surveillance system can be integrated to realize visualized online safety early warning management. The on-line management of power security mentioned here mainly refers to the online safety management of power infrastructure, including unattended substations and transmission lines.
Substations are the hub of the power grid and are also an important target for power safety management. The construction of unattended substations through video surveillance can help the power sector to effectively save human resources and improve safety management efficiency. The network video surveillance system can provide a fully networked unattended substation solution and access to a visual command and dispatch system, which can realize visual online substation security early warning and management: set monitoring points at each substation and set up a monitoring center at the dispatch center. The dispatcher can grasp the image, sound, and environmental dynamic parameters of each substation in time, and can quickly command and dispatch for emergency treatment when problems arise.
Each substation conducts planning and deployment of monitoring points according to the number of objects that need to be monitored and the functions that need to be completed. Each monitoring point has a video encoder as its core. It is connected to the analog camera through a video interface and a control interface. The alarm interface is used to access the corresponding alarm devices such as door magnetic, infrared, smoke, and temperature sense, and the microphones are connected through the audio input and output interfaces. , Loudspeakers and other audio equipment.
Cameras are used to capture images of substation monitoring sites, including gates, perimeters, computer rooms and substations. The access control system is deployed at the gate of the substation and can register internal employees' access. It can send an alarm signal when someone illegally invades. The smoke and temperature sensing devices mainly detect the internal environment temperature, smoke and dust, and prevent fires. In case of alarm, they can send alarm signals in time. Infrared radiation alarms are mainly deployed in surrounding areas of substations. When someone climbs over the wall and enters the station, infrared alarms will be triggered. These alarm devices are connected to the video encoder through alarm monitoring. When an alarm occurs, the linkage can be performed through the management platform. In the dispatch center, sound and light alarms, image switching, and recording control can be implemented.
The pickups and loudspeakers are audio intercom equipments, which can be connected to the monitoring system through the video encoder audio input and output interface to realize the voice intercom of the dispatch center management personnel and the monitoring field personnel, thereby realizing the remote scheduling of the monitoring points by the dispatch center. At the same time, this function can also realize the remote maintenance guidance of substation equipment, thereby shortening the problem solving time and reducing manpower, time and cost.
In addition, the monitoring and management platform can also be integrated with the existing substation power environment monitoring system. The environment monitoring system collects operational faults such as transformers, lines, switches, circuit breakers, and instrumentation as well as abnormal operating environments such as voltage, current, and temperature. Can trigger the video surveillance system linkage, in the dispatch center for sound and light alarm, image switching and video control.
The on-line safety management of transmission lines is similar to the above-mentioned substations. Through the deployment of a network video surveillance system, the entire transmission line monitoring is carried out, including the building tree environment around the high-voltage electric towers, natural disasters of thunder and lightning, ice-covered conductors, and foreign body suspension of wires. Image information such as line danger points can be uploaded to the dispatch center in real time for centralized safety monitoring and management.
On-site visualization management
The visual command and dispatch system can achieve on-site visualized emergency management through scheduling access to mobile video, thereby improving on-site processing efficiency, improving on-site emergency response capabilities, and minimizing disaster losses. The deployment of on-site mobile video can use mobile communication vehicles, back-to-back personnel, and other methods. Terminal devices can use videoconferencing endpoints or video surveillance endpoints. The transmission of signals is based on 3G mobile networks.
Taking a video surveillance terminal as an example, by deploying a 3G-capable wireless video encoder, the accident scene image and sound can be uploaded to the command and dispatch center in real time, both on-board and in-person, using the voice intercom function of the encoder, and the command and dispatch center. You can also conduct real-time calls with on-site personnel to remotely direct and instruct personnel on site.
In places where 3G networks are covered, 3G wireless video encoders are generally preferred due to high transmission bandwidth, allowing for smooth and smooth upload of full frame rate live video. According to the 3G network type, 3G wireless video encoders are also divided into CDMA20001XEvDo, WCDMA, and TD-SCDMA models.
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