Power intercom broadcasting command and dispatch communication system

In the context of the booming development of the power industry today, the stable operation and efficient management and control of various energy plants such as hydropower and wind power play a pivotal role in the entire power supply system. Among them, the Keneng Convergence Power Dispatching and Control Center Communication Solution is like a solid and reliable "escort lighthouse", providing "escort" throughout the construction and operation of the energy plant centralized control center, helping to enhance the professional level of power communication dispatching management, effectively reducing the operating costs of power enterprises, and making power operations smoother, more efficient, and more economical.

I. Analysis of the Current Situation of the Power Industry

1. Plagued by Difficulties in Maintenance: Currently, each power system is often deployed independently, resulting in poor compatibility among different brand equipment and systems during the actual operation and maintenance process, like a "jigsaw puzzle" pieced together, lacking integrity and synergy. Each brand has its own unique technical architecture, operation logic, and maintenance requirements. Operation and maintenance personnel need to be proficient in multiple technical systems to handle various faults and daily maintenance tasks. The complex and diverse system interfaces and instruction operations make the maintenance operation steps cumbersome. A slight mistake may trigger a chain reaction, greatly increasing the difficulty coefficient and workload of maintenance work.
2. Unable to Achieve Unattended Operation: Each power company has been in a passive response state for a long time, only limited to answering calls from provincial and local power dispatching centers. People need to be on duty by the phone all the time to prevent missing important instructions. This not only consumes a large amount of labor costs but also is prone to problems such as untimely answering and delay in information transmission in cases of personnel fatigue and unexpected situations, making it difficult to meet the development trend of modern efficient and intelligent operation and maintenance. There is still a big gap from the ideal unattended operation mode.
3. Obvious Shortcomings in Management Inconvenience: As the key hub for coordinating the operation of various power companies, the centralized control center has obvious "shortcomings" in call management. Facing the numerous and complicated call exchanges among many power plants, the centralized control center lacks unified and efficient management and control means. It cannot monitor the content and status of calls in real time, making it difficult to grasp the overall communication situation at the first moment and unable to intervene in abnormal call scenarios in a timely manner, seriously restricting the exertion of the overall dispatching and commanding efficiency.

II. Focus on Diversified Communication Requirements

1. Requirements for Collaborative Ringing and Selective Answering: The timeliness of communication between each power plant and provincial and local power dispatching centers is of crucial importance. To avoid delaying the transmission of dispatching instructions due to missed calls, it is urgently necessary to enable the provincial and local power dispatching center phones of power plants and the phones of the power command and dispatching center to achieve the function of simultaneous ringing. In this way, whether on the front line of the power plant or in the core area of the command and dispatching center, incoming call reminders can be received synchronously, and operators can flexibly and independently select the most suitable answering terminal according to the actual situation to ensure that important calls are "not missed" and the information transmission is unobstructed.
2. Requirement for Visual Monitoring: On the "intelligent brain" of the centralized control center - the large screen and the centralized control dispatching console, there should be a "sharp eye" that can clearly perceive the details of incoming calls from each power plant. By intuitively displaying key information such as the incoming call numbers, incoming call times, and incoming call frequencies of each power plant, dispatchers can quickly identify emergency and important incoming calls and prioritize handling core matters. Meanwhile, the real-time monitoring of the status of each power plant's telephones (such as idle, in a call, faulty, etc.) is like grasping every "pulse" of communication, facilitating the timely discovery of potential communication hazards and making preparations for countermeasures in advance.
3. Requirements for Broadcasting and Record Traceability: According to different dispatching scenarios, it is extremely necessary to flexibly carry out file broadcasting and announcement operations in a partitioned or whole-area range. For example, in scenarios such as the issuance of emergency repair tasks and the announcement of safety matters, through precise broadcasting, information can be instantaneously covered. And the call record query and recording playback functions supported by the system are like installing a "black box" for the communication process, facilitating post-event review and analysis, summarizing experiences and lessons, and also providing a strong basis for responsibility tracing and process optimization.
4. Requirement for Emergency Communication in Case of Power Outage or Network Disconnection: The power industry environment is complex and changeable, and sudden situations such as power outages and network disconnections occur from time to time. In such cases, each power plant must not be trapped in a "communication island" and must ensure that incoming and outgoing calls are as smooth as usual. This requires the communication system to have a powerful emergency guarantee mechanism. Even when Affected by external unfavorable conditions, it can rely on its own "resilience" to maintain the stable operation of basic communication functions.

III. Detailed Explanation of Power Plant Dispatching Networking and System Functions

1. Deployment Architecture of the Core Dispatching System: The power plant centralized control fusion dispatching solution carefully constructs a "central nervous system" -like dispatching system. A set of fully functional and high-performance dispatching system and host are deployed in the headquarters computer room, which are connected to the local area network via network cables to build a "main road" for the rapid flow of information. Based on this, other branch power plants break through the information "barriers" through network technology means and achieve seamless docking and interconnection with the headquarters network, constructing a closely connected communication "neural network".
2. Layout of Power Plant Gateways and Lines: In the computer rooms of each power plant, the hybrid-port trunk gateway is like a "communication bridge". One end is closely connected to the internal local area network, integrating into the "micro-circulation" of local communication in the power plant; the other end is connected to the PSTN line provided by the operator, opening up the "main artery" of communication with the external public network, and is steadily docked to the headquarters dispatching system through network protocols to achieve internal and external information interaction. And the analog telephone is connected to the FXS port of the gateway, just like plugging into a "communication socket", smoothly achieving the incoming and outgoing operations of provincial and local power dispatching, ensuring that the instructions "come in and go out" clearly.
3. Advantages of Independent Deployment of Internal Line Telephones: To ensure efficient and independent internal communication in power plants, each plant and the centralized control center carefully arrange and independently deploy one or more internal line telephones. This design is like opening up an exclusive "communication lane" inside, allowing internal dialing between each power plant and the centralized control center without being affected by external interference, while not affecting the normal operation of telephone communication between each power plant and provincial and local power dispatching centers at all, achieving "parallel tracks" of internal and external communication without interference.
4. Emergency Guarantee Mechanism for Power Failure Escape: Facing "natural enemies" of communication such as power outages and network disconnections, the system ingeniously sets up a power failure escape function. Once an abnormality occurs, the PSTN lines of provincial and local power dispatching are like having an "emergency navigation", able to bypass the fault nodes and directly "rush" to the analog telephone, ensuring that the "lifeline" of the call remains unobstructed, making the power dispatching command as stable as a rock and in an orderly manner even in extreme environments.
5. Comprehensive Management and Monitoring by the Centralized Control Center: The dispatching console of the centralized control center, sitting in the "command center", is endowed with a powerful "management scepter". It can conduct fine-grained management and monitoring of each power plant's terminals, from grasping the overall communication state to making decisions on each incoming call answering. Dispatchers can have everything under control. When incoming calls from various power plants "swarm in", they can selectively answer according to factors such as the priority of incoming calls and the urgency of business, firmly controlling the rhythm of communication.
6. Collaborative Ringing and Visual Presentation on the Large Screen: The left and right telephones on the dispatching console of the general centralized control center have a clear division of labor, accurately set as provincial and local power dispatching phones respectively, and are in "resonance" with the corresponding phones of each power plant. Once there is an incoming call, all parties ring simultaneously, and when any one side answers first, the other extensions will stop ringing tacitly to avoid the interference of "noisy ringing" to work. Meanwhile, the large screen of the general centralized control center is deeply integrated with the emergency dispatching system, clearly projecting information such as the incoming call status and real-time status of telephones of each power plant, providing intuitive and detailed "visual intelligence" for dispatching decisions.
7. Realization of Diversified Broadcasting Functions: At the level of broadcasting functions, the system is like a "universal broadcaster", which can carry out diversified operations such as single-point precise announcements, grouped targeted broadcasts, all-member emergency announcements, and music atmosphere creation as needed. Whether it is to convey repair instructions, issue safety warnings, or adjust the working atmosphere, it can achieve efficient information dissemination through the broadcasting function.