Large-sized multilevel control system for warning civil defense

Abstract

The invention discloses a large-scale civil defense alarm multilevel control system. The system comprises a control network, an alarm release network and a communication network, wherein the control network consists of a high-level control center, a middle-level control center, a last-level control center and a control subcenter which are connected with one another through the communication network; the alarm release network consists of a subordinate alarming terminal and a non-subordinate alarming terminal; the subordinate alarming terminal is connected with the last-level control center and the control subcenter through the communication network; the control centers at all levels inside the control network adopt wired communication as the primary communication mode and satellite communication as the subsidiary communication mode; the control network transmits an alarm release command to the alarm release network; and the alarm release network executes the alarm release command. The large-scale civil defense alarm multilevel control system integrates the advantages of various networks has reliable communication and strong survivability and can meet the requirements of alarming in a large scale.

Description

technical field [0001] The invention relates to a civil defense alarm control system, in particular to a large-scale civil defense alarm multi-level control system based on multi-network fusion. Background technique [0002] The civil defense alarm control system can issue disaster alarms at the first time, so as to guide the public to take preventive measures and reduce the impact of disasters. Natural disasters occur frequently in our country, and destructive disasters such as earthquakes and floods often paralyze conventional communication systems. Building a civil defense alarm control system with high reliability and strong invulnerability is of great significance to ensure the safety of people's lives and properties. [0003] The existing civil defense alarm control system mainly consists of a control center, an alarm terminal, and a communication network. There are many options for the communication network, such as using wired network or ultrashort wave wireless co...

AI Technical Summary

Problems solved by technology

However, in the event of strong destructive disasters such as floods, earthquakes, and wars, the wired communication network is easily destroyed and difficult to restore in a short period of time

The ultrashort wave wireless communication network is easy to set up and the cost is low, but the line-of-sight transmission distance is limited and the reliability is not high, and once the wireless station in the control center is destroyed, the wireless control function of the network will be lost immediately

[0004] Compared with wired communication and ultrashort wave communication, satellite communication has obvious advantages in reliability and invulnerability, but the cost of satellite communication is high, and it is suitable for communication guarantee in sudden or other unconventional conditions

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