Information issuing method and system for earthquake tsunami alarm system

Abstract

The invention discloses an information issuing method for an earthquake tsunami alarm system, and the method comprises the following steps: leading a base station to send a public key for information verification key centering; leading a mobile terminal to receive the public key and store; leading the base station to use a private key for the information verification key centering to carry out digital signature on ETWS initial information, adding the ETWS initial information and the digital signature to a paging message and sending; and leading the mobile terminal to receive the paging message, verifying the ETWS initial information carried in the received paging message through the digital signature carried in the received paging message and the stored public key, and emitting a disaster alarm according to the verification result. The invention simultaneously discloses an information issuing system for the earthquake tsunami alarm system, which comprises the base station and the mobile terminal. The adoption of the method and the system can issue the ETWS information in a safe and timely manner.

Description

technical field [0001] The present invention relates to an earthquake and tsunami warning system (Earthquake and Tsunami Warning System, ETWS), in particular to an ETWS information publishing method and system. Background technique [0002] ETWS is a warning system for natural disasters proposed by the 3rd Generation Partnership Project (3GPP). ETWS is used to notify natural disasters through mobile communication networks. Since the mobile communication network covers almost the whole world and the popularity of mobile terminals, ETWS has a good application prospect. [0003] Currently, ETWS information is published in the following ways: [0004] 1. Send ETWS information through the paging channel; due to the limited capacity of the paging channel, the amount of information carried by a single paging message body cannot be too large, so that the ETWS information that the paging message can carry cannot be too large, and can only include Some brief information related to t...

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Problems solved by technology

[0005] 2. Send ETWS information through the broadcast channel; this method has poor real-time performance due to the periodic time interval between receiving and publishing messages on the broadcast channel, and the time interval between the time when the disaster is usually detected and the time when the disaster actually occurs is very short Short, especially for sudden natural disasters, before the disaster occurs, it may not be possible for each mobile terminal to receive ETWS information in time, and it will not be able to play an alarm role;

[0006] 3. Send ETWS information through the Enhanced Multimedia Broadcast and Multicast Service (E-MBMS); this method will prevent a large number of mobile terminal users who do not use this service from receiving disaster warnings due to the fact that the current E-MBMS is not widely used.

[0007] In order to avoid the problems in the above methods, the method of sending ETWS initial information through the paging channel and sending ETWS detailed information and verification information through the broadcast channel is often used at present, but the authenticity of the ETWS initial information sent by the paging channel in this method requires The verification information of the broadcast channel is verified, and people will take defensive measures as soon as they get the alarm. After receiving the verification information sent by the broadcast channel, the false alarm may have caused harm and disrupted people's daily work and life. ; It can be seen that how to release ETWS information safely and avoid the dissemination of malicious and fake ETWS information is an urgent problem that ETWS needs to solve at present

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