INFORMATION TRANSMISSION SYSTEM

摘要

There is provided an information transmission system capable of easily transmitting safety information even if communication conditions are poor. The information transmission system comprises a message generation unit for creating a first message which contains specific information having information on a location and is to be transmitted to mobile phones. It comprises a database which is used for creating the first message and contains location information per mobile phone and safety information per user of the mobile phone. The first message has two or more hyperlinks used for sending a reply regarding safety of a user of a transmission-destination mobile phone. URL information associated with the hyperlink contains different parameters depending on a type of the reply regarding safety of the user of the mobile phone. The safety information in the database is updated based on the reply regarding safety by use of any one of the two or more hyperlinks.