| 摘要 |
PROBLEM TO BE SOLVED: To provide a communication system for deciding the position of a user terminal without estimating any three-dimensional coordinate and providing various services to the user terminal by using the positional information of the user terminal. SOLUTION: This system is constituted of a marker for transmitting a radio signal, a teacher terminal for preliminarily transmitting teacher reception information and teacher terminal position information to a server, a user terminal for transmitting user reception information to the server, and a server which is provided with a means for preparing a teacher information table based on the teacher reception information and teacher terminal position information, a means for preparing a user measurement information table based on the user reception information, a user terminal position information deciding means for deciding the user terminal position information based on the teacher information table and the user measurement information table, and a teacher information table updating means for updating the teacher information table. |
