| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide positional information service to make not only sales of equipment but security and safety more efficient from the standpoint of the user (contractor) by definitely deciding and developing positions of the individual agencies. SOLUTION: The positional information is acquired by defining a commercial personal computer and a car navigation system as base stations and making the other party carry the cellular telephone and a repeater (latitude and longitude analyzer) constituted to be used for longer time than the conventional product by adding an additional value of mechanism design change of a single 3 battery part to a lithium ion battery on the basis of a portable GPS unit IPS-8000 (manufactured by SONY) and its basic specification, and acquisition of the positional information is achieved by a GPS communication position information search system. Thus, the security, the safety from the standpoint of the user (contractor) are made to be more efficient, the positional information about a person who has the repeater (latitude/longitude analyzer) and the object is provided from the side of the base station when it is desired to be known and distributed anywhere in the whole world by the Internet by adopting ISDN and DSL.</p> |
