無線データ通信システム

Title:

無線データ通信システム

Document Type and Number:

Japanese Patent JP3590764

Kind Code:

B2

Abstract:

PROBLEM TO BE SOLVED: To surely make opposite party between radio units to be identified so as to perform communication and to reduce battery consumption quantity being the power source of a radio slave machine, when a radio master machine, a transmission/reception radio machines, a transmission radio machine and a reception radio machine coexist. SOLUTION: Division information dividing various types and specification information, specifying one of a plurality of radio units in the same type, are allocated to the radio master machine 1, the transmission/reception radio slave machines 2, the reception radio slave machine 3 and the transmission radio slave machine 4. When a call signal is transmitted, division information and specification information are included in the call signal. The radio unit receiving the call signal compares self-division information and specific information. When they match, reception operation is performed continuously, and the reception operation is stopped when they do not match.

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