KEYLESS SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide a keyless system allowing an operator to certify identification information in a short time even when used in a place where radio wave environment is unstable.

SOLUTION: When a radio communication part 3 of a portable machine 1 receives a start signal, a control part 4 compares its ID with the ID information included in the start signal and transmits the identification information from the radio communication part 3 when they agree. An electric lock device 10 is provided with a radio communication part 13 transmitting the start signal including the ID information of the portable machine 1 to be transmitted and receiving the identification information sent back from the portable machine 1 and a control part 15 transmitting the start signal to each portable machine 1 by every predetermined number of transmission frequencies in the predetermined order of transmission from the radio communication part 13 when receiving trigger input and outputting an unlocking command into a lock mechanism 14 when the identification information received by the radio communication part 13 is a correct signal. The control part 15 weights each portable machine 1 in accordance with frequencies of communication and sets the frequency of transmission of the start signal per portable machine to increase the frequencies of transmission as weight increases.

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