| 摘要 |
<p>PURPOSE:To control a burglar alarm by combining a keyless entry device generating a locking signal or an unlocking signal locking or releasing a locking device with the burglar alarm. CONSTITUTION:A burglar crime prevention device 10 is composed of a keyless entry device 1 and a burglar alarm 2, and a plurality of key switches 11 are fitted to the keyless entry device 1. The switches 11 are connected to a variable code number comparator 52 constituting an unlock code comparison means, a gate 53 and an OR gate 54 together with a fixed-code number comparator 51 and a counter 74 through a BCD converter 50. When each column of a number input coincides with an unlock code number stored, the variable code number comparator 52 generates outputs in the counter 74 at every column, and the counter 74 generates a release signal in a locking controller 75 and releases a lock when all columns coincide. Accordingly, the release signal is transmitted over the burglar alarm 2.</p> |
