| 摘要 |
<p>The lock has a housing (14), and a movable bolt installed inside the housing. Control units comprise a radiofrequency transmitter-receiver (30) and an operable switch i.e. push button (22) located outside the housing to supply the radio frequency transmitter-receiver. The control units cause the movement of the bolt when the switch is activated and a transponder (50) is carried in the vicinity of the transmitter-receiver simultaneously. The switch is installed in a fixed position with respect to the housing. The transmitter-receiver has an antenna (36) located in the vicinity of the switch.</p> |
