| 摘要 |
PURPOSE: An alarm system is provided to protect life and property against criminals executed in an underground parking lot. CONSTITUTION: The system comprises a portable wireless transmission remote controller, an underground receiver, and a control center display controller. To inform a dangerous situation of a guard or another person in occurrence of crime or feeling of danger, the remote controller is operated to rapidly transmit present location to the display controller. Moreover, an unmanned monitoring camera is linked with the system, leading to maximal monitoring effectiveness.
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