| 摘要 |
A stand-alone, portable video alarm system for monitoring a protected area selected by a user is described that includes a video detection sensor for issuing alarm system signals, including an intrusion alarm signal when the video detection sensor detects motion indicative of an intruder within the protected area, a secondary detection sensor to detect the intruder within said protected area, a modem for communicating command signals to and alarm system signals from the video alarm system, a user-controlled mobile display for transmitting said command signals to the video alarm system through said modem and for receiving said alarm status signals from the video alarm system through said modem, wherein the intrusion alarm signal is communicated from the video alarm system through the modem and onto the user-controlled mobile display only when the intruder is detected by both the video detection sensor and the secondary detection sensor.
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