| 摘要 |
The invention concerns a method and a sensing device that monitors at a central location the conditions of a remote location. The device has a detecting unit (14) which detects the conditions at the remote location; a transmitting module (18) that reads and remotely transmits information containing the detected conditions at the power level of a power source (50) powering the transmitting module (18); a base module (22) that receives, selectively processes and conveys the information telephonically; and an identifying device (26) that identifies the remote location of the call before the call is completed. Another aspect of the invention is to encode the physical location and the detected conditions at the remote location and transmit them to the central location using the least number of telephone lines, where they are processed to monitor the conditions at the remote location. |
