| 摘要 |
A Sophisticated algorithm for processing sensors data in a four dimensional space including location and time, includes a method for detecting an intruder's path in a location and time space, comprising: a. Measuring signals from a plurality of sensors distributed in a protected location; b. storing the measured sensors data, together with a time stamp for each measurement; c. transmitting the sensors data to a processing center; d. processing the sensors data using the location and time relationships to detect movement of a source of the signals; and e. issuing an alarm if and when a movement of the source is detected. A method for detecting unauthorized access to oil, gas or other pipes, by monitoring the protective cathodic voltage and detecting changes in the voltage which are indicative of a technical failure or a deliberate attack on the pipe.
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