| 摘要 |
<p>PROBLEM TO BE SOLVED: To recognize the moving direction of mobile objects on the side of monitors provided in a monitoring area by judging the entrance and exit of the mobile object by the disposing states of first and second information. SOLUTION: First and second sensors 26 and 27 provided in a gate 28 sends the detection signals of the mobile objects 40 and 50 to a monitoring terminal through a detection circuit 29b. In the order of generating the detection signals of the sensors 26 and 27, flag codes corresponding to them are stored in a detecting state register 137. MPU 12 executes a judging processing program 135 to judge entrance and exit. The judging processing program 135 referres to flag data stored in a register 137 and when the value is 011000, as data is stored in a detected disposing state in the order of the first sensor 26 and the second sensor 27, the mobile object is judged to enter. But when the value is 100100, the mobile object is judged to leave.</p> |
