| 摘要 |
<p>PURPOSE:To incorporate the operator's voice into a control system to secure an ensured monitor and control of a plant, by giving an A/D conversion to the voice received by an FM radio device and then storing the sampling value of the original value into a storage device to compare it with the reference data when necessary. CONSTITUTION:The voice that transmitted from the FM transmitter 1A and received by the FM receiver 1B amplified up to a prescribed level by the amplifier 31 and then converted into a digital signal through the A/D converter 32. Then the sampling value of the original voice is obtained by the converter bus buffer 33 and with the sampling cycle of the pulse generator 34 and then stored in the auxiliary memory 5 through the CPU3. Then the stored voice is compared with the reference data when necessary and displayed on the CRT display device to be printed. Otherwise an interlocking signal is applied to the control board through a process input/ output device. In this way, the operator's voice is incorporated in a concrete way into the control system, thus securing an assured monitor and control of a plant.</p> |
