| 摘要 |
There is described a manufacturing system comprising a production system operable to process starting materials to output a product. In an embodiment, the manufacturing system includes a sensor which is operable to generate a data signal representative of a parameter of the production system, the sensor having associated therewith a signalling device comprising a retro-reflecting modulator which receives an incoming light beam from a good signalling device associated with a system manager, modulates the incoming light beam in accordance with the data signal, and retro-reflects the modulated light beam conveying the data signal back to the second signalling device. In another embodiment, the manufacturing system includes an actuator which is operable to vary a parameter of the production system in accordance with a control signal from the system manager, the system manager having associated therewith a first signalling device having a retro-reflecting modulator which receives a light beam from a second signalling device associated with the actuator, modulates the received light beam in accordance with the control signal, and retro-reflects the modulated light beam back to the second signalling device.
|
