| 摘要 |
The invention relates to an electrical interconnection of the instruction transmitters (2, 3, 4), instruction receivers (5, 6) and measurement transducers (7) allocated to an operating point (1) in an underground mining operation, comprising a control device (8) which logically combines the input and output signals (S1-Sn and, respectively, E1-En) and, in consequence, enables the operating point (1) to be controlled. Each of the instruction receivers (5, 6), instruction transmitters (2, 3, 4) and measurement transducers (7) is associated with a module (9-9<n>), which modules are connected in series to the control device (8) via a single data line (10). Each module (9-9<n>) has a processor (11), a bidirectional line driver (12) and a circuit (13) for interrogating the instruction transmitters (2, 3, 4) and the measurement transducers (7) and for activating the instruction receivers (5, 6). The interconnection makes it possible significantly to decrease both the production and the maintenance expenditure by using serial data traffic. All instruction transmitters (2, 3, 4), instruction receivers (5, 6) and measurement transducers (7) are addressed, together with the uncoded modules (9-9<n>), via a serial data traffic. The modules (9-9<n>) are all constructed of the same design, which ensures inexpensive mass production. The spares holding is small. <IMAGE>
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