| 摘要 |
Several methods are known for registering electric signals and/or switching processes of signal systems in mines. Thus, for example, the registration of the signals by means of electromechanically deflected writers or the like on paper, the registration by means of electro-mechanically or electro-statically deflected ink jets on paper or the registration by burning on conductive paper by means of current. For the registration of rapidly changing values it is known to increase the paper advance, to represent the signals by spreading over the entire writing width or to use fast-writing additional devices. The aforementioned methods of registration are found to be partly complex, partly obscure in the arrangement of all relevant data and partly very susceptible to interference. To avoid the aforementioned disadvantages, it is proposed that the electric signals and/or switching processes of the signal systems are entered in the form of digital input signals, and the electric operating variables of the conveyor machine are entered in the form of analog input signals, into a buffer store (5) and are stored in the latter for a particular time, from which the input signals can be output by means of a microprocessor (4) with accurate time-correlation of the individual signals, switching processes and operating sequences to one another via a printer (7). <IMAGE>
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