DISASTER PREVENTION BOARD FOR TUNNEL

PURPOSE:To provide the disaster prevention board for tunnel which easily executes the detector test according to each type in accordance with user's request in the case of a timer as well as the signal from a central disaster prevention board and arbitrarily changes the test start time in the c...

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Bibliographische Detailangaben
Hauptverfasser:	ISHII KENJI, SHINO TOSHIHIKO
Format:	Patent
Sprache:	eng
Schlagworte:	ALARM SYSTEMS EARTH DRILLING FIXED CONSTRUCTIONS MINING ORDER TELEGRAPHS PHYSICS SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, ORDRAINING IN OR OF MINES OR TUNNELS SIGNALLING SIGNALLING OR CALLING SYSTEMS
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Beschreibung
Zusammenfassung:	PURPOSE:To provide the disaster prevention board for tunnel which easily executes the detector test according to each type in accordance with user's request in the case of a timer as well as the signal from a central disaster prevention board and arbitrarily changes the test start time in the case of the timer. CONSTITUTION:If a test day changeover switch 102 shows a state different from standards, a main MPU 120 reads the day of a week set by a dip switch 103 and the test time set by a rotary switch 104, and a first detector test part 125 or a second detector test part 126 is started at this test time in this day of week. The main MPU 120 executes the detector test according to the type of the program in a ROM 111; and especially in the case of type 2, the second detector test part 126 for down lane is started from the first detector test part 125 for up lane by software.