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1. 发明专利

JPH0239395A FIRE RECEIVER 失效
公开(公告)号：JPH0239395A
公开(公告)日：1990-02-08
申请号：JP18972788
申请日：1988-07-29
申请人： HOCHIKI CO
发明人： OSAWA ISAO , ONO KAZUTOSHI , HOSHINA SEIICHI , TORIGOE YASUO
IPC分类号： G08B17/00 , G08B23/00
摘要： PURPOSE:To improve reliability by setting an area sound stop mode to an operation of an area sound stop switch in any of a usual time and a fire receiving time in a state that closing of a cover is detected, and also, in a state that opening of the cover is detected at the fire receiving time. CONSTITUTION:At the time of inspection, opening of a cover is detected, an area sound stop mode is set, and sounding of an area sound by an operation test in the course of inspection can be inhibited. On the other hand, the inspection is ended and when a cover 46 is closed without releasing an area sound stop switch, an area sound stop mode is released forcibly. Thereafter, fire receiving is executed, and when a setting operation of the area sound stop switch 36 is executed after an area sound is sounded, closing of the cover is discriminated, it is discriminated that fire receiving is being executed and the area sound stop mode is set effectively, and the area sound sounded by fire receiving can be stopped effectively. Also, in case when the area sound stop switch 36 has been operated again, a restoring operation is discriminated, and setting of the area sound stop mode is released.

2. 发明专利

JPH0239394A ACCUMULATION-TYPE FIRE RECEIVER 失效
公开(公告)号：JPH0239394A
公开(公告)日：1990-02-08
申请号：JP18972688
申请日：1988-07-29
申请人： HOCHIKI CO
发明人： OSAWA ISAO , ONO KAZUTOSHI , HOSHINA SEIICHI , TORIGOE YASUO
IPC分类号： G08B17/00
摘要： PURPOSE:To facilitate the confirmation of an accumulation time by constituting the title fire receiver so that an accumulating lamp for displaying a fact that an accumulation operation is being executed flickers, for instance, up to 20 seconds, and lighted from 20 seconds to 50 seconds after having received a fire, when a fire operation test at the time of inspection or the fire receiving in a steady monitoring state is executed. CONSTITUTION:When timers T1, T2 are started, the accumulation lamp 46 is flickered, a sensor line is released once, and subsequently, the timer T1 monitors whether the accumulation time reaches 20 seconds or not, and when it is before 20 seconds, whether new fire receiving exists or not is checked, and a flickering control of the accumulation lamp 46 is executed. When it is discriminated that the accumulation time set to the timer T1 reaches 20 seconds, the accumulation lap 46 in a flickering state is switched to lighting, whether the second timer 2 reaches a set time T2=50 seconds or not is checked, and when it is before 50 seconds, whether new fire receiving exists or not is checked, and it is repeated until the tier reaches 50 seconds. In such a way, by counting the flickering time of the accumulation lamp 46 by, for instance, a stopwatch, etc., 20 seconds of the accumulation time of a heat sensor can be confirmed.

3. 发明专利

JPH01144195A FIRE ALARM DEVICE 失效
公开(公告)号：JPH01144195A
公开(公告)日：1989-06-06
申请号：JP30283387
申请日：1987-11-30
申请人： HOCHIKI CO
发明人： HOSHINA SEIICHI , ICHIKAWA MAKOTO , YAMAGUCHI TOSHIKI
IPC分类号： G08B17/00
摘要： PURPOSE:To improve the reliability of the title fire alarm device by automatically carrying out a maintenance/inspection control processing, and surely carrying out a fire receiving control processing such as a fire alarm for an audible signal due to an actual fire even during the maintenance and inspection. CONSTITUTION:Power source-cum-signal lines 2a and 2b are extended from a receiver 1 to a caution zone, one or plural fire sensors 3 are connected between the power source-cum-signal lines 2a and 2b, and the fire sensor 3 possesses a function to send the audible signal including maintenance/inspection information to the receiver 1 in a performance test at the time of the maintenance/inspection. When the maintenance/inspection information is included in the audible signal from the sensor 3 by the maintenance/inspection, a maintenance/inspection mode is automatically set, and the maintenance/inspection control processing is carried out. On the other hand, since the maintenance/inspection information cannot be discriminated from the audible signal due to the actual fire, the maintenance/inspection mode is forcibly released, the fire alarm by a zone sound and a main sound is issued in the same way as the ordinary fire, and even during the maintenance/inspection, the fire alarm is surely issued for the actual fire. Thus, the reliability of the fire alarm device can be improved.

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