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1. 发明专利

FI84530B 未知
公开(公告)号：FI84530B
公开(公告)日：1991-08-30
申请号：FI850873
申请日：1985-03-05
申请人： HOCHIKI CO
发明人： HONMA HIROSHI , NARUMIYA JUNICHI
IPC分类号： H02H1/06 , A62C37/36 , A62C37/50 , G01N21/27 , G01N21/53 , G08B17/10 , G08B17/103 , G08B29/24
摘要： A light emitting unit and a photo sensing unit are separately arranged to face with each other, and a pulse light is emitted from the light emitting unit at every constant period, and the photo sensing unit receives the pulse light attenuated by a smoke, thereby detecting a fire. When a power source is turned on, a microcomputer in the photo sensing unit stores the first photo sensing data as an initial photo sensing data in a memory. The initial photo sensing data is fixedly stored and held and is not erased due to a temporary cut off of the power source. The photo sensing data is converted to correction photo sensing data using a correction ratio to perform the fouling correction and the fire is discriminated on the basis of the correction photo sensing data. The correction ratio is corrected when the correction period reaches 50 minutes. A correction amount of a single correction ratio is suppressed to a microvalue. In correction of the correction ratio, it is increased or decreased by only a microvalue at every correction period until the photo sensing data coincides with the initial photo sensing data.

2. 发明专利

AU605807B2 SCATTERED-LIGHT SMOKE DETECTOR 未知
公开(公告)号：AU605807B2
公开(公告)日：1991-01-24
申请号：AU8251987
申请日：1987-12-14
申请人： HOCHIKI CO
发明人： SAWA HIROSHI , HONMA HIROSHI , KAWAI HIRONOBU , MIYABE ATSUSHI
IPC分类号： G08B17/10 , G08B17/107

3. 发明专利

NO875454L 未知
公开(公告)号：NO875454L
公开(公告)日：1988-06-27
申请号：NO875454
申请日：1987-12-28
申请人： HOCHIKI CO
发明人： SAWA HIROSHI , MIYABE ATSUSHI , KAWAI HIRONOBU , HONMA HIROSHI
IPC分类号： G08B17/10 , G08B17/107

4. 发明专利

FI875578A 未知
公开(公告)号：FI875578A
公开(公告)日：1988-06-27
申请号：FI875578
申请日：1987-12-17
申请人： HOCHIKI CO
发明人： SAWA HIROSHI , MIYABE ATSUSHI , KAWAI HIRONOBU , HONMA HIROSHI
IPC分类号： G08B17/10 , G08B17/107 , G08B

5. 发明专利

AU573700B2 SMOKE DETECTOR 未知
公开(公告)号：AU573700B2
公开(公告)日：1988-06-16
申请号：AU3899585
申请日：1985-02-20
申请人： HOCHIKI CO
发明人： KAJII SHIGERU , HONMA HIROSHI , NARUMIYA JUNICHI
IPC分类号： G01N21/59 , G08B13/00 , G08B13/183 , G08B17/10 , G08B17/103 , G08B29/00 , G08B29/04
摘要： A smoke detector comprising a light emitting section from which pulse light is radiated to a detection area with a predetermined period and a light receiving section which is disposed so as to be opposite to the light emitting section to receive the light for detecting a change caused in the detection area in the form of a change in photo-output level. The light receiving section has a monitor terminal for outputting a monitor signal corresponding to the photo-output level. When a measuring apparatus is externally connected to the monitor terminal, the supervision period is shortened as compared with the normal supervision period, so as to enable the monitor signal to be supervised substantially in real time, thereby facilitating an adjusting operation.

6. 发明专利

GB2154777B ALARM SYSTEM TO TRANSMIT DETECTION INFORMATION BY RADIO 未知
公开(公告)号：GB2154777B
公开(公告)日：1987-08-12
申请号：GB8502082
申请日：1985-01-28
申请人： HOCHIKI CO
发明人： SHIMA HIROSHI , HONMA HIROSHI
IPC分类号： G08B17/00 , G08B21/00 , G08B21/16 , G08B23/00 , G08B25/00 , G08B25/10 , G08B29/18
摘要： When a transmitter receives an abnormal detection signal from a leaked gas alarm or the like, the transmitter starts the transmitting operation and repeatedly transmits the detection information together with the address information by a radio wave for a constant transmitting operation time interval. A receiver is of the intermittent reception type whereby the receiving operation is performed at every constant idle time, thereby preventing a consumption of a power source of a battery. When the transmitting radio wave is received at a timing of the intermittent reception, the receiving operation is continued and an alarm signal is generated on the basis of the last information which is transmitted due to the single transmitting operation, thereby allowing an alarm representing the leakage of gas to be generated and closing a gas shut-off valve, or the like.

7. 发明专利

AU3945785A P.E. SMOKE SENSOR SENSITIVITY VARIATION 未知
公开(公告)号：AU3945785A
公开(公告)日：1985-09-12
申请号：AU3945785
申请日：1985-03-04
申请人： HOCHIKI CO
发明人： HONMA HIROSHI , NARUMIYA JUNICHI
IPC分类号： H02H1/06 , A62C37/36 , A62C37/50 , G01N21/27 , G01N21/53 , G08B17/10 , G08B17/103 , G08B29/24
摘要： A light emitting unit and a photo sensing unit are separately arranged to face with each other, and a pulse light is emitted from the light emitting unit at every constant period, and the photo sensing unit receives the pulse light attenuated by a smoke, thereby detecting a fire. When a power source is turned on, a microcomputer in the photo sensing unit stores the first photo sensing data as an initial photo sensing data in a memory. The initial photo sensing data is fixedly stored and held and is not erased due to a temporary cut off of the power source. The photo sensing data is converted to correction photo sensing data using a correction ratio to perform the fouling correction and the fire is discriminated on the basis of the correction photo sensing data. The correction ratio is corrected when the correction period reaches 50 minutes. A correction amount of a single correction ratio is suppressed to a microvalue. In correction of the correction ratio, it is increased or decreased by only a microvalue at every correction period until the photo sensing data coincides with the initial photo sensing data.

8. 发明专利

AT378616B 未知
公开(公告)号：AT378616B
公开(公告)日：1985-09-10
申请号：AT427780
申请日：1980-08-22
申请人： HOCHIKI CO
发明人： HONMA HIROSHI
IPC分类号： G01N21/59 , G01N21/27 , G08B17/10 , G08B17/103
摘要： In a photoelectric smoke sensor which produces a fire alarm signal when an amount of attenuation of received light exceeds a predetermined level due to smoke flowing into a space between light emitting and light receiving devices, the level of a receiving light signal from the light receiving device is converted by a converting level control signal. An initial value of the receiving light signal is converted into a digital quantity which is stored in a memory circuit. The digital content of the memory circuit is then converted into an analog quantity. The analog quantity is then compared with the level-converted receiving signal to produce a fire alarm signal. The analog quantity and the level-converted receiving signal are compared with each other at a predetermined period to correct the converting level control signal when there is a difference between the analog quantity and the level-converted receiving signal as a result of the comparison. With such a scheme, a change of an amount of received light due to dust or dirt of an optical system of the smoke sensor is automatically corrected. When the level correction reaches a limit, an alarm is issued for inspection and maintenance of the sensor.

9. 发明专利

NO850821L 未知
公开(公告)号：NO850821L
公开(公告)日：1985-09-06
申请号：NO850821
申请日：1985-02-28
申请人： HOCHIKI CO
发明人： HONMA HIROSHI , NARUMIYA JUNICHI
IPC分类号： H02H1/06 , A62C37/36 , A62C37/50 , G01N21/27 , G01N21/53 , G08B17/10 , G08B17/103 , G08B29/24 , G08B , G01N
摘要： A light emitting unit and a photo sensing unit are separately arranged to face with each other, and a pulse light is emitted from the light emitting unit at every constant period, and the photo sensing unit receives the pulse light attenuated by a smoke, thereby detecting a fire. When a power source is turned on, a microcomputer in the photo sensing unit stores the first photo sensing data as an initial photo sensing data in a memory. The initial photo sensing data is fixedly stored and held and is not erased due to a temporary cut off of the power source. The photo sensing data is converted to correction photo sensing data using a correction ratio to perform the fouling correction and the fire is discriminated on the basis of the correction photo sensing data. The correction ratio is corrected when the correction period reaches 50 minutes. A correction amount of a single correction ratio is suppressed to a microvalue. In correction of the correction ratio, it is increased or decreased by only a microvalue at every correction period until the photo sensing data coincides with the initial photo sensing data.

10. 发明专利

FI850873A0 未知
公开(公告)号：FI850873A0
公开(公告)日：1985-03-05
申请号：FI850873
申请日：1985-03-05
申请人： HOCHIKI CO
发明人： HONMA HIROSHI , NARUMIYA JUNICHI
IPC分类号： H02H1/06 , A62C37/36 , A62C37/50 , G01N21/27 , G01N21/53 , G08B17/10 , G08B17/103 , G08B29/24 , G08B
摘要： A light emitting unit and a photo sensing unit are separately arranged to face with each other, and a pulse light is emitted from the light emitting unit at every constant period, and the photo sensing unit receives the pulse light attenuated by a smoke, thereby detecting a fire. When a power source is turned on, a microcomputer in the photo sensing unit stores the first photo sensing data as an initial photo sensing data in a memory. The initial photo sensing data is fixedly stored and held and is not erased due to a temporary cut off of the power source. The photo sensing data is converted to correction photo sensing data using a correction ratio to perform the fouling correction and the fire is discriminated on the basis of the correction photo sensing data. The correction ratio is corrected when the correction period reaches 50 minutes. A correction amount of a single correction ratio is suppressed to a microvalue. In correction of the correction ratio, it is increased or decreased by only a microvalue at every correction period until the photo sensing data coincides with the initial photo sensing data.

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