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1. 发明专利

JPH1019630A GAS METER 失效
公开(公告)号：JPH1019630A
公开(公告)日：1998-01-23
申请号：JP17531096
申请日：1996-07-05
申请人： TOKYO GAS CO LTD , AICHI TOKEI DENKI KK , MATSUSHITA ELECTRIC IND CO LTD , TOSHIBA CORP , FUJI ELECTRIC CO LTD
发明人： NUKUI KAZUMITSU , SAKAI KATSUTO , SATOU SOUBUN , SATO SHINICHI , SAITO MITSURU , KATONO TOMIO , MATSUMOTO TAKAYUKI , MASUDA HIDEO , FUKUSHIMA OKITO , NUMAGAMI TAKESHI
IPC分类号： G01F3/22 , G01F1/00
摘要： PROBLEM TO BE SOLVED: To prevent the occurrence of a gas accident by regularly monitoring the presence of abnormality of a microcomputer by a watch dog timer, automatically closing a solenoid valve to interrupt the supply of gas when an abnormality occurs. SOLUTION: A watch dog timer 7 has a counter for counting the elapsed time, and clears the count value of the counter to zero every receipt of a watch dog timer reset signal outputted at a fixed period from a microcomputer 1. When the counted elapsed time reaches a fixed time longer than the fixed period, a second valve closing signal is outputted. Since the reset signal is outputted every fixed period to clear the content of the counter when the computer 1 is normally operated, the second valve closing signal is never outputted. When the computer 1 becomes abnormal, a first battery 2 is abnormally worn, and neither valve closing signal nor reset signal is outputted. Then, the second valve closing signal is outputted from the timer 7, and a solenoid valve 3 is automatically closed to interrupt the gas supply.

2. 发明专利

JPH1019629A GAS METER 失效
公开(公告)号：JPH1019629A
公开(公告)日：1998-01-23
申请号：JP17530996
申请日：1996-07-05
申请人： TOKYO GAS CO LTD , AICHI TOKEI DENKI KK , MATSUSHITA ELECTRIC IND CO LTD , TOSHIBA CORP , FUJI ELECTRIC CO LTD
发明人： NUKUI KAZUMITSU , SAKAI KATSUTO , SATOU SOUBUN , SATO SHINICHI , SAITO MITSURU , KATONO TOMIO , MATSUMOTO TAKAYUKI , MASUDA HIDEO , NUMAGAMI TAKESHI , FUKUSHIMA OKITO
IPC分类号： G01F3/22 , G01F1/00
摘要： PROBLEM TO BE SOLVED: To eliminate a special dummy load resistor and a special circuit for applying a test current to the special resistor for determining valve driving ability. SOLUTION: As a solenoid valve for shutoff and reset of gas, a self retaining type of opening-closing valve 2 is used which may be electrically opened and closed. To determine the valve driving ability of a battery 4, first, a microcomputer 1 determines if the opening-closing valve 2 is open or closed according to the state of signal output to a valve control circuit 5. If opened, an open valve signal is issued from an output port 1c to apply a current to the coil 2a of the opening-closing valve 2 in the direction of the solid line arrow A. The voltage of the battery 4 this time is detected with a voltage detection circuit 7. If closed, a closed valve signal is issued from the output port 1d to apply a current to the coil 2a in the direction of the broken line arrow B. The voltage of the battery 4 at this time is measured with the voltage detection circuit 7.

3. 发明专利

JPH10110946A GAS SHIELDING DEVICE 失效
公开(公告)号：JPH10110946A
公开(公告)日：1998-04-28
申请号：JP26700196
申请日：1996-10-08
申请人： MATSUSHITA ELECTRIC IND CO LTD , TOKYO GAS CO LTD , TOSHIBA CORP , FUJI ELECTRIC CO LTD , AICHI TOKEI DENKI KK
发明人： NAKAMURA HIROSUMI , MURAKAMI HIROKUNI , UBUKAWA TOYOMIZU , NUKUI KAZUMITSU , SAKAI KATSUTO , KANEKO ISAO , SATOU SOUBUN , SATO SHINICHI , FUKUSHIMA OKITO , NUMAGAMI TAKESHI , MASUDA HIDEO , SAITO MITSURU , KATONO TOMIO
IPC分类号： F23N5/24
摘要： PROBLEM TO BE SOLVED: To enable an inspection about a residual amount of power supply of battery cell for driving a shield valve of a gas shielding device to be positively carried out. SOLUTION: A non-load voltage of a battery cell power supply 10 is measured with an instruction from an inspection signal output section 2. When this non-load voltage is less than a predetermined value, a residual amount measuring section 5 may measure such a voltage as one under a state in which a pseudo load 9 is connected to the battery cell power supply 10. In the case that the voltage under this loaded condition is less than a discriminated value, a residual amount abnormal signal is outputted and a battery cell consumption alarm section 7 may execute either an alarm display or an alarm informing operation.

4. 发明专利

JPH1055292A ABNORMAL STATE DETECTION CIRCUIT FOR MICROCOMPUTER 失效
公开(公告)号：JPH1055292A
公开(公告)日：1998-02-24
申请号：JP21263296
申请日：1996-08-12
申请人： TOKYO GAS CO LTD , TOSHIBA CORP , AICHI TOKEI DENKI KK , MATSUSHITA ELECTRIC IND CO LTD , FUJI ELECTRIC CO LTD
发明人： NUKUI KAZUMITSU , SAKAI KATSUTO , SATOU SOUBUN , SATO SHINICHI , MASUDA HIDEO , KATONO TOMIO , SAITO MITSURU , MURAKAMI HIROKUNI , NAKAMURA HIROSUMI , FUKUSHIMA OKITO , NUMAGAMI TAKESHI
IPC分类号： G06F11/30 , G05B19/048 , G05B19/05 , G05B23/02
摘要： PROBLEM TO BE SOLVED: To detect abnormality such as the runaway of the software of a microcomputer or the oscillation stoppage of an oscillation circuit or the like by outputting an identification signal different from a prescribed identification signal in the case that one of the output signals of first and second reception circuits is not prescribed logic. SOLUTION: Pulse signals originated from the output port P1 of the microcomputer are directly inputted to the first reception circuit (circuit A11) and inverted in an inverter 3 and inputted to the second reception circuit (circuit B11). Then, when the microcomputer 111 performs a normal operation, the output signals B1 and C1 of the circuits A11 and B11 both become a high level and the high level signals are inputted to a NAND circuit 9. At the time, the output of the NAND circuit 9 becomes a low level. Inversely, when the microcomputer 111 performs an abnormal operation, the output signal B1 of the circuit A11 for instance becomes the high level and the output signal C1 of the circuit B11 becomes the low level. Both signals B1 and C1 are inputted to the NAND circuit 9. At the time, the output of the NAND circuit 9 becomes the high level and the identification signal is different.

5. 发明专利

JPH10103600A GAS SHUTTING-OFF CONTROLLER 失效
公开(公告)号：JPH10103600A
公开(公告)日：1998-04-21
申请号：JP25665096
申请日：1996-09-27
申请人： MATSUSHITA ELECTRIC IND CO LTD , TOKYO GAS CO LTD , AICHI TOKEI DENKI KK , TOSHIBA CORP , FUJI ELECTRIC CO LTD
发明人： MURAKAMI HIROKUNI , OKAMATSU HIROSUMI , MATSUMOTO TAKAYUKI , UBUKAWA TOYOMIZU , NUKUI KAZUMITSU , FUJISAWA KAZUYA , SATOU SOUBUN , SATO SHINICHI , SAITO MITSURU , KATONO TOMIO , MASUDA HIDEO , KAMASHITA TAKESHI , FUKUSHIMA OKITO , NUMAGAMI TAKESHI
IPC分类号： G01F3/22 , F17D5/02
摘要： PROBLEM TO BE SOLVED: To use a first battery until its limit by providing a structure composed of two power sources, a first battery for opening/closing a gas shutting-off solenoid valve and a second battery for control, and providing an auxiliary closing means for supplying a solenoid valve closing current from the second battery when a voltage reduction occurs in the first battery. SOLUTION: A voltage reduction detecting means 6 for monitoring a first battery voltage for valve driving is made active when a control means 4 outputs a voltage detection permitting signal BE, determines a voltage reduction if a battery voltage is lower than the operation ensuring voltage of a solenoid valve 1 and then sends a voltage reduction signal BL to the control means 4. The PNP transistor 7a of an auxiliary closing means 7 operated by the voltage reduction signal BL is controlled by the auxiliary closing signal SC of the control means 4. The collector of the PNP transistor 7a of the auxiliary closing means 7 is connected to the collector of the PNP transistor 7a of the auxiliary closing means 7, an emitter is connected to a second battery 5 and an exciting current of ic is conducted from the battery 5 to the coil 1a of the solenoid valve 1.

6. 发明专利

JP2001283367A GAS-RELATED EQUIPMENT USING RADIO WAVE AND WIDE AREA INFORMATION COMMUNICATION SYSTEM 失效
公开(公告)号：JP2001283367A
公开(公告)日：2001-10-12
申请号：JP2000094454
申请日：2000-03-30
申请人： TOKYO GAS CO LTD , FUJI ELECTRIC CO LTD
发明人： ISHIKAWA KIYOHISA , FUJIWARA JUN , YUZAWA TAKAHIRO , HATAKEUCHI TAKAAKI , FUKUSHIMA OKITO
IPC分类号： G01F1/00 , G01F3/22 , G01F15/06 , G08C17/00 , H04B7/24 , H04M11/00 , H04Q9/00
摘要： PROBLEM TO BE SOLVED: To provide an information communication system capable of reducing the cost of the whole system, preventing the generation of a radio wave dead zone by determining the set position of a radio equipment with the degree of freedom and making it unnecessary to apply/acquire a radio wave of private frequency. SOLUTION: A wide area information communication system is provided with plural gas meters 4 for measuring the consumption of fuel gas, radio equipment 6 electrically connected to respective gas meters 4, radio equipment 7 for wirelessly communicating with each radio equipment 6, radio equipment 8 having a repeating function for autonomously selecting a repeating destination unit and electrically connected to respective radio equipment 7, and a management computer 5 electrically connected to a radio equipment 8z having the same function as the radio equipments 8. Any of the radio equipments 8 can be communicated with all other radio equipment 8 directly or through the repeating functions of one or more other radio equipment 8. The management computer 5 inquires a gas-reading value (gas consumption) of an optional gas meter 4 through the communication line in order to collect the gas- reading value of the gas meter 4, which answers the measured gas-reading value to the inquiry through the communication line.

7. 发明专利

JPS547141A EARTHING DETECTOR 失效
公开(公告)号：JPS547141A
公开(公告)日：1979-01-19
申请号：JP7152277
申请日：1977-06-16
申请人： FUJI ELECTRIC CO LTD
发明人： FUKUSHIMA OKITO , IDE YASUTOSHI
IPC分类号： H02H3/33 , H02H3/16
摘要： PURPOSE:To provide the operating characteristic for time delay for earthing an apparatus by connecting through a time delaying circuit having overprotective circuit and double voltage rectifier circuit, a contact exciting coil to the secondary winding of zero-phase current transformer provided in the earthing detector utilizing the zero-phase current transformer for actuating a leakage breaker.

8. 发明专利

JPS53104830A LEAKAGE CIRCUIT BREAKER 失效
公开(公告)号：JPS53104830A
公开(公告)日：1978-09-12
申请号：JP1973177
申请日：1977-02-24
申请人： FUJI ELECTRIC CO LTD
发明人： FUKUSHIMA OKITO , OKANO YOSHIROU
IPC分类号： H02H3/347 , H02H3/16
摘要： PURPOSE:To eliminate erroneous function due to variation of source voltage, by enabling interruption through opening function of normal close contact in outer operational circuit without employing under voltage tripping coil.

9. 发明专利

JPH08249565A GAS LEAK ALARM 失效
公开(公告)号：JPH08249565A
公开(公告)日：1996-09-27
申请号：JP5067695
申请日：1995-03-10
申请人： FUJI ELECTRIC CO LTD
发明人： KAWASAKI KIKUO , FUKUSHIMA OKITO
IPC分类号： G01M3/00 , G08B21/00 , G08B21/16
摘要： PURPOSE: To provide a multifunctional gas leak alarm which can also deal with the terminal equipment of an alarm system with a simplified hardware. CONSTITUTION: This device is constituted by combining a gas detection part 1 for outputting a signal while reacting to gas, warning part 5, microcomputer 8 as a control means provided with a non-volatile memory 9, communication circuit 10 for exchanging data with an external device such as the centralized monitor panel of the alarm system, and power source circuit combining a constant voltage circuit 7 and a constant current circuit 11. Then, respective functions such as the reading of a sensor signal output with a reference gas concentration, storage into a memory, the setting of a warning operation level based on that memory value, the judgement and output of necessity for warning operation and centralized monitor with the alarm system by a communication transmission system are executed on the program of the microcomputer 8 in the manner of software.

10. 发明专利

JP2001307245A MULTIPLE TYPE ALARM 失效
公开(公告)号：JP2001307245A
公开(公告)日：2001-11-02
申请号：JP2000116396
申请日：2000-04-18
申请人： FUJI ELECTRIC CO LTD
发明人： HIRAYAMA NORIYUKI , WATANABE TADASHI , HATAKEYAMA KIMIO , FUKUSHIMA OKITO
IPC分类号： G08B21/14 , G08B17/00 , G08B21/16 , G08B29/12
摘要： PROBLEM TO BE SOLVED: To make possible simply and easily check an alarm after setting without using special instruments. SOLUTION: Dedicated instruments are not needed and the troubles for checking alarms are omitted. This alarm has a gas leakage sensor 11, an incomplete combustion sensor 12, fire sensor 13, and alarm part 14, and a operation- checking part 17 is provided on the multiple type alarm which can alert and display the gas leakage, the incomplete combustion, and the fire individually or with them combined. This operation-checking part 17 is operated from outside and the dedicated instruments for inspection are needed, by conducting the prescribed alarm, display operation switching from inside to outside.

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