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41. 发明专利

JP2003240619A FLOW MEASURING METHOD AND FLOW MEASURING DEVICE 审中-公开
公开(公告)号：JP2003240619A
公开(公告)日：2003-08-27
申请号：JP2002037442
申请日：2002-02-14
申请人： YAZAKI CORP , TOKYO GAS CO LTD
发明人： YAMAURA MICHIAKI , HARADA TOSHIHIRO , KONNO YOSHITO , KOBAYASHI MASATOMO , SAKAI KATSUTO , SETO MINORU , TASHIRO TAKESHI
IPC分类号： G01P5/10 , G01F1/696
摘要： PROBLEM TO BE SOLVED: To provide a flow measuring method capable of measuring a flow rate accurately even when a physical property value of fluid flowing in a passage is changed, and a flow measuring device performing the flow measuring method. SOLUTION: A flow operation means operates the flow rate based on a gas temperature or a sensor output which is a value based on the gas temperature acquired after elapse of a measuring time from start of heating by a heat source or cooling. The measuring time is determined in the range longer than the shortest time and shorter than the longest time among cross times TFG, TFH, TFI, TGH, TGI, THI corresponding to a plurality of cross points PFG, PFH, PFI, PGH, PGI, PHI. COPYRIGHT: (C)2003,JPO

42. 发明专利

JP2002122644A METER DEVICE 失效
公开(公告)号：JP2002122644A
公开(公告)日：2002-04-26
申请号：JP2000315433
申请日：2000-10-16
申请人： TOKYO GAS CO LTD , TOSHIBA CORP
发明人： NUKUI KAZUMITSU , SUZUKI MAMORU , KOMAKI MICHINORI , TASHIRO TAKESHI , UYAMA HIROTO , KON KAZUO , MAEDA IKUO , ISHINO HITOAKI , MORINAGA TAKESHI
IPC分类号： G01R31/36 , H01M10/48 , H04B17/00 , H04B17/18 , H04B17/19 , H04B17/29
摘要： PROBLEM TO BE SOLVED: To provide a meter device capable of minimizing power consumption for a malfunction detection of a built-in battery. SOLUTION: Transistors 5 and 9 are turned on only in an initial stage and a latter stage of usage where a probability of a malfunction occurring tin the battery 1 is high and the malfunction is detected by applying a load to the battery 1 by a resistance 7 and measuring a voltage of the battery 1 by a voltmeter 3. In an intermediate stage where the probability of the malfunction is low, the consumption of power is suppressed by lowering a frequency of feeding a current to the resistance 7.

43. 发明专利

JP2002122455A GAS METER 失效
公开(公告)号：JP2002122455A
公开(公告)日：2002-04-26
申请号：JP2000312326
申请日：2000-10-12
申请人： TOKYO GAS CO LTD , TOSHIBA CORP
发明人： NUKUI KAZUMITSU , SUZUKI MAMORU , KOMAKI MICHINORI , TASHIRO TAKESHI , KON KAZUO , UYAMA HIROTO , ISHINO HITOAKI , MAEDA IKUO , MORINAGA TAKESHI
IPC分类号： G01F3/22 , G01F1/00 , G01F15/00
摘要： PROBLEM TO BE SOLVED: To facilitate the soldering work and dispense with a lead wire. SOLUTION: A soldering part 29 and a terminal mount hole 24 formed of a terminal insert opening part 31 having a large opening area are provided on the control board 13 of a gas meter body 17. In soldering, the terminal insert opening part 31 is inserted to each terminal part 23, the control board 13 is then moved to oppose each terminal part 23 to the soldering part 29, and the soldering is directly performed, whereby the lead wire is omitted.

44. 发明专利

JP2002094594A INTERFACE CIRCUIT 失效
公开(公告)号：JP2002094594A
公开(公告)日：2002-03-29
申请号：JP2000276548
申请日：2000-09-12
申请人： TOKYO GAS CO LTD , TOSHIBA CORP
发明人： NUKUI KAZUMITSU , SUZUKI MAMORU , KOMAKI MICHINORI , TASHIRO TAKESHI , UYAMA HIROTO , KON KAZUO , ISHINO HITOAKI , MAEDA IKUO , MORINAGA TAKESHI
IPC分类号： H03K17/78 , H04L25/02 , H04L29/00 , H04L29/08 , H04M11/00 , H04Q9/00
摘要： PROBLEM TO BE SOLVED: To provide an interface circuit with power consumption suppressed low by feeding current suitable to a communication speed. SOLUTION: A terminal side 1 is provided with a transistor 12 and a resistor 11 for feeding current quantity corresponding to a 1st communication speed, and a transistor 16 and a resistor 15, and an NCU side 5 is provided with a transistor 52 and a resistor 51, and a transistor 56 and a resistor 55. The terminal side 1 is also provided with a transistor 14 and a resistor 13 for feeding current quantity corresponding to a 2nd communication speed, and a transistor 18 and a resistor 17, and the NCU side 5 is provided with a transistor 54 and a resistor 53, and a transistor 58 and a resistor 57. The current quantity corresponding to the communication speeds is fed to photocouplers 61 and 71 by switching a transistor and a resistor to be used in accordance with the communication speeds.

45. 发明专利

JP2002090198A GAS METER 失效
公开(公告)号：JP2002090198A
公开(公告)日：2002-03-27
申请号：JP2000280894
申请日：2000-09-14
申请人： TOKYO GAS CO LTD , TOSHIBA CORP
发明人： NUKUI KAZUMITSU , SUZUKI MAMORU , KOMAKI MICHINORI , TASHIRO TAKESHI , ISHINO HITOAKI , KON KAZUO , UYAMA HIROTO , MAEDA IKUO , MORINAGA TAKESHI
IPC分类号： G01F3/22 , G01F1/00
摘要： PROBLEM TO BE SOLVED: To provide a gas meter eliminating a flow rate conversion processing at a controller side by mounting the function of the flow rate conversion processing on a flow rate sensor itself, and allowing connection without changing the processing in the controller even with the flow sensor having a different gas flow sensing element. SOLUTION: At the sensor side, the gas flow sensing element senses the gas flow to output a pulse train signal; an actual flow rate conversion processing part counts the number of pulses of the pulse train signal in a certain period of time; a corresponding actual flow rate value is obtained with reference to the conversion data in a conversion data storing part, and is outputted to the gas meter controller. At the gas meter controller side, the actual flow rate value outputted by the flow sensor is integrated and a gas metering value is calculated and indicated. When a flow rate sensor is newly mounted or exchanged, a setting device is connected to a communication processing part before or after connection with the gas meter controller, and the conversion data corresponding to the gas flow sensing element of the flow rate sensor is registered.

46. 发明专利

JP2002082631A ALPHABET DISPLAY DEVICE FOR GAS METER 失效
公开(公告)号：JP2002082631A
公开(公告)日：2002-03-22
申请号：JP2000273900
申请日：2000-09-08
申请人： TOKYO GAS CO LTD , TOSHIBA CORP
发明人： NUKUI KAZUMITSU , SUZUKI MAMORU , KOMAKI MICHINORI , TASHIRO TAKESHI , UYAMA HIROTO , KON KAZUO , MAEDA IKUO , ISHINO HITOAKI , MORINAGA TAKESHI
IPC分类号： G01D7/00 , G09F9/30
摘要： PROBLEM TO BE SOLVED: To make it easier to decide alphabet characters while minimizing an increase in the number of segments. SOLUTION: An interpolation segment 1 is provided between segments positioned at the center part 3a of 14 segments and an interpolation segment 2 is provided between segments positioned at the right-end center part 3b similarly. Further, the tips of the segments which are adjacent to the interpolation segments 1 and 2 are made flat. The interpolation segment 1 is made to illuminate when an alphabet character whose line passes the center part 3a is displayed. The interpolation segment 2 is made to illuminate when an alphabet character whose line passes the right-end center part 3b like 'A' is displayed and made not to illuminate when an alphabet character whose line does not pass the right-end center part like 'B' is displayed.

47. 发明专利

JP2002078031A INTERFACE CIRCUIT 失效
公开(公告)号：JP2002078031A
公开(公告)日：2002-03-15
申请号：JP2000256001
申请日：2000-08-25
申请人： TOKYO GAS CO LTD , TOSHIBA CORP
发明人： NUKUI KAZUMITSU , SUZUKI MAMORU , KOMAKI MICHINORI , TASHIRO TAKESHI , UYAMA HIROTO , KON KAZUO , MAEDA IKUO , MORINAGA TAKESHI , ISHINO HITOAKI
IPC分类号： H03K17/78 , H04L25/02 , H04Q9/00
摘要： PROBLEM TO BE SOLVED: To provide an interface circuit that can reduce the power consumption even when a communication speed is increased. SOLUTION: In the case of transmission from a terminal 1, a control section (not shown) of the terminal 1 switches a switching transistor(TR) 21 to a position of transmission, a communication signal (transmission) is given to one input terminal of an AND circuit 13, a pulse from a pulse generator 11 is given to the other input terminal of the AND circuit 13 which modulates the communication signal (transmission) with the pulse signal, a switching TR 17 is turned on/off corresponding to the pulse signal, a current flows in a direction of It in response to the ON/OFF operation to supply the current to a pulse demodulator 43 of a communication unit 3 via a photocoupler 53. The pulse demodulator 43 demodulates the original signal.

48. 发明专利

JP2001281018A FLOW-RATE MEASURING DEVICE AND GAS METER 失效
公开(公告)号：JP2001281018A
公开(公告)日：2001-10-10
申请号：JP2000099500
申请日：2000-03-31
申请人： TOKYO GAS CO LTD
发明人： NUKUI KAZUMITSU , KOMAKI MICHINORI , TASHIRO TAKESHI
IPC分类号： G01F1/00 , G01F3/22 , G01F7/00
摘要： PROBLEM TO BE SOLVED: To provide a flow-rate measuring device, such as a gas meter in which an overlap region is set and which eliminates drop in its measuring accuracy or the generation of the mixture of a noise or the like, even when a pulsating flow, a flow-rate change or the like is generated in a fluid to be measured. SOLUTION: A measurement control part 4 changes the upper limit and the lower limit of the overlap region, so that they become the upper limit or higher or the lower limit or lower than the pulsating flow or the flow-rate change, when the upper limit (indicated as Wh in the figure) of the pulsating flow or the flow-rate change is at the upper limit of lower than the practically measurable region of a low flow-rate sensor 1, and when the lower limit of the pulsating flow or the flow-rate change is at the lower limit or higher than the practically measurable region of a high flow-rate sensor 2. When it is detected by a pulsating flow and change detection part 3 that the pulsating flow, the flow-rate change or the like is not generated, a measurement control rule itself is changed over, in such a way that a flow rate is measured on the basis of the measurement control rule, which is set in advance so as to be executed inside the overlapped region.

49. 发明专利

JP2001174297A FLOW RATE MEASURING METHOD AND DEVICE 失效
公开(公告)号：JP2001174297A
公开(公告)日：2001-06-29
申请号：JP36098099
申请日：1999-12-20
申请人： TOKYO GAS CO LTD
发明人： NUKUI KAZUMITSU , SUZUKI MAMORU , KOMAKI MICHINORI , KOBAYASHI KENCHI , TASHIRO TAKESHI , YUASA KENICHIRO
IPC分类号： G01F1/00 , G01F1/72 , G01F3/22 , G01F15/04
摘要： PROBLEM TO BE SOLVED: To provide a gas flow rate measuring method and measuring device, capable of obtaining exact flow rate without mixing errors caused by a pulsation, even if it is caused in a gas flow and causing the increase of consumption power. SOLUTION: In a flow rate measuring device such as a gas flowmeter, gas pressure, in which consumption power is smaller than is necessary in measuring gas flow velocity, is often measured using a gas pressure measuring device 200, without having to increase the consumption power. Time differential P' per unit time of pressure value P in pulsation caused in the gas flow is obtained, and based on the pressure P' the error δv contained in the gas flow velocity v is calculated. With a measured error correction circuit 300, an error δv is added to or subtracted from a gas flow velocity v to correct the error in the gas flow velocity value v, and eventually a gas flow rate value with a small error is obtained.

50. 发明专利

JP2000088353A DETECTOR FOR CLOGGING OF FILTER OF HOT AIR HEATER 失效
公开(公告)号：JP2000088353A
公开(公告)日：2000-03-31
申请号：JP25513398
申请日：1998-09-09
申请人： TOKYO GAS CO LTD
发明人： NISHINO MITSUSHIGE , NUKUI KAZUMITSU , TASHIRO TAKESHI
IPC分类号： F04D17/04 , F04D29/70 , F24H3/04
摘要： PROBLEM TO BE SOLVED: To provide a detector for clogging of a filter of a hot air heater capable of precisely and rapidly detecting the clogging of the filter. SOLUTION: A differential pressure sensor 41 is fixed to the inside of a filter 21 adjacently to the filter 21. One vent hole 41a of the differential pressure sensor 41 communicates with outside air and the other vent hole 41b is opened to the inside of a gas fan heater. When the filter is clogged, differential pressure higher than that during an ordinary operation is generated between the inside and the outside of the gas fan heater. When the differential pressure exceeds a set value, it is decided that the filter is clogged to close a first shut-off solenoid valve and a second shut-off solenoid valve and stop the combustion of a main burner. The relation between the set value and the clogging is experimentally previously measured, so that the set value can be properly set.

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