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61. 发明专利

JP2001183198A METHOD AND APPARATUS FOR MEASUREMENT OF FLOW RATE AS WELL AS GAS METER 失效
公开(公告)号：JP2001183198A
公开(公告)日：2001-07-06
申请号：JP37043399
申请日：1999-12-27
申请人： TOKYO GAS CO LTD , MATSUSHITA ELECTRIC IND CO LTD
发明人： SUZUKI MAMORU , KATO HIDEO , NAGAOKA YUKIO , ABE HIDEJI , UMEKAGE YASUHIRO
IPC分类号： G01F3/22 , G01F1/66 , G01F1/72
摘要： PROBLEM TO BE SOLVED: To reduce a power consumption amount without increasing it, to eliminate that a noise is mixed during a measurement due to the bad influence of reflected waves and to enhance the measuring accuracy of a flow rate in a method and an apparatus for the measurement of the flow rate such as a measuring method for the flow rate of a gas and a gas meter. SOLUTION: A drive circuit 2 sets a long time interval Td situated between respective propagation duties Tp of ultrasonic waves 7. The length of one measuring cycle T is set nearly at an integral multiple or longer of the length of one cycle Tδ of pulsations generated in the gas 6. A power supply circuit 4 temporarily stops the supply of power-supply electric power Vdd for drive to ultrasonic oscillatros/receivers 1a, 1b and the drive circuit 2 as well as a flow-rate measuring circuit 3. Thereby, a power consumption can be reduced.

62. 发明专利

JP2007147430A Gas shut-off device 有权
标题翻译：气体切断装置
公开(公告)号：JP2007147430A
公开(公告)日：2007-06-14
申请号：JP2005341647
申请日：2005-11-28
申请人： Matsushita Electric Ind Co Ltd , Tokyo Gas Co Ltd , 東京瓦斯株式会社 , 松下電器産業株式会社
发明人： OTANI TAKAHISA , UEKI KOICHI , ASANO KAZUTAKA , NAKABAYASHI YUJI , FUJIMOTO TATSUO , SUZUKI MAMORU , YUASA KENICHIRO , NAGAI NOZOMI , KONO SACHIKO
IPC分类号： G01F3/22
摘要： PROBLEM TO BE SOLVED: To avoid sensor anomaly determination in a temporary state out of assumed measurement conditions.
SOLUTION: A gas shut-off device includes a flow detection part 11, a flow calculation part 12, an anomalous flow determination part 13, a valve drive part 14, a valve 15, a return input part 16, an anomaly bypass part 17, and a sensor anomaly determination part 18. The bypass part 17 outputs a bypass signal F for an arbitrary period of time when receiving a valve closing signal C of the determination part 13 or a valve opening signal E of the input part 16 while the determination part 18 stops anomaly determination when finding the bypass signal F, thus sensor anomaly determination can be avoided in the temporary state out of the assumed measurement conditions.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了避免在假定的测量条件下临时状态下的传感器异常确定。气体切断装置包括流量检测部11，流量计算部12，异常流量判定部13，阀驱动部14，阀15，返回输入部16，异常旁路部17以及传感器异常判定部18.旁路部17在接收到判定部13的关闭信号C或输入部16的开阀信号E的同时，输出旁路信号F任意一段时间当确定部分18找到旁路信号F时停止异常确定，因此在假定的测量条件之外的临时状态下可以避免传感器异常确定。版权所有（C）2007，JPO＆INPIT

63. 发明专利

JP2003254808A FLOW RATE MEASURING APPARATUS 审中-公开
公开(公告)号：JP2003254808A
公开(公告)日：2003-09-10
申请号：JP2002057429
申请日：2002-03-04
申请人： MATSUSHITA ELECTRIC IND CO LTD , TOKYO GAS CO LTD
发明人： NAGAOKA YUKIO , ABE HIDEJI , NIIMURA NORIO , SUZUKI MAMORU , YUASA KENICHIRO
IPC分类号： G01F1/72 , G01F1/66
摘要： PROBLEM TO BE SOLVED: To provide a flow rate measuring apparatus of low power consumption in which measurement precision is maintained and improved by setting a measurement period to minimum one which is not affected by flow-rate fluctuation according to the length of a fluctuation cycle in flow rate. SOLUTION: Based on the signal of a flow detecting means 2 which detects flow state of a fluid in a flow path 1, a flow-rate measuring means 10 calculates an average flow rate during a prescribed measurement period. A cycle detecting means 7 detects fluctuation cycle of flow. A measurement period changing means 11 sets a measurement period to be almost N (integer) multiple of the fluctuation cycle detected by the cycle detecting means 7 and changes the integer N according to the fluctuation cycle. COPYRIGHT: (C)2003,JPO

64. 发明专利

JP2001255186A FLOW RATE MEASURING SYSTEM 失效
公开(公告)号：JP2001255186A
公开(公告)日：2001-09-21
申请号：JP2000064624
申请日：2000-03-09
申请人： MATSUSHITA ELECTRIC IND CO LTD , TOKYO GAS CO LTD
发明人： NAGAOKA YUKIO , ABE HIDEJI , UMEKAGE YASUHIRO , FUJII YASUSHI , NUKUI KAZUMITSU , SUZUKI MAMORU , YUASA KENICHIRO
IPC分类号： G01F1/00 , G01F1/66 , G01F15/04
摘要： PROBLEM TO BE SOLVED: To provide a flow rate measuring, system capable of holding a measuring accuracy by accurately measuring the flow rate of a fluid, even if the type of a gas is changed. SOLUTION: The flow rate measuring system comprises transmitting and receiving means 5, 6 for transmitting and receiving sound waves to and from a fluid in a channel 7, a flow rate detecting means 8 for measuring a propagation time of the wave in the fluid, a flow coefficient setting means 9 for deciding the flow coefficient, a flow rate calculating means 10 for calculating the flow rate based on the flow coefficient and the propagation time, a temperature- detecting means 11 for measuring the temperature of the fluid, and a coefficient correcting means 12 for changing the flow coefficient of the means 9, based on the measured temperature and the propagation time.

65. 发明专利

JP2001255184A FLOW RATE MEASURING SYSTEM 失效
公开(公告)号：JP2001255184A
公开(公告)日：2001-09-21
申请号：JP2000064622
申请日：2000-03-09
申请人： MATSUSHITA ELECTRIC IND CO LTD , TOKYO GAS CO LTD
发明人： NAGAOKA YUKIO , ABE HIDEJI , UMEKAGE YASUHIRO , NIIMURA NORIO , NUKUI KAZUMITSU , SUZUKI MAMORU , YUASA KENICHIRO
IPC分类号： G01F1/66
摘要： PROBLEM TO BE SOLVED: To provide a flow rate measuring system capable of accurately measuring a flow rate of a fluid, when pressure is changed by low power consumption. SOLUTION: The flow rate measuring system comprises a flow rate measuring means 9 for measuring the flow rate of the fluid, a change detecting means 18 for detecting a change state of the fluid, and a change detection control means 19 for starting a measurement of the means 9 at a time when measurement of the flow rate can be made for a fixed period after starting from the starting point with a prescribed position of a waveform of a changed value detected by the means 18 set as the starting point. In this case, the means 19 intermittently drives the means 18, compares the changed value with a reference value previously set by a change comparison means 19A, increases a driving frequency of the means 18 or continuously drives the means 18, when the change value exceeds a level of a first set value, and starts measuring of the means 9, when the change value exceeds a level of a second set value.

66. 发明专利

JP2001228003A FLOW RATE MEASURING APPARATUS 失效
公开(公告)号：JP2001228003A
公开(公告)日：2001-08-24
申请号：JP2000038909
申请日：2000-02-17
申请人： MATSUSHITA ELECTRIC IND CO LTD , TOKYO GAS CO LTD
发明人： NAGAOKA YUKIO , ABE HIDEJI , UMEKAGE YASUHIRO , SUZUKI MAMORU , KATO HIDEO , YUASA KENICHIRO
IPC分类号： G01F1/66
摘要： PROBLEM TO BE SOLVED: To achieve accurate measurement of a flow rate in a short time, even when the flow rate changes. SOLUTION: A flow rate detection means 9 is provided for outputting a detection signal according to the flow rate of a fluid, a cycle detection means 18 for detecting the cycle of changes in the flow rate of the fluid, a waveform processing means 19 to filter a signal of the cycle detection means 18 with a different frequency, a measurement control means 21 for controlling the measurement by the flow rate detection means 9, according to a signal of the waveform processing means 19 and a flow rate computing means 17 to compute the flow rate from an output signal of the flow rate detection means 9. Measurement is performed, to match the frequency of the change in the flow rate, thereby enabling accurate measurement of the flow rate in a short time even with respect to various changes.

67. 发明专利

JPH1079529A OPTICALLY COUPLED ADAPTOR 失效
公开(公告)号：JPH1079529A
公开(公告)日：1998-03-24
申请号：JP23381296
申请日：1996-09-04
申请人： TOKYO GAS CO LTD , FUJI ELECTRIC CO LTD
发明人： NUKUI KAZUMITSU , SAKAI KATSUTO , SUZUKI MAMORU , UNO NAGATAKE , ISHIKAWA KIYOHISA , SATOU SOUMON , SUZUKI TAKAHIRO , FUKUDA TOKUYUKI
IPC分类号： H01L31/12
摘要： PROBLEM TO BE SOLVED: To prevent a device, etc., from breakage and improve the reliability thereof by making it difficult to be affected by lightning surge in an automatic metering system using a telephone line. SOLUTION: An optical adaptor 5 is interposed between a terminal network controller 3, connecting with a center automatic metering device 1 through a telephone line and a meter 4 in such a state that two pairs of light-emitting/ receiving elements are arranged at a specified space distance, and creepage distance apart from each other within a case, in order to optically connect forward and backward signals with each other between the device 1 and the meter 4. Thus, the lightning resistivoty and reliability can be improved.

68. 发明专利

JP2008014840A Ultrasonic flowmeter 审中-公开
标题翻译：超声波流量计
公开(公告)号：JP2008014840A
公开(公告)日：2008-01-24
申请号：JP2006187175
申请日：2006-07-06
申请人： Aichi Tokei Denki Co Ltd , Toho Gas Co Ltd , Tokyo Gas Co Ltd , Toshiba Corp , 愛知時計電機株式会社 , 東京瓦斯株式会社 , 東邦瓦斯株式会社 , 株式会社東芝
发明人： HASEBE SHINYA , SAMEDA YOSHITOMI , TAKAHASHI YUKIO , FUJIMOTO TATSUO , SUZUKI MAMORU , KONO SACHIKO , NAGAI NOZOMI , YUASA KENICHIRO , HIROYAMA TORU , ISHIDA HIROSHI , NABESHIMA NORIYUKI , HORI ITSURO
IPC分类号： G01F1/66
摘要： PROBLEM TO BE SOLVED: To provide an ultrasonic flowmeter capable of heightening measurement accuracy of a flow rate by removing a measurement error. SOLUTION: In this ultrasonic flowmeter, a pair of ultrasonic vibrators 2a, 2b are provided at a fixed distance on the upstream side and on the downstream side of a channel, and an ultrasonic wave is transmitted/received by switching the transmission/reception direction between the forward direction and the reverse direction, and a flow rate is determined based on an arrival time of the ultrasonic wave in each direction. The flowmeter includes a transmission circuit 4 for generating a transmission signal to be transmitted to one ultrasonic vibrator, a reception detection circuit 5 for detecting a reception signal from the other ultrasonic vibrator, and a transmission/reception changeover switch 3 for switching mutually one ultrasonic vibrator to/from the other ultrasonic vibrator. The flowmeter has equalized values, namely, a resistance value of a route for the transmission signal when transmitting/receiving the ultrasonic wave in the forward direction, a resistance value of a route for the reception signal when transmitting/receiving the ultrasonic wave in the forward direction, a resistance value of a route for the transmission signal when transmitting/receiving the ultrasonic wave in the reverse direction, and a resistance value of a route for the reception signal when transmitting/receiving the ultrasonic wave in the reverse direction. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供能够通过消除测量误差来提高流量的测量精度的超声波流量计。解决方案：在该超声波流量计中，在通道的上游侧和下游侧以固定距离设置一对超声波振动器2a，2b，通过切换发送/ 在正向和反向之间的接收方向，并且基于超声波在每个方向上的到达时间来确定流量。流量计包括用于产生要发送到一个超声波振动器的发送信号的发送电路4，用于检测来自其他超声波振动器的接收信号的接收检测电路5和用于切换相互一个超声波振动器的发送/接收切换开关3 往/从另一个超声波振动器。流量计具有相等的值，即在向前方向发送/接收超声波时的发送信号的路线的电阻值，在向前发送接收超声波时的接收信号的路径的电阻值方向，当在相反方向上发送/接收超声波时用于发送信号的路线的电阻值，以及在反方向发送/接收超声波时用于接收信号的路线的电阻值。版权所有（C）2008，JPO＆INPIT

69. 发明专利

JP2002122456A GAS METER 失效
公开(公告)号：JP2002122456A
公开(公告)日：2002-04-26
申请号：JP2000312560
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 , 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 never performing an erroneous determination that a flow rate is present during interruption in the generation of a pulsation in a perfectly stopped state of the gas supply by the operation of a shut-off valve. SOLUTION: When the pulsation is generated in a perfectly stopped state of gas supply by the interrupting operation of the shut-off valve 10e, since the integrated value 10g of the momentary flow rate 10f of the gas by pulsation is 0 by positive and negative cancellation, it can be precisely determined whether the supply of gas is perfectly stopped or not even in the pulsation by the determination based on the integrated value of the momentary flow rate of gas. In this gas meter 10, a control part 10a restarts the shut-off valve 10e when the momentary flow rate integrated value 10g outputted by a momentary flow rate integration part 10b exceeds a prescribed value during the interruption by the shut-off valve after the shut-off valve 10e performs the interrupting operation once.

70. 发明专利

JP2002094679A METER DEVICE 失效
公开(公告)号：JP2002094679A
公开(公告)日：2002-03-29
申请号：JP2000276513
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： G08C19/18 , H04M11/00 , H04Q9/00
摘要： PROBLEM TO BE SOLVED: To provide a meter device capable of communicating at a plurality of signaling speeds, utilizing a wireless or wired communication circuit, without burdening a communication party with addition of a pulse generator or mark signal length changer circuit. SOLUTION: Asynchronous serial communication transmitter-receiver circuits 11-1n adapted to different signaling speeds are provided in parallel to outputs from an interface circuit 1.

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