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1. 发明专利

JP2002358589A AUTOMATIC METER-READING RADIO EQUIPMENT 失效
公开(公告)号：JP2002358589A
公开(公告)日：2002-12-13
申请号：JP2001163540
申请日：2001-05-31
申请人： MATSUSHITA ELECTRIC IND CO LTD , TOKYO GAS CO LTD , OSAKA GAS CO LTD , TOHO GAS KK , TOSHIBA CORP , FUJI ELECTRIC CO LTD
发明人： ITO MASAO , SATO YUICHI , FUJIWARA JUN , YUZAWA TAKAHIRO , YASUI MASAHIRO , YAMAGUCHI SHOJI , ISHIDA HIROSHI , HIROYAMA TORU , KAWAI TOSHIHIKO , SATO TOMONORI , KONDO SHIRO , MATSUMOTO EIJI , NUMAGAMI TAKESHI
IPC分类号： G08C17/00 , H04B7/24 , H04M11/00 , H04Q9/00
摘要： PROBLEM TO BE SOLVED: To provide automatic meter-reading radio equipment for an automatic meter-reading capable of improving the efficiency of an installation operation by easily identifying the cause of defective registration in the registering work of a radio master set and a radio slave set when the automatic meter-reading radio equipment is installed. SOLUTION: The radio slave set 6 is provided with a first time measuring part 68 for measuring a responding time from a meter 7, a second time measuring part 69 for measuring a responding time from the radio master set 5, a radio wave detection part 70 for detecting the presence/absence of radio waves in the operation frequency band of radio transmission/reception, a third time measuring part 71 for measuring the detecting time of the radio waves, and a display part 67 for displaying a plurality of registration error patterns. When the time measure respectively by the first, second or third measuring parts 68, 69 and 71 exceeds a prescribed time, a control part 63 controls the display part 67 to display the time with an error pattern corresponding to the main cause respectively.

2. 发明专利

JP2001168998A COMMUNICATION SYSTEM 失效
公开(公告)号：JP2001168998A
公开(公告)日：2001-06-22
申请号：JP34721699
申请日：1999-12-07
申请人： TOKYO GAS CO LTD
发明人： SATO YUICHI , ISHIKAWA KIYOHISA , ASANO KIMI
IPC分类号： H04Q9/02 , H04B7/24 , H04M11/00
摘要： PROBLEM TO BE SOLVED: To provide a communication system, where an intermittent drive time interval for a PHS terminal is switched so as to enhance customer service and reduce a PHS terminal maintenance cost. SOLUTION: As soon as a gas plug closing command is sent, an intermittent drive time interval of a PHS terminal is switched from a time t1 (e.g., 6 hours) to a time t2 (e.g., 15 minutes), to reduce the waiting time. When receiving a gas plug open command, the plug opening processing is conducted in a comparatively short time to enhance the customer service performance. In a normal waiting state, the intermittent drive time interval is selected to be the time t1, so as to reduce the PHS terminal maintenance cost. When the intermittent drive time interval is selected to be the time t2 and no gas plug open command comes, even after the lapse of a prescribed time t4 (e.g., 3 days), the intermittent drive time interval is restored again to the time t1, to save power consumption of the PHS terminal.

3. 发明专利

JP2000048292A AUTOMATIC METER-READING SYSTEM 失效
公开(公告)号：JP2000048292A
公开(公告)日：2000-02-18
申请号：JP21134598
申请日：1998-07-27
申请人： MITSUBISHI ELECTRIC CORP , TOKYO GAS CO LTD
发明人： SHIMOE MASAYOSHI , TAKADA YUJI , FUJIMOTO HITOSHI , YASHIMA KOJI , SATO YUICHI , ASANO KIMI
IPC分类号： G08C15/00 , G01D4/00 , H04B7/26 , H04Q9/00
摘要： PROBLEM TO BE SOLVED: To provide an automatic meter-reading system capable of long-time operation through a battery by reducing the power consumption of terminal equipment. SOLUTION: Concerning the automatic meter-reading system provided with center equipment 5 for collecting and managing measured value data while utilizing the public line of personal handy phone system (PHS(R)), interchange base station 8 connected through a public base station 7 of PHS(R) to the center equipment 5 so as to perform communication in the public mode of PHS(R) and terminal equipment 10 for transmitting the measured value data of a meter 11 to the center equipment by performing communication in the inter-hand set direct speech mode of PHS(R) while having the same system calling code as the repeater base station, in this automatic meter-reading system, the repeater base station 8 transmits plural calling signals in each prescribed cycle and the terminal equipment 10 searches the calling signals in the said prescribed cycle. Thus, the power consumption of the terminal equipment can be reduced in comparison with a conventional calling signal search system.

4. 发明专利

JPH10173649A COMMUNICATION CONTROLLER 失效
公开(公告)号：JPH10173649A
公开(公告)日：1998-06-26
申请号：JP32557696
申请日：1996-12-05
申请人： TOKYO GAS CO LTD
发明人： SATO YUICHI
IPC分类号： H04L29/00 , H04L12/02 , H04M11/00 , H04Q9/00
摘要： PROBLEM TO BE SOLVED: To provide a communication controller which is reduced in power consumption. SOLUTION: I-NCU 7a takes in a caller sub-address 63 of a setup message 51 transmitted from a center to I-NCU 7a into a shift register 35. A comparator 39 judges whether or not a value which is kept in a matching signal setting register 37 matches with a value which has been previously set in the shift register 35. When the value kept in the matching signal setting register 37 matches with the value of the shift register 35, a comparator 39 outputs a matching signal A and a switch 18 in a power control part 17 is turned off by the output of the matching signal A. Then, power is supplied to a communication control part 15 from a battery 21.

5. 发明专利

JPH10160614A ACOUSTIC DEVICE FOR SPECIFYING LEAKAGE POSITION 失效
公开(公告)号：JPH10160614A
公开(公告)日：1998-06-19
申请号：JP31536196
申请日：1996-11-27
申请人： TOKYO GAS CO LTD
发明人： SATO YUICHI , WAKASA KIYOUSUKE
IPC分类号： G01M3/24 , G06F17/15
摘要： PROBLEM TO BE SOLVED: To provide such an acoustic device for specifying leakage position that can measure accurately a distance between microphones without complicated configuration and specify the leaking position of piping precisely. SOLUTION: This device is provided with microphones 2 and 3 which are provided on both ends of a piping 1 so as to measure leaking sound at the leaking position, and a signal processing part 10 which specifies the leaking position between the microphones 2 and 3 in the piping 1 according to the difference in propagation time of leaking sound that is obtained by applying the cross-correlation method to two acoustic signals picked up through the microphones 2 and 3 and a distance between the microphones 2 and 3. In this case, a speaker 4 is placed outside of the microphones 2 and 3 in the piping 1, and the microphones 2 and 3 measure the sound from the speaker 4, and then the signal processing part 10 applies the cross-correlation method to two acoustic signals that the microphones 2 and 3 obtain the sound through the speaker 4, thereby computing a distance between the microphones.

6. 发明专利

JPH0814958A WHISTLE-TYPE FLOWMETER 失效
公开(公告)号：JPH0814958A
公开(公告)日：1996-01-19
申请号：JP14929794
申请日：1994-06-30
申请人： TOKYO GAS CO LTD
发明人： WATANABE YOSHIJIROU , MATSUBARA KENICHI , SATO YUICHI
IPC分类号： G01F1/00
摘要： PURPOSE:To provide a whistle-type flowmeter in which a linear proportionality range for the flow rate of a flowing fluid and for the oscillating frequency of a whistle sound is expanded as far as possible and which can measure a flow rate in a wide range from a low-flow-rate region up to a high-flow-rate region. CONSTITUTION:A whistle-type flowmeter is provided with a sound-generating unit 10, which is provided with a mouthpiece if into which a fluid flows, with an acoustic hole 1b through which a jet stream from the mouthpiece is passed and with a cavity by which the jeat stream gives a fluid sediment a rotating and vibrating motion, with a sound-collecting means 2 which collects a sound generated by the sound-generating unit 10, with a filter means 3 which makes the fundamental-frequency component of the generated sound by the sound- generating unit 10 out of an output-signal frequency component pass from the sound-collecting means, with a frequency detection means 5 which detects the frequency of the fundamental frequency component and with an arithmetic means 6 which operates the flow rate of the fluid on the basis of the frequency of the fundamental frequency component by means of a relational expression between a predetermined flow rate and a predetermined frequency.

7. 发明专利

JPH07168856A DATA COLLECTING DEVICE 失效
公开(公告)号：JPH07168856A
公开(公告)日：1995-07-04
申请号：JP34293693
申请日：1993-12-15
申请人： TOKYO GAS CO LTD
发明人： SATO YUICHI
IPC分类号： G06F17/40 , G01F3/22
摘要： PURPOSE:To provide a data collecting device which can facilitate the data collecting jobs and also can shorten the data collecting time. CONSTITUTION:A data processing part 3 of a data logger l calculates a pulse pattern based on the transmission pulse received from a gas meter and stores this pattern in a fixed memory 5. A memory card writer 7 writes the data stored in the memory 5 into 8 memory card 11 when the card 11 is put into the logger 1. A worker carries the card 11 with him end puts the card 11 into the logger 1 once per month to collect data. Then the card 11 is loaded into a data analyzing device (not shown in the diagram) and the data are analyzed.

8. 发明专利

JPH0783708A WHISTLE TYPE FLOWMETER 失效
公开(公告)号：JPH0783708A
公开(公告)日：1995-03-31
申请号：JP25376793
申请日：1993-09-16
申请人： TOKYO GAS CO LTD
发明人： WATANABE YOSHIJIROU , MATSUBARA KENICHI , SATO YUICHI
IPC分类号： G01F1/00
摘要： PURPOSE:To obtain a compact flowmeter, which can measure the flow rate of even a non-conductive fluid, with a simple whistle structure having no moving part by arranging a sound generation unit and means for collecting and filtering sounds and for detecting and computing frequency. CONSTITUTION:A sound generation unit 1 of a whistle structure is connected in the middle of gas pipelines 10a and 10b. A microphone 2 is mounted at a part to collect sounds generated by the unit 1 while a gas is flowing. A component outside a range to be measured contained in a signal to be outputted from the microphone 2 is removed through a high cut filter 3. The signal is compared with a fixed value by a comparator 4 having a hysteresis to perform a waveform shaping. A pulse signal to be outputted from the comparator 4 is counted 5 to obtain a frequency. A flow rate is computed by a flow rate computing device 6 by a specified relational expression based on the frequency and the results of the computation is displayed 7. Since the apparatus can be made small and has a simple structure and no moving part, adaptation to any trouble is easy achieving measurement of all available fluids without demand for conductivity made by a measuring electric body.

9. 发明专利

JPH10160615A ACOUSTIC DEVICE FOR SPECIFYING LEAKAGE POSITION 失效
公开(公告)号：JPH10160615A
公开(公告)日：1998-06-19
申请号：JP31536296
申请日：1996-11-27
申请人： TOKYO GAS CO LTD
发明人： SATO YUICHI , WAKASA KIYOUSUKE
IPC分类号： G01M3/24 , G06F17/15
摘要： PROBLEM TO BE SOLVED: To provide such an acoustic device for specifying a leakage position that can specify the leaking position accurately even when a noise is generated in a piping. SOLUTION: This device is provided with microphones 2 and 3 which are provided on both ends of a piping so as to measure leaking sound from leaking position, and a signal processing part 8 which specifies the leaking position between the microphones 2 and 3 in the piping 1 according to first and second acoustic signals that are obtained through the microphones 2 and 3. In this case, the signal processing part 8 prepares a signal from which an influence of noise from either of noise sources outside of the microphones 2 and 3 in the piping 1 is removed, and specifies the leaking position according to the self-correlation function of the signal having no influence of noises.

10. 发明专利

JPH09284416A LINE TERMINAL EQUIPMENT 失效
公开(公告)号：JPH09284416A
公开(公告)日：1997-10-31
申请号：JP8964596
申请日：1996-04-11
申请人： MITSUBISHI ELECTRIC CORP , TOKYO GAS CO LTD
发明人： TAKADA YUJI , ASANO KIMI , SATO YUICHI
IPC分类号： H02J1/00 , H02J7/00 , H04L12/02 , H04M11/00
摘要： PROBLEM TO BE SOLVED: To suppress power consumption of its own terminal equipment by switching the control part of its own terminal equipment to a low power consumption mode when another terminal equipment connected on the same bus of an ISDN line is under operation and communicating without relation to its own terminal equipment. SOLUTION: This equipment is provided with an INFO zero detection part 10 detecting the INFO zero state of the ISDN line 3, a net control part 4a executing communication control, a central control part 6a controlling the whole of the line terminal equipment 1A and capable of switching to the low power consumption mode and a switching switch 9 switching an input from the ISDN line 3 to the detection part 10 or a network control part 4. At the time of communication without relation to its own terminal equipment, the central control part 6a is switched to the low power consumption mode and at the time of detecting an INFO zero state, the switch 9 is switched to the net control part 4a to make the line terminal equipment 1A wait in the low power consumption mode.

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