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131. 发明专利

JP2002165365A POWER SYSTEM CONTROL METHOD 失效
公开(公告)号：JP2002165365A
公开(公告)日：2002-06-07
申请号：JP2000354219
申请日：2000-11-21
申请人： OSAKA GAS CO LTD
发明人： HAYAKAWA HIDEKI , YANO MASAFUMI , KURAMITSU HIROMI , SANTO YASUSHI
IPC分类号： H02J3/00 , H02J3/46
摘要： PROBLEM TO BE SOLVED: To provide a power system control method which makes power output control of each power generating set within a practical computation time regardless the number of power generating sets, maximizing the power generating efficiency of a whole power system and satisfying the power demand for the whole power system in which a plurality of power generating sets are dispersedly distributed. SOLUTION: At each individual unit of the plurality of the power generating sets, the output of each power generating set is autonomously controlled according to the local information obtained from its own set and a part of the other power generating sets, out of information regarding the power demand supply balance of the power system and each power generating efficiency of the plurality of the power generating sets.

132. 发明专利

JP2001281349A PLASTIC PIPE 失效
公开(公告)号：JP2001281349A
公开(公告)日：2001-10-10
申请号：JP2000092109
申请日：2000-03-29
申请人： OSAKA GAS CO LTD
发明人： KAWAGUCHI TAKAFUMI , YAMAGUCHI HIDEKI , HAYAKAWA HIDEKI , NISHIMURA HIROYUKI
IPC分类号： G01V3/10 , B29C47/06 , G01S13/75 , G01S13/76 , G01S13/79
摘要： PROBLEM TO BE SOLVED: To provide a technology for carrying out investigation using a marking structure with an LC resonance circuit, having durability, capable of being executed at a relatively low cost. SOLUTION: In this technology, a plastic pipe where the LC resonance circuit generating an electromagnetic response signal in response to an electromagnetic sending signal is mounted to either of a space inside the pipe and the inside of a pipe wall as a marking body 3 is used, or a marking body installing sheet where the LC resonance circuit is mounted to a sheet-like supporting body that is inserted into the pipe and brought into slide contact with the inner surface of the pipe to generate location-holding power as the marking body 3 is used.

133. 发明专利

JP2001264434A DEVICE FOR SURVEYING RESONANCE BODY MARKER 失效
公开(公告)号：JP2001264434A
公开(公告)日：2001-09-26
申请号：JP2000073767
申请日：2000-03-16
申请人： OSAKA GAS CO LTD , FUJI TECOM INC , MIYAKE KK
发明人： HAYAKAWA HIDEKI , MORIZAKI HIROYASU , KUBOTA KENJI
IPC分类号： G01V3/12 , G01S13/82 , G01S13/88 , G01V3/00
摘要： PROBLEM TO BE SOLVED: To provide a highly sensitive device for surveying a resonance body maker capable of using a small and inexpensive resonance body marker having an LC resonance circuit formed. SOLUTION: This device for surveying the resonance body marker comprises a transmitting part 2 for intermittently transmitting a transmitting signal at a specified frequency to the resonance body marker 20 through a variation of magnetic field with time, and also comprises a receiving part 3 for receiving a responding signal, sent by the resonance body marker 20 with responding to the transmitting signal, through the variation of the magnetic field with time so as to survey the resonance body marker 20 based on the receiving signal. The transmitting part 2 comprises a transmitting side local oscillator 6 for sweeping the frequency of the transmitting signal stepwise within a specified frequency range including resonance frequency of the resonance body marker 20 while repeating a series of the sweeping at a specified repeating period. The receiving part 3 comprises a band-pass filter 13 with a pass band including a repeating frequency obtained as an inverse of the repeating period of the transmitting side local oscillator 6.

134. 发明专利

JP2001183469A ANTENNA FOR UNDERGROUND DETECTION RADAR 失效
公开(公告)号：JP2001183469A
公开(公告)日：2001-07-06
申请号：JP36706599
申请日：1999-12-24
申请人： OSAKA GAS CO LTD
发明人： NAKAUCHI HIROWAKA , HAYAKAWA HIDEKI
IPC分类号： G01V3/12 , G01S7/03 , G01S13/88 , H01Q3/26
摘要： PROBLEM TO BE SOLVED: To speedily and accurately detect a three-dimensional position of an underground buried structure. SOLUTION: A single transmitting antenna element 1a and a plurality of receiving antenna elements 1b-1d are arranged in a plurality of partial storing spaces 4a-4d, formed in a conductive antenna housing 2. The antenna elements 1a-1d, in which pairs of conductors 5a-5d, 6a-6d are arranged on respective straight line 33 constitute a dipole antenna. The conductors 5a-5d, 6a-6d has a length λ/2, when the wavelength of a used frequency is λ. The receiving antenna element 1b-1d are arranged, while, being shifted longitudinally by λ/2 of the conductors 5a-5d, 6a-6d. Based on the time difference ΔW1-ΔW1 between a pulse-like transmitted signal provided for the transmitting antenna element 1a and received signals provided form respective receiving antenna elements 1b-1d, distance, namely the position, of the underground buried structure 13 can detected speedily and accurately.

135. 发明专利

JP2000266617A APPARATUS AND METHOD FOR MEASURING MAGNETOSTRICTIVE STRESS 失效
公开(公告)号：JP2000266617A
公开(公告)日：2000-09-29
申请号：JP7567499
申请日：1999-03-19
申请人： OSAKA GAS CO LTD
发明人： MORIZAKI HIROYASU , HAYAKAWA HIDEKI , SAITO TEI , ENOKI KOICHI
IPC分类号： G01L1/12 , G01R33/18
摘要： PROBLEM TO BE SOLVED: To make accurately calculable a stress to be applied to a gas pipe by providing a correcting means based on conductivity of an object to be measured for an electromotive force value captured by a detecting coil, and evaluating the stress based on the corrected force value. SOLUTION: In a magnetostrictive sensor 1, an exciting core 3 on which an exciting coil 2 is wound and a detecting core 5 on which a detecting coil 4 is wound are disposed in a mutually intersecting state, and an interval detecting coil 6 is wound on the core 3. With this configuration, an AC current is given to the coil 2, electromotive force values detected by the coils 4 and 6 are taken up as DC signals by a synchronous detector at each period decided by receiving a command from a clock device, and processed by an evaluating means having a CPU. Conductivities are previously measured for different objects to be measured by a conductivity input means, and selectively input based on manufacturing year or method of a cast steel tube C. The AC current given to the coil 2 which is scarcely affected by an influence of a surface state of the object is selected.

136. 发明专利

JP2000028747A PROSPECTING METHOD AND DEVICE 失效
公开(公告)号：JP2000028747A
公开(公告)日：2000-01-28
申请号：JP12408499
申请日：1999-04-30
申请人： OSAKA GAS CO LTD
发明人： HAYAKAWA HIDEKI , KISHI MASAKI , TSUNASAKI MASARU
IPC分类号： G01C15/00 , G01B17/00 , G01S13/88 , G01V1/28 , G01V3/12 , G01V3/15
摘要： PROBLEM TO BE SOLVED: To provide a prospecting method where a device for transmitting and receiving wave signals is aligned easily on the ground surface, a practical prospecting speed can be secured, and position measurement accuracy on the ground surface is high in a prospecting method for emitting wave signals into a medium while traveling on the ground surface and receiving reflection signals from an object in the medium, generating three-dimensional voxel data with a position on the ground surface for reflection signal strength and reflection time as coordinates (x0, y0, t), and detecting the position of the object based on the three-dimensional box cell data. SOLUTION: Each traveling distance of a pair of fixed wheels 7R and 7L where rotary shafts for supporting a transmission/reception device 10 are coaxial is measured by a distance member 19 that is provided at the fixed wheels 7R and 7L, the position coordinates of a specified wheel 29 in a measurement coordinates system determined by a starting point S and the initial attitude of the specified wheel 29 at one side in the fixed wheels 7R and 7L and a direction (X, Y, θ) are calculated, and specific coordinates (X0, Y0) in the transmission/reception device 10 are obtained from the result.

137. 发明专利

JPH11281751A Method and device for locating buried object for underground pipe jacking method 失效
标题翻译：用于定位用于地下管道封堵方法的埋设对象的方法和装置
公开(公告)号：JPH11281751A
公开(公告)日：1999-10-15
申请号：JP8460898
申请日：1998-03-30
申请人： Osaka Gas Co Ltd , 大阪瓦斯株式会社
发明人： NAKAUCHI HIROMASA , HAYAKAWA HIDEKI
IPC分类号： E21D9/06 , G01S13/88 , G01V3/12
摘要： PROBLEM TO BE SOLVED: To provide a method and device for locating buried object by which the breakage of a buried object, such as the buried pipe, can be prevented surely at the time of executing the underground pipe jacking method.
SOLUTION: In a method for locating buried object, a transmission-reception process S1, in which a buried object locating device radiates a wave signals toward an object in a medium while moving toward the object and receives reflected signals from the object; a two-dimensional picture data generating process S2, in which the device generates two-dimensional picture data against the intensities of the received reflected signals by using the moving distance (x) and reflecting time (t) as coordinates (x, t); and a signal intensity adding process S3, in which the device adds the signal intensities of the two-dimensional data along each inclination corresponding to a plurality of preset propagating speeds Vi of the wave signal in the medium at every reflecting time (t) at a specific moving distance (x) in the x-t plane constituted of the moving distance (x) and reflecting time (t); are successively executed. When the amplitude values of the added reflected signal intensities in areas shorter than prescribed critical reflecting time tB
i set at every propagating speed vi are equal to or larger than a threshold ST, the device is instructed to stop its movement toward the object.
COPYRIGHT: (C)1999,JPO
摘要翻译：要解决的问题：提供一种用于定位被埋物体的方法和装置，通过该方法和装置可以在执行地下管顶起动方法时可靠地防止诸如埋管的埋置物体的破损。解决方案：一种用于定位埋藏物体的方法，一种发射接收处理S1，其中掩埋物体定位装置朝向物体朝向物体朝向物体朝物体辐射波信号并接收反射信号; 二维图像数据生成处理S2，其中，通过使用移动距离（x）和反射时间（t）作为坐标（x，t），装置针对接收到的反射信号的强度产生二维图像数据; 以及信号强度相加处理S3，其中，器件在每个反射时间（t）处，在每个反射时间（t）处，在与介质中的波信号的多个预设传播速度Vi相对应的每个倾斜的每个倾斜处添加二维数据的信号强度，由移动距离（x）和反射时间（t）构成的xt平面中的特定移动距离（x）; 依次执行。当在每个传播速度vi下设定的比规定的临界反射时间tBi短的区域中加上的反射信号强度的振幅值等于或大于阈值ST时，指示该装置停止向物体的移动。

138. 发明专利

JPH11183635A APPARATUS AND METHOD FOR DETECTING HIDDEN OBJECT IN GROUND 失效
公开(公告)号：JPH11183635A
公开(公告)日：1999-07-09
申请号：JP35814297
申请日：1997-12-25
申请人： OSAKA GAS CO LTD
发明人： NAKAUCHI HIROMASA , TSUNASAKI MASARU , KISHI MASAKI , HAYAKAWA HIDEKI , ARAI IKUO
IPC分类号： E21D9/06 , G01S13/88 , G01V3/12
摘要： PROBLEM TO BE SOLVED: To provide a detecting apparatus that can highly accurately detect a position where a hidden object is buried in the ground. SOLUTION: An apparatus includes a transmitter 52 generating transmission signals of a predetermined frequency, a transmission pulse generator 54 generating transmission pulse signals in relation to the transmission signals, a transmission antenna 56 for transmitting electromagnetic waves based on the transmission pulse signals, a reception antenna 58 for receiving reflecting waves from an underground hidden object, a phase shift means 64 for varying and delaying a phase of the transmission signals as required, a sampling pulse generator 72 generating sampling pulse signals in relation to the delayed transmission signals, a sampling means 62 for sampling signals received at the reception antenna 58 on the basis of the sampling pulse signal, and a signal-processing means 74 for integrating received signals sampled by the sampling means 62, thereby detecting a position of the underground hidden object.

139. 发明专利

JPH1183995A OBSTACLE DETECTOR AND DETECTING METHOD IN UNDERGROUND PROPELLING WORK 失效
公开(公告)号：JPH1183995A
公开(公告)日：1999-03-26
申请号：JP24410797
申请日：1997-09-09
申请人： OSAKA GAS CO LTD
发明人： NAKAUCHI HIROMASA , TSUNASAKI MASARU , KISHI MASAKI , HAYAKAWA HIDEKI
IPC分类号： E21B7/04 , G01S7/03 , G01S13/28 , G01S13/88 , G01V3/12 , H01Q1/04 , H01Q1/22
摘要： PROBLEM TO BE SOLVED: To enhance the workability of propelling work by an arrangement wherein a transmitting/receiving antenna for detecting an obstacle in the soil is incorporated in the forward end part of a propelling body. SOLUTION: A communication transmitting means 181 for transmitting a frequency modulated carrier from a transmitting/receiving antenna is built in the forward end part 66 of a propelling body 64. An electromagnetic wave propagating through the soil from the communication transmitting means 181 is received by a communication receiving means 182 on the ground thus detecting obstacles existing in the vicinity of the forward end part 66 of the propelling body 64. Consequently, the propelling body 64 is advanced straight or curved in the soil thus avoiding collision against an obstacle.

140. 发明专利

JPH1183994A OBSTACLE DETECTOR AND DETECTING METHOD IN UNDERGROUND PROPELLING WORK 失效
公开(公告)号：JPH1183994A
公开(公告)日：1999-03-26
申请号：JP24410597
申请日：1997-09-09
申请人： OSAKA GAS CO LTD
发明人： NAKAUCHI HIROMASA , TSUNASAKI MASARU , KISHI MASAKI , HAYAKAWA HIDEKI
IPC分类号： E21D9/06 , G01S7/03 , G01S13/88 , G01V3/12
摘要： PROBLEM TO BE SOLVED: To propel a propelling body through the ground while avoiding obstacles presenting in the ground. SOLUTION: A transmitting/receiving antenna is fixed to a fixing seat inclining against the axis of the forward end part 66 of a flexible propelling body. The forward end part 66 is rotary driven round the axis to advance straight or not driven rotary but driven to push in and a propelling body 64 is propelled while being bent such that the fixing seat and antenna 33 side is located on the radial outside of the track. The transmitting/receiving antenna comprising a flat section and a cubic section can enhance the directivity and multiplex reflection of electromagnetic wave to the inside of the forward end part 66 can be suppressed by means at a radio wave absorbing material made of ferrite.

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