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21. 发明专利

JPH06273124A METHOD FOR CALCULATING SHORTEST DISTANCE BETWEEN PANTAGRAPH AND WALL SURFACE OF TUNNEL 失效
公开(公告)号：JPH06273124A
公开(公告)日：1994-09-30
申请号：JP8815593
申请日：1993-03-23
申请人： HITACHI ELECTR ENG , HITACHI LTD , HIGASHI NIPPON RYOKAKU TETSUDO
发明人： TAKENAKA YASUO , HIRAI TETSURO , NINOMIYA TAKANORI , TAKAHASHI SEIICHI , MATSUURA KAZUFUMI
IPC分类号： B60L3/00 , B60L5/24 , G01B11/14 , G06T1/00 , G06F15/62 , G06F15/64
摘要： PURPOSE:To provide a method for obtaining the shortest distance between a horn part of a pantagraph and a wall surface of a very small tunnel or structure when a distance measuring apparatus processes images. CONSTITUTION:The image data detected by an ITV camera of a separated distance measuring apparatus is processed, and the intensity of the detected light is binarized for each pixel by a suitable threshold value. In consequence, a contour of a wall surface of a tunnel or a structure to which the light beams are projected and that of the horn part are extracted. Then, the number of pixels of each contour is increased by (x), thereby to obtain an expanded contour Rx, R'x with an extended width. One of the expanded contours is traced to measure the length Qx of the periphery. When the length suddenly increases as a result of the gradual increase of the number of pixels, it is so judged that both expanded contours are brought in touch with each other. The sum of the width of the expanded contours in touch with each other is determined as the shortest distance between the horn part and the wall surface of curves, or between the horn part and a structure of an optional shape. Accordingly, the shortest distance be correctly calculated and the reliability of the separated distance measuring apparatus is improved.

22. 发明专利

JPH06258030A HEIGHT MEASURING APPARATUS FOR TROLLEY WIRE 失效
公开(公告)号：JPH06258030A
公开(公告)日：1994-09-16
申请号：JP6938793
申请日：1993-03-04
申请人： HITACHI ELECTR ENG , HITACHI LTD , HIGASHI NIPPON RYOKAKU TETSUDO
发明人： YOSHIZAWA TAKAO , SATO MUNEO , TAKENAKA YASUO , OURA YASUSHI , TSUBURAYA TETSUO , IKEDA KUNIO
IPC分类号： G01B11/00 , G01B11/02 , G01C3/06
摘要： PURPOSE:To provide a convenient optical height measuring apparatus for trolley wire. CONSTITUTION:The height measuring apparatus for trolley wire comprises a light projecting system 7 and a light receiving system 8 disposed oppositely on a center line C on the roof of a vehicle 3, and a data processing section mounted on the vehicle 3. The light projecting system 7 projects a laser beam LT having a width corresponding to the lateral shift D of a trolley wire 1 obliquely upward at a projection angle of thetaT. The light receiving system 8 has the optical axis set at a light receiving angle thetaR equal to the projection angle thetaT with respect to the center line Hc of height variable range Hv and comprises an interference filter 81, a focus lens 82, and a CCD linear sensor 83 disposed perpendicularly to the light receiving optical axis and arranged with a plurality of elements having width corresponding to the lateral displacement D while corresponding to the height variable range Hv of trolley wire. This apparatus allows measurement in day time and can be used in place of conventional mechanical height detector. When two sets of apparatus are set on a train, oscillation of trolley wire due to pressing force of pantograph can be grasped positively and oscillation data for enhancing the speed can be obtained.

23. 发明专利

JPS63315937A DIRECTION ADJUSTING METHOD FOR LASER BEAM IN PRINTED BOARD INSPECTING DEVICE 失效
公开(公告)号：JPS63315937A
公开(公告)日：1988-12-23
申请号：JP15232487
申请日：1987-06-18
申请人： HITACHI ELECTR ENG , HITACHI LTD
发明人： OGAWA SHOHEI , TAKENAKA YASUO , TSUKAZAKI KOICHI
IPC分类号： G01N21/88 , G01N21/956 , H05K3/34
摘要： PURPOSE:To align a laser beam rationally and efficiently by adjusting the direction of a light source with a circularly sectioned beam and adjusting an optical component with an elliptically sectioned beam. CONSTITUTION:Almost all of the circularly sectional laser beam 3a from the light source 3 is reflected by a partial transmission mirror 13a and the remainder is transmitted. This transmitted light is photodetected by a shift detector 12 consisting of four divided photodetection diodes and the projection direction of the laser light source is so adjusted that the photodetection levels of the respective photodetecting elements are equal. The reflected light from the mirror 13a is changed in direction by a mirror 4b and converted by an expander 5 and a compander 6 into the elliptically sectioned beam 14, part of which is transmitted through a partial transmission mirror 13b. Shift detectors consisting of diodes 15-1 and 15-2 are arranged at both ends of the ellipse major axis of the transmitted light symmetrically and the position and direction of each optical component are so adjusted that the photodetection levels are equal to each other.

24. 发明专利

JPS6038662A DETECTING AND MEASURING DIRECTION DETECTING AND RECORDING SYSTEM OF DETECTING AND MEASURING CAR 失效
公开(公告)号：JPS6038662A
公开(公告)日：1985-02-28
申请号：JP14650683
申请日：1983-08-12
申请人： JAPAN NATIONAL RAILWAY , HITACHI LTD , HITACHI ELECTR ENG
发明人： HICHIWA TAKASHI , TAKENAKA YASUO , TAKEI SHIYOUJIROU , TAKAHASHI KENSAKU
IPC分类号： B60M1/28 , G01P13/04
摘要： PURPOSE:To enable the detection and recording of a detecting and measuring direction adapted to a stringing detecting and measuring car, by forming a pulse line having order characteristics inherent to the axle rotary direction of the detecting and measuring car and detecting an advance direction by a logical circuit. CONSTITUTION:A slit plate 2 and a sensor 3 are provided to the axle 1a of a truck 1 to constitute a pulse generator and a pluse line obtained from said pulse generator is inputted to the detecting and measuring direction detecting circuit 4 provided on the truck 1 and a reverse signal and a detecting direction signal are recorded by a recorder 18. The paper feed of the recordar 18 comprises a distance proportional system and the detecting and measuring data obtained by a stringing detecting and measuring part 16 is subjected to desired processing in a signal processing part 17 to be recorded by the recorder 18. By this method, the detection and recording of a detecting and measuring direction adapted to a stringing detecting and measuring car can be performed.

25. 发明专利

JPH08334421A TENSION MEASURING METHOD FOR TROLLEY CABLE 失效
公开(公告)号：JPH08334421A
公开(公告)日：1996-12-17
申请号：JP16286195
申请日：1995-06-06
申请人： TOKAI RYOKAKU TETSUDO KK , HITACHI ELECTR ENG
发明人： GOTO TAKEHISA , ANDO YASUNORI , NAGASAKA YOSHINOBU , TAKENAKA YASUO , YOSHIZAWA TAKAO
IPC分类号： G01L5/10 , B60L5/00
摘要： PURPOSE: To judge the reduction of the tension in trolley cable, and to prepare the data in setting the tension in the trolley cable adaptable to the speed-up of electric vehicle. CONSTITUTION: An oscillation wave sensor part 91 to detect the transverse oscillation wave WL and the longitudinal oscillation wave WH generated by a trolley cable 4 is mounted on a terminating end Se of the drum section of the trolley cable 4 by the impact and the sliding contact of a pantagraph 5a of an electric vehicle 5 traveling in the drum section, and a signal analysis part 92 to the oscillation waves WL, WH is provided on the ground.

26. 发明专利

JPH0338050A LOADING MECHANISM FOR LEAD FRAME 失效
公开(公告)号：JPH0338050A
公开(公告)日：1991-02-19
申请号：JP17278789
申请日：1989-07-04
申请人： HITACHI ELECTR ENG
发明人： TAKENAKA YASUO , TAMURA RYOICHI , SHINPO SENJI
IPC分类号： H01L21/66
摘要： PURPOSE:To avoid the bending caused by gravity and prevent the generation of defocusing of an inspection optical system, by making vertical the surface of a common sheet to be inspected which is inserted into a guide rail. CONSTITUTION:An upper rail 7a and a lower rail 7b which have v-shaped grooves are coupled horizontally and in parallel with each other by a coupling bar 7c, thereby constituting a guide rail 7, whose surface is vertically arranged. Since the width size of a common sheet to be inspected is various, the length of the coupling bar 7c is so long that the width can be freely changed. Thus the surface of the common sheet 1' inserted into the groove of the guide rail 7 becomes vertical. Thereby the bending caused by gravity can be avoided and the generation of defocusing of an inspection optical system can be prevented.

27. 发明专利

JPH01100413A INSPECTION OF BENDING OF LEAD WIRE IN IC PACKAGE 失效
公开(公告)号：JPH01100413A
公开(公告)日：1989-04-18
申请号：JP25881187
申请日：1987-10-14
申请人： HITACHI ELECTR ENG
发明人： ENDO NORIO , TAKENAKA YASUO
IPC分类号： G01B11/24
摘要： PURPOSE:To inspect the direction and the extent of the bending of a lead wire, by comparing the amount of received light of a spot inputted each image receiving element of a four split image receiving element, detecting the position of the received spot image, and comparing the position with the data on a standard position. CONSTITUTION:The spot of projected light 6 from a point light source 5 is applied on the horizontal part of a tip part 2a of a lead wire 2 of an IC package 1 to be checked. The spot image is received by a 4-split image receiving element 11 through a light receiving lens 10. It is checked in which of the four image receiving parts the image receiving position of the spot is located, or whether the position is formed over a plurality of the image receiving parts. Thus, the amounts of the received light at the image receiving parts are compared, and the position, where the spot image is received, is detected. The data of the image received position are compared with the data of a standard position. Thus, the bending of the lead wire 2 is inspected.

28. 发明专利

JPS63274803A OPTICAL CALIPERS FOR TROLLEY LINE MEASUREMENT 失效
公开(公告)号：JPS63274803A
公开(公告)日：1988-11-11
申请号：JP10843087
申请日：1987-05-01
申请人： HITACHI ELECTR ENG
发明人： UDONO MITSURU , TAKENAKA YASUO
IPC分类号： G01B11/02
摘要： PURPOSE:To easily measure the remaining diameter of a trolley line by providing plural optical fibers for light reception to a light receiver and making a light beam from an optical fiber for light projection incident on one optical fiber for light reception at a position corresponding to the remaining diameter of the trolley line and detecting the light beam. CONSTITUTION:The horizontal side 3b of an L-shaped support is hooked on the overhead trolley line 1 and a rope 7 is drawn by the hand; and then a pulley 6 and a pinion 5 rotate and a rack 5b which engages the pinion elevates a mover 4. Here, the plane of a contact part 4b contacts the slide surface of the trolley wire 1 to grip the trolley line 1 with the horizontal side 3b. In this state, the light beam projected horizontally by the optical fiber 4d for light projection is received by one of the optical fibers 8a for light reception and then processor detects its array position to obtain the remaining diameter of the trolley line 1 immediately.

29. 发明专利

JPS62298710A DATA POSITION CORRECTING CIRCUIT OF ELECTRIC DETECTING-MEASURING VEHICLE 失效
公开(公告)号：JPS62298710A
公开(公告)日：1987-12-25
申请号：JP14247986
申请日：1986-06-18
申请人： HITACHI ELECTR ENG
发明人： OGAWA HIROSHI , TAKENAKA YASUO
IPC分类号： G01B21/00
摘要： PURPOSE:To align data positions of both measuring sensors, by retarding data of a measuring sensor located in front in the direction of locomotion of a detecting-measuring vehicle by a length of distance from a measuring sensor located in the rear. CONSTITUTION:Measuring data of the No.1 measuring sensor group 2-1 located in a position 'A' are introduced into the No.1 delaying circuit 7a and when the group 2-1 is located in front of the No.2 measuring sensor group 5 located in the a position 'B' by the locomotion direction of a detecting measuring vehicle 1, these data are issued out with a delay of length of distance 'n' meters. When the group 2-1 is located in the rear, no delay is caused by a contact point of on up-down switch 9. When measuring data of the group 5 are introduced into the No.2 delay circuit 7b and located in front of the group 2-1, a delay of 'n' meters is caused and when located in the rear they are issued as they are.

30. 发明专利

JPS62188937A TROLLEY WIRE ABNORMAL POINT DETECTION METHOD AND APPARATUS 失效
公开(公告)号：JPS62188937A
公开(公告)日：1987-08-18
申请号：JP3055086
申请日：1986-02-14
申请人： HITACHI ELECTR ENG
发明人： ITO MASAYUKI , TAKENAKA YASUO
IPC分类号： G01N19/08 , B60L3/00 , B61L23/00
摘要： PURPOSE:To enable the obtaining of information on acceleration irrelevant to running speed for various abnormal points of a trolley wire, by analyzing an impact force and a vibration force working on a pantograph due to abnormal points of the trolley wire. CONSTITUTION:At a part of a trolley wire 3 has an abnormal point 3-1 and a pantograph 4 passes the point. An accelerometer 5 is mounted at a contact part 4-1 of the pantograph. The pantograph 4 advances in the direction of the arrow. The time t1 and the speed v1 are given at the start point p of the abnormal point 3-1 and change to the time t2 and the speed v2 at the end point (q) with variations in the momentum at the abnormal point 3-1. Here, supposing that the abnormal point 3-1 is short and the pantograph 4 hit it. The accompanying of a corresponding external force, namely, acceleration takes place during the period. At this point, the acceleration is proportional to the square of the running speed v. Thus, the impact on the pantograph at the abnormal point and the pattern of the vibration force can be determined correctly by dividing an output voltage of the accelerometer 5 by the square value of the speed v.

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