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41. 发明专利

JPH07218254A OCEANOGRAPHIC METER 失效
公开(公告)号：JPH07218254A
公开(公告)日：1995-08-18
申请号：JP8592494
申请日：1994-03-31
申请人： UNYUSHO KOWAN GIJUTSU KENKYUSH , KAIYO CHIYOUSA KYOKAI , KAIJO KK
发明人： TAKAYAMA TOMOJI , NAGAI NORIHIKO , HASHIMOTO NORIAKI , TAKAHASHI TOMOHARU , SASAKI HIROSHI , ITO YOSHIKI , ISOBE NORIO
IPC分类号： G01C13/00 , G01S15/50 , G01S15/58 , G01W1/08
摘要： PURPOSE:To observe general oceanographic phenomena unified and stably by measuring sea surface fluctuation and the velocity fluctuation of water particle motion at a specific depth position with a single complex function sensor and obtaining a plurality of wave motion and flow data simultaneously. CONSTITUTION:A transmission and reception circuit for velocity measurement 12 generates tone burst wave in resonance with oscillation pulses produced at trigger pulses Tr2 from a flow velocity fluctuation measuring circuit 2B, excites a plurality of vibrators for velocity measurement in a transmitter/receptor to send ultrasonic wave in water, and sends the received Doppler signals to a measuring part 2 as water particle scattered reception signals at the specific depth position. On the other hand, a transmission and reception circuit for sea water level measurement 11 excites a vibrator for sea water level measurement in a transmitter/receptor 10 with oscillation signals produced with trigger pulses Tr3 from a sea water level fluctuation measuring circuit 2A and multiplies the received sea water level signal with water pressure signal and send to a measuring part 2. The measuring part 2 sends the sea water level and flow fluctuation calculated with those signals to a calculation part 3 and the calculation part 3 obtains wave direction spectrum, and height, period and direction of the wave.

42. 实用新型

JPH0736087U 失效
公开(公告)号：JPH0736087U
公开(公告)日：1995-07-04
申请号：JP7294093
申请日：1993-12-20
IPC分类号： G01S15/04 , G01S15/10 , G01S15/50

43. 发明专利

JPH07159533A APPROACH DETECTING DEVICE 失效
公开(公告)号：JPH07159533A
公开(公告)日：1995-06-23
申请号：JP30641293
申请日：1993-12-07
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： KAMIKAWA YUTAKA
IPC分类号： G01S7/03 , G01S15/50 , G01S15/74 , G01S17/74
摘要： PURPOSE:To provide an approach detecting device which, according to the time from transmission of intermittent ultrasonic codes to reception of an individual identification code at a responding sub-station, detects that the corresponding individual approaches and then outputs the individual identification code. CONSTITUTION:A sub-station 16 transmits a particular individual identification code when receiving an ultrasonic signal intermittently emitting a fixed code and coming from a main station 15. At the main station 15, the time difference from transmission of the code to the reception of the individual identification code, the individual identification code, and the order of generation of codes responded by the sub-station 16 are stored in memory 13. If someone approaches and goes into the range below the threshold of approach distance or approaches at a speed greater than the threshold of approaching speed, an individual identification code extractor 14 outputs the corresponding individual identification code.

44. 发明专利

JPH07103995A VEHICLE-MOUNTED SPEED METER 失效
公开(公告)号：JPH07103995A
公开(公告)日：1995-04-21
申请号：JP24719893
申请日：1993-10-01
申请人： AISIN SEIKI
发明人： SATO KAZUO , SAKAMOTO MITSUHIRO , NAKAHARA NAOJI , KUZUTANI KEIJI
IPC分类号： G01P5/00 , G01S15/50 , G01S15/60
摘要： PURPOSE:To detect a real speed of a vehicle with high reliability by a method wherein a vehicle speed error based on the variation of a sound wave-propagation passage due to an air flow generated below the vehicle along the traveling thereof, variation of an emission/ reception angle and an emission/reception directivity, is corrected. CONSTITUTION:A reflection wave from a road face that is received by an ultrasonic wave receiver attached on a bottom face of a vehicle with a prescribed depression angle is amplified and only about 200+ or -50kHz of the signal is taken therefrom to be further amplified. After that, it is binarized to be inputted to a PLL circuit for frequency detection and the frequency of the reflection wave is detected thereby obtaining a vehicle speed. However, when the vehicle speed is grate, a propagation passage of the sound wave is varied due to an air flow along the traveling of the vehicle generated below the vehicle so that the detected speed is affected thereby and the output level is lowered by being affected by an emission/ reception directivity and an emission/reception angle corresponding to the vehicle speed. Therefore, a vehicle speed error based on the affection is predicted such that an actually measured vehicle speed V1, a real vehicle speed V0 and the relationship therebetween are stored in a memory to be associated with each other. The real vehicle speed V0 is selected from the actually measured vehicle speed V1, thereby obtaining the accurate real vehicle speed V1.

45. 发明专利

JPH0755932A ON-VEHICLE ULTRASONIC MEASURING INSTRUMENT 失效
公开(公告)号：JPH0755932A
公开(公告)日：1995-03-03
申请号：JP20348593
申请日：1993-08-17
申请人： AISIN SEIKI
发明人： SAKAMOTO MITSUHIRO , KUZUTANI KEIJI , NAKAHARA NAOJI , SATO KAZUO
IPC分类号： G01S15/50
摘要： PURPOSE:To accurately detect target reflected waves even when such measuring conditions as the height of an ultrasonic transmitter-receiver from the ground, surface condition of roads, etc., vary. CONSTITUTION:A rear ultrasonic transmitter-receiver TRR and bottom ultrasonic transmitter-receiver TRD are integrally housed in a housing B and the speed V of a vehicle 100 is calculated form the speed of the vehicle 100 in the oblique direction obtained from the transmitter-receiver TRR and speed of the vehicle 100 in the vertical direction. Therefore, a highly reliable speed can be obtained, because the influence of the vertical movement of the vehicle 100 by bounding, etc., on the speed in the oblique direction as an error can be prevented.

46. 发明专利

JPH0715484B2 失效
公开(公告)号：JPH0715484B2
公开(公告)日：1995-02-22
申请号：JP26483586
申请日：1986-11-06
IPC分类号： G01P5/00 , G01S15/50

47. 发明专利

JPH06342068A ULTRASONIC MEASURING APPARATUS FOR VEHICLE-MOUNTING 失效
公开(公告)号：JPH06342068A
公开(公告)日：1994-12-13
申请号：JP13174593
申请日：1993-06-02
申请人： AISIN SEIKI
发明人： SATO KAZUO , SAKAMOTO MITSUHIRO , KUZUTANI KEIJI , NAKAHARA NAOJI , AOKI YASUYUKI
IPC分类号： B60G17/00 , B60G17/019 , G01S7/52 , G01S15/50
摘要： PURPOSE:To detect the speed of a vehicle with good accuracy by a method wherein ultrasonic waves are sent to a wheel at a prescribed depression inclination, their reflected waves are received and the rotational speed of the wheel is operated on the basis of a Doppler frequency. CONSTITUTION:An ultrisonic-wave transmitter-receiver TR is mounted inside the wheel house of a vehicle 100 in such a way that it is in parallel by D (m) in a direction opposite to the advance direction of the vehicle 100 and that its angle of depression phi is set at 45 deg. with reference to its horizontal plane. Then, the wave transmitter-receiver TR transmits ultrasonic oscillations at 200kHz to a tread part T on a tire T in a prescribed beam width, and it receives their reflected waves. A wheel-speed operation means operates the rotational speed 0. of a wheel on the basis of the Doppler frequency of the wave transmitter-receiver TR. Then, the speed operation means operates a vehicle speed V on the basis of the rotational speed of the wheel. When the vehicle speed V is V./[1-(k)] when a tire slip rate is designated as (k). Since the slip rate can be approximated to (k) 0 in cases other than 4 braking operation, V 'g 0.. In addition, when the vehicle speed V is integrated and differentiated, a distance and an acceleration can be obtained.

48. 发明专利

JPH06222140A ULTRASONIC SENSOR 失效
公开(公告)号：JPH06222140A
公开(公告)日：1994-08-12
申请号：JP1020093
申请日：1993-01-25
申请人： MATSUSHITA ELECTRIC WORKS LTD
发明人： KAWAHARA KAZUKO , KATAYAMA SUSUMU , TAKAGI TOSHIMASA
IPC分类号： G01S15/04 , G01S15/50
摘要： PURPOSE:To provide an ultrasonic sensor which is so excellent in reliability concerning detection of moving objects that even if there are air flows or the like with temperature differences inside a supervisory space, malfunctioning such as outputting a signal indicating detection of a moving object will not be caused by the air flows. CONSTITUTION:In an ultrasonic sensor, an ultrasonic wave transmitted from a transmitter 3 and reflected from an object present in a supervisory space is received by a receiver 4 and then predetermined unit values are sequentially integrated together through addition or subtraction according to whether the Doppler component of the input signal of the receiver 4 is positive or negative, and when this integral value exceeds a predetermined threshold, a signal that indicates detection of the moving object is outputted. An integrating circuit 7 performs integration with values greater than the predetermined unit values in executing subtraction when the integral value is positive or addition when the integral value is negative.

49. 发明专利

JPH06222139A ULTRASONIC SENSOR 失效
公开(公告)号：JPH06222139A
公开(公告)日：1994-08-12
申请号：JP898593
申请日：1993-01-22
申请人： MATSUSHITA ELECTRIC WORKS LTD
发明人： TAKAGI TOSHIMASA
IPC分类号： G01S15/04 , G01S15/50
摘要： PURPOSE:To quickly detect a moving object by retarding the timing of switching from a first to second detection mode when an integral value obtained in the first detection mode exceeds a predetermined reference value. CONSTITUTION:A first and second detection modes are switched from one to the other according to a switching signal from a timer circuit 10. In the first detection mode, a Doppler signal is detected by a detecting circuit 8 and subjected to an integration process with a predetermined unit value by a moving time integrating circuit 16. In the second detection mode, the pattern data of output signals outputted from a receiver 4 is written on a storage circuit 17 or 18 and renewed. When a moving object enters a predetermined supervisory space, the value of the movement integrated time in the first detection mode is increased. When the integral value exceeds a reference value, a switching control circuit 19 controls the circuit 10 to stop the circuit 10 from outputting switching signals to a transmission method determining circuit 13.

50. 发明专利

JPH06194446A VEHICLE-MOUNTED ULTRASONIC DETECTOR 失效
公开(公告)号：JPH06194446A
公开(公告)日：1994-07-15
申请号：JP34219392
申请日：1992-12-22
申请人： MATSUSHITA ELECTRIC WORKS LTD
发明人： AZUMA NAOYA , SASAKI HAJIME
IPC分类号： G01S15/87 , B60W30/00 , G01S15/50 , G01S15/93 , G08G1/16
摘要： PURPOSE:To give an alarm display to a driver when vehicle speed is equal to or smaller than a specific value and to stop it when the vehicle speed exceeds the specific value and at the same time to calculate and display the traveling distance and the traveling direction of a vehicle by calculating the vehicle speed from the Doppler constituent of a reflection signal from an object or a road surface. CONSTITUTION:Ultrasonic detectors 11-14 which are provided at the corner part around a vehicle are controlled by a body circuit 2, transmit ultrasonic pulses according to the wave-transmission signal from the circuit 2, and then receive and amplify the reflection wave from an obstacle or a human body. The output is shaped into a pulse waveform by a comparator 4, is input to input terminals R1-R4 of a CPU 7, and is input to input terminals C1-C4 of the CPU 7 after the pulse wave is counted for 10 wavelengths. After ultrasonic pulses are output, the CPU 7 counts a time T1 until reflection wave pulses are input and then counts a time T2 for 10 wavelengths. When the vehicle speed which is calculated from the time T2 is equal to or less than approximately 10km/hour, an alarm display such as an obstacle and a human body is output. When it is equal to or more than approximately 10km, the display output is turned off and the traveling distance and traveling direction are calculated from the vehicle speed and are displayed.

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