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21. 发明专利

JPH02301216A PHOTOELECTRIC SWITCH 失效
公开(公告)号：JPH02301216A
公开(公告)日：1990-12-13
申请号：JP12194289
申请日：1989-05-15
申请人： OMRON TATEISI ELECTRONICS CO
发明人： UEDA MASAZUMI , IMAI SEIJI , TAMINO SHINYA
IPC分类号： H03K17/78 , G01S17/02
摘要： PURPOSE:To place an operation display light and a stable operation display light to a photoelectric detection section without increasing number of signal lines by superimposing a signal for driving the operation display light and the stable operation display onto a signal on a signal path for driving a light emitting element and separating the signal with the polarity of the signal and its level. CONSTITUTION:An operation display LED 23 and a stable operation display LED 24 of opposite polarity connects in parallel with a light emitting element 13 in a photoelectric detection section and a Zener diode 314 connects in series to the LED 24. Through the constitution above, since the polarity of a light emitting element drive signal is opposite to the signal of the display LEDs 23, 24, they are not lighted. When the display driving signal reaches a level, only the LED 23 is lighted and the level of the display drive signal is further increased and exceeds the Zener voltage of the Zener diode 314, then both the LEDs 23, 24 are lighted. Since the signal is separated depending on the polarity and the level, the placing of the operation display light and the stable operation display light to the photoelectric detection section is attained without increasing the signal line number.

22. 发明专利

JPH02102479A ULTRASONIC SENSOR 失效
公开(公告)号：JPH02102479A
公开(公告)日：1990-04-16
申请号：JP25440588
申请日：1988-10-08
申请人： OMRON TATEISI ELECTRONICS CO
发明人： TESHIGAWARA MASAKI , YAMAGUCHI YUKIO , UEDA MASAZUMI , SHIBATA FUMIO
IPC分类号： G01S15/04 , G01B17/00 , G01B17/08
摘要： PURPOSE:To decide the surface shape of an article which as a slanting surface by providing a pulse generating circuit, a transmitter, and a receiver. CONSTITUTION:The vibrator of the transmitter 3 is vibrated with pulses for transmission generated by the pulse generating circuit 1 to oscillate and send an ultrasonic wave from a horn and the ultrasonic wave is reflected by the article B and received by the horn of the receiver 4 to vibrate the vibrator, thereby outputting the ultrasonic wave. The reflected wave signal output is amplified 6 and supplied to a reflection time difference measuring circuit 7, which synchronizes with the pulse signal supplied from the circuit 1 according to the reflected wave signal supplied from the circuit 7. Then a signal intensity decision circuit 8 compares the intensity of the reflected wave signal supplied from the receiver 4 with a set reference value to generate and output a comparison level signal S2. Further, the signal from the circuit 7 and the comparison level signal from the circuit 8 are supplied to output the reflected time difference signal as it is when the comparison level signal is at H or hold and output the signal output in the last H state as a shape signal S3 when the signal is at L.

23. 发明专利

JPH07154226A PROXIMITY SWITCH 失效
公开(公告)号：JPH07154226A
公开(公告)日：1995-06-16
申请号：JP32127493
申请日：1993-11-26
申请人： OMRON TATEISI ELECTRONICS CO
发明人： SASAKI KAZUO , TAMINO SHINYA , UEDA MASAZUMI , OTSUKA TAKASHI
IPC分类号： H01H36/00 , H03K17/945 , H03K17/95
摘要： PURPOSE:To set the sensitivity without use of a variable resistor and a complicated structure by changing a feedback current of an oscillation circuit based on a switch signal from a switch control means. CONSTITUTION:An oscillation circuit having diodes D1, D2 and transistors(TRs) Q1-Q4 is connected to a parallel resonance circuit 1 and a resistor group comprising resistors RA, RB1, RB2...RBn is connected in parallel with a position for a sensitivity adjustment resistor of the oscillation circuit. The resistors RB1, RB2...RBn are respectively connected in series with switches SW1, SW2,...SWn as changeover switch circuits, each of the switches Sw1-SWn is switched by a switch signal from a microcomputer and the combined resistance of the parallel connection resistors is used for the sensitivity adjustment. Thus, the sensitivity of the oscillation circuit is adjusted under the control of the microcomputer. Then the feedback current is switched by changing the combined resistance of the sensitivity adjustment circuit.

24. 发明专利

JPH04339292A HUMAN BODY DETECTOR 失效
公开(公告)号：JPH04339292A
公开(公告)日：1992-11-26
申请号：JP14104491
申请日：1991-05-15
申请人： OMRON TATEISI ELECTRONICS CO
发明人： YAMAMOTO SABURO , FUJISAKI AKIYOSHI , UEDA MASAZUMI , MATSUI KENJI
IPC分类号： G01J5/10 , G01J5/12 , G01V8/20 , G08B13/19
摘要： PURPOSE:To detect just a man staying in a detection area, without detecting a man passing through the area. CONSTITUTION:The first infra-red detection element 1 that detects absolute value of radiation temperature irradiated from a man or goods in a detection range, and the second infra-red detection element 4 that detects temperature change thereof, are provided to the detector of this invention. Those inputs are input to a CPU 7 through an A/D converter 3 and a band pass filter 6. Then, when the first and the second infra-red elements 1 and 2 obtain any output, a human body is judged to come, and when the output is continuously obtained for longer than a time that is predetermined by a dip switch 8, the CPU 7 determines that a man stays in the range. Otherwise, when the output is lost within the predetermined time, the CPU 7 determines that a man is passing through the range.

25. 发明专利

JPH04339291A HUMAN BODY DETECTOR 失效
公开(公告)号：JPH04339291A
公开(公告)日：1992-11-26
申请号：JP14104391
申请日：1991-05-15
申请人： OMRON TATEISI ELECTRONICS CO
发明人： YAMAMOTO SABURO , FUJISAKI AKIYOSHI , UEDA MASAZUMI , MATSUI KENJI
IPC分类号： G01J5/10 , G01J5/12 , G01V8/20 , G08B13/19
摘要： PURPOSE:To unfailingly detect staying of a human body in a detection area without being affected by any heart source body other than a human body. CONSTITUTION:The first infrared detection element 1 that detects absolute value of radiation temperature irradiated from a man and goods within a detection range, and the second infrared detection element 4 that detects temperature change thereof, are provided to the detector of this invention. Outputs therefrom are input to a CPU 7 through an A/D converter 3 and a band pass filter 6. And also, when the first and the second infrared detection elements detects any signal, human existence is to be detected and, when not detected, non human existence is to be detected. In case that the existence or the non-existence is not detected at all, after the predetermined time being set forth by a dip switch 8, standard voltage is automatically adjusted so that output of the first infrared detection element 1 may show the circumferential temperature of non human existence case, in order to detect existence of staying of human body unfailingly.

26. 发明专利

JPH04225190A HUMAN ORGANISM DETECTOR 失效
公开(公告)号：JPH04225190A
公开(公告)日：1992-08-14
申请号：JP41659990
申请日：1990-12-27
申请人： OMRON TATEISI ELECTRONICS CO
发明人： UEDA MASAZUMI , YAMAMOTO SABURO , FUJISAKI AKIYOSHI , MATSUI KENJI
IPC分类号： G01J1/42 , G01J5/10 , G01V8/20
摘要： PURPOSE:To remove the influence of a drift caused by temperature variation by the use of an infrared detection element having a direct current characteristic. CONSTITUTION:Detection areas are divided into a plurality of neighboring partial areas A1-A3 and respective areas are detected by a plurality of infrared detection elements 1-3 to wholly add the difference of outputs from each element. The presence of a human organism can be detected by removing the influence of temperature variation and discriminating the added output in accordance with a specified threshold.

27. 发明专利

JPH02300687A PHOTOELECTRIC SWITCH 失效
公开(公告)号：JPH02300687A
公开(公告)日：1990-12-12
申请号：JP12194189
申请日：1989-05-15
申请人： OMRON TATEISI ELECTRONICS CO
发明人： UEDA MASAZUMI , IMAI SEIJI
IPC分类号： G01V8/20
摘要： PURPOSE:To preclude malfunction due to mutual interference between photoelectric switches by varying the driving period of a light projecting element according to random pulses. CONSTITUTION:A reference clock generating circuit 41 supplies a signal (a) of constant frequency to a counter circuit 42, which supplies its (n)-bit output signal bj (j=1, 2... n) to a trigger signal generating circuit 46 and a reset signal generating circuit 43 through (n) output terminals. Further, a random pulse generator 44 generates (m) pulse signals ai (i=1, 2... m) at random and supplies them to a latch circuit 45, which latches and supplies the signals ai to the circuit 46 at the input timing of a reset signal (d). Then the circuit 46 compares the signals ai and bj at binary level and outputs a trigger signal (c) to a pulse generator 47 only when they match each other. Thus, an oscillation circuit 11 is constituted and the light projection period of the light projecting element is varied at random to prevent malfunction due to the light projection of other photoelectric switches.

28. 发明专利

JPH02171683A ULTRASONIC SENSOR 失效
公开(公告)号：JPH02171683A
公开(公告)日：1990-07-03
申请号：JP32723288
申请日：1988-12-23
申请人： OMRON TATEISI ELECTRONICS CO
发明人： SHIBATA FUMIO , TESHIGAHARA MASAKI , YAMAGUCHI YUKIO , UEDA MASAZUMI
IPC分类号： G01S15/34
摘要： PURPOSE:To enable accurate measurement of a distance to an object, etc. in a wide temperature range by providing a signal generating unit with a compensation means which compensates a prescribed temperature characteristic for a frequency shift width of frequency modulation. CONSTITUTION:A triangular wave generating circuit 3 is constructed of a temperature compensation unit 11, a square wave processing unit 12 and an integrator 13. The temperature compensation unit 11 contains a temperature transducer 14 outputting a current It proportional to a temperature as a temperature- reducing element and, besides, comprises two operational amplifiers 15 and 16 and resistors R1, R2, R3 and R4. The integrator 13 is comprises an operational amplifier 18, a capacitor C2 and resistors R9 to R11. An output of the operational amplifier is inputted to a V/F conversion circuit 4 and a waveform of a frequency varying in the shape of a triangle is obtained. By giving a prescribed temperature characteristic to a frequency shift width of frequency modulation in this way, the temperature characteristic of a propagation speed of an ultrasonic wave can be compensated, and thus a distance to an object, etc. can be measured accurately in a wide temperature range.

29. 发明专利

JPH01274088A CROSS BEAM TYPE ULTRASONIC WAVE SENSOR 失效
公开(公告)号：JPH01274088A
公开(公告)日：1989-11-01
申请号：JP10493988
申请日：1988-04-27
申请人： OMRON TATEISI ELECTRONICS CO
发明人： YAMAGUCHI YUKIO , TESHIGAHARA MASAKI , SHIBATA FUMIO , UEDA MASAZUMI
IPC分类号： H04R17/00 , G01S7/52 , G01S7/521
摘要： PURPOSE:To decrease the manufacturing cost of a holder, by constituting a central partitioning wall which separates a transmitting ultrasonic wave vibrator and a receiving ultrasonic wave vibrator with a pair of parallel inner walls. CONSTITUTION:A holder 12 is attached to the opening part in the front surface of a case 10. A central partitioning wall 13 comprising a pair of parallel inner walls 13a and 13a is formed at the central part of the holder 12 so as to separate transmitting and receiving ultrasonic wave vibrators 20 and 20. Outer walls 14 and 14 having specified slant angles are formed so as to face the inner walls 13a and 13a. The outer wall 14 is formed so as to form a pair with the holder 12. Vibrator housing parts 15 and 15 are formed between the inner walls 13a and 13a and the outer walls 14 and 14. The vibrators 20 and 20 are compressed and coupled into bushes 22 and 22. The bushes 22 and 22 are mounted in the housing parts 15 and 15 in the holder 12. Then, the vibrators 20 and 20 are automatically mounted into the holder 12 at a specified angle with projections 27a and 27b of the bushes 22 and 22. Since the holder 12 can be molded by molding means of trimming dies in the two directions, the holder 12 can be manufactured at a low cost.

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