KR20210040482A - Motor absolute position sensor for proportional control for smart farm and sensing method using the same - Google Patents

Motor absolute position sensor for proportional control for smart farm and sensing method using the same Download PDF

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KR20210040482A
KR20210040482A KR1020190122744A KR20190122744A KR20210040482A KR 20210040482 A KR20210040482 A KR 20210040482A KR 1020190122744 A KR1020190122744 A KR 1020190122744A KR 20190122744 A KR20190122744 A KR 20190122744A KR 20210040482 A KR20210040482 A KR 20210040482A
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motor
absolute position
smart farm
code
sensor
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KR1020190122744A
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Korean (ko)
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김현태
안은기
변기식
김구조
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(주)유비엔
경상국립대학교산학협력단
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Publication of KR20210040482A publication Critical patent/KR20210040482A/en

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
    • G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
    • G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
    • G01D5/347—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells using displacement encoding scales
    • G01D5/3473—Circular or rotary encoders
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
    • G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
    • G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
    • G01D5/347—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells using displacement encoding scales
    • G01D5/34776—Absolute encoders with analogue or digital scales
    • G01D5/34792—Absolute encoders with analogue or digital scales with only digital scales or both digital and incremental scales
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
    • G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
    • G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
    • G01D5/347—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells using displacement encoding scales
    • G01D5/34776—Absolute encoders with analogue or digital scales
    • G01D5/34792—Absolute encoders with analogue or digital scales with only digital scales or both digital and incremental scales
    • G01D5/34794—Optical encoders using the Vernier principle, i.e. incorporating two or more tracks having a (n, n+1, ...) relationship
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
    • G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
    • G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
    • G01D5/36—Forming the light into pulses

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  • General Physics & Mathematics (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
  • Optical Transform (AREA)

Abstract

In order to operate the opening and closing of a warmth-keeping cover, a side window of an outer part, a door and the like, which are used in a smart farm or the like, on a position which a user wants, accurate values about the operation direction, total rpm and total rotation angle of a motor are always necessary. However, there has been a limit on the detection of an absolute position from a motor used in a smart farm or the like having a wide operation range. According to the present invention, in order to solve such issue, a motor absolute-position detection sensor (80) is provided. The motor absolute-position detection sensor includes: a rotation absolute-position sensor part comprising a code disc (20) and an infrared light emitting part (30) and a light receiving part (40) reading a code from the code disc; and a motor rpm sensor detecting the rpm of the motor from a capacitance value measured by a distance between a counterpart electrode plate (70) and the code disc (20). Through the above-stated constitution of the present invention, a means for identifying a relative position of a motor within an entire operation range of the opening and closing of a warmth-keeping cover, a side window of an outer part, a door and the like, which are used in a smart farm or the like, is provided, thereby bringing about an effect of detecting and controlling a rotation position of the motor without causing an error.

Description

스마트팜용 비례제어를 위한 모터 절대위치 센서 및 그를 이용한 센싱방법{.}Motor absolute position sensor for proportional control for smart farm and sensing method using the same{.}

본 발명은 스마트팜에 사용되는 측창 개폐기, 도어 개폐기 등에 사용되는 모터의 절대위치를 검출하기 위한 모터의 회전수 또는 위치 검출기술에 관한 것이다.The present invention relates to a rotational speed or position detection technology of a motor for detecting the absolute position of a motor used for a side window opener, a door opener, etc. used in a smart farm.

본 발명 이전의 선행기술로는 8/6 구조를 갖는 4상 스위치드 릴럭턴스 모터의 초기 구동 및 가변속 제어가 가능한 증분형 엔코더의 회전 디스크에 관한 것으로, a, b, c, d 상을 갖는 8/6(고정자 극수/회전자 극수) 구조의 스위치드 릴럭턴스 모터의 구동을 위한 증분형 엔코더의 회전 디스크에 있어서, 기계각 30°의 슬릿이 기계각 60° 주기로 회전 디스크 상에 반복 형성되어 a상의 권선을 여자 시키는 하이 레벨 신호를 발생하기 위한 제 1 코드 패턴(code pattern)(Ea); 제 1 코드 패턴(Ea)과 기계각 15°의 위상차를 갖는 다른 소정 위치에서 기계각 30°의 슬릿이 기계각 60° 주기로 반복 형성되어 b상의 권선을 여자시키는 하이 레벨 신호를 발생하기 위한 제 2 코드 패턴(Eb); 회전 디스크가 1회전할 때마다 1개의 기준펄스 신호가 발생되도록 회전 디스크의 다른 소정 위치에 형성되는 기준펄스 신호용 코드 패턴(PZ)을 포함하는 증분형 엔코더의 회전 디스크를 제공함으로써, 8/6 구조를 갖는 4상 스위치드 릴럭턴스 모터의 초기 구동 및 가변속 제어하는 기술이 개시되어 있다. Prior art prior to the present invention relates to a rotating disk of an incremental encoder capable of initial driving and variable speed control of a 4-phase switched reluctance motor having an 8/6 structure. In a rotating disk of an incremental encoder for driving a switched reluctance motor with a structure of 6 (number of stator poles/number of rotor poles), a slit with a mechanical angle of 30° is repeatedly formed on the rotating disk at a period of 60° of the mechanical angle to form a winding of a phase A first code pattern (Ea) for generating a high level signal that excites the signal; A second code pattern Ea and a second slit having a mechanical angle of 30° at a different predetermined position having a phase difference of 15° from the first code pattern Ea are repeatedly formed at a period of 60° of the mechanical angle to generate a high-level signal that excites the winding of the b phase. Code pattern Eb; 8/6 structure by providing a rotating disk of an incremental encoder including a code pattern (PZ) for a reference pulse signal formed at another predetermined position of the rotating disk so that one reference pulse signal is generated for each rotation of the rotating disk. Disclosed is a technology for initial driving and variable speed control of a four-phase switched reluctance motor having a.

또 다른 선행기술로는 반사판에서 반사되는 빛의 패턴을 반사판의 회전 값 또는 직선 운동값 만큼 수신부에서 검출하여 출력으로 전송함으로써 기존의 엔코더보다 소형화 및 고분해능 구현이 가능한 광원의 반사광을 이용하는 엔코더에 관한 것으로서, 광원의 반사광을 이용하는 엔코더는 빛을 조사하는 송신부와, 상기 송신부에서 조사된 빛이 원운동하는 일면을 통해 반사되는 회전슬릿과, 상기 회전슬릿을 통해 반사된 상기 송신부의 빛이 수신되는 수신부와, 상기 수신부를 통해 수신되는 상기 송신부의 빛의 패턴을 상기 수신부를 통해 이전에 수신된 상기 송신부의 빛의 패턴과 비교하여 상기 회전슬릿의 이동방향 및 이동거리를 결정하는 검출부를 포함하여 구성되며, 상기 검출부는 상기 회전축에 동력을 제공하는 모터의 정회전의 값 또는 역회전의 값, 상기 모터 정지 시 절대 위치값, 상기 모터 재가동 시 이전의 취치 정보값 중 둘 이상의 데이터의 값을 한꺼번에 결정하여 상기 시리얼 데이터 포트에 출력값으로 제공하는 기술이 개시되어 있다.Another prior art relates to an encoder that uses the reflected light of a light source capable of miniaturization and higher resolution than conventional encoders by detecting the pattern of light reflected from the reflector as much as the rotational value or linear motion value of the reflector and transmitting it as an output. , The encoder using the reflected light of the light source includes a transmitting unit that irradiates light, a rotation slit that is reflected through one surface of the circular motion of the light irradiated from the transmission unit, and a receiving unit that receives the light of the transmission unit reflected through the rotation slit. And a detector configured to determine a moving direction and a moving distance of the rotating slit by comparing the light pattern of the transmitting unit received through the receiving unit with the light pattern of the transmitting unit previously received through the receiving unit, The detection unit determines at once a value of two or more of a forward rotation value or a reverse rotation value of a motor providing power to the rotation shaft, an absolute position value when the motor is stopped, and a previous take-up information value when the motor is restarted. A technology for providing an output value to a serial data port is disclosed.

등록특허공보 10-0805298Registered Patent Publication 10-0805298 등록특허공보 10-1417654Registered Patent Publication 10-1417654

스마트팜 등에서 사용하는 보온덮개, 외부의 측창, 도어개폐 등의 동작을 사용자가 원하는 위치로 동작시키기 위해서는 모터의 동작방향, 총 회전수, 총 회전각도에 대한 정확한 값이 항상 필요하다. In order to operate the thermal insulation cover used in the smart farm, external side windows, door opening and closing, etc. to the user's desired position, accurate values for the motor's operating direction, total number of rotations, and total rotation angle are always required.

현재까지의 절대위치 엔코더 등으로 일정범위 내에서의 절대위치를 알 수 있는 수단은 있었으나, 동작범위 전체에서 모터의 절대위치를 제공하는 엔코더는 없었다.Until now, there has been a means to know the absolute position within a certain range with an absolute position encoder, but there is no encoder that provides the absolute position of the motor in the entire operating range.

본 발명은 상기와 같은 문제를 해결하기 위하여 하기의 모터 절대위치검출센서를 과제해결수단으로 제공한다. The present invention provides the following motor absolute position detection sensor as a problem solving means in order to solve the above problems.

본 발명의 모터 절대위치검출센서(80)는 코드디스크(20); 및 The motor absolute position detection sensor 80 of the present invention includes a code disk 20; And

코드디스크의 코드를 읽어내는 적외선발광부(30)와 수광부(40);로 구성되는 회전 절대위치센서부와 상대전극판(70)과 상기 코드디스크(20) 사이의 거리에 의하여 측정되는 캐패시턴스 값으로부터 모터의 회전수를 검출하는 모터회전수센서를 구비하는 것을 특징으로 하는 절대위치검출센서를 제공한다.A capacitance value measured by the distance between the rotational absolute position sensor unit and the counter electrode plate 70 and the code disk 20 consisting of an infrared light emitting unit 30 and a light receiving unit 40 for reading the code of the code disk. It provides an absolute position detection sensor, characterized in that it comprises a motor rotation speed sensor for detecting the rotation speed of the motor from.

또한, 상기 회전 절대위치센서의 측정값과 모터회전수센서의 측정값은 시리얼통신 또는 I2C 통신으로 전송하는 것을 특징으로 하는 스마트팜용 비례제어를 위한 모터 절대위치 센서를 제공한다. In addition, a motor absolute position sensor for proportional control for a smart farm, characterized in that the measured value of the rotation absolute position sensor and the measured value of the motor rotation speed sensor are transmitted through serial communication or I2C communication, is provided.

또한, 상기 코드디스크(20)는 마스터 트랙(50), 버니어 트랙(52), 세그먼트 트랙(54) 및 디지털 트랙(60)으로 구성되는 것을 특징으로 하는 스마트팜용 비례제어를 위한 모터 절대위치 센서를 제공한다. In addition, the code disk 20 includes a motor absolute position sensor for proportional control for a smart farm, characterized in that it is composed of a master track 50, a vernier track 52, a segment track 54, and a digital track 60. to provide.

또한, 상기 코드디스크(20)의 코드는 검은색과 희색 패턴으로 구성되는 것을 특징으로 하는 스마트팜용 비례제어를 위한 모터 스마트팜용 비례제어를 위한 모터 절대위치 센서를 제공한다. In addition, the code of the code disk 20 provides a motor for proportional control for a smart farm, characterized in that the code is composed of a black and white pattern, an absolute position sensor for a motor for proportional control for a smart farm.

또한, 상기 코드디스크는 회전에 의하여 전방과 후방으로 움직이도록 나사산이 있는 이송수단으로 구성된다. In addition, the code disk is composed of a transfer means having a thread so as to move forward and backward by rotation.

이동거리는 계수하고자하는 모터회전수에 따라 가변가능하며, 나사산과 나사산 사이의 거리와 코드디스크의 지름을 조절함으로써 1 회전 당 변화되는 정전용량을 설정하고 이를 이용하여 모터의 회전수를 측정가능하다.The moving distance can be varied according to the number of motor revolutions to be counted, and by adjusting the distance between the thread and the thread and the diameter of the cord disk, it is possible to set the capacitance that changes per revolution and use this to measure the number of revolutions of the motor.

본 발명은 상기와 같은 구성에 의하여 스마트팜 등에 사용되는 보온덮개, 외부의 측창, 도어개폐 등의 전 동작범위에서 모터의 절대위치를 알 수 있는 수단을 제공함으로써, 오류 없이 모터의 회전위치를 검출하여 제어할 수 있는 효과가 있다.The present invention detects the rotational position of the motor without error by providing a means to know the absolute position of the motor in the entire operating range, such as a thermal insulation cover used for a smart farm, an external side window, and a door opening and closing according to the configuration as described above. There is an effect that can be controlled.

도 1은 본 발명의 코드 디스크 이다.
도 2은 본 발명의 적외선발광부와 수광부를 이용하여 코드디스크의 코드를 읽어내는 도면이다.
도 3은 본 발명의 코드 디스크가 회전에 의하여 전후방으로 움직이며 정전용량을 변화시키는 구성이다.1 is a code disk of the present invention.
2 is a diagram for reading a code of a code disk using an infrared light emitting unit and a light receiving unit of the present invention.
3 is a configuration in which the code disk of the present invention moves forward and backward by rotation and changes the capacitance.

본 발명은 스마트팜을 포함하는 온실에 사용되는 재배환경 자동화 기술에 관한 것으로 더욱 자세하게는 모터의 위치제어 기술에 관한 것이다. The present invention relates to a technology for automating a cultivation environment used in a greenhouse including a smart farm, and more particularly, to a technology for controlling a position of a motor.

현재 스마트팜에 사용하는 모터 제어기술은 리미트스위치와 동작 시간제어가 일반적이다. 스마트팜이라고는 해도 야외 또는 온실에서 설치되어 식물 또는 동물의 사육환경을 제어하기 때문에 공장이나 사무실과는 달리 모터제어환경이 좋지는 않다. 따라서 정밀한 제어보다는 확실한 제어가 필요한데, 이 또한 어려운 실정이다. Currently, limit switches and operation time control are common as motor control technologies used in smart farms. Even a smart farm is installed outdoors or in a greenhouse to control the breeding environment of plants or animals, so unlike factories or offices, the motor control environment is not good. Therefore, reliable control is required rather than precise control, which is also difficult.

측창의 개폐, 보온덮개의 개폐, 출입구의 자동 개폐 등은 스마트팜의 환경제어를 위하여 반드시 필요한 기술이다. 그러나 현재는 동작신호를 주고, 설정된 동작시간이 경과하면 정지하거나, 동작신호를 주고 리미트스위치에서 신호가 들어오면 정지하는 등의 방식을 사용하고 있다. Opening and closing of side windows, opening and closing of the thermal insulation cover, and automatic opening and closing of doorways are essential technologies for environmental control of smart farms. However, at present, an operation signal is given, and when the set operation time elapses, it stops, or when an operation signal is given and a signal comes in from a limit switch, a method such as stopping is used.

이렇게 피드백 없는 제어를 사용하는 이유는 열악한 동작환경과 저가의 제어방법을 사용하고 있기 때문이다. 한편, 엔코더가 달려있는 모터를 이용한 제어를 하더라도 보온커튼 등의 동작범위가 넓어 모터의 회전수가 많아 절대위치를 저장할 수 없는 기술적인 문제가 있는 것도 사실이다. The reason for using this feedback-free control is that it uses a poor operating environment and a low-cost control method. On the other hand, it is also true that even if control is performed using a motor equipped with an encoder, there is a technical problem in that the absolute position cannot be saved due to the large number of rotations of the motor due to the wide operating range of the thermal insulation curtain.

이렇기 때문에 보온커튼의 부분 열림 제어나, 부분 닫힘 제어는 수동으로 하고 있는 실정이다. For this reason, the partial opening control and partial closing control of the thermal insulation curtain are performed manually.

본 발명은 이러한 문제를 2가지 기술을 조합하여 해결하고자 한다. 첫 번째 기술은 코드가 그러진 코드 디스크를 이용하여 모터의 1회전 당 절대위치를 검출하고, 모터의 1회전당 상기 코드 디스크가 전후 방향으로 움직이는 것을 측정하여 모터의 원점으로부터의 회전수를 검출하는 것이다. The present invention aims to solve this problem by combining two techniques. The first technique is to detect the absolute position per rotation of the motor using a code disk with a code, and to detect the number of rotations from the origin of the motor by measuring the movement of the code disk in the forward and backward directions per rotation of the motor. .

이를 위하여 도1에 도시된 바와 같은 코드 디스크를 사용하고, 도2에 도시된 것과 같은 적외선송신부와 수신부를 이용하여 모터의 절대위치를 검출한다. To this end, a code disk as shown in Fig. 1 is used, and the absolute position of the motor is detected using an infrared transmitting unit and a receiving unit as shown in Fig. 2.

또한 본 발명은 모터의 회전수 검출을 위하여, 모터의 회전에 의하여 상기 코드 디스크가 전후 방향으로 움직이고, 상대전극판과의 거리에 의하여 변화되는 정전용량을 측정하여 원점으로부터 모터의 절대 회전수를 측정할 수 있다. In addition, in order to detect the number of rotations of the motor, the code disk moves in the forward and backward direction by the rotation of the motor, and measures the capacitance changed by the distance from the counter electrode plate to measure the absolute number of rotations of the motor from the origin. can do.

상기 모터의 회전수 측정은 정전용량을 측정하는 방법 이외에 리니어엔코더, 또는 IR 거리측정부를 이용할 수도 있다. In addition to measuring the capacitance, a linear encoder or an IR distance measuring unit may be used to measure the number of rotations of the motor.

이러한 구성에 의하면 전원을 껐다 켠 후에도, 모터의 절대위치를 측정할 수 있고 이러한 구성에 의하여 모터의 위치 피드백제어가 가능함은 물론이다. According to this configuration, even after the power is turned off and on, the absolute position of the motor can be measured, and by this configuration, the position feedback control of the motor is possible.

기존에 구현하기 어려웠던 스마트팜 등에서의 일부 측창 개폐, 일부 천장 개폐 등과 같은 정밀제어가 가능함으로써 재배효율을 높이고, 작업자의 작업부하를 감소할 수 있는 장점이 있다. It has the advantage of increasing cultivation efficiency and reducing the workload of workers by enabling precise control such as opening and closing of some side windows and opening and closing of some ceilings in a smart farm, which was difficult to implement in the past.

모터의 절대위치 오차가 발생하는 경우 상기 상대전극판(70) 쪽으로 상기 코드디스크(20)를 접근 시켜, 두 전극이 접촉하여 두 전극 간에 저항값이 0이되는 것을 기준점으로 하여 위치보정을 실시하는 것을 특징으로 하는 스마트팜용 비례제어를 위한 모터 절대위치 센서를 제공한다. When the absolute position error of the motor occurs, the code disk 20 is approached toward the counter electrode plate 70, and the position is corrected based on the fact that the resistance value between the two electrodes becomes 0 due to contact between the two electrodes. It provides a motor absolute position sensor for proportional control for a smart farm, characterized in that.

본 발명은 상기와 같은 작용효과를 제공하기 위하여 하기의 모터 스마트팜용 비례제어를 위한 모터 절대위치 센서를 제공한다. The present invention provides a motor absolute position sensor for proportional control for the following motor smart farm in order to provide the above-described effects.

본 발명의 모터 절대위치검출센서(80)는 코드디스크(20); 및 The motor absolute position detection sensor 80 of the present invention includes a code disk 20; And

코드디스크의 코드를 읽어내는 적외선발광부(30)와 수광부(40);로 구성되는 회전 절대위치센서부와 상대전극판(70)과 상기 코드디스크(20) 사이의 거리에 의하여 측정되는 캐패시턴스 값으로부터 모터의 회전수를 검출하는 모터회전수센서를 구비하는 것을 특징으로 하는 스마트팜용 비례제어를 위한 모터 절대위치 센서를 제공한다.A capacitance value measured by the distance between the rotational absolute position sensor unit and the counter electrode plate 70 and the code disk 20 consisting of an infrared light emitting unit 30 and a light receiving unit 40 for reading the code of the code disk. It provides a motor absolute position sensor for proportional control for a smart farm, characterized in that it comprises a motor rotation speed sensor for detecting the rotation speed of the motor from.

또한, 상기 회전 절대위치센서의 측정값과 모터회전수센서의 측정값은 시리얼통신 또는 I2C 통신으로 전송하는 것을 특징으로 하는 스마트팜용 비례제어를 위한 모터 절대위치 센서를 제공한다. In addition, a motor absolute position sensor for proportional control for a smart farm, characterized in that the measured value of the rotation absolute position sensor and the measured value of the motor rotation speed sensor are transmitted through serial communication or I2C communication, is provided.

또한, 상기 코드디스크(20)는 마스터 트랙(50), 버니어 트랙(52), 세그먼트 트랙(54) 및 디지털 트랙(60)으로 구성되는 것을 특징으로 하는 스마트팜용 비례제어를 위한 모터 절대위치 센서를 제공한다. In addition, the code disk 20 includes a motor absolute position sensor for proportional control for a smart farm, characterized in that it is composed of a master track 50, a vernier track 52, a segment track 54, and a digital track 60. to provide.

또한, 상기 코드디스크(20)의 코드는 검은색과 희색 패턴으로 구성되는 것을 특징으로 하는 절대위치검출센서를 제공한다. In addition, the code of the code disk 20 provides an absolute position detection sensor, characterized in that consisting of a black and white pattern.

또한, 상기 코드디스크는 회전에 의하여 전방과 후방으로 움직이도록 나사산이 있는 이송수단으로 구성된다. In addition, the code disk is composed of a transfer means having a thread so as to move forward and backward by rotation.

이동거리는 계수하고자하는 모터회전수에 따라 가변가능하며, 나사산과 나사산 사이의 거리와 코드디스크의 지름을 조절함으로써 1 회전 당 변화되는 정전용량을 설정하고 이를 이용하여 모터의 회전수를 측정가능하다.The moving distance can be varied according to the number of motor revolutions to be counted, and by adjusting the distance between the thread and the thread and the diameter of the cord disk, it is possible to set the capacitance that changes per revolution and use this to measure the number of revolutions of the motor.

10: 모터 회전 축
20: 코드 디스크
30: 발광부
40: 수광부
50: 마스터 트랙
52: 버니어 트랙
54: 세그먼트 트랙
60: 디지털 트랙
62: 디지털 트랙
70: 상대전극판
80: 절대위치검출센서10: motor rotation axis
20: code disk
30: light emitting unit
40: light receiving unit
50: master track
52: vernier track
54: segment track
60: digital track
62: digital track
70: counter electrode plate
80: absolute position detection sensor

Claims (4)

모터 절대위치검출센서(80)는 코드디스크(20); 및
코드디스크의 코드를 읽어내는 적외선발광부(30)와 수광부(40);로 구성되는 회전 절대위치센서부와
상대전극판(70)과 상기 코드디스크(20) 사이의 거리에 의하여 측정되는 캐패시턴스 값으로부터 모터의 회전수를 검출하는 모터회전수센서를 구비하는 것을 특징으로 하는 스마트팜용 비례제어를 위한 모터 절대위치 센서.The motor absolute position detection sensor 80 includes a code disk 20; And
A rotational absolute position sensor unit consisting of an infrared light emitting unit 30 and a light receiving unit 40 for reading the code of the code disk, and
Absolute position of a motor for proportional control for a smart farm, comprising a motor rotation speed sensor that detects the rotation speed of the motor from the capacitance value measured by the distance between the counter electrode plate 70 and the code disk 20 sensor. 제1항에 있어서,
상기 회전 절대위치센서의 측정값과 모터회전수센서의 측정값은 시리얼통신 또는 I2C 통신으로 전송하는 것을 특징으로 하는스마트팜용 비례제어를 위한 모터 절대위치 센서.The method of claim 1,
A motor absolute position sensor for proportional control for a smart farm, characterized in that the measured value of the rotational absolute position sensor and the measured value of the motor rotational speed sensor are transmitted through serial communication or I2C communication. 제2항에 있어서,
상기 코드디스크(20)는 마스터 트랙(50), 버니어 트랙(52), 세그먼트 트랙(54) 및 디지털 트랙(60)으로 구성되는 것을 특징으로 하는 스마트팜용 비례제어를 위한 모터 절대위치 센서.The method of claim 2,
The code disk 20 is a motor absolute position sensor for proportional control for a smart farm, characterized in that consisting of a master track (50), a vernier track (52), a segment track (54) and a digital track (60). 제3항에 있어서,
상기 코드디스크(20)의 코드는 검은색과 희색 패턴으로 구성되는 것을 특징으로 하는 스마트팜용 비례제어를 위한 모터 절대위치 센서.The method of claim 3,
The code of the code disk 20 is a motor absolute position sensor for proportional control for a smart farm, characterized in that consisting of a black and white pattern.
KR1020190122744A 2019-10-04 2019-10-04 Motor absolute position sensor for proportional control for smart farm and sensing method using the same KR20210040482A (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100805298B1 (en) 2001-08-29 2008-02-20 두산인프라코어 주식회사 Rotary disk slit of incremental encoder
KR101417654B1 (en) 2013-06-25 2014-07-10 강신준 Encoder for using reflection light of light source

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100805298B1 (en) 2001-08-29 2008-02-20 두산인프라코어 주식회사 Rotary disk slit of incremental encoder
KR101417654B1 (en) 2013-06-25 2014-07-10 강신준 Encoder for using reflection light of light source

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