WO2017152315A1 - Novel photoelectric encoder on the basis of wireless communication technology - Google Patents

Novel photoelectric encoder on the basis of wireless communication technology Download PDF

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Publication number
WO2017152315A1
WO2017152315A1 PCT/CN2016/075727 CN2016075727W WO2017152315A1 WO 2017152315 A1 WO2017152315 A1 WO 2017152315A1 CN 2016075727 W CN2016075727 W CN 2016075727W WO 2017152315 A1 WO2017152315 A1 WO 2017152315A1
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resistor
transistor
capacitor
wireless communication
base
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PCT/CN2016/075727
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French (fr)
Chinese (zh)
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马骏
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马骏
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Priority to PCT/CN2016/075727 priority Critical patent/WO2017152315A1/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
    • G01D5/36—Forming the light into pulses

Definitions

  • the invention relates to a novel photoelectric encoder based on wireless communication technology.
  • a photoelectric encoder is a sensor that converts the amount of mechanical geometric displacement on an output shaft into a pulse or digital quantity by photoelectric conversion. This is the most widely used sensor, and the photoelectric encoder is composed of a grating disk and a photoelectric detecting device.
  • the grating disk is opened in a plurality of rectangular holes equally on a circular plate of a certain diameter. Since the photoelectric code disk is coaxial with the motor, when the motor rotates, the grating disk rotates at the same speed as the motor, and a detecting device composed of electronic components such as light-emitting diodes detects and outputs a plurality of pulse signals, and calculates the number of output pulses of the photoelectric encoder per second. Can reflect the current motor speed.
  • the detection signal is unstable due to lack of guidance of the corresponding device; not only that, the current photoelectric encoder generally lacks remote monitoring capability, which greatly reduces the practicality of the photoelectric encoder. Sex.
  • the technical problem to be solved by the present invention is to provide a novel optical encoder based on wireless communication technology with a guiding function and an online remote monitoring function, in order to overcome the shortage of the light guiding element in the prior art and the lack of online remote monitoring capability.
  • a novel photoelectric encoder based on wireless communication technology comprising a base, a pillar and a launching mechanism vertically disposed on the base, and a detecting mechanism disposed at a top end of the pillar,
  • the transmitting mechanism includes a housing, a light emitting diode vertically disposed in the housing, and a lens disposed above the housing;
  • the detecting mechanism is provided with a code wheel, a baffle, a photodetector and a signal processing device arranged in order from bottom to top, and the baffle is provided with two openings, the opening including a first opening and a second opening Hole, the first opening And the second opening is located directly above the light emitting diode;
  • a central control device is disposed in the base, the central control device includes a wireless communication module, the wireless communication module includes a wireless transmitting circuit and a wireless receiving circuit, and the wireless transmitting circuit includes a first capacitor, a second capacitor, and a third Capacitor, fourth capacitor, fifth capacitor, adjustable capacitor, first resistor, second resistor, third resistor, fourth resistor, fifth resistor, sixth resistor, first triode, second triode, An inductor and an antenna, a base of the first transistor is connected to a first capacitor, a base of the first transistor passes through a first resistor and a collector of the first transistor, the first three pole The tube is grounded through a third resistor, and the collector of the first transistor is externally connected to a 5V DC voltage source through a second resistor, and the collector of the first transistor passes through the second capacitor and the base of the second transistor a pole connection, a base of the second transistor is externally connected to a 5V DC voltage power supply through a fourth resistor, a base of the second transistor is
  • the emitter of the second triode passes through a resistor is grounded, an emitter of the second transistor is connected to a collector of the second transistor through a tunable capacitor, and a collector of the second transistor is connected in series by a tunable capacitor and a fourth capacitor
  • the circuit is externally connected to a 5V DC voltage source, and the collector of the second transistor is connected to the antenna through a fifth capacitor, and the inductor is connected in parallel with the series circuit composed of the adjustable capacitor and the fourth capacitor.
  • the reliability of signal detection is improved by increasing the light-emitting intensity of the light-emitting diode, which is a high-brightness single-color light-emitting diode.
  • the signal processing device is provided with a photodiode and a signal processing module, and the photodiode is electrically connected to the signal processing module.
  • the first triode and the second triode are both PNP triodes.
  • the temperature drift coefficients of the first resistor, the second resistor, the third resistor, the fourth resistor, the fifth resistor, and the sixth resistor are both 2.5% ppm.
  • the invention has the beneficial effects that the new photoelectric encoder based on wireless communication technology will pass through the lens
  • the light emitted by the LED is vertically irradiated onto the code wheel, which ensures the reliability of the optical detector for detecting the optical signal and improves the reliability of the photoelectric encoder;
  • the first transistor is mainly used in the wireless transmitting circuit.
  • the amplifying circuit amplifies the wireless signal to ensure the reliability of the wireless signal transmission.
  • the adjustable capacitor adjusts the oscillation frequency, thereby improving the adjustability and practicability of the wireless transmitting circuit.
  • FIG. 1 is a schematic structural view of a novel photoelectric encoder based on wireless communication technology of the present invention
  • FIG. 2 is a schematic structural view of a transmitting mechanism of a novel photoelectric encoder based on wireless communication technology of the present invention
  • FIG. 3 is a schematic structural view of a baffle of a novel photoelectric encoder based on wireless communication technology of the present invention
  • FIG. 4 is a circuit schematic diagram of a wireless transmitting circuit of a novel photoelectric encoder based on wireless communication technology of the present invention
  • a novel photoelectric encoder based on wireless communication technology includes a base 1, a pillar 3 vertically disposed on the base 1, and a transmitting mechanism 2, and a detecting mechanism disposed at the top of the pillar 3.
  • the transmitting mechanism 2 includes a housing 2-1, a light emitting diode 2-2 vertically disposed in the housing 2-1, and a a lens 2-3 above the outer casing 2-1;
  • the detecting mechanism has a code wheel 4, a baffle 5, a photodetector 6 and a signal processing device 7 arranged in order from bottom to top.
  • the baffle 5 is provided with two openings, and the opening includes a first opening. a hole 5-1 and a second opening 5-2, the first opening 5-1 and the second opening 5-2 are located directly above the light emitting diode 2-2;
  • the base 1 is provided with a central control device, the central control device includes a wireless communication module, and the wireless communication module includes a wireless transmitting circuit and a wireless receiving circuit, and the wireless transmitting circuit includes a first capacitor C1 and a second capacitor C2.
  • the third capacitor C3, the fourth capacitor C4, the fifth capacitor C5, the adjustable capacitor Cp1, the first resistor R1, the second resistor R2, the third resistor R3, the fourth resistor R4, the fifth resistor R5, and the sixth resistor R6 a first transistor Q1, a second transistor Q2, an inductor L1, and an antenna ANT.
  • the base of the first transistor Q1 is connected to the first capacitor C1, and the base of the first transistor Q1 Through the first resistor R1 and the collector of the first transistor Q1, the first transistor Q1 is grounded through the third resistor R3, and the collector of the first transistor Q1 is externally connected to the 5V through the second resistor R2.
  • the DC voltage power supply, the collector of the first transistor Q1 is connected to the base of the second transistor Q2 through the second capacitor C2, and the base of the second transistor Q2 is externally connected to the 5V through the fourth resistor R4.
  • the base of the second transistor Q2 is grounded through a fifth resistor R5, the third power C3 is connected in parallel with the fifth resistor R5, the emitter of the second transistor Q2 is grounded through the sixth resistor R6, and the emitter of the second transistor Q2 is passed through the adjustable capacitor Cp1 and the second transistor Q2.
  • Collector connection the collector of the second transistor Q2 is connected to a 5V DC voltage power supply through a series circuit composed of a tunable capacitor Cp1 and a fourth capacitor C4, and the collector of the second transistor Q2 passes through a fifth capacitor C5 is connected to the antenna ANT, and the inductor L1 is connected in parallel with a series circuit composed of the adjustable capacitor Cp1 and the fourth capacitor C4.
  • the reliability of signal detection is improved by increasing the light-emitting intensity of the light-emitting diode 2-2, which is a high-brightness monochrome light-emitting diode.
  • the signal processing device 7 is provided with a photodiode and a signal processing module,
  • the photodiode is electrically connected to the signal processing module.
  • the first transistor Q1 and the second transistor Q2 are both PNP transistors.
  • the temperature drift coefficients of the first resistor R1, the second resistor R2, the third resistor R3, the fourth resistor R4, the fifth resistor R5, and the sixth resistor R6 are both It is 2.5% ppm.
  • the working principle of the novel photoelectric encoder based on wireless communication technology is that the light-emitting diode 2-2 emits a corresponding light intensity, and the light is vertically irradiated onto the code wheel 4 through the lens 2-3 above the outer casing 2-1, and then the light passes through.
  • the baffle 5 decomposes the light into two optical pulse signals, and then detects and senses the optical pulse through the photodetector 6, and finally judges by the signal processing device 7, thereby calculating the rotational speed.
  • the signal amplifying circuit based on the first transistor Q1 is used to amplify the wireless signal to ensure the reliability of the wireless signal transmission, and is coupled to the second transistor Q2 via the second capacitor C2.
  • the oscillator is composed of amplitude modulation, and then the capacitor has a three-point oscillation tank composed of a fourth capacitor C4, a tunable capacitor Cp1 and an inductor L1.
  • the positive feedback voltage is taken from the tunable capacitor Cp1, and the change of the oscillating frequency is adjusted by the tunable capacitor Cp1. Realized, thereby improving the adjustability and practicability of the wireless transmitting circuit.
  • the high frequency amplitude modulated signal is coupled to the antenna ANT via the fifth capacitor C5 for transmission.
  • the new photoelectric encoder based on the wireless communication technology directly irradiates the light emitted by the LED 2-2 to the code wheel 4 through the lens 2-3, thereby ensuring the detection of the optical signal by the photodetector 6.
  • the reliability of the photoelectric encoder is improved; through the wireless transmitting circuit, the first transistor Q1 is a signal amplifying circuit, and the wireless signal is amplified to ensure the reliability of the wireless signal transmission, and at the same time, the adjustable The capacitor Cp1 adjusts the oscillation frequency, thereby improving the adjustability and practicability of the wireless transmission circuit.

Abstract

A novel photoelectric encoder on the basis of wireless communication technology, comprising a base (1), a post (3) and a transmitting mechanism (2) vertically provided on the base (1), and a detecting mechanism provided at the top of the post (3); the transmitting mechanism (2) comprises a housing (2-1), a light emitting diode (2-2) vertically provided within the housing (2-1), and a lens (2-3) provided above the housing (2-1). The novel photoelectric encoder on the basis of wireless communication technology enables light emitted from the light emitting diode (2-2) to vertically irradiate on a code plate (4) by means of the lens (2-3), so as to ensure the reliability of optical signal detection performed by a photo-detector (6) and to improve the reliability of the photoelectric encoder. A wireless signal is amplified by means of a signal amplification circuit on the basis of a first transistor (Q1) in a wireless transmission circuit, so as to ensure the reliability of wireless signal transmission; and meanwhile, an adjustable capacitor (Cp1) is employed to adjust oscillation frequencies, so as to improve the adjustability and practicality of the wireless transmission circuit.

Description

一种基于无线通讯技术的新型光电编码器A Novel Optical Encoder Based on Wireless Communication Technology 技术领域Technical field
本发明涉及一种基于无线通讯技术的新型光电编码器。The invention relates to a novel photoelectric encoder based on wireless communication technology.
背景技术Background technique
光电编码器，是一种通过光电转换将输出轴上的机械几何位移量转换成脉冲或数字量的传感器。这是目前应用最多的传感器，光电编码器是由光栅盘和光电检测装置组成。光栅盘是在一定直径的圆板上等分地开通若干个长方形孔。由于光电码盘与电动机同轴，电动机旋转时，光栅盘与电动机同速旋转，经发光二极管等电子元件组成的检测装置检测输出若干脉冲信号，通过计算每秒光电编码器输出脉冲的个数就能反映当前电动机的转速。A photoelectric encoder is a sensor that converts the amount of mechanical geometric displacement on an output shaft into a pulse or digital quantity by photoelectric conversion. This is the most widely used sensor, and the photoelectric encoder is composed of a grating disk and a photoelectric detecting device. The grating disk is opened in a plurality of rectangular holes equally on a circular plate of a certain diameter. Since the photoelectric code disk is coaxial with the motor, when the motor rotates, the grating disk rotates at the same speed as the motor, and a detecting device composed of electronic components such as light-emitting diodes detects and outputs a plurality of pulse signals, and calculates the number of output pulses of the photoelectric encoder per second. Can reflect the current motor speed.
在现有技术中，发光二极管发出光时，由于缺少相应设备的导向，会造成检测信号的不稳定；不仅如此，现在的光电编码器普遍缺少远程监控能力，这样大大降低了光电编码器的实用性。In the prior art, when the light emitting diode emits light, the detection signal is unstable due to lack of guidance of the corresponding device; not only that, the current photoelectric encoder generally lacks remote monitoring capability, which greatly reduces the practicality of the photoelectric encoder. Sex.
发明内容Summary of the invention
本发明要解决的技术问题是：为了克服现有技术缺少导光元件且缺少在线远程监控能力的不足，提供一种具有导功能且在线远程监控功能的基于无线通讯技术的新型光电编码器。The technical problem to be solved by the present invention is to provide a novel optical encoder based on wireless communication technology with a guiding function and an online remote monitoring function, in order to overcome the shortage of the light guiding element in the prior art and the lack of online remote monitoring capability.
本发明解决其技术问题所采用的技术方案是：一种基于无线通讯技术的新型光电编码器，包括底座、竖直设置在底座上的支柱和发射机构、设置在支柱顶端的检测机构，所述发射机构包括外壳、竖直设置在外壳内的发光二极管和设置在外壳上方的透镜；The technical solution adopted by the present invention to solve the technical problem thereof is: a novel photoelectric encoder based on wireless communication technology, comprising a base, a pillar and a launching mechanism vertically disposed on the base, and a detecting mechanism disposed at a top end of the pillar, The transmitting mechanism includes a housing, a light emitting diode vertically disposed in the housing, and a lens disposed above the housing;
所述检测机构从下到上依次设置的码盘、挡板、光检测器和信号处理装置，所述挡板上设有两个开孔，所述开孔包括第一开孔和第二开孔，所述第一开孔 和第二开孔位于发光二极管的正上方；The detecting mechanism is provided with a code wheel, a baffle, a photodetector and a signal processing device arranged in order from bottom to top, and the baffle is provided with two openings, the opening including a first opening and a second opening Hole, the first opening And the second opening is located directly above the light emitting diode;
所述底座中设有中央控制装置，所述中央控制装置包括无线通讯模块，所述无线通讯模块包括无线发射电路和无线接收电路，所述无线发射电路包括第一电容、第二电容、第三电容、第四电容、第五电容、可调电容、第一电阻、第二电阻、第三电阻、第四电阻、第五电阻、第六电阻、第一三极管、第二三极管、电感和天线，所述第一三极管的基极与第一电容连接，所述第一三极管的基极通过第一电阻与第一三极管的集电极，所述第一三极管的通过第三电阻接地，所述第一三极管的集电极通过第二电阻外接5V直流电压电源，所述第一三极管的集电极通过第二电容与第二三极管的基极连接，所述第二三极管的基极通过第四电阻外接5V直流电压电源，所述第二三极管的基极通过第五电阻接地，所述第三电容与第五电阻并联，所述第二三极管的发射极通过第六电阻接地，所述第二三极管的发射极通过可调电容与第二三极管的集电极连接，所述第二三极管的集电极通过可调电容和第四电容组成的串联电路外接5V直流电压电源，所述第二三极管的集电极通过第五电容与天线连接，所述电感与可调电容和第四电容组成的串联电路并联。a central control device is disposed in the base, the central control device includes a wireless communication module, the wireless communication module includes a wireless transmitting circuit and a wireless receiving circuit, and the wireless transmitting circuit includes a first capacitor, a second capacitor, and a third Capacitor, fourth capacitor, fifth capacitor, adjustable capacitor, first resistor, second resistor, third resistor, fourth resistor, fifth resistor, sixth resistor, first triode, second triode, An inductor and an antenna, a base of the first transistor is connected to a first capacitor, a base of the first transistor passes through a first resistor and a collector of the first transistor, the first three pole The tube is grounded through a third resistor, and the collector of the first transistor is externally connected to a 5V DC voltage source through a second resistor, and the collector of the first transistor passes through the second capacitor and the base of the second transistor a pole connection, a base of the second transistor is externally connected to a 5V DC voltage power supply through a fourth resistor, a base of the second transistor is grounded through a fifth resistor, and the third capacitor is connected in parallel with the fifth resistor. The emitter of the second triode passes through a resistor is grounded, an emitter of the second transistor is connected to a collector of the second transistor through a tunable capacitor, and a collector of the second transistor is connected in series by a tunable capacitor and a fourth capacitor The circuit is externally connected to a 5V DC voltage source, and the collector of the second transistor is connected to the antenna through a fifth capacitor, and the inductor is connected in parallel with the series circuit composed of the adjustable capacitor and the fourth capacitor.
作为优选，通过提高发光二极管的发光强度，从而提高信号检测的可靠性，所述发光二极管为高亮度单色发光二极管。Preferably, the reliability of signal detection is improved by increasing the light-emitting intensity of the light-emitting diode, which is a high-brightness single-color light-emitting diode.
作为优选，所述信号处理装置中设有光电二极管和信号处理模块，所述光电二极管与信号处理模块电连接。Preferably, the signal processing device is provided with a photodiode and a signal processing module, and the photodiode is electrically connected to the signal processing module.
作为优选，所述第一三极管和第二三极管均为PNP三极管。Preferably, the first triode and the second triode are both PNP triodes.
作为优选，为了提高无线通讯模块的温度抗干扰能力，所述第一电阻、第二电阻、第三电阻、第四电阻、第五电阻和第六电阻的温漂系数均为2.5％ppm。Preferably, in order to improve the temperature anti-interference ability of the wireless communication module, the temperature drift coefficients of the first resistor, the second resistor, the third resistor, the fourth resistor, the fifth resistor, and the sixth resistor are both 2.5% ppm.
本发明的有益效果是，该基于无线通讯技术的新型光电编码器通过透镜将 发光二极管发出的光线都垂直照射到码盘上，保证了光检测器对光信号检测的可靠性，提高了光电编码器的可靠性；通过无线发射电路中，第一三极管为主的信号放大电路，将无线信号放大，保证了无线信号发射的可靠性，同时，可调电容来调节振荡频率，从而提高了无线发射电路的可调性和实用性。The invention has the beneficial effects that the new photoelectric encoder based on wireless communication technology will pass through the lens The light emitted by the LED is vertically irradiated onto the code wheel, which ensures the reliability of the optical detector for detecting the optical signal and improves the reliability of the photoelectric encoder; the first transistor is mainly used in the wireless transmitting circuit. The amplifying circuit amplifies the wireless signal to ensure the reliability of the wireless signal transmission. At the same time, the adjustable capacitor adjusts the oscillation frequency, thereby improving the adjustability and practicability of the wireless transmitting circuit.
附图说明DRAWINGS
下面结合附图和实施例对本发明进一步说明。The invention will now be further described with reference to the drawings and embodiments.
图1是本发明基于无线通讯技术的新型光电编码器的结构示意图；1 is a schematic structural view of a novel photoelectric encoder based on wireless communication technology of the present invention;
图2是本发明基于无线通讯技术的新型光电编码器的发射机构的结构示意图；2 is a schematic structural view of a transmitting mechanism of a novel photoelectric encoder based on wireless communication technology of the present invention;
图3是本发明基于无线通讯技术的新型光电编码器的挡板的结构示意图；3 is a schematic structural view of a baffle of a novel photoelectric encoder based on wireless communication technology of the present invention;
图4是本发明基于无线通讯技术的新型光电编码器的无线发射电路的电路原理图；4 is a circuit schematic diagram of a wireless transmitting circuit of a novel photoelectric encoder based on wireless communication technology of the present invention;
图中：1.底座，2.发射机构，2-1.外壳，2-2.发光二极管，2-3.透镜，3.支柱，4.码盘，5.挡板，6.光检测器，7.信号处理装置，5-1.第一开孔，5-2.第二开孔，C1.第一电容，C2.第二电容，C3.第三电容，C4.第四电容，C5.第五电容，Cp1.可调电容，R1.第一电阻，R2.第二电阻，R3.第三电阻，R4.第四电阻，R5.第五电阻，R6.第六电阻，Q1.第一三极管，Q2.第二三极管，L1.电感，ANT.天线。In the figure: 1. base, 2. launching mechanism, 2-1. outer casing, 2-2. light-emitting diode, 2-3. lens, 3. pillar, 4. code wheel, 5. baffle, 6. photodetector , 7. Signal processing device, 5-1. First opening, 5-2. Second opening, C1. First capacitor, C2. Second capacitor, C3. Third capacitor, C4. Fourth capacitor, C5 Fifth capacitor, Cp1. Adjustable capacitor, R1. First resistor, R2. Second resistor, R3. Third resistor, R4. Fourth resistor, R5. Fifth resistor, R6. Sixth resistor, Q1. A triode, Q2. a second triode, L1. Inductance, ANT. Antenna.
具体实施方式detailed description
现在结合附图对本发明作进一步详细的说明。这些附图均为简化的示意图，仅以示意方式说明本发明的基本结构，因此其仅显示与本发明有关的构成。The invention will now be described in further detail with reference to the drawings. The drawings are simplified schematic diagrams, and only the basic structure of the present invention is illustrated in a schematic manner, and thus only the configurations related to the present invention are shown.
如图1-图4所示，一种基于无线通讯技术的新型光电编码器，包括底座1、竖直设置在底座1上的支柱3和发射机构2、设置在支柱3顶端的检测机构，所述发射机构2包括外壳2-1、竖直设置在外壳2-1内的发光二极管2-2和设置在 外壳2-1上方的透镜2-3；As shown in FIG. 1 to FIG. 4, a novel photoelectric encoder based on wireless communication technology includes a base 1, a pillar 3 vertically disposed on the base 1, and a transmitting mechanism 2, and a detecting mechanism disposed at the top of the pillar 3. The transmitting mechanism 2 includes a housing 2-1, a light emitting diode 2-2 vertically disposed in the housing 2-1, and a a lens 2-3 above the outer casing 2-1;
所述检测机构从下到上依次设置的码盘4、挡板5、光检测器6和信号处理装置7，所述挡板5上设有两个开孔，所述开孔包括第一开孔5-1和第二开孔5-2，所述第一开孔5-1和第二开孔5-2位于发光二极管2-2的正上方；The detecting mechanism has a code wheel 4, a baffle 5, a photodetector 6 and a signal processing device 7 arranged in order from bottom to top. The baffle 5 is provided with two openings, and the opening includes a first opening. a hole 5-1 and a second opening 5-2, the first opening 5-1 and the second opening 5-2 are located directly above the light emitting diode 2-2;
所述底座1中设有中央控制装置，所述中央控制装置包括无线通讯模块，所述无线通讯模块包括无线发射电路和无线接收电路，所述无线发射电路包括第一电容C1、第二电容C2、第三电容C3、第四电容C4、第五电容C5、可调电容Cp1、第一电阻R1、第二电阻R2、第三电阻R3、第四电阻R4、第五电阻R5、第六电阻R6、第一三极管Q1、第二三极管Q2、电感L1和天线ANT，所述第一三极管Q1的基极与第一电容C1连接，所述第一三极管Q1的基极通过第一电阻R1与第一三极管Q1的集电极，所述第一三极管Q1的通过第三电阻R3接地，所述第一三极管Q1的集电极通过第二电阻R2外接5V直流电压电源，所述第一三极管Q1的集电极通过第二电容C2与第二三极管Q2的基极连接，所述第二三极管Q2的基极通过第四电阻R4外接5V直流电压电源，所述第二三极管Q2的基极通过第五电阻R5接地，所述第三电容C3与第五电阻R5并联，所述第二三极管Q2的发射极通过第六电阻R6接地，所述第二三极管Q2的发射极通过可调电容Cp1与第二三极管Q2的集电极连接，所述第二三极管Q2的集电极通过可调电容Cp1和第四电容C4组成的串联电路外接5V直流电压电源，所述第二三极管Q2的集电极通过第五电容C5与天线ANT连接，所述电感L1与可调电容Cp1和第四电容C4组成的串联电路并联。The base 1 is provided with a central control device, the central control device includes a wireless communication module, and the wireless communication module includes a wireless transmitting circuit and a wireless receiving circuit, and the wireless transmitting circuit includes a first capacitor C1 and a second capacitor C2. The third capacitor C3, the fourth capacitor C4, the fifth capacitor C5, the adjustable capacitor Cp1, the first resistor R1, the second resistor R2, the third resistor R3, the fourth resistor R4, the fifth resistor R5, and the sixth resistor R6 a first transistor Q1, a second transistor Q2, an inductor L1, and an antenna ANT. The base of the first transistor Q1 is connected to the first capacitor C1, and the base of the first transistor Q1 Through the first resistor R1 and the collector of the first transistor Q1, the first transistor Q1 is grounded through the third resistor R3, and the collector of the first transistor Q1 is externally connected to the 5V through the second resistor R2. The DC voltage power supply, the collector of the first transistor Q1 is connected to the base of the second transistor Q2 through the second capacitor C2, and the base of the second transistor Q2 is externally connected to the 5V through the fourth resistor R4. a DC voltage power supply, the base of the second transistor Q2 is grounded through a fifth resistor R5, the third power C3 is connected in parallel with the fifth resistor R5, the emitter of the second transistor Q2 is grounded through the sixth resistor R6, and the emitter of the second transistor Q2 is passed through the adjustable capacitor Cp1 and the second transistor Q2. Collector connection, the collector of the second transistor Q2 is connected to a 5V DC voltage power supply through a series circuit composed of a tunable capacitor Cp1 and a fourth capacitor C4, and the collector of the second transistor Q2 passes through a fifth capacitor C5 is connected to the antenna ANT, and the inductor L1 is connected in parallel with a series circuit composed of the adjustable capacitor Cp1 and the fourth capacitor C4.
作为优选，通过提高发光二极管2-2的发光强度，从而提高信号检测的可靠性，所述发光二极管2-2为高亮度单色发光二极管。Preferably, the reliability of signal detection is improved by increasing the light-emitting intensity of the light-emitting diode 2-2, which is a high-brightness monochrome light-emitting diode.
作为优选，所述信号处理装置7中设有光电二极管和信号处理模块，所述 光电二极管与信号处理模块电连接。Preferably, the signal processing device 7 is provided with a photodiode and a signal processing module, The photodiode is electrically connected to the signal processing module.
作为优选，所述第一三极管Q1和第二三极管Q2均为PNP三极管。Preferably, the first transistor Q1 and the second transistor Q2 are both PNP transistors.
作为优选，为了提高无线通讯模块的温度抗干扰能力，所述第一电阻R1、第二电阻R2、第三电阻R3、第四电阻R4、第五电阻R5和第六电阻R6的温漂系数均为2.5％ppm。Preferably, in order to improve the temperature anti-interference capability of the wireless communication module, the temperature drift coefficients of the first resistor R1, the second resistor R2, the third resistor R3, the fourth resistor R4, the fifth resistor R5, and the sixth resistor R6 are both It is 2.5% ppm.
该基于无线通讯技术的新型光电编码器的工作原理是：发光二极管2-2发出相应光强，经过外壳2-1上方的透镜2-3将光线都垂直照射到码盘4上，随后光线经过挡板5将光线进行分解成两个光脉冲信号，随后经过光检测器6对光脉冲进行检测感应，最后由信号处理装置7处理判断，从而计算出转速。The working principle of the novel photoelectric encoder based on wireless communication technology is that the light-emitting diode 2-2 emits a corresponding light intensity, and the light is vertically irradiated onto the code wheel 4 through the lens 2-3 above the outer casing 2-1, and then the light passes through. The baffle 5 decomposes the light into two optical pulse signals, and then detects and senses the optical pulse through the photodetector 6, and finally judges by the signal processing device 7, thereby calculating the rotational speed.
无线发射电路中，首先以第一三极管Q1为主的信号放大电路，将无线信号放大，保证了无线信号发射的可靠性，经过第二电容C2耦合到由第二三极管Q2为主组成的振荡器进行调幅，再由第四电容C4、可调电容Cp1和电感L1组成的电容三点式振荡槽路，正反馈电压取自可调电容Cp1，振荡频率的改变由可调电容Cp1来调节实现，从而提高了无线发射电路的可调性和实用性。最后高频调幅信号经过第五电容C5耦合到天线ANT上发射出去。In the wireless transmitting circuit, firstly, the signal amplifying circuit based on the first transistor Q1 is used to amplify the wireless signal to ensure the reliability of the wireless signal transmission, and is coupled to the second transistor Q2 via the second capacitor C2. The oscillator is composed of amplitude modulation, and then the capacitor has a three-point oscillation tank composed of a fourth capacitor C4, a tunable capacitor Cp1 and an inductor L1. The positive feedback voltage is taken from the tunable capacitor Cp1, and the change of the oscillating frequency is adjusted by the tunable capacitor Cp1. Realized, thereby improving the adjustability and practicability of the wireless transmitting circuit. Finally, the high frequency amplitude modulated signal is coupled to the antenna ANT via the fifth capacitor C5 for transmission.
与现有技术相比，该基于无线通讯技术的新型光电编码器通过透镜2-3将发光二极管2-2发出的光线都垂直照射到码盘4上，保证了光检测器6对光信号检测的可靠性，提高了光电编码器的可靠性；通过无线发射电路中，第一三极管Q1为主的信号放大电路，将无线信号放大，保证了无线信号发射的可靠性，同时，可调电容Cp1来调节振荡频率，从而提高了无线发射电路的可调性和实用性。Compared with the prior art, the new photoelectric encoder based on the wireless communication technology directly irradiates the light emitted by the LED 2-2 to the code wheel 4 through the lens 2-3, thereby ensuring the detection of the optical signal by the photodetector 6. The reliability of the photoelectric encoder is improved; through the wireless transmitting circuit, the first transistor Q1 is a signal amplifying circuit, and the wireless signal is amplified to ensure the reliability of the wireless signal transmission, and at the same time, the adjustable The capacitor Cp1 adjusts the oscillation frequency, thereby improving the adjustability and practicability of the wireless transmission circuit.
以上述依据本发明的理想实施例为启示，通过上述的说明内容，相关工作人员完全可以在不偏离本项发明技术思想的范围内，进行多样的变更以及修改。 本项发明的技术性范围并不局限于说明书上的内容，必须要根据权利要求范围来确定其技术性范围。 In view of the above-described embodiments of the present invention, various changes and modifications may be made by those skilled in the art without departing from the scope of the invention. The technical scope of the present invention is not limited to the contents of the specification, and the technical scope thereof must be determined according to the scope of the claims.

Claims (5)

  1. 一种基于无线通讯技术的新型光电编码器，其特征在于，包括底座(1)、竖直设置在底座(1)上的支柱(3)和发射机构(2)、设置在支柱(3)顶端的检测机构，所述发射机构(2)包括外壳(2-1)、竖直设置在外壳(2-1)内的发光二极管(2-2)和设置在外壳(2-1)上方的透镜(2-3)；A novel photoelectric encoder based on wireless communication technology, comprising: a base (1), a pillar (3) and a launching mechanism (2) vertically disposed on the base (1), and disposed at a top end of the pillar (3) a detecting mechanism (2) comprising a casing (2-1), a light emitting diode (2-2) vertically disposed in the casing (2-1), and a lens disposed above the casing (2-1) (2-3);
    所述检测机构从下到上依次设置的码盘(4)、挡板(5)、光检测器(6)和信号处理装置(7)，所述挡板(5)上设有两个开孔，所述开孔包括第一开孔(5-1)和第二开孔(5-2)，所述第一开孔(5-1)和第二开孔(5-2)位于发光二极管(2-2)的正上方；The detecting mechanism is provided with a code wheel (4), a baffle (5), a photodetector (6) and a signal processing device (7) arranged in order from bottom to top, and the baffle (5) is provided with two openings. a hole including a first opening (5-1) and a second opening (5-2), the first opening (5-1) and the second opening (5-2) being illuminated Directly above the diode (2-2);
    所述底座(1)中设有中央控制装置，所述中央控制装置包括无线通讯模块，所述无线通讯模块包括无线发射电路和无线接收电路，所述无线发射电路包括第一电容(C1)、第二电容(C2)、第三电容(C3)、第四电容(C4)、第五电容(C5)、可调电容(Cp1)、第一电阻(R1)、第二电阻(R2)、第三电阻(R3)、第四电阻(R4)、第五电阻(R5)、第六电阻(R6)、第一三极管(Q1)、第二三极管(Q2)、电感(L1)和天线(ANT)，所述第一三极管(Q1)的基极与第一电容(C1)连接，所述第一三极管(Q1)的基极通过第一电阻(R1)与第一三极管(Q1)的集电极，所述第一三极管(Q1)的通过第三电阻(R3)接地，所述第一三极管(Q1)的集电极通过第二电阻(R2)外接5V直流电压电源，所述第一三极管(Q1)的集电极通过第二电容(C2)与第二三极管(Q2)的基极连接，所述第二三极管(Q2)的基极通过第四电阻(R4)外接5V直流电压电源，所述第二三极管(Q2)的基极通过第五电阻(R5)接地，所述第三电容(C3)与第五电阻(R5)并联，所述第二三极管(Q2)的发射极通过第六电阻(R6)接地，所述第二三极管(Q2)的发射极通过可调电容(Cp1)与第二三极管(Q2)的集电极连接，所述第二三极管(Q2)的集电极通过可调电容(Cp1)和第四电容(C4) 组成的串联电路外接5V直流电压电源，所述第二三极管(Q2)的集电极通过第五电容(C5)与天线(ANT)连接，所述电感(L1)与可调电容(Cp1)和第四电容(C4)组成的串联电路并联。a central control device is disposed in the base (1), the central control device includes a wireless communication module, the wireless communication module includes a wireless transmitting circuit and a wireless receiving circuit, and the wireless transmitting circuit includes a first capacitor (C1), Second capacitor (C2), third capacitor (C3), fourth capacitor (C4), fifth capacitor (C5), adjustable capacitor (Cp1), first resistor (R1), second resistor (R2), Three resistors (R3), fourth resistors (R4), fifth resistors (R5), sixth resistors (R6), first triodes (Q1), second triodes (Q2), inductors (L1), and An antenna (ANT), a base of the first transistor (Q1) is connected to a first capacitor (C1), and a base of the first transistor (Q1) passes through a first resistor (R1) and a first a collector of the transistor (Q1), the first transistor (Q1) is grounded through a third resistor (R3), and the collector of the first transistor (Q1) passes through a second resistor (R2) An external 5V DC voltage power supply is connected, and a collector of the first transistor (Q1) is connected to a base of the second transistor (Q2) through a second capacitor (C2), and the second transistor (Q2) The base is externally connected to a 5V DC voltage source through a fourth resistor (R4), the second three The base of the tube (Q2) is grounded through a fifth resistor (R5), the third capacitor (C3) is connected in parallel with a fifth resistor (R5), and the emitter of the second transistor (Q2) is passed through a sixth resistor (R6) is grounded, the emitter of the second transistor (Q2) is connected to the collector of the second transistor (Q2) through a tunable capacitor (Cp1), and the second transistor (Q2) The collector passes through the adjustable capacitor (Cp1) and the fourth capacitor (C4) The serial circuit is connected to a 5V DC voltage power supply, and the collector of the second transistor (Q2) is connected to the antenna (ANT) through a fifth capacitor (C5), the inductor (L1) and the adjustable capacitor (Cp1) A series circuit composed of a fourth capacitor (C4) is connected in parallel.
  2. 如权利要求1所述的基于无线通讯技术的新型光电编码器，其特征在于，所述发光二极管(2-2)为高亮度单色发光二极管。A novel photoelectric encoder based on wireless communication technology according to claim 1, wherein said light emitting diode (2-2) is a high brightness monochrome light emitting diode.
  3. 如权利要求1所述的基于无线通讯技术的新型光电编码器，其特征在于，所述信号处理装置(7)中设有光电二极管和信号处理模块，所述光电二极管与信号处理模块电连接。The novel optical encoder based on wireless communication technology according to claim 1, wherein the signal processing device (7) is provided with a photodiode and a signal processing module, and the photodiode is electrically connected to the signal processing module.
  4. 如权利要求1所述的基于无线通讯技术的新型光电编码器，其特征在于，所述第一三极管(Q1)和第二三极管(Q2)均为PNP三极管。A novel photoelectric encoder based on wireless communication technology according to claim 1, wherein said first transistor (Q1) and said second transistor (Q2) are both PNP transistors.
  5. 如权利要求1所述的基于无线通讯技术的新型光电编码器，其特征在于，所述第一电阻(R1)、第二电阻(R2)、第三电阻(R3)、第四电阻(R4)、第五电阻(R5)和第六电阻(R6)的温漂系数均为2.5％ppm。 The novel photoelectric encoder based on wireless communication technology according to claim 1, wherein the first resistor (R1), the second resistor (R2), the third resistor (R3), and the fourth resistor (R4) The temperature drift coefficient of the fifth resistor (R5) and the sixth resistor (R6) is 2.5% ppm.
PCT/CN2016/075727 2016-03-05 2016-03-05 Novel photoelectric encoder on the basis of wireless communication technology WO2017152315A1 (en)

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