WO2023207340A1 - 一种人体存在传感装置 - Google Patents
一种人体存在传感装置 Download PDFInfo
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- WO2023207340A1 WO2023207340A1 PCT/CN2023/079875 CN2023079875W WO2023207340A1 WO 2023207340 A1 WO2023207340 A1 WO 2023207340A1 CN 2023079875 W CN2023079875 W CN 2023079875W WO 2023207340 A1 WO2023207340 A1 WO 2023207340A1
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- stepper motor
- circuit board
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- human body
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- 238000012545 processing Methods 0.000 claims abstract description 75
- 230000033001 locomotion Effects 0.000 claims description 18
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- 238000001514 detection method Methods 0.000 abstract description 21
- 239000000306 component Substances 0.000 description 31
- 238000010586 diagram Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000011161 development Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V8/00—Prospecting or detecting by optical means
- G01V8/10—Detecting, e.g. by using light barriers
Definitions
- the invention belongs to the field of detection technology and relates to a human body presence sensing device.
- the main human body presence sensing devices currently on the market include microwave sensors, pyroelectric sensors, thermocouple sensors, etc.
- the microwave sensor has a strong sense of radial motion
- the pyroelectric sensor has a strong sense of tangential thermal body motion
- the thermocouple sensor can sense large changes in temperature.
- a problem that needs to be solved urgently is a low-cost human presence sensing device that can sense the slight movement or non-movement of the human body within the detection range.
- infrared pyroelectric sensors using Fresnel lenses can be used to sense the moving human body. Its working principle is: when someone walks in front of the Fresnel lens, the infrared rays emitted by the human body continuously alternate from the "blind area" to the "high sensitivity area", so that the received infrared signal is strong and weak. Input in the form of pulses to detect the human body.
- this kind of device can only passively sense the infrared signal of the human body. When the human body is stationary, there is no such process of entering the "high sensitivity zone" from the "blind zone", and the human body cannot be detected. For example, in bedrooms, conference rooms, etc., when a person sits down and makes slight movements or is still, the above-mentioned infrared pyroelectric sensor cannot detect whether there is someone, and will make a misjudgment.
- radar transmission and reception can also be used for detection.
- most human body presence sensing devices on the market can only detect a moving human body, and cannot detect if the human body is stationary. If complex detection means or detection instruments are used to detect a stationary human body, the cost performance is low and is not conducive to popularization and application.
- the object of the present invention is to overcome the shortcomings of existing infrared pyroelectric sensors and provide a human body presence sensing device that can sense both a stationary human body and a moving human body, and comprehensively determine the detection Whether there is a human body within the range.
- the human body presence sensing device of the present invention includes: a sensing signal processing component, including: Fresnel filter Mirror, pyroelectric sensor and signal processing circuit board; the Fresnel lens and the pyroelectric sensor are used together, and are fixed on the signal processing circuit board; the driving component includes: a stepper motor and a stepper motor drive circuit board; the stepper motor is fixed on the stepper motor drive circuit board; a rotating component is disposed between the sensing signal processing component and the drive component, in the The driving component drives the movement of the sensing signal processing component; and the cables include data lines and power lines led from the sensing signal processing component and the driving component.
- a sensing signal processing component including: Fresnel filter Mirror, pyroelectric sensor and signal processing circuit board; the Fresnel lens and the pyroelectric sensor are used together, and are fixed on the signal processing circuit board
- the driving component includes: a stepper motor and a stepper motor drive circuit board; the stepper motor is fixed on the stepper motor drive circuit
- the rotating assembly includes a support plate and a rotating shaft; the supporting plate is fixed below the signal processing circuit board; one end of the rotating shaft is connected In the stepper motor, the other end is connected to the support plate, so that when the stepper motor rotates, the rotation shaft drives the support plate to rotate.
- the rotating assembly includes a support column, a rotating bracket and a rotating shaft; the support column is fixed to the signal processing circuit board and the stepper motor drive circuit between the boards; the rotating bracket passes through the hollow groove of the signal processing circuit board from below to connect to the Fresnel lens; one end of the rotating shaft is connected to the stepper motor, and the other end is connected to the In the rotating bracket, when the stepper motor rotates, the rotating shaft drives the rotating bracket to rotate.
- the rotating assembly includes a support plate, a screw rod, a left and right limiting bracket and a screw nut transmission member; the support plate is fixed to the signal processing circuit board below; one end of the screw rod is connected to the stepper motor, and the other end is fixed to the left and right limit brackets on the stepper motor drive circuit board; one end of the screw nut transmission member is a wire
- the rod nut is placed on the screw rod, and the other end is connected to the support plate, so that when the stepper motor rotates, the rotational motion of the screw rod is converted into linear motion through the screw nut transmission member, thereby The support plate is driven to perform left and right translation movement.
- the signal processing circuit board is a signal processing circuit board with a spring brush
- the Fresnel lens is fixed on the housing
- the pyroelectric sensor is fixed on the signal processing circuit board with a spring brush
- the stepper motor drive circuit board is a stepper motor drive circuit board with a brush fixed position
- the stepper motor drive circuit board with a brush fixed position is fixed by The column is fixed to the housing to form a whole
- the rotating assembly includes a support plate and a rotating shaft; the supporting plate is fixed below the signal processing circuit board; one end of the rotating shaft is connected to the stepper In the motor, the other end is connected to the support plate, so that when the stepper motor rotates, the rotation shaft drives the support plate to rotate.
- the Fresnel lens is fixed on the casing, and the pyroelectric sensor is fixed on a signal processing circuit board with a spring brush;
- the motor drive circuit board is fixed to the housing through fixing posts to form a whole;
- the rotating assembly includes a slip ring rotor with three contact rings and a rotating shaft;
- the slip ring rotor is fixed below the signal processing circuit board ;
- One end of the rotating shaft is connected to the stepper motor, and the other end is connected to the inner hole of the slip ring rotor, so that when the stepper motor rotates, the slip ring rotor is driven by the rotating shaft.
- Rotary motion; a slip ring stator with three brushes is fixed to the stepper motor drive circuit board.
- the size of each lens unit in the inner layer of the Fresnel lens is reduced, and the intervals between the lens units are widened and opaque.
- the present invention uses a Fresnel lens and a pyroelectric sensor as the core components of sensing signal processing.
- the driving component and the transmission component are designed to keep the Fresnel lens in a moving state, so that the infrared rays emitted by the human body can continuously alternate from
- the "blind zone” enters the "high sensitivity zone", so that the received infrared signal is input in the form of pulses that are strong and weak, and cooperates with the back-end code processing to achieve the recognition of moving or stationary human bodies. That is, as long as the Fresnel lens is in front Someone can be detected whether they are moving or stationary.
- the device of the present invention provides different combinations of transmission components, all of which can make the Fresnel lens rotate or translate, and can detect the presence of a moving or stationary human body within a certain detection range. Based on this hardware, different algorithm processes can be designed to process motor drive and pyroelectric sensor detection programs.
- the present invention further improves the design of the Fresnel lens by reducing the size of each lens unit in the inner layer of the Fresnel lens.
- the intervals between units are widened and opaque, which increases the detection span distance between the "highly sensitive area” and the “blind area", thereby suppressing interference signals and improving detection accuracy and stability.
- the device of the present invention can use an ordinary built-in power supply or an external power supply, which can save a large amount of electric energy and increase the life of electrical equipment.
- the device of the present invention is easy to assemble, economical and practical, and easy to promote and apply.
- Figure 1 is a schematic structural diagram of a first embodiment of a human body presence sensing device according to the present invention.
- Figure 2 is a schematic structural diagram of a second embodiment of the human body presence sensing device according to the present invention.
- Figure 3 is a schematic structural diagram of the third embodiment of the human body presence sensing device of the present invention.
- Figure 4 is a schematic structural diagram of the fourth embodiment of the human body presence sensing device of the present invention.
- Figure 5 is a schematic structural diagram of the fifth embodiment of the human body presence sensing device of the present invention.
- Figure 6 is a functional block diagram of the human body presence sensing device according to the present invention.
- the human body presence sensing device is a human body presence sensing device that can rotate left and right.
- the device consists of four parts:
- Sensing signal processing components including: Fresnel lens 1, pyroelectric sensor 2 and signal processing circuit board 3.
- the Fresnel lens 1 and the pyroelectric sensor 2 are used together, and both are fixed on the signal processing circuit board 3.
- stepper motor 7 and stepper motor drive circuit board 6.
- stepper motor 7 is fixed on the stepper motor drive circuit board 6 .
- Rotating assembly including: support plate 4 and rotating shaft 5.
- the support board 4 is fixed below the signal processing circuit board 3 .
- One end of the rotating shaft 5 is connected to the stepper motor 7, and the other end is connected to the support plate 4, so that when the stepper motor 7 rotates, the rotating shaft 5 drives the support plate 4 to rotate.
- the stepper motor 7 rotates clockwise or counterclockwise under the control of the program (the rotation angle and rotation speed can be determined according to Need to be set), driving the Fresnel lens 1 and the pyroelectric sensor 2 to rotate, the pyroelectric sensor 2 will detect someone and send out a signal.
- the stepper motor 7 will stop.
- the human body presence sensing device of the present invention is a human body presence sensing device that can rotate left and right.
- the device consists of four parts:
- Sensing signal processing components including: Fresnel lens 1, pyroelectric sensor 2 and signal processing circuit board 3.
- the Fresnel lens 1 and the pyroelectric sensor 2 are used together, and both are fixed on the signal processing circuit board 3.
- stepper motor 7 and stepper motor drive circuit board 6.
- stepper motor 7 is fixed on the stepper motor drive circuit board 6 .
- Rotating assembly including: support column 12, rotating bracket 13 and rotating shaft 5.
- the support column 12 is fixed between the signal processing circuit board 3 and the stepper motor driving circuit board 6 .
- the rotating bracket 13 passes through the hollow groove 14 of the signal processing circuit board 3 from below to connect the Fresnel lens 1 .
- One end of the rotating shaft 5 is connected to the stepper motor 7, and the other end is connected to the rotating bracket 13, so that when the stepper motor 7 rotates, the rotating shaft 5 drives the rotating bracket 13 to rotate.
- the stepper motor 7 rotates clockwise or counterclockwise under the control of the program (the rotation angle and rotation speed can be set as needed). (determined), driving the Fresnel lens 1 to rotate, and the pyroelectric sensor 2 will detect someone and send out a signal.
- the stepper motor 7 will stop.
- the human body presence sensing device of the present invention is a human body presence sensing device that can move left and right.
- the device consists of four parts:
- Sensing signal processing components including: Fresnel lens 1, pyroelectric sensor 2 and signal processing circuit board 3.
- the Fresnel lens 1 and the pyroelectric sensor 2 are used together, and both are fixed on the signal processing circuit board 3.
- Stepper Motor 7 It is fixed on the stepper motor drive circuit board 6.
- Rotating assembly including: support plate 4, screw rod 11, left and right limit brackets 10 and screw nut transmission member 9.
- the support board 4 is fixed below the signal processing circuit board 3 .
- One end of the screw rod 11 is connected to the stepper motor 7 , and the other end is fixed to the left and right limit brackets 10 on the stepper motor drive circuit board 6 .
- One end of the screw nut transmission member 9 is a screw nut, which is put on the screw rod 11, and the other end is connected to the support plate 4, so that when the stepper motor 7 rotates, the rotational motion of the screw 11 is passed through the screw nut transmission member 9 It is converted into linear motion to drive the support plate 4 to perform left and right translation motion.
- the stepper motor 7 rotates clockwise or counterclockwise under the control of the program (the rotation angle and rotation speed can be set as needed). (fixed), the Fresnel lens 1 and the pyroelectric sensor 2, which are connected to the screw through the screw nut transmission member, will move left and right. The screw is provided with left and right limit brackets 10 respectively. The pyroelectric sensor 2 will detect someone. and send a signal. When the human body leaves the detection range of the Fresnel lens 1 for a certain period of time (for example, 1 minute or other set time), the stepper motor 7 will stop.
- the human body presence sensing device of the present invention is a human body presence sensing device using a disk-type conductive slip ring.
- the device consists of four parts:
- Sensing signal processing components including: Fresnel lens 1, pyroelectric sensor 2 and signal processing circuit board 17 with shrapnel brush.
- Fresnel lens 1 and pyroelectric sensor 2 are used together.
- the Fresnel lens 1 is fixed on the housing 22 (for example, four protruding nails on the edge of the Fresnel lens 1 are inserted into the housing 22 and fixed), and the pyroelectric sensor 2 is fixed on the signal processing unit with a shrapnel brush. on the circuit board 17 (eg by soldering).
- Driving assembly including: stepper motor 7 and stepper motor drive circuit board 18 with three rings surrounding concentric circles.
- the stepper motor 7 is fixed on the stepper motor drive circuit board 18 with three rings surrounding concentric circles.
- the stepper motor driving circuit board 18 is fixed to the housing 22 through the fixing post 21 to form a whole body.
- Rotating assembly including: support plate 4 and rotating shaft 5.
- the support board 4 is fixed below the signal processing circuit board 17 .
- One end of the rotating shaft 5 is connected to the stepper motor 7, and the other end is connected to the support plate 4, so that when the stepper motor 7 rotates, the rotating shaft 5 drives the support plate 4 to rotate.
- the human body presence sensing device of the present invention is a human body presence sensing device using a cylindrical conductive slip ring.
- the device consists of four parts:
- Sensing signal processing components including: Fresnel lens 1, pyroelectric sensor 2 and signal processing circuit board 3. Fresnel lens 1 and pyroelectric sensor 2 are used together.
- the Fresnel lens 1 is fixed on the housing 22 (for example, by inserting four protruding nails on the edge of the Fresnel lens 1 into the housing 22), and the pyroelectric sensor 2 is fixed on the signal processing circuit board 3 (for example by welding).
- (2) Drive assembly including: stepper motor 7 and stepper motor drive circuit board 23 with brush fixed position.
- the stepper motor 7 is fixed on the stepper motor drive circuit board 23 with a brush fixing position.
- the stepper motor driving circuit board 23 with the brush fixed position is fixed to the housing 22 through the fixing post 21 to form a whole.
- Rotating component including: slip ring rotor 19 with three contact rings and rotating shaft 5.
- a slip ring rotor 19 with three contact rings is fixed below the signal processing circuit board 3 .
- One end of the rotating shaft 5 is connected to the stepper motor 7 , and the other end is connected to the inner hole of the slip ring rotor 19 , so that when the stepper motor 7 rotates, the rotating shaft 5 drives the slip ring rotor 19 to rotate.
- the slip ring stator 20 with three brushes is fixed on the stepper motor drive circuit board 23 with brush fixing positions.
- Figure 6 shows the working principle of the human body presence sensing device according to the present invention.
- the signal processing circuit board 3 processes the signal detected by the pyroelectric sensor 2. Convert it into a pulse signal.
- the microcontroller 15 detects this pulse signal, it sends an instruction to the stepper motor drive circuit 6, causing the stepper motor 7 to rotate clockwise and counterclockwise or directly in a regular manner, and sends an action to the relay 16 instruction.
- the single-chip microcomputer 15 is on the signal processing circuit board 3, and the relays 16 are installed on each stepper motor drive circuit.
- Embodiments 1 to 3 of the present invention After powering on, the program is started and initialized, the human body presence sensing device starts to work, and the microcontroller always detects whether there is a pulse signal from the signal processing circuit board. If there is no If a pulse signal is detected, the loop detection will continue; if a pulse signal is detected, the relay will be closed, and instructions for clockwise rotation and counterclockwise rotation will be sent to the stepper motor in sequence. During this period, the drive circuit continues to judge whether there is someone, that is, detecting the pulse signal; if no pulse signal is detected, it will delay for 10 seconds. If the pulse signal is still not detected during the 10-second delay, it will stop sending to the stepper motor drive circuit. command and disconnect the relay, and continue testing.
- An application example of the human body presence sensing device described in Embodiment 4 of the present invention after power is turned on, the program is started and initialized, the human body presence sensing device starts to work, and the microcontroller always detects whether there is a pulse signal from the signal processing circuit board. If there is no detection If a pulse signal is detected, the cycle detection will continue; if a pulse signal is detected, the relay will be closed.
- the stepper motor 7 rotates clockwise (or counterclockwise) under the control of the program, driving the signal processing circuit board 17 with the shrapnel brush to rotate together. , the pyroelectric sensor 2 that rotates will detect someone and send out a signal.
- this time can be set arbitrarily, such as 10 seconds
- the stepper motor 7 will automatically stop.
- Embodiment 5 of the present invention after power is turned on, the program is started and initialized, the human body presence sensing device starts to work, and the microcontroller always detects whether there is a pulse signal from the signal processing circuit board. If there is no detection If a pulse signal is detected, the cycle detection will continue; if a pulse signal is detected, the relay will be closed.
- the stepper motor 7 When a human body is in front of the Fresnel lens 1, whether it is moving or stationary, the stepper motor 7 rotates clockwise (or counterclockwise) under the control of the program, driving the slip ring rotor 19 with three contact rings and the signal
- the processing circuit board 3 rotates together, and the pyroelectric sensor 2 that rotates along with it will detect someone and send out a signal.
- this time can be set arbitrarily, such as 10 seconds
- the stepper motor 7 will automatically stop.
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Abstract
一种人体存在传感装置，包括：传感信号处理组件，包括：菲涅尔透镜（1）、热释电传感器（2）和信号处理电路板（3）；菲涅尔透镜（1）与热释电传感器（2）是配套使用的，都被固定于信号处理电路板（3）上；驱动组件，包括：步进电机（7）和步进电机驱动电路板（6）；步进电机（7）被固定于步进电机驱动电路板（6）上；转动组件，被设置于传感信号处理组件与驱动组件之间，在驱动组件的驱动下带动传感信号处理组件的运动；以及排线（8），包括从传感信号处理组件与驱动组件引出的数据线和电源线。人体存在传感装置既能对静止的人体进行感知，又能对运动的人体进行感知，并综合确定检测范围内是否有人体存在。
Description
本发明属于检测技术领域，涉及一种人体存在传感装置。
随着社会的快速进步和科技的突飞猛进发展，用电负荷加剧，节能减排成为全社会共同关心的问题。如今智能科技的迅速发展，各种各样的新型传感器的发展与应用越来越体现出智能化的优点，极大的提高了人们的生活便利以及用电效率。当前市场上主要存在的人体存在传感装置有微波传感器、热释电传感器、热电偶传感器等。其中，微波传感器对径向运动感知力较强，热释电传感器对切向热体运动感知力较强，热电偶传感器对温度的大幅改变有感知。当前急需解决的一个问题是低成本对检测范围范围内微运动或不运动的人体都可以感知的一种人体存在传感装置。
目前，配套使用菲涅尔透镜的红外热释电传感器能被应用于感知运动的人体。它的工作原理是：当有人从菲涅尔透镜前走过时，人体发出的红外线就不断地交替从“盲区”进入“高灵敏区”，这样就使接收到的红外信号以忽强忽弱的脉冲形式输入，从而检测到人体。然而，这种设备只能被动地感知人体红外信号，当人体静止时就没有这种从“盲区”进入“高灵敏区”的过程，也就无法检测到人体。例如，在卧室、会议室等场合，当人坐下来动作微小或静止时，上述红外热释电传感器是无法探测是否有人存在的，从而会做出误判。
除了采用红外传感器之外，还可采用雷达发射和接收等方式进行检测。但是，市面上的大部分人体存在传感装置只可以检测到活动的人体，而如果人体静止，就无法检测。如果采用复杂的检测手段或检测仪器来检测静止不动的人体，则性价比较低，不利于推广应用。
发明内容
本发明的目的在于克服现有的红外热释电传感器的不足，提供一种人体存在传感装置，该装置既能对静止的人体进行感知，又能对运动的人体进行感知，并综合确定检测范围内是否有人体存在。
本发明所述的人体存在传感装置包括：传感信号处理组件，包括：菲涅尔透
镜、热释电传感器和信号处理电路板；所述菲涅尔透镜与所述热释电传感器是配套使用的，都被固定于所述信号处理电路板上；驱动组件，包括：步进电机和步进电机驱动电路板；所述步进电机被固定于所述步进电机驱动电路板上；转动组件，被设置于所述传感信号处理组件与所述驱动组件之间，在所述驱动组件的驱动下带动所述传感信号处理组件的运动；以及排线，包括从所述传感信号处理组件与所述驱动组件引出的数据线和电源线。
根据本发明所述的人体存在传感装置的进一步特征，所述转动组件包括支撑板和转动轴；所述支撑板被固定于所述信号处理电路板的下方；所述转动轴的一端接入所述步进电机内，另一端接入所述支撑板，以致在所述步进电机转动时通过所述转动轴带动所述支撑板进行旋转运动。
根据本发明所述的人体存在传感装置的进一步特征，所述转动组件包括支撑柱、转动支架和转动轴；所述支撑柱被固定于所述信号处理电路板与所述步进电机驱动电路板之间；所述转动支架从下方穿过所述信号处理电路板的镂空槽连接所述菲涅尔透镜；所述转动轴的一端接入所述步进电机内，另一端接入所述转动支架内，以致在所述步进电机转动时通过所述转动轴带动所述转动支架进行旋转运动。
根据本发明所述的人体存在传感装置的进一步特征，所述转动组件包括支撑板、丝杆、左右限位支架和丝杆螺母传动件；所述支撑板被固定于所述信号处理电路板的下方；所述丝杆的一端接入所述步进电机内，另一端固定于所述步进电机驱动电路板上的所述左右限位支架；所述丝杆螺母传动件的一端为丝杆螺母，套在所述丝杆上，另一端接入所述支撑板，以致在所述步进电机转动时将所述丝杆的旋转运动通过所述丝杆螺母传动件转化为直线运动从而带动所述支撑板进行左右平移运动。
根据本发明所述的人体存在传感装置的进一步特征，所述信号处理电路板为带弹片电刷的信号处理电路板；所述菲涅尔透镜被固定在外壳上，所述热释电传感器被固定于带弹片电刷的信号处理电路板上；所述步进电机驱动电路板为带电刷固定位置的步进电机驱动电路板；所述带电刷固定位置的步进电机驱动电路板通过固定柱与所述外壳固定形成一个整体；所述转动组件包括支撑板和转动轴；所述支撑板被固定于所述信号处理电路板下方；所述转动轴的一端接入所述步进
电机内，另一端接入所述支撑板，以致在所述步进电机转动时通过所述转动轴带动所述支撑板进行旋转运动。
根据本发明所述的人体存在传感装置的进一步特征，所述菲涅尔透镜被固定在外壳上，所述热释电传感器被固定于带弹片电刷的信号处理电路板上；所述步进电机驱动电路板通过固定柱与所述外壳固定形成一个整体；所述转动组件包括带有三条接触环的滑环转子和转动轴；所述滑环转子被固定于所述信号处理电路板下方；所述转动轴的一端接入所述步进电机内，另一端接入所述滑环转子的内孔，以致在所述步进电机转动时通过所述转动轴带动所述滑环转子进行旋转运动；带有三个电刷的滑环定子固定在所述步进电机驱动电路板上。
根据本发明所述的人体存在传感装置的进一步特征，所述菲涅尔透镜内层的每个透镜单元的尺寸缩小，各透镜单元之间的间隔加宽且不透光。
本发明所述的人体存在传感装置具有以下有益效果：
(1)本发明采用菲涅尔透镜和热释电传感器作为传感信号处理的核心元件，同时设计驱动组件和传动组件使菲涅尔透镜处于运动状态，人体发出的红外线就可以不断地交替从“盲区”进入“高灵敏区”，这样就使接收到的红外信号以忽强忽弱的脉冲形式输入，配合后端代码处理，达到识别运动或静止的人体，也就是只要菲涅尔透镜前有人无论是运动还是静止都可以检测到。
(2)本发明所述装置提供了不同的传动组件的组合实施方式，均能使菲涅尔透镜旋转或者平移，能够对一定检测范围内运动或静止人体是否存在进行检测。在此硬件基础上可以设计不同的算法流程，处理电机驱动和热释电传感器检测的程序。
(3)基于本发明所述装置的菲涅尔透镜可移动的特点，本发明还进一步改进了菲涅尔透镜的设计，将菲涅尔透镜内层的每个透镜单元的尺寸缩小，各透镜单元之间的间隔加宽且不透光，增大了“高灵敏区”和“盲区”之间的检测跨越距离，从而达到抑制干扰信号提高检测的准确度和稳定度。
(4)本发明所述装置可以采用普通的内置电源或者外接电源，可节约大量电能和增加用电设备的寿命。
(5)本发明所述装置装配方便，经济实用，便于推广应用。
图1是本发明所述的人体存在传感装置的第一种实施例的结构示意图。
图2是本发明所述的人体存在传感装置的第二种实施例的结构示意图。
图3是本发明的人体存在传感装置的第三种实施例的结构示意图。
图4是本发明的人体存在传感装置的第四种实施例的结构示意图。
图5是本发明的人体存在传感装置的第五种实施例的结构示意图。
图6是本发明所述的人体存在传感装置的原理框图。
附图标记：
1：菲涅尔透镜；2：热释电传感器；3：信号处理电路板；4：支撑板；5：转动
轴；6：步进电机驱动电路板；7：步进电机；8：排线；9：丝杆螺母传动件；10：左右限位支架；11：丝杆；12：支撑柱；13:转动支架；14：镂空槽；15：单片机；16：继电器；17：带弹片电刷信号处理电路板；18：带三条环道围绕同心圆步进电机驱动电路板；19：带有三条接触环滑环转子；20：带有三个电刷滑环定子；21：固定柱；22：外壳；23：带电刷固定位置的步进电机驱动电路板。
1：菲涅尔透镜；2：热释电传感器；3：信号处理电路板；4：支撑板；5：转动
轴；6：步进电机驱动电路板；7：步进电机；8：排线；9：丝杆螺母传动件；10：左右限位支架；11：丝杆；12：支撑柱；13:转动支架；14：镂空槽；15：单片机；16：继电器；17：带弹片电刷信号处理电路板；18：带三条环道围绕同心圆步进电机驱动电路板；19：带有三条接触环滑环转子；20：带有三个电刷滑环定子；21：固定柱；22：外壳；23：带电刷固定位置的步进电机驱动电路板。
下面将通过具体实施例结合所附的附图对本发明进行详细描述。
实施例一：
本发明所述的人体存在传感装置，如图1所示，是一种可以左右旋转的人体存在传感装置。该装置包括四部分：
(一)传感信号处理组件，包括：菲涅尔透镜1、热释电传感器2和信号处理电路板3。菲涅尔透镜1与热释电传感器2是配套使用的，都被固定于信号处理电路板3上。
(二)驱动组件，包括：步进电机7和步进电机驱动电路板6。步进电机7被固定于步进电机驱动电路板6上。
(三)转动组件，包括：支撑板4和转动轴5。支撑板4被固定于信号处理电路板3的下方。转动轴5的一端接入步进电机7内，另一端接入支撑板4，以致在步进电机7转动时通过转动轴5带动支撑板4进行旋转运动。
(四)排线8，包括从传感信号处理组件与驱动组件引出的数据线和电源线。
具体使用时，当有人体在菲涅尔透镜1前面时，无论是运动或静止，因步进电机7在程序的控制下依次顺时针或逆时针转动(转动角和转动速度都可以根据
需要设定)，带动菲涅尔透镜1和热释电传感器2转动，热释电传感器2会检测到有人并发出信号。当人体离开菲涅尔透镜1检测范围一定时间(例如，1分钟或者设定的其他时间)，步进电机7会停止。
实施例二：
本发明所述的人体存在传感装置，如图2所示，是一种可以左右旋转的人体存在传感装置。该装置包括四部分：
(一)传感信号处理组件，包括：菲涅尔透镜1、热释电传感器2和信号处理电路板3。菲涅尔透镜1与热释电传感器2是配套使用的，都被固定于信号处理电路板3上。
(二)驱动组件，包括：步进电机7和步进电机驱动电路板6。步进电机7被固定于步进电机驱动电路板6上。
(三)转动组件，包括：支撑柱12、转动支架13和转动轴5。支撑柱12被固定于信号处理电路板3与步进电机驱动电路板6之间。转动支架13从下方穿过信号处理电路板3的镂空槽14连接菲涅尔透镜1。转动轴5的一端接入步进电机7内，另一端接入转动支架13，以致在步进电机7转动时通过转动轴5带动转动支架13进行旋转运动。
(四)排线8，包括从传感信号处理组件与驱动组件引出的数据线和电源线。
具体使用时，当有人体在菲涅尔透镜1前面时，无论是运动或静止，因步进电机7在程序的控制下依次顺时针或逆时针转动(转动角和转动速度都可以根据需要设定)，带动菲涅尔透镜1转动，热释电传感器2会检测到有人并发出信号。当人体离开菲涅尔透镜1检测范围一定时间(例如，1分钟或者设定的其他时间)，步进电机7会停止。
实施例三：
本发明所述的人体存在传感装置，如图3所示，是一种可以左右移动的人体存在传感装置。该装置包括四部分：
(一)传感信号处理组件，包括：菲涅尔透镜1、热释电传感器2和信号处理电路板3。菲涅尔透镜1与热释电传感器2是配套使用的，都被固定于信号处理电路板3上。
(二)驱动组件，包括：步进电机7和步进电机驱动电路板6。步进电机7
被固定于步进电机驱动电路板6上。
(三)转动组件，包括：支撑板4、丝杆11、左右限位支架10和丝杆螺母传动件9。支撑板4被固定于信号处理电路板3的下方。丝杆11的一端接入步进电机7内，另一端固定于步进电机驱动电路板6上的左右限位支架10内。丝杆螺母传动件9的一端为丝杆螺母，套在丝杆11上，另一端接入支撑板4，以致在步进电机7转动时将丝杆11的旋转运动通过丝杆螺母传动件9转化为直线运动从而带动支撑板4进行左右平移运动。
(四)排线8，包括从传感信号处理组件与驱动组件引出的数据线和电源线。
具体使用时，当有人体在菲涅尔透镜1前面时，无论是运动或静止，因步进电机7在程序的控制下依次顺时针或逆时针转动(转动角和转动速度都可以根据需要设定)，与丝杆通过丝杆螺母传动件连结的菲涅尔透镜1和热释电传感器2会左右移动，丝杆上分别设有左右限位支架10，热释电传感器2会检测到有人并发出信号。当人体离开菲涅尔透镜1检测范围一定时间(例如，1分钟或者设定的其他时间)，步进电机7会停止。
实施例四
本发明所述的人体存在传感装置，如图4所示，是一种利用盘式导电滑环的人体存在传感装置。该装置包括四部分：
(一)传感信号处理组件，包括：菲涅尔透镜1、热释电传感器2和带弹片电刷的信号处理电路板17。菲涅尔透镜1与热释电传感器2是配套使用的。菲涅尔透镜1被固定在外壳22上(例如通过菲涅尔透镜1边沿的4个突出的小钉插入外壳22上固定的)，热释电传感器2被固定于带弹片电刷的信号处理电路板17上(例如通过焊接方式)。
(二)驱动组件，包括：步进电机7和带三条围绕同心圆的环道的步进电机驱动电路板18。步进电机7被固定于带三条围绕同心圆的环道的步进电机驱动电路板18上。步进电机驱动电路板18通过固定柱21与外壳22固定形成一个整体。
(三)转动组件，包括：支撑板4和转动轴5。支撑板4被固定于信号处理电路板17的下方。转动轴5的一端接入步进电机7内，另一端接入支撑板4，以致在步进电机7转动时通过转动轴5带动支撑板4进行旋转运动。
(四)排线8，包括从传感信号处理组件与驱动组件引出的数据线和电源线。
实施例五
本发明所述的人体存在传感装置，如图5所示，是一种利用柱型导电滑环的人体存在传感装置。该装置包括四部分：
(一)传感信号处理组件，包括：菲涅尔透镜1、热释电传感器2和信号处理电路板3。菲涅尔透镜1与热释电传感器2是配套使用的。菲涅尔透镜1被固定在外壳22上(例如通过菲涅尔透镜1边沿的4个突出的小钉插入外壳22上固定的)，热释电传感器2被固定于信号处理电路板3上(例如通过焊接方式)。
(二)驱动组件，包括：步进电机7和带电刷固定位置的步进电机驱动电路板23。步进电机7被固定于带电刷固定位置的步进电机驱动电路板23上。带电刷固定位置的步进电机驱动电路板23通过固定柱21与外壳22固定形成一个整体。
(三)转动组件，包括：带有三条接触环的滑环转子19和转动轴5。带有三条接触环的滑环转子19被固定于信号处理电路板3的下方。转动轴5的一端接入步进电机7内，另一端接入滑环转子19的内孔，以致在步进电机7转动时通过转动轴5带动滑环转子19进行旋转运动。带有三个电刷的滑环定子20固定在带电刷固定位置的步进电机驱动电路板23上。
(四)排线8，包括从传感信号处理组件与驱动组件引出的数据线和电源线。
图6示出了本发明所述的人体存在传感装置的工作原理。当有人在菲涅尔透镜1前面时，会将人体红外热辐射通过菲涅尔透镜1聚焦到热释电传感器2上，信号处理电路板3对热释电传感器2检测到的信号进行处理，转换成脉冲信号，单片机15一旦检测到此脉冲信号便发送指令到步进电机驱动电路6，使步进电机7有规律的依次顺时针旋转和逆时针旋转或直接旋转，并且向继电器16发出动作指令。单片机15在信号处理电路板3上，继电器16安装在各个步进电机驱动电路上。
本发明实施例一至三所述的人体存在传感装置的应用示例：通电后，程序启动并初始化，人体存在传感装置开始工作，单片机始终检测是否有来自信号处理电路板的脉冲信号，若没有检测到脉冲信号，则继续进行循环检测；若检测到脉冲信号，则闭合继电器，并依次发出顺时针旋转和逆时针旋转的指令给步进电机
驱动电路，期间继续进行是否有人的判断，即检测脉冲信号；若没有检测到脉冲信号就延时10秒，若延时10秒期间仍然检测不到脉冲信号，就停止向步进电机驱动电路发送指令且断开继电器，并继续检测。
本发明实施例四所述的人体存在传感装置的应用示例：通电后，程序启动并初始化，人体存在传感装置开始工作，单片机始终检测是否有来自信号处理电路板的脉冲信号，若没有检测到脉冲信号，则继续进行循环检测；若检测到脉冲信号，则闭合继电器。当有人体在菲涅尔透镜1前面时无论是运动或静止，因为步进电机7在程序的控制下顺时针旋转(也可逆时针旋转)，带动带弹片电刷的信号处理电路板17一起旋转，跟着旋转的热释电传感器2会检测到有人并发出信号。当人体离开菲涅尔透镜1检测范围延时设定一个时间(此时间可以任意设定比如10秒)，步进电机7会自动停止。
本发明实施例五所述的人体存在传感装置的应用示例：通电后，程序启动并初始化，人体存在传感装置开始工作，单片机始终检测是否有来自信号处理电路板的脉冲信号，若没有检测到脉冲信号，则继续进行循环检测；若检测到脉冲信号，则闭合继电器。当有人体在菲涅尔透镜1前面时无论是运动或静止，因为步进电机7在程序的控制下顺时针旋转(也可逆时针旋转)，带动带有三条接触环的滑环转子19以及信号处理电路板3一起旋转，跟着旋转的热释电传感器2就会检测到有人并发出信号。当人体离开菲涅尔透镜1检测范围延时设定一个时间(此时间可以任意设定比如10秒)，步进电机7会自动停止。
显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
Claims (7)
- 一种人体存在传感装置，其特征在于，包括：传感信号处理组件，包括：菲涅尔透镜、热释电传感器和信号处理电路板；所述菲涅尔透镜与所述热释电传感器是配套使用的，都被固定于所述信号处理电路板上；驱动组件，包括：步进电机和步进电机驱动电路板；所述步进电机被固定于所述步进电机驱动电路板上；转动组件，被设置于所述传感信号处理组件与所述驱动组件之间，在所述驱动组件的驱动下带动所述传感信号处理组件的运动；以及排线，包括从所述传感信号处理组件与所述驱动组件引出的数据线和电源线。
- 根据权利要求1所述的人体存在传感装置，其特征在于：所述转动组件包括支撑板和转动轴；所述支撑板被固定于所述信号处理电路板的下方；所述转动轴的一端接入所述步进电机内，另一端接入所述支撑板，以致在所述步进电机转动时通过所述转动轴带动所述支撑板进行旋转运动。
- 根据权利要求1所述的人体存在传感装置，其特征在于：所述转动组件包括支撑柱、转动支架和转动轴；所述支撑柱被固定于所述信号处理电路板与所述步进电机驱动电路板之间；所述转动支架从下方穿过所述信号处理电路板的镂空槽连接所述菲涅尔透镜；所述转动轴的一端接入所述步进电机内，另一端接入所述转动支架内，以致在所述步进电机转动时通过所述转动轴带动所述转动支架进行旋转运动。
- 根据权利要求1所述的人体存在传感装置，其特征在于：所述转动组件包括支撑板、丝杆、左右限位支架和丝杆螺母传动件；所述支撑板被固定于所述信号处理电路板的下方；所述丝杆的一端接入所述步进电机内，另一端固定于所述步进电机驱动电路板上的所述左右限位支架；所述丝杆螺母传动件的一端为丝杆螺母，套在所述丝杆上，另一端接入所述支撑板，以致在所述步进电机转动时将所述丝杆的旋转运动通过所述丝杆螺母传动件转化为直线运动从而带动所述支撑板进行左右平移运动。
- 根据权利要求1所述的人体存在传感装置，其特征在于：所述信号处理电路 板为带弹片电刷的信号处理电路板；所述菲涅尔透镜被固定在外壳上，所述热释电传感器被固定于带弹片电刷的信号处理电路板上；所述步进电机驱动电路板为带电刷固定位置的步进电机驱动电路板；所述带电刷固定位置的步进电机驱动电路板通过固定柱与所述外壳固定形成一个整体；所述转动组件包括支撑板和转动轴；所述支撑板被固定于所述信号处理电路板下方；所述转动轴的一端接入所述步进电机内，另一端接入所述支撑板，以致在所述步进电机转动时通过所述转动轴带动所述支撑板进行旋转运动。
- 根据权利要求1所述的人体存在传感装置，其特征在于：所述菲涅尔透镜被固定在外壳上，所述热释电传感器被固定于带弹片电刷的信号处理电路板上；所述步进电机驱动电路板通过固定柱与所述外壳固定形成一个整体；所述转动组件包括带有三条接触环的滑环转子和转动轴；所述滑环转子被固定于所述信号处理电路板下方；所述转动轴的一端接入所述步进电机内，另一端接入所述滑环转子的内孔，以致在所述步进电机转动时通过所述转动轴带动所述滑环转子进行旋转运动；带有三个电刷的滑环定子固定在所述步进电机驱动电路板上。
- 根据权利要求1所述的人体存在传感装置，其特征在于：所述菲涅尔透镜内层的每个透镜单元的尺寸缩小，各透镜单元之间的间隔加宽且不透光。
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| CN114660672A (zh) * | 2022-04-24 | 2022-06-24 | 庄继东 | 一种人体存在传感装置 |
| CN217879676U (zh) * | 2022-04-24 | 2022-11-22 | 庄继东 | 一种人体存在传感装置 |
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