Portable object detection device based on infrared transmitting and receiving

Abstract

The utility model discloses a portable object detection device based on infrared emission and reception. A frame body is provided with a power socket, a power switch, an AC / DC power supply module, a DC / DC power supply module and an infrared detection circuit module. An infrared transmitting tube and an infrared receiving tube of the infrared detection circuit module are arranged side by side towards the outside of the frame body in the same direction; the power switch is connected between the AC / DC power module and the power socket, and the AC / DC power module is connected with commercial power through the power switch and the power socket and converts the commercial power into direct current; the output end of the AC / DC power module is connected with the input end of the DC / DC power module; the output end of the DC / DC power supply module is connected with the power supply input end of the infrared detection circuit module and provides a working power supply for the infrared detection circuit module. When the device is applied to a detection occasion, an infrared emitting diode and an infrared receiving diode do not need to be oppositely arranged, and the working efficiency of object detection is improved. Meanwhile, the detection device is convenient to move, transport and carry, wide in detection occasion application and high in detection work maneuverability.

Description

Technical Field

[0001] This utility model relates to an object detection device, and more particularly to a portable object detection device based on infrared emission and reception. Background Technology

[0002] Currently, object detection typically employs photoelectric sensors for beam detection, microwave radar, or even cameras. Microprocessors then process the captured signals using algorithms to achieve object detection. However, in specific applications where only the presence or absence of an object needs to be detected, existing detection technologies suffer from overly complex control circuits and expensive systems. Furthermore, photoelectric sensor beam detection requires the deployment of transmitting and receiving devices, resulting in poor mobility and adaptability in on-site detection. Summary of the Invention

[0003] The purpose of this invention is to provide a portable object detection device based on infrared emission and reception, suitable for object detection in various situations, and with low manufacturing cost.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] The portable object detection device based on infrared emission and reception of this utility model includes a frame, on which are arranged a power socket, a power switch, an AC / DC power module, a DC / DC power module, and an infrared detection circuit module. The infrared emitting tube and infrared receiving tube of the infrared detection circuit module are arranged side by side facing outward from the frame. The power switch is connected between the AC / DC power module and the power socket. The AC / DC power module is connected to the mains power through the power switch and the power socket, and converts the mains power into DC power. The output terminal of the AC / DC power module is connected to the input terminal of the DC / DC power module. The DC / DC power module is a step-down DC power converter, and its output terminal is connected to the power input terminal of the infrared detection circuit module to provide working power for the infrared detection circuit module.

[0006] Optionally, the infrared detection circuit module includes a microcontroller, an infrared emitting unit, and an infrared receiving unit; the output control terminal of the microcontroller is connected to the control input terminal of the infrared emitting unit, and is used to send a control signal to start the infrared emitting unit and control the infrared emitting tube to emit infrared signals; after the microcontroller sends the control signal, it reads the feedback signal of the infrared receiving unit to achieve the purpose of object detection.

[0007] Alternatively, to reduce manufacturing costs, the infrared emitting tube may be an infrared emitting diode, and the infrared receiving tube may be an infrared receiving diode.

[0008] This invention integrates a power socket, power switch, AC / DC power module, DC / DC power module, and infrared detection circuit module onto a frame, with the infrared receiving diode and infrared emitting diode arranged side-by-side and facing the same direction. During detection, it detects the reflected light from the object being inspected. Therefore, in detection applications, there is no need for opposing infrared emitting and receiving diodes, improving the efficiency of object detection. Furthermore, the detection device is easy to move and transport, making it suitable for a wide range of applications and highly mobile in detection work. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the structure of this utility model.

[0010] Figure 2 This is a circuit block diagram of this utility model.

[0011] Figure 3 This is the circuit schematic diagram of this utility model. Detailed Implementation

[0012] The embodiments of this utility model will be described in detail below with reference to the accompanying drawings. These embodiments are implemented based on the technical solution of this utility model and provide detailed implementation methods and specific operation processes. However, the protection scope of this utility model is not limited to the following embodiments.

[0013] It should be noted that in the description of this utility model, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0014] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0015] like Figure 1As shown, the portable object detection device based on infrared emission and reception described in this utility model includes a frame 1. A power socket 2, a power switch 3, an AC / DC power module 4, a DC / DC power module 5, and an infrared detection circuit module 6 are arranged on the bottom plate of the frame 1. The infrared emitting tube 6.1 and the infrared receiving tube 6.2 of the infrared detection circuit module are arranged side-by-side facing outwards from the frame 1. The power switch 3 is connected between the AC / DC power module 4 and the power socket 3. The AC / DC power module 4 is connected to the mains power through the power switch 3 and the power socket 2, converting the mains power into DC power. The output terminal of the AC / DC power module 4 is connected to the input terminal of the DC / DC power module 5. The DC / DC power module 5 is a step-down DC-DC converter, and its output terminal is connected to the power input terminal of the infrared detection circuit module 6, providing operating power for the infrared detection circuit module 6.

[0016] Beneficially or exemplaryly, such as Figure 2 As shown, the infrared detection circuit module 6 includes a microcontroller, an infrared emitting unit, and an infrared receiving unit. The output control terminal of the microcontroller is connected to the control input terminal of the infrared emitting unit, and is used to send control signals to start the infrared emitting unit and control the infrared emitting tube to emit infrared signals. After the microcontroller sends the control signal, it reads the infrared feedback signal emitted by the infrared receiving unit and reflected by the detected object to achieve the purpose of object detection.

[0017] Beneficially or exemplaryly, such as Figure 3 As shown, the infrared emitting unit includes an infrared emitting diode TX, a transistor Q1, and resistors R3, R2, and R1. The positive pin of the infrared emitting diode TX is connected to the operating power supply VCC, and its negative pin is connected to the collector pin of the transistor Q1 via resistor R3. The base pin of the transistor Q1 is connected to the microcontroller (MCU) output control terminal OUT via resistor R1 and grounded via resistor R2. The emitter of the transistor Q1 is grounded.

[0018] The infrared emitting unit controls the conduction of the collector and emitter of transistor Q1 through the PWM control signal sent by the microcontroller, so that the infrared emitting diode TX1 emits an infrared signal. The intensity of the emitted signal can be adjusted by resistor R3, thereby adjusting the detection distance of the object.

[0019] The infrared receiving unit includes an infrared receiving diode RX, a comparator U1, resistors R4, R5, R6, R7, and R8, and capacitors C1, C2, C3, and C4.

[0020] The positive terminal of the infrared receiving diode RX is grounded, and the negative terminal of the infrared receiving diode RX is connected to the signal input terminal IN of the microcontroller. It is also connected to the non-inverting input terminal of comparator U1 via capacitor C1, to the operating power supply VCC via resistor R4, and to ground via capacitor C2. The non-inverting input terminal of comparator U1 is connected to the operating power supply VCC via resistor R5 and to ground via resistor R6. The inverting input terminal of comparator U1 is connected to the operating power supply VCC via resistor R7, and to ground via capacitor C3 and resistor R8. The comparator output terminal is connected to the signal input terminal IN of the microcontroller.

[0021] The infrared emitting diode emits an infrared signal, which is reflected when it is blocked by object 7. The reflected infrared signal is received by the infrared receiving diode, forming a loop current flowing through the infrared receiving diode. The comparator U1 converts the current signal into a voltage signal and outputs it to the microcontroller. The microcontroller detects the voltage signal, stores it, and counts it, thereby realizing the detection function of object 7.

[0022] Finally, it should be emphasized that the above description is merely a preferred embodiment of this utility model and is not intended to limit this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still make modifications to the technical solutions described in the foregoing embodiments without creative effort, or make equivalent substitutions for some of the technical features. Therefore, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A portable object detection device based on infrared transmission and reception, characterized in that: The device includes a frame, on which are mounted a power socket, a power switch, an AC / DC power module, a DC / DC power module, and an infrared detection circuit module. The infrared emitting and receiving tubes of the infrared detection circuit module are arranged side-by-side, facing outwards from the frame. The power switch is connected between the AC / DC power module and the power socket. The AC / DC power module connects to AC mains power via the power switch and the power socket, converting AC mains power into DC power. The output terminal of the AC / DC power module is connected to the input terminal of the DC / DC power module. The DC / DC power module is a step-down DC-DC converter, and its output terminal is connected to the power input terminal of the infrared detection circuit module, providing operating power to the infrared detection circuit module.

2. The portable object detection device based on infrared transmission and reception according to claim 1, characterized in that: The infrared detection circuit module includes a microcontroller, an infrared emitting unit, and an infrared receiving unit. The output control terminal of the microcontroller is connected to the control input terminal of the infrared emitting unit, and is used to send control signals to start the infrared emitting unit and control the infrared emitting tube to emit infrared signals. At the same time, the microcontroller detects objects by reading the feedback signal from the infrared receiving unit.

3. The portable object detection device based on infrared transmission and reception according to claim 1 or 2, characterized in that: The infrared emitting tube is an infrared emitting diode, and the infrared receiving tube is an infrared receiving diode.

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