A radar sensor capable of RS485 communication

Abstract

The utility model discloses a radar inductor of RS485 communication, including upper shell, bottom shell, RJ11 crystal head external wiring, the upper shell buckle installation is on the bottom shell, forms the rectangular cavity inside, and forms the external wiring input mouth at the side of casing, installs the PCB board in rectangular cavity, the radar module, MUC module, RS485 module and wiring terminal are integrated on the PCB board, the RJ11 crystal head external wiring passes through external wiring input mouth and is connected with wiring terminal to be convenient for and external device connection, the radar module adopts radar microwave antenna, utilizes radar response to identify whether there is object activity, then tells the user through RS485 communication, reminds the user to pay attention to, and executes operation. To satisfy easy operation, safe, energy -conserving, environmental protection, healthy and convenient human body movement monitoring demand.

Description

Technical Field

[0001] This utility model relates to the field of industrial control technology, and in particular to a radar sensor capable of RS485 communication. Background Technology

[0002] There are many types of sensors on the market, including temperature and humidity sensors, water immersion sensors, smoke sensors, and infrared sensors. Their main function is to detect the environmental conditions within a certain range and then feed them back to the system to inform the user of the environmental status. With the widespread use of sensors, radar sensors are a type of sensor that uses electromagnetic waves (radar waves) to detect the position, speed, and direction of targets. They achieve their function based on the radar technology principle (emitting electromagnetic waves → receiving reflected waves → analyzing echo characteristics). Their core advantages include non-contact detection, strong penetration (able to penetrate smoke, dust, and thin obstacles), and minimal impact from light and weather. They are widely used in intelligent security, smart homes, automotive electronics, and industrial inspection. This invention proposes a radar microwave sensor to monitor the entry and exit of personnel within a certain range. Signals are transmitted to the operating platform via RS485. Compared to similar infrared sensors on the market, radar sensing has a very low false alarm rate and is negligibly affected by temperature and environmental factors. Crucially, it combines RS485 communication to systematize the monitoring information. Summary of the Invention

[0003] The purpose of this invention is to provide a radar sensor capable of RS485 communication.

[0004] The above-mentioned technical objective of this utility model is achieved through the following technical solution: An RS485-enabled radar sensor includes an upper shell, a lower shell, and an RJ11 crystal connector. The upper shell is snapped onto the lower shell, forming a rectangular cavity inside. An external wiring input port is formed on one side of the shell. A PCB board is installed inside the rectangular cavity. The PCB board integrates a radar module, a MUC module, an RS485 module, and terminal blocks. The RJ11 crystal connector passes through the external wiring input port and connects to the terminal blocks for connection to external devices. The radar module uses a radar microwave antenna to monitor the movement of objects within a certain range and upload the sensing status.

[0005] Specifically, the external wiring of the RJ11 crystal head uses a 6P6C crystal head, and its pin definitions are as follows: pin 5 defines the power supply 5V, pin 2 defines the power supply GND, pin 3 defines RS485-A, and pin 4 defines RS485-B.

[0006] Furthermore, the bottom shell has an external wiring input port at one end, which is provided with a mounting hole for mounting on other devices.

[0007] In summary, this utility model has the following beneficial effects: it uses radar sensing to identify whether there is object movement, and then informs the user of the information via RS485 communication, reminding the user to pay attention and perform actions. This meets the needs for easy operation, safety, energy saving, environmental protection, health benefits, and convenience in human movement monitoring. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of the entire machine of this utility model; Figure 2 This is a schematic diagram of the functional PCB board layout of this utility model; Figure 3 This is a schematic diagram of the radar module circuit principle of this utility model; Figure 4 This is a schematic diagram of the RS485 module communication circuit of this utility model; Figure 5 This is a schematic diagram of the power supply and MCU module circuit of this utility model; Explanation of reference numerals in the attached diagram: 1. Upper shell; 2. Bottom shell; 3. RJ11 crystal head external wiring; 4. Main body mounting hole; 5. Functional PCB board; 6. Radar module; 7. MCU module; 8. RS485 module; 9. External wiring input port; 10. Wiring terminal; 11. Radar microwave antenna. Detailed Implementation

[0009] The present invention will be further described in detail below with reference to the accompanying drawings. The technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0010] like Figure 1 and Figure 2 As shown, a radar sensor capable of RS485 communication includes an upper shell 1, a bottom shell 2, and an RJ11 crystal connector external connector 3. The upper shell 1 is fastened to the bottom shell 2, forming a rectangular cavity inside. An external connector input port 9 is formed on one side of the shell. A PCB board 5 is installed inside the rectangular cavity. The PCB board 5 integrates a radar module 6, a MUC module 7, an RS485 module 8, and a terminal block 10. The RJ11 crystal connector external connector 3 passes through the external connector input port 9 and connects to the terminal block 10 to facilitate connection with external devices. The radar module 6 uses a radar microwave antenna 11, which can monitor the movement of objects within a certain range and upload the sensing status.

[0011] Specifically, such as Figure 5As shown, the external connector 3 of the RJ11 crystal head uses a 6P6C crystal head, and its pin definitions are as follows: pin 5 defines the power supply 5V, pin 2 defines the power supply GND, pin 3 defines RS485-A, and pin 4 defines RS485-B.

[0012] Furthermore, the bottom shell 2 has an external wiring input port 9 at one end, which is provided with a main body mounting hole 4, allowing it to be mounted on other devices for installation.

[0013] Working principle: (Reference) Figure 3-5 The radar module 6 uses the radar microwave antenna 11 to monitor the movement of objects within a certain range. It senses the movement of objects within the range and provides a continuous high level to the MCU module 7 to indicate that an object is moving. The RS485 module 8 transmits data from the MCU module 7 through the RS485 transmission protocol to communicate with the outside world and transmit information.

[0014] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A radar sensor capable of RS485 communication, comprising an upper shell (1), a bottom shell (2), and an RJ11 crystal head external connector (3), wherein the upper shell (1) is fastened to the bottom shell (2), forming a rectangular cavity inside, and an external connector input port (9) is formed on one side of the shell, and a PCB board (5) is installed inside the rectangular cavity, characterized in that: The PCB board (5) integrates a radar module (6), a MUC module (7), an RS485 module (8), and a terminal block (10). The RJ11 crystal head external wire (3) passes through the external wire input port (9) and connects to the terminal block (10). The radar module (6) adopts a radar microwave antenna (11).

2. The radar sensor capable of RS485 communication according to claim 1, characterized in that: The external wiring (3) of the RJ11 crystal head uses a 6P6C crystal head.

3. A radar sensor capable of RS485 communication according to claim 2, characterized in that: The bottom shell (2) has an external wiring input port (9) at one end, and a mounting hole (4) for the main body is provided.

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