Wireless sensing device for parts

Abstract

The utility model relates to the technical field of code scanning, in particular to a wireless sensing device for parts, which comprises an infrared image sensor, a microprocessor, a Bluetooth module, a gyroscope unit, a servo motor and a power management module. The microprocessor is connected with the Bluetooth module through a serial interface and used for sending and receiving data, the gyroscope is connected with the microprocessor through an I2C interface and used for providing angle information of the image sensor in real time, the microprocessor controls rotation of the servo motor by sending PWM signals, and the servo motor adjusts the rotation angle of the infrared image sensor. According to the utility model, automatic scanning angle adjustment is realized, and working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of code scanning, in particular to a wireless sensing device for components. Background Art

[0002] In industrial automation management, unit information is needed to quickly understand the basic status of currently bound units so that appropriate management and adjustments can be made, thereby improving unit installation efficiency and ensuring safe and stable unit operation. For example, unit information can be used to view information about installed unit parts and facilitate replacement and repair.

[0003] A unit is a whole composed of multiple parts. Currently, RFID readers are primarily used to confirm the correct installation of parts. Based on the scanned part number and drawing number, a database is searched for parts already installed at a certain location. The scanned part number and drawing number can be used to identify existing parts at that location and determine whether the part to be installed is a repair or replacement.

[0004] The current hardware equipment has the following deficiencies:

[0005] 1) The effectiveness of the system depends on the correct installation of RFID tags. If the tags are lost or damaged, the system may not be able to correctly identify the location of the parts. If the part information in the system is not updated in a timely manner, the location information displayed by the system may not match the actual situation, causing misleading results.

[0006] 2) Insufficient performance and anti-interference capabilities of RFID readers may affect the accuracy and reliability of data reading, especially in places with complex electromagnetic environments. Industrial environments are usually prone to electromagnetic interference. Utility Model Content

[0007] In view of the above technical problems, the utility model provides a wireless sensing device for parts, which improves the working efficiency of scanning parts.

[0008] In order to achieve the purpose of the utility model, the technical solution adopted is: a wireless sensing device for components, including an infrared image sensor, a microprocessor, a Bluetooth module, a gyroscope unit, a servo motor and a power management module. The image data collected by the infrared image sensor is transmitted to the microprocessor through a data line. The microprocessor is connected to the Bluetooth module through a serial interface for sending and receiving data. The gyroscope is connected to the microprocessor through an I2C interface for providing real-time angle information of the image sensor. The microprocessor controls the rotation of the servo motor by sending a PWM signal. The servo motor adjusts the rotation angle of the infrared image sensor. The power management module is used to power the infrared image sensor, microprocessor, Bluetooth module, gyroscope and servo motor.

[0009] As an optimized solution of the present invention, the microprocessor is the main control chip U1, and the main control chip U1 is STM32F103CBT6.

[0010] As an optimized solution of the present utility model, the Bluetooth module includes a Bluetooth chip U5, the EN pin of the Bluetooth chip U5 is connected to the 10th pin of the main control chip U1, the TXD pin of the Bluetooth chip U5 is connected to the 13th pin of the main control chip U1, the RXD pin of the Bluetooth chip U5 is connected to the 12th pin of the main control chip U1, and the ST pin of the Bluetooth chip U5 is connected to the 11th pin of the main control chip U1.

[0011] As an optimization solution of the present invention, the gyroscope unit includes a MEMS gyroscope chip U8, a capacitor C 31 , capacitor C 25 and capacitor C 27 , the 23rd pin of the MEMS gyroscope chip U8 is connected to the 21st pin of the main control chip U1, the 24th pin of the MEMS gyroscope chip U8 is connected to the 22nd pin of the main control chip U1, the 12th pin of the MEMS gyroscope chip U8 is connected to the 25th pin of the main control chip U1, and the 22nd pin of the MEMS gyroscope chip U8 is connected to the 25th pin of the main control chip U1 through the parallel capacitor C 31 and capacitor C 25 Ground, the 10th pin of the MEMS gyroscope chip U8 is connected to the ground through the capacitor C 27 Ground.

[0012] As an optimized solution of the present utility model, the power management module includes a DC-DC power supply step-down chip U2, a capacitor C7, a polarity capacitor C8, a rectifier diode D1, a rectifier diode D2, an inductor L2, a polarity capacitor C9, a capacitor C10 and a fuse F1, the capacitor C7 and the polarity capacitor C8 in parallel are connected between the external input power supply and the ground, the rectifier diode D1 is connected between the external input power supply and the 1st pin of the DC-DC power supply step-down chip U2, the 4th pin of the DC-DC power supply step-down chip U2 is connected to the fuse F1, the 4th pin of the DC-DC power supply step-down chip U2 is grounded through the parallel polarity capacitor C9 and the capacitor C10, the 2nd pin of the DC-DC power supply step-down chip U2 is grounded through the rectifier diode D2, and the inductor L2 is connected between the 2nd pin and the 4th pin of the DC-DC power supply step-down chip U2.

[0013] As an optimization solution of the present invention, the power management module also includes a linear voltage regulator chip U3, an inductor L3, a capacitor C11, a capacitor C12, a capacitor C13 and a capacitor C14. The third pin of the linear voltage regulator chip U3 is grounded through the parallel capacitors C11 and C12. The inductor L3 is connected between the third pin of the linear voltage regulator chip U3 and the external 5V input power supply. The second pin of the linear voltage regulator chip U3 is grounded through the parallel capacitors C13 and C14.

[0014] The utility model has positive effects: 1) The utility model can maintain good recognition performance in low-light conditions by using an infrared image sensor, solving the problem of being unable to correctly identify the position of parts due to missing or damaged labels;

[0015] 2) The present invention introduces a gyroscope unit and a servo motor, which can automatically adjust the angle of the infrared image sensor, identify components in multiple installation positions, and ensure accurate scanning, greatly improving the flexibility and adaptability of the device;

[0016] 3) This utility model eliminates the need for manual adjustment of the scanning device. Through automated angle adjustment and wireless communication (Bluetooth module), a more efficient workflow is achieved, reducing manpower requirements. Furthermore, the real-time transmission of scanned data enables faster information processing and improves the overall efficiency of component installation and maintenance.

[0017] 4) This utility model ensures stable operation of the device by optimizing power management and hardware configuration, while reducing power consumption and extending battery life, allowing users to use it for long periods of time without worrying about power issues;

[0018] 5) The utility model can maintain good accuracy in obtaining the installation positions of components in industrial scenes with complex electromagnetic environments, and has a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0020] Figure 1 This is a principle block diagram of the utility model;

[0021] Figure 2 This is a circuit diagram of the microprocessor of the utility model;

[0022] Figure 3 This is a schematic diagram of the circuit principle of the Bluetooth module of the utility model;

[0023] Figure 4 This is a schematic diagram of the circuit principle of the gyroscope unit of the utility model;

[0024] Figure 5This is a schematic diagram of the circuit principle of the DC-DC power supply step-down chip of the utility model;

[0025] Figure 6 This is a schematic diagram of the circuit principle of the linear voltage regulator chip of the utility model;

[0026] Among them: 1. Infrared image sensor, 2. Microprocessor, 3. Bluetooth module, 4. Gyroscope unit, 5. Servo motor, 6. Power management module. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the embodiments of this patent clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of this utility model.

[0028] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention and its application or use. All other embodiments derived by those skilled in the art based on the embodiments of the present invention without inventive effort are intended to fall within the scope of protection of the present invention.

[0029] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present invention.

[0030] Unless otherwise specifically stated, the relative arrangement of the components and steps, numerical expressions, and numerical values ​​described in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the dimensions of the various parts shown in the accompanying drawings are not drawn according to actual proportional relationships. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail. In all examples shown and discussed herein, any specific value should be interpreted as merely exemplary and not as a limitation. Therefore, other example numerical values ​​of the exemplary embodiments may have different values.

[0031] like Figure 1 As shown, the utility model discloses a wireless sensing device for components, including an infrared image sensor 1, a microprocessor 2, a Bluetooth module 3, a gyroscope unit 4, a servo motor 5 and a power management module 6. The image data collected by the infrared image sensor 1 is transmitted to the microprocessor 2 via a data line. The microprocessor 2 is connected to the Bluetooth module 3 via a serial interface for sending and receiving data. The gyroscope 4 is connected to the microprocessor 2 via an I2C interface for providing angle information of the image sensor in real time. The microprocessor 2 controls the rotation of the servo motor 5 by sending a PWM signal. The servo motor 5 adjusts the rotation angle of the infrared image sensor 1. The power management module 6 is used to power the infrared image sensor 1, the microprocessor 2, the Bluetooth module 3, the gyroscope 4 and the servo motor 5.

[0032] Infrared image sensor 1 is the DH-EPTW430U, a full-featured infrared network camera with a high resolution of 4 megapixels. With a range of up to 100 meters, it is suitable for monitoring in low-light conditions. Combining high resolution, powerful infrared illumination, and a variety of intelligent functions, it is suitable for applications requiring high-quality images and robust nighttime monitoring capabilities.

[0033] like Figure 2 As shown, microprocessor 2 is the main control chip U1, which is the STM32F103CBT6. The STM32F103CBT6 is based on the ARM Cortex-M3 core, has an operating frequency of up to 72MHz, a power supply voltage of 3.3V, a FLASH program storage capacity of 128KB, a total RAM capacity of 20KB, 37 GPIO ports, and an ADC accuracy of 12 bits.

[0034] like Figure 3 As shown, Bluetooth module 3 includes a Bluetooth chip U5. Its EN pin is connected to pin 10 of the main control chip U1, its TXD pin is connected to pin 13 of the main control chip U1, its RXD pin is connected to pin 12 of the main control chip U1, and its ST pin is connected to pin 11 of the main control chip U1. Bluetooth chip U5 is an HC-05 Bluetooth module. The HC-05 Bluetooth module communicates with the main control chip via a serial port and can use interfaces such as UART and USB. Bluetooth communication is divided into two modes: host mode and slave mode. The HC-05 Bluetooth module can be set to either host or slave mode to communicate with other devices. The Bluetooth module can transmit various types of data, including serial port data, audio data, and image data. The VCC pin of the HC-05 Bluetooth module is connected to a 5V power supply. The Bluetooth pairing status is indicated by the level output of the HC05's ST pin. The EN pin is associated with the AT state. When the EN pin is high, the module enters AT state, during which configurations can be modified using AT commands. The EN pin is normally considered low when it is left floating.

[0035] like Figure 4 As shown, the gyroscope unit 4 includes a MEMS gyroscope chip U8, a capacitor C 31 , capacitor C 25 and capacitor C 27Pin 23 of the MEMS gyroscope chip U8 is connected to pin 21 of the main control chip U1. Pin 24 of the MEMS gyroscope chip U8 is connected to pin 22 of the main control chip U1. Pin 12 of the MEMS gyroscope chip U8 is connected to pin 25 of the main control chip U1. Pin 22 of the MEMS gyroscope chip U8 is grounded through capacitors C31 and C25 connected in parallel. Pin 10 of the MEMS gyroscope chip U8 is grounded through capacitor C27. The MEMS gyroscope chip U8 is an MPU9250 chip, which contains a 3-axis MEMS gyroscope, a 3-axis MEMS accelerometer, and a 3-axis magnetometer. The integration of the gyroscope, accelerometer, and magnetometer provides complete attitude and orientation information. Due to its high integration, low power consumption, and small size, the gyroscope unit 4 is mounted on the infrared image sensor 1.

[0036] The servo motor 5 is a micro servo motor SG90, with a torque of 1.8 kg / cm (11 g / in), a speed of 0.15 sec / 60°, and an operating voltage of 5V.

[0037] like Figure 5 As shown, the power management module includes a DC-DC power step-down chip U2, capacitor C7, polarized capacitor C8, rectifier diode D1, rectifier diode D2, inductor L2, polarized capacitor C9, capacitor C10, and fuse F1. The parallel capacitors C7 and C8 are connected between the external input power supply and ground. The rectifier diode D1 is connected between the external input power supply and pin 1 of the DC-DC power step-down chip U2. Pin 4 of the DC-DC power step-down chip U2 is connected to fuse F1. Pin 4 of the DC-DC power step-down chip U2 is grounded via the parallel capacitors C9 and C10. Pin 2 of the DC-DC power step-down chip U2 is grounded via the rectifier diode D2. Inductor L2 is connected between pins 2 and 4 of the DC-DC power step-down chip U2. The power management module needs to step down the DC 24V external battery power supply voltage to a stable power supply voltage of 5V and 3.3V. The 5V is used to power the infrared image sensor 1, Bluetooth module 3, and servo motor 5. The DC-DC power step-down chip U2 is the LM2596S-5.0. This chip requires only a few peripheral components, saving space and cost. It has a maximum input voltage of 40V, an output voltage of 5V, a maximum load current of 3A, an internal switching frequency of 150kHz, overload and overheat protection, and low power consumption.

[0038] like Figure 6As shown, the power management module also includes a linear voltage regulator chip U3, an inductor L3, capacitors C11, C12, C13, and C14. Pin 3 of the linear voltage regulator chip U3 is grounded via capacitors C11 and C12 connected in parallel. Inductor L3 is connected between pin 3 of the linear voltage regulator chip U3 and the external 5V input power supply. Pin 2 of the linear voltage regulator chip U3 is grounded via capacitors C13 and C14 connected in parallel. A stable 3.3V power supply is used to power microprocessor 2 and gyroscope unit 4. Linear voltage regulator chip U3 is an AMS1117-3.3 linear voltage regulator chip. As a level converter chip for the 5V to 3.3V conversion circuit, this chip offers advantages such as good stability, low output ripple, and high output voltage accuracy. It has a maximum output current of 1A and an output accuracy of 1%. Its maximum input voltage is 18V, and its output voltage is 3.3V.

[0039] The wireless component sensing device is designed to address challenges encountered in industrial automation management when using RFID readers to confirm component installation locations, such as fragile RFID tags and unstable data reading. By integrating an infrared image sensor, a microprocessor, a Bluetooth module, a gyroscope unit, a servo motor, and a power management module, the device enables accurate and reliable component identification and management in complex environments.

[0040] During operation, infrared image sensor 1 captures images of components, providing clear image information even in low-light conditions. Microprocessor 2 receives these images and automatically adjusts the angle of infrared image sensor 1 using gyroscope unit 4 and servo motor 5 to improve recognition success rate. The servo motor precisely changes its angle based on the received signal, ensuring that the image sensor accurately captures the component's precise location. Simultaneously, data is wirelessly transmitted via Bluetooth module 3, enabling timely processing and recording. The entire system is powered by an efficient power management module, ensuring stable performance. Component status is continuously monitored, and data is received and transmitted via Bluetooth module, ensuring real-time updates. Based on component usage and historical data, the system generates maintenance recommendations and formulates a reasonable maintenance plan to extend the equipment's lifespan.

[0041] The wireless sensing device for parts not only overcomes the problems of easy damage and unstable reading of RFID tags, but also improves the efficiency of scanning parts through automation and wireless communication technology, ensuring the safe and stable operation of the unit.

[0042] The specific embodiments described above further illustrate the purpose, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A wireless sensing device for components, characterized in that: The invention comprises an infrared image sensor (1), a microprocessor (2), a Bluetooth module (3), a gyroscope unit (4), a servo motor (5) and a power management module (6). Image data collected by the infrared image sensor (1) is transmitted to the microprocessor (2) via a data line. The microprocessor (2) is connected to the Bluetooth module (3) via a serial interface for sending and receiving data. The gyroscope unit (4) is connected to the microprocessor (2) via an I2C interface for providing angle information of the image sensor in real time. The microprocessor (2) controls the rotation of the servo motor (5) by sending a PWM signal. The servo motor (5) adjusts the rotation angle of the infrared image sensor (1). The power management module (6) is used to supply power to the infrared image sensor (1), the microprocessor (2), the Bluetooth module (3), the gyroscope unit (4) and the servo motor (5).

2. The wireless sensing device for components according to claim 1, characterized in that: The microprocessor (2) is the main control chip U1, and the main control chip U1 is STM32F103CBT6.

3. The wireless sensing device for components according to claim 2, characterized in that: The Bluetooth module (3) includes a Bluetooth chip U5, an EN pin of the Bluetooth chip U5 is connected to the 10th pin of the main control chip U1, a TXD pin of the Bluetooth chip U5 is connected to the 13th pin of the main control chip U1, a RXD pin of the Bluetooth chip U5 is connected to the 12th pin of the main control chip U1, and an ST pin of the Bluetooth chip U5 is connected to the 11th pin of the main control chip U1.

4. The wireless sensing device for components according to claim 3, characterized in that: The gyroscope unit (4) includes a MEMS gyroscope chip U8, a capacitor C 31 , capacitor C 25 and capacitor C 27 , the 23rd pin of the MEMS gyroscope chip U8 is connected to the 21st pin of the main control chip U1, the 24th pin of the MEMS gyroscope chip U8 is connected to the 22nd pin of the main control chip U1, the 12th pin of the MEMS gyroscope chip U8 is connected to the 25th pin of the main control chip U1, and the 22nd pin of the MEMS gyroscope chip U8 is connected to the 25th pin of the main control chip U1 through the parallel capacitor C 31 and capacitor C 25 Ground, the 10th pin of the MEMS gyroscope chip U8 is connected to the ground through the capacitor C 27 Ground.

5. The wireless sensing device for components according to claim 4, characterized in that: The power management module (6) includes a DC-DC power step-down chip U2, a capacitor C7, a polar capacitor C8, a rectifier diode D1, a rectifier diode D2, an inductor L2, a polar capacitor C9, a capacitor C10 and a fuse F1. The capacitor C7 and the polar capacitor C8 are connected in parallel between an external input power supply and ground. The rectifier diode D1 is connected between the external input power supply and the first pin of the DC-DC power step-down chip U2. The fourth pin of the DC-DC power step-down chip U2 is connected to the fuse F1. The fourth pin of the DC-DC power step-down chip U2 is grounded through the parallel polar capacitor C9 and the capacitor C10. The second pin of the DC-DC power step-down chip U2 is grounded through the rectifier diode D2. The inductor L2 is connected between the second pin and the fourth pin of the DC-DC power step-down chip U2.

6. The wireless sensing device for components according to claim 5, characterized in that: The power management module (6) further comprises a linear voltage regulator chip U3, an inductor L3, a capacitor C11, a capacitor C12, a capacitor C13 and a capacitor C14, wherein the third pin of the linear voltage regulator chip U3 is grounded via the capacitors C11 and C12 connected in parallel, the inductor L3 is connected between the third pin of the linear voltage regulator chip U3 and an external 5V input power supply, and the second pin of the linear voltage regulator chip U3 is grounded via the capacitors C13 and C14 connected in parallel.

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