A subway spare parts warehouse management system

Abstract

This application provides a subway spare parts warehouse management system, belonging to the field of warehouse management technology. The system includes a main control module, an RFID high-frequency device, and a data transmission module. The RFID high-frequency device is used to read electronic tags on spare parts. The main control module is connected to the RFID high-frequency device and is used to send tag reading commands to the RFID high-frequency device, receive and process the data information of the electronic tags returned by the RFID high-frequency device. The main control module is also connected to the data transmission module and is used to upload the data information of the electronic tags to the cloud. By using the RFID high-frequency device to read the electronic tags on spare parts and reading the TID area data, the number of tags within the range can be accurately determined, making it easy to achieve spare parts inventory statistics.

Description

Technical Field

[0001] This utility model belongs to the field of warehouse management technology, and in particular relates to a subway spare parts warehouse management system. Background Technology

[0002] Subway systems involve a wide variety of equipment. To ensure the smooth operation and maintenance of daily operations, it is generally necessary to establish equipment spare parts warehouses according to specialties and lines to meet the supply of spare parts during equipment maintenance.

[0003] There are many types and large quantities of spare parts for subway equipment, and some of them are expensive. Therefore, it is necessary to establish a spare parts warehouse management system to manage the spare parts.

[0004] Traditional paper-based ledger management relies on manual data entry (such as warehouse entry and exit registration and inventory counting), which poses risks of data lag and errors.

[0005] Therefore, this utility model provides a subway spare parts warehouse management system. Utility Model Content

[0006] This utility model provides a subway spare parts warehouse management system to at least solve the problems of data lag and error risk in the traditional paper-based ledger management system that relies on manual data entry (such as warehouse entry and exit registration and inventory counting).

[0007] The system includes: a main control module, an RFID high-frequency device, and a data transmission module;

[0008] The RFID high-frequency device is used to read the electronic tags on spare parts;

[0009] The main control module is connected to the RFID high-frequency device and is used to send tag reading instructions to the RFID high-frequency device and receive and process the data information of the electronic tags returned by the RFID high-frequency device.

[0010] The main control module is connected to the data transmission module and is used to upload the data information of the electronic tag to the cloud.

[0011] Furthermore, the main control module includes RFID pins and data transmission pins;

[0012] The main control module is connected to the RFID high-frequency device through the RFID pin, and is used to send tag reading instructions to the RFID high-frequency device and receive and process the data information of the electronic tags returned by the RFID high-frequency device.

[0013] The main control module is connected to the data transmission module through the data transmission pin, and is used to upload the data information of the electronic tag to the cloud.

[0014] Furthermore, the RFID high-frequency device includes several sets of antennas and an RFID module;

[0015] The RFID module includes an RFID interface J6 and a capacitor C49;

[0016] The RFID interface J6 includes a first ground pin GND, a second ground pin GND, a first power supply positive pin VCC, a second power supply positive pin VCC, a receive data pin RXD, a transmit data pin TXD, and an enable pin EN.

[0017] The receive data pin RXD is connected to the PC10 pin of the main control module;

[0018] The transmit data pin TXD is connected to the PC11 pin of the main control module;

[0019] The enable pin EN is connected to the PD0 pin of the main control module;

[0020] The first terminal of capacitor C49 is connected to the first ground pin GND, the second ground pin GND, and ground.

[0021] The second terminal of capacitor C49 is connected to the first power supply positive pin VCC, the second power supply positive pin VCC, and the 5V power supply.

[0022] Furthermore, the data transmission module includes a WiFi module interface J7 and a capacitor C43;

[0023] The WiFi module interface J7 includes a receive data pin RXD, a transmit data pin TXD, a power supply positive pin VCC, and a ground pin GND.

[0024] The receive data pin RXD is connected to the PB10 pin of the main control module, and the transmit data pin TXD is connected to the PB11 pin of the main control module.

[0025] The first terminal of capacitor C43 is connected to the ground pin GND and ground.

[0026] The second terminal of capacitor C43 is connected to the positive power supply pin VCC and the 3.3V power supply.

[0027] Furthermore, the system also includes a display module, which includes a display interface J4 and a capacitor C42;

[0028] The display interface J4 includes CS2 pin, FSO pin, CS1 pin, DC pin, RES pin, SDA pin, SCL pin, VCC pin, and GND pin;

[0029] The chip select signal CS2 is connected to the PC12 pin of the main control module;

[0030] The spare pin FSO is connected to the PB4 pin of the main control module;

[0031] The chip select signal CS1 is connected to the PC0 pin of the main control module;

[0032] The data / command control pin DC is connected to the PB3 pin of the main control module;

[0033] The reset pin RES is connected to the PB5 pin of the main control module;

[0034] The serial data line pin SDA is connected to the PC1 pin of the main control module;

[0035] The serial clock line pin SCL is connected to the PC3 pin of the main control module;

[0036] The first end of capacitor C42 is connected to the 3.3V power supply and the power supply pin VCC, and the second end of capacitor C42 is connected to the ground pin GND and ground.

[0037] Furthermore, the system also includes an infrared remote control module, which includes an infrared receiver J16, a capacitor C40, and a resistor R27.

[0038] The infrared receiver J16 includes a power supply positive pin VCC, a ground pin GND, and an output pin OUT.

[0039] The first terminal of capacitor C40 is connected to the 5V power supply and the positive power supply pin VCC of infrared receiver J16;

[0040] The second terminal of capacitor C40 is connected to ground and the ground pin GND of infrared receiver J16;

[0041] The first end of resistor R27 is connected to the output pin OUT of infrared receiver J16;

[0042] The second terminal of resistor R27 is connected to a 5V power supply;

[0043] The output pin OUT is connected to the PC2 pin of the main control module.

[0044] Furthermore, the main control module adopts an STM32F103 series microcontroller;

[0045] The RFID high-frequency device uses an IndyR2000 series RFID module.

[0046] The data transmission module uses an ESP32 series WiFi module.

[0047] Furthermore, the display module uses a 2.4-inch OLED liquid crystal display screen.

[0048] As can be seen from the above technical solutions, this utility model has the following advantages:

[0049] The subway spare parts warehouse management system provided in this application utilizes RFID high-frequency devices to read the electronic tags of spare parts. By reading the TID area data, the number of tags within the range can be accurately determined, easily enabling spare parts inventory statistics. Data is uploaded to the cloud via a data transmission module for real-time statistics and updates of spare parts inventory. Staff can view spare parts stock and outbound status on the cloud, enhancing spare parts warehouse management. This device simplifies spare parts inventory counting and improves efficiency. Attached Figure Description

[0050] To more clearly illustrate the technical solution of this application, the accompanying drawings used in the description will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0051] Figure 1 This is a framework diagram of the subway spare parts warehouse management system.

[0052] Figure 2 This is a circuit diagram of the main control module of the subway spare parts warehouse management system.

[0053] Figure 3 This is a circuit diagram of the RFID module in a subway spare parts warehouse management system.

[0054] Figure 4 This is a circuit diagram of the data transmission module for the subway spare parts warehouse management system.

[0055] Figure 5 This is a circuit diagram of the display module for a subway spare parts warehouse management system.

[0056] Figure 6 This is a circuit diagram of the infrared remote control module for a subway spare parts warehouse management system. Detailed Implementation

[0057] To make the purpose, features, and advantages of this application more apparent and understandable, specific embodiments and accompanying drawings will be used to clearly and completely describe the technical solution protected by this application. Obviously, the embodiments described below are only some embodiments of this application, and not all embodiments. Based on the embodiments in this patent, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this patent.

[0058] This application provides a subway spare parts warehouse management system, which solves the technical problem that the current subway spare parts warehouse management system urgently needs to eliminate the reliance on manual data entry (such as inbound and outbound registration and inventory counting) in traditional paper-based ledger management, which has the risk of data lag and errors.

[0059] The technical solutions proposed in the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0060] Figure 1 This is a framework diagram of a subway spare parts warehouse management system provided in an embodiment of this application. Figure 1 As shown in the figure, an embodiment of this application provides a subway spare parts warehouse management system, the system including: a main control module, an RFID high-frequency device and a data transmission module;

[0061] The RFID high-frequency device is used to read the electronic tags on spare parts;

[0062] The main control module is connected to the RFID high-frequency device and is used to send tag reading instructions to the RFID high-frequency device and receive and process the data information of the electronic tags returned by the RFID high-frequency device.

[0063] The main control module is connected to the data transmission module and is used to upload the data information of the electronic tag to the cloud.

[0064] The main control module uses an STM32F103 series microcontroller; the RFID high-frequency device uses an IndyR2000 series RFID module. The data transmission module uses an ESP32 series WiFi module. In use, it is configured with a network via the Esptouch software on a mobile phone, establishes a connection with the corresponding AP, and sends the tag data received from the main control module to the cloud via the TCP / IP protocol.

[0065] It should be noted that the RFID high-frequency device is used to read the TID area data and EPC storage area data of the electronic tags on the spare parts. The TID area data is the unique ID number of the electronic tag. When electronic tags from the same batch appear, that is, when the EPC numbers are the same, the number of tags within the range can be accurately determined by reading the TID area data. The EPC storage area data contains the name, specifications, equipment to which the spare parts belong, and replacement instructions that are stored in advance. By reading the EPC storage area data, the name, specifications, equipment to which the spare parts belong, and replacement instructions can be obtained.

[0066] Electronic tags are affixed to spare parts, and each type of spare part is coded according to a coding rule. When a spare part is issued or received, the electronic tag is read using an RFID high-frequency device. By reading the TID area data, the number of tags within the range can be accurately determined, making spare parts inventory statistics easy to achieve. The data is uploaded to the cloud via a data transmission module, allowing for real-time statistics and updates of spare parts inventory. Staff can view spare parts stock and issuance status directly in the cloud, enhancing spare parts warehouse management. This device makes spare parts inventory counting easier and more efficient.

[0067] The recipient of the spare parts only needs to swipe the electronic tag of the spare parts on the RFID high-frequency device to view the name, specifications, equipment to which the spare parts belong, and replacement instructions in the cloud, which helps maintenance personnel respond quickly to repairs.

[0068] The main control module includes RFID pins and data transmission pins;

[0069] The main control module is connected to the RFID high-frequency device through the RFID pin, and is used to send tag reading instructions to the RFID high-frequency device and receive and process the data information of the electronic tags returned by the RFID high-frequency device.

[0070] The main control module is connected to the data transmission module through the data transmission pin, and is used to upload the data information of the electronic tag to the cloud.

[0071] According to the provided circuit diagram, the main control module is an STM32F103 series microcontroller, which mainly includes the following pins:

[0072] Backup battery input pin VBAT;

[0073] External clock input pin OSCIN, external clock input pin PC14_OSC32_IN, external clock output pin OSCOUT, external clock output pin PC15_OSC32_OUT;

[0074] Power input pin VDD_1VCC, ground pin VSS_1GND, power input pin VDD_2VCC, ground pin VSS_2GND, power input pin VDD_3VCC, ground pin VSS_3GND, power input pin VDD_4VCC, ground pin VSS_4GND, power input pin VDD_5VCC, ground pin VSS_5GND;

[0075] Reset pin NRST;

[0076] Infrared remote control pin: PC2 pin; PC2 pin is connected to the infrared receiver J16 of the infrared remote control module; PC2 pin is connected to the output pin OUT of the infrared receiver J16.

[0077] Display pins: PC0, PC1, PC3, PB5, PB4, PB3, and PC12; among them, PC0, PC1, PC3, PB5, PB4, PB3, and PC12 are all connected to the display module; specifically, they are connected to the display interface J4 of the display module; PC0 is connected to the chip select signal CS1 pin of the display interface J4; PC1 is connected to the serial data line pin SDA of the display interface J4; PC3 is connected to the serial clock line pin SCL of the display interface J4; PB5 is connected to the reset pin RES of the display interface J4; PB4 is connected to the spare pin FSO of the display interface J4; PB3 is connected to the data / command control pin DC of the display interface J4; and PC12 is connected to the chip select signal CS2 pin of the display interface J4.

[0078] RFID pins: PC10 pin, PC11 pin, PD0 pin; among them, PC10 pin, PC11 pin, and PD0 pin are all connected to the RFID high-frequency device; specifically, they are connected to the RFID interface J6 of the RFID high-frequency device; PC10 pin is connected to the receive data pin RXD of the RFID interface J6; PC11 pin is connected to the transmit data pin TXD of the RFID interface J6; PD0 pin is connected to the enable pin EN of the RFID interface J6.

[0079] Data transmission pins: PB10 and PB11; both PB10 and PB11 are connected to the data transmission module; specifically, they are connected to the RFID interface J6 of the data transmission module; PB10 is connected to the receive data pin RXD of the RFID interface J6; PB11 is connected to the transmit data pin TXD of the RFID interface J6.

[0080] The main control module also includes the following peripheral circuits:

[0081] The backup power circuit includes diode D7. The positive terminal of diode D7 is connected to the 3.3V power supply, and the negative terminal of diode D7 is connected to the backup battery input pin VBAT of the main control module. Diode D7 is used to prevent reverse power connection and protect the circuit.

[0082] The first power supply circuit includes a decoupling capacitor C44. The first end of the decoupling capacitor C44 is connected to ground and the ground pin VSS_1GND of the main control module; the second end of the decoupling capacitor C44 is connected to the 3.3V power supply and the power input pin VDD_1VCC of the main control module.

[0083] The second power supply circuit includes a decoupling capacitor C45. The first terminal of the decoupling capacitor C45 is connected to ground and the ground pin VSS_2GND of the main control module; the second terminal of the decoupling capacitor C45 is connected to the 3.3V power supply and the power input pin VDD_2VCC of the main control module.

[0084] The third power supply circuit includes a decoupling capacitor C46. The first terminal of the decoupling capacitor C46 is connected to ground and the ground pin VSS_3GND of the main control module; the second terminal of the decoupling capacitor C46 is connected to the 3.3V power supply and the power input pin VDD_3VCC of the main control module.

[0085] The fourth power supply circuit includes a decoupling capacitor C47. The first terminal of the decoupling capacitor C47 is connected to ground and the ground pin VSS_4GND of the main control module; the second terminal of the decoupling capacitor C47 is connected to the 3.3V power supply and the power input pin VDD_4VCC of the main control module.

[0086] The fifth power supply circuit includes a decoupling capacitor C48. The first terminal of the decoupling capacitor C48 is connected to ground and the ground pin VSS_5GND of the main control module; the second terminal of the decoupling capacitor C48 is connected to the 3.3V power supply and the power input pin VDD_5VCC of the main control module.

[0087] Among them, decoupling capacitors C44, C45, C46, ​​C47, and C48 are all used to filter out power supply noise and provide a stable power supply voltage.

[0088] The clock circuit includes crystal oscillator Y3, crystal oscillator Y2, crystal capacitor C60, crystal capacitor C61, crystal capacitor C50, and crystal capacitor C51.

[0089] The first terminal of crystal capacitor C60 is connected to the first terminal of crystal capacitor C61 and then grounded. The second terminal of crystal capacitor C60 is connected to the first terminal of crystal Y3 and then connected to the external clock input pin PC14_OSC32_IN of the main control module. The second terminal of crystal capacitor C61 is connected to the second terminal of crystal Y3 and then connected to the external clock output pin PC15_OSC32_OUT of the main control module.

[0090] The first terminal of crystal capacitor C50 is connected to the first terminal of crystal capacitor C51 and then grounded. The second terminal of crystal capacitor C51 is connected to the first terminal of crystal Y2 and then connected to the external clock input pin OSCIN of the main control module. The second terminal of crystal capacitor C50 is connected to the second terminal of crystal Y2 and then connected to the external clock output pin OSCOUT of the main control module.

[0091] Crystal oscillators Y3 and Y2 are used to provide the clock signal required by the microcontroller; crystal capacitors C60, C61, C50, and C51 work together with crystal oscillators Y3 and Y2 to stabilize the oscillation frequency.

[0092] The reset circuit includes a reset button S3, a pull-up resistor R23, and a decoupling capacitor C52. The first end of the pull-up resistor R23 is connected to a 3.3V power supply, and the second end of the pull-up resistor R23 is connected to the first end of the reset button S3, the first end of the decoupling capacitor C52, and the reset pin NRST of the main control module. The second end of the reset button S3 and the second end of the decoupling capacitor C52 are connected to ground.

[0093] When the reset button S3 is pressed, the reset pin NRST is pulled low, triggering the microcontroller to reset. When the reset button S3 is not pressed, the reset pin NRST is pulled high, maintaining normal operation of the microcontroller. The decoupling capacitor C52 is used to filter out noise in the reset signal.

[0094] The RFID high-frequency device includes several sets of antennas and RFID modules; these antennas and modules enable real-time detection of spare parts through multiple channels. The antennas are elongated linearly polarized antennas, which allow for better adjustment of the reading range and prevent missed or misreads.

[0095] The RFID module includes an RFID interface J6 and a capacitor C49;

[0096] The RFID interface J6 includes a first ground pin GND, a second ground pin GND, a first power supply positive pin VCC, a second power supply positive pin VCC, a receive data pin RXD, a transmit data pin TXD, and an enable pin EN.

[0097] The receive data pin RXD is connected to the PC10 pin of the main control module;

[0098] The transmit data pin TXD is connected to the PC11 pin of the main control module;

[0099] The enable pin EN is connected to the PD0 pin of the main control module;

[0100] The first terminal of capacitor C49 is connected to the first ground pin GND, the second ground pin GND, and ground.

[0101] The second terminal of capacitor C49 is connected to the first power supply positive pin VCC, the second power supply positive pin VCC, and the 5V power supply.

[0102] Combination Figure 3 The functions of each pin of the RFID interface J6:

[0103] The first ground pin, GND, provides the circuit's reference ground.

[0104] Second ground pin GND: Used to provide additional ground connection or reduce ground impedance;

[0105] The first power supply positive pin, VCC, provides the operating voltage for the module.

[0106] The second power supply positive pin VCC may be used to provide additional power connection or increase power stability.

[0107] The general purpose input / output pin GPIO33 can be configured as an input or output mode for general I / O operations;

[0108] General purpose input / output pin GPIO4: Also configured as input or output mode;

[0109] General purpose input / output pin GPIO1: Used for general I / O operations;

[0110] Buzzer pins: Pins connected to the buzzer, used to control the buzzer to produce sound;

[0111] Receive data pin RXD: Used for serial communication, receiving data sent by the main control module;

[0112] Transmit data pin TXD: Used for serial communication, transmitting data to the main control module;

[0113] USB data line negative pin USB_DM: used for USB communication;

[0114] USB data cable positive pin USB_DP: Used for USB communication;

[0115] General purpose input / output pin GPIO2: Used for general I / O operations;

[0116] Enable pin EN: Used to enable or disable the module;

[0117] General Purpose Input / Output Pin GPIO5: Used for general I / O operations.

[0118] The first terminal of capacitor C49 is connected to the first ground pin GND, the second ground pin GND, and ground; the second terminal of capacitor C49 is connected to the first power supply positive pin VCC, the second power supply positive pin VCC, and the 5V power supply. Capacitor C49 is connected between the 5V power supply and ground for power supply decoupling, to reduce power supply noise and stabilize voltage.

[0119] The data transmission module includes a WiFi module interface J7 and a capacitor C43;

[0120] The WiFi module interface J7 includes a receive data pin RXD, a transmit data pin TXD, a power supply positive pin VCC, and a ground pin GND.

[0121] The receive data pin RXD is connected to the PB10 pin of the main control module, and the transmit data pin TXD is connected to the PB11 pin of the main control module.

[0122] The first terminal of capacitor C43 is connected to the ground pin GND and ground.

[0123] The second terminal of capacitor C43 is connected to the positive power supply pin VCC and the 3.3V power supply.

[0124] Combination Figure 4 The functions of each pin on the WiFi module interface J7:

[0125] General purpose input / output pins IO_O: Configured as input or output modes for specific functions or signal control;

[0126] Reset pin RST: Used to reset the WiFi module, returning it to its initial state;

[0127] Receive data pin RXD: Used to receive data from the microcontroller, typically used for serial communication (such as UART);

[0128] Transmit data pin TXD: Used to transmit data to the microcontroller, typically used for serial communication (such as UART);

[0129] Ground pin GND: Provides a reference ground for the circuit;

[0130] Power supply positive pin VCC: Provides operating voltage for the WiFi module.

[0131] The first terminal of capacitor C43 is connected to the ground pin GND and earth; the second terminal of capacitor C43 is connected to the power supply positive pin VCC and 3.3V power supply.

[0132] Capacitor C43 is connected between the 3.3V power supply and ground, and is typically used for power supply decoupling to reduce power supply noise and stabilize voltage.

[0133] The system also includes a display module, which uses a 2.4-inch OLED liquid crystal display screen.

[0134] The display module includes a display interface J4 and a capacitor C42; the display interface J4 includes CS2 pin, FSO pin, CS1 pin, DC pin, RES pin, SDA pin, SCL pin, VCC pin and GND pin.

[0135] The chip select signal CS2 is connected to the PC12 pin of the main control module; the spare pin FSO is connected to the PB4 pin of the main control module; the chip select signal CS1 is connected to the PC0 pin of the main control module; the data / command control pin DC is connected to the PB3 pin of the main control module; the reset pin RES is connected to the PB5 pin of the main control module; the serial data line pin SDA is connected to the PC1 pin of the main control module; the serial clock line pin SCL is connected to the PC3 pin of the main control module; the first end of capacitor C42 is connected to the 3.3V power supply and the power supply pin VCC, and the second end of capacitor C42 is connected to the ground pin GND and ground.

[0136] Figure 5 This is a circuit diagram of the display module, which includes a display interface J4 and a capacitor C42; combined with... Figure 5 The functions of each pin on a 2.4-inch OLED LCD screen:

[0137] Chip select signal CS2: Used to select the OLED display for communication. In the SPI communication protocol, this pin is used to activate a specific device.

[0138] Spare pin FSO;

[0139] Chip select signal CS1: Also used to select the OLED display for communication. Different chip select signals are used in different communication protocols or configurations.

[0140] Data / Command Control Pin DC: Used to distinguish whether data or commands are sent to the display screen;

[0141] Reset pin RES: Used to reset the OLED display;

[0142] Serial data line pin SDA: Used for data transmission in the I2C communication protocol;

[0143] Serial clock line pin SCL: Used for clock synchronization in the I2C communication protocol;

[0144] VCC power supply pin: provides the operating voltage for the display screen;

[0145] Ground pin GND: Provides a ground reference for the display.

[0146] The first terminal of capacitor C42 is connected to the 3.3V power supply and the power supply pin VCC, and the second terminal of capacitor C42 is connected to the ground pin GND and ground.

[0147] Capacitor C42 is connected between the 3.3V power supply and ground for power supply decoupling, in order to reduce power supply noise and stabilize voltage.

[0148] The pins of the display interface J4 are connected to the main control module, and the specific connection relationships are as follows:

[0149] The chip select signal CS2 is connected to the PC12 pin of the main control module;

[0150] The spare pin FSO is connected to the PB4 pin of the main control module;

[0151] The chip select signal CS1 is connected to the PC0 pin of the main control module;

[0152] The data / command control pin DC is connected to the PB3 pin of the main control module;

[0153] The reset pin RES is connected to the PB5 pin of the main control module;

[0154] The serial data line pin SDA is connected to the PC1 pin of the main control module;

[0155] The serial clock line pin SCL is connected to the PC3 pin of the main control module.

[0156] The display module is used to receive and display information such as the name, specifications, equipment to which the spare parts belong, and replacement instructions transmitted by the main control module.

[0157] The recipient of the spare parts only needs to swipe the electronic tag of the spare part on the RFID high-frequency device to check the name, specifications, equipment to which it belongs, and replacement instructions, which helps maintenance personnel respond quickly to repairs.

[0158] The system also includes an infrared remote control module, which includes an infrared receiver J16, a capacitor C40, and a resistor R27.

[0159] The infrared receiver J16 includes a power supply positive pin VCC, a ground pin GND, and an output pin OUT.

[0160] The first terminal of capacitor C40 is connected to the 5V power supply and the positive power supply pin VCC of infrared receiver J16;

[0161] The second terminal of capacitor C40 is connected to ground and the ground pin GND of infrared receiver J16;

[0162] The first end of resistor R27 is connected to the output pin OUT of infrared receiver J16;

[0163] The second terminal of resistor R27 is connected to a 5V power supply;

[0164] The output pin OUT is connected to the PC2 pin of the main control module.

[0165] Combination Figure 6 The functions of each pin of the infrared receiver J16:

[0166] The positive power supply pin VCC provides the operating voltage for the infrared receiver J16 and is connected to a 5V power supply.

[0167] Ground pin GND: Provides a reference ground for the circuit;

[0168] Output pin OUT: When the infrared receiver J16 receives an infrared signal, this pin outputs a signal, usually a pulse or a level change, to notify the main control module to perform corresponding processing.

[0169] The first terminal of capacitor C40 is connected to the 5V power supply and the positive power supply pin VCC of infrared receiver J16;

[0170] The second terminal of capacitor C40 is connected to ground and the ground pin GND of infrared receiver J16;

[0171] The first end of resistor R27 is connected to the output pin OUT of infrared receiver J16;

[0172] The second terminal of resistor R27 is connected to a 5V power supply;

[0173] Capacitor C40 is an electrolytic capacitor used for power supply decoupling to reduce power supply noise and stabilize voltage. It is connected between the 5V power supply and ground and helps filter out high-frequency noise on the power line.

[0174] Resistor R27 is a pull-up resistor connected between the 5V power supply and the output pin of the infrared receiver head. It ensures that the output pin remains high when no infrared signal is received. When the infrared receiver head receives a signal, the output pin is pulled low to ground to ensure stable operation and accurate transmission of the received infrared signal to the main control module.

[0175] The information sent by the remote control is received through the infrared receiver J16 and sent to the main control module through the output pin OUT.

[0176] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0177] For those skilled in the art, designing different forms of control circuits based on the teachings of this invention does not require creative effort. Changes, modifications, substitutions, and variations made to the embodiments without departing from the principles and spirit of this invention still fall within the protection scope of this invention.

Claims

1. A subway spare parts warehouse management system characterized by, The system includes: a main control module, an RFID high-frequency device, and a data transmission module; The RFID high-frequency device is used to read the electronic tags on spare parts; The main control module is connected to the RFID high-frequency device and is used to send tag reading instructions to the RFID high-frequency device and receive and process the data information of the electronic tags returned by the RFID high-frequency device. The main control module is connected to the data transmission module and is used to upload the data information of the electronic tag to the cloud. The main control module includes RFID pins and data transmission pins; The main control module is connected to the RFID high-frequency device through the RFID pin, and is used to send tag reading instructions to the RFID high-frequency device and receive and process the data information of the electronic tags returned by the RFID high-frequency device. The main control module is connected to the data transmission module via the data transmission pin, and is used to upload the data information of the electronic tag to the cloud; RFID high-frequency devices include several sets of antennas and RFID modules; The RFID module includes an RFID interface J6 and a capacitor C49; The RFID interface J6 includes a first ground pin GND, a second ground pin GND, a first power supply positive pin VCC, a second power supply positive pin VCC, a receive data pin RXD, a transmit data pin TXD, and an enable pin EN. The receive data pin RXD is connected to the PC10 pin of the main control module; The transmit data pin TXD is connected to the PC11 pin of the main control module; The enable pin EN is connected to the PD0 pin of the main control module; The first terminal of capacitor C49 is connected to the first ground pin GND, the second ground pin GND, and ground. The second terminal of capacitor C49 is connected to the first power supply positive pin VCC, the second power supply positive pin VCC, and the 5V power supply.

2. The subway spare parts warehouse management system according to claim 1, wherein The data transmission module includes a WiFi module interface J7 and a capacitor C43; The WiFi module interface J7 includes a receive data pin RXD, a transmit data pin TXD, a power supply positive pin VCC, and a ground pin GND. The receive data pin RXD is connected to the PB10 pin of the main control module, and the transmit data pin TXD is connected to the PB11 pin of the main control module. The first terminal of capacitor C43 is connected to the ground pin GND and ground. The second terminal of capacitor C43 is connected to the positive power supply pin VCC and the 3.3V power supply.

3. The subway spare parts warehouse management system according to claim 2, wherein The system also includes a display module, which includes a display interface J4 and a capacitor C42; The display interface J4 includes CS2 pin, FSO pin, CS1 pin, DC pin, RES pin, SDA pin, SCL pin, VCC pin, and GND pin; The chip select signal CS2 is connected to the PC12 pin of the main control module; The spare pin FSO is connected to the PB4 pin of the main control module; The chip select signal CS1 is connected to the PC0 pin of the main control module; The data / command control pin DC is connected to the PB3 pin of the main control module; The reset pin RES is connected to the PB5 pin of the main control module; The serial data line pin SDA is connected to the PC1 pin of the main control module; The serial clock line pin SCL is connected to the PC3 pin of the main control module; The first end of capacitor C42 is connected to the 3.3V power supply and the power supply pin VCC, and the second end of capacitor C42 is connected to the ground pin GND and ground.

4. The subway spare parts warehouse management system of claim 3, wherein The system also includes an infrared remote control module, which includes an infrared receiver J16, a capacitor C40, and a resistor R27. The infrared receiver J16 includes a power supply positive pin VCC, a ground pin GND, and an output pin OUT. The first terminal of capacitor C40 is connected to the 5V power supply and the positive power supply pin VCC of infrared receiver J16; The second terminal of capacitor C40 is connected to ground and the ground pin GND of infrared receiver J16; The first end of resistor R27 is connected to the output pin OUT of infrared receiver J16; The second terminal of resistor R27 is connected to a 5V power supply; The output pin OUT is connected to the PC2 pin of the main control module.

5. The subway spare parts warehouse management system of claim 4, wherein The main control module uses an STM32F103 series microcontroller; The RFID high-frequency device uses an IndyR2000 series RFID module. The data transmission module uses an ESP32 series WiFi module.

6. The subway spare parts warehouse management system of claim 4, wherein The display module uses a 2.4-inch OLED LCD screen.

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