Multifunctional electronic tag based on bluetooth communication

Abstract

The utility model discloses a kind of multifunctional electronic tags based on bluetooth communication, including power management module, main control module, indicating module and wireless communication module;Main control module includes main control MCU chip, it contains multiple configurable GPIO pins, for controlling the state of each light emitting diode in indicating module and the sound emission of buzzer;Indicating module includes multiple multicolor light emitting diode submodule and buzzer submodule, multiple multicolor light emitting diode submodule is connected with the GPIO pin of main control module by independent control circuit respectively, each light emitting diode submodule supports green, blue and red three color display;Wireless communication module is configured as bluetooth communication module, and is connected with main control module by UART interface.Integration of multicolor indication, brightness adjustment and wireless control is realized, and the diversity and energy efficiency management level of indicating function are improved.

Description

Technical Field

[0001] This utility model relates to the field of electronic devices, and in particular to a multifunctional electronic tag based on Bluetooth communication. Background Technology

[0002] Electronic tags play a crucial role in modern warehousing and logistics, retail management, and other scenarios, used to indicate the status of storage locations and guide picking operations. Traditional electronic tags mostly use wired connections or simple monochrome indicator lights, which present problems such as difficult wiring and insufficient flexibility in complex warehousing environments. With the development of wireless technology, Bluetooth electronic tags are gradually being applied to warehouse management. However, most Bluetooth electronic tags only support single-color light indication, unable to convey diverse status information through different colors; at the same time, the lack of an effective brightness adjustment mechanism makes it difficult to optimize energy consumption while ensuring visibility. Summary of the Invention

[0003] In view of this, the purpose of this utility model is to propose a multifunctional electronic tag based on Bluetooth communication.

[0004] To achieve the above-mentioned technical objectives, the technical solution adopted by this utility model is as follows: A multifunctional electronic tag based on Bluetooth communication includes a power management module, a main control module, an indicator module, and a wireless communication module. The power management module includes a lithium battery, a battery voltage detection circuit, and a brightness control submodule. The battery voltage detection circuit is connected to the main control module via an ADC interface to detect the battery voltage. The brightness control submodule adjusts the operating current of the indicator module by switching resistor networks with different resistance values. The main control module includes a main control MCU chip with multiple configurable GPIO pins for controlling the status of each LED and the sound of the buzzer in the indicator module. The indicator module includes multiple multi-color LED submodules and a buzzer submodule. The main control module controls the status of each LED and the sound of the buzzer in the buzzer submodule. Each multi-color LED submodule is connected to the GPIO pins of the main control module via independent control lines, and each LED submodule supports green, blue, and red color display. The wireless communication module is configured as a Bluetooth communication module, connected to the main control module via a UART interface to receive control commands from external devices.

[0005] In some embodiments, the number of the plurality of multicolor light-emitting diode submodules is three.

[0006] In some embodiments, the brightness control submodule adjusts the operating current by switching resistor networks with different resistance values.

[0007] In some embodiments, the battery voltage detection circuit is connected to the main control MCU chip via an ADC interface.

[0008] In some embodiments, the wireless communication module is connected to the main control MCU chip via a UART interface.

[0009] In some embodiments, multiple multi-color LED sub-modules are connected to the GPIO pins of the main control MCU chip through independent control lines.

[0010] In some embodiments, the buzzer submodule is connected to the GPIO pin of the main control MCU chip.

[0011] In some embodiments, the device further includes a housing and a light-transmitting plate. The housing has a storage cavity and contains a power management module, a main control module, an indicator module, and a wireless communication module. A light-transmitting opening is also provided on one side of the housing, and the light-transmitting opening communicates with the storage cavity. The light-transmitting plate is disposed at the light-transmitting opening.

[0012] In some embodiments, the system further includes a switch module electrically connected to the main control module. The switch module includes a button that protrudes from the housing and is positioned toward one side of the housing.

[0013] By adopting the above technical solution, the beneficial effects of this utility model compared with the prior art are as follows: Unlike existing technologies, the above technical solution includes a power management module, a main control module, an indicator module, and a wireless communication module. The power management module includes a lithium battery, a battery voltage detection circuit, and a brightness control submodule. The battery voltage detection circuit is connected to the main control module via an ADC interface. The brightness control submodule adjusts the operating current of the indicator module by switching resistor networks with different resistance values. The main control module includes a main control MCU chip with multiple configurable GPIO pins for controlling the status of each LED in the indicator module and the sound of the buzzer. The indicator module includes multiple multi-color LED submodules and a buzzer submodule. Each multi-color LED submodule is connected to the GPIO pins of the main control module via independent control lines, and each LED submodule supports green, blue, and red color display. The wireless communication module is configured as a Bluetooth communication module and connects to the main control module via a UART interface. This technical solution integrates multi-color indication, brightness adjustment, and wireless control, improving the diversity of indicator functions and energy efficiency management. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the module of the multifunctional electronic tag described in the specific implementation method; Figure 2 This is a first schematic diagram of the multifunctional electronic tag described in the specific implementation method; Figure 3 This is a second schematic diagram of the multifunctional electronic tag described in the specific implementation method; Figure 4 This is a third schematic diagram of the multifunctional electronic tag described in the specific implementation method.

[0016] Figure label: 1. Multifunctional electronic tag; 11. Power Management Module; 12. Main control module; 13. Indicator module; 14. Wireless communication module; 15. Shell; 16. Translucent panel; 17. Buttons. Detailed Implementation

[0017] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be particularly noted that the following embodiments are only for illustrating the present invention and do not limit the scope of the present invention. Similarly, the following embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0018] Please see Figures 1 to 4This embodiment provides a multi-functional electronic tag 1 based on Bluetooth communication, including a power management module 11, a main control module 12, an indicator module 13, and a wireless communication module 14. The power management module 11 includes a lithium battery, a battery voltage detection circuit, and a brightness control submodule. The battery voltage detection circuit is connected to the main control module 12 via an ADC interface to detect the battery voltage value. The brightness control submodule adjusts the operating current of the indicator module 13 by switching resistor networks with different resistance values. The main control module 12 includes a main control MCU chip, which contains multiple configurable GPIO pins for controlling the indicator module 13. The indicator module 13 includes multiple multi-color LED sub-modules and a buzzer sub-module. The main control module 12 controls the status of each LED and the sound of the buzzer in the buzzer sub-module. The multiple multi-color LED sub-modules are connected to the GPIO pins of the main control module 12 through independent control lines. Each LED sub-module supports three colors: green, blue, and red. The wireless communication module 14 is configured as a Bluetooth communication module. The Bluetooth communication module is connected to the main control module 12 through a UART interface and is used to receive control commands sent by external devices.

[0019] In this embodiment, the power management module 11 monitors the lithium battery status in real time through a battery voltage detection circuit, and the brightness control submodule uses a resistor network switching method to achieve three levels of brightness adjustment. The main control MCU chip of the main control module 12 independently controls the display status and buzzer sound of the three multi-color LED submodules through multiple GPIO pins, where each LED submodule contains LED devices that can display three colors: green, blue, and red. The three multi-color LED submodules of the indicator module 13 correspond to three independent cargo location indicator areas, and precise light indication is achieved through independent control circuits. The wireless communication module 14 adopts Bluetooth Low Energy technology and establishes a stable communication connection with the main control module 12 through a UART interface.

[0020] Specifically, in this embodiment, the power management module 11 monitors the voltage state of the lithium battery in real time through a battery voltage detection circuit. This battery voltage detection circuit is connected to the main control module 12 via an ADC interface, enabling accurate acquisition of battery voltage data and providing precise reference for power management. The brightness control submodule employs a multi-path resistor network switching method to achieve three levels of brightness adjustment. By switching resistors with different resistance values, the operating current of the indicator module 13 is changed, thereby effectively reducing power consumption and extending device usage time while ensuring sufficient display brightness.

[0021] The main control MCU chip of the main control module 12 has multiple configurable GPIO pins, which independently control the display status and buzzer sound of the three multi-color LED sub-modules. Each multi-color LED sub-module contains independently controllable green, blue, and red LED chips, which can convey diverse status information through different color combinations. By parsing the received control commands, the main control MCU chip can precisely control the on / off state, flashing mode, and color display of each LED.

[0022] The three multi-color LED sub-modules of the indicator module 13 correspond to three independent cargo location indication areas. Each sub-module is connected to the main control module 12 through an independent control circuit, avoiding signal interference and ensuring control accuracy. The buzzer sub-module is connected to a specific GPIO pin of the main control MCU and can emit prompts of different durations according to instructions, providing audible auxiliary indication.

[0023] The wireless communication module 14 adopts Bluetooth Low Energy technology and establishes a stable data transmission channel with the main control module 12 through the UART serial communication interface. This module can reliably receive control commands sent by external PDA devices and transmit the command data completely to the main control MCU for processing, ensuring the real-time performance and reliability of the entire system's wireless control.

[0024] In this embodiment, after receiving control commands from external devices via the wireless communication module 14, the main control module 12 parses the commands and controls the corresponding multi-color LED sub-modules to display the specified color and brightness. Simultaneously, it can drive a buzzer to emit a prompt tone as needed. The power management module 11 optimizes energy efficiency by adjusting the operating current through the brightness control sub-module, and the battery voltage detection circuit provides real-time data support for power management. This electronic tag achieves wireless indication functions for multiple storage locations, multiple colors, and adjustable brightness, effectively improving the efficiency and accuracy of warehouse management operations.

[0025] In some embodiments, the number of the plurality of multicolor light-emitting diode submodules is three.

[0026] In this embodiment, the number of multi-color LED sub-modules is three, corresponding to the common requirement of three independent storage location indications in warehouse picking operations. Each multi-color LED sub-module is connected to the main control MCU chip through an independent control circuit, ensuring that each indicator can respond to control commands independently. The three sub-modules are configured as indicator lights 1, 2, and 3, respectively, and the control target is distinguished by address codes to achieve accurate storage location indication.

[0027] In this embodiment, after receiving control commands from external devices via the wireless communication module 14, the main control module 12 parses the address code in the command to determine the target indicator light, and controls the corresponding multi-color LED sub-module to display it in a specified manner according to the function code, color code, and flashing mode parameters. The three indicator lights can work independently or in combination, conveying diverse operational status information through different colors and flashing modes, effectively improving the accuracy and efficiency of warehouse picking operations, while reducing the difficulty of identification for operators.

[0028] In some embodiments, the brightness control submodule adjusts the operating current by switching resistor networks with different resistance values.

[0029] In this embodiment, the brightness control submodule adjusts the operating current of the indicator module 13 by switching resistor networks with different resistance values. This resistor network switching method achieves a three-level brightness adjustment function. The resistor network contains multiple resistive elements with different resistance values, and the path is switched by an electronic switching device, thereby changing the magnitude of the operating current flowing through the light-emitting diode. When switching to a lower resistance value path, the operating current increases, and the light emission brightness increases; when switching to a higher resistance value path, the operating current decreases, and the light emission brightness decreases, thus optimizing energy efficiency.

[0030] In this embodiment, the main control module 12 controls the electronic switching devices in the brightness control submodule, selecting different resistance paths to adjust the operating current, thereby achieving precise control over the brightness of the indicator module 13. This brightness adjustment mechanism ensures sufficient display brightness while flexibly adjusting power consumption levels according to actual usage scenarios, effectively extending the battery life of the electronic tag and improving the device's environmental adaptability and cost-effectiveness.

[0031] In some embodiments, the battery voltage detection circuit is connected to the main control MCU chip via an ADC interface.

[0032] In this embodiment, the battery voltage detection circuit is connected to the main control MCU chip via an ADC interface. This ADC interface converts the analog voltage signal into a digital signal for processing by the main control MCU chip. The battery voltage detection circuit includes a voltage divider resistor network and a signal conditioning circuit, which can proportionally attenuate the operating voltage of the lithium battery to the input voltage range of the ADC interface. At the same time, the filtering circuit eliminates interference signals, ensuring the accuracy and stability of voltage detection.

[0033] This embodiment uses a battery voltage detection circuit to collect lithium battery voltage data in real time. After conversion via an ADC interface, the data is transmitted to the main control MCU chip for analysis and processing. The main control MCU chip determines the remaining battery power status based on the received voltage data. When the voltage is detected to be lower than a set threshold, a low battery warning can be issued, providing a reliable monitoring basis for power management and effectively ensuring the continuous and stable operation of the electronic tag.

[0034] In some embodiments, the wireless communication module 14 is connected to the main control MCU chip via a UART interface.

[0035] In this embodiment, the wireless communication module 14 is connected to the main control MCU chip via a UART interface. The UART interface uses an asynchronous serial communication protocol to exchange data. The wireless communication module 14 has a built-in Bluetooth protocol stack. It receives control commands sent by the main control MCU chip through the UART interface, and simultaneously transmits received data from external devices to the main control MCU chip for processing through the same interface. The baud rate, data bits, stop bits, and parity bits of the UART interface are configured according to communication requirements to ensure the reliability and real-time performance of data transmission.

[0036] In this embodiment, a stable communication link is established between the wireless communication module 14 and the main control MCU chip via the UART interface. When an external device sends a control command, the wireless communication module 14 receives and parses the Bluetooth data packet, and transmits the valid command data to the main control MCU chip via the UART interface. The main control MCU chip controls the instruction module 13 to perform corresponding operations according to the received command, and can also send status feedback information to the wireless communication module 14 through the same interface, realizing two-way data interaction and remote control functions between the electronic tag and the external device.

[0037] In some embodiments, multiple multi-color LED sub-modules are connected to the GPIO pins of the main control MCU chip through independent control lines.

[0038] In this embodiment, multiple multi-color LED sub-modules are connected to the GPIO pins of the main control MCU chip via independent control lines. Each sub-module contains LED chips of three colors: green, blue, and red, with each color LED connected to a different GPIO pin. This independent connection method avoids signal crosstalk and ensures that each LED can be independently controlled for its on / off state, color display, and blinking mode. The main control MCU chip precisely controls the drive current and brightness level of each LED by configuring the output level of the GPIO pins and the PWM signal.

[0039] In this embodiment, control signals are output from multiple GPIO pins of the main control MCU chip, driving the corresponding multi-color LED sub-modules via independent control circuits. When an external control command is received, the main control MCU chip parses the address code in the command to determine the target sub-module, and selects the corresponding GPIO pin to output drive signals according to the color code and function code. This achieves precise control of the specified color LED, ensuring that each indicator can independently respond to the command and accurately display the corresponding color and status information.

[0040] In some embodiments, the buzzer submodule is connected to the GPIO pin of the main control MCU chip.

[0041] In this embodiment, the buzzer submodule is connected to the GPIO pin of the main control MCU chip. This GPIO pin is configured in output mode, driving the buzzer to sound by outputting square wave signals of different frequencies. The buzzer submodule includes a piezoelectric buzzer element and a driving circuit. When the GPIO pin outputs a high-frequency square wave signal, the buzzer emits a continuous beep; when it outputs a low-frequency pulse signal, the buzzer emits an intermittent warning sound, realizing multiple sound prompt modes.

[0042] In this embodiment, the buzzer submodule is driven by a control signal output from the GPIO pin of the main control MCU chip. When a buzzer command is received from an external device, the main control MCU chip generates a square wave signal of the corresponding frequency on the designated GPIO pin, driving the buzzer to emit a preset duration of prompt tone. The combination of sound prompts and light indicators provides multimodal work status feedback, effectively enhancing the warning effect of the electronic tag in noisy environments and improving the operator's ability to perceive key information.

[0043] Please see Figures 2 to 4 In some embodiments, the housing 15 and the light-transmitting plate 16 are also included. The housing 15 has a storage cavity and is provided with a power management module 11, a main control module 12, an indicator module 13 and a wireless communication module 14. A light-transmitting port is also provided on one side of the housing 15, which is connected to the storage cavity. The light-transmitting plate 16 is disposed in the light-transmitting port.

[0044] In this embodiment, a housing 15 and a light-transmitting plate 16 are also included. The housing 15 has a storage cavity, and a power management module 11, a main control module 12, an indicator module 13, and a wireless communication module 14 are housed inside the housing 15. A light-transmitting opening is also provided on one side of the housing 15, which communicates with the storage cavity. The light-transmitting plate 16 is disposed at the light-transmitting opening. The housing 15 is made of engineering plastic material, which has sufficient mechanical strength and insulation performance. Its internal storage cavity provides installation space and physical protection for each electronic module. The light-transmitting plate 16 is made of transparent or semi-transparent material, which has good light transmittance and impact resistance, and can evenly diffuse the light emitted by the indicator module 13 to the external environment.

[0045] In this embodiment, the housing 15 provides structural support and environmental protection for the various functional modules of the electronic tag. The light-transmitting plate 16 covers the light-transmitting opening of the housing 15, protecting the internal indicator module 13 from external environmental influences while ensuring effective light transmission from the indicator lights. When the multi-color LED submodule of the indicator module 13 is working, the emitted light is uniformly scattered through the light-transmitting plate 16, forming a clearly visible indicator spot. At the same time, the structure of the housing 15 effectively protects the internal circuitry from dust, moisture, and mechanical impact, improving the environmental adaptability and service life of the electronic tag.

[0046] Please see Figure 2 In some embodiments, a switch module is also included. The switch module is electrically connected to the main control module 12. The switch module includes a button 17, which protrudes from the housing 15 and is positioned toward one side of the housing 15.

[0047] In this embodiment, a switch module is also included. The switch module is electrically connected to the main control module 12. The switch module includes a button 17, which protrudes from the housing 15 and is positioned facing one side of the housing 15. The switch module adopts a tactile switch structure, with the button 17 protruding outward through an opening on the housing 15 for easy pressing by the operator. The switch module is connected to the GPIO pin of the main control MCU chip. When the button 17 is pressed, a level change signal is generated, and the main control MCU chip responds to the switch operation by detecting this signal state change.

[0048] This embodiment provides local operation functions for the electronic tag through a switch module. When the operator presses button 17, the switch module sends a trigger signal to the main control MCU chip. The main control MCU chip then executes corresponding functional operations according to a preset program, such as powering on / off, switching modes, or querying status. The combination of local operation functions and wireless control enhances the flexibility and convenience of using the electronic tag. Even in the event of wireless communication failure, basic operations can still be performed via the physical button 17, improving device reliability and user experience.

[0049] Unlike existing technologies, the above technical solution includes a power management module 11, a main control module 12, an indicator module 13, and a wireless communication module 14. The power management module 11 includes a lithium battery, a battery voltage detection circuit, and a brightness control submodule. The battery voltage detection circuit is connected to the main control module 12 via an ADC interface. The brightness control submodule adjusts the operating current of the indicator module 13 by switching resistor networks with different resistance values. The main control module 12 includes a main control MCU chip with multiple configurable GPIO pins for controlling the status of each LED in the indicator module 13 and the sound of the buzzer. The indicator module 13 includes multiple multi-color LED submodules and a buzzer submodule. Each multi-color LED submodule is connected to the GPIO pins of the main control module 12 via independent control lines, and each LED submodule supports green, blue, and red color display. The wireless communication module 14 is configured as a Bluetooth communication module and connects to the main control module 12 via a UART interface. This technical solution integrates multi-color indication, brightness adjustment, and wireless control, improving the diversity of indication functions and energy efficiency management.

[0050] The above description is only a part of the embodiments of this utility model, and does not limit the scope of protection of this utility model. Any equivalent device or equivalent process transformation made based on the content of this utility model specification and drawings, or direct or indirect application in other related technical fields, are similarly included in the patent protection scope of this utility model.

Claims

1. A multifunctional electronic tag based on Bluetooth communication, characterized in that, It includes a power management module, a main control module, an indicator module, and a wireless communication module; The power management module includes a lithium battery, a battery voltage detection circuit, and a brightness control submodule. The battery voltage detection circuit is connected to the main control module through an ADC interface and is used to detect the battery voltage value. The brightness control submodule adjusts the operating current of the indicator module by switching resistor networks with different resistance values. The main control module includes a main control MCU chip, which contains multiple configurable GPIO pins for controlling the state of each LED in the indicator module and the sound of the buzzer. The indicator module includes multiple multi-color LED sub-modules and a buzzer sub-module. The main control module is used to control the status of each LED and the sounding of the buzzer in the buzzer sub-module. The multiple multi-color LED sub-modules are connected to the GPIO pins of the main control module through independent control lines. Each LED sub-module supports three colors: green, blue and red. The wireless communication module is configured as a Bluetooth communication module, which is connected to the main control module via a UART interface to receive control commands sent by external devices.

2. The multifunctional electronic tag based on Bluetooth communication according to claim 1, characterized in that, The number of the multiple multicolor light-emitting diode sub-modules is three.

3. The multifunctional electronic tag based on Bluetooth communication according to claim 1, characterized in that, The brightness control submodule adjusts the operating current by switching resistor networks with different resistance values.

4. The multifunctional electronic tag based on Bluetooth communication according to claim 1, characterized in that, The battery voltage detection circuit is connected to the main control MCU chip via an ADC interface.

5. The multifunctional electronic tag based on Bluetooth communication according to claim 1, characterized in that, The wireless communication module is connected to the main control MCU chip via a UART interface.

6. The multifunctional electronic tag based on Bluetooth communication according to claim 1, characterized in that, Each of the multi-color LED sub-modules is connected to the GPIO pin of the main control MCU chip through an independent control circuit.

7. The multifunctional electronic tag based on Bluetooth communication according to claim 1, characterized in that, The buzzer submodule is connected to the GPIO pin of the main control MCU chip.

8. The multifunctional electronic tag based on Bluetooth communication according to claim 1, characterized in that, Also includes: The housing has a storage cavity, and the power management module, main control module, indicator module and wireless communication module are arranged inside the housing. A light-transmitting opening is also provided on one side of the housing, and the light-transmitting opening is connected to the storage cavity. A light-transmitting plate is disposed at the light-transmitting opening.

9. The multifunctional electronic tag based on Bluetooth communication according to claim 8, characterized in that, Also includes: A switch module is electrically connected to the main control module. The switch module includes a button that protrudes from the housing and is positioned towards one side of the housing.

Images