A bluetooth terminal suitable for a scanner

Abstract

The utility model discloses a kind of bluetooth terminal suitable for scanner, including main body and the external antenna connected to the back of main body, the main body top is equipped with indicator light, button and quick pairing bar code, the indicator light includes HID mode indicator light, serial mode indicator light and bluetooth connection state indicator light, the button includes mode switch key and machine key, the quick pairing bar code includes two-dimensional bar code and one-dimensional bar code, the back of main body is equipped with RS232 interface, Type-C interface, reset key and external antenna interface, the utility model avoids compatibility problem between bluetooth equipment and scanner, can guarantee connection transmission stability, by scanner scanning quick pairing bar code on bluetooth terminal, it can be connected quickly, it is convenient to use, by machine key, scanner in the connection with the bluetooth terminal can be quickly found, use HID mode or serial mode output, different customer needs can be satisfied, with wide application prospect, it is beneficial to popularization and application.

Description

Technical Field

[0001] This utility model relates to the field of scanner technology, and in particular to a Bluetooth terminal suitable for scanners. Background Technology

[0002] Currently, with the continuous improvement of informatization and automation, barcode technology is also constantly developing and being applied, and scanners are widely used in various industries. However, the use of scanners in the current technology still has many drawbacks, such as: some computers do not have Bluetooth devices, so scanners cannot directly connect to computers via Bluetooth; there are compatibility issues between different Bluetooth devices and scanners, resulting in poor connection and transmission stability; when multiple scanners are piled up together, it is impossible to determine which scanner is connected to the Bluetooth device, etc. Therefore, there is an urgent need to develop a Bluetooth terminal suitable for scanners to solve the above-mentioned technical problems.

[0003] In view of the above, this utility model is hereby proposed. Utility Model Content

[0004] The purpose of this invention is to provide a Bluetooth terminal suitable for scanners, avoiding compatibility issues between Bluetooth devices and scanners, ensuring stable connection and transmission, enabling quick connection by scanning the quick pairing barcode on the Bluetooth terminal, facilitating convenient use, and allowing for quick location of the scanner connected to the Bluetooth terminal via the search button, and providing output in HID or serial mode to meet different customer needs, with broad application prospects and conducive to promotion and application.

[0005] To achieve the above objectives, this utility model provides a Bluetooth terminal suitable for scanners, comprising a main body and an external antenna connected to the back of the main body. The top of the main body is provided with indicator lights, buttons, and a quick pairing barcode. The indicator lights include an HID mode indicator, a serial port mode indicator, and a Bluetooth connection status indicator. The buttons include a mode switch button and a find button. The quick pairing barcode includes a two-dimensional barcode and a one-dimensional barcode. The back of the main body is provided with an RS232 interface, a Type-C interface, a reset button, and an external antenna interface. An MCU is housed inside the main body. The interfaces are connected to the MCU and Bluetooth module via 5V-5V and 5V-3.3V DC-DC converter chips, respectively, and are independently powered by the MCU and Bluetooth module. The MCU's communication interface is connected to the RS232 interface for serial communication, the Type-C interface for USB communication, and the Bluetooth module for Bluetooth communication. The MCU's output I / O ports are connected to the HID mode indicator, serial port mode indicator, Bluetooth connection status indicator, mode switch button, search button, and reset button, respectively. All indicator lights and buttons are controlled by the MCU's output I / O ports. The Bluetooth module is connected to an external antenna.

[0006] Preferably, the external antenna interface has a thread on its outer side, and the external antenna is connected to the external antenna interface via the thread.

[0007] Preferably, both the RS232 interface and the Type-C interface are powered by 5V.

[0008] Preferably, the HID mode indicator is powered by 5V and is controlled to light up by the MCU's output IO port OUTPUT1. When the HID mode is successfully set, the MCU obtains input information through communication, and at the same time, the MCU's output IO port OUTPUT1 outputs a low level, causing the HID mode indicator to light up. At this time, the terminal device connected to the communication via RS232 interface or Type-C interface can input information at its cursor.

[0009] Preferably, the serial port mode indicator is powered by 5V and is controlled to light up by the MCU's output IO port OUTPUT2. When the serial port mode is successfully set, the MCU obtains information that the serial port communication is normal through communication, and at the same time, the MCU's output IO port OUTPUT2 outputs a low level, causing the serial port mode indicator to light up. At this time, the connection and terminal devices need to communicate through serial port software.

[0010] Preferably, the Bluetooth connection status indicator is powered by 5V and is controlled by the MCU's output IO port OUTPUT3. When the Bluetooth module successfully connects to an external terminal device, the MCU obtains the connection success information through communication between the Bluetooth master module and the MCU, and simultaneously drives the MCU's output IO port OUTPUT3 to output a low level, keeping it constantly lit. When the external Bluetooth device disconnects, the output IO interface is driven to output a pulse level, causing the Bluetooth connection status indicator to flash.

[0011] Preferably, the mode switching key enables the terminal device to switch between HID mode and serial port mode. If it is currently in HID mode, i.e. the HID mode status light is on, when the mode switching key is pressed, the MCU's input IO port INPUT1 detects a high-level signal. If this information is maintained for more than 2 seconds, the HID mode will switch to the serial port mode, i.e. the serial port mode indicator light will be on and the HID mode indicator light will be off, and vice versa.

[0012] Preferably, when the scanner is mixed, the search button finds the scanner that is currently successfully connected to the Bluetooth terminal. When the search button is pressed, the MCU's input IO port INPUT2 detects a high-level signal and determines whether the Bluetooth terminal is successfully connected to the scanner. If it is in a successfully connected state and the high-level signal is maintained for more than 2 seconds, the scanner emits a prompt sound to indicate the scanner's location.

[0013] Preferably, the reset button enables the Bluetooth terminal to reset. When the reset button is pressed, the MCU's input IO port INPUT3 detects a high-level signal, and when the signal remains high for more than 2 seconds, the Bluetooth terminal is reset.

[0014] The present invention provides a Bluetooth terminal suitable for scanners, which has the following beneficial effects.

[0015] 1. This utility model avoids compatibility issues between Bluetooth devices and scanners, ensuring stable connection and transmission. By scanning the quick pairing barcode on the Bluetooth terminal with the scanner, a quick connection can be established, making it convenient to use. The scanner connected to the Bluetooth terminal can be quickly located using the find button. Output in HID mode or serial port mode can meet the needs of different customers, has broad application prospects, and is conducive to promotion and application.

[0016] 2. The RS232 interface (implemented via RJ45) and Type-C interface of this utility model are the power supply interfaces for the Bluetooth terminal. The two interfaces can be powered independently or simultaneously. In addition, the RS232 interface and Type-C interface are also communication interfaces, enabling communication between the Bluetooth terminal and client devices such as scanners and computers. To prevent interference from external power sources, this utility model provides independent 5V-5V DC-DC conversion circuits for the two power supply ports. The converted 5V is used to power the internal terminal. Since the main working modules inside the terminal, such as the Bluetooth module and MCU, are powered by 3.3V, a 5V to 3.3V DC-DC conversion circuit is provided. The converted 3.3V powers the MCU, Bluetooth module, indicator lights, buttons, etc.

[0017] 3. Both the RS232 interface and the Type-C interface of this utility model can communicate with the MCU via serial communication, i.e., the asynchronous communication method of USART, to achieve wired interaction between the Bluetooth terminal and external devices; the Bluetooth module communicates with the MCU, and the internal communication method adopts UART communication to realize the interconnection and interoperability between the Bluetooth terminal and the peripheral Bluetooth devices. Attached Figure Description

[0018] Figure 1 A schematic diagram of the structure of a Bluetooth terminal suitable for scanners provided by this utility model;

[0019] Figure 2 An exploded view of a Bluetooth terminal suitable for scanners provided by this utility model;

[0020] Figure 3 A schematic diagram of the top of the main body of a Bluetooth terminal suitable for scanners provided by this utility model;

[0021] Figure 4A schematic diagram of the back of the main body of a Bluetooth terminal suitable for scanners provided by this utility model;

[0022] Figure 5 This utility model provides an internal circuit schematic diagram of a Bluetooth terminal suitable for scanners.

[0023] In the picture:

[0024] 1. Main body 2. External antenna 3. HID mode indicator 4. Serial port mode indicator 5. Bluetooth connection status indicator 6. Mode switch button 7. Find button 8. 2D barcode 9. 1D barcode 10. RS232 interface 11. Type-C interface 12. Reset button 13. External antenna interface 14. Thread. Detailed Implementation

[0025] The present invention will be further described below with reference to specific embodiments and accompanying drawings to help to understand the content of the present invention.

[0026] like Figure 1-5 The figures shown are a schematic diagram, an exploded view, a top view, a back view, and an internal circuit diagram of a Bluetooth terminal suitable for scanners provided by this utility model. The Bluetooth terminal for scanners includes a main body 1 and an external antenna 2 connected to the back of the main body 1. The top of the main body 1 is provided with indicator lights, buttons, and a quick pairing barcode. The indicator lights include an HID mode indicator light 3, a serial port mode indicator light 4, and a Bluetooth connection status indicator light 5. The buttons include a mode switch button 6 and a search button 7. The quick pairing barcode includes a two-dimensional barcode 8 and a one-dimensional barcode 9. The back of the main body 1 is provided with an RS232 interface 10, a Type-C interface 11, a reset button 12, and an external antenna interface 13. The main body 1 contains an MCU. The RS232 interface 10 and the Type-C interface 11 are... The MCU and Bluetooth module are connected independently via 5V-5V and 5V-3.3V DC-DC converter chips. The MCU and Bluetooth module are powered independently. The MCU's communication interface connects to RS232 interface 10 for serial communication, to Type-C interface 11 for USB communication, and to the Bluetooth module for Bluetooth communication. The MCU's output I / O ports are connected to HID mode indicator 3, serial port mode indicator 4, Bluetooth connection status indicator 5, mode switch button 6, search button 7, and reset button 12, respectively. All indicator lights and buttons are controlled by the MCU's output I / O ports. The Bluetooth module is connected to external antenna 2. External antenna interface 13 has a thread 14 on its outer side, and external antenna 2 is connected to external antenna interface 13 via the thread 14. Both RS232 interface 10 and Type-C interface 11 are powered by 5V.

[0027] The HID mode indicator 3 is powered by 5V and is controlled to light up by the MCU's output IO port OUTPUT1. When the HID mode is successfully set, the MCU obtains input information through communication, and at the same time, the MCU's output IO port OUTPUT1 outputs a low level, causing the HID mode indicator 3 to light up. At this time, the terminal device connected to the communication via RS232 interface 10 or Type-C interface 11 can input information at its cursor position.

[0028] The serial port mode indicator 4 is powered by 5V and is controlled by the MCU's output IO port OUTPUT2. When the serial port mode is successfully set, the MCU receives information that the serial port communication is normal through communication. At the same time, the MCU's output IO port OUTPUT2 outputs a low level, causing the serial port mode indicator 4 to light up. At this time, the connection and terminal devices need to communicate through serial port software.

[0029] The Bluetooth connection status indicator 5 is powered by 5V and is controlled by the MCU's output IO port OUTPUT3. When the Bluetooth module successfully connects to an external terminal device, the MCU obtains the connection success information through communication between the Bluetooth master module and the MCU, and at the same time drives the MCU's output IO port OUTPUT3 to output a low level, making it constantly lit. When the external Bluetooth device is disconnected, the output IO interface is driven to output a pulse level, causing the Bluetooth connection status indicator 5 to flash.

[0030] The mode switching key 6 enables the terminal device to switch between HID mode and serial port mode. If it is currently in HID mode, i.e. the HID mode status light is on, when the mode switching key 6 is pressed, the MCU's input IO port INPUT1 detects a high-level signal. If this information is maintained for more than 2 seconds, the HID mode will switch to the serial port mode, i.e. the serial port mode indicator 4 will light up and the HID mode indicator 3 will turn off, and vice versa.

[0031] The search button 7 enables the scanner to find the scanner that is currently successfully connected to the Bluetooth terminal when the scanner is mixed. When the search button 7 is pressed, the MCU's input IO port INPUT2 detects a high-level signal and determines whether the Bluetooth terminal is successfully connected to the scanner. If it is in a successfully connected state and the high-level signal is maintained for more than 2 seconds, the scanner will emit a prompt sound to indicate the scanner's location.

[0032] The reset button 12 enables the Bluetooth terminal to be reset. When the reset button 12 is pressed, the MCU's input IO port INPUT3 detects a high-level signal, and when the signal remains high for more than 2 seconds, the Bluetooth terminal is reset.

[0033] The RS232 interface 10 (implemented via RJ45) and Type-C interface 11 of this invention are the power supply interfaces for the Bluetooth terminal. The two interfaces can be powered independently or simultaneously. Additionally, the RS232 interface 10 and Type-C interface 11 are also communication interfaces, enabling communication between the Bluetooth terminal and client devices such as scanners and computers. To prevent interference from external power sources, this invention provides independent 5V-5V DC-DC conversion circuits for each of the two power supply ports. The converted 5V is used to power the internal terminal. Since the main operating modules inside the terminal, such as the Bluetooth module and MCU, are powered by 3.3V, a 5V-to-3.3V DC-DC conversion circuit is provided. The converted 3.3V powers the MCU, Bluetooth module, indicator lights, buttons, etc.

[0034] Both the RS232 interface 10 and the Type-C interface 11 of this utility model can communicate with the MCU via serial communication, i.e., the asynchronous communication method of USART, to achieve wired interaction between the Bluetooth terminal and external devices; the Bluetooth module communicates with the MCU, and the internal communication method adopts UART communication to realize the interconnection between the Bluetooth terminal and the peripheral Bluetooth devices.

[0035] This invention avoids compatibility issues between Bluetooth devices and scanners, ensuring stable connection and transmission. It allows for quick connection and ease of use by scanning the quick pairing barcode on the Bluetooth terminal. The search button 7 allows for quick location of the scanner connected to the Bluetooth terminal. Output in HID or serial mode can meet the needs of different customers, offering broad application prospects and facilitating widespread adoption.

[0036] This article uses specific examples to illustrate the inventive concept in detail. The description of the above embodiments is only for the purpose of helping to understand the core idea of ​​this utility model. It should be noted that any obvious modifications, equivalent substitutions or other improvements made by those skilled in the art without departing from the inventive concept should be included within the protection scope of this utility model.

Claims

1. A Bluetooth terminal suitable for scanners, characterized in that, The device includes a main body and an external antenna connected to the back of the main body. The top of the main body features indicator lights, buttons, and a quick pairing barcode. The indicator lights include an HID mode indicator, a serial port mode indicator, and a Bluetooth connection status indicator. The buttons include a mode switch button and a find button. The quick pairing barcode includes a two-dimensional barcode and a one-dimensional barcode. The back of the main body features an RS232 interface, a Type-C interface, a reset button, and an external antenna interface. The main body houses an MCU. The RS232 interface and Type-C interface are connected to the MCU and Bluetooth module respectively via 5V-5V and 5V-3.3V DC-DC converter chips, providing independent power to the MCU and Bluetooth module. The MCU's communication interface connects to the RS232 interface for serial communication, to the Type-C interface for USB communication, and to the Bluetooth module for Bluetooth communication. The MCU's output I / O ports are connected to the HID mode indicator, serial port mode indicator, Bluetooth connection status indicator, mode switch button, find button, and reset button, respectively. All indicator lights and buttons are controlled by the MCU's output I / O ports. The Bluetooth module is connected to the external antenna.

2. A Bluetooth terminal suitable for scanners according to claim 1, characterized in that, The external antenna interface has threads on its outer side, and the external antenna is connected to the external antenna interface via the threads.

3. A Bluetooth terminal suitable for scanners according to claim 2, characterized in that, Both the RS232 interface and the Type-C interface are powered by 5V.

4. A Bluetooth terminal suitable for scanners according to claim 3, characterized in that, The HID mode indicator is powered by 5V and is controlled by the MCU's output I / O port OUTPUT1. When the HID mode is successfully set, the MCU obtains input information through communication, and at the same time, the MCU's output I / O port OUTPUT1 outputs a low level, causing the HID mode indicator to light up. At this time, the terminal device connected to the communication via RS232 interface or Type-C interface can input information at its cursor.

5. A Bluetooth terminal suitable for scanners according to claim 4, characterized in that, The serial port mode indicator is powered by 5V and is controlled by the MCU's output I / O port OUTPUT2. When the serial port mode is successfully set, the MCU receives information that the serial port communication is normal through communication. At the same time, the MCU's output I / O port OUTPUT2 outputs a low level, which makes the serial port mode indicator light up. At this time, the connected terminal device needs to communicate through serial port software.

6. A Bluetooth terminal suitable for scanners according to claim 5, characterized in that, The Bluetooth connection status indicator is powered by 5V and is controlled by the MCU's output I / O port OUTPUT3. When the Bluetooth module successfully connects to an external terminal device, the MCU obtains the connection success information through communication between the Bluetooth master module and the MCU, and simultaneously drives the MCU's output I / O port OUTPUT3 to output a low level, keeping the indicator constantly lit. When the external Bluetooth device disconnects, the output I / O interface is driven to output a pulse level, causing the Bluetooth connection status indicator to flash.

7. A Bluetooth terminal suitable for scanners according to claim 6, characterized in that, The mode switching key enables the terminal device to switch between HID mode and serial port mode. If it is currently in HID mode, i.e. the HID mode status light is on, when the mode switching key is pressed, the MCU's input IO port INPUT1 detects a high-level signal. If this information is maintained for more than 2 seconds, the HID mode will switch to the serial port mode, i.e. the serial port mode indicator light will be on and the HID mode indicator light will be off, and vice versa.

8. A Bluetooth terminal suitable for scanners according to claim 7, characterized in that, When the scanner is mixed, the search button finds the scanner that is currently successfully connected to the Bluetooth terminal. When the search button is pressed, the MCU's input IO port INPUT2 detects a high-level signal and determines whether the Bluetooth terminal is successfully connected to the scanner. If the connection is successful and the high-level signal is maintained for more than 2 seconds, the scanner will emit a prompt tone to indicate the scanner's location.

9. A Bluetooth terminal suitable for a scanner according to claim 8, characterized in that, The reset button enables the Bluetooth terminal to be reset. When the reset button is pressed, the MCU's input IO port INPUT3 detects a high-level signal, and when the signal remains high for more than 2 seconds, the Bluetooth terminal is reset.

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