CN217428119U

CN217428119U - Portable Bluetooth communication device and equipment

Info

Publication number: CN217428119U
Application number: CN202221461659.3U
Authority: CN
Inventors: 黄智杰; 肖曙; 李洁慧
Original assignee: Guangzhou Chuoli Technology Co ltd
Current assignee: Guangzhou Chuoli Technology Co ltd
Priority date: 2022-06-10
Filing date: 2022-06-10
Publication date: 2022-09-13
Anticipated expiration: 2032-06-10

Abstract

The utility model belongs to the technical field of data transmission and discloses a portable Bluetooth communication device and equipment, which comprises a functional circuit and a USB interface circuit, wherein the functional circuit comprises a Bluetooth control chip and a CAN communication circuit; bluetooth control chip and CAN communication circuit are connected, Bluetooth control chip, CAN communication circuit is connected with USB interface circuit respectively, USB interface circuit is equipped with the end of pegging graft with external equipment interface assorted, Bluetooth control chip CAN pass through USB interface circuit direct output to external equipment with the TTL level data of output, also CAN carry out the CAN communication through USB interface circuit and external equipment again with TTL level data conversion to CAN data through CAN communication circuit, make the data of transmission not only be limited to serial ports data, CAN also transmit CAN data, thereby improve the commonality. In addition, the Bluetooth transmission and control functions are realized through one circuit module of the Bluetooth control chip, the structure can be simplified, the occupied space is reduced, and the carrying and the use are more convenient.

Description

Portable Bluetooth communication device and equipment

Technical Field

The utility model belongs to the technical field of data transmission, concretely relates to portable bluetooth communication device and equipment.

Background

In terms of the aspects of wireless communication, which are deeply involved in human life and production, bluetooth technology is outstanding among them. In the market, wireless communication is realized through bluetooth technology, and bluetooth communication modules applied to remote control of household small equipment and industrial equipment debugging are quite extensive.

For example, in an elevator application scenario, there are many types of external devices, such as a control cabinet motherboard, a remote monitoring terminal, and the like, and the data formats output by the external devices are different, so that the external devices cannot directly communicate with the intelligent device through bluetooth, and usually, data exchange and transmission between the external devices and the intelligent device need to be performed by using a bluetooth communication module as an intermediary.

However, most bluetooth communication modules in the market use a structure that two independent modules of a single chip microcomputer and a bluetooth module are connected, and control and bluetooth transmission are realized through the single chip microcomputer and the bluetooth module. However, the bluetooth module is generally a serial communication module, which limits that data sent by the bluetooth module must be serial data, and is only one type, and the universality is low. In addition, the structure of using singlechip + bluetooth module, the price does not have any advantage relatively, and the multimode occupies bulky, also makes most products in order to consider the portability, has to give up a lot of functions for the product limitation is bigger, thereby leads to this type of product inconvenient use.

Disclosure of Invention

An object of the utility model is to provide a portable bluetooth communication device and equipment can be so that the data of transmission not only is limited to serial ports data and improves the commonality, simplifies the structure simultaneously, reduces occupation space, conveniently carries and uses more.

In order to achieve the above object, a first aspect of the present invention provides a portable bluetooth communication device, comprising a functional circuit and a USB interface circuit, wherein the functional circuit comprises a bluetooth control chip and a CAN communication circuit; the Bluetooth control chip is connected with the CAN communication circuit, the Bluetooth control chip and the CAN communication circuit are respectively connected with the USB interface circuit, and the USB interface circuit is provided with a plug-in end matched with an external device interface.

In some embodiments, the USB interface circuit is provided with a TTL level data interface communicated with the plug terminal, and the bluetooth control chip is connected to the TTL level data interface.

In some embodiments, the USB interface circuit is provided with a CAN data interface communicated with the plug terminal, and the CAN communication circuit is connected to the CAN data interface.

In some embodiments, the bluetooth control device further comprises a voltage conversion circuit, an input end of the voltage conversion circuit is connected to the USB interface circuit, and an output end of the voltage conversion circuit is connected to the bluetooth control chip and the CAN communication circuit, respectively.

In some embodiments, the USB interface circuit is provided with an external power supply interface communicated with the plug terminal, and the input terminal of the voltage conversion circuit is connected to the external power supply interface.

In some embodiments, the functional circuit further includes an RS232 serial communication circuit, and the RS232 serial communication circuit is connected to the output terminal of the voltage conversion circuit, the bluetooth control chip, and the USB interface circuit, respectively.

In some embodiments, the USB interface circuit is provided with an RS232 data interface communicated with the insertion end, and the RS232 serial port communication circuit is connected to the RS232 data interface.

In some embodiments, the functional circuit further comprises an RS485 serial communication circuit, and the RS485 serial communication circuit is connected to the output end of the voltage conversion circuit, the bluetooth control chip, and the USB interface circuit, respectively.

In some embodiments, the USB interface circuit is provided with an RS485 data interface communicated with the insertion end, and the RS485 serial port communication circuit is connected to the RS485 data interface.

The utility model discloses the second aspect provides a portable bluetooth communication equipment, including casing and first aspect portable bluetooth communication device, portable bluetooth communication device install in the casing, be equipped with on the casing with external equipment interface assorted plug connector.

The beneficial effects of the utility model reside in that, the portable bluetooth communication device and equipment that provide, wherein the data of bluetooth control chip output are TTL level data, bluetooth control chip CAN pass through USB interface circuit direct output to external equipment with TTL level data, also CAN carry out the CAN communication with external equipment through USB interface circuit again with TTL level data conversion to CAN data through CAN communication circuit, make the data of transmission not only be limited to serial ports data, CAN also transmit CAN data, thereby improve the commonality.

Besides, through a circuit module of the Bluetooth control chip, Bluetooth transmission and control functions can be realized, and the structure of two independent modules of the singlechip and the Bluetooth module is not required, so that the structure is simplified, the occupied space is reduced, and the Bluetooth control device is more convenient to carry and use.

Drawings

Fig. 1 is a schematic structural diagram of a portable bluetooth communication device according to an embodiment of the present invention.

Description of reference numerals:

100. a portable bluetooth communication device; 10. a USB interface circuit; 20. a Bluetooth control chip; 30. a CAN communication circuit; 40. RS232 serial port communication circuit; 50. an RS485 serial port communication circuit; 200. an external device; 300. and (4) intelligent equipment.

Detailed Description

In order to facilitate an understanding of the invention, specific embodiments thereof will be described in more detail below with reference to the accompanying drawings.

As used herein, unless otherwise specified or defined, "first" and "second" … are used merely for name differentiation and do not denote any particular quantity or order.

As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items, unless specified or otherwise defined.

It should be noted that "fixed to" or "connected to" in this document may be directly fixed to or connected to one element or may be indirectly fixed to or connected to one element.

As shown in fig. 1, the embodiment of the present invention discloses a portable bluetooth communication device 100, which includes a functional circuit and a USB interface circuit 10, wherein the functional circuit includes a bluetooth control chip 20 and a CAN communication circuit 30; the Bluetooth control chip 20 is connected with the CAN communication circuit 30, the Bluetooth control chip 20 and the CAN communication circuit 30 are respectively connected with the USB interface circuit 10, and the USB interface circuit 10 is provided with a plug-in end matched with the interface of the external device 200.

The portable bluetooth communication device is similar to a USB disk, and can be carried by a worker and plugged into a USB interface of the external device 200, and then can be electrically connected with the external device 200 through the plugging terminal, and meanwhile, the portable bluetooth communication device 100 can perform wireless bluetooth communication with any intelligent device 300 having a bluetooth communication function, so the portable bluetooth communication device 100 can be used as a data conversion and transmission medium to realize data exchange between the intelligent device 300 and the external device 200. The smart device 300 includes a mobile terminal or a fixed terminal, where the fixed terminal refers to a smart device with a relatively fixed position, and the mobile terminal includes but is not limited to a mobile phone, a tablet computer, a notebook computer, and the like.

The bluetooth control chip 20 is a main control chip integrating a bluetooth module and a single chip, and most chips integrating the bluetooth module and a corresponding Serial Peripheral Interface (SPI) are available on the market. For example, the high speed bus control chip HS6621CM/HS6621CMB chip of arry micro, nrf52832 chip of nordic, etc., the main control chip integrates the function of the bluetooth module, and the bluetooth connection between the intelligent device and the main control chip is not the intelligent device-bluetooth module-single chip, but the intelligent device-bluetooth control chip 20.

Therefore, the Bluetooth transmission and control functions can be realized through the circuit module of the Bluetooth control chip 20, and the structure of two independent modules of the singlechip and the Bluetooth module is not required, so that the structure is simplified, the occupied space is reduced, and the Bluetooth control device is more convenient to carry and use.

In addition, through the bluetooth control chip 20, the bluetooth function can be highly customized, and is not limited to the AT command preset by the conventional bluetooth module, thereby solving the technical problem that the conventional bluetooth module is poor in customizability because the conventional bluetooth module can only configure the bluetooth module through the preset AT command; meanwhile, thanks to the routines and technical support provided by the chip manufacturer, the bluetooth control chip 20 is not much more difficult to develop than the conventional bluetooth module.

In this embodiment, the CAN communication circuit 30 preferably uses an MCP2515 or XL2515 chip and its peripheral circuits, the MCP2515 chip simply CAN directly exchange CAN-format data with spi-format data, and the spi data CAN be read and written by the bluetooth control chip 20, so that the bluetooth control chip 20 CAN directly output spi-format data to the CAN communication circuit 30 in a protocol manner, thereby realizing direct transmission from bluetooth to CAN data. Compared with a serial port-to-Bluetooth chip CSR-BC04 and a peripheral circuit thereof, the data conversion mode that the Bluetooth is converted from the serial port to the CAN is realized, and after the intelligent device 300 sends data to the Bluetooth control chip 20, the Bluetooth control chip 20 sends serial port data to be forwarded out of the CAN through a serial port-to-CAN communication circuit 30, so that the data conversion times CAN be reduced, the required data conversion modules are reduced, and the device occupies lower space and has lower cost. Or in other possible embodiments, when a bluetooth chip integrating the CAN function is selected as the main control chip, the CAN communication circuit 30 may not be even needed to exchange data between the module and the outside.

Data that bluetooth control chip 20 exported are TTL level data, and bluetooth control chip 20 CAN directly export external equipment 200 with TTL level data through USB interface circuit 10, also CAN carry out the CAN communication through USB interface circuit 10 and external equipment 200 with TTL level data conversion CAN data again through CAN communication circuit 30 for the data of transmission is not only limited to serial data, CAN also transmit CAN data, thereby improves the commonality.

Further, in this embodiment, the functional circuit further preferably includes an RS232 serial communication circuit 40 and an RS485 serial communication circuit 50, and in other possible embodiments, other functional circuit modules may also be integrated. The RS232 serial port communication circuit 40 is respectively connected with the Bluetooth control chip 20 and the USB interface circuit 10; the RS485 serial port communication circuit 50 is respectively connected with the Bluetooth control chip 20 and the USB interface circuit 10.

In the embodiment, external power supply is preferably adopted without separately arranging a power supply module, so that the structure is simplified, and the cost is reduced. Specifically, the portable bluetooth communication device further comprises a voltage conversion circuit 60, an input end of the voltage conversion circuit 60 is connected to the USB interface circuit 10, the voltage conversion circuit 60 supplies power to each functional circuit module in the functional circuit, that is, an output end of the voltage conversion circuit 60 is connected to the bluetooth control chip 20, the CAN communication circuit 30, the RS232 serial communication circuit 40, and the RS485 serial communication circuit 50 respectively.

Preferably, in this embodiment, the USB interface circuit 10 is provided with an external power supply interface, an RS232 data interface, a TTL level data interface, a CAN data interface and an RS485 data interface, which are respectively communicated with the plug terminal, an input terminal of the voltage conversion circuit 60 is connected to the external power supply interface, which is connected to the power supply of the external device 200 through the external power supply interface, the bluetooth control chip 20 is connected to the TTL level data interface, which is connected to the external device 200 through the TTL level data interface, the CAN communication circuit 30 is connected to the CAN data interface, which is connected to the external device 200 through the CAN data interface, the RS232 serial communication circuit 40 is connected to the RS232 data interface, which is connected to the external device 200 through the RS232 data interface, the RS485 communication circuit 50 is connected to the RS485 data interface, which is connected to the external device 200 through the RS485 data interface.

The USB interface circuit 10 is used as a main data transmission port for communicating with the outside. Thanks to the development of USB devices, the USB interface circuit 10 has enough pin interfaces, so that data input from an external power supply and data of a plurality of functional circuit modules (such as the bluetooth control chip 20, the CAN communication circuit 30, the RS232 serial communication circuit 40, and the RS485 serial communication circuit 50) CAN be led out through the pin interfaces of the USB interface circuit 10, and data transmission between various external devices 200 and the smart device 300 with different output data formats CAN be easily implemented.

The external power supply of the external device 200 is input from the external power supply interface of the USB interface circuit 10 through the plug terminal of the USB interface circuit 10, and supplies power to the plurality of functional circuit modules after passing through the voltage conversion circuit 60. The voltage conversion circuit 60 CAN receive voltage inputs of 5V and 12-24V, and provide appropriate power supply voltage for each functional circuit module after conversion, that is, the voltage conversion circuit 60 converts the external power supply voltage into the power supply voltage required by each functional circuit module, for example, in this embodiment, the bluetooth control chip 20 and the RS232 serial port communication circuit are powered by 3.3V, the CAN communication circuit 30 is powered by 5V, and the voltage conversion circuit 60 CAN simultaneously convert the external power supply voltage and then respectively supply the external power supply voltage to each functional circuit module.

The smart device 300 may transmit data to the bluetooth control chip 20 through bluetooth if it wants to transmit data to the external device 200. The bluetooth control chip 20 outputs the corresponding TTL level data to the RS232 serial communication circuit, converts the TTL level data into RS232 level data, and then connects to the external device 200 through the RS232 data interface of the USB interface circuit 10, thereby implementing RS232 communication with the external device 200.

Similar to RS232, CAN communication between the smart device 300 and the external device 200 CAN be easily achieved by the CAN communication circuit 30. And, through the RS485 serial communication circuit, can realize the RS485 communication between the external device 200 and the intelligent device 300 easily. Of course, the bluetooth control chip 20 may also directly output TTL level data to communicate with the external device 200.

In addition, for RS232 communication and TTL communication, compared to the traditional one-chip microcomputer plus bluetooth module product, the portable bluetooth communication device 100 CAN continuously change the baud rate configuration of its own CAN communication circuit 30 after being connected to the external device 200 during use, and simultaneously check whether data on the bus CAN be received, and when receiving data, CAN automatically fix the current baud rate, thereby implementing plug-and-play self-adaptation. Therefore, the baud rate of the transmission data can be changed in real time, the function needs to be adapted in real time, most of the traditional products need to enter an AT control mode independently for setting, and then the relevant configuration can be changed after the module is electrified again.

For CAN communication, a Bluetooth module which basically does not or rarely supports CAN communication is available in the market; in CAN communication, the portable Bluetooth communication device CAN also realize the self-adaptation of CAN communication baud rate by checking data input baud rate; the filtering ID and the shielding ID of the CAN communication CAN be modified in real time as required, and the data receiving and transmitting format is determined, so that the connection requirements of various different devices are met.

Therefore, the USB interface power supply device CAN be normally used under the condition of 5V output by a computer USB interface or 12-24V power supply commonly used in industry, is matched with external equipment for use, solves the communication problem of the external equipment, has stronger product performance and wider universality, CAN transmit RS232 level data, RS485 level data, TTL level data and CAN data to the outside, is suitable for being used under various conditions, and realizes the multi-aspect and multi-purpose use of products, and has wider functions. And on the premise of possessing the above-mentioned advantages, the cost can be reduced, and the volume can be further reduced.

The embodiment of the utility model provides a still disclose a portable bluetooth communication equipment, including casing and foretell portable bluetooth communication device 100, portable bluetooth communication device 100 installs in the casing, be equipped with on the casing with external equipment 200 interface assorted plug connector, casing accessible plug connector is inserted and is located external equipment 200 kneck, and realizes portable bluetooth communication device 100 through its grafting end that is equipped with and external equipment 200's electric connection.

The above examples are not intended to be exhaustive list of the present invention, and there may be many other embodiments not listed. Any replacement and improvement made on the basis of not violating the conception of the utility model belong to the protection scope of the utility model.

Claims

1. The portable Bluetooth communication device is characterized by comprising a functional circuit and a USB interface circuit, wherein the functional circuit comprises a Bluetooth control chip and a CAN communication circuit; the Bluetooth control chip is connected with the CAN communication circuit, the Bluetooth control chip and the CAN communication circuit are respectively connected with the USB interface circuit, and the USB interface circuit is provided with a plug-in end matched with an external device interface.

2. The portable bluetooth communication device of claim 1, wherein the USB interface circuit has a TTL level data interface in communication with the plug terminal, and the bluetooth control chip is connected to the TTL level data interface.

3. The portable bluetooth communication device of claim 1, wherein the USB interface circuit is provided with a CAN data interface communicated with the plug terminal, and the CAN communication circuit is connected to the CAN data interface.

4. The portable bluetooth communication device according to any one of claims 1 to 3, further comprising a voltage conversion circuit, wherein an input terminal of the voltage conversion circuit is connected to the USB interface circuit, and an output terminal of the voltage conversion circuit is connected to the bluetooth control chip and the CAN communication circuit, respectively.

5. The portable bluetooth communication device according to claim 4, wherein the USB interface circuit is provided with an external power supply interface communicated with the plug terminal, and an input terminal of the voltage conversion circuit is connected to the external power supply interface.

6. The portable bluetooth communication device according to claim 4, wherein the function circuit further comprises an RS232 serial communication circuit, and the RS232 serial communication circuit is connected to the output terminal of the voltage conversion circuit, the bluetooth control chip, and the USB interface circuit, respectively.

7. The portable bluetooth communication device according to claim 6, wherein the USB interface circuit is provided with an RS232 data interface communicated with the plug end, and the RS232 serial communication circuit is connected to the RS232 data interface.

8. The portable bluetooth communication device according to claim 4, wherein the function circuit further comprises an RS485 serial communication circuit, and the RS485 serial communication circuit is connected to the output terminal of the voltage conversion circuit, the bluetooth control chip, and the USB interface circuit, respectively.

9. The portable bluetooth communication device according to claim 8, wherein the USB interface circuit has an RS485 data interface connected to the plug end, and the RS485 serial communication circuit is connected to the RS485 data interface.

10. Portable bluetooth communication device, characterized in that, includes the casing and the portable bluetooth communication device of any one of claims 1 to 9, the portable bluetooth communication device is installed in the casing, be equipped with on the casing with external equipment interface assorted plug connector.