CN204597962U - Industrial blue-tooth module - Google Patents
Industrial blue-tooth module Download PDFInfo
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- CN204597962U CN204597962U CN201520155204.2U CN201520155204U CN204597962U CN 204597962 U CN204597962 U CN 204597962U CN 201520155204 U CN201520155204 U CN 201520155204U CN 204597962 U CN204597962 U CN 204597962U
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Abstract
The utility model discloses a kind of industrial blue-tooth module, comprise the radio frequency band filter, balance-to-nonbalance converter, signal conditioning circuit and the Bluetooth chip that connect successively, balance-to-nonbalance converter is used for signal to change between single-ended signal and differential signal, and signal conditioning circuit is for eliminating parasitic parameter and impedance matching.The utility model, based on Bluetooth2.1+EDR standard design, with the Bluetooth chip BlueCore4 of CSR company for core, has multiple interface, conveniently can be embedded in various equipment and go; Use the antenna of high-gain, there is the function be optimized signal, increased considerably the distance of Bluetooth transmission.
Description
Technical field
The utility model relates to wireless communication technology, is specifically related to industrial blue-tooth module.
Background technology
In recent years, along with the release of bluetooth Bluetooth 2.1+EDR and Bluetooth Core Specification Version 3.0 High Speed (High Speed Bluetooth core specification 3.0 editions), Bluetooth technology is not only all significantly improved in fail safe, antijamming capability, and owing to adopting enhanced data rates (EDR) function, Bluetooth data transfer speed is 3 times in the past, improve data throughout, be more suitable for real-time data transmission occasion.
Although Bluetooth 2.1+EDR and High Speed Bluetooth core specification 3.0 editions are pushed out, but it is also little based on the bluetooth module of this specification at present, the bluetooth module that major part is widely used all also exist interface few, apart from the shortcoming such as short, speed is slow, also cannot use at some special occasions (as long transmission distance, or the occasion high to requirement of real-time).
Summary of the invention
The utility model, for solving the technical problem existing for existing bluetooth module, proposes a kind of industrial blue-tooth module, is provided with high-gain aerial and to the analog link that signal is optimized, has increased considerably the distance of Bluetooth transmission.
For solving the problems of the technologies described above, the utility model adopts following technical scheme: industrial blue-tooth module, comprises the RF antenna, radio frequency band filter, the balance-to-nonbalance converter for being changed between single-ended signal and differential signal by signal, the signal conditioning circuit and the Bluetooth chip that are used for eliminating parasitic parameter and impedance matching that connect successively.
The utility model uses in modular form, and user can by Module-embedding in other equipment, as mine safety system, outdoor temperature supervisory control system etc.This bluetooth module compact size is convenient, low price, user interactions interface uses the AT instruction design of standard, user can be made need not to go to understand frequency analog relevant knowledge, the coding and decoding rule of bluetooth 2.4G signal again, only need to use standard A T instruction, just fast, easily the information in oneself system can be carried out wireless transmission by bluetooth.The Opened design of the utility model module, makes user can be as simple in used a serial ports, just can realize the wireless transmission of bluetooth.
Compared with prior art, the utility model has following technique effect:
1, based on Bluetooth 2.1+EDR standard design, with the Bluetooth chip BlueCore4 of CSR company for core, there is multiple interface, conveniently can be embedded in various equipment and go; Use the antenna of high-gain, analog link has the function be optimized signal, has increased considerably the distance of Bluetooth transmission.
2, compact, can set up point to point connect and realize stable high-rate wireless transmission, have good real-time, be conveniently widely used in housed device, as fields such as mobile phone, cordless telephone, earphones; Also be conveniently applied in safety-protection system and build monitor network; Also can be used in the field such as mine, outdoor data collect and transmit.
Accompanying drawing explanation
Fig. 1 is system architecture diagram of the present utility model;
Fig. 2 is the module map of Bluetooth chip in Fig. 1.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, but execution mode of the present utility model is not limited to this.
Embodiment
As shown in Figure 1, the utility model industrial blue-tooth module, form for core design with the BC417 chip of the BlueCore4 series of CSR company, circuit structure comprises the radio frequency band filter, balance-to-nonbalance converter (Balun), signal conditioning circuit, the Bluetooth chip BC417 that connect successively.
See Fig. 2, Bluetooth chip inside is integrated with the assembly such as bluetooth sending/receiving module, ADC modular converter, DSP, MCU, and the interface such as USB, UART, I2C, be circumscribed with FLASH memory, RS232 interface IC, USB device, I2C interface equipment, crystal oscillator and power management module.Wherein, bluetooth sending/receiving module, ADC modular converter, DSP and MCU connect successively, and MCU is connected with I2C interface, UART interface, USB interface respectively.
BC417 Bluetooth chip, crystal oscillator, outside flash storage, RS232 interface chip, I2C interface chip and USB device form digital circuits section of the present utility model.
Radio frequency band filter is connected with RF antenna, and RF antenna, radio frequency band filter, balance-to-nonbalance converter and signal conditioning circuit form analog link of the present utility model, by BC417 reception and send shared.Antenna is for transmitting and receiving 2.4G radiofrequency signal.Radio frequency band filter is used for by signal frequency-selecting to 2.4G, and the interference of other frequency band signals of filtering improves the signal quality of launch and accept.Balance-to-nonbalance converter is two-way, for being changed between single-ended and difference by signal, plays certain impedance matching effect simultaneously.Differential signal, through signal conditioning circuit, to offset the parasitic parameter of some elements, carries out impedance matching simultaneously, optimizes the signal quality of 2.4G further, is finally transferred on RF_A and RF_B two pins of BC417 Bluetooth chip.
Operation principle of the present utility model is as follows: during Received signal strength, the signal received from analog link is converted to digital signal via inner ADC change-over circuit by BC417 Bluetooth chip, decoding computing is carried out through DSP, again by decoded Signal transmissions to MCU, by MCU, signal is transferred out by interfaces such as UART, USB, I2C.When transmitting, the Signal transmissions obtained from interfaces such as UART, USB, I2C is encoded to DSP by MCU, is converting analog signal to, then launched by signal by analog link layer via inner DAC.
Above-described embodiment is a kind of execution mode of the present utility model; but execution mode of the present utility model does not limit therewith; be engaged in these those skilled in the art do not deviate from the utility model spirit and principle under make any amendment, replacement, improvement, be all included in protection range of the present utility model.
Claims (4)
1. industrial blue-tooth module, it is characterized in that, comprising the RF antenna, radio frequency band filter, the balance-to-nonbalance converter for being changed between single-ended signal and differential signal by signal, the signal conditioning circuit and the Bluetooth chip that are used for eliminating parasitic parameter and impedance matching that connect successively.
2. industrial blue-tooth module according to claim 1, it is characterized in that, described Bluetooth chip comprises bluetooth sending/receiving module, ADC modular converter, DSP, MCU, USB interface, UART interface and I2C interface, bluetooth sending/receiving module, ADC modular converter, DSP and MCU connect successively, and MCU is connected with I2C interface, UART interface, USB interface respectively.
3. industrial blue-tooth module according to claim 2, is characterized in that, the external FLASH memory of described Bluetooth chip, RS232 interface IC, USB device, I2C interface equipment, crystal oscillator and power management module.
4. the industrial blue-tooth module according to any one of claim 1-3, is characterized in that, described Bluetooth chip is BC417.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520155204.2U CN204597962U (en) | 2015-03-18 | 2015-03-18 | Industrial blue-tooth module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520155204.2U CN204597962U (en) | 2015-03-18 | 2015-03-18 | Industrial blue-tooth module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204597962U true CN204597962U (en) | 2015-08-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520155204.2U Expired - Fee Related CN204597962U (en) | 2015-03-18 | 2015-03-18 | Industrial blue-tooth module |
Country Status (1)
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| CN (1) | CN204597962U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105307292A (en) * | 2015-11-12 | 2016-02-03 | 邓志华 | Double-antenna intelligent Bluetooth-WIFI (Wireless Fidelity) two-in-one module |
| CN105471445A (en) * | 2015-11-12 | 2016-04-06 | 邓志华 | Novel and intelligent Bluetooth-WIFI integrated module |
| CN105788208A (en) * | 2016-03-01 | 2016-07-20 | 秦铭海 | Medical wireless module |
| CN107086356A (en) * | 2017-05-18 | 2017-08-22 | 北京小米移动软件有限公司 | Antenna modules and terminal |
| CN107124211A (en) * | 2017-05-16 | 2017-09-01 | 南京铁道职业技术学院 | A kind of industrial blue-tooth wireless transceiver |
| CN107358087A (en) * | 2017-07-07 | 2017-11-17 | 北京海泰方圆科技股份有限公司 | Information storage means and device for the Bluetooth chip of Bluetooth identities authentication device |
| CN109286424A (en) * | 2018-11-22 | 2019-01-29 | 深圳市蓝蜂时代实业有限公司 | A kind of Bluetooth adapter and implementation method of changeable input pattern |
-
2015
- 2015-03-18 CN CN201520155204.2U patent/CN204597962U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105307292A (en) * | 2015-11-12 | 2016-02-03 | 邓志华 | Double-antenna intelligent Bluetooth-WIFI (Wireless Fidelity) two-in-one module |
| CN105471445A (en) * | 2015-11-12 | 2016-04-06 | 邓志华 | Novel and intelligent Bluetooth-WIFI integrated module |
| CN105788208A (en) * | 2016-03-01 | 2016-07-20 | 秦铭海 | Medical wireless module |
| CN107124211A (en) * | 2017-05-16 | 2017-09-01 | 南京铁道职业技术学院 | A kind of industrial blue-tooth wireless transceiver |
| CN107086356A (en) * | 2017-05-18 | 2017-08-22 | 北京小米移动软件有限公司 | Antenna modules and terminal |
| CN107086356B (en) * | 2017-05-18 | 2023-08-29 | 北京小米移动软件有限公司 | Antenna Module and Terminal |
| CN107358087A (en) * | 2017-07-07 | 2017-11-17 | 北京海泰方圆科技股份有限公司 | Information storage means and device for the Bluetooth chip of Bluetooth identities authentication device |
| CN109286424A (en) * | 2018-11-22 | 2019-01-29 | 深圳市蓝蜂时代实业有限公司 | A kind of Bluetooth adapter and implementation method of changeable input pattern |
| CN109286424B (en) * | 2018-11-22 | 2024-02-02 | 深圳市蓝蜂时代实业有限公司 | Bluetooth adapter capable of switching input modes and implementation method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150826 Termination date: 20200318 |