CN203859747U - Bluetooth communication card - Google Patents
Bluetooth communication card Download PDFInfo
- Publication number
- CN203859747U CN203859747U CN201420278307.3U CN201420278307U CN203859747U CN 203859747 U CN203859747 U CN 203859747U CN 201420278307 U CN201420278307 U CN 201420278307U CN 203859747 U CN203859747 U CN 203859747U
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- module
- isolator
- bluetooth
- controller
- communication card
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- Expired - Fee Related
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Abstract
The utility model discloses a Bluetooth communication card. The card comprises a controller, a Bluetooth module, a data storage module, an LED display module, a reset circuit and a crystal oscillator circuit. The card is characterized by further comprising an isolation module. The isolation module comprises an isolator A and an isolator B. The controller is separately connected to the LED display module, the Bluetooth module, the data storage module, the reset circuit and the crystal oscillator circuit. The card can connect an intelligent mobile phone, a laptop, a desktop and various digital devices in a wireless communication manner, so as to form a wireless communication network. The isolation module is added to effectively isolate the interference of an external electric signal and to enhance safety and reliability of the system.
Description
Technical field
The utility model relates to wireless communication field, particularly a kind of Bluetooth communication card.
Background technology
Bluetooth is the radiotechnics of a kind of support equipment short haul connection (in general 10m).Can comprise mobile phone, PDA, wireless headset, notebook computer, be correlated with and carry out wireless messages exchange between numerous equipment such as peripheral hardware.Utilize " bluetooth " technology, can effectively simplify the communication between mobile communication terminal device, also communicating by letter between simplified apparatus and internet Internet successfully, thus transfer of data becomes more rapidly efficiently, is radio communication widening road.
Bluetooth technology can by intelligent mobile phone and notebook computer, palmtop PC and various digitized information equipment with a kind of small-sized, wireless communication technology couples together cheaply, and then form a kind of individual network at one's side, make various informationalized Mobile portable equipments within its scope can seamlessly realize resource-sharing.
Traditional resource-sharing and information transferring method depend on wire cable more and limited local area network (LAN) completes, and its mode can be to share dish, mail etc., and the resource-sharing that limited local area network (LAN) is realized is easily lost because the interference such as network cause resource.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, a kind of Bluetooth communication card is provided, by smart mobile phone, notebook computer, desktop computer and various digitizer, the mode by radio communication couples together this Bluetooth communication card, and introduce the interference of the effective isolating exterior electric signal of isolation module, strengthen the safety and reliability of system.
The purpose of this utility model is achieved through the following technical solutions: a kind of Bluetooth communication card, it comprises controller, bluetooth module, data memory module, LED display module, reset circuit and crystal oscillating circuit, it also comprises isolation module, and isolation module comprises isolator A and isolator B; Controller joins with LED display module, bluetooth module, data memory module, reset circuit, crystal oscillating circuit respectively.
Described isolator A and isolator B are optocoupler isolator PC367, a delivery outlet of controller is connected with the negative electrode of isolator A, the emitter of isolator A is connected with the receiving terminal of field apparatus serial ports, an input port of controller is connected with the afflux utmost point of isolator B, and the negative electrode of isolator B is connected with the transmitting terminal of field apparatus serial ports.
Described bluetooth module is Bluecore2-Flash chip.
Described data memory module is SDRAM.
The utility model can the mode by radio communication couple together smart mobile phone, notebook computer, desktop computer and various digitizer, forms a cordless communication network.Meanwhile, introduce isolation module, strengthened the safety and reliability of system, when Bluetooth communication field apparatus is connected with communication module, adopt high-speed light coupling isolation technology, communication module and field apparatus are kept apart completely from electric.This mode has two kinds of benefits: on the one hand signal has been carried out to isolation effectively, utilized on the other hand photoisolator two ends to adopt the feature of different power voltage supplies, reached the object that signal level is changed.
Accompanying drawing explanation
Fig. 1 is Bluetooth communication card internal module connection layout;
Fig. 2 serial communication buffer circuit.
Embodiment
Below in conjunction with accompanying drawing, the technical solution of the utility model is described in further detail, but protection range of the present utility model is not limited to the following stated.
As shown in Figure 1 and Figure 2, a kind of Bluetooth communication card, it comprises controller, bluetooth module, data memory module, LED display module, reset circuit and crystal oscillating circuit, and it also comprises isolation module, and isolation module comprises isolator A and isolator B; Controller joins with LED display module, bluetooth module, data memory module, reset circuit, crystal oscillating circuit respectively.Described isolator A and isolator B are optocoupler isolator PC367, a delivery outlet of controller is connected with the negative electrode of isolator A, the emitter of isolator A is connected with the receiving terminal of field apparatus serial ports, an input port of controller is connected with the afflux utmost point of isolator B, and the negative electrode of isolator B is connected with the transmitting terminal of field apparatus serial ports.Described bluetooth module is Bluecore2-Flash chip.Described data memory module is SDRAM.
After system powers on, microcontroller initialization self and all peripheral interfaces, bluetooth module is initiatively found other equipment and is automatically connected, and then system enters ready wait state.While carrying out transfer of data, controller receives the numerical value transmitting, and according to certain agreement regulation, it is changed, then is shown on display (LED).Meanwhile, controller calls the numerical analysis program of self, and analysis user will be inputted data still will send data.For sending subsystem, controller is write down each data and is packed, stores, until user presses " transmission ".Now, controller changes into transmission state, controls bluetooth module the data of storage are just now sent.For receiving subsystem, controller receives the data that transmit from bluetooth module by the agreement setting in advance, until run into end-data symbol, then microcontroller to data analysis, unpack, and it is upper or be transferred to the field apparatus being connected by cable with it to be shown to display (LED).More than work and can under the control of existing bluetooth driver, complete, the application on this basis, introduce isolation module, strengthened the safety and reliability of system, when Bluetooth communication field apparatus is connected with communication module, adopt high-speed light coupling isolation technology, communication module and field apparatus are kept apart completely from electric.This mode has two kinds of benefits: on the one hand signal has been carried out to isolation effectively, utilized on the other hand photoisolator two ends to adopt the feature of different power voltage supplies, reached the object that signal level is changed.
Claims (4)
1. a Bluetooth communication card, it comprises controller, bluetooth module, data memory module, LED display module, reset circuit and crystal oscillating circuit, it is characterized in that: it also comprises isolation module, controller joins with isolation module, LED display module, bluetooth module, data memory module, reset circuit, crystal oscillating circuit respectively.
2. a kind of Bluetooth communication card according to claim 1, it is characterized in that: described isolation module comprises isolator A and isolator B, isolator A and isolator B are optocoupler isolator PC367, a delivery outlet of controller is connected with the negative electrode of isolator A, the emitter of isolator A is connected with the receiving terminal of field apparatus serial ports, an input port of controller is connected with the afflux utmost point of isolator B, and the negative electrode of isolator B is connected with the transmitting terminal of field apparatus serial ports.
3. a kind of Bluetooth communication card according to claim 1, is characterized in that: described bluetooth module is Bluecore2-Flash chip.
4. a kind of Bluetooth communication card according to claim 1, is characterized in that: described data memory module is SDRAM.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420278307.3U CN203859747U (en) | 2014-05-28 | 2014-05-28 | Bluetooth communication card |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420278307.3U CN203859747U (en) | 2014-05-28 | 2014-05-28 | Bluetooth communication card |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203859747U true CN203859747U (en) | 2014-10-01 |
Family
ID=51609591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420278307.3U Expired - Fee Related CN203859747U (en) | 2014-05-28 | 2014-05-28 | Bluetooth communication card |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203859747U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108537317A (en) * | 2018-03-08 | 2018-09-14 | 新智数字科技有限公司 | Bluetooth rechargeable card and recharge method |
-
2014
- 2014-05-28 CN CN201420278307.3U patent/CN203859747U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108537317A (en) * | 2018-03-08 | 2018-09-14 | 新智数字科技有限公司 | Bluetooth rechargeable card and recharge 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 |
Granted publication date: 20141001 Termination date: 20160528 |