CN203025701U - Bluetooth serial adapter - Google Patents
Bluetooth serial adapter Download PDFInfo
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- CN203025701U CN203025701U CN 201320073307 CN201320073307U CN203025701U CN 203025701 U CN203025701 U CN 203025701U CN 201320073307 CN201320073307 CN 201320073307 CN 201320073307 U CN201320073307 U CN 201320073307U CN 203025701 U CN203025701 U CN 203025701U
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- bluetooth
- serial
- command information
- port adapter
- serial port
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Abstract
The utility model is suitable for the technical field of wireless communication and provides a Bluetooth serial adapter. The Bluetooth serial adapter comprises a command obtaining device for obtaining command information, a Bluetooth module for realizing Bluetooth function, a singlechip microcomputer for analyzing the command information and transmitting the analyzed command information to the Bluetooth module, and a power supply module for providing working voltage for the Bluetooth module and the singlechip microcomputer, wherein the power supply module is electrically connected with the Bluetooth module and the singlechip microcomputer, the command obtaining device is electrically connected with the signal input end of the singlechip microcomputer, the signal output end of the singlechip microcomputer is electrically connected with the signal input end of the Bluetooth module. The Bluetooth adapter comprises a serial conversion device and a signal conversion circuit. The serial conversion device is eclectically connected to the Bluetooth module through the signal conversion circuit. By adoption of the technical scheme provided by the utility model, the problem that the serial port of the existing device cannot perform wireless communication can be solved, and the Bluetooth serial adapter is convenient to use and low in cost.
Description
Technical field
The utility model belongs to wireless communication technology, relates in particular to a kind of Bluetooth serial port adapter that has.
Background technology
Bluetooth technology is a kind of short-distance wireless communication technology, guarantees that because it has abundant agreement the compatibility between bluetooth equipment is widely used.And the serial ports transmission must be adopted physical cable, and transmission range is short, in the situation that many partition walls and parting often can't use.A lot of traditional instrument settings have comprised serial ports, can use serial ports to carry out data transmission, but there is no wireless transmission function, realize that these equipment can carry out wireless communication transmission, just need to be in these equipment the integrated wireless transport module, but the production cost of product is increased.
Therefore, how to make do not have blue tooth interface, but the equipment with serial ports can be realized wireless transmission, is the problem that prior art need to solve.
Summary of the invention
The purpose of this utility model is to provide a kind of Bluetooth serial port adapter, is intended to the problem that the equipment with serial ports that solution never has wireless transmission function is realized wireless transmission.
the utility model is a kind of Bluetooth serial port adapter of realizing like this, comprise the instruction deriving means that obtains command information, carry out the bluetooth module of Bluetooth function, resolve command information and the command information of resolving is transferred to the single-chip microcomputer of bluetooth module, the power module of operating voltage is provided for bluetooth module and single-chip microcomputer, wherein, power module is electrically connected bluetooth module and single-chip microcomputer, the instruction deriving means is electrically connected the signal input part of single-chip microcomputer, the signal output part of single-chip microcomputer is electrically connected the signal input part of described bluetooth module, described Bluetooth serial port adapter also comprises serial ports switching device and a signaling conversion circuit, described serial ports switching device is electrically connected described bluetooth module by signaling conversion circuit.
More excellent, described Bluetooth serial port adapter comprises the indicator of the power supply status whether the indication power supply works, described indicator of the power supply status is electrically connected described power module.
More excellent, described Bluetooth serial port adapter also comprises the bluetooth state pilot lamp of indication bluetooth duty, described bluetooth state pilot lamp is electrically connected described single-chip microcomputer.
More excellent, described serial ports switching device connects serial equipment, receives the data that described signaling conversion circuit sends, and is sent to described serial equipment, for the communication connection that realizes between serial equipment and Bluetooth serial port adapter.
More excellent, described serial ports switching device is to realize the DB9 interface female or the male that establish a communications link between serial equipment and Bluetooth serial port adapter.
More excellent, described signaling conversion circuit receives the command information that bluetooth module sends, and after being changed into the command information that serial equipment can identify, the command information that receives is transferred to the serial ports switching device, its signal input part is electrically connected bluetooth module, and signal output part is electrically connected described serial ports switching device.More excellent, described instruction deriving means is button.
More excellent, described command information comprises: arrange with the command information of being connected parameter, transmit and receive data, initiatively match and the command information that is connected
Adopt technical scheme provided by the utility model, can effectively solve the problem that existing serial equipment can not carry out blue tooth wireless communication, easy to use, cost is low.
Description of drawings
Fig. 1 is the hardware block diagram of the Bluetooth serial port adapter that provides of the utility model the first embodiment;
Fig. 2 is the hardware block diagram of the Bluetooth serial port adapter that provides of another embodiment of the utility model;
Fig. 3 is the hardware block diagram of the Bluetooth serial port adapter that provides of the utility model the 3rd embodiment.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
See also Fig. 1, the hardware block diagram of the Bluetooth serial port adapter that provides for the utility model the first embodiment for convenience of explanation, has only been listed the part relevant to the present embodiment.
The Bluetooth serial port adapter that the utility model the first embodiment provides comprises instruction deriving means 10, single-chip microcomputer 20, bluetooth module 30, power module 40, signaling conversion circuit 50 and serial ports switching device 60.
Wherein, power module 40 is electrically connected with single-chip microcomputer 20 and bluetooth module 30 respectively, is used for providing operating voltage to bluetooth module 30 and single-chip microcomputer 20.Instruction deriving means 10 is electrically connected the signal input part of single-chip microcomputer 20, is used for the command information that obtains is transferred to single-chip microcomputer 20.The signal output part of the signal input part link order deriving means of single-chip microcomputer 20, the signal output part of single-chip microcomputer 20 is electrically connected the signal input part of bluetooth module 30, and the signal output part of bluetooth module 30 connects serial ports switching device 60 by signaling conversion circuit 50.Signaling conversion circuit 50 receives the command information that bluetooth module 30 sends, and after being changed into the command information that serial equipment can identify, the command information that receives is transferred to serial ports switching device 60, its signal input part is electrically connected bluetooth module 30, and signal output part is electrically connected described serial ports switching device 60.
Serial ports switching device 60 connects serial equipment, receives the data that signaling conversion circuit 50 sends, and is sent to serial equipment, for the communication connection that realizes between serial equipment 60 and Bluetooth serial port adapter.According to the serial ports type of serial equipment, serial ports switching device 60 is female or the male of DB9 interface.
Adopt above-mentioned technical scheme, if this Bluetooth serial port adapter is connected correctly with the serial equipment hardware circuit, and after powering up startup, can connect with another Bluetooth terminal, identification and memory are to method, apparatus, and find the service that it provides, by this service news that work of going forward side by side that can connect with it, the function that Bluetooth serial port adapter can provide depends on its bluetooth module tunneling stack and standard (Profile).
The below illustrates this Bluetooth adapter and how to work.
Bluetooth protocol repertory and standard application commonly used have been encapsulated in bluetooth module 30.In general, bluetooth module 30 has two kinds of mode of operations, and namely parameter arranges pattern and data-transmission mode, can be set to acquiescence when Bluetooth serial port adapter and enter data-transmission mode when switching on power.
in parameter, pattern is set, the serial equipment that connects Bluetooth serial port adapter sends AT (Attention by end application to serial ports, a kind of GSM (Global System for Mobile Communications, global system for mobile communications) control command, every order is with letter " AT " beginning, thereby gain the name) order, serial ports switching device 60 should be ordered by signaling conversion circuit 50 and be sent to bluetooth module 30, bluetooth module 30 is carried out corresponding operation after receiving the AT order, the parameter of change bluetooth module 30, described parameter comprises the bluetooth title, acquiescence pairing code, baud rate etc.
When the user who uses this Bluetooth serial port adapter wants to change the use state of bluetooth module 30, can command information be transferred to Bluetooth serial port adapter by the instruction deriving means 10 that is arranged on Bluetooth serial port adapter, after instruction deriving means 10 gets command information, command information is transferred to the single-chip microcomputer 20 that is attached thereto.Usually, instruction deriving means 10 can be keyboard, and command information comprises the command information that arranges and revise parameter, the command information that transmits and receive data, initiatively pairing and the command information that is connected etc.For example, after single-chip microcomputer 20 received initiatively pairing and the command information that is connected, single-chip microcomputer 20 sent scan commands for bluetooth module 30, not disconnecting receipts scanning result.After the end of scan, 20 pairs of scanning results of single-chip microcomputer are processed, and successively the equipment that scans are sent pairing and bind command to bluetooth module 30, until successful connection.After bluetooth module 30 and the equipment that scans successfully connect, can communicate between bluetooth module 30 and the equipment that scans, and serial equipment is by carrying out data interaction between serial ports switching device 60 and signaling conversion circuit 50 and bluetooth module 30, therefore, can realize that serial equipment is by carrying out Bluetooth communication between Bluetooth serial port adapter and the equipment that scans.
When bluetooth module 30 switches to data-transmission mode, at first, bluetooth module 30 sends pairing request according to pre-configured authentication password to other equipment, and requested equipment is inputted identical authentication password when acknowledges requests, namely make two bluetooth equipment successful matchings, otherwise failure.If the failure would not do not carry out next step operation with this equipment.If successful matching, bluetooth module 30 is connected with this equipment, namely is in connection status after successful connection.Bluetooth module 30 can disconnect connection and be connected the request connection to the order that serial ports sends according to application program, the needs that specifically depend on application, two bluetooth equipments that successfully connect can carry out data transmission, and the purposes of the data of transmission depends on application program.
Referring to Fig. 2, that bio-occlusion bluetooth module 30 and single-chip microcomputer 20 provide operating voltage for the ease of the identification power module, in novel the second embodiment of this enforcement, the bluetooth serial ports interconnecting device also comprises an indicator of the power supply status 70, indicator of the power supply status 70 is electrically connected power module 40, whether when power module 40 work, power light 70 is opened, and work by flicker or the lasting glittering sign power module 70 of light.
Embodiment three, see also Fig. 3.Duty for the ease of identification bluetooth module 30, can install a bluetooth state pilot lamp 80 additional at Bluetooth serial port adapter, this bluetooth state pilot lamp 80 is electrically connected single-chip microcomputer 20, can be by bluetooth state pilot lamp 80 being set in different colors or by indicating bluetooth module 30 to be in which kind of duty at different flashing modes.
The above is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (8)
1. Bluetooth serial port adapter, comprise the instruction deriving means that obtains command information, realize the bluetooth module of Bluetooth function, resolve command information and the command information of resolving is transferred to the single-chip microcomputer of bluetooth module, the power module of operating voltage is provided for bluetooth module and single-chip microcomputer, wherein, power module is electrically connected bluetooth module and single-chip microcomputer, the instruction deriving means is electrically connected the signal input part of single-chip microcomputer, the signal output part of single-chip microcomputer is electrically connected the signal input part of described bluetooth module, it is characterized in that, described Bluetooth serial port adapter comprises serial ports switching device and a signaling conversion circuit, described serial ports switching device is electrically connected described bluetooth module by signaling conversion circuit.
2. Bluetooth serial port adapter as claimed in claim 1, is characterized in that, described Bluetooth serial port adapter comprises the indicator of the power supply status whether the indication power supply works, and described indicator of the power supply status is electrically connected described power module.
3. Bluetooth serial port adapter as claimed in claim 1 or 2, is characterized in that, described Bluetooth serial port adapter also comprises the bluetooth state pilot lamp of indication bluetooth duty, and described bluetooth state pilot lamp is electrically connected described single-chip microcomputer.
4. Bluetooth serial port adapter as claimed in claim 1 or 2, it is characterized in that, described serial ports switching device connects serial equipment, receives the data that described signaling conversion circuit sends, be sent to described serial equipment, for the communication connection that realizes between serial equipment and Bluetooth serial port adapter.
5. Bluetooth serial port adapter as claimed in claim 4, is characterized in that, described serial ports switching device is DB9 interface female or male.
6. Bluetooth serial port adapter as claimed in claim 1 or 2, it is characterized in that, described signaling conversion circuit receives the command information that bluetooth module sends, and after being changed into the command information that serial equipment can identify, the command information that receives is transferred to the serial ports switching device, its signal input part is electrically connected bluetooth module, and signal output part is electrically connected described serial ports switching device.
7. Bluetooth serial port adapter as claimed in claim 1 or 2, is characterized in that, described instruction deriving means is button.
8. Bluetooth serial port adapter as claimed in claim 1 or 2, is characterized in that, described command information comprises: arrange with the command information of being connected parameter, initiatively match and the command information that is connected and the command information that transmits and receive data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320073307 CN203025701U (en) | 2013-01-29 | 2013-01-29 | Bluetooth serial adapter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320073307 CN203025701U (en) | 2013-01-29 | 2013-01-29 | Bluetooth serial adapter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203025701U true CN203025701U (en) | 2013-06-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320073307 Expired - Lifetime CN203025701U (en) | 2013-01-29 | 2013-01-29 | Bluetooth serial adapter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203025701U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106971525A (en) * | 2017-03-23 | 2017-07-21 | 青岛海信日立空调系统有限公司 | A kind of Bluetooth signal conversion equipment and Bluetooth signal conversion method |
-
2013
- 2013-01-29 CN CN 201320073307 patent/CN203025701U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106971525A (en) * | 2017-03-23 | 2017-07-21 | 青岛海信日立空调系统有限公司 | A kind of Bluetooth signal conversion equipment and Bluetooth signal conversion method |
| CN106971525B (en) * | 2017-03-23 | 2020-03-13 | 青岛海信日立空调系统有限公司 | Bluetooth signal conversion device and Bluetooth signal conversion method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: SHENZHEN RF-STAR TECHNOLOGY Co.,Ltd. Document name: Notification of Termination of Patent Right |
|
| DD01 | Delivery of document by public notice | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130626 |
|
| CX01 | Expiry of patent term |