CN2544472Y - Blueteeth technology based LAN radio connection equipment - Google Patents
Blueteeth technology based LAN radio connection equipment Download PDFInfo
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- CN2544472Y CN2544472Y CN 02262684 CN02262684U CN2544472Y CN 2544472 Y CN2544472 Y CN 2544472Y CN 02262684 CN02262684 CN 02262684 CN 02262684 U CN02262684 U CN 02262684U CN 2544472 Y CN2544472 Y CN 2544472Y
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Abstract
The utility model relates to the bluetooth technology based LAN radio connection equipment. Single or multiple data terminal can be connected to the local area network in a wireless way through the utility model, and further is connected with the Internet through the local area network. The equipment consists of an antenna, a bluetooth module and an embedded platform; wherein, the embedded platform comprises a microprocessor, a crystal oscillator A, a reset/watchdog, a data register, a flash memory, an Ethernet transceiver, a crystal oscillator, a counter A, a counter, a light-emitting diode, an isolation transformer, and an RJ 45 connector; wherein, the bluetooth module is connected with the microprocessor through a serial port; the microprocessor is respectively connected with the data register, the flash memory, the Ethernet transceiver and the counter A; and the Ethernet transceiver is connected with the LAN cable through the isolation transformer and the RJ 45 connector.
Description
One, technical field:
This utility model is used to solve the networking problem of Wireless Personal Network, can make single or multiple data terminals by the present invention, access to LAN wirelessly, and then link to each other with Internet by local area network (LAN), be under the jurisdiction of the technical field of radio reception device.
Two, background technology:
In the last few years, the develop rapidly of Internet technology had been penetrated into the every nook and cranny in the world.Wherein optical fiber is mainly used in remote transfer of data, and LMDS mainly is the transfer of data that is used for last kilometer, and local area network (LAN) then will be faced last 10 meters data transmission problems, can be divided into wired internet and wireless mobile Internet two big classes.
Wherein the shortcoming of wired internet is that wiring is loaded down with trivial details, and mobility is poor, is unfavorable for readjusting and upgrading of network topology; The characteristics of wireless mobile Internet are that mobility is strong, not only can be used as replenishing and extension of wired internet, but also can backup each other with wired internet.
Wireless mobile Internet need adopt wireless access technology, present mainly containing infrared (IrDA), 802.11, family's Intranet (HomeRF) and bluetooth etc.Wherein infrared cost is minimum, but its communication distance is generally less than 1 meter, and to make the infrarede emitting diode of communicating pair and the angle of detection head be no more than 30 degree, also to guarantee unscreened condition, in complex environments such as meeting-place, use very inconvenient, and infrarede emitting diode is not a kind of very durable device, can can't bear the heavy load; 802.11 transmission range be 100 meters, be unfavorable for maintaining secrecy of data, and its cost is than higher, and its working group too lags behind market when the standard of formulation, caused its standard to follow the track of an overturned cart of " ATM " then; Family's Intranet is widened narrow passage, will push way by shoving or bumping on several tracks as a truck, thereby cause interfering with each other between the equipment; Then interference free performance is rather noticeable flexibly because its moderate cost reaches for Bluetooth technology,
Three, summary of the invention:
(1) goal of the invention
The purpose of this utility model provide a kind of do not need to carry out loaded down with trivial details wiring just can be in some indoor and outdoor application scenarios such as meeting, exhibitions, for numerous clients provide a kind of short distance, are not subjected to that barrier influences, the life-span is long, cost is lower, strong interference immunity, the local area network wireless access device based on Bluetooth technology that security performance is high.
(2) technical scheme
The utility model is a kind of local area network wireless access device based on Bluetooth technology, by signal receive section, signal processing and segment signal output are formed, this equipment is by antenna, bluetooth module, embedded platform is formed, embedded platform comprises: microprocessor, crystal oscillator A, reset/house dog, data register, flash memory, ethernet transceiver, crystal oscillator, counter A, counter, light-emitting diode, isolating transformer, the RJ45 joint, wherein bluetooth module is connected with microprocessor by serial ports, microprocessor respectively with data register, flash memory, ethernet transceiver, counter A joins, and ethernet transceiver is connected to the local area network (LAN) netting twine by isolating transformer and RJ45 joint; Corresponding " TXD, RXD, RTS, the CTS " end that meets microprocessor U1 of " TXD, RXD, RTS, CTS " end of bluetooth module U12; The pin of the corresponding microprocessor U1 of the pin of ethernet transceiver U7 " 42～63 " difference ", L7～L10, N7～N10, P7～P10, M7～M10 " join; The data terminal of microprocessor U1 " D " and address end " A " join with the data terminal " D " and the address end " A " of data register and flash memory respectively.
(3) technique effect
This utility model has following advantage:
1. make some application scenarios, indoor and outdoor such as exhibition room, meeting-place, hospital, school only need an access device just can realize that all equipment with information transfer capability communicate with Internet, both addressable local area network (LAN), also addressable Internet;
2. mobility is strong, and people are carried network, and it is more convenient that mobile communication equipment is used, and expense is cheaper;
3. link setup is convenient, fast, removes the cloth netting twine from, connects the hardship of HUB, even can make indoor place power consumption equipment only use power power-line, and do not use other any line;
4. be easy to the expansion and the upgrading of network;
5. by the communication distance of bluetooth and authentication etc. determine that its data security is reliable;
6. adopt the frequency hopping mode, strong interference immunity;
7. used low in energy consumption, so the life-span is longer;
8. adopt the radio communication of microwave frequency band, penetrable dielectric is not influenced by nonmetal barrier;
9. cost is lower.
Four, description of drawings
Fig. 1 is a general structure block diagram of the present utility model.Antenna 1, bluetooth module 2, microprocessor 3, crystal oscillator A4 wherein arranged, reset/house dog 5, data register 6, flash memory 7, ethernet transceiver 8, crystal oscillator 9, counter A10, counter 11, light-emitting diode 12, isolating transformer 13, RJ45 joint 14.
Fig. 2 is the schematic diagram of application scenarios of the present utility model.
Fig. 3 is circuit theory diagrams of the present utility model.
Five, embodiment
The access device circuit block diagram
This invention comprises antenna, bluetooth module and embedded platform, and antenna is used for receiving and launching electromagnetic wave; Bluetooth module is used for modulation; Embedded platform adopts built-in Linux operating system, and as core, data register and flash memory are as peripheral circuit with microprocessor, and Bluetooth wireless communication protocol stack and Ethernet protocol stack operate on this platform.
The application scenarios of access device
Access device links to each other with local area network by netting twine, can link to each other with Internet thus; User's various terminal equipments as mobile phone, PDA, notebook computer, printer and facsimile machine or the like, can link to each other with this access device by bluetooth module, thereby link to each other down to Internet with local area network (LAN).
Circuit theory diagrams
Fig. 3 is this inventive circuit schematic diagram, wherein mainly comprises microprocessor U1 and data register U3 and U4, and crystal oscillator U2 and house dog U6; Ethernet transceiver U7 and flash memory U10, U11, and crystal oscillator U9, counter U13, U14, isolating transformer U8, serial port drive U5 and bluetooth module U12; Power supply regulator block U15,
The present invention's (based on local area network wireless access device of Bluetooth technology) organically combines the swiftest and the most violent embedded technology and the Bluetooth technology of development at present, thereby be the wireless mobile interconnected function that wireless access is provided, main contents are the circuit of specific implementation, and its circuit constitutes block diagram as shown in Figure 1.
Wherein bluetooth module 2 comprises base band (rear end) and two parts of radio frequency (2.4GHz front end), has mainly realized the function of wireless transmission, sets up the wireless connections of client terminal and access device.Antenna 1 is used for receiving and to external radiation 2.4GHz electromagnetic wave, delivering to embedded platform by serial ports after the processing of bluetooth module 2.
The core of embedded platform is a microprocessor 3, and its peripheral circuit comprises data register 6 and flash memory 7.Wherein data register 6 is used for temporarily storing some ephemeral datas; Flash memory 7 is equivalent to the hard disk in the computer, built-in Linux operating system (comprising ICP/IP protocol stack, ppp protocol, Routing Protocol etc.) and bluetooth core protocol stack (comprising logical link control and adaptation protocol, cable replacement agreement, service discovery protocol etc.) have been installed in the inside, and the serial ports Simulation drive.
Wherein crystal oscillator 4 and 25MHz crystal oscillator 9 are respectively microprocessor 3 and ethernet transceiver 8 provides clock signal; House dog 5 can be used for resetting with moving, also can be used for monitor voltage, and brownout resets; Serial ports is used for and the bluetooth module swap data; Counter 10,11 is used for frequency division, produces the control signal of run indicator; Ethernet transceiver 8 is used to transmit the data between microprocessor 3 and the local area network (LAN); Isolating transformer 13 is used to isolate the interference of local area network (LAN); RJ45 joint 14 is used to provide netting twine to connect.
Bluetooth module among Fig. 1 links to each other with embedded platform by serial ports, for the user provides the wireless connections of Internet, thereby realized wireless mobile interconnecting function, in other words, the user can come browsing page by the Internet access point that access device provided, swap data.Its concrete operation principle is: network layer protocols such as summing point end-to-end protocol (EEP) and TCP/IP on the access device simulative serial port that the cable replacement agreement provides in bluetooth protocol repertory, oneself is then as the peer-peer protocol server, and the client of the customer terminal equipment that is equipped with bluetooth module as peer-peer protocol, for it provides the service of wireless access local area network (LAN).
The concrete course of work is: when each client's terminal equipment is wanted to visit Internet or visited mutually, at first send link setup request with access device by terminal equipment, after access device is accepted this request, promptly set up wireless transmission channel between terminal and the access device, access device has complete network configuration, is a terminal of outside Internet.The exchanges data of this access device between both can a plurality of thereon user terminals of the company of finishing, also can link to each other with Internet by netting twine, thereby make some information of Internet pass through the local area network (LAN) network interface card, give application program by the external network adapter, application program is packaged into corresponding packet according to corresponding Bluetooth communication protocol with this information again and gives terminal equipment, and vice versa.
Its application scenarios as shown in Figure 2, each user can be with oneself terminal equipment by the mutual swap data of this bluetooth access device or directly and the Internet swap data.
Access device links to each other with local area network by netting twine, can link to each other with Internet thus; User's various terminal equipments as mobile phone, PDA, notebook computer, printer and facsimile machine or the like, can link to each other with this access device by bluetooth module, thereby link to each other down to Internet with local area network (LAN).
Embodiment 1
1, the embodiment of the microprocessor MCF5272 of Ericsson bluetooth module+Motorola Inc.
Antenna 1 adopts anti-" F " type antenna in self-designed plane, bluetooth module 2 (U12) is realized with the module ROK 101 008 of Ericsson, microprocessor 3 (U1) is realized with the MCF5272 that Motorola Inc. produces, crystal oscillator A4 (U2) frequency is 66MHz, the house dog 5 (U6) that resets is realized with the MAX708 of U.S. letter company, data register 6 (U3 and U4) is total to the 16M byte with 2 8M bytes, the V54C365164VB of MOSEL company realizes, flash memory 7 (U10 and U11) is total to the 4M byte by 2 2M bytes, the AM29LV160DB-70EC of AMD realizes, ethernet transceiver 8 (U7) is realized with the LXT971 of Intel Corp., the frequency of crystal oscillator 9 (U9) is 25MHz, counter A10 (U13) sum counter 11 (U14) all realize with 74HC4040, light-emitting diode 12 (D3) selects for use common light-emitting diode to realize, isolating transformer 13 (U8) model is PM44-11BG, also has RJ45 joint 14 (P3).
2, the embodiment of CSR bluetooth+micro controller module
Antenna 1 adopts homemade quarter-wave wire antenna; Bluetooth module 2, microprocessor 3, data register 6 and flash memory 7 are all realized with the monolithic bluetooth module BC02 that CSR company produces; Identical in remaining circuit and the example 1.
Claims (4)
1, a kind of local area network wireless access device based on Bluetooth technology, by signal receive section, signal processing and segment signal output are formed, it is characterized in that this equipment is by antenna (1), bluetooth module (2), embedded platform is formed, embedded platform comprises: microprocessor (3), crystal oscillator A (4), (5) reset/house dog, data register (6), flash memory (7), ethernet transceiver (8), crystal oscillator (9), counter A (10), counter (11), light-emitting diode (12), isolating transformer (13), RJ45 joint (14), wherein bluetooth module (2) is connected with microprocessor (3) by serial ports, microprocessor (3) respectively with data register (6), flash memory (7), ethernet transceiver (8), counter A (10) joins, and ethernet transceiver (8) is connected to local area network (LAN) netting twine (L) by isolating transformer (13) and RJ45 joint (14).
2, the local area network wireless access device based on Bluetooth technology according to claim 1 is characterized in that " TXD, RXD, RTS, CTS " end correspondence of bluetooth module (2) U12 connects " TXD, RXD, RTS, CTS " end of microprocessor (3) U1.
3, the local area network wireless access device based on Bluetooth technology according to claim 1 and 2 is characterized in that the pin " L7～L10, N7～N10, P7～P10, M7～M10 " of pin " 42～63 " difference corresponding microprocessor (3) U1 of ethernet transceiver (8) U7 joins.
4, the local area network wireless access device based on Bluetooth technology according to claim 1 and 2 is characterized in that the data terminal " D " of microprocessor (3) U1 and address end " A " join with the data terminal " D " and the address end " A " of data register (6) and flash memory (7) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02262684 CN2544472Y (en) | 2002-06-25 | 2002-06-25 | Blueteeth technology based LAN radio connection equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02262684 CN2544472Y (en) | 2002-06-25 | 2002-06-25 | Blueteeth technology based LAN radio connection equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2544472Y true CN2544472Y (en) | 2003-04-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02262684 Expired - Fee Related CN2544472Y (en) | 2002-06-25 | 2002-06-25 | Blueteeth technology based LAN radio connection equipment |
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| Country | Link |
|---|---|
| CN (1) | CN2544472Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1992427B (en) * | 2005-12-28 | 2012-04-04 | 技嘉科技股份有限公司 | Programmable antenna for controlling luminous assembly |
| CN103260218A (en) * | 2013-05-15 | 2013-08-21 | 江苏奇异点网络有限公司 | Method for mobile terminal to be connected into network |
-
2002
- 2002-06-25 CN CN 02262684 patent/CN2544472Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1992427B (en) * | 2005-12-28 | 2012-04-04 | 技嘉科技股份有限公司 | Programmable antenna for controlling luminous assembly |
| CN103260218A (en) * | 2013-05-15 | 2013-08-21 | 江苏奇异点网络有限公司 | Method for mobile terminal to be connected into network |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |