CN201585142U

CN201585142U - Wireless access terminal

Info

Publication number: CN201585142U
Application number: CN2009202378620U
Authority: CN
Inventors: 唐明勇; 王声平
Original assignee: DESAI ELECTRONIC (HUIZHOU) Ltd
Current assignee: DESAI ELECTRONIC (HUIZHOU) Ltd
Priority date: 2009-10-27
Filing date: 2009-10-27
Publication date: 2010-09-15
Anticipated expiration: 2019-10-27

Abstract

The utility model discloses a wireless access terminal which comprises a power supply module, an LCD display module, a user identity recognition module, a radio frequency module, an antenna module, a DTMF information processing module and a user interface module, wherein the radio frequency module is respectively connected with the power supply module, the LCD display module, the DTMF information processing module, the user interface module, a USB interface module, the user identity recognition module and the antenna module, the power supply module is further connected with the LCD display module, and the user interface module is externally connected with an ordinary fixed telephone. The wireless access terminal has the advantages of high practical value, low cost, convenient installation and use and the like, the telephone is accessed into a wireless communication network through an ordinary telecommunication fixed network for realizing the wireless communication, and the wireless access terminal can be simultaneously accessed into a plurality of fixed telephone terminals.

Description

A kind of wireless access terminal

Technical field

The utility model relates to a kind of wireless communication terminal, relates in particular to a kind of wireless access terminal that is used for normal telephone machine access to wireless communication net.

Background technology

Current, because the coverage of radio communication is increasing, communication quality is become better and better, in view of advantages such as convenient, fast, reliable, the feature richness of radio communication, based on the fixed wireless telephone of wireless communication networks (as GSM, CDMA etc.) gradually widespread usage to various occasions, but consider that from the aspect that effectively utilizes of purchasing machine cost and existing fixed line there is following problem in fixed wireless telephone:

At first, the fixed wireless telephone cost is higher than normal telephone machine (as the normal telephone machine of China Telecom), arranges that at needs this price difference is particularly evident under the situation of many telephone sets.

Secondly,,, not only cause idle, the waste of original phone, also increase user self financial burden if purchase fixed wireless telephone again because the normal telephone machine spreads to huge numbers of families already.

Along with mobile operator in the adjustment aspect the rate, the mobile communication expense just progressively is reduced to general receptive phase, has promoted mobile communication to be applied in the daily life more on a large scale.

In view of the foregoing, a kind ofly the middle access device of normal telephone machine access to wireless communication network certainly will be able to be become the market demand.

The utility model content

The purpose of this utility model is to overcome the shortcoming of above-mentioned prior art with not enough, a kind of wireless access terminal that is used for normal telephone machine access to wireless communication net is provided, this terminal is convenient and practical, cost is low, and operates simple and easyly, has realized the function the same with fixed wireless telephone.

The purpose of this utility model is achieved through the following technical solutions: a kind of wireless access terminal comprises:

Be used to provide the power module of power supply;

Be used to show incoming information, and the LCD display module of other human-machine operation;

Be used to store the user identification module (as SIM card, User IdentityModel card) of subscriber identity information;

Be used to handle and come/go electrical information, drive LCD display module, realization and the mutual radio-frequency module of external terminal data;

Being used for signal receives and the Anneta module of launching;

Be used to realize the DTMF message processing module of DTMF (dual-tone multifrequency) information encoding-decoding;

Be used to realize the Subscriber Interface Module SIM of functions such as feed, ring, dislodging machine testing, digital-to-analogue conversion and 2/4 line conversion;

Described radio-frequency module links to each other with Anneta module with power module, LCD display module, DTMF message processing module, Subscriber Interface Module SIM, usb interface module, user identification module respectively, described power module also links to each other with the LCD display module, the external normal telephone machine of described Subscriber Interface Module SIM.

Described Subscriber Interface Module SIM is provided with RJ-11, and described RJ-11 can direct external normal telephone machine; Or, realize the expansion of telephone network by the logical fixed telephone of the many Daeporis of stored-program control exchange (PABX) access.Described Subscriber Interface Module SIM directly carries out constant-current feeding for external normal telephone machine, by detecting the dislodging machine state of external normal telephone machine, realizes the reception and the transmission of Dual Tone Multifrequency information, voice messaging.

Described power module is built-in with rechargeable battery.

Described DTMF message processing module comprises dtmf code circuit and DTMF decoding circuit, with the decoding of realization dialing information and the encoding function of incoming information.

This wireless access terminal can also be provided with: by linking to each other with computer, be used to realize the usb interface module of online computing function, described usb interface module links to each other with radio-frequency module.

Described Anneta module adopts the external double frequency omnibearing antenna of impedance 50omh, gain 2dBi, and antennal interface adopts sub-miniature A connector (Sub-Miniature-A antennal interface).

This wireless access terminal can be the wireless access terminal of various standards such as GSM, CDMA, TD-SCDMA, WSDMA or SDMA2000.

The utility model compared with prior art has following advantage and beneficial effect:

The utlity model has that volume is little, cost is low, carry easy for installation, easy-to-use advantage, can realize normal telephone machine access to wireless communication network is used; By stored-program control exchange, can insert the logical fixed telephone of many Daeporis simultaneously, realize phone networking function in the zone; Simultaneously, can connect computer, realize the online computing function by usb interface module.The utility model effectively utilizes the normal telephone machine and realizes radio communication function, and cost is low, and networking flexibility can be widely applied in the telephone network of various collectives structure.

Description of drawings

Fig. 1 is the structural representation of a kind of wireless access terminal of the utility model.

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 thereto.

Embodiment

A kind of wireless access terminal as shown in Figure 1, comprising:

Be used to provide the power module of power supply;

Being used for signal receives and the Anneta module of launching;

Be used to realize the Subscriber Interface Module SIM of functions such as feed, ring, dislodging machine testing, digital-to-analogue conversion, 2/4 line conversion;

Described power module is built-in with rechargeable battery.

Described Anneta module adopts the external double frequency omnibearing antenna of impedance 50omh, gain 2dBi, and antennal interface adopts sub-miniature A connector.

The concrete course of work of the present utility model is as follows:

Power module external power supply of the present utility model, and after carrying out voltage matches, give radio-frequency module, the power supply of LCD display module respectively.Under the situation that no dispatch from foreign news agency inserts, can power by built-in rechargeable battery.

After the utility model inserts effective SIM card, but just access to wireless communication net.The RJ-11 built-in by Subscriber Interface Module SIM connects stored-program control exchange, the normal telephone machine linked to each other with stored-program control exchange again, thereby realize every wireless communication operation function on the normal telephone machine.

In normal telephone machine when dialing,, DTMF information is sent to the DTMF message processing module through Subscriber Interface Module SIM and decodes, and decoded information is delivered to radio-frequency module and again by Anneta module access to wireless communication network.

Send under the speech phase, the extension set voice messaging inserts Subscriber Line Interface Circuit through stored-program control exchange to carry out delivering to radio-frequency module after conversion of 2/4 line and the digital-to-analogue conversion processing, and the voice signal after the inner amplification of radio-frequency module, speech coding and modulation is sent to Anneta module and launches.

Be subjected under the speech phase, the wireless communication signal that receives by Anneta module, send into that radio-frequency module amplifies, filtering, in put, tone decoding and digital-to-analogue conversion, output to Subscriber Interface Module SIM from radio-frequency module, finally reach the normal telephone machine through stored-program control exchange.

Be subjected to incoming information under the speech phase to be sent to the DTMF message processing module through radio-frequency module and carry out DTMF information and encode, the DTMF information behind the coding is delivered on the normal telephone machine terminal through Subscriber Interface Module SIM, stored-program control exchange successively and is shown.

By usb interface module of the present utility model is linked to each other with computer, can realize the function of surfing the Net of computer, at this moment, this wireless access terminal is equivalent to wireless modem.

The foregoing description is the utility model preferred implementation; but execution mode of the present utility model is not limited by the examples; other any do not deviate from change, the modification done under spirit of the present utility model and the principle, substitutes, combination, simplify; all should be the substitute mode of equivalence, be included within the protection range of the present utility model.

Claims

1. a wireless access terminal is characterized in that, comprising:

Be used to provide the power module of power supply;

Be used to store the user identification module of subscriber identity information;

Being used for signal receives and the Anneta module of launching;

Be used to realize the DTMF message processing module of DTMF information encoding-decoding;

Be used to realize the Subscriber Interface Module SIM of feed, ring, dislodging machine testing, digital-to-analogue conversion and the conversion of 2/4 line;

2. a kind of wireless access terminal according to claim 1 is characterized in that: described Subscriber Interface Module SIM is provided with RJ-11, the direct external normal telephone machine of described RJ-11, or insert the logical fixed telephone of many Daeporis by stored-program control exchange.

3. a kind of wireless access terminal according to claim 1 and 2 is characterized in that: described power module is built-in with rechargeable battery.

4. a kind of wireless access terminal according to claim 3 is characterized in that: described DTMF message processing module comprises dtmf code circuit and DTMF decoding circuit.

5. a kind of wireless access terminal according to claim 1 is characterized in that: described DTMF message processing module comprises dtmf code circuit and DTMF decoding circuit.

6. according to claim 1,4 or 5 described a kind of wireless access terminals, it is characterized in that: this wireless access terminal also is provided with: by linking to each other with computer, be used to realize the usb interface module of online computing function, described usb interface module links to each other with radio-frequency module.

7. a kind of wireless access terminal according to claim 6 is characterized in that: this wireless access terminal is the wireless access terminal of GSM, CDMA, TD-SCDMA, WSDMA or SDMA2000 standard.

8. a kind of wireless access terminal according to claim 6 is characterized in that: described Anneta module adopts the external double frequency omnibearing antenna of impedance 50omh, gain 2dBi, and antennal interface adopts sub-miniature A connector.