CN201682625U

CN201682625U - GSM/PSTN dual-mode communication terminal for supporting traditional PSTN phone access

Info

Publication number: CN201682625U
Application number: CN201020174958XU
Authority: CN
Inventors: 袁勇; 张泰�
Original assignee: WUHAN HUAKE YINGLI TECHNOLOGY Co Ltd
Current assignee: WUHAN HUAKE YINGLI TECHNOLOGY Co Ltd
Priority date: 2010-04-29
Filing date: 2010-04-29
Publication date: 2010-12-22
Anticipated expiration: 2020-04-29

Abstract

The utility model provides a GSM/PSTN dual-mode communication terminal for supporting traditional PSTN phone access, comprising a GSM wireless communication module, a display, a PSTN fixed-phone module, an SLIC phone access circuit and a voice channel switching circuit, wherein the GSM wireless communication module is connected with an antenna and an SIM card which are needed in interaction with a GSM wireless network; the display is used for displaying relevant information output by the GSM wireless communication module or the PSTN fixed-phone module; the GSM wireless communication module and the PSTN fixed-phone module are respectively switched by the voice channel switching circuit and are in voice interaction with a user by the combination a loudspeaker and a microphone; a memory and a CPU are arranged in the GSM wireless communication module; and the memory stores related software processed by data. The GSM/PSTN dual-mode communication terminal can uses the traditional PSTN phone to access a GSM/PSTN dual-mode fixed platform and largely reduces the structural complexity and cost of the common dual-mode fixed platform.

Description

Support the double mode communicating terminal of GSM/PSTN that the traditional PSTN phone inserts

Technical field

The utility model relates to the double mode communicating terminal of a kind of GSM/PSTN, relates in particular to a kind of double mode communicating terminal of GSM/PSTN of supporting that the traditional PSTN phone inserts.

Background technology

Present communicating terminal series products function singleness, one supports single wireless or cable network, the unicity that will inevitably cause application scenarios like this, for example the cell phone type product all can't be conversed under the situation of extreme terrain and signal difference, and the PSTN phone also is to call not having under the situation of cable network.Support PSTN and GSM/CDMA to insert simultaneously even Terminal Type is merged in some domestic communication, one also is single exporting with wireless or PSTN.For consumers, can't adjust, the adjustment of network selecting is poor.And not enough to domestic consumer's support owing to adopt the conventional separators part, can take bigger space, lost wireless telecommunications original portable advantage.And do not support to insert from traditional PSTN fixed line, do not meet habits of consumers on the one hand, can not make full use of the characteristics of original fixed line on the other hand.

Therefore, be necessary to design the double mode communicating terminal of GSM/PSTN that a kind of support traditional PSTN phone that can overcome above-mentioned shortcoming inserts, to satisfy the needs of different user.

Summary of the invention

Technical problem to be solved in the utility model is: the double mode communicating terminal of GSM/PSTN that provides a kind of support traditional PSTN phone that can solve different demands to insert.

The technical scheme that the utility model adopted is: a kind of double mode communicating terminal of GSM/PSTN of supporting that the traditional PSTN phone inserts, it is characterized in that, comprise: gsm wireless communication module, display, PSTN fixed line module, SLIC phone place in circuit, voice channel commutation circuit; Wherein the gsm wireless communication module is connected with and the necessary antenna of gsm wireless network interaction, SIM card; Described display is used to show the relevant information of gsm wireless communication module or the output of PSTN fixed line module; Described gsm wireless communication module and PSTN fixed line module be the switching by the voice channel commutation circuit respectively, carries out interactive voice via loud speaker and microphone combination and user; Described gsm wireless communication module is built-in with memory and CPU, and described memory stores has the related software of data processing, and the user can communicate according to the gsm wireless network or the PSTN fixed-line phone network of user software self-configuring by using this double mode communicating terminal.

The beneficial effects of the utility model are: can use the traditional PSTN phone to insert GSM/PSTN bimodulus fixed station, greatly reduce the structure complexity and the cost of common bimodulus fixed station, not need unnecessary keyboard and display module.

Description of drawings

Fig. 1 is a general frame structural representation of the present utility model.

Fig. 2 is SLIC chip external circuits figure of the present utility model.

Fig. 3 is an outside connection diagram of the present utility model.

Embodiment

Below in conjunction with drawings and Examples the utility model is described in further detail.

The technical scheme that its technical problem that solves the utility model adopts is: by the double mode amalgamation communicating terminal of GSM/PSTN of traditional PSTN phone access, make full use of keyboard and display module on the black phone, reach access and exhalation to GSM and pstn telephone communication, wherein:

The hardware core part:

1.GPRS " LoCosto " scheme is the first generation single-chip platform scheme that TI releases towards ultralow valency mobile phone (ULC) market.This scheme is orientated the GPRS that has the simple multimedia function as and is moved Terminal Type, supports data application such as WAP/MMS, supports form music such as MP3, supports storage expansion and usb data to exchange, and supports bluetooth connection etc.GPRS " LoCosto " Center for architecture chip has two: TSC2310 (BB+RF) and TWL3029 (PMU).TSC2310 adopts ARM7 ^TMRISC and TMS320C54xTM DSP double-core framework, operating frequency is 104MHz; DRP technology based on the advanced person is integrated into chip with digital RF, has realized single chip solution.

2.SLIC chip, Subscriber Line Interface Circuit, Subscriber Line Interface Circuit.The provide support analog interface of phone of SLIC chip is generally RJ11, can the direct connection telephone machine.

3. power management and charge management module.

4. peripheral interface circuit comprises AUDIO, POWER, USB.

5.LCD display module.

The software kernels part:

1.OS adopt the nucleus system, this system is the operating system of increasing income, and fully accomplishes system protocol and optimization in Properties, accomplishes must support protocol module on the operating system aspect, reaches optimization user's response the most fast.

2. application program partly need be carried out MMI (man machine interface) design, and protocol layer then adopts TI to get protocol stack.MMI layer bag expands the gui menu design, the design of SLIC functional interface, charge management module design, key modules such as basic call function design.Accomplish the modular design of customizable, each module is carried out minimum that coupling designs.Utilize the customization of software, can make full use of the service of the flexibility customized user of software.

Concrete index is as follows:

1. hardware index

2. software index

In Fig. 1, direct TIP/RING two lines of traditional pstn telephone machine phone are directly into the SLIC chip, after keyboard that sends by SLIC chip dialogue machine and speech data are handled, import in the master chip MCU controller in the TI LoCosto scheme by pcm bus and to handle.For input signal, importing into by handling in master chip MCU controller by the I2C bus transfer after the processing of TSC2310 chip of GSM signal come signal as for PSTN then to have after the landline telephone resume module selector switch by audio frequency be directly inputted on the audio loop and handled.

Shown in Figure 2 is the access peripheral circuit diagram of SLIC chip, peripheral circuit is by the input of TIP/RING two lines, the SLIC chip detects different signals by the change in voltage of perception two lines, comprise bell signal, DTMF/FSK caller identification signal, polarity reversing signal, by to the identification of dtmf signal with regard to passable key assignments to phone output, thereby realize key assignments is transferred to the function of master control chip.

At first this bimodulus fixed station is connected antenna in the embodiment shown in fig. 3, then two phones are inserted two different phone interfaces of this bimodulus fixed station device respectively by connecting line, output connects the pstn telephone input interface, and use common charger to connect the 220V electric main, about 15-45 second (the wireless network signal situation according to the locality is different to the SIM card hour of log-on) after powering on, the machine that two Daeporis are logical all can be received and give me a little and call out.Connection diagram can be referring to Fig. 3.

The beneficial effects of the utility model are, can use the traditional PSTN phone to insert GSM/PSTN bimodulus fixed station, greatly reduce structure complexity and the cost of common bimodulus fixed station, do not need unnecessary keyboard and display module.

Claims

1. the double mode communicating terminal of GSM/PSTN of supporting that the traditional PSTN phone inserts is characterized in that, comprising: gsm wireless communication module, display, PSTN fixed line module, SLIC phone place in circuit, voice channel commutation circuit; Wherein the gsm wireless communication module is connected with and the necessary antenna of gsm wireless network interaction, SIM card; Described display is used to show the relevant information of gsm wireless communication module or the output of PSTN fixed line module; Described gsm wireless communication module and PSTN fixed line module be the switching by the voice channel commutation circuit respectively, carries out interactive voice via loud speaker and microphone combination and user; Described gsm wireless communication module is built-in with memory and CPU, and described memory stores has the related software of data processing, and the user can communicate according to the gsm wireless network or the PSTN fixed-line phone network of user software self-configuring by using this double mode communicating terminal.