CN2840523Y

CN2840523Y - Multifunction communication terminal

Info

Publication number: CN2840523Y
Application number: CNU2005201065230U
Authority: CN
Inventors: 吴长松; 杨光进
Original assignee: ZHEJIANG JIATAI ELECTRICAL APPLIANCE MANUFACTURE CO Ltd
Current assignee: ZHEJIANG JIATAI ELECTRICAL APPLIANCE MANUFACTURE CO Ltd
Priority date: 2005-08-29
Filing date: 2005-08-29
Publication date: 2006-11-22
Anticipated expiration: 2015-08-29

Abstract

The utility model relates to a multifunctional communication terminal, which belongs to the field of communication, and comprises a PDA central processing unit, a telephone communication module, a display screen and an interphone module, wherein the interphone module is connected with the PDA central processing unit which is connected to the telephonic communication module, and the display screen is connected with the PDA central processing unit which controls the inter-switching of the interphone module and the telephone communication module. The utility model expands the application of the existing common wireless digital communication network, and makes up for the shortage of the PTT function of a mobile phone. In blind areas without base station signal, communication still can be carried out by an interphone and the dependence on the wireless communication network is avoided.

Description

A kind of multi-functional communications terminal

Technical field

The utility model relates to the communications field, is a kind of multi-functional communications terminal concretely.

Background technology

Now along with development of Communication Technique, the function of mobile communication terminal becomes increasingly abundant, but occasions such as out on tours, underground or meeting-place layout, signal based on communication patterns such as GSM or CDMA may not be covered by the base station, cause between several users and can't communicate by letter, and when several users distance is closer when needing mutual communication, if provide service to communicate the waste that also can cause on the communication cost by cellular carrier.In this case, the user uses intercom to communicate usually, not only convenient but also cost saving, but equally also there is inconvenience, because the user does not also know the user distance that needs are got in touch, do not know and which type of mode to communicate connection with, and mobile communication terminal is generally all carried, intercom also will account for certain space, and carrying a plurality of such mobile communication terminals simultaneously also is inconvenient for the user.

The utility model content

In order to solve the problems of the prior art, the utility model proposes a kind of multi-functional communications terminal,, promptly load the intercom module on the PDA mobile phone at the PDA intelligent mobile communication terminal, finish unified control by standard serial interface, make the PDA mobile phone have the function of intercom simultaneously.

A kind of multi-functional communications terminal comprises the PDA CPU, the telephone communication module, and display screen also comprises: the intercom module;

Described intercom module is connected with the PDA CPU;

Described telephone communication module is connected with the PDA CPU;

Described display screen is connected with the PDA CPU;

Intercom module and telephone communication module realize switching mutually under the control of PDA CPU.

Described intercom module is connected with described PDA CPU by serial line interface.

The audio frequency input and output of described intercom module are connected with the audio frequency input and output that the PDA mobile phone carries.

The signal that described telephone communication module receives passes to the PDA CPU, and central authorities handle and singlely start or close described intercom module according to a prearranged signal intensity.

Also comprise camera, described PDA CPU connects with camera, and the PDA CPU is carried out initialization to camera, and the camera collection video data also transmits signal to the PDA CPU, by these data of PDA central processing unit for processing.

Also comprise the finger scan module, described PDA CPU and finger scan module link, and the finger scan module is gathered finger print information and is sent to the PDA CPU, is shown on the display screen after treatment.

Also comprise the GPS module, described PDA CPU is connected by serial ports with the GPS module, the PDA CPU is carried out initialization to the GPS module, transmit data to the PDA CPU after the GPS module initialization, pack into electronic chart and receive the data that the GPS module transmits, display position of PDA CPU.

Described telephone communication module is meant gsm communication module or cdma communication module or meets the third generation communication module of 3G standard.

The described third generation communication module that meets 3G standard is WCDMA communication module or CDMA2000 communication module or TD-SCDMA communication module.

The beneficial effects of the utility model are, at the telecommunication network poor signal, perhaps closely need not to use and realize clearly under the situation of communication network, and intercommunication function has reduced the cost that uses a plurality of terminals easily, has saved resource, has made things convenient for the user.

Description of drawings

Fig. 1 is the utility model structural representation;

Fig. 2 a and Fig. 2 b are the headset circuit diagram of the utility model two-pin plug;

Fig. 3 connects the connector pin figure of PDA mobile phone for the utility model intercom;

Fig. 4 is the voicefrequency circuit connection layout of the utility model intercom module and PDA mobile phone;

Figure 5 shows that system circuit diagram of the present utility model.

Embodiment

Below in conjunction with description of drawings embodiment of the present utility model:

Be illustrated in figure 1 as the utility model structural representation, intercom modules such as 350M or 800M connect PDA attached to the behind of PDA mobile phone by connector, realize that serial port RS232 communication is connected with power supply, and the loudspeaker of public PDA and microphone.

Fig. 2 a and Fig. 2 b are the headset circuit diagram of the utility model two-pin plug, wherein on Fig. 2 b a button are arranged, and when intercommunication function is opened, press this button and talk to the other side, wait for the other side's speech when lifting.

Fig. 3 connects the connector pin figure of PDA mobile phone for the utility model intercom, wherein I-ESPK is the pin that is outputed to PDA by the SPK (loud speaker) of 350M intercom module, AI-ESPK is the voice signal that amplified by the PDA pin to socket, A0-ESPK is by the pin of socket to the PDA on-board speaker, CSPK is and AI-ESPK, A0-ESPK corresponding audio signal pins, I-EMIC is the Mike's pin that is outputed to 350M intercom module by the MIC on the PDA, the 0-EMIC pin is by the testing circuit of socket to the PDA plate, ETXD is RXD (input) pin that is outputed to 350M intercom module by the TXD of PDA (output) line, and ERXD is the pin that PDA receives 350M intercom module TXD output.

Fig. 4 is the circuit connection diagram of the utility model intercom module and PDA mobile phone, wherein the 0-EMIC pin of intercom module is connected in the testing circuit of PDA mobile phone, the I-EMIC pin is connected in the microphone of PDA mobile phone, the AI-ESPK pin is connected in the sound power amplifier of PDA mobile phone, A0-ESPK pin and CSPK pin are connected in speaker circuit, and the I-ESPK pin is connected in the sound power amplifier of PDA mobile phone.

Under the situation of mobile phone signal strong (such as greater than 10dB uV/mW), and intercommunication function is when opening, use be PTT (the press to talk) function that networks such as GsM or CDMA provide, carry out waiting for to making peace.

Have only when mobile phone signal bad (being lower than 10dB uV/mW such as signal value) and intercommunication function are opened, central processing unit passes through serial port, send enabled instruction to the intercom module, the intercom module is automatically started (command centre also from the PTT state exchange to the intercom state) simultaneously, automatic and command centre's (industry base station, radio repeater station etc.) sets up intercommunication and is communicated with.Enter the intercommunication stand-by state.

After mobile phone signal changeed by force, the central processing unit of PDA mobile phone sent out code by connecting the serial port of intercom module to the intercom module, finishes the work of intercom module, is automatically brought to the PTT working method that networks such as use GSM or CDMA provide.(simultaneously command centre also from the intercommunication state exchange to the PTT state).All transfer processes are communicated with intensity according to network signals such as GSM or CDMA to be finished automatically, and transfer process is to user transparent, and speech talkback does not interrupt.

A kind of multi-functional communications terminal among the embodiment based on the electronic chart of GPS global positioning system, comprising: CPU, GPS module, gsm module; Described CPU connects with the GPS module, and CPU is carried out initialization to the GPS module, transmits data to CPU after the GPS module initialization, pack into electronic chart and receive the data that the GPS module transmits, display position of CPU; CPU connects with gsm module, and gsm module is carried out initialization, transmits data to CPU after the gsm module initialization; At display screen display simulation keyboard, with simulating keyboard dial-up cordless communication network; Show incoming information and simulating keyboard, select to connect cordless communication network with simulating keyboard.Described communication terminal also can show the short message of receiving; Adopt writing pen input short message when sending short message; Can surf the Net and sending and receiving Email and data download, can point out with incoming ring tone when sending a fax, showing incoming information and simulating keyboard.Described CPU connects with the GPS module to can be by serial ports and connects with the GPS module, and serial ports is carried out initialization.Described CPU connects with the GPS module to can be by serial ports and connects with the GPS module, and serial ports is carried out initialization.Described CPU brain connects with gsm module and can connect with gsm module by serial ports, and serial ports is carried out initialization.

Be illustrated in figure 5 as system circuit diagram of the present utility model, the GPS module of this terminal is connected on the serial ports 1 by the pin of CPU, the CDMA module is connected on the serial ports 2, bluetooth module is connected on the serial ports 3, and camera module is connected on the utilizing camera interface, and the intercom module is connected on the serial ports 4, realize connecting of a plurality of additional function modules and CPU, finish on a small communication terminal and realize intercom, GPS, work such as information stores.

These the beneficial effects of the utility model are, have expanded the application of existing public number cordless communication network, have remedied the deficiency of mobile phone PTT function.In the blind area that does not have base station signal, still can communicate by intercom, avoided dependence to cordless communication network.

Above embodiment only is used to illustrate the utility model, but not is used to limit the utility model.

Claims

1. a multi-functional communications terminal comprises the PDA CPU, the telephone communication module, and display screen is characterized in that also comprising: the intercom module;

Described intercom module is connected with the PDA CPU;

Described telephone communication module is connected with the PDA CPU;

Described display screen is connected with the PDA CPU;

2. a kind of multi-functional communications terminal according to claim 1 is characterized in that, described intercom module is connected with described PDA CPU by serial line interface.

3. a kind of multi-functional communications terminal according to claim 1 is characterized in that, the audio frequency input and output of described intercom module are connected with the audio frequency input and output that the PDA mobile phone carries.

4. a kind of multi-functional communications terminal according to claim 1 is characterized in that, the signal that described telephone communication module receives passes to the PDA CPU, and central authorities handle and singlely start or close described intercom module according to a prearranged signal intensity.

5. a kind of multi-functional communications terminal according to claim 1, it is characterized in that also comprising camera, described PDA CPU connects with camera, the PDA CPU is carried out initialization to camera, the camera collection video data also transmits signal to the PDA CPU, by these data of PDA central processing unit for processing.

6. a kind of multi-functional communications terminal according to claim 1, it is characterized in that also comprising the finger scan module, described PDA CPU and finger scan module link, the finger scan module is gathered finger print information and is sent to the PDA CPU, is shown on the display screen after treatment.

7. a kind of multi-functional communications terminal according to claim 1, it is characterized in that also comprising the GPS module, described PDA CPU is connected by serial ports with the GPS module, the PDA CPU is carried out initialization to the GPS module, transmit data to the PDA CPU after the GPS module initialization, pack into electronic chart and receive the data that the GPS module transmits, display position of PDA CPU.

8. a kind of multi-functional communications terminal according to claim 1 is characterized in that, described telephone communication module is meant gsm communication module or cdma communication module or meets the third generation communication module of 3G standard.

9. a kind of multi-functional communications terminal according to claim 8 is characterized in that, the described third generation communication module that meets 3G standard is WCDMA communication module or CDMA2000 communication module or TD-SCDMA communication module.