CN101237644A

CN101237644A - A GPRS/CDMA integrated mobile terminal

Info

Publication number: CN101237644A
Application number: CNA2007100930208A
Authority: CN
Inventors: 韩志钧; 刘以碧
Original assignee: CHONGQING DIMA INDUSTRY Co Ltd
Current assignee: Chongqing Dima Industry Co., Ltd.
Priority date: 2007-11-22
Filing date: 2007-11-22
Publication date: 2008-08-06
Anticipated expiration: 2027-11-22
Also published as: CN101237644B

Abstract

The invention discloses an integrated mobile terminal for a GPRS/CDMA network which comprises a GPRS module and a CDMA module. The invention is characterized in that: the GPRS module and the CDMA module are also synchronously connected with a single-chip microcomputer controller, the data between the GPRS module and the single-chip microcomputer controller as well as between the CDMA module and the single-chip microcomputer controller are bidirectionally transmitted; the single-chip microcomputer controller is used to synchronously monitor the GPRS module and the CDMA module; when the GPRS module or the CDMA module has a link request, a corresponding external interface is started to establish a channel, and the channel is released to disconnect the corresponding external interface when the communication is finished. The integrated mobile terminal for a GPRS/CDMA network can singly take advantage of a GPRS network or a CDMA network to finish voice services, data services and fax services, can also synchronously take advantage of the GPRS network or the CDMA network to finish voice services, data services and fax services, has the GPRS network and the CDMA network which are not interfered with each other, has broad application prospect, and can be widely applied in vehicle mobile office systems and desktop mobile office systems.

Description

A kind of GPRS/CDMA net integrated mobile terminal

Technical field

The present invention relates to the mobile office system technical field, be specifically related to a kind of GPRS/CDMA net integrated mobile terminal.

Background technology

CDMA is the english abbreviation (Code Division Multiple Access) of code division multiple access, and it is the branch in digital technology--a kind of brand-new and ripe wireless communication technology that grows up on the spread spectrum technic.The principle of CDMA technology is based on spread spectrum, need to be about to certain signal bandwidth information data that has of transmission, modulate much larger than the high speed pseudo noise code of signal bandwidth with a bandwidth, the bandwidth of former data-signal is expanded, again through carrier modulation and send.Receiving terminal uses identical pseudo noise code, makes relevant treatment with the bandwidth signal that receives, and the narrow band signal that broadband signal is changed into the prime information data is despreading, to realize information communication.Existing remote data transmission CDMA terminal module is primarily aimed at the application of departments such as Automation of Electric Systems, industrial monitoring, traffic administration, finance, security, utilize the cdma network platform to realize the transparent transmission of data message, the CDMA module and the 51 Single Chip Microcomputer (SCM) system MCS51 of embedded high reliability, standard serial interface and the software interface agreement of simplifying free the user from numerous and diverse cdma communication standard agreement.

GPRS is a kind of new mobile data communication business, and a kind of connection is provided between mobile subscriber and data network, provides high-speed radio IP service to the mobile subscriber.GPRS is the abbreviation of GPRS (General Packet Radio System), supports ICP/IP protocol, can with directly intercommunication of Packet Data Network (Internet etc.).The range of application of GPRS wireless transmitting system is very extensive, almost can contain the transfer of data of low professional and low rate in all, especially is fit to the low discharge data transmission service that happens suddenly.

Socket is a kind of inter-process communication mechanisms, and Socket provides between the process and communicated, interactional a kind of method, and this interprocess communication is expanded to network environment from stand-alone environment.The Socket interface is to use interface the most widely, is also referred to as socket usually.It is to issue which application program of moving on main frame that socket is used for distinguishing data actually.Because on same main frame, moving a plurality of application programs, may be all communicate at operation TCP or udp protocol, socket provides a cover to distinguish the mechanism of the data that different application transmits.Can be understood as socket and equal the Port IP address, port is one 16 a identifier, data-interface between sign transport layer protocol and the application program, it is by the Transmission Control Protocol independent allocation on the different main frames, port numbers and IP address just can indicate a port altogether uniquely in network-wide basis.

In the mobile product in the market, mainly be individual mobile terminal, i.e. mobile phone, but mobile phone can only support voice and data service, just can only support to make a phone call and business of networking, can not directly realize facsimile function.And does not have at present specially have two net GPRS network and the mutually redundant portable terminal of cdma network at vehicle-mounted portable terminal yet.

Summary of the invention

Technical problem to be solved by this invention is to provide a kind of GPRS net and CDMA net can supported simultaneously to carry out the GPRS/CDMA net integrated mobile terminal of speech business, data service and facsimile service.

According to a scheme of the present invention, a kind of GPRS/CDMA net integrated mobile terminal comprises GPRS module, CDMA module, wherein:

The GPRS module is connected with first modulator-demodulator, first data-interface, first facsimile interface, first telephony interface, SIM card mouth; First data-interface is used to connect computer; First facsimile interface is used to connect facsimile machine; First telephony interface is used to connect telephone set; One end of described first modulator-demodulator connects first antennal interface, and first antennal interface is used to connect indoor or open antenna;

The CDMA module is connected with second modem, R-UIM bayonet socket, second data-interface, second facsimile interface, second telephony interface; Described second data-interface is used to connect computer; Second facsimile interface is used to connect facsimile machine; Second telephony interface is used to connect telephone set; One end of described second modem connects second antennal interface, and second antennal interface is used to connect indoor or open antenna;

Be characterized in: described GPRS module also is connected singlechip controller simultaneously with the CDMA module, between described GPRS module and the singlechip controller and the data between CDMA module and the singlechip controller be transmitted in both directions; Described singlechip controller is used for simultaneously GPRS module and CDMA module being monitored, and starts corresponding external interface when GPRS module or CDMA module have link request, sets up channel, discharges channel and disconnect corresponding external interface when communication finishes.

Singlechip controller when externally computer carries out function of surfing the Net simultaneously, provides interface to outer computer except the effect of the operating state of finishing monitoring module, guarantee that computer carries out data, services by GPRS module or CDMA module.

According to a preferred version of GPRS/CDMA net integrated mobile terminal of the present invention, described singlechip controller comprises with lower device:

Be used to be provided with the device of SOCKET monitoring;

Be used to start the device that GPRS module and CDMA module are monitored;

Be used to judge whether the device of link request;

Be used to judge whether device into the telephone service request;

Be used to judge whether device into the facsimile service request;

Be used to judge whether device into the computer data service request;

Start the device of telephony interface when being used to receive the telephone service request;

Start the device of facsimile interface when being used to receive the facsimile service request;

The device of log-on data interface when being used to receive the computer data service request;

Be used to judge the device that telephony interface, facsimile interface, data-interface configuration be whether correct;

Be used for the device of when starting failure, reporting to the police;

Be used to the device of initiating channel request, setting up channel;

Be used to judge the device that transport service is whether successful;

Be used for the device of reporting to the police when unusual occurring when transport service;

Be used to the device of judging whether transport service finishes;

Be used to discharge the device of channel break link.

The beneficial effect of a kind of GPRS/CDMA net integrated mobile terminal of the present invention is: by the data-transformation facility of 8 chip microcontroller gprs services at a high speed, and advantage such as it is few to have a peripheral circuit, and circuit is simple, and system cost is low; Be connected with peripheral control unit by standard RS232 serial ports, but only need be according to the agreement of predesignating with regard to mutual communication, and versatility is stronger; Systems soft ware is just changed a little and can be realized on various controllers that portability is also stronger.Simultaneously in the use of reality, both can utilize GPRS net or CDMA net to finish speech business, data service and facsimile service separately, also can utilize GPRS net or CDMA net to finish speech business, data service and facsimile service simultaneously, GPRS net and CDMA net do not disturb mutually, be with a wide range of applications, can be widely used in vehicle-mounted mobile office system and the desktop mobile office system.

Description of drawings

Fig. 1 is a kind of GPRS/CDMA net integrated mobile terminal functional-block diagram of the present invention.

Fig. 2 is the computer program FB(flow block) of singlechip controller 3 of packing into.

Embodiment

Referring to Fig. 1, a kind of GPRS/CDMA net integrated mobile terminal of the present invention, by GPRS module 1, the first antennal interface 7A, the first data-interface 5A, the first facsimile interface 6A, the first telephony interface 4A, the first modulator-demodulator 8A, SIM card mouth 9, CDMA module 2, second modem 8B, R-UIM bayonet socket 10, the second antennal interface 7B, the second data-interface 5B, the second facsimile interface 6B, the second telephony interface 4B, singlechip controller 3, status indicator lamp 11, power supply 12 constitutes, wherein: the GPRS module 1 and the first data-interface 5A, the first facsimile interface 6A, the first telephony interface 4A, the first modulator-demodulator 8A, SIM card mouth 9 connects; The other end of the described first modulator-demodulator 8A connects the first antennal interface 7A, and the first antennal interface 7A connects indoor or open antenna; The first data-interface 5A connects computer by data wire; The first facsimile interface 6A connects facsimile machine; The first telephony interface 4A connects telephone set; CDMA module 2 is connected with second modem 8B, R-UIM bayonet socket 10, the second data-interface 5B, the second facsimile interface 6B, the second telephony interface 4B; The other end of described second modem 8B connects the second antennal interface 7B, and the second antennal interface 7B connects indoor or open antenna; The second data-interface 5B connects computer by data wire; The second facsimile interface 6B connects facsimile machine; The second telephony interface 4B connects telephone set; Described GPRS module 1 also is connected singlechip controller 3 simultaneously with CDMA module 2, between described GPRS module 1 and the singlechip controller 3 and the data between CDMA module 2 and the singlechip controller 3 be transmitted in both directions; Described singlechip controller 3 is used for simultaneously GPRS module 1 and CDMA module 2 being monitored, when having link request, GPRS module 1 or CDMA module 2 start corresponding external interface, set up channel, when communication finishes, discharge channel and disconnect corresponding external interface.

Wherein, described GPRS module 1,, the first modulator-demodulator 8A, second modem 8B be on the market existing, wherein GPRS module 1 can be selected GM8 62 for use, CDMA module 2 can be selected CC864 for use, and the described first antennal interface 7A, the first data-interface 5A, the first facsimile interface 6A, the first telephony interface 4A, SIM card mouth 9, R-UIM bayonet socket 10, the second antennal interface 7B, the second data-interface 5B, the second facsimile interface 6B, the second telephony interface 4B are standard interface.Described

telephony interface

4A, 4B,

facsimile interface

6A, 6B adopt the RJII port, and data-

interface

5A, 5B adopt the RS232 mouth.

Described singlechip controller 3 is made of single-chip microcomputer and standard external clock circuit, and used single-chip microcomputer can be selected for use as AT89C51, and Single Chip Microcomputer (SCM) program shown in Figure 2 is installed in single-chip microcomputer, and described single-chip microcomputer comprises

Be used to be provided with the device 100 of SOCKET monitoring;

Be used to start the device 101 that GPRS module 1 and CDMA module 2 are monitored;

Be used to judge whether the device 102 of link request;

Be used to judge whether device 103 into the telephone service request;

Be used to judge whether device 104 into the facsimile service request;

Be used to judge whether device 105 into the computer data service request;

Start the device 106 of telephony interface when being used to receive the telephone service request;

Start the device 107 of facsimile interface when being used to receive the facsimile service request;

The device 108 of log-on data interface when being used to receive the computer data service request;

Be used to judge the device 109 that telephony interface, facsimile interface, data-interface configuration be whether correct;

Be used for the device 110 of when starting failure, reporting to the police;

Be used to initiate the device 111 that channel request is set up channel;

Be used to judge the device 112 that transport service is whether successful;

Be used for the device 113 of reporting to the police when unusual occurring when transport service;

Be used to the device 114 of judging whether transport service finishes;

Be used to discharge the device 115 of channel break link.

The workflow of described Single Chip Microcomputer (SCM) program is: SOCKET monitoring 100 at first is set; Startup monitors 101 to GPRS module 1 and CDMA module 2; Judged whether link request 102; If continue monitoring when not having link request, when GPRS module 1 or CDMA module 2 have link request, judge whether to be telephone service request 103? it is facsimile service request 104? it is computer data business 105? when judgement is voice service request, and at this moment singlechip controller 3 does not monitor corresponding module and is carrying out facsimile or Computer Data Communication, and singlechip controller 3 sends instruction and starts telephony interface 106; When judgement is the facsimile service request, and at this moment singlechip controller 3 does not monitor corresponding module and is carrying out telephonic communication or Computer Data Communication, and singlechip controller 3 sends instruction and starts facsimile interface 107; When judgement is the computer data service request, and at this moment singlechip controller 3 does not monitor corresponding module and is carrying out facsimile or telephonic communication, and singlechip controller 3 sends instruction log-on data interface 108; If corresponding communication interface improperly-configured starts failure, report to the police, SOCKET monitoring 100 is set again; If start successfully, initiate channel request, set up channel 111; When transport service success 112 and finish back 114, the release channel, break link 115 restarts GPRS module 1 and CDMA module 2 is monitored 101; If transport service occurs when unusual, reporting to the police also discharges channel, and break link 115 restarts GPRS module 1 and CDMA module 2 are monitored 101.

When concrete the use, open integrated mobile terminal, if use the GPRS net, at first in SIM card mouth 9, insert SIM card, indoor or open antenna are connected to the first antennal interface 7A, a termination of telephone wire is gone into telephone set, the other end of telephone wire inserts the first telephony interface 4A, one termination of another telephone wire is gone into facsimile machine, and the other end inserts the first facsimile interface 6A; Computer is inserted the first data-interface 5A by data wire, so just can utilize the GPRS net to carry out phone, fax and Computer Data Communication; When making a phone call or receive calls, singlechip controller 3 can monitor GPRS module 1 request of carrying out telephonic communication, and at this moment singlechip controller 3 does not monitor GPRS module 1 and is carrying out facsimile or Computer Data Communication, singlechip controller 3 sends instruction and starts telephony interface, during if make a phone call or receive calls, singlechip controller 3 monitors GPRS module 1 and is carrying out facsimile or data communication, at this moment telephony interface just can not be activated, and at this moment just can not make a phone call or answer the call; After telephonic communication finished, singlechip controller 3 sent instruction and disconnects telephony interface; In like manner, when sending a fax or receive fax, singlechip controller 3 can monitor GPRS module 1 request of carrying out facsimile, and at this moment singlechip controller 3 does not monitor GPRS module 1 and is carrying out telephonic communication or data communication, singlechip controller 3 sends instruction and starts facsimile interface, if send a fax or receive when fax, singlechip controller 3 monitors GPRS module 1 and is carrying out telephonic communication or computer communication, at this moment facsimile interface just can not be activated, and at this moment just can not send a fax or receives fax; After facsimile finished, singlechip controller 3 sent instruction and disconnects facsimile interface; When need carry out the computer communication, singlechip controller 3 can monitor GPRS module 1 request of carrying out the computer communication, and at this moment singlechip controller 3 does not monitor GPRS module 1 and is carrying out telephonic communication or facsimile, singlechip controller 3 sends instruction log-on data interface, if when needing the computer communication, singlechip controller 3 monitors GPRS module 1 and is carrying out telephonic communication or fax, at this moment data just can not be activated, at this moment just can not carry out the computer communication, after the computer communication finished, singlechip controller 3 sent instruction turn-off data interface.And in said process, when data transmit to occur when unusual or start occurring can reporting to the police when unusual.If use the CDMA net, at first in R-UIM bayonet socket 9, insert the R-UIM card, indoor or open antenna are connected to the second antennal interface 7B, one termination of telephone wire is gone into telephone set, and the other end of telephone wire inserts the second telephony interface 4B, and computer is inserted the second data-interface 5B by data wire, so just can utilize the CDMA net to carry out phone and online communication, the operating state of singlechip controller 3 monitoring CDMA modules 2, operation principle is not repeated with above-mentioned.If use GPRS net and CDMA net simultaneously, singlechip controller 3 can be monitored the operating state of GPRS module 1 and CDMA module 2 simultaneously, and operation principle is the same, and GPRS net and CDMA net do not disturb mutually.

Need to prove,, finish facsimile function and just must use the GPRS net, and employed S IM card is that facsimile service just can be used in the general family of mobile global because the restriction of CDMA net at present uses the CDMA net can only finish phone and business of networking.But when the CDMA net can be realized facsimile function, also to carry out facsimile service with the CDMA net.

Claims

1, a kind of GPRS/CDMA net integrated mobile terminal comprises GPRS module (1), CDMA module (2), wherein:

GPRS module (1) is connected with first modulator-demodulator (8A), first data-interface (5A), first facsimile interface (6A), first telephony interface (4A), SIM card mouth (9); First data-interface (5A) is used to connect computer; First facsimile interface (6A) is used to connect facsimile machine; First telephony interface (4A) is used to connect telephone set; The other end of described first modulator-demodulator (8A) connects first antennal interface (7A), and first antennal interface (7A) is used to connect indoor or open antenna;

CDMA module (2) is connected with second modem (8B), R-UIM bayonet socket (10), second data-interface (5B), second facsimile interface (6B), second telephony interface (4B); Described second data-interface (5B) is used to connect computer; Second facsimile interface (6B) is used to connect facsimile machine; Second telephony interface (4B) is used to connect telephone set; The other end of described second modem (8B) connects second antennal interface (7B), and second antennal interface (7B) is used to connect indoor or open antenna;

It is characterized in that: described GPRS module (1) also is connected singlechip controller (3) simultaneously with CDMA module (2), between described GPRS module (1) and the singlechip controller (3) and the data between CDMA module (2) and the singlechip controller (3) be transmitted in both directions; Described singlechip controller (3) is used for simultaneously GPRS module (1) and CDMA module (2) being monitored, when GPRS module (1) or CDMA module (2) start corresponding external interface when link request is arranged, set up channel, when communication finishes, discharge channel and disconnect corresponding external interface.

2, GPRS/CDMA net integrated mobile terminal according to claim 1, it is characterized in that: described singlechip controller (3) comprises with lower device:

Be used to be provided with the device (100) of SOCKET monitoring;

Be used for starting the device (101) that GPRS module (1) and CDMA module (2) are monitored;

Be used to judge whether the device (102) of link request;

Be used to judge whether device (103) into the telephone service request;

Be used to judge whether device (104) into the facsimile service request;

Be used to judge whether device (105) into the computer data service request;

Start the device (106) of telephony interface when being used to receive the telephone service request;

Start the device (107) of facsimile interface when being used to receive the facsimile service request;

The device of log-on data interface (108) when being used to receive the computer data service request;

Be used to judge the device (109) that telephony interface, facsimile interface, data-interface configuration be whether correct;

Be used for the device (110) of when starting failure, reporting to the police;

Be used to initiate channel request, set up the device (111) of channel;

Be used to judge the device (112) that transport service is whether successful;

Be used for the device (113) of reporting to the police when unusual occurring when transport service;

Be used to the device (114) of judging whether transport service finishes;

Be used to discharge the device (115) of channel break link.