CN2459824Y

CN2459824Y - Mobile communication based user insertion device

Info

Publication number: CN2459824Y
Application number: CN 01205090
Authority: CN
Inventors: 吴江兴; 林晓斌; 石江宏
Original assignee: Qingnian Network Communication Co Ltd Xiamen
Priority date: 2001-01-22
Filing date: 2001-01-22
Publication date: 2001-11-14
Anticipated expiration: 2011-01-22

Abstract

The utility model relates to a user insertion device based on the mobile communication, which comprises an antenna, a GSM communication module, a central processing control unit and an internal power supply circuit. By the connection of An SIM module in the GSM communication module to the GSM mobile telephone network, the connection of an ordinary telephone to a 900 MHz / 1800MHz GSM mobile telephone network for communication can be implemented. The utility model not only can provide a standard telephone line interface and ringing current signal for the ordinary telephone, but also can provide off-hook antipole signal for a fare register, and can be used in rural areas, automobiles, trains, ships, etc.

Description

A kind of user access device based on mobile communication

The utility model relates to a kind of user access device based on mobile communication, particularly a kind of plain old telephone is connected to the converting apparatus that the 900MHZ/1800MHZ GSM mobile phone network is conversed.

Current, ordinary telephone set must insert telephone loop when using, and in the area of not laying telephone loop, only uses mobile phone, uses but only limit to the individual, can't realize the IC-card paying, uses as the public affairs words.

A kind of user access device based on mobile communication that the utility model provides not only can provide standard words line interface and ringing signal to use for common phone, also can provide the off-hook anti-polar signal to use for the taximeter and the public words of inserting coins.

The utility model can be realized like this, comprises antenna, gsm communication module, central processing control unit and interior power supply circuit, and wherein antenna receives and launches the signal of communicating by letter; Insert GSM mobile phone network by the sim module in the gsm communication module, set up talking link by speech path wherein; Central control unit is connected with the functional circuit of gsm communication module and other, and interior power supply circuit is given each power supply.

The utility model also can increase communication interface and carry out the TTL/RS232 two-way level converting through the CPU in level conversion IC and the central processing control unit in the gsm communication module, speech path can be supported subject for ridicule in addition; Central control unit can peg graft the IC-card reader device, be connected with keyboard by keyboard interface, simultaneously CPU also is connected with the E of storage data ²Prom memory and display.

The utility model is all right: GSM communication module CPU direct and in the central control unit is connected; Increase by an analog switch user plate interface circuit, comprise ringing current generator and one or more standard words line interface, receive the analog signal that external ordinary telephone set produces and carry out the conversion of 2/4 line through the user interface converting unit, the signal of reading the input of ordinary telephone set keyboard by DTMF identification IC gives central control unit in order to send control command simultaneously.

After adopting said structure, plain old telephone can be connected to the 900MHZ/1800MHZGSM mobile telephone network converses, can be widely used in occasions such as rural area, automobile, train, steamer, and plain old telephone can be gone electric long distance bypass to give other operators, the utility model not only can provide standard words line interface and ringing signal to use for ordinary telephone set, also can provide the off-hook anti-polar signal to use for taximeter.

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

Fig. 1 is the block diagram of the utility model one embodiment;

Fig. 2 is the circuit diagram of the utility model one embodiment;

Fig. 3 is the block diagram of another embodiment of the utility model;

Fig. 4 is the partial circuit figure () of another embodiment of the utility model;

Fig. 5 is the partial circuit figure (two) of another embodiment of the utility model.

As shown in Figure 1, 2, the utility model mobile public telephone 1 comprises antenna 2, gsm communication module 3, central processing control unit 4, IC-card reader device 5, display 6, keyboard 7 and interior power supply circuit 8.

Wherein antenna 2 receives and launches the signal of communicating by letter;

Gsm communication module 3 comprises two SIM supportive devices 31, communication interface circuit 32 and speech path 33, mobile public telephone 1 inserts the 900MHZ/1800MHZ GSM mobile phone network by two SIM supportive devices 31 wherein, communication interface circuit 32 carries out TTL/RS232 two-way level converting (the CPU model is PIC16C65) by communication interface 321 wherein through the CPU41 in level conversion IC322 and the central processing control unit 4, and speech path 33 can be supported subject for ridicule in addition;

CPU41 in the central control unit 4 is connected with keyboard 7 by keyboard interface 43, and CPU41 also is connected with the E of storage data simultaneously ² Prom memory 42 and display 6;

IC-card reader device 5 (not showing among Fig. 2) is connected with CPU41 in the central control unit 4 by the IC-card interface;

Interior power supply circuit 8 is given each power supply.

User's off-hook, start whole inside processing behind the plug-in card, behind the access of the double SIM card on the gsm communication module 3 900MHZ/1800MHZ GSM mobile phone network, send out note a to back-stage management server at center and check whether this card is effective, and return central authority; CPU41 order buffered keyboard 7 in the central control unit 4, send display message, allow subscriber dialing, set up talking link via speech path 33, and begin telephoometry, show clocking information by CPU41, otherwise, withdraw from subscriber card, all circuit are closed in central control unit 4 orders, are in wait state; User's on-hook, central control unit 4 sends the order of cancelling talking link to gsm communication module 3 after detecting this state, finish a communication process, the user can continue to dial next phone, or card taking, if after user's card taking, central control unit 4 cuts out all circuit with order, is in wait state.

As shown in Figure 3, another embodiment of the present utility model is a user access device 1 ＇, can insert the 900MHZ/1800MHZ GSM mobile phone network by double SIM card on its GSM communication module 3 ＇ and antenna 2 ＇, the utility model comprises an analog switch user plate interface circuit 9, provide standard words line interface and ringing signal to use for external one or more ordinary telephone set 10, the analog signal that receives 10 generations of external ordinary telephone set is simultaneously carried out the conversion of 2/4 line through user interface converting unit 11, the signal of reading the input of ordinary telephone set 10 keyboards by DTMF identification IC12 gives central control unit 4 ＇ in order to send control command simultaneously, and interior power supply circuit 8 ＇ give each power supply.

During caller, user's off-hook, shown in Fig. 4,5, HOOK-1,2 provides off hook signal, CPU41 ＇ among central control unit 4 ＇ starts, DTMF identification IC12 receives the number of ordinary telephone set 10 keyboards input, is organized into the AT order of GSM communication module 3 ＇, sets up with the GSM base station and gets in touch, if success, carry out the conversion of 2/4 line through user interface converting unit 11, set up talking link, wait for on-hook; User's on-hook, central control unit 4 ＇ send the order of cancelling talking link to gsm communication module 3 ＇ after detecting this state, finish a communication process, and the user can continue to pull out next phone, or finishes conversation; Otherwise, provide failure signal.

When called, there is a CALL GSM base station, GSM communication module 3 ＇ are activated, CPU41 ＇ among central control unit 4 ＇ starts, and sends bell signal by ringing current generator 13 to the user, waits for off-hook, if success, carry out the conversion of 2/4 line through user interface converting unit 11, set up talking link, wait for on-hook; User's on-hook, central control unit 4 ＇ send the order of cancelling talking link to gsm communication module 3 ＇ after detecting this state, finish a communication process; If failure is counted 16, finish ring.

Claims

1, a kind of user access device based on mobile communication is characterized in that: comprise antenna, gsm communication module, central processing control unit and interior power supply circuit, wherein antenna receives and launches the signal of communicating by letter; Insert GSM mobile phone network by the sim module in the gsm communication module, set up talking link by speech path wherein; Central control unit is connected with functional circuit of gsm communication module and other and device, and interior power supply circuit is given each power supply.

2, a kind of user access device according to claim 1 based on mobile communication, it is characterized in that: increase communication interface and carry out the TTL/RS232 two-way level converting through the CPU in level conversion IC and the central processing control unit in the gsm communication module, speech path can be supported subject for ridicule in addition; Central control unit can peg graft the IC-card reader device, be connected with keyboard by keyboard interface, simultaneously CPU also is connected with the E of storage data ²Prom memory and display.

3, a kind of user access device based on mobile communication according to claim 1 is characterized in that: GSM communication module CPU direct and in the central control unit is connected; Increase by an analog switch user plate interface circuit, comprise ringing current generator and one or more standard words line interface, receive the analog signal that external ordinary telephone set produces and carry out the conversion of 2/4 line through the user interface converting unit, the signal of reading the input of ordinary telephone set keyboard by DTMF identification IC gives central control unit in order to send control command simultaneously.