CN1437372A - Public radio phone set with SIM card used and its usage - Google Patents

Abstract

A radio public telephone which is able to use SIM card includes an telephone body for receiving and transmitting voice signal in order to make both User a communication in voice, a power input part consisting of AC power plug and power line to be connected with the telephone body for power supply and an antenna as interface of receiving-transmitting for radio wave to be set at the top of telephone body for carrying on signal receiving-transmitting with base station. It works as using internal SIM card to dial IP special network telephone by utilizing the existing radio public network structure with built-in SIM card mode or with built-in plus external insertion card to dial telephone directly with different unit entrance number by external insertion card in addition to dial IP special network telephone with internal SIM card.

Description

Public radio phone set with SIM card used and its usage

Technical field

The present invention is a kind of public radio phone set with SIM card used and its usage, particularly can use the mobile phone SIM card on the free wireless public network about a kind of, in the built-in or built-in mode that adds outer plug-in card, reaches communication on wireless public telephone.

Background technology

Existing public telephone system as shown in Figure 1, is to be finished onlinely by individual other telephone line 2a and switch 3a (as the switch device of telecommunication bureau) by a plurality of public telephone 1a, and every telephone line 2a all specifies a public telephone 1a.This public telephone 1a is from early stage coin-feed, be developed to general card insert type at present, the user just must not carry a lot of coins again, only need buy prepaid IC phonecard 4a will insert the use of can dialling behind the jack 11a, and can give timing when connecting and deduct the interior charge unit of this IC phonecard 4a, so,, quite convenient as long as one card in hand can use at any time.

But, the shortcoming of Magnetic Card Telephone 1a is: in case promptly can't use after the charge unit of IC phonecard 4a has been deducted, and can not replenish Stored Value again, therefore need to buy toward the shop newer IC phonecard 4a, in addition, when the user leaves behind IC phonecard 4a temporarily and can not find the shop that sells IC phonecard 4a again, also can only be deeply aware of one's own helplessness when faced with a great task even see Magnetic Card Telephone 1a.

Moreover along with the development of mobile communication, mobile phone 5a (as shown in Figure 2) has become the popular product of popularizing so far, because its volume is more and more little, carries and operate all very convenient, and communication quality is good, therefore staff one machine almost.Mobile phone 5a is that the SIM card 6a that plants by inside cooperates the running of hardware circuit to reach the function of wireless transmission communication, when connecting, can be chargeed and be recorded on user's the telecommunications bill, therefore, just do not have the problem that card lost efficacy as long as pay the fees on time.

In addition, stolen in order to prevent mobile phone 5a, every SIM card 6a can be provided with password and come this SIM card 6a is locked, and has only when the user inputs correct password, and this action phone 5a just can enter normal operating condition, and after 3 mistakes of continuous input, can immediately this SIM card 6a be pinned, must use PUK just password can be dismembered, therefore, have safe and secret effect, and this SIM card 6a inside also can be used to registered user's significant data and information.

But; this SIM card 6a generally only limits to mobile phone 5a and uses; aquatic foods are applied on other communicator less; quite unfortunate; and also not seeing on the market has the purposes of this SIM card 6a on this public telephone 1a of planting to reach the correspondent, therefore, through regular meeting's nidus in the open air but mobile phone 5a when not having electricity; even near be provided with public telephone 1a, can only sigh with feeling that also the situation that SIM card 6a has no the ample scope for abilities takes place.

The person of advancing, continue to discuss the purposes of existing public telephone 1a, the server that IP dedicated network phone is provided is also arranged, only can handle this function to the credit card dealer earlier in Taiwan at present, place public telephone 1a without plug-in card in use, need only import the fast dial-up of appointment, input card number and password again after waiting to enter system, treat to import again when correct Subscriber Number can with talked about square tube and talked about.

In addition, in some country then is directly to buy IP phonecard to the IP network dealer, in use without plug-in card, need only import the fast dial-up of appointment at the telephone network (as GSM common network, wired telephone network etc.) of appointment, input card number and password again after waiting to enter system, if import again when correct Subscriber Number can with talked about square tube and talked about.

But aforementioned CSM common network company, wired telephone network do not provide the SIM card function of user own on public telephone and set up IP speed and dial key, for the convenient use of user.

Summary of the invention

Therefore, the present invention proposes a kind of reasonable in design and effectively improve the present invention of above-mentioned shortcoming, enable to provide one to have the built-in or built-in outer plug sim card that adds, with the public telephone that can dial into service such as IP dedicated network via built-in SIM card, by wireless communication module transmission, built to solve existing telephone line and the switch of adopting that the public telephone system one of putting was both consuming time, cost is high and keep in repair many shortcomings such as difficult.

Main purpose of the present invention promptly provides a kind of public radio phone set with SIM card used and its usage, can adopt built-in SIM card mode, by existing wireless public network framework, uses inner SIM card to make a call the IP dedicated network.

Another object of the present invention promptly provides a kind of public radio phone set with SIM card used and its usage, can adopt the built-in outer plug sim card mode that adds, except that can using inner SIM card to make a call the IP dedicated network, and can use the SIM card of various different telecommunications doors number directly to call by the outer plug-in card mode.

Of the present invention time a purpose promptly provides a kind of free wireless public, telephone device and using method thereof of using SIM card, and the function and the authentication that can provide network company to monitor each public telephone board behaviour in service are convenient.

A further object of the present invention promptly provides a kind of public radio phone set with SIM card used and its usage, can form wireless multimedia messages station by high-speed transfer speed.

In order to reach above-mentioned purpose, the present invention is providing a kind of public radio phone set with SIM card used, be to comprise a phone body, a power input part and an antenna, wherein, the phone body is in order to be responsible for reception and voice signal, and this power input part is connected in this phone body, in order to be responsible for providing this phone body needed supply of electric power itself, this is wireless is located on this phone body, in order to be responsible for carrying out the reception or the transmission of signal with base station.

The present invention also provides a kind of using method of public radio phone set with SIM card used, at first, electric power starting, executive circuit state and internal storage initial value design, gsm system initial value design program, executive circuit situation DP display processor, calculating punch plug-in card audit program and carry out card taking determining program etc. in regular turn afterwards.

Description of drawings

Fig. 1 is the wiring configuration diagram of existing public telephone;

Fig. 2 is the inner bay composition of existing mobile phone;

Fig. 3 is an outside drawing of the present invention;

Fig. 4 is the circuit block diagram of phone body of the present invention;

Fig. 5 is the inner bay composition of internally-arranged type phone body of the present invention;

Fig. 6 is the built-in inner bay composition that adds outer plug-in card type phone body of the present invention;

Fig. 7 is the Organization Chart of software systems of the present invention;

Fig. 8 is the operational flowchart of main program framework program of the present invention;

Fig. 9 is the operational flowchart of selftest handling procedure of the present invention;

Figure 10 is the operational flowchart of SIM card dial-up program of the present invention;

Figure 11 is the operational flowchart of calculating punch plug-in card audit program of the present invention;

Figure 12 is the operational flowchart that outside SIM card handling procedure is switched in the present invention;

Figure 13 is the operational flowchart that inner SIM card handling procedure is switched in the present invention;

Figure 14 is the operational flowchart of card taking determining program of the present invention.

Embodiment

See also shown in Figure 3, be to be outside drawing of the present invention, it is to comprise a phone body 1, one power input part 2 and an antenna 3, wherein, this phone body 1 is to be responsible for receiving and voice signal, so that allow both sides user can carry out voice intercommunication, this power input part 2 is connected in this phone body 1, form by ac power plug 21 and power line 22, be to be responsible for providing this phone body 1 needed supply of electric power own, 3 on this antenna is located at this phone body 1 upper end, is to receive and the interface that transmits as radio wave, and is responsible for carrying out the reception or the transmission of signal with base station.

Now cooperate and consult Fig. 3 and shown in Figure 4, this phone body 1 is further (to contain shell by an outside calculating punch (containing card locking device) 11, a LCD figure module 12, one key-press modules 13, a microphone 14, a phone shell mechanism 15.The hook switch and the sense switch etc. that opens the door), a battery backup 16 and a power supply unit 17 connect to form with a main control circuit 18 etc. respectively.

This main control circuit 18 further comprises a microprocessor (hereinafter to be referred as CPU) 18-1, one programming system device (Program System Device :) internal memory and control circuit 18-2 hereinafter to be referred as PSD, one EEPROM internal memory 18-3, one hardware reset circuit 18-4, one little processing monitoring circuit 18-5, one Memory Backup and lithium battery circuit 18-6, one reserve battery low-voltage detection circuit 18-7, one charging circuit 18-8, one power sense circuit 18-9, one gsm module control circuit 18-10, one power supply circuit 18-11, one gsm module 18-12, one antenna interface circuit 18-13, one conversation interface circuit 18-14.One calculating punch control circuit 18-15, an inner calculating punch 18-16, a peripheral interface control circuit 18-17, a buzzer interface circuit 18-18, wherein:

This CPU18-1 is in order to control the running of whole phone body 1.

This PSD internal memory and control circuit 18-2 are connected in this CPU18-1, are to deposit program code and control circuit signal.

This EEPROM internal memory 18-3 is connected in this CPU18-1, is the version of depositing this phone body 1, IP speed dial-up, testing oneself enters password.Phone body 1 kenel and other more nonvolatil data.

This hardware reset circuit 18-4 is connected in this CPU18-1, is when maintenance person will be reset this phone body 1, only need press replacement (Reset) key, just can force this CPU18-1 and other circuit to enter Reset Status.

This little processing monitoring circuit 18-5 is connected to this CPU18-1 and hardware reset circuit 18-4, is to prevent that this phone body 1 from may take place because of program error causes the phenomenon when machine.

This Memory Backup and lithium battery circuit 18-6 are connected to this CPU18-1 and PSD internal memory and control circuit 18-2, provide the supply of the internal memory self-sustaining electric power of this phone body 1, allow this phone body 1 when unregulated power, data such as its inner setting and Fee Schedule can thereby not disappear.

This reserve battery low-voltage detection circuit 18-7 is connected to this battery backup 16 and CPU18-1, is the voltage that detects this battery backup 16, and reminds this phone body 1 to change battery opportunity.

This charging circuit 18-8 is connected to this battery backup 16 and power supply unit 17, is that charging is used as reserve battery.

Whether this power sense circuit 18-9 is connected to this power supply unit 17 and CPU18-1, be to detect source power supply to power.

This gsm module control circuit 18-10 is connected in this CPU18-1, is as interface circuit wiring, current potential conversion and the indication of network signal lamp.

This power supply circuit 18-11 is connected to this power supply unit 17 and power sense circuit 18-9, it is the supply of electric power that this phone body 1 is provided via outside source power supply, and by external power transformer (figure slightly) AC power is converted to DC power supply, with provide+3.3V and+5.0V be to this phone body 1 usefulness.

This gsm module 18-12 is connected to gsm module control circuit 18-10 and this power supply circuit 18-11, is to do to receive and transmit order with the serial data port of this CPU18-1, informs to transmit dialing, conversation and calling.

This antenna interface circuit 18-13 is connected in this antenna 3 and gsm module 18-12, is to be used for changing these antenna 3 connector lugs and to prevent that thunderbolt from destroying.

This conversation interface circuit 18-14 is connected to this microphone 4, CPU18-1 and gsm module 18-12, is as the interface of this microphone 14 with this gsm module 18-12 conversation, and has the function whether this microphone 14 of detection exists.

This calculating punch control circuit 18-15 is connected to this outside calculating punch 11, CPU18-1 and PSD internal memory and control circuit 18-2, be the inside and outside SIM card of conversion, and go into used clock pulse (clock) the generation circuit of control port, the supply control of SIM card working power and card and select signal as the output of SIM card.

This inside calculating punch 18-16 is connected in this calculating punch control circuit 18-15, is to be used for depositing inner SIM card.

This peripheral interface control circuit 18-17 is connected to this LCD figure module 12, key-press module 13, phone shell mechanism 15, CPU18-1 and PSD internal memory and control circuit 18-2, is that control is used as interface.

This buzzer interface circuit 18-18 is connected in this PSD internal memory and control circuit 18-2, be in order to the inlet wire ring back tone and move back the card sound and ring, and it includes a buzzer.

By the foregoing circuit square as can be known, this phone body 1 so can be divided into internally-arranged type and the built-in outer plug-in card type that adds in operation, is respectively its mode of operation to be described as follows because of having an inner calculating punch 18-16 and an outside calculating punch 11:

(1) internally-arranged type: the inside structure of its phone body 1 as shown in Figure 5, be to insert SIM card in inner calculating punch 18-15 by GSM common network company in advance, the user buys the IP personality card to GSM common network company again, press earlier IP speed during use and dial key (according to the special code of network company's setting), after putting through, again according to related datas such as indication input card number, password and callee numbers, treat that network company confirms after, just can converse with the other side.

(2) the built-in outer plug-in card type that adds: the inside structure of its phone body 1 as shown in Figure 6, be when not using outer plug-in card, the user can use (method is with above-mentioned internally-arranged type) by certain formality authentication back by this phone body 1 built-in SIM card, then the subscriber card (must have SIM card on this card) that inserts GSM common network company by the user during plug-in card, at this moment, network company can directly confirm user data, and is conversed by user's dial-in direct.

Moreover, the software systems 4 of this device are discussed, it is to be solely responsible for by this CPU18-1, this phone body 1 is when unused state, be to detect constantly whether the someone mentions these microphone 14 uses or inserts outside SIM card, if when having incident to handle, basic handling flow process and subsequent action are all handled by these software systems 4, just as shown in Figure 7, these software systems 4 are to comprise a main program framework program 4-1, one selftest handling procedure 4-2, one SIM card dial-up program 4-3, one calculating punch plug-in card audit program 4-4, one switches outside SIM card handling procedure 4-5, one switches the framework of an inner SIM card handling procedure 4-6 and a card taking determining program 4-7 etc., as follows to each program description respectively now:

Seeing also shown in Figure 8ly, is the operational flowchart for main program framework program 4-1 of the present invention, is to comprise the following steps:

Step 100: at first, electric power starting;

Step 102: executive circuit state and internal storage initial value design;

Step 104: carry out gsm system initial value design program;

Step 106: hang up this microphone 14 and pick up this microphone 14 again?

If then directly enter step 108;

If not, then skip to step 112;

Is step 108:GSM initial value set success?

If then skip to step 112;

If not, then directly enter step 110;

Step 110: carry out gsm system initial value design program;

Step 112: executive circuit situation DP display processor;

Step 114: enter the selftest pattern?

If then directly enter step 116;

If not, then skip to step 118;

Step 116: skip to selftest handling procedure 4-2 (being disclosed in Fig. 9), and after finishing, enter step 118;

Step 118: hang on 14?

If then directly enter step 120;

If not, then skip to step 126;

Step 120: judge incoming call (Incoming Call) flag?

If 1, then directly enter step 122;

If 0, then skip to step 124;

Step 122: carry out the incoming call handling program, and after finishing, skip to step 126;

Step 124: skip to SIM card dial-up program 4-3 (being disclosed in Figure 10), and after finishing, enter step 126;

Step 126: skip to calculating punch plug-in card audit program 4-4 (being disclosed in Figure 11), and after finishing, enter step 128;

Step 128: skip to card taking determining program 4-7 (being disclosed in Figure 14), and after finishing, enter step 130;

Step 130: hang up microphone 14?

If then directly enter step 132;

If not, then get back to step 106;

Step 132: carry out calling phone DP display processor;

Step 134: skip to calculating punch plug-in card audit program 4-4 (being disclosed in Figure 11), and after finishing, enter step 136;

Step 136: skip to card taking determining program 4-7 (being disclosed in Figure 14), and after finishing, enter step 138;

Step 138: hang on 14 or have the circuit obstacle to take place?

If then get back to step 106;

If not, then directly enter step 132.

Seeing also shown in Figure 9ly, is the operational flowchart for selftest handling procedure 4-2 of the present invention, is to comprise the following steps:

Step 200: selftest handling procedure 4-2 begins;

Step 202: show to enter selftest picture and version and require the input password;

Step 204: 6 yards of password inputs;

Step 206: import and surpass 5 seconds or gate is closed or microphone 14 is mentioned?

If then skip to step 246;

If not, then directly enter step 208;

Step 208: import correct?

If then directly enter step 210;

If not, then get back to step 202;

Step 210: show " selftest is pushed (1-3) ";

Step 212, is button selected?

If select 1, then skip to step 214;

If select 2, then skip to step 224;

If select 3, then skip to step 234;

Step 214: show " hardware testing is pushed (1-3) ";

Is step 216: button selected?

If select 1, then skip to step 218;

If select 2, then skip to step 220;

If select 3, then skip to step 222;

If select ESC Escape or overtime, then get back to step 210;

Step 218: the circuit system conditional code shows to be handled, and gets back to step 516 after testing;

Step 220: these LCD figure module 12 test black and white flicker secondaries, and in testing back rebound step 516;

Step 222: contactor and keyboard test, and after testing, get back to step 216;

Step 224: show " (1-3) pushed in the SIM test ";

Is step 226: button selected?

If select 1, then skip to step 228;

If select 2, then skip to step 230.

If select 3, then skip to step 232;

If select ESC Escape or overtime, then get back to step 210;

Step 228:GSM module 18-12 test, and after testing, get back to step 226;

Step 230:SIM signal quality inquiry test, and after testing, get back to step 226;

Step 232:GSM registration inquiry test, and after testing, get back to step 226;

Step 234: show " parameter setting is pushed (1-4) ";

Is step 236: button selected?

If select 1, then skip to step 238;

If select 2, then skip to step 240;

If select 3, then skip to step 242;

If select 4, then skip to step 244;

If select ESC Escape or overtime.Then get back to step 210;

Step 238: speed is dialled the number to set and is handled, and gets back to step 236 after testing;

Step 240: the selftest password setting is handled, and gets back to step 236 after testing;

Step 242:EEPROM initial value is inserted processing, and gets back to step 236 after testing;

Step 244: phone body 1 kenel is set and is handled, and gets back to step 536 after testing;

Step 246: selftest handling procedure 4-2 finishes.

Seeing also shown in Figure 10ly, is the operational flowchart for SIM card dial-up program of the present invention, is to comprise the following steps:

Step 300:SIM card dial-up program 4-3 begins;

Step 302: dialing initial value design;

Step 304: skip to calculating punch plug-in card audit program 4-4 (being disclosed in Figure 11), and after finishing, enter step 306;

Step 306: the sound adjustment shows to be handled;

Step 308: plug-in card or button are arranged?

If then skip to step 312;

If not, then directly enter step 310;

Step 310: fault or tangent line are arranged?

If then directly enter step 312;

If not, then get back to step 304;

Step 312: send code dialing?

If then directly enter step 314;

If not, then skip to step 316;

Step 314: this gsm module 18-12 sends dialing;

Step 316: will send the DTMF sign indicating number in conversing?

If then directly enter step 318;

If not, then skip to step 320;

Step 318: transfer to DTMF with gsm module 18-12;

Step 320: is dial-up greater than showing sign indicating number?

If then directly enter step 322;

If not, then skip to step 324;

Step 322: dial-up is shown output;

Step 324: whether connect?

If then directly enter step 326;

If not, then skip to step 328;

Step 326: show the duration of call;

Step 328: check that institute allows to transfer to by dial-up?

If then directly enter step 330;

If not, then skip to step 332;

Step 330: set and allow dial-out;

Step 332: the sound adjustment shows to be handled;

Step 334: check that conversation has broken string or mistake?

If then skip to step 338;

If not, then directly enter step 336.

Step 336: fault or tangent line are arranged?

If then directly enter step 338;

If not, then get back to step 312;

Step 338:GSM module 18-12 is hung up this and is taken on the telephone;

Step 340: fault or hang up this microphone 14 whether?

If then directly enter step 342;

If not, then get back to step 302;

Step 342:SIM card dial-up program 4-8 finishes.

Seeing also shown in Figure 11ly, is the operational flowchart for calculating punch plug-in card audit program 4-4 of the present invention, is to comprise the following steps:

Step 400: calculating punch plug-in card audit program 4-4 begins;

Step 402: judged whether to plug and at present for the insertion card is arranged?

If then directly enter step 404;

If not, then skip to step 410;

Step 404: skip to and switch outside SIM card handling procedure 4-9 (being disclosed in Figure 12), and after finishing, enter step 706;

Step 406: judge whether outside card wrong?

If then directly enter step 408;

If not, then skip to step 410;

Step 408: skip to and switch inner SIM card handling procedure 4-10 (being disclosed in Figure 13), and after finishing, enter step 410:

Step 410: calculating punch plug-in card audit program 4-4 finishes.

Seeing also shown in Figure 12ly, is the operational flowchart that switches outside SIM card handling procedure 4-5 for the present invention, is to comprise the following steps:

Step 500: switch outside SIM card handling procedure 4-5 and begin;

Step 502: set the state flags that tangent line and GSM do not set;

Step 504: judge whether that AC power is low excessively?

If then skip to step 508;

If not, then directly enter step 506;

Step 506: pin SIM card and handle;

Step 508: close gsm module 18-12 power supply, switch to outside SIM card path and open gsm module 18-12 power supply.

Does step 510: detecting outside calculating punch 11 have problem?

If then skip to step 516;

If not, then directly enter step 512;

Step 512: open outside SIM card power supply;

Step 514: carry out gsm system initial value design program;

Step 516: switch outside SIM card handling procedure 4-5 and finish.

Seeing also shown in Figure 13ly, is the operational flowchart that switches inner SIM card handling procedure 4-6 for the present invention, is to comprise the following steps:

Step 600: switch inner SIM card handling procedure 4-6 and begin;

Step 602: set the state flags that tangent line and GSM do not set;

Step 604: close this gsm module 18-12 power supply and switch to inner SIM card path;

Step 606: judge whether AC power normally or not has pintle hook lock?

If then directly enter step 608;

If not, then skip to step 610;

Step 608: open SIM card and pin processing;

Step 610: open gsm module 18-12 power supply.

Step 612: carry out gsm system initial value design program;

Step 614: switch inner SIM card handling procedure 4-6 and finish.

Seeing also shown in Figure 14ly, is the operational flowchart for card taking determining program 4-7 of the present invention, is to comprise the following steps:

Step 700: card taking determining program 4-7 begins;

Step 702: be outside SIM card path?

If then directly enter step 704;

If not, then skip to step 714;

Does step 704: card take out?

If then skip to step 708;

If not, then directly enter step 706;

Step 706: pressed the card taking key?

If then directly enter step 708;

If not, then skip to step 714;

Step 708: skip to and switch inner SIM card handling procedure 4-6 (being disclosed in Figure 13), and after finishing, enter step 710;

Step 710: whether inner SIM card gone bad and outside SIM card normally and not card taking?

If then directly enter step 712;

If not, then skip to step 714;

Step 712: skip to and switch outside SIM card handling procedure 4-5 (being disclosed in Figure 12), and after finishing, enter step 714;

Step 714: card taking determining program 4-7 finishes.

In view of the above, these software systems 4 are burned onto in this main control circuit 18, cooperate other circuit unit etc. to be planned again, just be achieved one and can use inner SIM card to dial IP network and the public radio phone set that can use outside SIM card/inner SIM card.

In addition, above-mentioned can also the replacement by wireless communication modes such as GPRS, CDMA,, the wireless transmission via more at a high speed strengthens this LCD figure module 12 again, just forms a multimedia messages station.

Claims (23)

1. public radio phone set with SIM card used is characterized in that comprising:

One phone body is in order to be responsible for reception and voice signal;

One power input part is connected in this phone body, in order to be responsible for providing this phone body needed supply of electric power itself; And

One antenna is located on this phone body, in order to be responsible for carrying out the reception or the transmission of signal with base station.

2. public radio phone set with SIM card used as claimed in claim 1 is characterized in that described power input part is made up of ac power plug and power line.

3. public radio phone set with SIM card used as claimed in claim 1 is characterized in that described phone body is to be connected to form by an outside calculating punch, a LCD figure module, a key-press module, a microphone, a phone shell mechanism, a battery backup, a power supply unit and a main control circuit.

4. public radio phone set with SIM card used as claimed in claim 3 is characterized in that described main control circuit further comprises:

One microprocessor is in order to control the running of this phone body;

One programming system device internal memory and control circuit is connected in this CPU, in order to deposit program code and control circuit signal;

One EEPROM internal memory is connected in this microprocessor, in order to the version of depositing this phone body, IP speed dial-up, testing oneself enters password, phone body kenel and other more nonvolatil data;

One hardware reset circuit is connected in this microprocessor, forces this microprocessor and other circuit to enter Reset Status when being activated;

One little processing monitoring circuit is connected to this microprocessor and hardware reset circuit, causes deadlock in order to prevent this phone body backhaul preface mistake;

One Memory Backup and lithium battery circuit are connected to this microprocessor and programming system device internal memory and control circuit, in order to the supply of internal memory self-sustaining electric power that this phone body is provided;

One reserve battery low-voltage detection circuit is connected in this microprocessor, in order to detecting backup battery voltage, and reminds this phone body to change battery opportunity;

One charging circuit is connected to this battery backup and power supply unit, in order to be used as the reserve battery charging;

One power sense circuit is connected to this power supply unit and microprocessor, in order to detect source power supply power supply situation;

One gsm module control circuit is connected in this microprocessor, in order to interface circuit wiring, current potential conversion and the indication of network signal lamp;

One power supply circuit, be connected to this power supply unit and power sense circuit, be the supply of electric power that this phone body is provided by outside source power supply, and AC power be converted to DC power supply, to offer this this body and function of phone by external power transformer;

One gsm module is connected to this power supply circuit and gsm module control circuit, is to do to receive and transmit order with the serial data port of this microprocessor, informs in order to transmit dialing, conversation and calling;

One antenna interface circuit is connected in this antenna and gsm module, in order to change this antenna connection head and to prevent that thunderbolt from destroying;

Whether one conversation interface circuit is connected to this microphone and gsm module, is the interface of conversing as this microphone and this gsm module, and detect this microphone and exist;

One calculating punch control circuit, be connected to this outside calculating punch, microprocessor and programming system device internal memory and control circuit, in order to changing inside and outside SIM card, and go into the used clock generation circuit of control port, the supply control of SIM card working power and card and select signal as the output of SIM card;

One inner calculating punch is connected in this calculating punch control circuit, in order to deposit inner SIM card;

One peripheral interface control circuit is connected to this MD figure module, key-press module, phone shell mechanism, microprocessor and programming system device internal memory and control circuit, is that control is used as interface; And

One buzzer interface circuit is connected in this programming system device internal memory and control circuit, in order to the inlet wire ring back tone and move back the card sound and ring.

5. public radio phone set with SIM card used as claimed in claim 4 is characterized in that described buzzer interface circuit includes a buzzer.

6. the using method of a public radio phone set with SIM card used is characterized in that, is to comprise the following steps:

At first, electric power starting;

Executive circuit state and internal storage initial value design;

" the M system initial value design program of execution;

Executive circuit situation DP display processor;

Execute card reading machine plug-in card audit program; And

Carry out the card taking determining program.

7. the using method of public radio phone set with SIM card used as claimed in claim 6 is characterized in that before the described executive circuit situation DP display processor then setting the GSM initial value if hang up microphone when hanging on again.

8. the using method of public radio phone set with SIM card used as claimed in claim 7 is characterized in that described GSM initial value if setting is unsuccessful, then carries out gsm system initial value design program.

9. the using method of public radio phone set with SIM card used as claimed in claim 6, it is characterized in that described circuit condition DP display processor executes after, still can select to carry out the selftest handling procedure.

10. the using method of public radio phone set with SIM card used as claimed in claim 9 is characterized in that described selftest handling procedure still comprises the following steps:

Show to enter selftest picture and version, and require the input password; The input password; After the password input was correct, LCD figure module show message required button to select; And

Can be via selecting to carry out hardware testing, GSM test and parameter setting.

11. the using method of public radio phone set with SIM card used as claimed in claim 10 is characterized in that described hardware testing comprises that the circuit system conditional code shows processing, the test of LCD figure module and contactor and keyboard test.

12. the using method of public radio phone set with SIM card used as claimed in claim 10 is characterized in that described GSM test comprises gsm module test, GSM signal quality inquiry test and GSM registration inquiry test.

13. the using method of public radio phone set with SIM card used as claimed in claim 6, it is characterized in that described parameter setting comprise speed dial the number set to handle, the selftest password setting is handled, the EEPROM initial value is inserted and handled and phone body kenel is set and handled.

14. the using method of public radio phone set with SIM card used as claimed in claim 6, it is characterized in that described input password after, if the situation that input surpassed 5 seconds or gate is closed or microphone is mentioned, constipation bundle selftest handling procedure.

15. the using method of public radio phone set with SIM card used as claimed in claim 6, after it is characterized in that described circuit condition DP display processor executes, if hang on, then judge the incoming call flag, if 1 is carried out the incoming call handling program, if 0 is carried out the SIM card dial-up program.

16. the using method of public radio phone set with SIM card used as claimed in claim 15 is characterized in that described this SIM card dial-up program still comprises the following steps:

The dialing initial value design;

Execute card reading machine plug-in card audit program;

The sound adjustment shows to be handled;

Plug-in card or button;

Send code dialing, then gsm module is sent dialing;

Will send the DTMF sign indicating number in the conversation, then gsm module transfers to DTMF to send DTMF sign indicating number;

Whether dial-up then with dial-up shows output greater than showing sign indicating number;

After the connection, show the duration of call;

Check the dial-up of pressing, and set permission and transfer to;

Carry out the sound adjustment and show processing; And

Conversation has broken string or when wrong, and gsm module is hung up this and taken on the telephone, and finishes this flow process in fault or after hanging up microphone.

17. the using method of public radio phone set with SIM card used as claimed in claim 16, it is characterized in that described calculating punch plug-in card audit program still comprises the following steps: to have determined plugged and at present when the insertion card is arranged, just carry out and switch outside SIM card handling procedure, determining outside card when wrong, just carrying out and switch inner SIM card handling procedure.

18. the using method of public radio phone set with SIM card used as claimed in claim 17 is characterized in that the outside SIM card handling procedure of described switching still comprises the following steps:

Set the state flags that tangent line and SIM do not set;

Cross when low when AC power, just close the gsm module power supply, switch to outside SIM card path and open the gsm module power supply;

Detect outside calculating punch, if no problem is then opened outside SIM card power supply;

And

Carry out gsm system initial value design program.

19. if the using method of public radio phone set with SIM card used as claimed in claim 18 is characterized in that described AC power not low excessively, then SIM card is pinned and handles.

20. the using method of public radio phone set with SIM card used as claimed in claim 17 is characterized in that the inner SIM card handling procedure of described switching still comprises the following steps:

Set the state flags that tangent line and GSM do not set;

Close the gsm module power supply and switch to inner SIM card path:

Determine the undesired or pintle hook lock not of AC power, then open the gsm module power supply; And execution gsm system initial value design program.

21. the using method of public radio phone set with SIM card used as claimed in claim 20 is characterized in that described if determine the normal or pintle hook lock of AC power, then opens SIM card and pins processing.

22. the using method of public radio phone set with SIM card used as claimed in claim 6 is characterized in that described card taking determining program still comprises the following steps:

Outside SIM card path;

Pushing the card taking key takes out card;

Carry out and switch inner SIM card handling procedure; And

Outside SIM card normally and not card taking is then carried out and is switched outside SIM card handling procedure if inner SIM card has been gone bad.

23. the using method of public radio phone set with SIM card used as claimed in claim 6, after it is characterized in that described card taking determining program, if directly hang up microphone, then carry out calling phone DP display processor, execute card reading machine plug-in card audit program, and carry out the card taking determining program.

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