CN2627747Y - Plug-in card type bar code public telephone - Google Patents

Abstract

The utility model discloses a plug-in bar code public telephone, which comprises a shell and a circuit disposed in the shell and taking telephone function. The utility model is characterized in that the public telephone is provided with a bar code scanner, a bar code signal input and switch control circuit, and a bar code telephone card used in conjunction with the bar code scanner, wherein the bar code scanner is composed of a bar code card-plug socket, and a circuit having bar code with scanning, reading and decoding functions; one face of the bar code telephone is printed with bar codes that represent card name and account or card name, account and password, and these bar codes can be read in by the bar code scanner. The utility model disposes the card name, account and password information of the 200-card or various IP telephone cards on the telephone card in the form of bar codes, thus achieving accurate, convenient, rapid and safe effects.

Description

Card insert type bar code public telephone

Technical field

The utility model relates to a kind of card insert type bar code public telephone, belongs to the communication equipment technical field.

Background technology

For solving public place telephone communication problems such as school, hospital, station, harbour, the IC-card public telephone extensively has been installed at present, use various phonecards such as IC-card, 200 cards and 200IC rechargeable card to provide service as the client, wherein IC-card is flexible and convenient to use, just can dial the other side's phone as long as insert IC-card, but IC-card causes the phonecard cost higher because of including storage IC chip, and the phonecard of low face amount can't be provided for the user.And 200 cards wait other several phonecards, make with plastics or paper, and are with low cost, but must dial card number, account number, password etc. earlier before dialling the other side's number, and these sign indicating numbers are added up tens at least, and twenties at most, memory difficulty is dialed loaded down with trivial details.

Technology contents

The utility model technical issues that need to address provide a kind of card insert type bar code public telephone, use card insert type bar code public telephone, and existing IC-card public telephone is flexible, and 200 advantages with low cost of blocking the card of expecting someone's call are arranged again.

Technical problem of the present utility model reaches by following technical measures: a kind of card insert type bar code public telephone set; comprise housing and place the outside line that plays the telephone set effect in the housing to import; overvoltage protection and anti-clutter circuit; polarity switching; switching circuit; speaking circuit; the DTMF transtation mission circuit; ringing circuit; the display screen circuit; keyboard circuit and socket; power circuit; monitoring combined with other handset and illegally used and wake-up circuit; central processing unit; it is characterized in that: be equiped with bar code scanner; bar code signal input and ON-OFF control circuit; with the matching used bar code phonecard of bar code scanner; wherein bar code scanner by the bar code card insertion base with have a bar code scanning; read sign indicating number; the circuit of decoding function constitutes; the bar code phonecard simultaneously is printed on bar code; wherein the bar code representative blocks name; account number or card name; account number and password, these bar codes can be read in by bar code scanner.

In the above-mentioned utility model, the I/O mouth of central processing unit chip Q14 and electric connections such as bar code signal input and ON-OFF control circuit, power circuit, speaking circuit, switching circuit, keyboard circuit and socket, display screen circuit.

In the above-mentioned utility model, power circuit comprises composition such as the element of carrying machine switch SW 1, charging capacitor C18, triode T14 and resistance, triode T4, T5, T6 form charge switch, triode T7, T8, T13 form discharge switching circuit, voltage-stabiliser tube provides stable voltage, diode Control current guiding; Power circuit provides power supply for central processing unit, speaking circuit, bar code signal input and ON-OFF control circuit, display screen circuit, keyboard circuit etc., and accepts the control of central processing unit; By two L1, L2 indicator light, the bright expression outside line of L2 red light is connected and charging, and the bright expression bar code scanner of L1 green light is read the sign indicating number success to the bar code phonecard, or the dial-up success, can dial the other side's number and conversation by prompt tone.

In the above-mentioned utility model, the card insertion base circuit also is connected to bar code signal input and ON-OFF control circuit, when card insertion base is plugged the bar code phonecard, the user hangs on, SW1 action, movable contact spring are left, under the control of central processing unit, bar code scanner is input to central processing unit to the scanning of bar code phonecard through the P70 of central processing unit mouth.

In the above-mentioned utility model, it is characterized in that: the inner band of central processing unit DTMF signaling function, central processing unit is received bar code information from bar code scanner, convert the DTMF touch-tone signal to, be sent on the circuit.

In the above-mentioned utility model, the integrated digital circuit of the external DTMF of central processing unit receives bar code information from bar code scanner with central processing unit, converts the DTMF touch-tone signal to, is sent on the circuit.

In the above-mentioned utility model, the capacitance of C18 is the electric capacity more than or equal to 0.1F, and C18 is provided with for bar code scanner provides enough voltage and currents.

In the above-mentioned utility model, capacitance C18 is replaced by chargeable battery.

The utlity model has following advantage: bar code uses has accurate, convenient, fast, safe effect, and phonecard is with low cost, reduces cost, and is beneficial to marketing, has made things convenient for the user, the more rational competition of trend on public telephone.

Below in conjunction with the drawings and specific embodiments the utility model is done into one detailed explanation of step.

Description of drawings:

Fig. 1 is a block diagram of the present utility model.

Fig. 2 is the utility model circuit theory diagrams.

Embodiment:

As depicted in figs. 1 and 2: a kind of card insert type bar code public telephone set, comprise housing and place the outside line that plays the telephone set effect in the housing to import 1, overvoltage protection and anti-clutter circuit 2, polarity switching 3, switching circuit 4, speaking circuit 5, DTMF transtation mission circuit 9, ringing circuit 11, display screen circuit 13, keyboard circuit and socket 10, power circuit 7, monitoring combined with other handset and illegally used and wake-up circuit 6, central processing unit 8, it is characterized in that: be equiped with bar code scanner 20, bar code signal input and ON-OFF control circuit 16, with bar code scanner 20 matching used bar code phonecards 18, wherein bar code scanner 20 by bar code card insertion base 17 with have bar code scanning, read sign indicating number, the circuit 19 of decoding function constitutes, bar code phonecard 18 one sides are printed on bar code, wherein the bar code representative blocks name, account number or card name, account number and password, these bar codes can be read in by bar code scanner 20; The I/O mouth of central processing unit 8 chip Q14 and bar code signal input and ON-OFF control circuit 16, power circuit 7, speaking circuit 5, switching circuit 4, keyboard circuit and electric connections such as socket 10, display screen circuit 13; Power circuit 7 comprises composition such as the element of carrying machine switch SW 1, charging capacitor C18, triode T14 and resistance, triode T4, T5, T6 form charge switch, triode T7, T8, T13 form discharge switching circuit, and voltage-stabiliser tube provides stable voltage, diode Control current guiding; Power circuit 7 provides power supply for central processing unit 8, speaking circuit 5, bar code signal input and ON-OFF control circuit 16, display screen circuit 13, keyboard circuit 10 etc., and accepts the control of central processing unit 8; By two L1, L2 indicator light, the bright expression outside line of L2 red light is connected and charging, and the bright expression bar code scanner of L1 green light is read the sign indicating number success to the bar code phonecard, or the dial-up success, can dial the other side's number and conversation by prompt tone; Card insertion base 17 circuit also are connected to bar code signal input and ON-OFF control circuit 16, when card insertion base 17 is plugged bar code phonecard 18, the user hangs on, SW1 action, movable contact spring are left, under the control of central processing unit 8, bar code scanner is input to central processing unit 8 to 18 scannings of bar code phonecard through the P70 of central processing unit 8 mouth; The inner band of central processing unit 8 DTMF signaling functions receive bar code information from bar code scanner with central processing unit 8, convert the DTMF touch-tone signal to, are sent on the circuit; It is characterized in that: central processing unit 8 external DTMF integrated circuits, central processing unit 8 is received bar code information from bar code scanner, convert the DTMF touch-tone signal to, be sent on the circuit; Capacitance C18 is the electric capacity more than or equal to 0.5F, and C18 is provided with for bar code scanner provides enough voltage and currents; Capacitance C18 is replaced by chargeable battery.As can be seen from Figure 2, it is chip Q14 that the chip of central processing unit 8 adopts EM78806, and its inside is provided with the 8KROM program storage, DTMF, FSK decoder, DTMF transmitter, RAM and 32 I/O mouths.The I/O mouth of Q14 connects bar code signal input and ON-OFF control circuit 16, power circuit 7, speaking circuit 5, switching circuit 4, keyboard circuit 10 and display screen circuit 13 etc. respectively.Power circuit is by the machine of the carrying switch of SW1, promptly formed charge switch and formed discharge switch by T7, T8, T13 by T4, T5, T6 than high capacitance C18, two electronic switching circuits, voltage-stabiliser tube Z is for providing stable voltage, diode D Control current guiding, composition such as T14 and resistance, be central processing unit 8, input of speaking circuit 5 bar code signals and ON-OFF control circuit 16, display screen circuit 13, keyboard circuit 10 etc. provide power supply.The concrete course of work of present embodiment is as follows: when the user carries machine SW1, action, movable contact spring, provide a forward V1 voltage through the P5-4I/O mouth of D23, R35, R87 and central processing unit 8 left.Under the control of central processing unit 8, provide a forward voltage with its P76I/O mouth, make the charge switch conducting of T4, T5, T6, the 48V source current major part that outside line is provided flows to C18, makes its charging, and the L2 red light is bright simultaneously, the on of expression circuit.But charge, this moment, display screen 13 nothings showed.When screen voltage reached rated voltage, signal languages such as " asking plug-in card " appearred.At this moment, the voltage on the C18 electric capacity in the power circuit 7 has been charged to specified voltage.Z8 and T14 conducting.Low promptly approximate 0 current potential appears in central processing unit 8P72I/O mouth.Work as card insertion base 17 again and be inserted with phonecard 18, in bar code signal input and ON-OFF control circuit 16, the SW3 action, movable contact spring upwards makes the P71I/O mouth of central processing unit 8 receive the VI forward voltage again.Under such condition, central processing unit 8 makes T7, T8, the conducting of T13 discharge switch for its P74I/O provides forward voltage, is bar code scanner 20, and SCAN-PW is provided scanning power supply.After the scanning, bar code information on the phonecard that bar code scanner is received, through the P70I/O of central processing unit 8 mouth, be input to central processing unit 8, when central processing unit 8 detect the bar code information of input errorless after, just provide a forward voltage to its P77I/O, the T1 of switching circuit 4, T2, T3 conducting, get through DTMF transtation mission circuit 9, the L1 green light is bright simultaneously.Therewith the time, 0 current potential appears in the P76 mouth of central processing unit 8, and the charge switch of T4T5T6 is ended, and stops charging and red light and goes out.At this moment the bar code information that central processing unit 8 is received converts dtmf signal to and delivers to its TONE mouth, sends to outside line through DTMF transtation mission circuit 9 and switching circuit 4.The user dials the other side's number and conversation according to prompt tone then.

Claims (8)

1; a kind of card insert type bar code public telephone set; comprise housing and place the outside line that plays the telephone set effect in the housing to import (1); overvoltage protection and anti-clutter circuit (2); polarity switching (3); switching circuit (4); speaking circuit (5); DTMF transtation mission circuit (9); ringing circuit (11); display screen circuit (13); keyboard circuit and socket (10); power circuit (7); monitoring combined with other handset and illegally used and wake-up circuit (6); central processing unit (8); it is characterized in that: be equiped with bar code scanner (20); bar code signal input and ON-OFF control circuit (16); also have and the matching used bar code phonecard of bar code scanner (20) (18); wherein bar code scanner (20) by bar code card insertion base (17) with have a bar code scanning; read sign indicating number; the circuit of decoding function (19) constitutes; bar code phonecard (18) one side is printed on bar code; bar code representative card name wherein; account number or card name; account number and password, these bar codes can be read in by bar code scanner (20).

2, card insert type bar code public telephone set according to claim 1 is characterized in that: the input of the I/O mouth of central processing unit (8) chip Q14 and bar code signal and ON-OFF control circuit (16), power circuit (7), speaking circuit (5), switching circuit (4), keyboard circuit and socket (10), display screen circuit electric connections the such as (13).

3, card insert type bar code public telephone set according to claim 1, it is characterized in that: power circuit (7) comprises composition such as the element of carrying machine switch SW 1, charging capacitor C18, triode T14 and resistance, triode T4, T5, T6 form charge switch circuit, triode T7, T8, T13 form discharge switching circuit, voltage-stabiliser tube provides stable voltage, diode Control current guiding; Power circuit (7) is that central processing unit (8), speaking circuit (5), bar code signal input and ON-OFF control circuit (16), display screen circuit (13), keyboard circuit (10) etc. provide power supply, and accepts the control of central processing unit (8); By two L1, L2 indicator light, the bright expression outside line of L2 red light is connected and charging, and the bright expression bar code scanner of L1 green light is read the sign indicating number success to the bar code phonecard, or the dial-up success, can dial the other side's number and conversation by prompt tone.

4, card insert type bar code public telephone set according to claim 1, it is characterized in that: card insertion base (17) circuit also is connected to bar code letter input number and ON-OFF control circuit (16), when card insertion base (17) is plugged bar code phonecard (18), the user hangs on, SW1 action, movable contact spring are left, under the control of central processing unit (8), bar code scanner is to bar code phonecard (18) scanning, is input to central processing unit (8) through the P70 mouth of central processing unit (8).

5, card insert type bar code public telephone set according to claim 1, it is characterized in that: the inner band of central processing unit (8) DTMF signaling function, central processing unit (8) is received bar code information from bar code scanner, convert the DTMF touch-tone signal to, be sent on the circuit.

6, card insert type bar code public telephone set according to claim 1, it is characterized in that: it is characterized in that: the external DTMF signaling of central processing unit (8) circuit, central processing unit (8) is received bar code information from bar code scanner, convert the DTMF touch-tone signal to, be sent on the circuit.

7, card insert type bar code public telephone device according to claim 3 is characterized in that: the capacitance of C18 is the electric capacity more than or equal to 0.1F, and C18 is provided with for bar code scanner provides enough voltage and currents.

8, card insert type bar code public telephone device according to claim 3, it is characterized in that: capacitance C18 is replaced by chargeable battery.

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