CN2187357Y - Telephone set with computer charges counter - Google Patents

Abstract

The utility model provides a telephone set with a computer message accounting device. The signals of picking and hanging up and emitting number signals of rate input and setting can be obtained through adding supplementary contacts on the hook switch of an existing telephone set and keys, and the control, calculation and display can be realized by a charging interface board and a displayer with computer apparatuses. The utility model is suitable for users of communication terminals. The utility model has the advantages of easy use, multiple functions, and charging accuracy. The talking fee can be displayed when the conversation is over, and the utility model can also store and display call list and accumulation fee and can make users know the details.

Description

Telephone set with computer charges counter

The utility model relates to telephone set, specifically a kind of telephone set with message accounting.

Normally a kind of independent device of existing ticketing device, and function is also fewer.It is located at an end of telephonic communication control desk, or at the public telephone user terminal.A large amount of units and home phone number user can't know cost of the phone call situation at that time, take place easily that unexpected mistake is chargeed, the charge phenomenon, moreover public telephone charge also exist the duration segmentation too rough owe reasonable problem.

The purpose of this utility model is the telephone set that a kind of charged brain taximeter will be provided.It can realize real time billing, demonstration, the on-hook clearing, and accumulative total and storage, and also function is many, and easy to use.

The technical program adopts Single Chip Microcomputer (SCM) system to realize goal of the invention.Its basic thought is: give depositing Fee Schedule earlier in earlier by memory; Learn off-hook and on-hook time by the hook switch contact; Function is realized being provided with in additional key contact with keyboard; Adopt feature key to operate to revise and determine actual air time, the i.e. initial time of definite the other side's off-hook; Numerical key and particular key with keyboard are equipped with, remove or show; Control exclusive disjunction with single-chip microcomputer; Use the display display working condition, and charging result.

The telephone set of the charged brain taximeter of the technical program, comprise casing, mobile phone, hook switch, button and circuit arrangement, it is characterized in that also being provided with a supplementary contact at the hook switch place, charging circuit can be detected pluck, on-hook signal, have one group at button and be used to detect the additional key contact of sending out number signal and importing, be provided with.Also be provided with billing interface plate and display thereof in the said circuit arrangement, the circuit arrangement of billing interface plate comprises:

A D.C. regulated power supply.It makes power supply for the circuit on the billing interface plate provides, and receives the power input of each circuit (chip);

A single chip circuit (8031).It is used for process information as CPU and control shows.Input P mouth (pin 1) is connected P with the hook switch contact ₁Mouth low order address line (pin 32-39) is access to the input D of latch (373), P ₀Mouth high address line (pin 21-25) is access to the high address line of memory (6264,2864), and pin 26,27 is access to the chip selection signal pin of external memory circuit chip respectively

, P ₃The control line read-write pin of mouth ( 17, What 16) be access to the external memory circuit chip respectively reads to select signal pins, pin 18,19 connects crystal oscillator, the work clock signal is provided, pin 29 provides enabling signal as address wire for memory, pin 30 is for latch provides enabling signal, and the clock CLK pin of double as clock signal and interface chip (8279) joins;

A drive circuit (latch 373).Be used to latch low address signal, its input D is access to single chip circuit, data wire input (A or the A of output Q and external memory circuit chip _0-7) mutually multiply-connected, pin 11 connects with the pin of singlechip chip;

A memory circuit.By memory EEPROM(2864), RAM(6264), be used to store operation program, rate, ticket writing etc., low order address line (A _0-7), (data wire (D _0-7) and singlechip chip (8301 P ₀Mouth) low order address line joins high address line (A _8-12) one with singlechip chip (8301 P ₂Mouth) high address line joins pin

The read signal pin of 27 order sheet machine chips

16, the write signal pin of singlechip chip

17 and pin 29, with cross after connect memory chip input allow pin

22;

A control output display circuit.By the supplementary contact of interface circuit (8279), decoder (154), charactron row (LED * 14), keypad, and peripheral circuit element is formed.Push button signalling is from input (RL _0-3) deposit the FIFO memory of interface circuit (8279) in, regularly obtain the key-press status signal by single-chip microcomputer, and handle, by address wire, data wire, control line control interface circuit (8279) are again by output pin (OUTA _0-3, OUTB _0-3And SL _0-3) export, decipher, control peripheral circuit element (BG _A-H, BG _1-14) make 4 charactrons show the numeral of reflection operating state.

Cause that in order to prevent grid cut-off ram memory loses internal document because of power down, an anti-power down protection circuit can be set, it and RAM(6264) adapted, this circuit inserts the open the door end and the power input of storage RAM chip.

Above-mentioned circuit arrangement, along with the degree of integration difference of chip, its function power is also different, is reflected to and also has difference on the concrete device, but should comprise the composition structure of above-mentioned its necessary circuit device.

Good effect of the present utility model is:

1, because the technical program is to have increased a billing interface plate on the basis of existing push-button telephone, with the hook switch place, the button place increases the contact and forms, the circuit of its circuit and original call machine is isolated fully, therefore can not influence the electric function of original call machine, need not distinguish yet sending out number type.

2, select memory EEPROM2864 for use, can make amendment to the Fee Schedule that deposits in easily, also helped expanded function.

3, easy to use.This machine is got phone, from off-hook, the EOD end of dialing, set a certain moment and begin to charge (as delaying time for 5 seconds), if conversation in advance in delay time can realize instant Fare determined by travel time by particular key, but if the slow off-hook of the other side also particular key will deduct ineffective time; Nobody answers the call the other side, can be reduced by particular key by the same manner.

4, function is many.Can show Hour Minute Second (6 words in end) at ordinary times.Change showing behind the off-hook that institute dials talks about number (preceding 9-11 position word), per minute rate (last 3 words).After beginning to charge, change demonstration current talking expense (5 words in end), press the per minute progression.After the on-hook, automatically prolonging shows as time expense result.(as 5 seconds) are used by feature key and numeral and can realize multi-functional utilization in addition.Comprise function is set, remove the function of function and modification content.

Following machine in conjunction with the embodiments and accompanying drawing be described further:

Fig. 1 is a circuit arrangement structure chart of the present utility model.

Fig. 2 is that the circuit theory of billing interface panel assembly is always schemed.

Fig. 3 is the circuit diagram of single-chip microcomputer and memory part.

Fig. 4 is the circuit diagram of control Output Display Unit part.

Fig. 5 is a power circuit diagram.

Referring to Fig. 1, wherein ringing circuit 1, polar protective circuit 2, dial-up circuit 3, speaking circuit 4, mobile phone circuit 5, capacitor C are original circuit arrangements of telephone set.Additional circuit comprises independently power supply 6, the billing interface plate 7 of band single-chip microcomputer and peripheral circuit, and the charactron row 8 who shows usefulness.That shared is hook switch Z and keyboard J.The pair of contact that the hook switch place increases, one group of contact that the button place increases and former machine remain isolation.After single contact changed double-contact, just can place on record, and process and display sending sign indicating number.

Fig. 2 is that billing interface plate circuit is always schemed, and its working power is provided by circuit power shown in Figure 5.

Fig. 3, Fig. 4 are divided into two parts to the total figure of circuit shown in Figure 2.

The circuit arrangement that Fig. 3 represents comprises single-chip microcomputer (8031), memory (6264,2864) and latch (373), and the anti-power down protection circuit with independent 4.5V power supply.

The P of singlechip chip ₁Mouth pin 1-8 is that input and hook switch Z join, in order to know off-hook and on-hook time, adjunction electricity group R _1-8Improve current potential.Pin 9 is a resetting pin, meets C, R becomes electrification reset, and the electric capacity charging reduces to 0, and pin 18-20 connects crystal oscillator, produces the 6MHZ frequency and makes clock reference, pin 29(

) be used for the enabling signal pin of program place memory, the enabling signal pin of latch during pin 30(ALE) as the low order address line, the clock signal termination CLK of double as interface circuit 8279, provide 1/6 crystal oscillator frequency, pin 31 ground connection show that memory under program is outside sheet, the outer memory EEPROM2864 of sheet deposits program and rate, and therefore memory 6264 store data and a part of program will

With

Through sending into door, the input that connects memory allows pin again

22.Single-chip microcomputer 8031 has four 8 mouths, P ₀The pin 32-39 of mouth not only makes the low order address line but also makes data wire, through the pin A of latch 373 with memory _0-7, interface circuit 8279 A.It is multiply-connected to join; P ₂Mouthful pin 21-28 is as the high address line, the A of 21-25 pin memory _0-7Join, 26,27 pin and EEPROM, again through the sheet choosing of paraphase and RAM, interface circuit 8279 number pin Join; P ₃Mouth pin 16 is the write signal line

, pin 17 is a reading signal lines

Respective foot with the external memory chip is connected respectively.

Deposit a month interior ticket meter record in the ram memory 6264, for preventing to lose because of outage causes data, the spy is provided with the power fail preventing data protective circuit, inserts the open the door pin 26 and the V of RAM chip _CCPin 28 bars up door when power down, and circuit is selected from " design of MCS-51 series monolithic application system " book.

Fig. 4 represents the interface circuit chips 8279 in the peripheral hardware, decoder chip 154 and charactron circuit.Interface circuit chips 8279 has very strong function, comes supervisory keyboard and display work with it, can monitor the demonstration of state and 16 charactrons of 64 buttons at most.The information channel of keyboard J and its input pin RL _0-3Join output pin SL _0-3Be connected with pin A, B, C, the D of decoder 154, the coding of output is through certain charactron of decoding gating, output pin OUTA _0-3, OUTB _0-3The stroke of gating charactron promotes to show by transistor BG.Present embodiment is selected 14 charactrons for use, shows 14 bit digital symbols altogether.

This routine display is the luminous nixie display of LED, also can adopt other charactron or LCD.

The course of work state of this device is summarized as follows:

When 1, static, single-chip microcomputer 8031 regular check P ₁Mouthful hook switch state that connects, interface circuit 8279 is the regular check key-press status also, the single-chip microcomputer timer was sent an interrupt signal in per 0.1 second, and when the demonstration mouth of interface circuit is sent, minute, second shows sign indicating number, by the operation of charactron read clock.

When 2, hook switch is motionless, utilizes keyboard setting, show.

By keyboard different contents can be set.This machine adopts cooperating of particular key (as * key, # key) and numerical key, realizes by the arrangement of address assignment, program.It can be provided with the rate of the world, domestic different regions, Monthly Fee, the additional cost of per minute, constant or other guide.Its process is: carry out input operation by the operation indication, the input content, regularly obtain the information of button this moment by interface circuit 8279, its state is sent into the FIFO memory, single-chip microcomputer is regularly obtained this content, do not find hook switch action when it, the content that is about to this instruction is delivered in the appropriate address of EEPROM, sends OH(then and represents OK) export again to 8279 demonstration memory and show that OH represents to be provided with end-of-job and kept for 10 seconds.

Zero clearing is if desired sent " 0 " into corresponding units during operation and is got final product.

3, external number dialing telephone call.

Elder generation's off-hook, hook switch action this moment, dialing then, concrete telephone number figure place various places difference is benchmark so get the shortest position, gets the method for zero starting point time-delay (5 second) when adding later on by turn again and determines initial timing time.In communication process, unit 8031 can search the rate address, and according to program, the automatic and air time multiplies each other, count and show by the per minute progression, during on-hook by the time, time-delay shows ticket (5 second), do not revise if having, then the result is deposited in ticket storage address location, and count ledgers.End-of-job is during recovery, minute, second shows.

Claims (2)

1, a kind of telephone set of charged brain taximeter, comprise casing, mobile phone, hook switch (Z), button (J) and circuit arrangement, it is characterized in that also being provided with supplementary contact (Z-1) at the hook switch place, button (J) locates also to be provided with additional key contact (J-1), also be provided with billing interface plate and display thereof in the said circuit arrangement, the circuit arrangement of billing interface plate comprises:

A D.C. regulated power supply, it provides working power for the circuit on the billing interface plate, receives the power input of each circuit;

A single chip circuit (8031), it is used for process information as CPU and control shows, input P ₁Mouth (pin 1) is connected with the hook switch contact, works by address wire, data wire and control line control interface circuit (8279), and is connected with it, and with memory circuit, drive circuit connects;

A drive circuit (latch 373) is used to latch low address signal, and input D is access to single chip circuit, wherein input (A or the A of output Q and external memory circuit chip _0-7) mutually multiply-connected;

A memory circuit is made up of memory EEPROM (2864), RAM (6264), is used to store operation program, rate, ticket writing, is connected between single chip circuit, drive circuit and the interface circuit;

A control output display circuit, by the supplementary contact of interface circuit (8279), decoder (154) charactron row (LED * 14), button, and the peripheral circuit element composition, push button signalling is from input (RL _0-3) deposit the FIFO memory of interface circuit (8279) in, regularly obtain the key-press status signal by single-chip microcomputer (8031), and handle, by address wire, data wire, control line control interface circuit (8279) are again by output (pin OUTA _0-3, OUTB _0-3And SL _0-3) export, decipher, control peripheral circuit element (BG _A-11, BG _1-14) make 14 charactrons show the respective digital of reflection operating state.

2, the telephone set of charged brain taximeter according to claim 1; it is characterized in that also being provided with in the circuit arrangement an anti-power down protection circuit with ram memory (6264) adapted, this circuit inserts open the door the end pin (26) and the power input V of ram memory chip _CC(pin 28).

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