KR900004057Y1 - Apparatus for receipt publication - Google Patents

Abstract

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Description

Taxi fare receipt issuing device

1 is a block diagram showing the electrical configuration of the present invention.

2 is a timing chart of a ring counter used in the present invention.

3 is an exemplary view of a receipt issued by the present invention.

* Explanation of symbols for main parts of the drawings

AND ₁ -AND ₅ : AND gate CO: carry

CK: Clock terminal C ₁ -C ₅ : Control terminal

DF ₁ -DF ₅ : D flip flop group L: Latch

MM ₁ : Monostable Multi MSB: Most significant bit output

NR ₁ , NR ₂ : Noah gate PC: Preset counter

Q ₁ -Q ₅ : Output terminal RC: Ring counter

S ₁ -S ₅ : Switch group SC ₁ , SC ₂ : Detector

TC ₁ : Trigger terminal

The present invention relates to a taxi fare receipt issuing device that allows the taxi passenger to issue a fare receipt on the fly.

As it is known, the receipt of the taxi fare could not be received, so when the taxi was used for business purposes, the grounds for the processing of the cab became ambiguous.

Therefore, it may be easy to think that this problem can be solved by using a microprocessor and allowing a receipt to be issued by a system incorporating a printer. However, this type of receipt issuing device has a considerable manufacturing cost. Since the economic burden becomes heavy, it cannot be widely distributed, and the volume is so large that it will further reduce the utilization space in the narrow car, which has significant problems in practical use.

In order to minimize the volume and manufacturing cost of a receipt issuing device, the present invention obtains various data from the input / output port of a microprocessor built in a conventional taxi meter as a simple driving circuit. In order to enable the simple typewriter to operate, it will be described in detail with reference to the accompanying drawings.

D flip-flop groups (Group) (DF ₁ ), (DF ₂ ), (DF ₃ ), (DF ₄ ), (DF ₅ ), and each input terminal (D ₀ ), (D ₁ ), (D ₂ ), (D ₃ ) and clock input terminals (CLK ₁ )-(CLK ₅ ) are the data output terminals (DO ₀ ), (DO ₁ ), (DO ₂ ) of the microprocessor I / O port built in the taxi meter. ), (DO ₃ ) and Digit data output terminals (DG ₁ ), (DG ₂ ), (DG ₃ ), (DG ₄ ) and (DG ₅ ), and the D flip-flop group (DF ₁₎ ), (DF ₂ ), (DF ₃ ), (DF ₄ ), (DF ₅ ) outputs control lines (C ₁ ), (C ₂ ), (C ₃ ), (C ₄ ), (C ₅ ) Input terminals P ₀ and P _{1 of the} preset counter PC through the switch groups S ₁ , S ₂ , S ₃ , S ₄ and S ₅ ), (P ₂ ) and (P ₃ ), and the clock terminal CK of the sensing unit SC ₁ generates one pulse every time a character of the drum outer periphery is moved by one character. The output is applied and one pulse is generated at the payment button terminal (F) installed in the existing taxi meter input / output port (I / O) and the drum zero position. Key with the most significant bit output (MSB) of the ring counter (RC) Gene 10, a sensing unit (SC ₂₎ connected to an input of a NOR gate (NR ₁₎ (NR ₂₎ and the output of the NOR gate (NR ₂₎ is 10 It is connected to the clock terminal CK of the binary ring counter RC, and one side input of the latch L of the NAND gate ND ₁ and ND ₂ is connected, and one side of the latch L. The input and the preset enable (PE) of the preset counter (PC) are connected, the other input of the latch (L) is connected to the carry (Co), and the other output of the latch (L) is a monostable multivibrator Is applied to the trigger terminal (TC ₁ ) of the monostable multi) (MM ₁ ) and the output (OUT ₁ ) is connected with the output terminals (Q ₁ )-(Q ₈ ) of the decimal ring counter (RC). It is connected to the inputs of the AND gates (AND ₁ )-(AND ₈ ) with the gates (AND ₁ )-(AND ₈ ) and to operate the digital relay to press down the type of the drum rotated by the motor. Enable The trigger terminal (TC ₂ ) of the monostable multi (MM ₂ ) is connected to the most significant bit output (MSB) of the decimal ring counter (RC), and the output (OUT ₂ ) is connected to the motor so that feeding operation can be performed. The control terminal of the monostable multi MM ₁ is connected to the power switch SW.

According to the present invention, a digital signal indicating the current amount of money is displayed by a scanning method in an I / O port of a microprocessor embedded in a taxi meter when a taxi is driving.

Thus, for example, if the current taxi fare is 2950 won, the signal is supplied from the digit data output terminal DG ₁ and the data output terminals DO _{1 to} DO ₃ become “0”, so the D flip-flop group (DF ₁₎ and the output of the "0", then as the signal supplied from the digit data output terminal (DG ₁₎ data output terminals _{(DO 0) - (DO 3} ) is "101" is because the group D flip-flop (DF ₂ ) Output is also "101", and the signal is supplied from the digit data output terminal (DG ₃ ) and the data output terminals (DO ₀ )-(DO ₃ ) become "1001" and thus the D flip-flop group ( DF ₃ ) is also "1001", and the signal is supplied from the digit data output terminal (DG ₄ ) while outputting the data output terminals (DO ₀ )-(DO ₃ ) and the D flip-flop group (DF ₄ ). Also becomes " 10 ", and a signal is supplied from the digit data output terminal (DG ₅ ), so that data output terminals (DO ₀ )-(DO ₃ ) and D plug are supplied. The output of the lip flop group DF ₅ is to repeat the state which becomes "0" very quickly.

Therefore, the current taxi fare data is stored in the D flip-flop group (DF ₁ )-(DF ₅ ), which is the control line (C ₁ )-(C of the switch group (S ₁ )-(S ₈ ). ₅ ) As described below, no control signal is input so that the state remains completely "OFF". The drum is not rotated at all, and the digit relay for pressing down the type of the drum is also controlled by the ring counter (RC). Since no signal is generated at the output terminals (Q ₁ )-(Q ₈ ), it is normally maintained.

In this way, when the driver reaches the destination, the driver presses the payment button of the taxi meter and the passenger pays the fare. At this time, a receipt is automatically issued so that the passenger can receive the taxi fare receipt.

That is, the moment the driver presses the pay button on the taxi meter, one pulse is supplied from the input / output port (I / O) of the microprocessor, which causes the output of the noah gate (NR ₂ ) to instantaneously drop and then rise again. At the rinsing edge, a high level (hereinafter referred to as "H") signal is generated at the output terminal Q ₁ , which is applied to the control line C ₁ of the switch group S ₁ so that the D flip-flop group DF _{1 is generated.} ) Is applied to the input terminals P ₀ , P ₁ , P ₂ , and P ₃ of the preset counter to set the output state of the internal flip-flop to "0". do.

Therefore, in the carry (Co) immediately, the output is changed from the "H" signal to the low level (hereinafter referred to as "L") signal, so the "L" signal is applied to the NAND gate (ND ₂ ) input of the latch (L). At the other output terminal, the “H” signal is generated to apply a trigger signal to the trigger terminal TG ₁ of the monostable multi-mm ₁ .

At this time, the monostable multi (MM ₁ ), which is in standby mode by the initial operation of the power switch (SW), generates one pulse to the output (OUT ₁ ), and as a result, the AND gate (AND ₁ ) immediately generates an output. By driving the digit relay, the first type of drum is battered and "0" is printed.

In addition, the motor for driving the drum is operated while the most significant bit output MSB of the ring counter RC is in the "L" state, and is stopped so that the most significant bit output MSB is in the "H" state. When the output is generated at the output terminal Q ₁ of the counter RC, the stopped motor rotates to rotate the drum.

In this way to as Motor that by rotating the drum and in the one pulse generation moment sensor (SC ₂₎ to the drum completes one rotation, which is applied to the input of the NOR gate (NR ₁₎ whose output is momentarily "L" state This causes the output of the noah gate NR ₂ to be in the "H" state instantaneously, thereby supplying a rising signal to the clock terminal CK of the ring counter RC, this time output terminal Q ₂ of the ring counter RC. Is generated on the control line C ₂ of the switch group S ₂ , so that the data 101 of the D flip-flop group DF ₂ is input terminal P of the preset counter PC. ₀ ), (P ₁ ), (P ₂ ) and (P ₃ ) are applied to set the output state of the internal flip-flop to "101".

In this case, the motor continues to rotate. As described above, when one character of the drum moves, one pulse is continuously supplied from the detector SC ₂ as described above. When the pulse is input to the clock terminal CK of the preset counter PC and the state of the internal flip-flop of the preset counter PC is subtracted to "0", the state of the carry Co returns to the "L" state. Since the other output of the latch L is in the "H" state, the second digit relay is activated and the tenth value is printed after the above one unit. In this case, five pulses are generated from the detector despite the rotation of the motor. As soon as it occurs, that is, when five characters are moved, the digit relay operation can be performed at a very high speed, so that the fifth character "5" can be accurately hit.

Subsequently, the drum is continuously rotated by the rotational force of the motor to complete two revolutions. Therefore, the detector SC ₂ generates one pulse again, and ascends the rising signal to the clock terminal CK of the ring counter. In this case, the output is generated at the output terminal Q ₃ of the ring counter RC. Therefore, the internal flip-flop of the preset counter PC becomes "1001" by the operation of the switch group S ₃ . Whenever the letters of the drum are shifted by one character, one pulse is supplied from the detector SC ₁ and the preset counter PC is subtracted. When the nine characters are moved, the internal flip-flop is “0”. Carry (Co) is generated and the digit relay is activated at that moment, so the ninth digit of the drum can be printed.

In this way, printing of one hundred units can be completed and can be printed by the method described above in units of thousand and ten thousand.

However, the taxi fare is only 5 digits or less because it is only 10,000 units. In the present invention, the output terminals (Q ₆ )-(Q ₈ ) of the ring counter are not used. Since there is no output from (MM ₁ ) so that the output signal of AND gate (AND ₆ )-(AND ₈ ) is not generated, the drum continues to idle and pulse is generated every time in detector (SC ₂ ), so the most significant bit The moment the output signal is generated at the output MSB, the motor is driven forward, and the printing operation as described above can be repeated while waiting for the next operation.

In addition, the "H" signal by the most significant bit output (MSB) is applied to the trigger terminal (TG ₂ ) of the monostable multi (MM ₂ ), and the signal voltage is generated during the time constant set, so that the feed motor rotates for the set time. The receipt paper of the correct length is transported, and the already printed receipt is discharged to the outside.

Therefore, the driver is allowed to take the cut line formed at the lower end of the discharged water, which can be cut and then issued to the passenger.

By increasing the installation number of the D flip-flop group, the switch group and the ring counter in the same configuration as above, it is possible to print the date and time of receipt receipt by the same method, and the data required for this is also the microprocessor input / output of the taxi meter. You get it from the port.

In this process, it is possible to issue a receipt as shown in Fig. 3. The sales tax number and trade name are always constant and it is inefficient to print them at any time. The method is preferably taken.

In this way, the present invention can give a taxi passenger a receipt at the same time as the fare receipt, and the passenger can use the received receipt usefully, so that the passenger's convenience can be achieved. Receipt issuing device is to get the data from the microprocessor embedded in the existing taxi meter and to operate the simple typewriter as a simple driving circuit, so it is not only cheaper to manufacture but also it is possible to make miniaturization and miniaturization. It is possible to provide a taxi fare issuing device.

Claims (1)

The microprocessor I / O port of the taxi meter and the D flip-flop groups (DF ₁ ) to (DF ₅ ) are connected and their outputs are switched to the preset counters (S ₁ ) to (S ₅ ). PC) and a detector (SC ₂ ) to obtain a signal generated by the taxi meter payment button from the input / output port (I / O port), and to obtain one pulse for every revolution of the drum, and a ring counter. The most significant bit output MSB of (RC) is connected to the inputs of the noar gates NR ₁ and NR ₂ , and its output is connected to the clock terminal CK of the ring counter RC. the first party detectors that one pulse occurs when the moving (SC ₁₎ for connection with the clock terminal (CK) of the preset counter (PC), and the ring counter (RC) clock terminal (CK) and a preset counter of Connect the preset enable (PE) and carry (Co) of (PC) with the latch (L) pressure, and output the trigger terminal (TG ₁ ) of the monostable multi (MM ₁ ). Coupled to _1), the output terminal of the ring counter (RC) (Q ₁₎ ~ (Q ₅₎ is a monostable multi-(output (OUT ₁₎ and the AND gate (AND ₁₎ ~ (AND ₅ with the MM ₁₎₎ as input to the hand which ever drive the digit relay to the output of the output terminal (Q ₁₎ - the control terminals (C ₁₎ of the switch _{(S 1) ~ (S 5} ) to _{(Q 1) - (C 5} ) Taxi fare receipt issuing device connected with.