JPS62242289A - Electronic type taxi meter - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to an improvement in an electronic taximeter that converts distance information into distance pulses and inputs the information, and particularly relates to improvements in electronic taximeters that convert distance information into distance pulses. The present invention relates to a new electronic taximeter that can easily correct changes in traveling distance per distance pulse (instrumental error) and freely change the correction value.

(Prior Art) In electronic taximeters that convert this type of distance information into distance pulses and input them, the number of distance pulses generated from the rotation sensor while the taxi travels a unit distance varies depending on the vehicle model. Needless to say, the number of distance pulses varies from vehicle to vehicle even within the same model, and therefore all electronic taximeters must correct the number of distance pulses according to each vehicle. Conventionally, this distance pulse number correction was
The number of pulses within a predetermined range is corrected using a dip switch, and those outside that range are corrected by changing the gear ratio of the rotation sensor (Japanese Patent Publication No. 55-9749, Japanese Patent Publication No. 56-2396, Tokuko Sho 56-4203
Publication No. 1, Special Publication No. 57-32388, Special Publication No. 57
-32389 Publication, Special Publication No. 59-13796,
(See Japanese Patent Publication No. 58-51317, Japanese Patent Publication No. 5B-51318, Japanese Patent Publication No. 40536-1982, etc.). The correction work by this dip switch is 10% of the reference pulse number.
In addition to being able to only make corrections within a certain range, it also required the troublesome work of comparing the reference pulse number and the actual running pulse number in percentages, converting this into a binary number, and operating the switch. Furthermore, if the DIP switch was not enough to correct the problem, it would be necessary to open the gabo knob and change the gear ratio by hand, which is much more complicated than operating the D-knob switch.

(Problems to be Solved by the Invention) The present invention was invented in view of the above-mentioned points. The value obtained by adding or subtracting the number of pulses corresponding to the distance is stored as an instrumental error correction value, and when driving for business, the number of business mileage pulses from the internal counter is corrected by the correction value from the instrumental error correction value memory to calculate the fare. By configuring the B difference to be performed and displayed, it is possible to eliminate the need for troublesome correction of instrumental error using conventional dip switches, etc., to correct the B difference with simple operations, and to freely change the value of the instrumental error correction value. The purpose of this invention is to provide a new electronic taxi meter that enables

(Means for Solving the Problem) The gist of the present invention is to provide: a rotation sensor unit that generates a mileage pulse of an equipped vehicle; an internal counter that counts the number of mileage pulses generated from the rotation sensor unit; A reference pulse memory that stores a predetermined number of reference pulses corresponding to a reference distance; A display circuit that displays fares, etc.; and a display circuit that controls the counter, reference pulse memory, instrumental error correction, value memory, and display circuit as necessary. a central processing unit that performs calculations and is connected to a remote control interface; a reset switch that clears the internal counter, an adjustment switch that instructs the start of calculations for instrumental error correction, and operation keys that can input necessary numerical values. a remote control device which is removably connected to the remote control interface; and the difference between the reference mileage pulse number and the reference pulse number counted by an internal counter when the equipped vehicle travels the reference distance; Add the number of additional pulses input from the remote control device and converted by the central processing unit to
an instrumental error correction value memory that stores and stores the total number of pulses;
An electronic taxi, which calculates and displays a fare by correcting the number of business mileage pulses from an internal counter using a correction value from an instrumental error correction value memory when traveling for business. − Exists in the meter・
The remote control device has a mode switch, and when the mode switch is pressed once, manual input from the operation key section is enabled, and when pressed twice, it becomes a multiple set mode, which allows the device to set the mode when traveling by an integer of the reference distance. If it is possible to perform difference correction, instead of traveling the reference distance, for example, 'l km, travel 1/2 l km, find the number of traveling pulses, and double this, to calculate the reference distance of 2 kI.
It becomes possible to obtain the same number of running pulses as when running 1, and the advantage is that the time and effort required for instrumental error correction are reduced accordingly.

(Example) An example of the present invention will be described below based on the accompanying drawings.

In the figure, reference numeral 2 denotes the main body of an electronic taximeter installed in the vehicle. Reference numeral 4 denotes a rotation sensor section that generates a mileage pulse according to the rotation of the axle X of the vehicle. Pulses generated from the rotation sensor section 4 are counted by an internal counter 6 built in the main body 2 of the electronic taximeter. 8 is a reference pulse memory, and the reference distance, for example 2
The reference pulse number for running 1 km is stored as 1400. The stored contents of this reference pulse memory 8 can be changed as desired. 10
is a remote control device, which has a reset switch 12 for clearing the internal counter 6, an adjustment switch 14 for instructing the start of calculation of instrumental error correction, and a masterpiece key section 16 for inputting necessary numerical values. . Reference numeral 18 denotes a mode switch. When the mode switch 18 is pressed once, manual input from the operation key section 16 is possible, and when pressed twice, it becomes the multiple cent mode, which corrects the instrumental error when traveling by one integer of the reference distance. It is considered possible to do so. 20 is a set key, 21 is a cancel key, and 22 is a display section. 24 is a display circuit for displaying fares and the like. 26 is a central processing unit (CPU) that controls the internal counter 6, the reference pulse memory 8, the instrumental error correction value memory 28 (described later), and the display circuit 24, performs necessary calculations, and controls the remote control via the remote control interface 30. It is connected to the device 10. The instrumental error correction value memory 28 is
The difference between the reference mileage pulse number counted by the internal counter 6 and the reference pulse number when the equipped vehicle travels the reference distance, and the additional pulse number input from the remote control device 10 and converted by the central processing unit 26 to this difference. The total number of pulses added is saved and stored as an instrumental error correction value. Make the instrumental error correction exactly match the reference mileage pulse number. For example, if the reference pulse number for 2km running is 1400, and the pulse number when actually running is 1440, set the instrumental error correction value to +40. However, as a practical matter, if the tire air leaks, the number of pulses will increase, and if the instrumental error correction value is set strictly, it will often not match the actual distance traveled. For example, if the standard distance is 21 m, the setting is made so that the fare at the taxi meter increases with a margin of 10 m to 30 m. Therefore, in order to make this setting easier, in the present invention, the once set instrumental error correction value is further set using a remote control device so that, for example, when the reference distance is 2 km, the amount of money increases when the vehicle travels 2020 m. In case, just 2
0 from the operation key section 16 of the remote control device IO, this is converted into a pulse number (14) by the CPU 26, sent to the instrumental error correction value memory, and returned to the original instrumental error correction value (40).
) plus this converted pulse number (14) (5
4) as a new instrumental error correction value in the instrumental error correction value memory 28.
is what is remembered.

(Function) When starting the instrumental error correction work, when the reset switch 12 is first pressed, the CPU 26 clears the internal counter 6. Next, drive the vehicle on the standard road! 1ll (e.g. 21ua
). The running mode may be to actually run on the road or to run on running rollers. When the running is finished, the adjustment switch 14 is pressed and the CPU 26 calculates the number of pulses on the internal counter 6 (for example, 1
440) and the number of pulses in the reference pulse memory 8 (for example, 1
400) is calculated, and the result is stored in the instrumental error correction value memory 28. This completes the instrumental error correction work (one-touch mode).

When the mode switch 18 is pressed at the end of the run, the mode becomes manual set mode. The operator is an electronic taxi
Enter a distance number that seems appropriate for the mileage shown on the meter display (for example, 20m; as this distance number, as in the example below, enter the standard distance + correction distance number, in this case 2020m). ) is inputted using the operation key section (numeric keypad section) 16, and the set key 20 is pressed. The CPU 26 performs calculations based on the distance number (20 m) input from the internal counter 6 and the remote control device 10 to obtain a correction value, and stores the result (for example, 54 pulses) in the instrumental error correction value memory 28. If you make a mistake in input, press the cancel key 21 and input again.

When the mode switch 18 is pressed twice at the end of the run, the mode becomes multiple cent mode. The distance traveled at this time is an integer of the reference distance. The operator inputs an integer and presses set key 2o. Next, add or subtract an appropriate number of distances to the mileage shown on the display of the electronic taxi meter, enter them using the operation key section 16, and press the set key 20. Calculations are performed based on the input integer values and distance numbers to obtain correction values, and the results are stored in the instrumental error correction value memory 28. In this mode, inputting large multiples will increase the error, so it is better not to enter too large numbers.

In this way, when the vehicle travels for business, the number of business mileage pulses from the internal counter 6 is corrected by the correction value from the instrumental error correction value memory 28, and the fare is calculated and displayed.

For example, the taxi fare system is 47 yen up to 'l ka+.
If the basic fare is 0 yen and 80 yen is added for every 370m beyond 21, the fare system based on the number of generated pulses will initially display 470 yen, but if the taxi meter receives 1400+1 pulses, it will become 470 yen. Add 80 yen to yen to display 550 yen, then 259 (1400/
2000x370-259)+1 pulse is received (assuming there is no instrumental error). (When performing instrumental error correction in manual set mode), the instrumental error correction value is +54 with respect to the reference pulse number (1400 pulses), so 145
When it becomes 4+1 pulse, 470 yen changes to 550 yen,
After that, 259+(259x54/1400)=269
Every time you receive +1 pulse, the amount added by 80 yen is displayed.

To explain this using a general symbol, it is the standard running ratio %! ! L
The reference pulse number N (1400 in the above example) for L (2 km in the above example), the number C of pulses when actually traveling the reference distance (1440 in the above example), the converted pulse number b for 20 m (14 in the above example) ), the instrumental error correction value is C-
If N + b (54 in the above example) and additional mileage l (370 m in the above example), then N + 1 if there is no instrumental error.
If you receive a pulse, the basic fee D (in the above example, 470 yen/2
km) and additional charge E (80 yen/370m in the above example) is added - times to display D+E (550 yen), and then N
/Llxj! (259) The amount will be displayed by adding E every time +1 pulse is received, but since there is actually an instrumental error, the instrumental error correction value H is C - N + b for the reference number of pulses N. However, when it becomes c+b+1 pulse, D
changes to D+H, then N/L1xf+ (N/L
1xJ)x(C-N+b)/N+1 The amount of money added E every time the pulse is received is displayed.

In the present invention, there are four modes: one-touch mode, manual set mode, multiple setting one-touch mode, and multiple multiple setting manual mode, and these will be further explained.

When the vehicle travels the one-touch mode reference distance L1, the internal counter 8 counts the number of pulses including instrumental error. At this time, the instrumental error correction is obtained by the calculation formula: instrumental error correction value H - internal counter value C - reference pulse value N.

Generally, in the relationship between the reference distance L1 and the reference pulse N, the pulse coefficient K is set on the program so that the reference distance L1 = the number of reference pulses x the pulse coefficient, so the value of this K and the internal counter value C are To express the reference distance L1 using the following formula, the reference distance L1=(C-H)xK.

To calculate the actual distance traveled when the number of pulses is, if there is no instrumental error, the actual distance S = number of pulses x pulse coefficient = PxL1/
(C-H) gives the correct S.

Here, since it is possible to convert the instrumental error correction pulse coefficient into a constant such as 2=L1/(CH), it is also possible to newly store 2 in the memory and calculate 5=PxK2.

In this way, an appropriate fare calculation can be performed as a basic value for a taxi fare system based on the S that has been subjected to instrumental error correction.

By the way, a taxi meter can only be put into actual use after it has been certified by a public institution after performing instrumental error correction. For this test, a tolerance L3 is accepted, but when performing instrumental error correction using the reference distance Ll, a w4 difference will occur due to the difference in temperature and tire pressure between the time of setting and the time of verification, etc.
There are cases where it falls outside the range of the tolerance L3. Therefore,
In practice, as shown in FIG. 3, the estimated distance L2 is increased in anticipation of the tolerance L3, and LL+L2 is set as the estimated reference distance and adjusted so as to fall within the range of the tolerance. That is, assuming that the reference distance Ll is 2000 m and the tolerance L3 is 100 m, the expected reference distance is about 203 Qm, and the instrumental error correction is performed. The method of instrumental error correction at this time is performed by pressing the adjustment switch when the vehicle has actually traveled a distance of 2030 m. According to the internal processing of the taxi meter, after traveling 2030m,
This is considered a 2000m run.

Manual Set Mode This mode allows adjustments taking into account the above-mentioned tolerance L3 to be made by operating the keyboard.

Using the symbols mentioned above, the following formulas are the same: instrumental error correction value H = internal counter value C - reference pulse value N (reference distance) illL 1 = reference pulse value NX pulse coefficient and reference distance MLI - (C - H) x K can be obtained.

At this time, the number of pulses P2 per 1 meter of actual travel is P2 = C/L
l.

From the keyboard, enter the expected standard distance, which is the sum of the distance glL2, taking into account the tolerance L3.

If you travel L2m, the number of pulses expected to be generated is L2xP2=p3, so in the case of Lm, c+P3=C
Only 2 pulses are generated.

Using this C2 to find a new expected instrumental difference correction value H2, H2=C2-N.

Therefore, the actual traveling distance S corrected for instrumental error when P pulses are generated is 5=PxL1/(C2-H2), so the accurate S
is obtained.

Here, since it is possible to convert the instrumental error correction pulse coefficient into a constant such as 3=L1/(C2-H2), it is also possible to newly store 3 in the memory and calculate 5=PxK3.

Similarly to the above example, if the reference distance L1 is 2000 m and the tolerance L3 is 100 m, and if keyboard input correction is performed with an estimated reference distance of about 2030 m, the method for instrumental error correction in this case is 2000 m. This is done by inputting 2030m from the keyboard at the point when the distance has actually been traveled. In the internal processing of the meter, 203
When the vehicle has traveled 0m, it is considered that the taxi has traveled 2000m.
Appropriate rate calculations can be performed as the basic figures for the rate system.

Multiple setting one-touch mode and multiple setting manual mode In these modes, in one-touch mode and manual set mode respectively, input a multiple of an integer in advance, then perform actual driving for - of the input value, and then perform actual driving for an integer multiple of the input value.・Instrumental error correction is performed.

(Effects of the Invention) As described above, the present invention calculates a value obtained by adding or subtracting the number of pulses corresponding to a desired distance to the difference between the reference pulse number corresponding to the reference distance and the pulse number when actually traveling the reference distance. The device is stored as an instrumental error correction value, and when driving for business, the number of business mileage pulses from the internal counter is corrected by the correction value from the instrument M correction value memory, and the fare is calculated and displayed. , it eliminates the need for troublesome correction of instrumental error using conventional dip switches, etc., and has the extremely great effect of being able to correct instrumental error with a simple operation and to freely change the value of the instrumental error correction value. .

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the configuration of the present invention, FIG. 2 is an explanatory diagram of a specific configuration of the present invention, and FIG. 3 is an explanatory diagram showing the relationship between a reference distance and an expected reference distance.

Claims (2)

[Claims] (1) A rotation sensor unit that generates mileage pulses of the equipped vehicle; an internal counter that counts the number of mileage pulses generated from the rotation sensor unit; and a memory that stores a predetermined number of reference pulses corresponding to a set reference distance. a reference pulse memory for displaying; a display circuit for displaying fares, etc.; and a central processing unit that controls the internal counter, the reference pulse memory, the instrumental error correction value memory, and the display circuit, performs necessary calculations, and is connected to the remote control interface. The device is equipped with a reset switch that clears the internal counter, an adjustment switch that instructs the start of calculation of instrumental error correction, and an operation key section that allows you to input necessary values, and is detachably connected to the remote control interface. The remote control device that is used: the difference between the reference mileage pulse number counted by the internal counter when the equipped vehicle travels the reference distance and the reference pulse number, and the addition input to this difference from the remote control device and converted by the central processing unit. It has an instrumental error correction value memory that stores and stores the total number of pulses added to the number of pulses; An electronic taximeter characterized by calculating and displaying a fare. (2) The remote control device has a mode switch, and when the mode switch is pressed once, manual input is enabled from the operation key section, and when pressed twice, it becomes a multiple set mode,
2. The electronic taximeter according to claim 1, wherein the electronic taximeter is capable of performing instrumental error correction when traveling an integer fraction of a reference distance.