DE2822019A1 - TAXIMETER OR DEVICE FOR DETERMINING THE FARE IN A TAXE - Google Patents

Description

The invention relates to a taximeter, that is to say a device for determining the fare in a taxi according to the distance traveled Distance and the time passed. This taximeter works with an electronic memory for the data on which the calculation is based.

The tariffs on which the calculation is based change from time to time and the taximeter must then be reset each time or the new tariff must be entered in the memory. With mechanical taximeters, at least a gear wheel replaced, with the electronic taximeters an electronic component had to be replaced up to now as well will. This is expensive and cumbersome, the taxi has to be

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-Yes-

whose will be withdrawn from circulation.

In the known devices for determining the fare as a function of the respective tariff according to distance and time the gear ratio will be changed accordingly if the tariff changes. If it's an electronic Taximeter acts, the different tariffs are entered into corresponding data carriers that are attached to the taximeter are interchangeable, in the form of printed or integrated circuits, so-called "dead memories" (memoires mortes), or read only memory.

All these devices have the disadvantage that an organ or component when changing or modifying the tariff must be replaced.

The device according to the invention avoids this disadvantage, ie the replacement of pinions or gears or badges with printed or integrated circuits (the "ROM"), and allows frequent modification of the tariff the parameters of the taximeter without having to change even one element, which means that no specialist work is required substantial time savings are achieved without impairing the accuracy of the result.

The solution to this problem according to the invention consists in the combination, i. H. in the application of a storage circuit,

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which can be modified electronically from the outside, ie a "read / write memory" on the taximeter, in which memory the parameters determining the respective tariff, i.e. data, are entered; this read-write memory

one
is combined with / electrical circuit, ie with a computer that uses the parameters entered in the memory to determine the fare.

It is therefore preferably a taximeter with a microprocessor which is held together with a read / write memory is, in which the currently valid taxi tariff is entered.

An exemplary embodiment is described below with reference to the schematic drawing, which is a simple block diagram the device shows.

The device shows a “memoire vive” 1, that is to say a read-write memory. The memory 1 is fed by a relatively weak battery 2. By a voltage regulator 3 is the Supply voltage kept constant.

This arrangement, that is to say memory 1, battery 2 and voltage regulator 3, is or are connected to a logical system 4, a computer, apparently a microprocessor. Similar computers are already in use with electronic taximeters. According to the invention, the computer 4 is with the

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Read / write memory 1 connected. When the tariff is changed, the changed data are entered into the device through an external input device 5, that is to say through a peripheral input device. As indicated in the drawing, the data flow runs from the input device 5 via the computer 4 into the memory 1. The external organ or device 5 is also called a "programmer", so to speak the taximeter, ie the memory 1, is always "programmed" anew. , more precisely, the new data is entered. This means that the taximeter can be instantly ^{adjusted to a new i} arif. The setting for the electronic taximeters is extremely simple and easy to use.

The electronic components mentioned, in particular memories, are already known in various electronic fields. According to the invention, they are applied to an electronic taximeter.

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Claims (3)

Claims (lj electronic taximeter, with an electronic computer for determining the fare according to time and distance according to the tariff or tariff data, characterized in, that the computer is combined with a read-write memory (l) is, in which new or changed tariff data can be entered by means of a peripheral input device (5). 2. Device according to claim 1, characterized in that that a read-write memory (l) with low power consumption is connected to a logical system which exchanges information by means of an external organ external organ entered the parameters determining the new tariff are. 809850/0679 3. Apparatus according to claim 1 or 2, characterized in that the read-write memory (l) (memoire vive) of one relatively weak battery (2) is fed, wherein a voltage regulator (3) is provided. 809850/0679