CN201397143Y

CN201397143Y - Taximeter based on GPS and electronic geographic information

Info

Publication number: CN201397143Y
Application number: CN 200920033031
Authority: CN
Inventors: 刘珉恺
Original assignee: Xian Xinwei Information Technology Co Ltd
Current assignee: Xian Xinwei Information Technology Co Ltd
Priority date: 2009-05-11
Filing date: 2009-05-11
Publication date: 2010-02-03
Anticipated expiration: 2019-05-11

Abstract

The utility model relates to a taximeter, in particular to a taximeter based on GPS and electronic geographic information. The taximeter is characterized in that the taximeter comprises a GPS unit, amemory for storing geographic position information, a processor, a display and a printer. The processor is connected with the serial port of the GPS unit. The processor is electrically connected withthe memory for storing the geographic position information and the display through an address wire, a data wire and a control I/O port. The processor is electrically connected with the printer throughan interface. A 12V battery cell voltage supplied by the taxi supplies power for the GPS unit, the memory for storing the geographic position information, the processor, the display, and the printerthrough a transformation circuit. The GPS unit, the memory for storing the geographic position information, the processor, the display, the printer and the power supply are fixed in the casing. The utility model has the advantages that the taximeter is accurate to measure mileage, and can determine the mileages of a plurality of ways from starting position to destination in advance.

Description

Taxi meter based on GPS and electronic geographic-information

Technical field

The utility model relates to a kind of taximeter, particularly a kind of taxi device based on GPS and electronic geographic-information.

Background technology

Existing taximeter all is to utilize the sensor vehicle wheel rotational speed, carries out mileage calculating by processor and finally provides the valuation result.By the sensor vehicle wheel rotational speed is to provide an electric pulse with wheel one circle, and the girth by wheel converses speed then.If wheel is determined constant, the speed that then provides is very accurate in theory.Yet taximeter is unified when mounted the calibration, and operation does not then detect.Therefore, by changing wheel diameters, be the valuation that provides very easily greater than actual mileage.Secondly the wheel long term wear also can produce the valuation result who exceeds actual mileage.

Moreover; problem that can't change of existing taximeter is that the departure place is to nearer road of how many bars and their mileage are arranged between definite destination; can't know before travelling; owing to quarrel because of travel route between passenger and the driver, cause unnecessary contradiction through regular meeting.

Summary of the invention

The purpose of this utility model provides and a kind ofly valuates accurately, can determine the taxi meter based on GPS and electronic geographic-information of departure place to the mileage of many roads between the destination in advance.

The technical solution of the utility model is this realization, design a kind of taximeter of the taxi driving range metering method based on GPS and electronic geographic-information, it is characterized in that: comprise the GPS unit, the memory of storage geographical location information, processor, display and printer, processor is connected with GPS unit serial ports, processor passes through address wire, data line and control I/O mouth are electrically connected with the memory and the display of storage geographical location information, processor is electrically connected with printer by interface, the 12V battery voltage that taxi provides offers the GPS unit by change-over circuit, the memory of storage geographical location information, processor, the power supply of display and printer, the GPS unit, the memory of storage geographical location information, processor, display, printer and power supply are fixed in the housing.

The utility model has the advantages that: since the GPS location technology have the repeatable accuracy height, with the irrelevant characteristics of vehicle self physical property, and can provide point-device GPS driving path mileage information through the geographical location information of GPS location technology and the prior mapping of advanced surveying and mapping technology, therefore, the utlity model has accurate measurement and can determine the advantage of departure place in advance to the mileage of many roads between the destination.

Description of drawings

The present invention will be further described below in conjunction with the embodiment accompanying drawing:

Fig. 1 is the utility model embodiment 1 structural representation;

Fig. 2 is the utility model embodiment 2 structural representations;

Fig. 3 is the utility model embodiment 3 structural representations;

Fig. 4 is that taxi can provide the display interface of display 1 that the passenger arrives the different route selections of destination before travelling;

Fig. 5 is the utility model embodiment circuit block diagram;

Fig. 6 is the printer output inventory synoptic diagram that travels.

Among the figure, 1, display; 2, travel route; 3, taxi; 4, current state shows; 5, barrier; 6, GPS unit; 7, processor; 8, geographical information library; 9, power supply; 10, printer; 11, input block; 12, memory.

Embodiment

Embodiment 1

When the taxi that this taximeter is installed travels on the figure line at Fig. 1, after sailing from A point initial row, processor constantly detects the GPS geography information that the departure place A that hires a car orders and the each point such as the B in taxi driving process path, C, D, the GPS geography information of E, all geographical location information on the taxi travel route are stored in the memory cell 12 in advance, these geographical location information comprise in advance by GPS and plotting board mapping, find out the actual travel route title and the title of vital point by the geography information that Current GPS provides by geographical location information, can calculate the each point such as the B in driving process path by the geographical location information in the memory 12, C, D, the actual mileage of E.Owing to be subjected to the influence (relatively poor precision is about 10 meters) of the GPS measuring accuracy that we use; rely on the GPS measurement distance of travelling to occur bigger error in some cases fully; as the disk position among Fig. 1; C point and D point geography information might be that GPS measures not come out; therefore; the taxi driving path provides track by GPS, and actual result restores the actual mileage of geographical location information of storage by processor 7 according to driving trace, can overcome these problems fully.As when setting up electronic geographic positional information storehouse, can set up the actual mileage database of high precision fully by GPS and high-precision plotting board.As long as provide the route track, converse the concrete mileage information of actual geographical location information such as circuit, complicated circuit (the disk position among Fig. 1) by the GPS geography information of the starting point of route track and end point such as longitude, longitudinal, latitude, latitude direction.

Embodiment 2

Certainly because the influence of GPS measuring accuracy; under the situation of Fig. 2; the tune of taxi at the crossing also can influence measures actual mileage result; in this case, processor 7 is as long as also can be conversed the mileage information of reality by the route track by the geographical location information storehouse of taxi travel route track and memory 12 storages.

Embodiment 2

Situation among Fig. 1 and Fig. 2 occurs in the city mostly.And fine in line conditions, the GPS measuring accuracy improves (dipper system as China's exploitation is used the back), relies on the GPS geography information constantly to carry out accumulation calculating fully, cooperates geographical location information all travel routes of can having the records of distance by the log.As shown in Figure 3, as on the route of running at high speed, road is straight, and it is fully passable then constantly carrying out accumulation calculating with the GPS geography information.

Fig. 4 is that the present invention can provide the display 1 that different travel routes 2 that the passenger arrives the destination select before taxi 3 travels a current state shows 4.After providing the passenger by input block 11 as touch screen circuitry or speech recognition circuit and arriving the destination, display 1 demonstrates can be by two circuits to the destination from departure place A, one through A, B, C to D.Another by A, E, F to D.Two lines are more or less the same, but the second circuit relatively easily travels, and article one circuit has a barrier 5, is not easy to travel, often traffic congestion.When passenger loading explanation arrival address, display 1 route that will block up is shown to the passenger with one on another road and is selected by it.Owing to have GPS unit 6 and geographical information library 8 to support, therefore greatly make things convenient for the passenger.

Fig. 5 is a basic circuit configuration circuit block diagram of the present invention.As shown in Figure 5, taximeter based on the taxi driving range metering method of GPS and electronic geographic-information, it is characterized in that: comprise GPS unit 6, the memory 12 of row storage geographical location information, processor 7, display 1 and printer 10, processor 7 is connected with GPS unit 6 serial ports, processor 7 passes through address wire, data line and control I/O mouth are electrically connected with the memory 12 and the display 1 of storage geographical location information, processor 7 is electrically connected with printer 10 by interface, the 12V battery voltage that taxi provides offers GPS unit 6 by change-over circuit, the memory 12 of storage geographical location information, processor 7, the power supply 9 of display 1 and printer 10, GPS unit 6, the memory cell 12 of storage geographical location information, processor 7, display 1, printer 10 and power supply 9 are fixed in the housing.Its different printer 10 that increased with existing vehicle navigator.Just on existing vehicle navigator basis, be equipped with printer 10 and just can realize all hardware function of the present invention.Compare with existing taximeter, saved vehicle speed sensor, made things convenient for installation and maintenance.

Fig. 6 is a printer output result schematic diagram of the present invention, prints in the inventory to comprise departure place and destination.Departure place and destination can be longitude, longitudinal, latitude, latitude directional information, also the line information and the information of place names that convert of longitude, longitudinal, latitude, latitude direction.The distance of these message reflections can be checked by the professional website online.Have true unmodifiable characteristics, faking easily with existing taximeter forms obvious contrast.

In instructions of the present invention, mention geography information and geographical location information has differentiation, geography information comprises longitude that GPS orders, longitudinal, latitude, latitude directional information etc., and it directly receives the processing circuit processes of a plurality of satellite signal information through GPS unit 6 by GPS unit 6 and obtains.Geographical location information be by GPS and high-precision plotting board through the omnibearing geographical location information data storehouse that mapping obtains, it comprises the positional information of being had a few.Can obtain the detail location information of current point by the geographical location information storehouse by any longitude, longitudinal, latitude, latitude directional information.

Claims

1, taxi meter based on GPS and electronic geographic-information, it is characterized in that: comprise GPS unit (6), the memory (12) of storage geographical location information, processor (7), display (1) and printer (10), processor (7) is connected with GPS unit (6) serial ports, processor (7) passes through address wire, data line and control I/O mouth are electrically connected with the memory (12) and the display (1) of storage geographical location information, processor (7) is electrically connected with printer (10) by interface, the 12V battery voltage that taxi provides offers GPS unit (6) by change-over circuit, the memory (12) of storage geographical location information, processor (7), the power supply (9) of display (1) and printer (10), GPS unit (6), the memory (12) of storage geographical location information, processor (7), display (1), printer (10) and power supply (9) are fixed in the housing.