JP2002298165A - Car navigation device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a car navigation device with a simple configuration which is suitable for business vehicles such as a taxi. SOLUTION: This car navigation device has an additional taxi meter function indicating a taxi meter screen including a first display area 30 for indicating the fare, etc., and a second display area 40 for selecting the mode by using the configuration of a regular car navigation device comprising a GPS unit 10, an acceleration sensor 11, a control unit 14, a vehicle speed pulse 19, a display unit 16 and a speaker 18.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a car navigation system, and more particularly to a car navigation system suitable for a business vehicle such as a taxi.

[0002]

2. Description of the Related Art GPS (Global Positioning System)
m: satellite positioning system) is a system composed of 24 artificial satellites (communication satellites) launched by the U.S. military in geosynchronous orbit, a control station on the ground, and a user's mobile station. By measuring the distance between the mobile station and three or more satellites, the position of the mobile station on the plane can be known. If four or more satellites are used, the three-dimensional position can be measured accurately. is there. The distance between the satellite and the mobile station is calculated based on the time required for the radio wave to reach the mobile station from the satellite. This GPS is
It is widely used for surveying for creating maps, earthquake prediction by precise measurement of crustal deformation, navigation systems for aircraft or ships, and the like. In particular, car navigation devices combined with map data (map information) using a CD-ROM are rapidly becoming popular because they are relatively small and inexpensive.

A conventional car navigation system uses the above-described GPS, an acceleration sensor, a speed pulse from a vehicle, and the like to determine the position of the own vehicle, displays it together with map data, and compares it with a previously searched route. Guide the vehicle to the destination. In such a conventional car navigation device, a function of displaying a traveling distance and an elapsed time from a designated point is well known. The time, speed, running distance, and the like are obtained from a microcomputer or a CPU (central processing unit) built in the car navigation device.

FIG. 4 is a block diagram showing a configuration of a typical conventional car navigation device. This car navigation device includes a GPS unit 10, an acceleration sensor (gyroscope) 11, a ROM (read only memory) disk player unit 12, a signal processing / image processing unit 13, a control unit (microcomputer) 14, an operation unit (key / Remote control) 15, display unit 16, amplifier 17, and speaker 1
8. GPS unit 10, acceleration sensor 1
1. ROM disk player unit 12, control unit 14, display unit 16 and amplifier 17 are a signal processing / image processing unit 13
Connected to. The signal processing / image processing unit 13 receives a vehicle speed pulse 19 from a vehicle equipped with the car navigation device. The control unit 14 receives an operation signal from the operation unit 15, outputs a player control signal to the ROM disk player unit 12, and exchanges a data processing control signal with the signal processing / image processing unit 13. The ROM disk player section 12 outputs map data to the signal processing / image processing section 13.

In the car navigation device shown in FIG.
The GPS unit 10 obtains absolute position information of a vehicle that is a mobile station. Further, as auxiliary information, speed and travel distance information are obtained from the vehicle speed pulse 19, and posture and direction information of the vehicle are obtained from the acceleration sensor 11. In this way, the exact position of the vehicle is recognized. Further, based on these data or information, the signal processing / image processing unit 13 performs necessary processing and displays a map image (road map) and a car navigation (car navigation) image including current position information on the display unit 16. The audio output from the signal processing / image processing unit 13 is output from the speaker 18 via the amplifier 17. The car navigation image and the speaker 1 on the display unit 16
The voice output from 8 guides the driver of the vehicle to the destination input in advance, and assists driving.

[0006]

Some commercial vehicles such as taxis are equipped with such a car navigation device.
However, such a vehicle is also provided with a so-called taxi meter for calculating and displaying a fee or the like, and there is a problem that the dashboard of the vehicle is crowded if both are provided.

[0007]

SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a car navigation apparatus which eliminates the congestion of a dashboard in view of the above-mentioned problems of a conventional business vehicle such as a taxi.

[0008]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention is a car navigation device employing the following characteristic configuration.

(1) A car navigation system which is mounted on a vehicle and includes a GPS unit for obtaining position data, an acceleration sensor for obtaining vehicle acceleration, a vehicle speed pulse, a ROM disk player unit for obtaining map data, and a display unit. According to the traveling distance, traveling speed and elapsed time,
A car navigation device having a taxi meter function of calculating a "fee" based on a predetermined formula and displaying a taxi meter screen on the display unit.

(2) The car navigation device according to (1), wherein the display section can selectively display the taxi meter screen and the car navigation screen based on the map data.

(3) The display section has a first display area for displaying a fee and the like and a second display area for selecting a mode when the taxi meter screen is displayed.
Car navigation equipment.

(4) The taxi meter screen is switchable between a “rent running” mode for adding and displaying a fee and a “payment” mode for displaying information at the time of paying the fee, as described in the above (1), (2) or (2). 3) Car navigation device.

(5) The car navigation device according to (4), wherein in the "payment" mode, the number of persons and the amount obtained by dividing the fee by the number of persons are displayed.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The construction and operation of a preferred embodiment of a car navigation device according to the present invention will be described below in detail with reference to the accompanying drawings.

First, FIGS. 1 and 2 show an example of a "taximeter screen" displayed on a monitor display screen by the car navigation device according to the present invention. The present invention is a car navigation device applied to a business vehicle such as a taxi. FIG. 1 is a display example of a taxi meter screen in a “pay” mode, and FIG. 2 is a display example of a taxi meter in a “pay” mode. The configuration of the car navigation device is basically the same as the configuration shown in FIG.
The monitor display screen 20 has a first display area 30 and a second display area 40. The first display area 30 includes a first display unit 31, a second display unit 32, a third display unit 33, a fourth display unit 34, and a fifth display unit 35. Also,
The second display area 40 is provided below the first display area 30 and is divided into first to fifth display sections 41 to 45.

A display screen (taximeter screen) 20 in the “rent mode” mode shown in FIG.
"Running" is displayed on the first display unit 31 of the second display unit 3
“Supplement” is displayed in 2. “Fee” is displayed on the third display unit 33, and in FIG.
0 yen is displayed. The fourth display section 34 is a section for displaying, for example, a "number of persons" and a "charge per person", and is not displayed in the "pay" mode. Fifth display unit 35
Indicates the presence / absence of “combined use of time and distance” and “current time”. On the other hand, the second display area 40 displays various modes, the first display 41 is "pay", the second display 42 is "interrupted", the third display 43 is "mode setting", and the fourth display. The unit 44 displays "navigation screen" and the fifth display unit 45 displays "taxi OFF". These second
The mode selection of each of the display sections 41 to 45 of the display area 40 can be selected by a key or a remote control from the operation section 15, but can be selected by a user with a finger or the like as a well-known touch panel. is there.

FIG. 1 shows a “taximeter screen” which is open in the “rent mode” mode and the “time and distance use” mode. These modes can be set / changed by selecting “mode setting” on the third display unit 43 in the second display area 40 and operating the unit 15 in FIG.
Key or remote control. “Supplement” on the second display unit 32 is automatically activated and displayed, for example, when the current time on the fifth display unit 35 is, for example, a time period from 23:00 to 5:00. On the other hand, when the customer arrives at the destination and pays the fee, the first display section 41 of the second display area 40 is required.
Select "Payment". To change from the “taximeter” mode to a normal car navigation image, the “navi screen” on the fourth display unit 44 is selected. The “taxi OFF” on the fifth display unit 45 is selected, for example, when the driver is waiting for a customer or when the business is suspended for rest or the like.

When the "payment" mode is selected on the monitor display screen of FIG. 1, a "taximeter screen" as shown in FIG. 2 is displayed. As an example of this case, “Payment” is displayed on the first display unit 31 of the first display area 30 and the second display unit 3
2, “Supplement” is displayed on the third display unit 33, “660 yen” is displayed on the third display area 34, “number of persons divided by 3” and the charge per person “220 yen”, and “Fare” is displayed on the fifth display unit 35. "Distance discount" and "current time" are displayed. This indicates that the fee of 660 yen is divided by three people and is 220 yen per person.
When the payment is completed and the customer is waiting (or empty), the second
When "taxi OFF" on the fifth display section 45 of the display area 40 is selected and a passenger is put in the vehicle, the first display section 41 is displayed.
Select "Rental".

The operation of the car navigation system according to the present invention will be described below with reference to FIGS. 1, 2 and 4.
When the user selects the "taximeter" function, the "taximeter screen" shown in FIG. 1 is displayed on the monitor display screen (for example, the display unit 16 in FIG. 4). Therefore, GPS unit 1
The running distance, running speed and elapsed time obtained from 0 and the vehicle speed pulse 19 are taken into the microcomputer of the control unit 14. Then, the control unit 14 displays the addition result as a charge value on the third display unit 33 of the first display area 30 every time the addition condition is satisfied in accordance with a preset calculation table (calculation formula).

Next, an example of a condition for adding a charge value will be described. * From the start of addition to the mileage of 2 km: 660 yen (initial fare) * If the distance exceeds 2 km, every additional 274 m: 80 yen will be added. (Time distance combined) * From 23:00 to 5:00: 30% extra (midnight and early morning extra) * For amounts exceeding 9000 yen: 1 discount

The processing operation under the above conditions will be described with reference to the flowchart of FIG. "Calculated value" of charge = (6
60 + n × 80) ×. The time timer for addition is
At the start of the timer, 1 is subtracted every second, and the adding distance monitor subtracts 1 every 1 m of travel.

First, "1" is set to n = 0. Third display section 33 in first display area 30 of monitor display screen 20
"660", which is the "calculated value", is displayed as the fee.
“Rent” is displayed on the first display unit 31 (step S
1). Next, it is determined whether the current time is after 23:00 and before 5:00 (step S2). The current time is 23:00
Thereafter, if it is before 5:00 (step S2: YES), “extra” is displayed on the second display section 32 of the first display area 30, “192” is set on the addition distance monitor, and addition is performed. Set “70” in the time timer for use (step S
3). Here, “192” is 70% of 274,
“70” is 70% of 1 minute and 40 seconds (that is, 100 seconds), and indicates a unit distance and a unit time to which a “surcharge” of 30% is applied, respectively. If the current time is after 23:00 and not before 5:00 (step S2: NO), “274” is set and “100” is set (step S4). Next, it is determined whether the traveling speed is equal to or less than 10 km (step S5). If it is 10 km or less (step S5: YES), the timer for adding time is started, and if it has already been started, the operation of the timer is continued (step S6). And = 0 or = 0
Is determined (step S7).

On the other hand, when the speed exceeds 10 km / h (step S5: NO), the addition time timer is stopped,
Is set (step S8). Then, it is determined whether or not = 0 (step S9). If step S7 or step S9 is NO, the process returns to step S5. If YES in step S7 or S9, n = n + 1 is set (step S10). Next, a new "calculated value" of the "fee" is displayed, and a sound effect (for example, "p", "tick", etc.) indicating that the "fee" has changed is output from the speaker 18 (step S11). Then, the above-described step S2
Return to

Here, the operation based on the above-mentioned flowchart is interrupted when the user selects the “payment” mode on the first display section 41 of the second display area 40. Then, the calculated value at that time is “charge”, which is displayed on the third display unit 33 of the first display area 30. If the calculated value of the “fee” is less than 9000 yen, the calculated value is displayed as it is as a “fee”. On the other hand, the calculated value is 900
In the case of 0 yen or more, the “long-distance discount” is applied, and one discount of the calculated value is applied (that is, the above-described “calculation formula” is reduced by 0.9%).
) Is calculated and displayed as "charge".

The second display area 4 on the display screen 20
By instructing the “interruption” mode of the second display unit 42 of “0”, it is also possible to temporarily suspend the “charge” accumulation operation. When "interrupt" is instructed, "resume" is displayed on the second display section 42, so that the user may instruct this "resume" to continue adding (or multiplying) the "fee". It is possible. For example, it is also possible to instruct “restart” by turning off the engine of a running vehicle and then turning on the engine thereafter.
This can be used in the event of vehicle refueling or accidents.

The configuration and operation of the preferred embodiment of the car navigation device according to the present invention have been described above in detail. However, such embodiments are merely exemplary of the invention,
It does not limit the invention in any way. It will be readily apparent to those skilled in the art that various modifications and changes can be made in accordance with the particular application without departing from the spirit of the invention. For example, in the preferred embodiment described above, the first
Although the display area 30 and the second display area 40 are provided, these two display areas 30 and 40 may be separate display devices. For example, the second display area 40 may be a plurality of push button switches or the like arranged below the display panel having the first display area 30.

[0027]

As will be understood from the above description, the car navigation system according to the present invention has the following remarkable practical effects. That is, by adding a taxi meter function together with a normal car navigation function, it is possible to eliminate the need for a taxi meter. In addition, the configuration of a conventional car navigation system can be used as it is for implementing the present invention, and can be realized at low cost. Further, in a payment mode or the like that is not provided in a conventional taxi meter, a fee obtained by dividing a fee into a plurality of passengers can be calculated and displayed.

[Brief description of the drawings]

FIG. 1 is a display example of “taxiing” on a taxi meter screen by a car navigation device according to the present invention.

FIG. 2 is a display example at the time of “payment” on a taxi meter screen by the car navigation device according to the present invention.

FIG. 3 is a flowchart illustrating an example of a fee calculation of the car navigation device according to the present invention.

FIG. 4 is a block diagram showing a configuration of a typical car navigation device to which the present invention can be applied.

[Explanation of symbols]

 Reference Signs List 10 GPS unit 11 Acceleration sensor 12 ROM disk player unit 13 Signal processing / image processing unit 14 Control unit 15 Operation unit 16 Display unit 18 Speaker 19 Vehicle speed pulse 20 Monitor display screen (taximeter screen) 30 First display area 40 Second display region

Claims (5)

[Claims] 1. A GPS mounted on a vehicle to obtain position data
A car navigation device including a unit, an acceleration sensor for obtaining vehicle acceleration, a vehicle speed pulse, a ROM disk player unit for obtaining map data, and a display unit, wherein a predetermined calculation is performed according to the running distance, running speed and elapsed time of the vehicle. A car navigation device having a taxi meter function of calculating a "fee" based on an equation and displaying a taxi meter screen on the display unit. 2. The car navigation device according to claim 1, wherein the display unit can selectively display the taxi meter screen and a car navigation screen based on the map data. 3. The taxi meter screen according to claim 1, wherein the taxi meter screen has a first display area for displaying a fee or the like and a second display area for selecting a mode. Car navigation equipment. 4. The taxi meter screen is switchable between a “rent running” mode for adding and displaying a toll and a “payment” mode for displaying information at the time of paying a toll. 4. The car navigation device according to 3. 5. The car navigation apparatus according to claim 4, wherein in the “payment” mode, the number of persons and the amount obtained by dividing the fee by the number of persons are displayed.