JPH0315714A - Current position display device for moving body - 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] Nagahige Kinjuku The present invention provides the current position r of a moving object! This invention relates to a device for displaying the current position of a moving object, which displays the current position of the moving object on a road P8 map displayed on a screen in advance while calculating i. Recently, when driving a moving vehicle such as a car in an unfamiliar area, for example, in order to provide appropriate guidance to the driver so that the driver does not deviate from the planned course and get lost, improvements have been made to the vehicle. As it travels, the distance and direction of movement of the moving object are detected using a distance sensor and a direction sensor, and the cursed position haze on the two-dimensional coordinates of the moving object is determined by cumulative calculation, and its movement is calculated. By displaying the current location, which changes moment by moment as the vehicle moves, on a road map that is projected on the screen in advance and updating it with point information, the driver can now confirm the current location. A device for displaying the current position of a moving object has been developed. Conventionally, in the current position display device of this type of moving object,
The road map is projected on the screen so that the northern direction is at the top of the screen, so when a moving object is moving south toward the bottom of the screen (including diagonally downward), as shown in Figure 6, Sometimes I have a momentary lapse in deciding whether to turn right or left at an intersection. In other words, in the screen display state shown in Figure 6, when you want to turn right at an intersection, it looks like you have to operate the steering wheel to turn left. I] The present invention was made in consideration of the above points, and when displaying the current position of a moving object on a road map displayed on the screen so that the north direction is at the top of the screen, the present invention is To provide a current position display device for a mobile object that allows the user to easily judge whether to turn right or left at an intersection even when the object is moving south toward the bottom of the screen.
DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will now be described in detail with reference to the accompanying drawings.

Figure 1 shows the basic configuration of a current position display device for a moving object according to the present invention, and shows a distance sensor l that outputs a pulse signal for each unit traveling distance according to the rotation of the tires of the moving object.
A direction sensor 2 uses a rate type that detects the angular velocity of a change in one direction and outputs a signal proportional to the amount of change in direction as the moving object moves, and a distance sensor 1 counts the number of pulse signals and moves. The distance traveled by the body is calculated as ΔIII. A first arithmetic processing unit (microcomputer) that cumulatively calculates the current position of the eight moving objects on the X-Y coordinates for each fixed travel distance by calculating the direction of movement according to the output signal of the direction sensor 2;
3, a traveling trajectory storage device 1t that sequentially stores data on the current position that changes every moment as the moving object travels, and stores and holds it as finite continuous position information of the moving object! 4, a map information storage medium 5 in which road map data is stored in advance, a storage medium reproducing device 6 for selectively reading out map data from the storage medium 5, and a map information storage medium 5 that selectively reads out map data from the storage medium 5; , a display device 7 that displays the current position of a mobile object on a road map projected on a screen with the north direction facing upward on the screen, along with the moving direction and traveling trajectory of the mobile object at the current position, and the display device 7 A display control device [(MMI) 8 and . Display device Fl 7 4: Displays a route map, selectively gives commands to display the driving trajectory, etc., moves the map displayed on the screen, rotates the driving path, etc.
An operation device [9] that allows you to appropriately change display format settings such as selection of display scale, and an operation device that determines the traveling trajectory of the moving object based on the data of the traveling trajectory and the data of the road map displayed on the screen. Current position data calculated by the first arithmetic processing unit so that the current position of the mobile object is displayed on the matched road by performing matching processing of each pattern with the road on the map. A second arithmetic processing unit (microcomputer) 10 that corrects
I'm being manipulated by this. Note that the display control device [8 displays the road map and the current position of the moving object on the screen of the display device 7 based on the data of the road map and the data of the current position, and also controls operations input from the operating device 9. Change the display format of the screen appropriately according to the command. In such a current position display device for a moving object, a predetermined road map is displayed on the display device Ii! At the same time, the first arithmetic processing unit [3 displays images on the X-Y coordinates according to a preset map scale rate according to the movement of the mobile object from the starting point on the map. The current position is calculated moment by moment.

The data of the obtained cursed position is sent to the second arithmetic processing unit [
10, and then sequentially sent to and stored in the travel trajectory storage device 4, where the data is updated as a series of travel trajectory data. Then, in the second arithmetic processing unit 10, a process of matching each pattern between the traveling trajectory of the moving object and the road on the map is executed every certain distance traveled by the moving object, and the matching process is performed for each pattern on the matched road. Data on the traveling trajectory and the current position of the moving body are corrected so that the current position and traveling trajectory match.

The corrected data of the cursed position is given to the display control device 8 together with the data of the currently detected direction, and under its control, the data is displayed on the screen of the display device 7, for example, as shown in FIG. A mark M1 indicating the current position of the moving body and a mark M2 indicating the moving direction of the moving body at the current position are displayed on the road map, and when a command to display the running trajectory is issued, a mark M3 indicating the running trajectory is displayed. A simulated display follows the running state of the moving object. that time,
The mark M1 indicating the current position of the moving object is fixedly displayed in the center of the screen, and as the moving object moves, the road map scrolls as appropriate depending on the direction of travel, and the road map moves on the road on that map. The current position of the moving object is displayed as shown in the figure. In a device for displaying the current position of a moving object that is alerted in this way, the present invention includes an indicator that identifies right and left as seen from the moving direction at the mark M2 in the moving direction of the moving object at the current position. It is characterized by the fact that it takes a means to display it. Specifically, the means for displaying the index for identifying the right and left is executed under control based on a program set in advance in the display control device 8.

In addition, as an index for identifying the right and left, for example,
As shown in Figure 3 (a), the words "Right" and "Left" are displayed on both sides of the mark M2 in the direction of travel, or as shown in Figure 3 (b), the mark in the direction of travel is It is the flag F indicating the right displayed on one side of M2, or . As shown in Figure 3(c), mark M in the direction of travel
The half of 2 may be colored blue or the like to indicate the right side in the direction of travel.

The indicator for identifying right and left may be displayed at all times regardless of the moving direction of the moving object, but it is possible to display the indicator on the screen so that the moving object will not be confused about whether to turn right or left at an intersection. The display may be displayed only when the vehicle is moving south toward the bottom of the map.

In IL terms, the display control device 8 detects that the mark M2 in the direction of travel is facing downward, and then displays an indicator for identifying right and left.

As described above, according to the present invention, when displaying the cursed position of a moving object on a road map projected on the screen so that the northern direction is at the top of the screen, the moving object is moved south toward the bottom of the screen. Even if the moving direction of the moving object displayed on the screen deviates from the sense of the actual moving direction of the moving object, the display state of the screen can be adjusted to make it easy and appropriate to judge whether to turn right or left at an intersection. You will be able to have your child do the same thing.

Further, in the present invention, means is provided for flashing and displaying an indicator that is linked to the turn signal of a moving body and identifies right or left according to the right turn or left turn operation of the turn signal. Specifically, as shown in FIG. 4, the display control device 8 reads the blinker signal RS or LS that blinks the right turn lamp RL or left turn lamp LL in the direction indicator 11 of the moving body, and accordingly reads the blinker signal RS or LS that blinks the right turn lamp RL or left turn lamp LL in the direction indicator 11 of the moving body. Display a flashing indicator to identify the left side. In the figure, WK-SW indicates a turn signal switch, RY indicates a blinker relay, and BAT indicates a vanoteri. At this time, for example, as shown in FIG. 5(a), when a right turn operation is performed using the direction indicator l1, the characters "right" are displayed blinking.

Or, as shown in FIG. 5(b), direction instruction}131
When the left turn operation in step 1 is performed, the mark M in the direction of travel is
Of the right flag FR and left flag FL provided on both sides of 2, the left flag FL is displayed blinking. Alternatively, as shown in FIG. 5(c), when a right turn operation is performed using the direction indicator 1l, half of the mark M2 indicating the direction of travel is colored blue or the like and displayed blinking.

However, in the present invention, by flashing an indicator that identifies right or left according to the right turn or left turn operation of the turn signal, right or left on the road map is displayed.
This makes it easier to confirm the left turn direction. In the device for displaying the cursed position of a moving object according to the present invention, the cursed position of the moving object is displayed on the road map displayed on the screen so that the north direction is at the top of the screen. edge,
By displaying an indicator on the mark that indicates the moving direction of the moving object at the current position, which identifies the right and left sides as seen from the mark of the moving direction, when the moving object is moving south toward the bottom of the screen. However, it has the advantage of being able to easily judge whether to turn right or left at an intersection. Further, in the present invention, by flashing an indicator that identifies right or left according to the right or left turn operation of the turn signal of a moving object, it is possible to easily confirm the right or left turn direction on the road map. It has the advantage of being able to

[Brief explanation of the drawing]

Fig. 1 is a block diagram showing a basic MIt example of the current position display device of a moving body according to the present invention, Fig. 2 is a diagram showing an example of its display screen, and Figs. 3 (a) to (c) are Figure 4 is an electric circuit diagram showing the connection relationship between the direction indicator and the display control device of the moving object; Figure (a
) to (c) are diagrams each showing an example of a mode in which indicators for identifying right and left directions are displayed blinking in response to the operation of a direction indicator of a moving object, and FIG. 6 shows an example of a conventional display state of the screen. This is a diagram. ■...Distance sensor 2...Direction sensor 3...First calculation processing device 4...Travel trajectory storage device 5...Map information storage medium 6...Storage medium reproducing device @ 7...Display Device 8...Display control device 9...Operation @tiI
O...Second arithmetic processing unit [11...Direction indicator M1...Current position display mark M2...Progressing direction display mark M:3...Travel trajectory display mark F, FR, F
L...Flag Figure 3

Claims (1)

[Claims] 1. While detecting the travel distance and traveling direction of the moving object, the current position on the two-dimensional coordinates, which changes every moment as the moving object moves, is calculated sequentially, and the obtained current position is calculated. Map data is read out from the storage medium in advance based on the data of The position display device has a means for displaying the traveling direction of a moving body at the current position by a mark, and a means for displaying an index on the mark portion of the traveling direction to identify right and left as seen from the traveling direction. A current position display device for a moving object, characterized in that: 2. The current position display device for a moving object according to item 1 above, characterized in that an indicator for identifying right and left is displayed only when the moving object is moving south. 3. The current state of the moving object according to the above item 1 or 2, characterized in that an indicator for identifying right or left is displayed blinking according to the right turn or left turn operation of the direction indicator of the moving object. Position display device.