JPS5875019A - Course guide display to be mounted on vehicle - Google Patents

Abstract

PURPOSE:To display the current position of a car itself with a position display mark, by providing fixedly the position display mark corresponding to the current position of the car itself on a projection screen and turning and moving a map, which is projected onto the projection screen, on a basis of detection signals of a direction sensor and a speed sensor. CONSTITUTION:In case that the user travels from a city A to a city B by an automobile for riding, a small block region 4d of a map including the city A is selected and is projected onto a projection screen 1. A microfiche 4 is moved in X and Y directions shown in figure by arrows and a stage 7 is turned in the theta direction shown in figure by an arrow to make the position of the city A and the traveling direction coincident with a position display mark 2. After the automobile is started, the microfiche 4 is moved said X and Y directions and is turned in the theta direction on a basis of detection signals of mounted direction sensor and speed sensor, and thus, the current position and the traveling direction are always displayed by the position display mark 2.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides an on-vehicle tooth guidance display device, in particular a device equipped with a direction sensor and a speed sensor to display, for example, the current position of a moving passenger car on a map projected on a projection screen. In the vehicle-mounted course guidance display device, a position display mark corresponding to the current position of the vehicle is fixedly provided on the projection screen, and the force of the map projected on the projection screen is fixed. This invention relates to an on-vehicle course guidance display device that rotates and moves based on detection signals from the direction sensor and speed sensor so that its current position is displayed by the position display mark. .

The applicant of the present application has installed a direction sensor and a speed sensor so as to sequentially display the travel trajectory of the passenger car on a CRT display, for example, in accordance with the drive, and to display a map in response to the display screen of the display. We have developed and filed an application for an in-vehicle course guidance display device that allows the driver to check the driving position Il by overlapping sheets. However, ■ The driving trajectory display image gI displayed on the display when the screen is exposed to daytime sunlight! ■The map sheet and the display screen are not in close contact with each other and are separated from each other, causing misalignment when viewed from a position other than the front.■A single map sheet is attached. If the current location reaches outside the range of the map while driving, it is necessary to select the corresponding map sheet from among the many map sheets and replace it, which is cumbersome. Contains.

Therefore, the applicant of this application has addressed the above-mentioned drawbacks, especially the above-mentioned (■).

In order to solve the drawback of (1), an in-vehicle Huss lead-in display device is provided, which superimposes and enlarges and projects the travel locus traced by a tracing device and the map recorded on a film onto a projection screen. In order to solve the problem, we prepare in advance a micro film cartridge or a micro film cartridge containing national map information divided into desired block ranges, and use it as needed. We have developed and filed an application for an in-vehicle tooth guidance display device that displays a Prussian map on a display or enlarges it onto a projection screen.

The various in-vehicle course guidance display devices that have already been proposed by the applicant basically race their current position &')) along the road on a map pattern displayed on a display or projection screen. This method has its own characteristics and advantages, and can be expected as a direction for in-vehicle course guidance display devices.However, there are some methods that have already been proposed. In contrast to the above-mentioned so-called tracing method, a method has been considered in which the current position t is displayed by moving and rotating a map pattern displayed on a display or projection screen based on the driver's current position. Depending on the situation, the latter method may be desired.

The present invention has been developed based on the above considerations, and includes position display marks fixedly provided on the projection screen to indicate the current position and direction of travel.
The map pattern projected on the screen is rotated and moved based on detection signals from a direction sensor and a speed sensor so that the current position on the map projected on the projection screen matches the position display mark. The object of the present invention is to provide an in-vehicle course guidance display device that allows users to confirm their current position t. This will be explained below with reference to the drawings.

Fig. 1 is an exploded explanatory view of an embodiment of the vehicle-mounted booth guidance display device according to the present invention. 1 year old 2 @ is an enlarged view of an embodiment of a good fish used in the present invention.
An explanatory diagram for explaining a map recorded in the illustrated miter p.

Figures 4 (A) to C1 are explanatory diagrams for explaining the display mode of the current position in the present invention, and Figure 25 is an explanatory diagram for explaining the basic principle of operation of the present invention. The symbol l is the projection screen, 2I is the position display mark, 3 is the projection magnifying lens, 4 is the microfiche,
4 is a large block area, 5 is a microphone/fish loading section, 6 is a beam guide, 6' is a rotation gear, 7 is a stage, 8
9 is a drive gear, 9 is a rotational drive unit, 10 is a condensing lens, 11 is a light source for a projector, 12 is a reflector, 13 is a road, and 46 to 4i are the large block areas 4'.
Each represents a small block area constituting the area.

First of all, what is the project method for this invention? This will be explained in connection with the embodiment shown in FIG. That is, the light source 1 for the projector
The light from 1 is focused by a reflecting mirror 12 and a condensing lens 10, guided by a light beam guide 6, and irradiated onto the microphone μ-fish 4. A road map (for example, as shown in FIG. 22, which will be described later) is recorded in the micro/micro L4, and an image of the road map is enlarged and projected onto the projection screen 1 via the magnifying lens 3. A position display mark 2 for displaying the current position Ii and the running direction of the vehicle is fixedly provided on the projection scene 1.

E1 In the actual textile example shown in Figure Ij, the above projection screen l
There is also a triangular position indicating mark 2 in the center of the vehicle, and the direction of the apex of the triangular mark indicates the running direction. 1. When the military uniform course guidance display device l of the present invention is actually installed in a car, the projection screen l should be vertical or tilted slightly forward so that the driver can easily see it. In addition, by installing the position display mark 2 so that the apex direction thereof faces upward, it becomes easier for the driver to confirm his/her driving direction and current position. In addition, the micro-fish island loading section 5.5 and the light beam guide 6 are fixed to the stage 7, and the microphone...
Micro&4 is configured to be movable in the directions of arrows X and Y shown in the figure. Therefore, based on the detection signals of the direction sensor and speed sensor, which will be described later, by moving the micro p micro & 4 in the X and Y directions and rotating the stage 7 in the direction of the arrow shown in the figure, the above Move the road map projected on the projection screen l, and match the current position and driving direction on the road map with the position display mark 2. Preface to a detailed explanation of the operation of the present invention 0 Used in the present invention This will be explained in relation to Micro Fish 4ti2m and Figure 3.
For Mike μ Fish 4, the whole country is divided into blocks.

The road map divided into blocks is recorded for each block area (hereinafter referred to as a large block area). An embodiment of the large block area 4' is shown enlarged in FIG.
ing. The embodiment shown in FIG.

Figure 3 shows an l block of road land (50) in Hokkaido.Furthermore, the large boot stock territory 4 is divided into small block areas 4 and 4 as shown in Figure i2 (8).
It is divided into two parts and recorded. In this way, road maps of a plurality of large block areas are recorded on the microfiche 4, covering the whole country.

Next, the display mode projected on the projection screen 1 of the present invention will be explained using, for example, a case where a passenger car is traveling from City A to City B in the map of Hokkaido shown in FIG. 3. Small block area 4 where city A exists on the map before departure
4 is selected and projected onto the projection screen 1. The projected state is illustrated in the fourth position. In the fourth position illustration state, 1 position display mark 2 and city A, which is the place of departure.

The positions and directions do not match. Therefore, by moving the micro-micro 4 in the directions of the arrows X and Y shown in Figure 1 and rotating the stage 7 in the direction of the arrow θ shown in Figure 1, Match mark 2 with the location and direction of travel of City A.

This state is illustrated in Figure 4 (old). After departure.

Based on the detection signals of the mounted direction sensor and speed sensor, the micro micro & 4 moves in the directions of arrows X and Y shown in Figure 21 and rotates in the θ direction, so that the current state is always maintained. For example, the pattern projected on the projection star 5l-yl at the X-marked point on the map illustrated in FIG.
ff (as shown in C1, the current position and driving direction are displayed by the position display mark 2. In this way, the current position while driving is always displayed in the center of the projection screen l, and the driving direction is The projected map pattern is projected while moving and rotating in accordance with the driving so that the direction is also always in a predetermined direction (in this example, the top of the screen).

The driver can confirm his/her current position th and driving direction.

The mode of displaying the current position and traveling direction in the present invention has been described above. In order to display such a display, it is necessary to The detection signals of the sensor (for example, the magnetic azimuth sensor proposed by the applicant in Utility Application No. 56-78992) and the speed sensor are analyzed in a micro pulse processor (the CPU shown in the figure) to obtain the above X and Y. , are driven in the θ direction, and are projected and displayed on a projection screen l by a projector. 'The above direction sensor is a means of detecting the direction based on the magnetic direction, which has already been proposed by the applicant.For the display principle in the present invention, please refer to the above explanation and the above-mentioned ``Magnetic Direction Seven'' etc. Easy by
I think you can understand it, but I will briefly explain it below.
For example, as shown in FIG. 5(8), it is assumed that the current position has moved from point - to point 4, and the running direction at the point is the Y direction, and the running direction at the point number is the 6-& direction. The azimuth angle between the Y direction and the 6-4& direction at this time is
This can be analyzed using azimuth information based on the detection signal of the directional sensor, which is based on the geomagnetic azimuth. It is also clear that the distance ΔV between the points Hatake and & can be analyzed using speed information obtained from a detection signal from a speed sensor. These pieces of information are analyzed by the CPU, and from point 6 to point 6, X, Y,
Drive in the $ direction, that is, the amount of movement ΔX in the X direction
is k・ΔV−θ, Q, and the amount of movement ΔY in the Y direction is k・ΔV−θ.
ΔV aaa a, and the rotation angle in the θ direction is -. In addition.

The above 1 is a predetermined coefficient. In this way 0
For example, by moving and rotating the microfish 4 in the X, Y, and θ directions in response to the travel of a passenger car, all of the displays of the present invention as described above can be performed.

As explained above, according to one aspect of the present invention, a position display mark is fixedly provided on the projection screen to display the current position and direction of the running force, and micro, micro, and By moving and rotating the map pattern projected by a projector using a.

It is possible to provide an in-vehicle course guidance display device that displays its own current position IT.

[Brief explanation of drawings]

] Figure 1 is an exploded explanatory diagram of one embodiment of the on-vehicle course guidance display device according to the present invention, and Figure 2 is an exploded view of an embodiment of the vehicle course guidance display device according to the present invention.
FIG. 3 is an explanatory diagram for explaining the map recorded in the microphone P. Fish shown in FIG. 2. The fourth part C) shows an explanatory diagram for explaining the display mode of the current position in the present invention, and FIG. 25 shows an explanatory diagram for explaining the basic principle of the operation of the present invention. In the figure, l is a projection star, 2 is a position display mark, 3 is a projection magnifying lens, 4 is a micro-fish island, 4' is a large block area, and 5 is a microphone. Loading section, 6 is a light beam guide, d is a rotation gear, 7 is a stage, 8 is a drive gear, 9 is a rotation drive motor, 10 is a condenser lens, 11 is a light source for the projector, 12 is a reflector, 13 is a road , 46 to 44 represent the entire small block area. Patent Applicant: Alps Electric Co., Ltd. Patent Attorney Mori 1) Hirosu 1 Lean Worker ω, 11 Saizrfi 4d Sai4fZl (B) Oki Lean (C) Dosho Shi (A) ? S diagram (+5)

Claims (1)

[Claims] Map information is recorded in an in-vehicle tooth guidance display device equipped with a direction sensor and a speed sensor and displaying its current position on a map pattern based on detection signals from the direction sensor and speed sensor. The robot is equipped with a projector that projects a map on a microfiche onto a projection screen, which is designed to be able to rotate and move in the X and Y directions. There is a position indicator mark indicating the direction, and the above-mentioned My Goo
The fish is rotated based on the detection signal from the direction sensor and moved based on the detection signal from the speed sensor, so that the current position on the map projected on the projection screen matches the position display mark. A single-mount course guide display device, characterized in that it is configured to: