JPH04110722A - Device for displaying position of moving body - Google Patents

Abstract

PURPOSE:To facilitate judgement at a crossing by setting an area, where a light emitting means for directing a direction in front and rear and right and left is lightened, larger than an area showing other directions in a lighting means. CONSTITUTION:A GPS (global positioning system) receiver 8 demodulates the electric wave from an artificial satellite, which is received by an antenna 1, to compute a travelling position (longitude, latitude, altitude, etc.) of a user, and the information thereof is output to a MPU (microprocessor) 10 inside of a computing board 9 per about one second. The MPU 10 collates the information sent from the receiver 8 with the map data memorized in a ROM 11 to compute a traveling position on the map, a lighting position of a light emitting unit 25 or the like. A MPU 16 of a display 3 lighten the light emitting unit 25 located in gauge 4 on the basis of the information sent from the MPU 10. The MPU 16 also sets an area, where a display unit 18 for directing a direction in front and rear and right and left is lightened, larger than an area showing other directions. Judgement at a crossing is thereby facilitated.

Description

[Detailed Description of the Invention] [Object of the Invention] (Field of Industrial Application) The present invention is directed to Global Positioning.
The present invention relates to a mobile body position display device using GPS (hereinafter referred to as GPS).

(Prior Art) Conventionally, as this type of moving body position display device, there has been one that uses an arrow to indicate the direction of the destination of a moving body.

(Problem to be Solved by the Invention) However, in the conventional technology, since the direction of the destination is always displayed accurately, the direction of the destination is often pointed in a direction different from the actual road. Therefore, there is a problem in that it becomes difficult for the user to decide which route to take. Therefore, an object of the present invention is to accurately convey to a user which path he or she should take at an intersection without irritating the user.

[Structure of the invention]

(Means for Solving the Problems) The technical means taken in the present invention to solve the above technical problems are as follows: An antenna for receiving radio waves, and an antenna connected to the antenna to calculate the running position of the user. G.P.
S receiver, a map data holding means for holding map data, a calculation means for calculating a position on the map based on the traveling position and the map data, and storing a destination input in advance by the user. a calculation board comprising a storage means; a calculation means for the calculation means to calculate a direction relative to the destination and the user's running position; a light emitting means for displaying the direction to the destination and the user's running position; In the moving versus position display device, the lighting means has a region in which the light-emitting means pointing in the front, back, left, and right directions is set to be larger than an area in which the light-emitting means pointing in other directions is lit. It is something that exists.

(Operation) The above technical means operates as follows. At intersections, the direction of the destination will be displayed more easily: front, back, left, and right. Because intersections often have roads going forward, backward, left, and right,
It becomes easier to decide which road to take at an intersection.

(Embodiment) Hereinafter, a preferred embodiment to which the present invention is applied will be described with reference to the accompanying drawings.

Fig. 1 is a perspective view of the mobile object position display of this embodiment, Fig. 2 is a block diagram showing the structure of this embodiment, and Fig. 3 shows the direction of the destination and the direction of the direction indicating arrow (relationship). FIG. 4 is a flowchart showing the operation of the moving body position display device of this embodiment, and FIG. 5 is a flowchart showing the direction of the destination and the operation of pointing the direction arrow toward the destination.

This will be explained with reference to FIGS. 1 and 2. The mobile object position display device of this embodiment has an antenna 1 and an Electric C
It is equipped with an ontrol unit (hereinafter referred to as ECU) 2, a display 3, a gauge 4, and a remote control 5. These devices 1.2.3.4, except for the remote control 5, are supplied with power from the vehicle's battery 7 through the ignition switch 6.

The ECU 2 includes a GPS receiver 8 and a calculation board 9. G
The PS receiver 8 demodulates the radio waves received from the artificial satellite by the antenna 1 and calculates the user's traveling position (latitude, longitude, altitude, etc.). The information is sent to the microprocessing board built into the calculation board 9 approximately every second.
It is sent to Unit (hereinafter referred to as MPU) 10.

Arithmetic board 9 is MPUIOlROMI L RAM12
, a power supply unit 13, and an input/output I/F 14.15. R.O.
The MII holds map data, including the latitude, longitude, and scale of the map origin. The RAM II stores the coordinates of the destination input by the user. MPU
8 compares the information sent from the GPS receiver 8 with the map data stored in the ROMII, calls up the map data that includes the user's driving position, calculates the driving position on the map, and activates the light emitting unit 25. It calculates the lighting position and the direction of the destination. The power supply section 13 is supplied with power from the battery 7, and supplies power to each circuit of the calculation board 9. Input/output I/F 14 is GPS
It is installed between the receiver 8 and MPU10, and the input/output I
/F 15 is installed between the MPU 10 and the MPU 16 installed inside the display 3.

The display 3 includes an MPU 16, a remote control processing section 17, a display section 18, a driver 19, a power supply section 20, and an input/output section 17F2.
1.22. The MPU 16 lights up the light emitting section 22 installed in the gauge 4 according to the information sent from the MPU10. Furthermore, when the user inputs a destination from the remote controller 5 on the display section 18, the MPU 16 inputs the information to the MPU 10 according to the information sent from the MPU 10.
0. The display unit 18 displays information that has been input by the user in advance, as well as the number of the destination input mode in which the destination to be input is input, the remaining distance to the destination, the altitude of the driving position, the satellite reception status, the map number, It displays a map page, the direction of the destination, and the north direction relative to the driving position. The remote control processing section 17 is used by the user to input a destination using the remote control 5. The power supply section 18 is an EC
Power is supplied from a power supply 13 in U2, and supplies power to each circuit in the display 3 and gauge 4. Input/output 1/F 19 is installed between MPU10 and MPU16. The input/output 1/F20 is installed between the MPU 16 gauge 4 and the driver 21.

Gauge 4 is input/output 1/F23, driver 24, light emitting part 2
5. The input/output I/F 23 is installed between the MPU 16 and the driver 21. The light emitting unit 25 includes a plurality of light emitting diodes 26 that indicate the running position in the horizontal direction of the map (in most cases, the longitude direction), and a plurality of light emitting diodes 26 that indicate the running position in the vertical direction of the map (in many cases, the longitude direction is shown). A plurality of light emitting diodes 27 are provided.

When inputting a destination, the user uses the remote control 5 to move the light emitting diodes 26 and 27 to the desired destination on the map and input the destination.

Next, the operation when the arrow indicates the direction of the next destination relative to the user's traveling position will be explained with reference to FIGS. 3, 4, and 5.

In Fig. 3, in this example, 36o° is divided into 40° in four directions (front, back, left and right), and the remaining eight directions are divided into 12 at intervals of 25°.
12 arrows are used to indicate the direction of the next destination.

Referring to FIG. 4, the operation of calculating the direction of the destination in this embodiment to which the present invention is applied will be explained.

Initialization is performed in step Sl. GP at step s2
Determine whether data from the satellite has been input from the S receiver 8 to the MPU10, and if it has been input (YES), step S
In step 3, the MPU10 searches for a map including the user's driving position based on the map data input into the ROMII. In step S4, the MPU10 calculates the driving position on the map that includes the driving position. Step S
MP the direction of the destination that the user has entered in advance in step 5.
Ul0 is calculating. Further, step S5 will be explained in detail later. In step S6, the data obtained as described above is output to the display 3 and gauge 4.

Referring to FIG. 4, a description will be given of determining the direction of the next destination relative to the user's traveling position and displaying the determined direction on the display 3. Based on the data sent from the GPS receiver 8 and the data input to the ROMII and RAM 12, the MPU10 calculates the angle of the destination direction with respect to the driving direction, with the front in the driving direction set as 0 and the clockwise rotation as positive. . In step 310, it is determined whether the angle D calculated by MPU10 is 206 or less. 20° or less (YE
S), the direction is determined to be l in step Sll, and is sent to the MPU 16 built in the display 3. MPU
16 lights up an arrow indicating direction 1 on the display section 17. 2
If the angle is 0° or more (No), the process advances to step S12.

In step 312, it is determined whether the angle D calculated by MPU10 is 45° or less. 45° or less (YES)
If so, direction 2 is determined in step S13 and sent to the MPU 16 built in the display 3. MPU16
turns on the arrow indicating direction 2 on the display section 17. 45°
If this is the case (No), the process advances to step S14.

In step S14, it is determined whether the angle D calculated by MPU10 is 70° or less. 70' or less (YES)
If so, direction 3 is determined in step S15 and sent to the MPU 16 built in the display 3. MPU16
lights up the arrow indicating direction 3 on the display section 17. 70'
If this is the case (No), the process advances to step S16.

In step S16, it is determined whether the angle D calculated by MPU10 is 110° or less. 11O° or less (YE
S), direction 4 is determined in step S17 and sent to the MPU 16 built in the display 3. MPU
16 lights up an arrow indicating direction 4 on the display section 17. 1
If it is 10° or more (No), the process advances to step 518.

In step S18, it is determined whether the angle D calculated by MPU10 is 135° or less. 135° or less (YE
S), direction 5 is determined in step S19 and sent to the MPU 16 built in the display 3. MPU
16 lights up an arrow indicating direction 5 on the display section 17. 1
If it is 35° or more (No), the process advances to step S20.

In step S20, it is determined whether the angle D calculated by MPU10 is 160° or less. 160° or less (YE
S), direction 6 is determined in step S21 and sent to the MPU 16 built in the display 3. MPU
16 lights up the arrow indicating the direction 6 on the display section 17. 1
If it is 60° or more (No), the process advances to step S22.

In step S22, it is determined whether the angle D calculated by MPU10 is 200° or less. 200″ or less (YE
S), direction 7 is determined in step S23 and sent to the MPU 16 built in the display 3. MPU
16 lights up the arrow indicating the direction 7 on the display section 17. 2
If the value is 00゛ or more (No), the process advances to step S24.

In step S24, MPt determines whether the angle D calculated in step 110 is 225° or less. 225゛ or less (
If YES), direction 8 is determined in step S25,
It is sent to the MPU 16 built into the display 3. M
The PU 16 lights up an arrow indicating the direction 8 on the display section 17. If it is 225° or more (No), the process advances to step S26.

In step S26, it is determined whether the angle D calculated by MPU10 is 250° or less. 250' or less (YE
S), step 3274 determines direction 9 and sends it to the MPU 16 built in the display 3. MP
U16 lights up an arrow indicating direction 9 on display section 17.

If it is 250° or more (No), the process advances to step 32B.

In step S28, it is determined whether the angle D calculated by MPU10 is 290° or less. 290° or less (YE
S), the direction is determined to be 10 in step S29 and is sent to the MPU 16 built in the display 3. MP
U16 lights up an arrow indicating the direction 10 on the display section 17. If it is 290° or more (NO), the process advances to step S30.

In step S30, it is determined whether the angle D calculated by MPU10 is 315° or less. 315° or less (YE
S), the direction is determined to be 11 in step S31 and is sent to the MPU 16 built in the display 3. MP
U16 lights up an arrow indicating the direction 11 on the display section 17. If it is 315° or more (NO), the process advances to step S32.

In step 332, it is determined whether the angle D calculated by MPU10 is 340° or less. 340° or less (YE
S), the direction is determined to be 12 in step S33, and is sent to the MPU 16 built in the display 3. MP
U16 lights up an arrow indicating direction 12 on display section 17. If it is 290° or more (NO), the process advances to step S34.

In other cases, direction 1 is determined in step 334 and sent to the MPU 16 built in the display 3.

The MPU 16 lights up an arrow indicating direction 1 on the display section 17.

〔Effect of the invention〕

At intersections, the destination direction will be displayed more easily in the front, back, left, and right directions. Intersections often have roads running forward, backward, left, and right, making it easier to determine which road to take at an intersection.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of the mobile body position display of this embodiment, and FIG. 2 is a block diagram showing the structure of this embodiment, and a flowchart showing the third corner and the operation of pointing the direction arrow to the third corner. Antenna, GPS receiver, calculation board, ・MPU (calculation means), ・ROM (retention means), ・RAM (storage means), 16..MPU (lighting means), 18.. Display unit (display means) ).

Claims (1)

[Claims] An antenna for receiving radio waves, a GP connected to the antenna and calculating the running position of the user.
S receiver, a map data holding means for holding map data, a calculation means for calculating a position on the map based on the traveling position and the map data, and storing a destination input in advance by the user. a calculation board comprising a storage means; a calculation means for the calculation means to calculate a direction relative to the destination and the user's running position; a light emitting means for displaying the direction to the destination and the user's running position; In the moving versus position display device, the lighting means has a region in which the light-emitting means pointing in the front, back, left, and right directions is set to be larger than an area in which the light-emitting means pointing in other directions is lit. A mobile object position display device characterized in that: