JPS61131100A - Navigation aid system - 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] [Technical field to which the invention pertains] The present invention provides a navigation aid system (mobile object operation aid) that can reduce the burden of driving by knowing the position and route of a mobile object. Method) % formula % As a conventional navigation aid system.

For example, research and development of comprehensive vehicle control technology was carried out as a large-scale project by the Ministry of International Trade and Industry from 1970 to 1972 (References).
Large-scale project ``Research and development of comprehensive vehicle control technology'' published by Japan Industrial Technology Promotion Association.

(August 1978).

As part of this research, the vehicle-to-ground millimeter-wave communication system (hereinafter referred to as the large-scale millimeter-wave system) uses maps to guide vehicles, mainly at intersections. But with this method.

It is necessary to install ground equipment at each intersection.

Since it uses millimeter waves (60 CHZ), it has drawbacks such as extremely high cost.

In addition, in other conventional navigation aid systems, for example, a slate gyro sensor mounted on a car is used as a direction sensor.

There is a method of displaying the position of your troops on the console display in combination with a distance sensor such as a tachometer. However, this method requires manual replacement of the map sheet on the display, and since it is not connected online to ground equipment (e.g., traffic information center), real-time traffic information cannot be handled, and route guidance is not available. The drawback was that it could not be done.

[Purpose of the invention]

An object of the present invention is to provide wireless traffic information services.
To provide a navigation aid system capable of displaying route guidance in real time on an image display device and constantly displaying the position of a moving object on a map on two display devices based on the latest data from the computer. .

[Structure of the invention]

A navigation aid system according to the present invention.

As shown in FIG. 1, a package media type electronic information storage means for storing position route information of an area where a moving object exists, a position sensor means for detecting and outputting the position of the moving object, and a position sensor means for detecting and outputting the position of the moving object; an image display means for displaying a guide map of a travel route of the vehicle; and a means for inputting departure point information and destination point information of the mobile object.

A mobile body that includes processor means for controlling and calculating information exchange between these means, means for temporarily storing guidance information, and signal transmitting and receiving means for transmitting and receiving signals with a fixed station via a wireless line. A system, an electronic information storage means for storing location and route information of a service area, an electronic storage means for inputting and outputting route guidance information regarding the service area, and a processor for controlling the exchange of information between these means and performing calculation processing. and a signal transmitting/receiving means for transmitting and receiving signals between the mobile body and the mobile body via a wireless line, and the fixed station system includes a signal transmitting/receiving means for transmitting and receiving signals between the mobile body and the mobile body, and detects the departure point information from the mobile body by the position sensor means. transmitting the location information and the destination point information to the fixed station and transmitting these information to the fixed station; read position route information corresponding to the position route information, read route guidance information corresponding to the position route information from the electronic storage means, and obtain departure point information from the mobile body.

Alternatively, based on the position information and destination point information, an optimal route guidance plan to the destination point is created from the position route information and the route guidance information, and the route guidance plan is routed through the wireless line as a series of guidance information signals. The mobile system, which has received the guidance information, uses the processor means of the mobile station to read out the position route information from the packaged media type electronic information storage means and the received guidance information. creating a route guidance map from the temporarily stored and then read guidance information and the position information from the position sensor means;
It is characterized in that it is displayed on the image display means.

[Embodiments of the invention]

Next, an embodiment of the navigation aid system of the present invention will be described with reference to the drawings.

FIG. 2 is a system diagram of an embodiment according to the present invention. In this figure, a user of this system who is riding in a car (CAR) 20 first turns on the power. As a result, a pop-up menu is displayed on the vehicle-mounted image display device (MDISP) 1, such as a CRT DISPLAY, and the menu can be accessed from the vehicle-mounted keyboard (
MKYB)2. Or 2.Write in the displayed instruction items using MKYB 2.

Or select with mouse (MOUSE) 4. This series of steps is performed using f program ROM (MROM)
8), the in-vehicle central processor unit 7) (
Controlled by MCPU) 3. When the route guidance service menu is selected, the departure point and destination point are secondly entered using the designated dial (αB2), MOUSE 4, etc.

In place of these keyboards and mice, MDISP 1
The input may be made using a touch sensor provided on the surface of the screen.

Point information (information on departure point and destination point).

Interface to MCPU 3 (MINT) 5
is transmitted to an on-vehicle radio transceiver (MTR) 6, where it is modulated and transmitted to a radio frequency 2, e.g. 800 MTR.
In-vehicle antenna (MANT) using Hz band as carrier wave 7
Dialogue.

is sent to a fixed station (FS) 40.

On-vehicle antenna (MANT) 7 and fixed antenna (F'
ANT) 31 and the above-mentioned 'f) 800
They are connected via MHz band radio. The received wave received by FANT 31 is demodulated by fixed station transceiver (FTR) 32.

The location information sent from the car is sent to the interface (FIN).
Fixed station central processor (FCP)
U) Reach 34. The FCPU 34 provides various information 2 for route guidance information, such as position and route information, electronic information 1
Read from storage device (FMEMI) 36. FME
The MI/36 location and route information includes relatively constant information such as all map information and all road information in the service area. Furthermore, the FCPU 34 has an electronic storage device (FMEM).
Read route guidance information from I[) 37.

The route guidance information of FMEMII/37 includes relatively changing information such as various regulatory information and various temporary regulatory information due to road construction, accidents, etc. Next, FCPU34
From this information, CAR20 performs calculations to extract the optimal route based on the point information received from the CAR20. Create a plan. Furthermore, FCP
U 34 reassembles the route guidance plan into a series of guidance information signals for transmission.

FINT 33, FTR32, FANT 31,
It is transmitted to MCPU3 via MANT7, MTR6 and MINT5.

The MCPU 3 stores the guidance information signal in the vehicle storage device (MME).
M) 9, and further stored in advance in a packaged electronic information storage device (MFDD) 10, for example, a floppy disk device, and position/route information and FS4.
A route guide map is created from the guide information sent from 0 and displayed on MDISPl. The location route information in MFDD 10 is 2. For example, before leaving by car, the fixed station F
It can be obtained by inserting the floppy disk copied from FMEMI 36 of S40.

FIG. 3 shows the MCPU executed based on the program written in the MROM 8 in the embodiment shown in FIG.
3 is a flowchart showing the operation procedure of step 3.

The basic operating procedure of this system will be explained below with reference to this flowchart. When the program starts, a selection menu is first displayed on MDISP 1. MKYB 2, t-ta or MOU for route guidance menu
When you select SE 4 (step), you will be prompted to input the starting point and destination point (point information), so enter them using MKYB 2, etc.

The MCPU 3 reads this point information data (step ■), compares the location route information (map information, road information) stored in the MFDD 10 with the point information (step ■), and determines whether the point is stored. If it is within the range covered by map information or road information, step ■
If it is outside the range, an "outside service area alarm display" is displayed on, for example, the MDISP l (step 2). In the next step ■.

Place the point information on the diagonal frequency 9, for example 800 MHz, via MTR6, MANT 7, and FS4 via FANT 31.
Transmit to 0. In FS 40, the FCPU shown in Figure 4
According to the flow chart of 34 (Stella fO-■),
An optimal route guidance plan is created in real time based on the above point information, and FANT31 is used as a series of guidance information signals.
From CAR20 MANT 7, M, TR6 diameter M
It is sent back to CPU 3 (step ■). The MCPU 3 transmits its guidance information signal and connection interface device (SIN).
T) 12-way position sensor (5ENSOR) Position information from l1.

The map information stored in the MFDD 10 and the in-vehicle storage device (IM) 9 are stored in parallel. Next, this route guide map is read out at regular intervals and displayed on MDISP 1 (step ■). The output of the position sensor 11 is read every predetermined time Δt (step ■).

The information is transferred to the MCPU 3 (step ■), and the route guide map is re-created. As a result, the route guide map stored in the MMEM 9 is refreshed (step).

〔Effect of the invention〕

As is clear from the above description, according to the present invention, a user of a moving vehicle can store a
By copying position and route information within the driving area (for example, part of the position and route information of FMEM at a fixed station) to a media-type information storage device and using this while driving, you can Even in a wireless system where the transmission capacity of the wireless transmission path between the mobile station and the mobile station is much smaller than that of the millimeter wave method described above, a practical route guidance map can be displayed on the display device. For example, the transmission capacity of the transmission line is 10 Filf bps in the millimeter wave system, while it is 2400 bps in the system of the present invention, and the ratio is about 1/4000.

Location route information and map information, which require a large amount of information, are used in package-type media, and among guidance information signals, only information signals based on various types of temporary regulation information due to accidents, etc. that require real-time performance are transmitted over wireless lines. This transmission has a great effect in that an economical and practical system can be obtained.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the configuration according to the present invention. FIG. 2 is a block diagram showing the system configuration of the embodiment according to the present invention, FIG. 3 is a flowchart showing the operating procedure of the mobile system in FIG. 2, and FIG. 4 is the operating procedure of the fixed station in FIG. 2. It is a flowchart which shows. In the figure, 1 is an in-vehicle image display device (MDISP)
. 2 is the in-vehicle keyboard (MKYB), 3 is the in-vehicle central processor unit (MCPU), and 4 is the mouse (MOUSE). 5 is a connection interface device (MINT), 5 is a vehicle-mounted radio transceiver (MTR), and 7 is a vehicle-mounted antenna (
MANT). 8 is a program ROM (MROM), 9 is a vehicle storage device (MMEM), 10 is a packaged electronic information storage device (MFDD), 11 is a position sensor, and 12 is a connection interface device (5ENSOR).
, 20 is a car (CAR). 31 is a fixed station antenna (FANT), 32 is a fixed station radio transceiver (FTR), 33 is a fixed station connection interface device (FINT), 34 is a fixed station central processing unit (F'CPU), 35 is a fixed station ROM for station program (FROM), 36 is a fixed station electronic information storage device (FMEMI), 37 is a fixed station electronic storage device (FMEM [[), 38 is a fixed station key date (F'KYB)) Fig. 1 II L--1------'s voice--1-11--' Figure 4

Claims (1)

[Claims] 1. A package media type electronic information storage means for storing position route information of an area where a moving object exists, a position sensor means for detecting and outputting the position of the moving object, and displaying a guide map of the operating route of the moving object. means for inputting departure point information and destination point information of the moving body;
A mobile body that includes processor means for controlling and calculating information exchange between these means, means for temporarily storing guidance information, and signal transmitting/receiving means for transmitting and receiving signals with a fixed station via a wireless line. A system, an electronic information storage means for storing position and route information of a service area, an electronic storage means for inputting and outputting route guidance information regarding the service area, and a processor for controlling information exchange and calculation processing between these means. and a signal transmitting/receiving means for transmitting and receiving signals between the mobile body and the mobile body via a wireless line, and the fixed station system includes a signal transmitting/receiving means for transmitting and receiving signals between the mobile body and the mobile body, and detects the departure point information from the mobile body by the position sensor means. The fixed station system transmits the location information and the destination point information to the fixed station, and in the fixed station system that receives these information, the fixed station processor means responds to the information from the mobile object from the electronic information storage means. read the position route information corresponding to the position route information, read out the route guide information corresponding to the position route information from the electronic storage means, and determine the position based on the departure point information from the mobile object or the position information and destination point information. Create an optimal route guidance plan to the destination point from the route information and the route guidance information, transmit it as a series of guidance information signals to the mobile object via the radio line, and receive the guidance information. In the mobile system, the processor means of the mobile station temporarily stores the position route information read from the package media type electronic information storage means and the received guidance information, and then stores the read guidance information and the position sensor means. 1. A navigation aid system characterized in that a route guide map is created from position information from and displayed on the image display means.