JPS6040909A - Running course guiding apparatus - Google Patents

Abstract

PURPOSE:To guide a running course accurately by a simple and compact constitution, by comparing the determined point of a prearranged course memory with present position data, controlling the instruction of directions and reading of the course guiding audio memory, and freely correcting the course memory. CONSTITUTION:The present position coordinates of a predetermined point such as an intersection, which are read out of a present position memory 25 by the detected value operations of direction and distance sensor 5 and 6, and the coordinates of a specified point, which are stored in a prearranged course memory by the tracking and the like of a map by a digitizer 7, are processed by a comparator part 27. When the difference between both coordinates becomes lower than specified value, a direction instructing and display part 10 and a speech memory 28 are controlled by the comparator part 27, and the direction instruction is performed. Course guiding audio instruction is also generated. At this time, when a correction instruction input key 36 is operated, the contents of the memory after the next specified point in the memory 21 are corrected. Therefore, a map and the like is not required to be displayed, and the running course can be guided accurately by a simple and compact constitution.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a driving course guiding device, in particular, a traveling course guide device, for example, a moving object such as a car, based on current position information calculated based on output signals from a direction sensor and a distance sensor mounted on the moving object. A driving course guidance device that provides course guidance is equipped with a planned course memory that stores position information of predetermined points in the scheduled driving course and driving direction instruction information at the points, and corresponds to the above current position information. Display of the driving direction at the above points, announcements regarding course guidance, and the above scheduled course/
The present invention relates to a running course guiding device that corrects positional information stored in a mesori.

The applicants of the present application developed a running course guiding device as shown in FIG. 1 prior to filing the present application. The driving course guidance device is disposed, for example, in front of the driver's seat.

As shown in Figure 1 (with a CRT display 1,
Separately installed direction sensor (not shown) and speed sensor
It is configured to plot a travel trajectory 2 obtained based on the direction of output from a sensor (not shown) on the display screen, while a map sheet 3 drawn on, for example, a transparent film is attached to the front of the display screen. Constructed to be removable.

The attached map sheet 3 is fixed by a map fixing means 4 so that the traveling trajectory 2 is extended along a desired road on the map.

One major feature and advantage is that the driving course guiding device line, the display screen and the map are superimposed and the driving trajectory is extended along the road on the map. Although this can be expected as a 12-direction driving course guidance device, it also has the following problems. That is.

(1) A map attached so as to correspond to the display screen exists in the form of a map sheet, and is configured to be manually attached and removed manually. For this reason, if, for example, while driving with one map sheet 3 attached, the driving trajectory advances to the edge of the map and it becomes necessary to replace the map with a new one, it is necessary to manually replace the map. In addition, when performing this replacement, it is necessary to select a new map sheet to be replaced as the primary map sheet one by one from among a large number of map sheets, and this process is relatively troublesome.

(II) Since the route must be determined by visually checking the map and the travel trajectory, there is a problem in terms of safe driving.

1i1i1 Since both volume and weight are large, it is not unsuitable for small cars, and certain parts are required for installation.

(M) Since a pre-prepared map sheet is used, there is a lack of flexibility regarding the map display scale.

The purpose of the present invention is to solve the above-mentioned problems, and for this reason, the running course guidance device of the present invention includes a direction sensor that detects the running direction of a moving object and a distance sensor that detects the running distance. In a driving course guidance device that is mounted on the vehicle and guides a driving course based on current position information of the moving body calculated based on detection signals from the direction sensor and the distance sensor, A direction indication display section for instructing the running direction of the moving object at the point; a planned course memory for storing in advance position information of the point and running direction instruction information for the point; and storing voice information regarding course guidance at the point. It is equipped with a voice memory and a position correction section for correcting the contents of the scheduled course O memory.

Compare the current position information with the position information of the point stored in the planned course memory.

The running direction at the point is displayed on the direction instruction display section, and the content of the voice memory is accessed to make an announcement regarding the course guidance at the point, and further stored in the planned course mesori by the position correction section. It is characterized in that it is configured to correct the location information that has been posted. This will be explained below with reference to the drawings.

FIG. 2 is a perspective view showing the configuration of an embodiment of the present invention.

FIG. 6 shows a block diagram of the embodiment shown in FIG.

As shown in FIG. 2, the running course guiding device of the present invention includes a direction sensor 5. Distance sensor 6I digitizer 7
, a control device 8 and a display device 9. And 1 display device 9.

A direction indication display section 10 for indicating the direction of travel, that is, left turn, right turn, and straight ahead, at predetermined points on the travel course, such as road intersections, railroad crossings, bridges, and other points that serve as landmarks for travel. A speaker 11 for making announcements regarding course guidance at the above points (for example, the place name of the point, directional instructions such as turning right, turning left, going straight, etc., and voice guidance such as approaching the destination). Direction display section 12 that displays the traveling direction of the mobile object. And trip display sections 1 and 3 that display the mileage? It is withering. Also, road map 1
Reference numeral 4 is used for inputting information on a route to be described later, and microphone 33 is used for inputting information regarding course guidance at the aforementioned points by voice. below.

The operation of the embodiment shown in FIG. 2 will be described in detail with reference to FIG. Reference numerals 5 to 7 and 10 to 13 in FIG. 3 correspond to those in FIG. 2, 15 is an X counter, 16 is
is an X counter, 17 is a scale type key, 918 is a scale memory, 19 is a planned course calculation unit, and 20 is a direction input key 9.
21 is a scheduled course memory, 22 is an A/D converter,
23 and 25' are counters, 24 is a current position calculation unit,
25 Hiro current position memo Ij, 26 &1 distance memory, 27 comparison unit, 2B voice memory, 29 voice synthesis unit.

30 is an amplifier, 31 is a Hiro azimuth reference memory, 32 is an azimuth calculation unit, 33 is a microphone, 34 is an amplifier, 35 is a voice analysis unit,
The 36th line correction instruction entry key 137 represents a position correction section.

In the present invention, a predetermined point on the planned travel course, such as a road intersection, a railroad crossing, a bridge, etc., is selected before the start of travel, and the location information of the point and the point at the particular point are selected. The running direction instruction information, that is, the running direction instruction information of right turn, left turn, or straight ahead is stored in the space memory 21, which will be described later. That is, before the start of travel, a digitizer 7 is used to trace the planned travel course on a road map 14 of the planned travel area, as shown in FIG. 2, for example. The trace causes the digitizer 7 to output pulse signals corresponding to the amount of movement in the X and Y directions. The X-direction and Y-direction pulse signals are counted by the X counter 15 and the X counter 16, respectively, and the count value, that is, the position information of the planned course corresponding to the trace is sent to the planned course calculation section 19. On the other hand, the road map 1 used for tracing the planned driving course by the digitizer 7
The scale data of 4 is inputted by scale type key 17,
The scale data is stored in the scale memory 18. Therefore, in the planned course calculation section 19, based on the contents of the scale memory 18, the X counter 15 and the X counter 16 are
The position information of the scheduled course that is sequentially outputted from is converted. In this way, the calculation results in the planned course calculating section 19, that is, the position information of the scheduled running course corresponding to the tracing of the running plan/course by the digitizer 7 are sequentially sent to the scheduled course measurement unit 21. .

When the trace by the digitizer 7 reaches the point (for example, a road intersection), direction instruction data indicating the direction of travel at the point, that is, whether to turn right, turn left, or go straight at the point, is input into the direction instruction input field. -20 is input into the scheduled course memory 21. At this time, the position information input into the planned course memory 21, that is, the position information of the point and the direction instruction data are input into the planned course Φ memory 21. In this manner, while the digitizer 7 traces the entire course to be traveled, the position information of predetermined points and the direction instruction data at the points are sequentially stored.

In addition, at predetermined points on the above scheduled driving course, such as road intersections, railroad crossings, bridges, etc., points that are landmarks for driving, road names, place names, building names that are characteristic of the points, and the points concerned. Information regarding course guidance, such as the driving direction (right turn, left turn, go straight), is stored in the voice memory 28. That is, when the trace by the digitizer 7 reaches the point (for example, a road intersection), information regarding the course guidance at the point is input using the microphone 33. The voice inputted by the microphone 35 is converted into an electrical signal by the amplifier 34, and the voice is analyzed by the voice analyzer 35 and stored in the voice memory 28.

Next, the current position information of the moving body while traveling will be explained. The traveling direction information (analog signal) detected by the direction sensor 5 is converted into a digital signal by the A/D converter 22. - On the other hand, a counter 23 counts pulses outputted from the distance sensor 6 every time a predetermined distance is traveled (for example, in response to the rotation of a wheel), and the counter 23 collects samples every predetermined count value.
Output clock. Then, the current position calculation unit 24
Every time the sample clock is output from the counter 23, the X and Y components of the unit traveling distance are calculated based on the output of the A/D converter 22 and added to the j@th order. That is, the current position calculation unit 24 sequentially calculates and outputs position information of the current position based on the starting point, and the current position information is stored in the current position memory 25. That is.

The contents of the current position memory 25 are updated every time the moving body travels a unit distance, and the latest current position information is always held in the current position memory 25.

The comparing unit 27 performs a process of comparing the position information for each point on the predetermined running course stored in the planned course memory 21 described above and the current position information stored in the current position memory 25. It is done. For example, if the above-mentioned moving object has now departed from the starting point,
At that point, the comparison section 27 holds the position information and direction instruction data of the first point after departure read out from the planned course/method 21.

The position information of the first point and the current position memory 25
is compared in the comparing section 27, and the point in time when the absolute value of the difference becomes smaller than the value stored in the distance memory 26, that is, the current position of the moving object is relative to the first point. When the vehicle reaches within a predetermined distance (the distance information is stored in the distance memory 26), the comparator 27 outputs direction instruction data at the first point. Then, based on the direction instruction data, a direction instruction display is performed on the direction instruction display section 10. For example, if the content of the direction instruction data instructs a right turn, a right turn is displayed among right turn, left turn, and straight forward indications on the direction instruction display section 10, as shown in FIG.

Further, the comparing section 27 transfers to the audio memory 2B information informing that the vehicle has arrived within the range of, for example, the first point among a plurality of predetermined points in the scheduled course. As a result, the audio memory 28
The audio information related to the course guidance for the first point stored in the audio synthesizer 29. is read out. amplifier 50
For example, the speaker 11 makes a voice announcement such as "Next, turn right at the Ginza-Chome intersection. Turn right at the Ginza-Chome intersection."

In this way, 2. Third. Also at the point .

It was written. When the car reaches the first point above.

When the driver presses the correction instruction key 36, the 2-position correction unit 37 adjusts the current position g of the current position 25 at that time.
lIIv information and the contents of the planned course memory 21 (the above 1st
If there is an error, the error is calculated, and based on the error, the position information from the second point onward stored in the planned course memory 21 is calculated. Make corrections for this. As a result, it becomes possible to relatively accurately display directions and make announcements regarding course guidance at each point after the second point.

Further, in the embodiment shown in FIGS. 2 and 3, a direction display section 12 for displaying the running direction of the moving body and a trip display section 15 for displaying the travel distance are provided. That is, the detection signal of the direction sensor 5 that has been A/D converted by the A/D converter 22 is compared with the contents of the direction reference memory 31 set in advance in the direction calculating section 32, and the detected signal is The direction is indicated by the direction display section 12.

For example, as shown in FIG. 2, the display is divided into 16 directions. Further, the counter 23' counts the output pulses from the distance sensor 6 mentioned above, and the count value is sent to the trip display section 13. And trip display section 1
3 is composed of 9 multipliers, 9 display drivers, and display elements (all not shown), and 1 is added to the above count value.
The distance traveled is calculated by multiplying the distance traveled per count, and the distance traveled is displayed on a display element via a display driver. Note that the counter 3' is provided with a switch (not shown) for resetting the count value to zero. Therefore, the trip display section 1 shows the distance traveled from the desired point.
6 can be displayed.

As explained above, the driving course guiding device of the present invention can exhibit the following effects. That is.

(1) For example, the route to be taken is displayed at each point such as an intersection, and route instructions are given by voice, so
This has the effect of driving safely without being distracted by the course guidance display screen.

(11) Since the display unit is small and lightweight, it can be easily installed even in a small car, and no special mounting parts are required for installation.

(till A general-purpose road map can be used to input the planned course, and the scale can be freely selected.
There is no need to change maps while driving.

(1) Corresponding to the current position information when actually driving, the position information stored in advance in the planned course memory can be corrected, making it possible to accurately guide the course. becomes.

[Brief explanation of the drawing]

Figure 1 is an external view of a conventional travel course guidance device. FIG. 2 is a perspective view for explaining the configuration of an embodiment of the present invention, and FIG. 6 is a block diagram of the embodiment shown in FIG. In the figure, 5 is a direction sensor, 6 is a distance sensor, 7 is a digitizer, 8 is a control device, and 9 is a display device. 10 is a direction indication display section, 11 is a speaker, 12 is a direction display section, 13 is a trip display section, 15 is an X counter, 16
17 is a scale input key, 918 is a scale memory, and 19 is a planned course calculation unit. 20 is the direction input key, 121 is the planned course memory,
22 is an A/D converter, 23 and 25' are counters, 24 is a current position calculation unit, 25 is a current position memory, 26
is a distance memory, and 27 is a comparison section. 28i1. 29 is a voice synthesis section, 50 is an amplifier, 31 is an azimuth reference memory, and 32 is an azimuth calculation section. 65 is a microphone, 34 is an amplifier, and 35 is the audio analysis department. Reference numeral 36 indicates a correction instruction input key, and reference numeral 257 indicates a position correction section. Patent applicant: Alps Electric Co., Ltd. Patent attorney Mori 1) Akira (3 others) Figure 1

Claims (1)

[Claims] Equipped with a direction sensor that detects the running direction of the moving object and a distance sensor that detects the distance traveled, the current state of the moving object is calculated based on detection signals from the direction sensor and the distance sensor. Traveling in which the traveling course is guided based on position information; - In the space guidance device, a direction indication display section that indicates the traveling direction of the mobile object at a predetermined point on the traveling course, and a direction display section that instructs the traveling direction of the mobile object at a predetermined point on the traveling course, and a scheduled booth meeting memory for storing information on the driving direction at the point, and an audio memory for storing audio information regarding course guidance at the point. and a position correction unit that makes corrections to the contents of the above-mentioned scheduled course/memory, and compares the above-mentioned current position information with the above-mentioned point position information stored in the above-mentioned schedule memory. The driving direction at the point is displayed on the direction instruction display section, and the content of the voice memory is accessed to make an announcement regarding the course guidance at the point, and furthermore, the position correction section updates the planned course memory. A driving course guidance device characterized in that the driving course guidance device is configured to correct positional information stored in the vehicle.