JP2002250632A - Running guiding device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simply set a school zone from only position information of a school, even if school zone information is not recorded in road map data acquired from DVD-ROM or from the outside, and to thereby enhance running safety on the road in the school zone. SOLUTION: A prescribed area around the school is set as the school zone, and when running on a road in the set school zone range, a voice guide for arousing running attention is executed, based on school attendance day information excluding the spring vacation, summer vacation, autumn vacation, winter vacation, festival days, holidays or the like, and on school attendance time zone information.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a traveling guide device mounted on a vehicle or the like to provide various kinds of guidance during traveling of the vehicle.

[0002]

2. Description of the Related Art Conventionally, this type of travel guide device is incorporated in a navigation device. The navigation device detects a current position by a current position detecting means such as a GPS receiver, obtains road map data corresponding to the current position through a recording medium such as a DVD-ROM or a network, displays the data on a liquid crystal display, and displays Route search means searches for a recommended route to the destination set by the user,
This is to be superimposed on the map displayed on the liquid crystal display. When approaching a branch point such as an intersection or an interchange, an enlarged view or a three-dimensional view thereof is displayed, and guidance in a traveling direction and a distance to a destination are provided by voice. Further, road traffic information such as traffic congestion information on a route can be obtained by a road beacon in VICS, FM multiplex broadcasting, or from an information center, etc., and displayed on a liquid crystal display, thereby providing route guidance avoiding traffic congestion. You can also.

[0003]

However, in the above-described conventional travel guide device, although information on traffic congestion on the guide route is provided, the road used by school children on their way to school is not provided. However, in an area where there is a high probability that a child or the like on the way to school is present, calling attention to the driver is effective information for the driver. In the future, it will be possible to add information on whether or not the road is a school road to the road map data and provide guidance to alert the driver based on that information. It is difficult to add such school road information to data because it requires a huge amount of work and memory capacity.

[0004] The present invention solves such a conventional problem, and provides a driving guide capable of setting the periphery of a school as a school zone by a simple method and improving driving safety on a road in the school zone. It is intended to provide a device.

[0005]

In order to achieve the above object, a travel guide device according to the present invention sets a predetermined area around a school as a range of a school zone, and sets the area within the set school zone. When traveling on a road, the vehicle is provided with control means for giving guidance for driving attention based on school day information and time information. Using longitude / latitude information etc., for example, set a radius within a few kilometers as a school zone range, assume that the roads included in the range are school roads, spring break, summer vacation, autumn vacation, winter vacation, holidays, Improve road driving safety in the school zone by giving alerts by voice or display based on school day information and school hours information excluding holidays, etc. It is possible.

Further, the travel guide device of the present invention is characterized in that the range of the school zone is set according to kindergarten, elementary school, junior high school, and other various school types. School zone is narrow,
In the case of a junior high school, by setting a wide school zone, it is possible to set a school zone suited to the actual conditions such as a school distance and an activity range.

Further, in the travel guide device of the present invention, the range of the school zone is set in accordance with the type of road such as a motorway, a road with or without a sidewalk, a main road such as a national road, a general road or a narrow street. Is characterized in that
Using the road type data included in the road map data, for example, on major roads such as national roads, the sidewalk and the roadway are relatively separated, so the school zone is set narrow,
In narrow streets and the like, the sidewalk and the roadway are often close to each other. Therefore, by setting the school zone wide, it is possible to set the school zone according to the actual situation.

[0008] Further, the travel guidance device of the present invention is characterized in that the range of the school zone is set according to the road density, and the number of roads (the number of links) within a predetermined range included in the road map data. ), The total road distance, or information such as the road width, it can be estimated whether it is an urban area or a suburban area.
If the road density is low in a suburban area or the like, the school zone can be set according to the actual situation by setting the road zone wide.

[0009] Further, the travel guide device of the present invention is characterized in that the range of the school zone is set according to the area division, and is narrow in densely populated areas and wide in depopulated areas. By setting, the school distance is generally long in the case of a depopulated population, and a school zone suitable for the actual situation can be set.

[0010] Further, the travel guide device of the present invention is characterized in that the content of the guide is changed according to kindergarten, elementary school, junior high school, and other various school types.
In the case of kindergarten, a sudden jump of a toddler is predicted, so the degree of alert is increased.In the case of an elementary school, a jump of a child is expected, so the degree of alert is set to medium,
In the case of a junior high school, it can be treated as an adult to some extent, so by reducing the degree of alerting, it is possible to provide guidance according to the actual situation.

Further, the traveling guidance device of the present invention changes the content of the guidance according to the type of road such as a motorway, a road with or without a sidewalk, a main road such as a national road, a general road, and a narrow street. For example, voice guidance is not provided on a dedicated road for automobiles, the degree of alerting is reduced on roads with sidewalks, and the degree of alerting is increased on roads without sidewalks, We can provide guidance according to the actual situation.

Further, the travel guidance device of the present invention is characterized in that the content of the voice guidance is changed according to the sunshine hours in the area, and the activity hours of the students at the school often differ. Guidance can be provided in accordance with the sunshine hours based on the sunshine hours based on the difference in latitude and longitude.

Further, the traveling guidance device of the present invention is characterized in that the content of the voice guidance is changed according to the traveling speed, and when the speed is high, the degree of alerting is increased, When the speed is low, the degree of alert can be reduced.

Further, the traveling guide device of the present invention is characterized in that guidance suitable for each case is provided before, during, and after passing through the school zone, and suitable for each case. By performing the guidance, it is possible to prepare for feeling before entering the school zone, to increase the sense of tension for driving while passing through the school zone, and to release from the sense of high tension after passing through the school zone.

Further, the traveling guide device of the present invention is characterized in that when traveling in the school zone, the vehicle is decelerated by sending a deceleration instruction signal to a control device of the vehicle. In addition to alerting, the driving safety of the school zone can be enhanced by controlling the running speed of the vehicle so as not to be forced to exceed the speed limit, for example.

[0016]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a configuration of an on-vehicle navigation device provided with a travel guide device according to an embodiment of the present invention. In FIG. 1, the direction sensor 1 includes:
A vibrating gyro is used to detect the heading of the vehicle.
The vehicle speed sensor 2 generates a vehicle speed pulse according to the number of rotations of wheels of a vehicle equipped with the present device. The various sensors 3 include a sensor for detecting a backward movement of the vehicle, a sensor for detecting parking of the vehicle, a sensor for detecting lighting of a light, and the like. The sensor signal processing unit 4 calculates a traveling direction of the vehicle based on a signal from the direction sensor 1, calculates a vehicle speed and a traveling distance from a vehicle speed signal from the vehicle speed sensor 2, and further calculates various types of sensors 3.
A signal necessary for the control is generated based on the signal from. DVD
The ROM drive 5 reads map data, voice data, voice recognition dictionary data, and the like from the DVD-ROM. The liquid crystal display 6 displays a map, a current vehicle position, a direction, an operation menu, and the like, and has a light receiving unit 6a for receiving a signal from the remote controller 7 on a front surface thereof. The remote control 7 is a liquid crystal display 6
An operation unit is configured with a touch panel, operation buttons, and the like provided on the front of the camera. The GPS receiver 8 can calculate the current position (latitude / longitude) of the vehicle by receiving and calculating radio waves transmitted from a plurality of satellites. The GPS antenna 9 is an antenna for receiving a GPS radio wave.
The external communication control unit 10 is for connecting to an external network such as the Internet via a mobile phone or the like. These DVD-ROM drives 5 are integrated with a liquid crystal display 6, are arranged on a dashboard of a vehicle together with a GPS receiver 8, and are connected to a communication interface 13 of a device body 12 through an in-vehicle LAN 11. The device main body 12 is installed in a trunk room of a vehicle, a center console in the vehicle, or the like.

The microphone 14 is arranged near the driver in the vehicle, and inputs a word uttered by the user. Recognize. Image processor 1
Reference numeral 6 performs a display image forming process based on map data, current position data of the own vehicle, building data, and the like. Storage unit 17
Are a ROM for storing programs and data, a RAM for temporarily storing work data, and a VR for storing image data.
AM etc. are provided. The voice processor 18 converts a phoneme symbol sequence output as a voice recognition result into a voice signal, or converts voice data stored in the ROM of the storage unit 17 into a voice signal. The speaker 19 is based on a signal from the voice processor 18, and provides search results and voice recognition results, voice guidance such as intersection guidance, branch guidance, tollgate guidance, exit guidance, and school zone guidance on a traveling route, and remote control operation. Output the contents in audio. CPU (central processing unit) 2
0 executes a software program such as a current position calculation unit and a route search unit to control the entire device and realize a function as a navigation device,
When traveling on a road in a school zone set around a school, voice guidance for calling attention to traveling is processed based on calendar information and time information from a built-in timer.

Next, with respect to the operation in the present embodiment, the operation of the entire navigation device will be described first. In FIG. 1, when the apparatus is started up by a predetermined operation, the current position detecting means in the CPU 20 receives the position information from the GPS receiver 8 and the direction sensor 1 and the vehicle speed sensor 2.
An accurate current position of the own vehicle is calculated based on the data obtained by processing the signal from the sensor signal by the sensor signal processing unit 4. Based on the vehicle position information, the CPU 20 reads the corresponding road map data from the DVD-ROM through the DVD-ROM drive 5, converts the road map data into image data by the image processor 16, and temporarily stores the image data in the VRAM of the storage unit 17. The color signals are converted into color signals and displayed on the screen of the liquid crystal display 6 through the communication interface 13 together with the vehicle position. The road map data can be obtained from an external server through the external communication control unit 10. Meanwhile, microphone 1
When an address name such as a destination is input through 4, the voice recognition unit 15 recognizes the address name, and the CPU 20 sets the address name as the destination and stores it in the RAM of the storage unit 17. C
The route searching means in the PU 20 calculates an optimal guide route from the current position of the vehicle to the specified destination and displays the optimum guide route on the map of the liquid crystal display 6. When the driver advances the vehicle along the guidance route displayed on the liquid crystal display 6, the CPU 20 displays the information on the liquid crystal display 6 based on the current position information calculated by the current position detecting means and the road network data on the road map data. The own vehicle position mark will be updated sequentially. When the vehicle approaches a branch point or the like in the guidance route, the voice guidance added to the road map data is output from the speaker 19. By such navigation guidance, the driver can travel to the destination in the shortest time without hesitation.

The road map data recorded on the DVD-ROM or the road map data obtained from outside through the external communication control unit 10 is used for school facilities classified by school type such as nursery school, kindergarten, nursing school, elementary school, junior high school, and the like. Contains location (latitude / longitude) information. The road map data also includes position information of highways, general roads, roads classified by road types such as 5.5 m or more in width and 3.0 m or more in width. In addition, it also includes information on the regional divisions by the administrative boundaries and their locations.

Here, the school zone is set in advance within a radius of several kilometers around the school facility, based on the information, with reference to the commuting area of each place. The range of this school zone can be set to be narrow in the case of nursery schools, kindergartens, nursing schools, and elementary schools, and wide in the case of junior high schools, for example, according to the commuting distance and radius of action of students. Therefore, the school zone can be set to an optimum range according to the school facility.

When the road width is 5.5 m or more, the distance between the vehicle and the pedestrian is long when the road width is wide, and the distance is likely to be short when the road width is narrow. Can set the school zone narrow, and if the width is less than 5.5 meters, the school zone can be set wide. Therefore, even if you are away from school facilities, the school zone can be set to the optimum range according to the width. it can.

Further, whether or not the roads are congested in a narrow range is calculated from the number of roads existing in the predetermined range, the total number of roads, the distance and the width (the value included in the road map data is calculated). Judgment is made based on the multiplied road area, etc. If the number of roads is large, the total number of roads is long, the road area is large, etc. The school zone can be narrow because the distance is short, and conversely if the road is not crowded, the school zone can be wide because the commuting distance is long.

The ROM of the storage unit 17 stores, as school zone information, not only school type and location information but also winter vacation, spring vacation, summer vacation in which school facilities in one year are closed.
School day information excluding holidays such as Sundays and Sundays, school time zone information, speed limit information within the set school zone, etc. are stored.Furthermore, various types of notification data are notified when passing through the school zone. Of voice guidance data and display guidance data. The notification data has different contents depending on the above-mentioned school type, road type, sunshine time, school arrival date, commuting time zone, speed limit, and the like. The voice guidance data and the display guidance data may be stored in a replaceable memory card, or may be downloaded from an external server through the external communication control unit 10 and stored in the RAM of the storage unit 17. .

Then, by selecting and notifying voice guidance data in which the degree of alerting is changed according to the type of school from such guidance data, guidance according to the environment of each region can be performed. . For example, in a school zone centered on a kindergarten, there is a high possibility that small infants are present in the area, and sudden jumping out of the infants is predicted. Whether it ’s a voice that ’s easy to recognize, a voice with a warning tone, a commanded phrase,
Select voice guidance data with a high degree of alerting by repeating the phrase. Also, in the school zone centered on elementary school, there is a high possibility that there is a child in that area that is relatively bigger than an infant and easy to see even from the car, and that the child is expected to jump out, The above-mentioned voice guidance data, or slightly lowering the volume or voice band, or uttering voices without warning sound, makes the degree of alerting more moderate than infants, and in the case of junior high school it can be treated as an adult to some extent A medium-level voice guidance data with a reduced degree of alerting is selected.
Also, in the school zone centered on junior high school, there is a high possibility that there are students who are large, easy to see from the car, and can grasp the situation more easily. Choose one.

In addition to the voice, the display size (including the shape), the display color, and the display pattern (zoom up and down, or repeat them, and display them horizontally, vertically, etc.) on the display in the car , Or the display state and the non-display state are alternately changed) to change the degree of alerting, so that the display guidance data may be notified together with the voice guidance data or alone. In this case, the degree of alertness may be increased by enlarging the display, changing the display color to a color different from red or the surrounding color, or increasing the change in the pattern. In addition, when using voice guidance data and display guidance data together to increase the level of alerting, the voice guidance data is notified alone or together with the display guidance data so that the notification can be recognized without looking at the display. When the degree of alert is reduced, only the display guidance data may be notified.

(Embodiment 1) Next, the processing by the CPU 20 when the traveling vehicle enters the school zone will be described as Embodiment 1 with reference to FIG. When the travel guide route to the destination is set, all the school zone information existing in the travel guide route is stored in the RO in the storage unit 17.
M, etc., and read as R as a table as shown in FIG.
It is stored in the AM (step S1). While the vehicle is traveling along the travel guide route, the vehicle may not travel 5
It is always monitored whether or not there is a school zone at a distance of 00 m (step S2). If there is a school zone with a speed limit of 20 km / h as in 1, voice guidance saying "There is a school zone 500 m ahead. Drive at a speed limit of 20 km or less." (Step S3). Next, in comparison with the current position,
Check if you have entered the school zone (step S
4) If the vehicle enters, a voice guide saying "You are running in the school zone. Be careful of children jumping out" is output from the speaker 19 (step S5). Then, when the student leaves the school zone (step S
6) A voice guidance saying "You have passed the school zone. Please continue to drive safely."
9 (step S7), and the process ends.

In addition, the content of the voice guidance is changed according to the type of the road, and the voice guidance is not performed on the motorway.
The degree of warning may be reduced on a road with a prepared sidewalk, and may be increased on a road without a sidewalk. In addition, the content of the voice guidance is changed according to the sunshine time of the area, and the activity time of the child may vary depending on the sunshine time due to the difference in latitude and longitude. It may be.

Also, when traveling in the school zone,
In addition to the speed limit set for the road, a threshold value may be set according to the type of school. For example, if you have a kindergarten, set the threshold much lower than the speed limit to deal with sudden jumps of infants, and if you have an elementary school, set the threshold to a moderately lower speed limit. In the case of junior high school, the threshold of the speed limit is set to a value close to the normal speed limit. Note that if the vehicle is traveling beyond the speed limit, the vehicle will be decelerated below the speed limit, and if the vehicle is running slowly, voice guidance will be given to the effect that it will disturb the following vehicle. Good.

As described above, according to the first embodiment, when the travel guide route to the destination is set, all the school zone information existing in the travel guide route is read out, and during the travel, Appropriate voice guidance will be given when approaching the school zone, while passing through the school zone, and when leaving the school zone, so that drivers can be encouraged to drive safely in the school zone, and traffic accidents Can be reduced.

(Embodiment 2) Next, another processing by the CPU 20 when the traveling vehicle enters the school zone will be described as Embodiment 2 with reference to FIG. When the travel guide route to the destination is set, all the school zone information existing in the travel guide route is read from the ROM or the like of the storage unit 17 and stored in the RAM as a table as shown in FIG. S11). While the vehicle is traveling along the travel guide route, it is constantly monitored whether or not there is a school zone 500 m ahead in comparison with the current position (step S12).
School zone No. Speed limit is 30km as in 2.
If there is a school zone of / h, a voice guidance saying "There is a school zone 500 m ahead. Drive at a speed limit of 30 km or less." Is output from the speaker 19 (step S13). Next, it is checked whether or not the vehicle speed signal input from the sensor signal processing unit 4 indicates a speed limit of 30 km / h or less (step S14).
It outputs to the CU (electronic control unit), and outputs a voice guidance from the speaker 19 stating that "the vehicle is traveling at or above the speed limit, forcibly decelerate for safety" (step S15). The ECU gradually reduces the opening of the throttle valve of the engine in response to the deceleration instruction signal, and forcibly decelerates the engine so as not to exceed the speed limit. Steps S14 and S15 are not added as routine processing, but may be optionally selected by the user. Next, in comparison with the current position, it is checked whether or not the child has entered the school zone (step S16). If the child has entered the school zone, "the vehicle is running in the school zone.
Is output from the speaker 19 (step S17). When the vehicle leaves the school zone (step S18), a voice guidance saying "You have passed the school zone. Please continue to drive safely" is output from the speaker 19 (step S1).
9), the process ends.

As described above, according to the second embodiment, when the vehicle is traveling in the school zone at a speed higher than the speed limit, the vehicle is forcedly decelerated or forcedly driven so as not to exceed the speed limit. When the user does not like the deceleration, only the notification of the deceleration is given, so that the driver can drive safely in the school zone, and the traffic accident can be reduced.

[0032]

As described above, according to the present invention, the school zone is set in a predetermined area around the school, and the school zone information is recorded in the DVD-ROM or road map data obtained from outside. Even if there is no school zone, the school zone can be easily set only from the location information of the school. In addition, when traveling on a road within the set school zone, voice guidance for calling attention to traveling is performed based on the school day information and time information, so that the driving safety of the road in the school zone is improved. Can be enhanced.

[Brief description of the drawings]

FIG. 1 is a schematic block diagram showing a configuration of a travel guidance device according to an embodiment of the present invention.

FIG. 2 is a schematic flowchart showing a school zone traveling process according to the embodiment of the present invention.

FIG. 3 is a table showing school zone information according to the embodiment of the present invention.

FIG. 4 is a schematic flowchart showing another school zone traveling process according to the embodiment of the present invention.

[Explanation of symbols]

 Reference Signs List 1 direction sensor 2 vehicle speed sensor 3 various sensors 4 sensor signal processing unit 5 DVD-ROM drive 6 liquid crystal display 7 remote control 8 GPS receiver 9 GPS antenna 10 external communication control unit 11 in-vehicle LAN 12 communication interface 13 device body 14 microphone 15 voice recognition Unit 16 image processor 17 storage unit 18 voice processor 19 speaker 20 CPU

Continued on front page F-term (reference) 2C032 HC08 HC27 2F029 AA02 AB01 AB07 AB09 AC01 AC02 AC04 AC06 AC18 5C086 AA47 BA22 DA40 EA45 FA07 FA18 5H180 AA01 BB13 BB15 FF04 FF05 FF22 FF25 FF27 FF33

Claims (8)

[Claims] 1. A predetermined area centered on a school is set as a range of a school zone, and when traveling on a road in the set school zone, caution is required on the basis of school arrival date information and time information. A driving guide device comprising control means for providing a guide for calling the driver. 2. A control means for setting a range of a school zone centering on a school according to a school type, and providing guidance for calling a caution when traveling on a road in the set school zone. A travel guidance device, characterized in that: 3. A control means for setting a range of a school zone in accordance with a road type centering on a school, and providing guidance for calling a caution when traveling on a road in the set school zone. A travel guidance device, characterized in that: 4. A control means for setting a range of a school zone in accordance with a road density around a school, and providing guidance for calling a caution when traveling on a road in the set school zone. A travel guidance device, characterized in that: 5. A control means for setting a range of a school zone in accordance with an area division centering on a school, and providing guidance for calling a caution when traveling on a road in the set school zone. A travel guidance device, characterized in that: 6. The contents of the guidance are classified by school type, road type,
The travel guide device according to any one of claims 1 to 5, wherein the travel guide device is changed according to a sunshine time or a travel speed in the area. 7. The travel guidance device according to claim 1, wherein the guidance is performed before, during, or after passing through the school zone. 8. The travel guide device according to claim 1, wherein when traveling in the school zone, the vehicle is decelerated by sending a deceleration instruction signal to a control device of the vehicle.