JP2001004382A - On-vehicle navigation system and vehicle information and communication system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an on-vehicle navigation system which can automatically record vibrating spot information corresponding to each spot on a map on a vibrating spot recording means by measuring the position where the vibration of a road surface is detected and recording the vibration information and position information by correlating the information with map information. SOLUTION: An on-vehicle navigation system is provided with a vibration sensing means 103 which detects vibrations of road surfaces and acceleration changes by impacts, etc., from road surfaces, an its-own-vehicle position measuring means 102 which measures the position of its own vehicle by acquiring the positioning information of the GPS and various kinds of information for correcting the positioning error of the GPS, and a vibrating spot recording means 107 which records the vibration information and the position information on a spot from which the vibration information is acquired by correlating the information with map information. Therefore, the navigation system can record the vibrating spot information corresponding to each spot on a map on the recording means 107 without requiring any input from a user.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an on-vehicle navigation device, and in particular, automatically records, for example, unintentionally generated road surface vibrations that are not recorded in a map database, and uses the recorded vibration point information for navigation. The present invention relates to an in-vehicle navigation device and a road information communication system that are used to support safe driving of a vehicle.

[0002]

2. Description of the Related Art Heretofore, in guidance guidance by a navigation apparatus, as a means for recording a feature on an electronic map as a mark and using the mark, there have been means such as point registration or point registration. This means that the user himself or herself searches for a point to be recorded as a landmark for some purpose on the electronic map screen or by searching means from a database, stores the position information of the point to be registered in a memory,
By arranging landmarks such as bitmap images and sounds at the corresponding points on the electronic map, the landmarks of the recording points are displayed on the navigation guidance screen, and when approaching or passing the recorded points, some screen display or sound An event is executed.

Conventionally, as an example of such a navigation device, there has been a vehicle-mounted navigation device as disclosed in Japanese Patent Application Laid-Open No. 8-35848. that is,
Cautionary objects that generate an alarm (tunnel entrance,
The position in front of the crossing is recorded in advance in association with the position information recorded on the map disk, and a warning is issued by an image or sound when approaching the important object while following the recommended route. It is like that.

The above-mentioned conventional in-vehicle navigation device has a configuration as shown in FIG. FIG. 22 is a block diagram showing an example of a configuration of a conventional in-vehicle navigation device. First, the configuration of the above-described conventional in-vehicle navigation device will be described with reference to FIG.

[0005] In FIG. 22, reference numeral 2000 denotes a controller for centrally managing the entire in-vehicle navigation device.
Is a locator as a vehicle position measuring means for calculating the current position of the vehicle, 2002 is a GPS receiver for receiving positioning signals of GPS satellites, 2003 is a vehicle speed pulse sensor for correcting a positioning error based on vehicle speed, and 2004 is a position measuring device based on a change in acceleration. A gyro sensor for correcting an error, 2005 is a map database in which electronic map data is recorded, 200
6 is topographical information, 2007 is route information, 2008 is point-of-interest information, 2009 is a memory for temporarily storing map data, 2010 is a point-of-interest input means, 2011 is a navigation means for searching for a recommended route and providing route guidance, and 2012 is a means for conducting route guidance A display means 2013; a voice means for outputting voice;
Reference numeral 4 denotes a warning unit that warns of the passage of vibration.

Next, the operation of the above-mentioned conventional on-vehicle navigation device will be described with reference to FIG. First, the locator 2001 obtains the current position of the host vehicle by correcting an error of the positioning information received by the GPS receiver 2002 by the vehicle speed pulse sensor 2003 or the gyro sensor 2004. In the map database 2005, route information 2007, topographic information 2006, and cautionary point information 2008 in which points requiring caution in traveling are recorded in advance.
The controller 2000 reads the map information data for the current position of the own vehicle calculated by the locator (own vehicle position measurement) 2001 from the database 2005 and displays the information of the own vehicle on the display unit 2012. Display location and road map. The navigation means 2010 searches for a recommended route to the destination desired by the user, and performs guidance such as guidance to the destination and intersection guidance by the display means 2012 or voice guidance by the voice means 2013. The attention required input means 2010 searches the map database 2005 using a search means for a place where a mark is to be placed or a place where an alarm is to be generated.
Record at 009.

As described above, in the conventional on-vehicle navigation device, a point on the traveling route which is considered to be dangerous for traveling is stored in the map database 2005 in advance, or the position of the point of interest is manually input by the point of interest input means 2010. This is recorded in the memory 2009 and associated with the map. Then, when it is determined by the approach determining means (not shown) that the distance between the current position of the vehicle and the recorded cautionary position during the traveling guidance approaches and falls within a certain distance, the controller 2000 determines The warning means 2014 can issue a warning to the driver through the display means 2012 or the voice means 2013 to allow the driver to drive safely.

[0008]

However, in the above-mentioned conventional on-vehicle navigation system, the vehicle may be hit at the time of traveling, for example, at a dangerous place such as a road joint or a crater on a road surface, or at a bad road surface such as gravel. Points of interest, such as points of entry to the road surface or danger points that may cause discomfort or driving, are uncertain because they depend on the condition of road surface restoration, etc. It was impossible to record in advance as positional information on the point of interest. Also, even if the driver inputs manually, it is very difficult to always respond to the point of interest where restoration and deterioration are repeated, since registering a point every time the driver feels a road surface change is not realistic. There was no problem.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems. The present invention detects road surface vibration or impact from the road surface, measures the position where the vibration is detected, and compares the vibration information with the position information. An excellent in-vehicle navigation device that can record the vibration point information corresponding to each point of the map in the vibration point recording means automatically, regardless of the user's input, by recording the information in correspondence with the map information. The first object is to provide

[0010] Further, the present invention provides a caution for driving by issuing a warning just before approaching the vibration recording point when the vehicle is expected to pass on a vibration recording point recorded in advance. A second object of the present invention is to provide an excellent in-vehicle navigation device that contributes to safe driving of the vehicle.

Further, according to the present invention, in a search for a guidance route, when it is expected that the host vehicle will pass through a recorded vibration detection point, a search is made for a recommended route that avoids the vibration point and guidance is performed again. A third object of the present invention is to provide an excellent in-vehicle navigation device that provides a stable riding environment with low vibration and high quietness in a section to a destination.

Further, according to the present invention, vibration point information recorded in vibration point recording means mounted on each vehicle is transmitted to the outside of the vehicle, and the vibration point information is collected and integrated at a central information processing center. Road information that can generate the latest vibration point information and transmit the generated latest vibration point information to each vehicle, and automatically update the contents of the vibration point recording means of each vehicle to the latest information A fourth object is to provide a system.

[0013]

SUMMARY OF THE INVENTION In order to achieve the first object, the present invention provides a vibration detecting means for detecting a change in acceleration due to vibration of a road surface or an impact from a road surface, and a GPS.
Own vehicle position positioning means for acquiring the positioning information of the vehicle and various information for correcting the positioning error of the GPS and positioning the vehicle position, and associating the vibration information of the detected vibration and the position information of the point with the map information. By providing the vibration point recording means for recording, the vibration point information corresponding to each point on the map can be automatically recorded in the vibration point recording means irrespective of the user's input. Things.

According to the present invention, by using a gyro sensor, which is already used for improving the positional accuracy of a vehicle, as a road surface vibration sensor, road surface vibrations that cause uncomfortable driving or adverse effects on the host vehicle can be obtained. By automatically acquiring the vibration position information of the point where the severe vibration occurred by the own vehicle position positioning means and recording it in the on-vehicle vibration point recording means, the user can automatically record the vibration point information without inputting it. Is obtained.

Further, in order to achieve the second object, the present invention provides a navigation means for guiding and guiding a recommended route to a destination, and a method of reading vibration point information which has detected a vibration from vibration point recording means and recommending it. Vibration point passage prediction means for predicting that there is a vibration point on the route, and vibration point passage warning means for warning the driver of the passage of the vibration point when the vehicle is expected to pass the vibration point When a vehicle is expected to pass on a previously recorded vibration recording point, a warning is issued shortly before approaching the vibration recording point.

According to the present invention, a warning is issued to the driver during the navigation guidance before the vehicle approaches the vibration recording point recorded in the on-vehicle navigation device. An in-vehicle navigation device that can alert the user in advance and contributes to a safe driving operation can be obtained.

In order to achieve the third object, the present invention provides a navigation means for guiding and guiding a recommended route to a destination, and a recommendation for avoiding a vibration point obtained from recorded vibration point information. A vibration recording point search avoidance means for searching a route, and in a search for a guidance route, when a vehicle is expected to pass a recorded vibration detection point, a recommended route to avoid the vibration point is searched. And re-guided.

According to the present invention, when searching for a guidance route to a destination, a route avoiding a vibration recording point is searched for, so that a stable route with little vibration and high quietness is used. An in-vehicle navigation device that can be used is obtained.

According to another aspect of the present invention, there is provided a navigation device according to the present invention for guiding and guiding a recommended route to a destination, and vibration information or vibration position recording detected by a vibration detecting means. External transmission means for transmitting vibration point information recorded in the means to the outside, local vibration point information receiving means for receiving vibration point information transmitted from a plurality of vehicles having the external transmission means, and local vibration point information An information collection center that collects and manages vibration point information obtained from the receiving means and centrally manages it.The information collection center updates and integrates vibration point information collected from each vehicle with new information on the vibration detection time, and integrates the latest wide area. A latest wide area vibration point information generating means for generating vibration point information, a wide area vibration point information transmitting means for downloading the generated latest wide area vibration point information to each vehicle, A vibration point record updating means for comparing the wide area vibration point information received from the area vibration point information transmitting means with the vibration point information recorded in the vibration point recording means mounted on the vehicle and updating the recorded content to the latest information. The information collection center updates the vibration point information collected by a plurality of vehicles having transmission / reception functions as the latest vibration point information, and downloads the latest vibration point information for each vehicle. .

According to the present invention, when outdated information exists in an untraveled area or recorded vibration point information, a reliable warning can be issued by updating to the latest vibration point information. An in-vehicle navigation device is obtained.

As described above, the vibration point can be automatically recorded without previously recording the vibration point information on the traveling route on the navigation disk or manually inputting by the user. When passing, the driver is warned that vibration is expected in front of the vibration point, so that the driver can handle the driving operation according to the road surface conditions with plenty of time. It can contribute to safe driving.

[0022]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 of the present invention comprises: a vehicle position measuring means for measuring the position of a vehicle; a vibration detecting means for detecting a vibration state received by the vehicle during traveling; Vibration factor determination means for determining the cause of the vibration detected by the vibration detection means, and vibration point recording means for recording the detected vibration information and the vehicle position information of the detection point,
When the vibration factor is determined by the vibration factor determination means to be a change in the road surface condition, the detected vibration information and the vehicle position information of the detection point are automatically recorded. By automatically recording the vibration point information of the position where the vibration was detected at the time of detection, the position record of a point of interest such as the vibration occurrence point is automatically recorded without bothering the driver Has the effect of being able to

According to a second aspect of the present invention, when the own vehicle passes a vibration point recorded in the vibration point recording means, the vibration information is different from the vibration information recorded in the vibration point recording means. Or a vibration point record updating unit that updates or deletes the vibration information when no vibration is detected, and when the vehicle passes the point where the previous vibration was recorded again, the strength of the vibration is different. If the vibration is not detected, the vibration information recorded in the vibration point recording means is updated to the latest vibration information, so that the latest vibration point information can be recorded and stored in the in-vehicle navigation device. Have.

According to a third aspect of the present invention, there is provided an obstacle avoiding operation determining means for determining that a change in acceleration caused by a sudden operation of the vehicle due to driving is an avoiding operation from a dangerous object. If the detected change in acceleration is caused by a sudden driving operation due to the avoidance action from the point of interest visually recognized by the driver, the emergency avoidance operation point while traveling can be performed even if the driver does not directly pass through unevenness on the road surface. Can be recorded as a point of caution.

According to a fourth aspect of the present invention, there is provided a navigation means for guiding and guiding to a desired destination, and a method of following a guidance route provided by the navigation means or traveling on an arbitrary route other than the guidance route. A vibration recording point passage predicting means for predicting that the vehicle will pass on the vibration recording point recorded in the vibration point recording means, and a vibration for issuing a warning when the vehicle is expected to pass on the vibration recording point. Passing warning means, and when the vehicle is expected to pass the vibration recording point by the vibration recording point passage predicting means, the vibration point passing warning means is expected to pass the vibration point. And warn the driver in advance, so that sudden road changes can be dealt with in advance with a margin,
It has the effect of contributing to safe running.

According to a fifth aspect of the present invention, the risk determining means for determining the risk of the vibration detected by the vibration detecting means in accordance with a preset risk, and the risk determining means determines the risk. It is provided with danger level warning means for giving a warning according to the degree of danger, by judging the degree of danger of vibration and issuing a warning according to the degree of danger,
The driver can grasp the strength of the vibration in advance, and has an effect that a proper driving operation with a margin can be performed.

[0027] The invention according to claim 6 of the present invention is characterized in that, when the own vehicle is predicted to pass the vibration detection point recorded by the determination of the vibration recording point passage predicting means,
It is provided with a vibration point search avoidance means for searching for a route to avoid the vibration point and guiding again, and when searching for a recommended route to a desired destination, a route passing through the recorded vibration point is By performing a route search with the avoidance condition of the vibration point added, such as lowering the selection priority and not selecting as a recommended route as much as possible, there is an effect that it is possible to guide along a route that does not pass through the vibration point.

According to a seventh aspect of the present invention, when the vehicle is predicted to pass the recorded vibration detection point by the determination of the vibration recording point passage predicting means, the vehicle travels. Vehicle speed automatic control means for automatically controlling the speed, and immediately before passing the vibration recording point recorded in the vibration point recording means, passing the vibration recording point recorded in the vibration recording point passage predicting means. Is expected, by automatically controlling the speed of the own vehicle to a speed that can safely pass, it is possible for the driver to cope with sudden road surface changes in advance without being aware, It has the effect of contributing to safe running.

According to an eighth aspect of the present invention, there is provided a vehicle-mounted navigation device according to the first, second, third, fourth, fifth, sixth or seventh aspect of the present invention, and a vibration point recording apparatus for recording vibration point information. Means, external vibration transmitting means for transmitting the vibration point information recorded in the vibration point recording means from the vehicle to the outside, and vibration point information receiving means for receiving the vibration point information from outside the vehicle; The means records vibration point information acquired from the on-vehicle navigation device,
Vibration point information received from the outside is recorded. Vibration point information recorded in the own vehicle is transmitted to the outside by wireless communication, collectively processed, and wide-range vibration point information can be wirelessly received. It has the action of:

According to a ninth aspect of the present invention, there is provided an information collection center for receiving and collecting and updating the vibration point information transmitted to the outside of the vehicle, and transmitting the updated information to the vehicle. There is provided an information collection center for collectively processing the vibration point information transmitted to the outside of the vehicle, and has an effect that the latest vibration point information can be automatically received.

According to a tenth aspect of the present invention, the vehicle compares the vibration point information received from the information collection center outside the vehicle with the vibration point information recorded in the vibration point recording means. It has vibration point record updating means for updating the recorded content to the latest information, and compares the vibration point information received from the external information collection center with the vibration point information recorded in the vibration point recording means. If it is different, by updating to the received vibration point information, it is possible to always grasp the new vibration point, and even if there is information that is out of date in the untraveled area or the stored vibration point information, it will be updated to the latest By updating the vibration point information, it is possible to provide a highly reliable warning.

According to an eleventh aspect of the present invention, the road information communication system includes a bidirectional base station for relaying transmission and reception between a plurality of vehicles equipped with the on-vehicle navigation device and the information collection center. The information collection center includes a wide-range vibration point information generating unit that collects vibration point information received from the on-vehicle navigation devices of the plurality of vehicles and generates latest vibration point information, and includes the latest vibration point information. Is transmitted to each vehicle by relaying the two-way base station.Vibration point information transmitted from a plurality of vehicles can be collected and the latest vibration point information in a wide area can be grasped. By being able to return and receive the wide area vibration point information, the vibration point record of each vehicle can always be updated to the latest vibration point information,
Further, there is an effect that the vibration point in the untraveled area can be uploaded.

According to a twelfth aspect of the present invention, a vehicle-mounted navigation device mounted on a vehicle detects road surface vibrations, measures the position of the vehicle where the road surface vibrations are detected, and detects vibration points together with the detected road surface vibration information. Recorded in the vibration point recording means as information, transmitting the vibration point information to the outside of the vehicle, receiving and collecting the vibration point information transmitted to the outside of the vehicle by the information collection center, from the collected vibration point information to the latest Generating the vibration point information, transmitting the latest vibration point information from the information collection center to each vehicle, and updating the information of the vibration point recording means of each vehicle to the latest vibration point information. When the vibration is detected, the vibration point information of the position where the vibration is detected is automatically recorded,
By processing the vibration point information collectively at the information collection center to generate the latest vibration point information and transmitting it to each vehicle, the vibration point information of each vehicle can be automatically updated to the latest one. Has an action.

Hereinafter, embodiments 1 to 10 of the present invention will be described in detail with reference to the accompanying drawings and FIGS. 1 to 21. (Embodiment 1) First, an on-vehicle navigation device according to Embodiment 1 of the present invention will be described with reference to FIG. FIG. 1 is a block diagram showing a configuration of the on-vehicle navigation device according to Embodiment 1 of the present invention. In the on-vehicle navigation device shown in FIG. 1, reference numeral 100 denotes a control unit which is a control center of the on-vehicle navigation device; 101, a vehicle position information obtaining unit for obtaining various information required for positioning of the vehicle position; As a GP
There are a GPS receiving device that receives a GPS signal transmitted from the S satellite, a DGPS, a gyro sensor and a speed pulse sensor that acquire information for correcting a positioning error of the GPS signal, and the like.

Reference numeral 102 denotes the vehicle position information acquiring means 10.
The self-positioning means 103 for calculating the latitude and longitude information of the own vehicle from the positioning information obtained from 1 is provided with a vibration of the road surface which gives discomfort during traveling or a shock from the road surface which adversely affects the own vehicle. As the vibration detecting means and the vibration detecting means 103 for detecting a change in acceleration applied to the own vehicle from each direction, an acceleration sensor dedicated to vibration detection or a gyro sensor for correcting positional accuracy already mounted on the vehicle may be used. A / D conversion means 104 quantizes an analog vibration signal detected by the vibration detection means 103 into a digital quantity and converts it into vibration data, and 105 a memory means for temporarily storing the A / D converted vibration data , 1
Reference numeral 06 analyzes the vibration data stored in the memory means 105 by correlating the vibration data with a predetermined threshold or a template of an expected vibration signal. The vibration recorded in the vibration data is caused by a sudden change in the road surface condition. This is a vibration factor determining means for determining whether or not the vibration is a vibration.

When the vibration factor judging means 106 judges that the vibration is caused by road surface fluctuation, the position information 107 of the point where the vibration is detected is acquired from the vehicle position positioning means 102, and the position information and the detected position information are detected. Vibration point recording means for recording and storing the vibration information relating to the generated vibration in association with the map information obtained from the electronic map. Examples of the vibration point recording means 107 include a large-capacity optical storage medium such as a DVD and an MO, a recording memory such as an IC card, and a magnetic storage device. The recording medium is a navigation disk on which map information is already recorded. Is also good.

That is, the on-vehicle navigation device according to the first embodiment uses the vibration detecting means 103 to detect a change in acceleration given to the host vehicle caused by a change in the road surface condition such as unevenness on the running road surface or a pavement break. The changed acceleration is quantized by the A / D converter 104 and temporarily recorded in the memory means 105 as vibration data, and the vibration data recorded in the memory means 105 is analyzed by the vibration factor determination means 106 to analyze the vibration factors and stable running. It is determined that the vibration has a bad influence on the vehicle, and if the vibration is determined to have a bad influence on the traveling, the vibration factor of the point where the vibration is detected and the position information obtained from the vehicle position positioning means 102 are used as the vibration information as the vibration point. This is recorded in the recording means 102 and stored.

Next, the operation of the vehicle-mounted navigation device according to the first embodiment of the present invention will be described with reference to FIG. First, during traveling, the acceleration applied to the own vehicle is detected by the vibration detecting means 103, and the detected acceleration value is set to A.
The quantized change in acceleration is stored in the memory means 105 as time-series vibration data. The vibration data stored in the memory means 105 is
The vibration factor is determined by a determination formula for determining that the vibration is caused by the road surface variation in the vibration factor determination means 106, or the acceleration factor change data of the vibration caused by the road surface variation is previously used as a template, and the degree of correlation becomes equal to or higher than a certain level. Or when the power of the vibration value is equal to or higher than the threshold level, it is determined that the detected change in acceleration is vibration due to road surface fluctuation.
Will be notified.

Here, the same effect can be obtained even if the memory means 105 is directly connected to the vibration factor judging means 106. When the vibration factor determination means 106 determines that the acceleration change is vibration due to road surface fluctuation, the current position calculated by the vehicle position measurement means 102, that is, the position information of the point where the vibration is detected, and the vibration information, that is, the detection Various kinds of information on the vibrations (the vibration information includes the time at which the vibration was detected, the peak value of the vibration, and the like) are recorded and stored in the vibration point recording means 107 by the control means 100.

Next, with reference to FIG. 2, the operation flow of the on-vehicle navigation device according to the first embodiment described above will be described. FIG. 2 is a flowchart showing the operation flow of the vehicle-mounted navigation device according to the first embodiment shown in FIG. First, in step F101, it is determined whether the vehicle position information acquisition unit 101 has detected a change in acceleration by the acceleration detection unit. If detected, the process proceeds to step F102, and if not detected, the process ends. In step F102, it is determined whether or not the detected change in acceleration is vibration due to road surface fluctuation. If it is determined that the vibration is caused by road surface fluctuation, the process proceeds to step F103, and otherwise proceeds to step F104. Step F
In 103, the coordinates of the point where the vibration determined to be the vibration due to the road surface fluctuation is detected are recorded. In step F104, an error in the measured position is corrected based on the detected change in acceleration.

As described above, according to the first embodiment of the present invention, a road surface vibration sensor or a gyro sensor incorporated in an on-vehicle device and used for improving vehicle position accuracy is used as a road surface vibration sensor. By automatically recording the position information and vibration information of the point where vibration that adversely affects the vehicle or vibration that causes discomfort to the occupant of the vehicle is automatically recorded in the on-board recording device, The vibration state and the position information of the vibration location can be automatically recorded without manually inputting the information or recording the information on the navigation disk in advance. In addition, since a gyro sensor already used in the vehicle-mounted device and used for the purpose of improving vehicle position accuracy can be used as a road surface vibration sensor, the vehicle-mounted navigation device can be configured at low cost.

(Embodiment 2) Next, referring to FIG.
The configuration of the on-vehicle navigation device according to Embodiment 2 of the present invention will be described. FIG. 3 is a block diagram showing a configuration of the on-vehicle navigation device according to Embodiment 2 of the present invention. In FIG. 3, reference numeral 208 denotes a vibration point record history search means for searching whether or not vibration information of the same point as the position information acquired from the vehicle position positioning means 202 is stored in the vibration point recording means 207; When it is found by the recording history search means 208 that the vibration information of the same point has already been recorded in the vibration point recording means 207, the vibration information of the own vehicle at that time and the vibration information recorded in the searched vibration point recording means 207 are recorded. If the vibration is detected and the vibration content is different from the past recorded content, the past vibration information is updated to the latest vibration information.If no vibration is detected, the past vibration information is updated. Is a vibration record updating means for deleting the vibration information recorded in the. The other components of the in-vehicle navigation device according to the second embodiment shown in FIG. 3 have the same reference numerals as those shown in FIG.

Next, the operation of the vehicle-mounted navigation device according to the second embodiment of the present invention will be described with reference to FIG. First, the vibration point recording history searching means 208 searches whether or not the vibration information of the same point as the position information acquired from the vehicle position positioning means 202 is stored in the vibration point recording means 207. Next, the vibration point record history search means 20
8, it is found that the vibration information of the same point has already been recorded in the vibration point recording means 207 by the vibration record updating means 209 and the vibration information of the own vehicle at that time is searched by the vibration point recording history search means 208. Is compared with the vibration information of the same point recorded in the vibration point recording means 207, and if the vibration is detected and the content of the vibration is different from the past recorded content, the difference between the past vibration information and the latest vibration information is used. Updates the information, and if no vibration is detected despite passing a point where vibration was recorded in the past, it is considered that the vibration point has been restored and the previously recorded vibration information is deleted I do.

Next, with reference to FIG. 4, the operation flow of the on-vehicle navigation device according to the second embodiment described above will be described. FIG. 4 is a flowchart showing the flow of the operation of the vehicle-mounted navigation device according to the second embodiment shown in FIG. First, in step F201, it is determined whether or not a change in acceleration has been detected by the vibration detecting means 203. If detected, the process proceeds to step F202,
If not, the process proceeds to step F208. Step F
At 202, it is determined whether or not the acceleration change is vibration due to road surface fluctuation. When it is determined that the vibration is caused by the road surface fluctuation, the process proceeds to step F203.
Proceed to 07. In step F203, it is determined whether or not the point where the vibration is detected is recorded in the vibration point recording unit 207. If it is recorded, the process proceeds to step F205,
If not, the process proceeds to step F204.

In step F204, the difference between the detected vibration information and the vibration information recorded in the vibration point recording means 207 is determined. If there is a difference, the process proceeds to step F206. If there is no difference, the process proceeds to step F207. In step F205, the coordinates of the point where the vibration was recorded are recorded in the vibration point recording means 207. In step F207, the positioning error is corrected based on the detected acceleration change. Step F
At 208, the point where the vehicle is currently traveling is determined by the vibration point recording means 20.
7 is determined. If it has been recorded, the process proceeds to step F209, and if not, the process ends. In step F209, the present location and the vibration information of the same point recorded in the vibration point recording means 207 are deleted from the recording.

As described above, according to the second embodiment of the present invention, when the previously recorded vibration recording point has been restored,
Or, when the vibration state changes, the vibration information at the same point that has already been recorded is automatically updated, so that the user does not directly delete or specify the update for the fluctuation of the road surface condition, It can be automatically updated to the latest vibration information.

(Embodiment 3) Next, referring to FIG.
The configuration of the on-vehicle navigation device according to Embodiment 3 of the present invention will be described. FIG. 5 is a block diagram showing a configuration of an on-vehicle navigation device according to Embodiment 3 of the present invention. In FIG. 5, reference numeral 306 denotes an obstacle avoiding operation determining unit that determines whether the detected change in acceleration is an operation of emergency avoiding an obstacle, and 307 denotes an obstacle avoiding operation determining unit 3.
This is a caution point recording means for recording position information and avoidance operation information of a point determined to be an obstacle avoidance operation by 06. The other components of the in-vehicle navigation device according to the third embodiment shown in FIG. 5 have the same reference numerals as those shown in FIG.

Next, the operation of the vehicle-mounted navigation device according to the third embodiment of the present invention will be described with reference to FIG. First, the traveling driver recognizes a dangerous substance on the traveling road surface and performs an emergency avoidance operation such as a sudden brake or a sudden steering wheel, thereby detecting the acceleration applied to the own vehicle by the vibration detecting means 30.
3 and A / D conversion 3
By quantizing by means of 04, the acceleration change is stored in the memory means 305 as time-series vibration data in which the acceleration change is recorded. The vibration data stored in the memory means 305 is determined by an obstacle avoidance operation determining means 306 by a determination formula for determining whether or not an acceleration change is caused by a sudden steering wheel or a sudden brake, or a vibration generated by an emergency avoidance operation in advance. In the case where the acceleration change data is used as a template and the degree of correlation is equal to or higher than a certain level, or when the power of the acceleration change value is equal to or higher than the threshold level, the detected acceleration change is due to the emergency avoidance operation. Is determined, the control means 300 is notified.

Here, the same effect can be obtained even when the memory means 305 is connected to the obstacle avoidance operation determining means 306 itself so as to directly determine the avoidance operation. When the obstacle avoidance determination unit 306 determines that the driver has performed the avoidance operation, the control unit 300 needs the current position detected by the own vehicle position positioning unit 302, that is, the position information of the point where the avoidance operation is detected. Attention point recording means 3
07 is recorded.

Next, with reference to FIG. 6, the flow of the operation of the on-vehicle navigation device according to the third embodiment described above will be described. FIG. 6 is a flowchart showing the flow of the operation of the vehicle-mounted navigation device according to the third embodiment shown in FIG. First, in step F301, it is determined whether or not a change in acceleration has been detected by an acceleration detecting unit (not shown). If detected, the process proceeds to step F302, and if not detected, the process ends. In step F302, it is determined whether or not the detected change in acceleration has been performed to avoid an obstacle due to the driving operation. If it is determined that the change is an acceleration change for avoiding an obstacle due to the driving operation, the process proceeds to step F303; otherwise, the process proceeds to step F3.
Go to 04. In step F303, the coordinates of the point where the obstacle avoidance operation has been performed are recorded, and in step F304, the error in the measured position is corrected based on the detected change in acceleration.

As described above, according to the third embodiment of the present invention, the detected acceleration change is determined by the obstacle avoidance operation determining means 30.
By determining whether or not the obstacle is caused by avoiding an obstacle according to step 6, a sudden change in acceleration of the vehicle operation is caused by an avoidance operation from a target that hinders traveling. Is determined, and the point can be recorded in the on-vehicle navigation device as the point of interest.

(Embodiment 4) Next, referring to FIG.
The configuration of the on-vehicle navigation device according to Embodiment 4 of the present invention will be described. FIG. 7 is a block diagram showing a configuration of an on-vehicle navigation device according to Embodiment 4 of the present invention. In FIG. 7, reference numeral 400 denotes control means which is a control center of the on-vehicle navigation device, 408 denotes a navigation means for notifying the driver of the current position of the vehicle to the driver and guiding the user to a desired destination by image or voice, and 409 denotes the current position of the vehicle A recommended route searching means 410 for calculating a recommended route from the vehicle to a desired destination is located at a vibration recording point recorded in the vibration detecting position recording means in the traveling direction of the vehicle, and predicts that the vehicle will pass through the point. This is means for predicting passage of a vibration recording point.

When the vibration recording point passage predicting means 410 predicts that the own vehicle passes over the point where the vibration is recorded, the user is warned by a screen display or voice output to the user that the vibration is passed. The vibrating point passing warning means and the vibrating point passing warning means 411 include a liquid crystal monitor, an LED, a warning display on a head-up display, a buzzer, a sound warning, and the like. In addition, 420 is a unit necessary for vibration detection described in the first to third embodiments of the present invention. In addition, each component of the on-vehicle navigation device according to the fourth embodiment shown in FIG. Since the suffix is the same as the suffix of the reference numeral shown in FIG. 1, the detailed description is omitted.

That is, the in-vehicle navigation device according to the fourth embodiment includes a recommended route searching means 409 for searching for a recommended route to a destination designated by the driver, and a destination displayed on the screen or by voice guidance along the recommended route. Navigation means 408 that guides the own vehicle to the vibration recording point on the recommended route, and when the distance to the vibration recording point approaches within a certain distance by the guidance, immediately before the own vehicle passes the vibration point. A vibration recording point passage estimating means 410 for determining that the vehicle is passing through the vibration recording point before passing the vibration recording point. The warning means 411 is provided.

Next, the operation of the vehicle-mounted navigation device according to the fourth embodiment of the present invention will be described with reference to FIG. First, during guidance of the guidance route by the navigation means 408 or during normal traveling without the navigation means 408, each time the positioning of the own vehicle position is determined, the vibration point recording means 407 is referred to When approaching a vibration point recorded as being within a certain distance on the following guiding route or on a straight line in the traveling direction, the vibration passage warning unit 411 notifies the control unit 400 of the start of a warning event, and A visual warning such as a screen display of a caution point or a warning message, blinking of an LED, and a sound warning such as "vibration is expected in the future" and "entering a gravel road" are issued.

Here, an example of a method of determining the approach to a vibration point by the vibration recording point passage prediction means 410 will be described with reference to FIGS. FIG. 9 is a diagram showing an example of approach determination for a vibration point when following a recommended route,
FIG. 10 is a diagram illustrating an example of a case where a vibration point exists outside the determination area when the recommended route is not set, and FIG. 11 is a diagram illustrating a case where the vibration point is approaching within the determination area where the recommended route is not set. It is a figure showing the example of.

In FIG. 9, when proceeding from the point 1 to the point 4, the coordinates of the point of interest need to be set in an area surrounded by a width W (W is a width not overlapping an adjacent path) on both sides from the center line on the recommended route line. If it is included, it is determined that there is a point of interest on the recommended route, and a warning is issued when the vehicle comes within a certain distance on the route from the own vehicle position as a starting point.

FIGS. 10 and 11 show examples of the approach determination when the recommended route is not set. In this case, an area having a width W centered on a line segment having a certain distance from the own vehicle position as a starting point in the traveling direction is defined as a determination area. As shown in FIG.
If there is a vibration point outside the determination area, no warning is given, and FIG.
As shown in FIG. 1, a warning is issued when the vibration point approaches a certain determination area.

Next, with reference to FIG. 8, the operation flow of the above-described on-vehicle navigation device according to the fourth embodiment will be described. FIG. 8 is a flowchart showing a flow of the operation of the vehicle-mounted navigation device according to the fourth embodiment shown in FIG. First, in step F401, it is determined whether the own vehicle is following the guidance route. If the vehicle is following the guidance route, the process proceeds to step F402; otherwise, the process proceeds to step F403. Step F
At 402, it is checked whether or not a vibration point exists within a certain distance on the guidance route from the current position. Step F403
In the case where there is no guide guidance, it is checked whether or not a vibration point exists within a certain distance in the traveling direction on the currently passing road. Proceeding to step F404 from step F402 or step F403, a vibration point is investigated as shown in the above-described determination method, and it is determined whether or not the recorded vibration detection point is included within a certain distance in the traveling direction. If there is a vibration detection point recorded within a certain distance, the process proceeds to step F405, and if there is no vibration detection point recorded within a certain distance, the process ends. Step F405
Then, a warning of driving caution is issued to the driver by the vibration point passage warning means 411.

As described above, according to the fourth embodiment of the present invention, the vibration point recorded and stored in the on-vehicle navigation device is reflected in the navigation, so that the vibration point exists in the traveling direction of the vehicle. By issuing a warning in advance by screen display or sound immediately before the vehicle passes, it is possible to provide navigation that can support safe traveling of the vehicle.

(Embodiment 5) Next, the configuration of a vehicle-mounted navigation device according to Embodiment 5 of the present invention will be described with reference to FIG. FIG. 12 shows Embodiment 5 of the present invention.
1 is a block diagram showing a configuration of an in-vehicle navigation device in FIG. In the in-vehicle navigation device shown in FIG. 12, 512 is a risk determining means for classifying the risk according to the type and strength of the recorded vibration, and 511 is a warning of the content according to the risk determined by the risk determining means 512. Is a warning means according to the degree of risk of performing. In addition, since the last two digits of the reference numerals of the respective components of the in-vehicle navigation device according to the fifth embodiment shown in FIG. 12 are the same as the last two digits of the reference numeral shown in FIG. 7, detailed description is omitted. I do.

Next, the operation of the vehicle-mounted navigation device according to the fifth embodiment of the present invention will be described with reference to FIG. First, during guidance of a guidance route by the navigation means 508 or during normal traveling without the navigation means, the vibration point recording means 507 is provided at regular intervals.
To determine whether there is a vibration point within a certain distance on the guidance route or on the road in the traveling direction from the own vehicle position, and when approaching the vibration point, the risk degree determination means 512 The level of danger is determined in accordance with the cause of the vibration, such as the level of the vibration, the level difference on the road surface, or the bad road surface. The danger-based warning means 511 is a danger determination means 5
Then, the control unit 500 is notified of the start of the warning event according to the degree of risk obtained in step 12 to notify the start of the warning event. For example, the vibration level can be expressed numerically,
Terms such as "strong" and "dangerous" are used. Alternatively, prepare warning data such as "Strong vibration is expected due to the step ahead", "Weak vibration is expected to continue due to bad road surface ahead", etc., and a more detailed warning is given for each danger level Do.

Next, with reference to FIG. 13, the flow of the operation of the vehicle-mounted navigation device according to the fifth embodiment described above will be described. FIG. 13 is a flowchart showing a flow of the operation of the vehicle-mounted navigation device according to the fifth embodiment shown in FIG. First, step F501
In, it is determined whether or not the own vehicle is following the guidance route. If the vehicle is following the guidance route, the process proceeds to step F502; otherwise, the process proceeds to step F503. In step F502, it is checked whether a vibration point exists within a certain distance on the guidance route from the current position. The description of the operation example of step F502 will be given in the description of the fourth embodiment.
Since it is the same as that described according to FIG. 9, further description is omitted.

Next, in step F503, it is checked whether or not a vibration point exists within a certain distance in the traveling direction on the currently passing road from the current position. Step F
The description of the operation example of 503 is the same as that described with reference to FIGS. 10 and 11 in the description of the fourth embodiment.
Further description is omitted. In Step F504, it is determined whether or not there is a recorded vibration point within the investigated fixed distance. If it is determined that there is a vibration point recorded within a certain distance, the process proceeds to step F505. If there is no vibration point recorded within a certain distance, the process ends. In step F505, a warning content corresponding to the vibration content is selected from the vibration record, and a warning for each vibration content is notified to the driver. Step F506
At Step F508, a warning corresponding to each vibration level obtained at Step F505 is issued.

As described above, according to the fifth embodiment of the present invention, it is possible to notify the cause of the vibration in more detail by the warning means 511 according to the degree of danger, so that the degree of correspondence to the driving operation can be grasped more precisely. A navigation device can be provided.

(Embodiment 6) Next, with reference to FIG. 14, the configuration of a vehicle-mounted navigation device according to Embodiment 6 of the present invention will be described. FIG. 14 shows Embodiment 6 of the present invention.
1 is a block diagram showing a configuration of an in-vehicle navigation device in FIG. In the in-vehicle navigation device shown in FIG. 14, a search route 611 lowers the search priority of a route in which the vibration points recorded in the vibration point recording unit 607 overlap each other, and recommends a route that does not pass through the vibration point as much as possible. Is vibration point search avoidance means for searching for.
In addition, each component of the vehicle-mounted navigation device according to the sixth embodiment shown in FIG.
Since the same reference numeral as the last two digits of the symbol shown in FIG.

Next, the operation of the vehicle-mounted navigation device according to the sixth embodiment of the present invention will be described with reference to FIG. First, when searching for a recommended route to the desired destination,
If the vibration points recorded in the vibration point recording means 607 overlap with the nodes constituting the path searched by the recommended path search means 609, the vibration point search avoidance means 611 lowers the recommended order of the path. Then, a route that avoids the point where the vibration is detected is obtained as a recommended route. When it is unavoidable to pass the vibration point to reach the destination, the driver is warned as described in the fourth and fifth embodiments.

Next, with reference to FIG. 15, the operation flow of the vehicle-mounted navigation device according to the sixth embodiment described above will be described. FIG. 15 is a flowchart showing the flow of the operation of the vehicle-mounted navigation device according to the sixth embodiment shown in FIG. First, Step F601
Then, a search for a recommended route is started by designating a destination. In step F602, a recommended route to the destination is searched. If there is a searchable route, the process proceeds to step F603. If there is no searchable route, the process proceeds to step F60.
Proceed to 4. In step F603, it is determined whether the searched guidance route candidate and the vibration point recorded in the vibration point recording unit 605 overlap. If a vibration recording point exists on the search route candidate, the process proceeds to step F606, and if not, the process proceeds to step F605. Step F60
In 5, the guidance route candidate is determined as a guidance route. In step F606, the process returns to step F602 to search for a guidance route again.

As described above, according to the embodiment of the present invention, while searching for a recommended search route, a recommended route guidance that can avoid a point where vibration is recorded by the vibration point search avoiding means 611 is provided. It can be carried out.

(Embodiment 7) Next, the configuration of a vehicle-mounted navigation device according to Embodiment 7 of the present invention will be described with reference to FIG. FIG. 16 shows Embodiment 7 of the present invention.
1 is a block diagram showing a configuration of an in-vehicle navigation device in FIG. In the on-vehicle navigation device shown in FIG. 16, reference numeral 711 denotes a vehicle speed automatic control means for automatically controlling the approach speed of the vehicle to an appropriate speed just before passing through the vibration recording point. In addition, the components of the in-vehicle navigation device according to the seventh embodiment shown in FIG. 16 have the same last two digits as the reference numerals shown in FIG. I do.

Next, the operation of the vehicle-mounted navigation device according to the seventh embodiment of the present invention will be described with reference to FIG. First, during guidance of a guidance route by the navigation means 708 or during normal traveling without the guidance and guidance means, each time the positioning of the own vehicle position is determined, the vibration point recording means 707 is referred to It is determined whether or not a vibration point exists within a certain area on the guidance route or on the road in the traveling direction. If the vibration point exists, the vehicle speed automatic control means 711 determines the traveling speed of the own vehicle before passing the point of interest. Then, automatic braking is performed at an appropriate speed that does not cause discomfort due to vibration. At this time, a warning to adjust the vehicle speed may be sent to the driver.

Next, the flow of the operation of the above-described on-vehicle navigation device according to the seventh embodiment will be described with reference to FIG. FIG. 17 is a flowchart showing the flow of the operation of the vehicle-mounted navigation device according to the seventh embodiment shown in FIG. First, Step F701
In, it is determined whether or not the own vehicle is following the guidance route. If the vehicle is following the guidance route, the process proceeds to step F702; otherwise, the process proceeds to step F703. In step F702, it is determined whether or not a vibration point exists within a certain distance on the guidance route from the current position.
At 03, it is checked whether or not the vibration point exists within a certain distance in the traveling direction of the currently passing road from the current position. The operation examples of Step F702 and Step F703 are the same as those described with reference to FIGS. 9 to 11, respectively. In step F704, it is determined whether or not the recorded vibration point exists within the investigated fixed distance. If the recorded vibration point is within a certain distance, the process proceeds to step F705, and if the recorded vibration detection point is not within a certain distance, the process ends. In step F705, the vehicle speed is controlled to an appropriate speed.

As described above, according to the seventh embodiment of the present invention, during driving, shortly before passing through a vibration point recorded in the on-vehicle navigation device, the traveling speed of the own vehicle causes an uncomfortable feeling with little impact. It is possible to automatically enter the point of interest at an appropriate speed without depending on the driver's operation by automatically braking the vehicle so that the speed is not felt.

(Eighth Embodiment) Next, a configuration of a road information communication system using an in-vehicle navigation device according to an eighth embodiment of the present invention will be described with reference to FIG. FIG. 18 is a block diagram showing a configuration of a road information communication system using the on-vehicle navigation device according to the eighth embodiment of the present invention. In the road information communication system shown in FIG.
801 is an external transmission means for transmitting vibration point recording data recorded by the on-vehicle navigation apparatus 800 to the outside, 802 is a vibration point recording means for recording vibration point information, and 803 is a vibration point recording means for recording vibration point information. Vibration information collecting means for receiving vibration point information transmitted from a vehicle provided with the in-vehicle navigation device 800 installed outside the vehicle. Note that the vibration point recording means 802 may be built in the in-vehicle navigation device 800.

Next, the operation of the vehicle-mounted navigation device according to the eighth embodiment of the present invention will be described with reference to FIG. First, vibration point information such as vibration position information (the vibration position information is the latitude and longitude of the point where the vibration was recorded) recorded in the vibration recording means 802 of the in-vehicle navigation device 800 and the time at which the vibration was detected are stored at regular time intervals or in certain intervals. Each time, an external transmission unit 801 for transmitting vibration point information such as a car phone, radio wave radio, and optical communication is transmitted to a vibration information collection unit 803 installed outside the vehicle.

As described above, according to the eighth embodiment of the present invention, the vibration point information recorded by the on-vehicle navigation device in the first to seventh embodiments can be transmitted to the outside and used.

(Embodiment 9) Next, with reference to FIG. 19, the configuration of a road information communication system using the on-vehicle navigation device of the present invention in Embodiment 9 of the present invention will be described. FIG. 19 is a block diagram showing a configuration of a road information communication system using the on-vehicle navigation device according to the ninth embodiment of the present invention. In the road information communication system shown in FIG.
Any of the in-vehicle navigation devices described in the item 901;
Is a wide area vibration point information transmitting unit that is installed outside the vehicle and transmits vibration point information for the traveling area to the on-vehicle navigation device in the ninth embodiment. 902 is vibration point information transmitted from the wide area vibration point information transmitting unit 901. 903 is a vibration point recording means for recording vibration point information, 904 is a vibration point recording information recorded in the vibration point recording means 903 of the on-vehicle navigation device, and a wide area vibration point information receiving means. 902
Is a vibration point record updating unit that updates using the latest vibration point information received in step (1). The vibration point recording means 90
3 may be built in the in-vehicle navigation device 900.

Next, the operation of the vehicle-mounted navigation device according to the ninth embodiment of the present invention will be described with reference to FIG. First, the vibration point information transmitted from the external wide area vibration point information transmitting means 901 is transmitted to the wide area vibration point information receiving means 9.
02 is received. Here, the vibration point record updated by the vibration point record updating means 904, the vibration point record recorded in the vibration point recording means 903 mounted on the in-vehicle navigation device 900, and the latest vibration point information received by the wide area vibration point information receiving means 902. And updates the contents of the vibration point recording means 903 to the latest information.

As described above, according to the ninth embodiment of the present invention, the latest vibration information is received by the wide area vibration point information receiving means 902, and the recorded contents of the on-vehicle navigation device are updated as needed. Can always be warned about new road conditions.

(Embodiment 10) Next, with reference to FIG. 20, a road information communication system using an on-vehicle navigation device of the present invention in Embodiment 10 of the present invention will be described. FIG. 20 is a block diagram showing a configuration of a road information communication system using the in-vehicle navigation device according to the tenth embodiment of the present invention. 20, reference numeral 1000 denotes a vehicle on which the on-vehicle navigation device (Embodiments 1 to 7) described in FIGS.
Reference numeral 01 denotes a two-way communication base station used for transmitting and receiving the vibration point information described in FIGS. 18 and 19, a wide area vibration point information transmitting unit 1002 for transmitting information to the vehicle, and a local vibration point for receiving information from the vehicle. Information receiving means 1003;
The information collection center 1005 collects the wide-range vibration point information transmitted via the communication device 1 and collects the collected local vibration point information, calculates the difference based on the time information, and generates the latest vibration point information of the corresponding area. The latest wide area vibration point information generating means 1006 is the latest wide area vibration point information generating means 1005
This is a record updating unit that compares the latest wide-area vibration point information generated by the base station 1001 and received via the transmitting unit of the base station 1001 with the content recorded in the recording unit to update the conventional recording content to the latest information.

Referring to FIG. 20, a communication method in a single vehicle will be described as an operation of the road information communication system using the on-vehicle navigation device according to Embodiment 20 of the present invention. First, the information on the vibration detection point recorded in the on-vehicle navigation device mounted on the vehicle is transmitted to the local vibration point information receiving means 1003 when passing through the two-way communication base station 1001. The vibration detection information received by the local vibration point information receiving means 1003 is collected at the information collection center 1004. Information collection center 1004
The latest wide-area vibration point information generation unit 1005 generates the latest vibration point information from the vibration detection information collected in the step S1. At this time, when the vibration detected point is the same point but different vibration information, the vibration point information is reconstructed by adopting the newer time and the latest vibration point information is generated. The generated latest vibration information is transmitted to the vehicle 1000 from the wide area vibration point information transmitting means 1002 of the two-way communication base station 1001. The vehicle 1000 receives the latest vibration point information transmitted from the transmission unit 1003,
The recording point updating unit 1001 updates the vibration point information that has been recorded so far, and uses the updated vibration point information to issue a road surface fluctuation warning.

(Embodiment 11) Next, with reference to FIG. 21, a road information sharing system using an on-vehicle navigation device of the present invention in Embodiment 11 of the present invention will be described. FIG. 21 is a block diagram showing a configuration of a road information sharing system using an in-vehicle navigation device according to the eleventh embodiment of the present invention. Embodiment 1
In section 1, a communication method for sharing vibration point information with a plurality of vehicles using the on-vehicle navigation device of the present invention will be described.

In FIG. 21, 1006A and 1006B
To 1006Z are area A, area B to area Z, respectively.
1 is a group of vehicles equipped with each of the in-vehicle navigation devices that are traveling. 1007A, 1007B to 1007Z
Are two-way communication base stations A, B to Z corresponding to areas A, B to Z, respectively. Here, there may be a plurality of two-way communication base stations in each area, but it is assumed that each base station is used in each area. For example, the vehicle group 100 in the area A
A plurality of vehicles 6A record the vibration information in the area A and transmit the recorded contents to the two-way communication base station 1007A. Similarly, vibration point information recorded on a vehicle traveling in the area B is transmitted to the two-way communication base station 1007B.

Next, with reference to FIG. 21, a description will be given of a communication method by a plurality of vehicles as an operation of the vibration point information sharing system using the on-vehicle navigation device according to the eleventh embodiment of the present invention. First, a code indicating each transmission area is added to the information to be transmitted so that the transmission area of the vehicle group that is the transmission source can be distinguished. The vibration point information of each area received by each of the two-way communication base stations 1007A, 1007B to 1007Z is collected at the information collection center 1008. The information collection center 1008 uses the collected vibration point information and reconstructs the latest vibration point information for each area by the latest vibration point information generation means 1009.
The reconstructed latest vibration point information is distributed to the two-way communication base stations 1007A, B to Z in each area, and downloaded to the respective vehicle groups 1006A, B to Z traveling in the area. Each of the vehicle groups 1006A, B to Z updates the vibration position information recorded in the vibration recording unit by comparing it with the latest vibration point information downloaded, and uses the updated vibration position information for the vibration prediction warning.

As described above, according to the eleventh embodiment of the present invention, the latest vibration point information of a specific area can be grasped by collecting the vibration point information transmitted from a plurality of vehicles. By transmitting the latest vibration point information of the area to the vehicle having the return receiving means, the caution point record of each vehicle is updated using the latest vibration point information, and furthermore, the caution of the untraveled area A vibration point information sharing system capable of downloading a point can be provided.

The points of interest described in the above embodiments of the present invention include steps on the road surface, changes from pavement to gravel road,
Anything that affects the running of the vehicle, such as depression, manholes, speed reduction steps, ruts, etc. due to deterioration of the pavement road surface.

[0087]

According to the present invention, the gyro sensor built in the on-vehicle unit is used as a road surface vibration sensor, and the road surface vibration which gives discomfort to the vehicle or the vehicle is affected. Automatic vibration is detected and detected by the GPS device and automatically recorded in the on-board recorder together with the position information of the point where the vibration occurred. Vibration point information corresponding to the map can be automatically recorded without manual input by the user, so when driving past that point the driver will be notified that vibration is expected in front of the vibration point Warning to the driver, it is possible to respond with a margin to the driving operation according to the conditions of the running road surface and contribute to safe driving driving

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of an in-vehicle navigation device according to Embodiment 1 of the present invention;

FIG. 2 is a flowchart showing the operation flow of the vehicle-mounted navigation device according to the first embodiment shown in FIG. 1;

FIG. 3 is a block diagram illustrating a configuration of a vehicle-mounted navigation device according to a second embodiment of the present invention;

4 is a flowchart showing an operation flow of the vehicle-mounted navigation device according to the second embodiment shown in FIG. 3,

FIG. 5 is a block diagram showing a configuration of a vehicle-mounted navigation device according to a third embodiment of the present invention;

6 is a flowchart showing the operation flow of the vehicle-mounted navigation device according to the third embodiment shown in FIG. 5,

FIG. 7 is a block diagram showing a configuration of a vehicle-mounted navigation device according to a fourth embodiment of the present invention;

8 is a flowchart showing an operation flow of the vehicle-mounted navigation device according to the fourth embodiment shown in FIG. 7;

FIG. 9 is a diagram showing an example of approach determination for a vibration point when following a recommended route;

FIG. 10 is a diagram illustrating an example of a case where there is a vibration point outside a determination area when a recommended route is not set,

FIG. 11 is a diagram illustrating an example of a case where a vibration point approaches a determination area where a vibration point is present when a recommended route is not set;

FIG. 12 is a block diagram showing a configuration of a vehicle-mounted navigation device according to a fifth embodiment of the present invention;

FIG. 13 is a flowchart showing the flow of the operation of the vehicle-mounted navigation device according to the fifth embodiment shown in FIG. 12;

FIG. 14 is a block diagram showing a configuration of a vehicle-mounted navigation device according to a sixth embodiment of the present invention;

FIG. 15 is a flowchart showing the flow of the operation of the vehicle-mounted navigation device according to the sixth embodiment shown in FIG. 14;

FIG. 16 is a block diagram showing a configuration of a vehicle-mounted navigation device according to a seventh embodiment of the present invention;

17 is a flowchart showing an operation flow of the vehicle-mounted navigation device according to the seventh embodiment shown in FIG. 16;

FIG. 18 is a block diagram showing a configuration of a road information communication system using the on-vehicle navigation device according to the eighth embodiment of the present invention;

FIG. 19 is a block diagram showing a configuration of a road information communication system using the on-vehicle navigation device according to the ninth embodiment of the present invention;

FIG. 20 is a block diagram showing a configuration of a road information communication system using the on-vehicle navigation device according to the tenth embodiment of the present invention;

FIG. 21 is a block diagram showing a configuration of a road information sharing system using the on-vehicle navigation device according to the eleventh embodiment of the present invention;

FIG. 22 is a block diagram showing an example of a configuration of a conventional in-vehicle navigation device.

[Explanation of symbols]

REFERENCE SIGNS LIST 100 control means 101 own vehicle position information obtaining means 102 own vehicle position positioning means 103 vibration detection means 104 A / D conversion 105 memory means 106 vibration factor determination means 107 vibration point recording means 200 control means 201 own vehicle position information acquisition means 202 own Vehicle position positioning means 203 Vibration detection means 204 A / D conversion 205 Memory means 206 Vibration factor determination means 207 Vibration point recording means 208 Vibration point history search means 209 Vibration point record update means 300 Control means 301 Own vehicle position information acquisition means 302 Own Vehicle position positioning means 303 Vibration detection means 304 A / D conversion 305 Memory means 306 Obstacle avoidance operation determination means 307 Caution point recording means 400 Control means 401 Own vehicle position information acquisition means 402 Own vehicle position measurement means 407 Vibration point recording means 408 Navigator Application means 409 recommended route search means 410 vibration recording point passage prediction means 411 vibration point passage warning means 420 vibration detection means 500 control means 501 own vehicle position information acquisition means 502 own vehicle position positioning means 507 vibration point recording means 508 navigation means 509 recommended Route search means 510 Vibration recording point passage predicting means 511 Danger level warning means 512 Danger degree determination means 520 Vibration detection means 600 Control means 601 Own vehicle position information acquisition means 602 Own vehicle position positioning means 607 Vibration point recording means 608 Navigation means 609 Recommended route search means 610 Vibration recording point passage prediction means 611 Vibration point search avoidance means 620 Vibration detection means 700 Control means 701 Own vehicle position information acquisition means 702 Own vehicle position positioning means 707 Vibration point recording means 708 Navigator 8. Means 709 Recommended route searching means 710 Vibration recording point passage estimating means 711 Vehicle speed automatic control means 720 Vibration detecting means 800 In-vehicle navigation device 801 External transmitting means 802 Vibrating point recording means 803 Vibration information collecting means 900 In-vehicle navigation device according to claim 1 901 Wide-area vibration point information transmitting means 902 Wide-area vibration point information receiving means 903 Vibration point information recording means 904 Vibration point record updating means 1000 On-vehicle navigation apparatus according to the present invention 1001 Bidirectional communication base station 1002 Wide area vibration point information transmitting means 1003 Local vibration point information receiving means 1004 Information collection center 1005 Latest wide area vibration point information generating means 1006 Vehicle group equipped with in-vehicle navigation device running in area 1007 Two-way communication base station for two-way communication with vehicles traveling in the area 1008 Information collection center 1009 Latest vibration point information generation means 2000 Controller 2001 Locator 2002 GPS receiver 2003 Vehicle speed pulse sensor 2004 Gyro sensor 2005 Map database 2006 Terrain information 2007 Route Information 2008 Points of interest information 2009 Memory 2010 Points of interest input means 2011 Navigation means 2012 Display means 2013 Voice means 2014 Warning means

Claims (12)

[Claims] A vehicle position measuring means for measuring a vehicle position;
Vibration detecting means for detecting a vibration state received by the vehicle during traveling, vibration factor determining means for determining a factor of generation of vibration detected by the vibration detecting means, detected vibration information and vehicle position information of a detection point And a vibration point recording means for recording the vibration information and the detected vibration information and the own vehicle position information of the detection point when the vibration factor is determined to be a change in the traveling road surface state in the vibration factor determination means. An in-vehicle navigation device characterized in that the information is automatically recorded. 2. When the own vehicle passes a vibration point recorded in the vibration point recording means, the vibration information is different from the vibration information recorded in the vibration point recording means, or when no vibration is detected. 2. The on-vehicle navigation device according to claim 1, further comprising a vibration point record update unit that updates or deletes the vibration information. 3. An obstacle avoiding operation judging means for judging a change in acceleration caused by a sudden operation of the vehicle by driving as an avoiding operation from a dangerous object.
The in-vehicle navigation device according to the above. 4. A navigation means for guiding and guiding to a desired destination, and a vibration recorded in said vibration point recording means while following a guidance route provided by said navigation means or traveling on an arbitrary route other than the guidance route. Vibration recording point passage predicting means for predicting that the own vehicle passes on the recording point, and vibration passing warning means for issuing a warning when the own vehicle is expected to pass on the vibration recording point. The on-vehicle navigation device according to claim 1, 2 or 3, wherein: 5. A risk determining means for determining a risk of vibration detected by said vibration detecting means in accordance with a predetermined risk, and a risk for giving a warning corresponding to the risk determined by said risk determining means. The on-vehicle navigation device according to claim 4, further comprising another warning means. 6. When the own vehicle is expected to pass through a vibration detection point recorded by the determination of the vibration recording point passage predicting means, a vibration that searches for a route that avoids the vibration point and is re-guided. The in-vehicle navigation device according to claim 4 or 5, further comprising a point search avoiding unit. 7. A vehicle speed automatic control means for automatically controlling the traveling speed of the own vehicle when the own vehicle is predicted to pass the recorded vibration detection point by the judgment of the vibration recording point passage predicting means. The on-vehicle navigation device according to claim 4 or 5, further comprising: 8. A vehicle as claimed in claim 1, 2, 3, 4, 5, or 6.
Or a vehicle-mounted navigation device according to claim 7, vibration point recording means for recording vibration point information, external transmission means for transmitting the vibration point information recorded in the vibration point recording means from the vehicle to the outside, and vibration from outside the vehicle. Vibration point information receiving means for receiving point information, wherein the vibration point recording means records vibration point information acquired from the on-vehicle navigation device, and records vibration point information received from outside. Road information communication system. 9. The road information communication system according to claim 8, further comprising an information collection center for receiving and collecting and updating the vibration point information transmitted to the outside of the vehicle, and transmitting the updated information to the vehicle. system. 10. The vehicle according to claim 1, wherein said vehicle compares vibration point information received from an information collection center outside said vehicle with vibration point information recorded in said vibration point recording means and updates the recorded contents to the latest information. The road information communication system according to claim 8 or 9, further comprising a point record updating unit. 11. The road information communication system includes a bidirectional base station for relaying transmission and reception between a plurality of vehicles equipped with the on-vehicle navigation device and the information collection center, and the information collection center includes the plurality of vehicles. Has a wide area vibration point information generating means for collecting the vibration point information received from the vehicle-mounted navigation device of the vehicle and generating the latest vibration point information, relaying the latest vibration point information to the bidirectional base station The road information communication system according to claim 8, 9 or 10, wherein the information is transmitted to each vehicle. 12. A road surface vibration is detected by an in-vehicle navigation device mounted on a vehicle, a vehicle position at which the road surface vibration is detected is measured, and the detected road surface vibration information is recorded as vibration point information in vibration point recording means, The vibration point information is transmitted to the outside of the vehicle, the vibration point information transmitted to the outside of the vehicle is received and collected by an information collection center, and the latest vibration point information is generated from the collected vibration point information. And transmitting the latest vibration point information from the center to each vehicle and updating the information of the vibration point recording means of each vehicle to the latest vibration point information.