JP2004246631A - Travel support information presentation method - Google Patents

Travel support information presentation method Download PDF

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Publication number
JP2004246631A
JP2004246631A JP2003035911A JP2003035911A JP2004246631A JP 2004246631 A JP2004246631 A JP 2004246631A JP 2003035911 A JP2003035911 A JP 2003035911A JP 2003035911 A JP2003035911 A JP 2003035911A JP 2004246631 A JP2004246631 A JP 2004246631A
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JP
Japan
Prior art keywords
driving support
support information
driver
information
event
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2003035911A
Other languages
Japanese (ja)
Inventor
Toru Sakaihara
Akitoshi Shimura
明俊 志村
徹 酒井原
Original Assignee
Hitachi Ltd
株式会社日立製作所
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd, 株式会社日立製作所 filed Critical Hitachi Ltd
Priority to JP2003035911A priority Critical patent/JP2004246631A/en
Publication of JP2004246631A publication Critical patent/JP2004246631A/en
Application status is Pending legal-status Critical

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Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem of a travel support system wherein, under individual supply of travel support information to a driver from every information source, if many events occur simultaneously, many pieces of information are presented to the driver at a time to confuse the driver. <P>SOLUTION: Travel support information is classified by urgency and is, in the same class, presented to a driver with priority given to the warning object event that takes the shortest predicted time to occur so that priority is given in terms of time. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention presents driving assistance information such as accident information, fallen object information, road construction information, and traffic congestion information to a driver for a traveling vehicle such as an automobile in order to improve safety. At this time, the present invention relates to a driving support presentation method of selecting more urgent driving support information and presenting it with priority when a plurality of driving support information are input at the same time.
[0002]
[Prior art]
In order to improve safety, it is possible to provide a driver with information on an obstacle existing ahead in order to improve safety, as in a driving support device or a forward obstacle collision prevention system described in JP-A-2002-269699 (Patent Document 1). Has been devised. This allows the driver to take an action to avoid a dangerous event in advance. There are a wide variety of events to be notified to the driver. However, it is considered that each event is provided individually to the driver, and the case where a plurality of events occur at the same time is not particularly considered.
[0003]
[Patent Document 1]
JP-A-2002-269695
[Problems to be solved by the invention]
When a plurality of events occur simultaneously, it is important to select the most important event and inform the driver in order to make the driver's judgment appropriate. In the conventional driving support presentation method, there is a problem that a plurality of pieces of driving support information are presented and the driver is confused.
[0005]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, in the driving support presentation method of the present invention,
(1) Calculate a predicted time until an event to be avoided occurs when the driver does not take an avoidance action, based on travel assistance information input from the outside by wireless or the like or travel assistance information from an in-vehicle sensor. ,
(2) The one having the shortest calculation time is selected and presented to the driver with priority.
[0006]
BEST MODE FOR CARRYING OUT THE INVENTION
An embodiment of the present invention will be described. FIG. 1 shows an example of the overall configuration of the present invention. The vehicle 1 includes a wireless communication unit 32 that receives driving support information via wireless communication, in-vehicle sensors 341 and 342 that detect lane departure and an under-vehicle distance, an HMI unit 33 that presents driving support information to the driver 2, and these parts. And a control unit for controlling these parts. Roadside sensors 5 for detecting accident information, obstacles and stopped vehicles, traffic congestion information, and the like, access points 41 and 42 for transmitting driving support information from the sensors to vehicles, and roadside sensors as infrastructure for transmitting driving support information from outside. 5 and a network 6 connected to the access points 41 and 42.
[0007]
In the present invention, the driver's safety is ensured by appropriately presenting information from the roadside sensor 6 and the in-vehicle sensors 341 and 342 to the driver 2 through the HMI unit.
[0008]
FIG. 2 shows a driving support information presentation processing block. The control unit 31 receives the driving support messages from the wireless communication unit 32 and the sensors 341 and 342 in the vehicle, performs appropriate priority processing, and presents the message to the driver in the HMI unit 33.
[0009]
Before describing the details of the processing, first, a message format input from the wireless communication unit 32 and the in-vehicle sensors 341 and 342 to the control unit 31 will be described. FIG. 4 shows a format of a driving support message sent from the roadside sensor 5 to the access points 41 and 42 and the wireless communication unit 32. A message code 811, which indicates the type of the message, is included at the beginning, followed by a data body 812, which is the detailed content of the message, and a last field transmission source position 813, which includes the transmission source, ie, the position information (latitude and longitude) of the roadside sensor 5. FIG. 5 shows a format of a driving support message from the in-vehicle sensors 341 and 342. The message code 821 and the data body 822 include information having the same meaning as in the case of the roadside sensor 5. The calculated distance 823, which is the last field, includes the distance from the vehicle, not the position of the event.
[0010]
Returning to the description of FIG. 2, the classifier 311 classifies the driving support messages. That is, the events for which the urgency can be determined are separated and priorities are assigned irrespective of the time until the event occurs. This processing is performed using the classification judgment table shown in FIG. That is, classification is performed by the message code. That is, an event that leads to a direct accident such as a lane departure, an inter-vehicle distance shortage, an obstacle, a stopped vehicle, or the like is classified as a high-priority class 1. On the other hand, a class having a low possibility of directly leading to an accident, such as occurrence of traffic congestion or a small road surface friction coefficient, is assigned to a low priority class.
[0011]
The event occurrence time calculation units 3121 and 3122 calculate the time at which an event that has issued a warning as a driving support message may occur for the driving support messages classified by the classifier 311. In the case of the driving support message 81 from the roadside sensor 5, this is from the position of the transmission source and the position of the vehicle (here, it is assumed that the own position is known by the car navigation system) to the event position. Is calculated by using the own traveling speed. In the case of the travel support message 82 from the in-vehicle sensors 341 and 342, since the calculated distance 823 is included, it can be calculated using this value and the own travel speed. The calculated distance 823 will be described later.
[0012]
The integrated determination unit 313 sends a driving support message of a high class, or a message of short time until an event occurs in the case of the same class, to the HMI unit 33 and presents it to the driver 2. The HMI unit 33 presents the message for a certain time. When a driving support message having a higher priority is input, the driving support message is interrupted and presented. FIG. 8 shows an example of presentation of the HMI unit 33. The message is overlapped and displayed on the screen 331 of the car navigation system, and a warning message is presented by voice from the speaker 332.
[0013]
A method of calculating the calculated distance 323 of the driving support message 82 from the in-vehicle sensors 341 and 342 will be described with reference to FIGS. FIG. 6 shows a process flow 9 of the sensor. When the vehicle operates, an initialization process for the sensor is performed in a processing step 901, and sensing is started. In step 902, it is monitored whether an event has occurred. If the event has occurred, in step 903, the distance at which the event occurs from the host vehicle is calculated. For example, as shown in FIG. 7, when the sensing event is a lane departure, a calculation is made as to how far the vehicle will depart from the lane. If the inter-vehicle distance is too small, the inter-vehicle distance is itself. In addition, when the information such as the road surface friction coefficient is smaller than a predetermined value, the information is set as a predetermined converted distance. In this way, the in-vehicle sensors 341 and 342 can calculate the calculated distance, and can transmit the driving support message 82 to the control unit 31.
[0014]
【The invention's effect】
As can be understood from the above description, the driving support information in which the event will occur earlier than the present invention, that is, the most urgent one can be given to the driver with priority. Therefore, even when a plurality of pieces of driving assistance information are input, the most important information is presented, so that the user can use the driving assistance information without being confused, thereby improving driver safety. Is effective.
[Brief description of the drawings]
FIG. 1 is an overall configuration diagram of an embodiment of the present invention.
FIG. 2 is a block diagram of a driving support information presentation process according to the embodiment of the present invention.
FIG. 3 is a determination table for classifying a driving support message according to the embodiment of the present invention.
FIG. 4 is a diagram showing a format of a driving support message from the outside according to the embodiment of the present invention.
FIG. 5 is a diagram showing a format of a driving support message from an in-vehicle sensor according to the embodiment of the present invention.
FIG. 6 is a diagram showing a processing flow of an in-vehicle sensor in the embodiment of the present invention.
FIG. 7 is a table for an in-vehicle sensor to calculate a distance to an event in the embodiment of the present invention.
FIG. 8 is a diagram illustrating an example in which the HMI unit presents driving assistance information to a driver in the embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Automobile, 31 ... Control part, 32 ... Wireless communication part, 33 ... HMI part, 341,342 ... In-vehicle sensor, 41,42 ... Access point, 5 ... Roadside sensor, 6 ... Network.

Claims (3)

  1. Distance sensor to the vehicle in front, provided to the traveling vehicle by radio or optical beacon etc., such as accident information, falling object information, road construction information and traffic jam information etc. Support information from various sensors, such as a sensor that detects lane departure and lane departure, is presented to the driver. When presenting a plurality of pieces of driving support information, when the driver does not take an avoidance action, the time until the avoidance target event of the driving support information occurs is predicted. A driving support information presentation method for selecting driving support information on a short event and preferentially presenting it to a driver.
  2. A driving support information presentation method for determining the priority of presentation according to the type of driving support information, and presenting the driving support information to a driver by the priority determination method according to claim 1 when the driving support information has the same priority.
  3. 3. The driving support information presentation method according to claim 2, wherein a predetermined predicted time is assigned to an event in which a predicted time until an event occurs when the driver does not take an avoidance action cannot be obtained.
JP2003035911A 2003-02-14 2003-02-14 Travel support information presentation method Pending JP2004246631A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2003035911A JP2004246631A (en) 2003-02-14 2003-02-14 Travel support information presentation method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2003035911A JP2004246631A (en) 2003-02-14 2003-02-14 Travel support information presentation method

Publications (1)

Publication Number Publication Date
JP2004246631A true JP2004246631A (en) 2004-09-02

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JP2003035911A Pending JP2004246631A (en) 2003-02-14 2003-02-14 Travel support information presentation method

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JP (1) JP2004246631A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009151554A (en) * 2007-12-20 2009-07-09 Mitsubishi Electric Corp In-vehicle device for providing safety driving support information
JP2010039842A (en) * 2008-08-06 2010-02-18 Toyota Motor Corp Driving support adjustment device
JP2010108344A (en) * 2008-10-31 2010-05-13 Honda Motor Co Ltd Driving support device
JP2012103969A (en) * 2010-11-11 2012-05-31 Toyota Motor Corp Driving support device
JP2013221837A (en) * 2012-04-16 2013-10-28 Alpine Electronics Inc Sound reproduction schedule device and method
US8742906B2 (en) 2009-04-15 2014-06-03 Toyota Jidosha Kabushiki Kaisha Alarm output control apparatus
CN103632556B (en) * 2008-10-08 2015-12-09 丰田自动车株式会社 Drive assistance device and method
US9315191B2 (en) 2012-04-12 2016-04-19 Toyota Jidosha Kabushiki Kaisha Driving assistance device
JP2016100028A (en) * 2016-01-19 2016-05-30 パナソニックIpマネジメント株式会社 Terminal device

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009151554A (en) * 2007-12-20 2009-07-09 Mitsubishi Electric Corp In-vehicle device for providing safety driving support information
JP4601662B2 (en) * 2007-12-20 2010-12-22 三菱電機株式会社 In-vehicle device and information processing device providing safe driving support information
JP2010039842A (en) * 2008-08-06 2010-02-18 Toyota Motor Corp Driving support adjustment device
CN103632556B (en) * 2008-10-08 2015-12-09 丰田自动车株式会社 Drive assistance device and method
JP2010108344A (en) * 2008-10-31 2010-05-13 Honda Motor Co Ltd Driving support device
US8742906B2 (en) 2009-04-15 2014-06-03 Toyota Jidosha Kabushiki Kaisha Alarm output control apparatus
JP2012103969A (en) * 2010-11-11 2012-05-31 Toyota Motor Corp Driving support device
US9315191B2 (en) 2012-04-12 2016-04-19 Toyota Jidosha Kabushiki Kaisha Driving assistance device
JP2013221837A (en) * 2012-04-16 2013-10-28 Alpine Electronics Inc Sound reproduction schedule device and method
JP2016100028A (en) * 2016-01-19 2016-05-30 パナソニックIpマネジメント株式会社 Terminal device

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