JP2007292607A - Drive assist apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a drive assist apparatus capable of improving users' understanding of warning information and attributing to safety drive. <P>SOLUTION: On the basis of both caution area data, at least on both a caution area in which a condition requiring caution has occurred and the type of caution and vehicle location data indicating the location of a vehicle, that the vehicle has come close to or entered the caution area is detected, and a notification means 5 notifies alarm information in the drive assist apparatus. The drive assist apparatus is provided with a control means 4 for sequentially notifying first alarm information, at least containing information on the caution area or information on environmental changes and second alarm information, at least containing information for drawing caution, according to the type of the caution as the alarm information. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a driving support device that issues a warning when a vehicle approaches or enters a caution area that calls attention, and urges the user of the vehicle to support safe driving.

Even if it does not lead to an accident with respect to road traffic, it may be dangerous, such as “sneaking” or “haggling”. This is called “near-miss” and is an area that calls for attention (hereinafter, attention). A driving support device that informs the vehicle driver that he / she has entered the attention area has been attracting attention. This driving support device is disclosed in Patent Document 1.
JP 2003-123185 A

  The driving support device includes a receiving unit that receives danger information including electronic information indicating a place where a dangerous state occurs and a type of the danger, a recording unit that records the received dangerous information, and a request from a communication unit. According to the transmission means for delivering the danger information recorded in the recording means, and based on the received danger information, the number of occurrences of the dangerous state is totaled to identify the dangerous area, and the identified A server having at least a control unit comprising a microcomputer for recording information relating to a dangerous area in the recording unit, transmitting the danger information in response to a request from a slave station terminal mounted on a vehicle, and the slave station terminal Is a system for visually or audibly confirming the danger information by a notification means provided in the case where the vehicle enters or approaches a caution (danger) area. In is intended to call attention to the safe operation of the vehicle of the user.

  Here, the “dangerous state” is caused by various causes such as overspeed, occurrence of traffic congestion, poor visibility due to weather or time, or right or left turn at an intersection. When a vehicle enters the caution area, a warning sound (auditory information) is emitted by a buzzer or a warning display (for example, “emergency information”) regardless of whether or not the cause of the danger information has actually occurred. Visual information) such as “curve, attention” is performed. However, there is a problem that if the user wants to notify all the information that should be notified to the user as the warning information by a single notification operation, the user cannot instantly understand all of the contents, and driving assistance As a device, there is still room for improvement.

  The present invention has been made in view of this problem, and an object of the present invention is to provide a driving support device capable of improving a user's understanding of warning information and contributing to safe driving.

  In order to solve the above-described problem, the driving support device according to the present invention is based on the attention area in which a state requiring attention and the attention area data having at least the kind of the attention and the vehicle position data indicating the position of the vehicle. A driving support device that detects that the vehicle has approached or entered the caution area and notifies warning information by a notification means, and includes at least information on the caution area or information on environmental changes as the warning information. It is characterized by comprising control means for sequentially informing the first warning information and the second warning information including at least information for calling attention according to the type of attention.

  In addition, the information regarding the attention area includes at least one of a place name, a road shape, or a factor causing a state requiring attention.

  Further, the control means relates to at least a change in the environment as the first warning information when it is newly determined that the caution area data should be notified of the warning information based on the change in the environment. Information is caused to be notified to the notification means.

  The environment change information may include at least one of weather, time of day, traffic conditions, and road surface conditions.

  The driving support apparatus according to claim 1, wherein the control unit causes the notification unit to notify the information related to the change in the environment only by voice.

  The present invention relates to a driving support device that issues warning information when a vehicle approaches or enters a caution area to call attention, and urges the user of the vehicle to support safe driving, and the user's understanding of the warning information It is possible to improve the degree and contribute to safe driving.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

  The overall configuration of the driving support apparatus will be described with reference to FIG. The driving support apparatus A mainly includes a communication unit 1, a GPS receiver (vehicle position detection unit) 2, an operation unit 3, a control unit 4, and a notification unit 5. On the other hand, the server 6 is provided as a system for delivering attention area data, which will be described in detail later, to the driving support device A. This server 6 is accessed by residents and vehicle drivers (users) from a personal computer (personal computer) 7, a mobile phone, a car navigation system with a communication function, etc., and attention area data consisting of near-miss information is collected, and Bluetooth is collected. The caution area data can be transmitted to the driving support device A via the mobile phone 8 having a wireless communication function such as the above.

  The caution area data includes a caution area where a state requiring attention, a type of the caution, and a factor causing the state requiring attention, and is recorded in a recording medium such as a hard disk in the server 6. It is. The caution area has information such as a place name (intersection name, etc.) and a road shape (intersection, sharp curve, etc.) corresponding to the caution area in order to notify first warning information described later. In the caution area data, a warning degree composed of a plurality of ranks is set by comprehensively judging the traffic volume, the frequency of dangerous driving, the frequency of sudden braking, and the like. In the present embodiment, the warning level is classified into ranks 1 to 5, rank 1 is the lowest warning level, and rank 5 is the highest warning level. FIG. 2 shows an example of the attention area data. The first caution area data 10 includes a caution area 10a, a road shape 10b, a caution type 10c, a factor 10d, and a warning degree 10e. In the first attention area data 10, the attention area 10a is composed of latitude and longitude data. Further, “cross intersection” is set as the road shape 10b. Further, “oncoming vehicle, pedestrian collision” is set as the attention type 10c. Further, “when turning right at the intersection” is set as the factor 10d. Further, “2” is set as the warning degree 10e.

  The communication means 1 is capable of wireless communication with the mobile phone 8 and downloads the caution area data from the server 6 to the control means 4 via the mobile phone 8.

  The GPS receiving unit 2 includes a GPS receiving antenna, and supplies the position information of the vehicle from the artificial satellite received by the receiving antenna to the control means 4.

  The operation means 3 is for selecting and determining the notification contents and the like in the notification means 5 and is composed of a remote operation unit such as an operation switch or a wireless remote controller.

  The control means 4 is mainly composed of a microcomputer having a CPU, a ROM, a RAM, an I / O (input / output) interface, and the like. The control means 4 performs a matching process on the vehicle position data received by the GPS receiver 2 and the caution area data downloaded via the mobile phone 8, and alert information is sent by the notification means 5 according to the result of the matching process. It is to inform. Further, the control means 4 obtains environmental information from wireless communication with various sensors such as an outside air temperature sensor in the vehicle, on-vehicle equipment (blinker, wiper, clock, air conditioner, audio, etc.) or an external information distribution system. . The environmental information is information serving as a criterion for determining whether or not the caution area data should be used to notify the warning information, and specifically includes weather, time, traffic conditions, or road surface conditions. The control unit 4 includes a recording unit 4a such as a flash memory for storing the downloaded caution area data, and can process and store the caution area data.

  The notifying means 5 is composed of, for example, a matrix type liquid crystal display panel or an organic EL panel, and a display unit 5a that is visual information confirmation means for displaying warning information, and a speaker 5b that is auditory information confirmation means for notifying warning information by voice. And the display unit 5a and the speaker 5b operate according to an instruction signal from the control unit 4.

  The display unit 5a includes a first display area 5a1 for displaying various vehicle information such as the accumulated distance of the vehicle, the remaining fuel, or the outside temperature, and a second display for displaying warning information based on the normal operation state and the caution area data. Display area 5a2. FIG. 3 shows a display form of the display unit 5a during normal driving of the vehicle. The various vehicle information displayed in the first display area 5a1 is input to the control means 4 from various units such as an engine control unit (ECU) and an air conditioner via the multiple communication path. Various vehicle information can be displayed by executing a predetermined display process.

  Next, the control method in the alerting | reporting process of the warning information of the control means 4 is demonstrated using FIG.

  The control means 4 inputs caution area data from the server 6 through the communication means 1 (step S1). Further, vehicle position data is input via the GPS receiver 2 (step S2). In addition, environmental information is input from inside or outside the vehicle (step S3). Then, the control means 4 determines whether or not the vehicle has entered the caution area based on the input caution area data and the vehicle position data (step S4), and further, based on the environmental information, It is determined whether or not the caution area data should notify the warning information (step S5). In the determination in step S4, a determination result is obtained by matching processing between the attention area data and the vehicle position data. The determination in step S4 may determine whether or not the vehicle has approached the caution area. In the determination in step S5, the warning level of the caution area data that should be notified of the warning information according to the content of the environmental information is preset, and the warning level of the input caution area data is the content of the environmental information. It is determined by whether or not the warning level is set corresponding to. The determination in step S5 is based on whether or not the content of the environment information corresponds to the content set in advance according to the type of the factor that causes a state of caution. It may be determined whether or not the information should be notified. Specifically, for example, there is a case where the input of turning on the wiper (the wiper is operated) is set as the content of the environmental information for the factor “in the rain”.

  When it is determined in step S4 that the vehicle has entered the caution area and it is determined in step S5 that the caution area data should notify the warning information, the control means 4 first determines this. The notification means 5 performs a process of visually and audibly informing the first warning information related to the attention area included in the attention area data that has been performed (step S6).

  As a specific example, the control means 4 determines that the vehicle has entered the caution area 10a of the first caution area data 10 described above in step S4, and determines that the warning information should be notified in step S5. If so, an image and characters suggesting that there is an intersection at the travel destination are displayed in the second display area 5a2, and a process of issuing a warning “This is an intersection” is performed by the speaker 5b (FIG. 5). reference).

  Further, in particular, when the control unit 4 newly determines that the caution area data should be notified of the warning information in step S5 by a change in the environment detected by the environment information. In step S6, a process for notifying information relating to the environmental change as the first warning information by the notification means 5 is executed. In the present embodiment, the control unit 4 should notify the warning information after the warning level for determining that the warning information should be notified based on the environment information is changed. If it is determined, the determination result is determined to be newly obtained due to the environmental change.

  As a specific example, the control unit 4 determines in step S4 that the vehicle has entered the caution area 10a of the first caution area data 10 described above, and detects that the wiper is turned on as the environmental information in step S5. In the case where the warning level of the warning information to be notified is changed due to the change of the weather when it rains as the environmental change, and it is determined that the first attention area data 10 should newly notify the warning information Displays images and characters suggesting that there is an intersection at the travel destination as information on the attention area in the second display area 5a2, and "rain is raining" as information on the environmental change by the speaker 5b. Execute the process of issuing an alarm “Please pay attention to” (see FIG. 6). That is, the information regarding the environmental change is notified only by voice.

  Next, after the notification processing of the first warning information, the control means 4 visually and secondly displays the second warning information including at least information for prompting attention according to the type of attention possessed by the attention area data. An audible notification process is executed (step S7).

  As a specific example, the control means 4 displays an image and characters that call attention to the right turn in the second display area 5a2, and issues a warning “Please beware of oncoming vehicles and pedestrians” by the speaker 5b. Execute (see FIG. 7).

  The driving support apparatus A is a driving support apparatus that detects that the vehicle has approached or entered the caution area based on the caution area data and the vehicle position data, and notifies the warning information by the notification means 5. The warning information includes, as the warning information, the first warning information including at least information regarding the attention area or the environment change, and the second warning information including at least information for prompting attention according to the type of attention. The control means 4 which notifies sequentially is provided. The information regarding the attention area includes at least one of a place name, a road shape, or a factor that causes a state requiring attention. In addition, the information related to the environmental change includes at least one of weather, time, traffic conditions, and road surface conditions. In addition, when it is newly determined that the caution area data should be notified of the warning information based on the change in the environment, the control unit 4 includes at least information on the change in the environment. The warning means 5 is notified of warning information.

  Due to such feature points, the driving support device A can understand each information sequentially by changing the timing of notification between the information regarding the change in the attention area or the environment and the information for prompting attention. It is possible to improve the level of understanding of the user and contribute to safe driving.

  In addition, by notifying the information regarding the attention area before notifying the information for prompting attention, the user can grasp the situation of the attention area in advance, and for the information for prompting attention to be notified later. The degree of understanding can be improved. For example, even if information that calls attention at the time of a right turn later is notified by notifying that the attention area is an intersection in advance, a user who knows that there is an intersection in advance will call attention Can be dealt with instantly.

  In addition, by notifying the information related to the change in the environment before notifying the information that prompts attention, the user can instantly understand the change in the situation related to the notification of the warning information. For example, by notifying that the weather has changed to rainy weather, the user can easily understand that the warning information is generated more frequently than when the weather is clear.

It is a figure showing the whole driving support device composition in an embodiment of the present invention. It is a figure explaining an example of attention area data in the same as the above. It is a figure explaining the alerting | reporting means of a driving assistance device same as the above. It is a figure for demonstrating the alerting | reporting process of a driving assistance device same as the above. It is a figure explaining the alerting | reporting means at the time of the alerting | reporting process of a driving assistance device same as the above. It is a figure explaining the alerting | reporting means at the time of the alerting | reporting process of a driving assistance device same as the above. It is a figure explaining the alerting | reporting means at the time of the alerting | reporting process of a driving assistance device same as the above.

Explanation of symbols

A driving support device 1 communication means 2 GPS receiving section 3 operation means 4 control means 4a recording means 5 notification means 5a display section 5b speaker 6 server 7 personal computer 8 mobile phone 10 first attention area data 10a attention area 10b road shape 10c attention Type 10d Factor 10e Warning level

Claims (5)

Detect and notify that the vehicle has approached or entered the caution area based on the caution area data having at least the caution area where the state requiring attention and the type of caution and the vehicle position data indicating the position of the vehicle. A driving support device for notifying warning information by means,
Control that sequentially notifies first warning information including at least information regarding the attention area or information regarding environmental change as the warning information and second warning information including at least information for prompting attention according to the type of attention. A driving support device comprising means. The driving support device according to claim 1, wherein the information related to the attention area includes at least one of a place name, a road shape, or a factor that causes a state requiring attention. The control means, when it is newly determined that the warning area data should be notified of the warning information based on the environmental change, at least information on the environmental change as the first warning information. The driving support apparatus according to claim 1, wherein the notification means is notified. The driving support device according to claim 1, wherein the information related to the environmental change includes at least one of weather, time, traffic conditions, and road surface conditions. The driving support apparatus according to claim 1, wherein the control unit causes the notification unit to notify the information related to the change in the environment only by voice.

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