JP4640636B2 - Vehicle driving support device - Google Patents

Description

  The present invention relates to a vehicular driving support apparatus that detects that an intrusion or approach has been made to an attention area indicating a position where attention should be paid more than usual when a vehicle is traveling, and notifies warning information to a user of the vehicle.

Even if it does not lead to an accident with respect to road traffic, it may be dangerous, such as “missing” or “stunning”, and this is called “missing hat”. A driving support device that draws attention to the vehicle user when the vehicle has entered or approaches 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 storage unit that stores the received dangerous information, and a request from the communication unit. According to the transmission means for distributing the danger information stored in the storage 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 control means comprising a microcomputer for storing information relating to a dangerous area in the storage means, and a notification means for visually and auditorily checking the danger information, including a place where the host vehicle is in a dangerous state When the user enters or approaches an area, the notification means is operated to alert the user.

  Such a driving support device displays an alarm (for example, visual information such as “abrupt curve, attention”) by a display when a vehicle enters or approaches the caution area. However, although the driving assistance device issues an alarm to alert the vehicle user when the vehicle enters or approaches the caution area, it knows where the caution area is or where it is the caution area. However, there is room for improvement as a driving support device because the driving operation must be performed while constantly monitoring the warning display, and there is a possibility that the vehicle user may be burdened.

  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 contributing to safe driving by displaying that a vehicle has approached the boundary of a caution area. .

According to the first aspect of the present invention, the vehicular driving support apparatus according to the first aspect of the present invention includes caution area data that indicates a position to be cautioned more than usual when the vehicle is traveling, and own vehicle position detection that detects the position of the vehicle A vehicle driving support device for detecting that the vehicle has entered or approached a caution area based on the vehicle position data from the means and informing the user of the vehicle of warning information, wherein the warning information Display means provided with a warning display section using a road-like display and a text display section that expresses cautions in characters, and when the vehicle travels toward the caution area, the vehicle The range of the caution area is set to become wider as the traveling speed of the vehicle increases, and if it is determined that the vehicle approaches the boundary of the caution area, the warning area is within the display area. The caution area is indicated by a first display color, the normal area other than the caution area is indicated by a second display color different from the first display color, and as the boundary of the caution area is approached, By displaying the boundary line of the first and second display colors so as to move downward , the display means is controlled to display that the boundary of the attention area exists nearby. And a control means.

  Further, as described in claim 2, in the vehicle driving support device according to claim 1, the warning display unit of the display means has a predetermined value for displaying that the vehicle has entered or approached the caution area. When the control means determines that the vehicle has approached the boundary of the caution area, the control means changes the display area indicating the caution area in a stepwise manner.

  In addition, as described in claim 3, in the vehicle driving support device according to claim 1 or 2, the control unit is configured to move the vehicle toward a boundary side of the caution area. The display of the alarm display unit is changed.

Further, as described in claim 4, in the vehicle driving support device according to claim 1, when the control unit determines that the vehicle approaches the caution area from the normal area, The display means is controlled to display an upper part in the first display color and a lower part in the second display color.

Further, as described in claim 4, in the vehicle driving support device according to claim 1, when the control unit determines that the vehicle has approached the normal area from the caution area, The display means is controlled to display an upper part in the second display color and a lower part in the first display color.

  The present invention relates to a driving support device for a vehicle that detects that the vehicle has entered or approached a caution area that indicates a position that should be watched more than usual, and notifies the user of the vehicle of alarm information. By displaying that has approached the boundary of the attention area, it is possible to contribute to safe driving.

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

  The overall configuration of the vehicle driving support apparatus will be described with reference to FIG. The vehicle driving support apparatus A mainly includes a communication unit 1, a GPS receiving unit (own vehicle position detection unit) 2, an operation unit 3, a vehicle speed detection unit 4, a control unit 5, and a display unit 6. ing. On the other hand, a server B is provided as a system for delivering attention area data, which will be described in detail later, to the vehicle driving support apparatus A.

  This server B is used by a pedestrian or driver (vehicle user) walking on the runway from a mobile phone C, a personal computer (PC) D, a car navigation system with a communication function, or a vehicle terminal equipped with a probe car system. It is accessed, caution area data consisting of near-miss information is collected, and the caution area data can be transmitted to the vehicle driving support apparatus A via the mobile phone C. For example, an area corresponding to the type of caution (for example, a radius of 100 meters) from a danger point such as an accident in the past, a sudden braking operation, or a poor view is registered as a dangerous area. Information is collected and registered.

The attention area data relates to an area (map data or latitude / longitude data) where a state requiring attention is generated and a type of attention stored in a state associated with the area. It is stored in a storage medium such as a hard disk. The caution area data is used, for example, when driving vehicles such as intersections where collision accidents occur frequently, intersections where frequent accidents occur when turning left, places where there are sharp curves, areas where road surfaces may freeze, etc. who shows a need to give warning (driver) area.

As the communication means 1, for example, wireless communication means using infrared rays or high-frequency radio waves (communication standards such as IrDA and BLUETOOTH) can be applied, and the caution area data is downloaded from the server B to the control means 5 via the mobile phone C. is there. The communication unit 1 may be any device that can exchange information between the control unit 5 and the mobile phone C, and may be replaced with a wired communication unit such as a cable connection, for example.

  The GPS receiver 2 is a receiver that receives a GPS signal radiated from an artificial satellite, and detects the current position and traveling direction of the vehicle based on the received GPS signal. The GPS receiving unit 2 includes a GPS receiving antenna and an amplifier circuit, and controls a signal obtained by amplifying a transmission radio wave as position information from an artificial satellite received by the receiving antenna as a high frequency signal as own vehicle position data. Output to means 5.

  The operation means 3 is for selecting and determining the display contents of the display means 6, and is composed of an operation section having operation switches and the like, and a remote operation section such as a wireless remote controller.

  The vehicle speed detection means 4 is attached to, for example, a vehicle transmission, generates a predetermined number of pulse signals per one rotation of the speedometer pinion, and outputs the pulse signal to the control means 5. The control means 5 calculates the travel speed of the vehicle by detecting the pulse number or pulse period per unit time output from the vehicle speed detection means 4, and counts the pulse number to determine the travel distance of the vehicle. calculate.

  For example, a microcomputer can be applied to the control means 5, and a CPU and a CPU are provided as means for performing various arithmetic processes based on information obtained via the communication means 1, the GPS receiver 2, the operation means 3, and the vehicle speed detection means 4. A RAM that is a readable and rewritable working memory that stores the result of the arithmetic processing and a ROM that is a read-only program memory that stores the control program. The control means 5 compares the position data calculated by the information of the GPS receiver 2 with the attention area data downloaded via the mobile phone C, and the display means 6 performs a comparison process according to the comparison result. The display is changed. The control means 5 has a storage medium such as a flash memory for storing the downloaded dangerous area data, and can process and store the dangerous area data.

  The display means 6 can be, for example, a display composed of a matrix type liquid crystal display panel or an organic EL panel capable of multicolor display, and performs display based on a control signal from the control means 5. Further, the display means 6 is provided by the operation means 3 such as various vehicle information such as the accumulated distance of the vehicle, the remaining fuel, or the outside air temperature, and alarm information for alerting the vehicle user according to the reception status of the attention area data. The display contents can be selected and displayed by operation. The display means 6 includes a liquid crystal display element in which a polarizing member is attached to the front and rear surfaces of a liquid crystal cell in which liquid crystal is sealed in a pair of translucent substrates, and a light source that illuminates the liquid crystal display element. A so-called head-up display in which a display image emitted from the liquid crystal display element illuminated by transmission is reflected by a concave mirror and projected onto a display unit such as a windshield of a vehicle or a semi-transmissive plate (reflecting plate) can also be applied. Can be displayed with high visibility to the user.

  The vehicle driving support device A is configured by the above-described units. Next, display processing in the control means 5 will be described in detail with reference to FIGS.

  FIG. 2 is a display example by the display means 6. As shown in FIG. 2 (a), the display means 6 includes a communication status display section 6a that indicates whether or not the mobile phone C is within a communication area in a normal area far from the caution area, and a vehicle traveling speed display section. 6b, and an alarm display unit 6c that displays whether or not the user has entered or approached the attention area as alarm information. The alarm display unit 6c is expressed in a display color (second display color) indicating a preset normal area, and in this case, a display area that images a road is displayed in blue.

  When performing such display, the control means 6 is based on the attention area data obtained via the communication means 1 and the traveling speed data from the vehicle speed detection means 4, for example, as shown in FIG. From the danger area WA registered in the server B, a caution area CA is set in consideration of a preparation time for a predetermined time (for example, 5 seconds) according to the traveling speed of the vehicle V. That is, a range in which the vehicle V may reach the danger area WA after the predetermined time at the same traveling speed is determined as the caution area CA. Since the control means 5 sets the caution area CA in consideration of the predetermined time, the area to be set differs according to the traveling speed of the vehicle V. The higher the traveling speed of the vehicle V, the wider the caution area CA is. Is set.

  Further, the control means 5 determines whether or not there is a caution area CA on the front side and in the vicinity of the vehicle V based on the own vehicle position data from the GPS device 2. When the control means 4 determines that the vehicle V is not in the vicinity of the caution area CA and the caution area CA is not included in the display area based on the determination result, the front side of the vehicle V is a normal area for a while. As shown in FIG. 2A, the alarm display section 6c of the display means 5 is displayed in blue.

  When the control means 5 determines that the boundary of the caution area CA is approaching the vicinity of the front side of the vehicle V while traveling in the normal area, as shown in FIG. In the display area 6c, the upper part is displayed in a display color (first display color) representing a preset attention area CA, and the lower part is a normal area currently being traveled. Is displayed in blue. In this case, yellow is set and displayed as a display color representing the caution area CA serving as alarm information, and a yellow and blue boundary line is displayed as a warning as the vehicle V travels to the boundary side of the caution area CA. In the display area of the part 6c, the yellow display area gradually increases and the blue display area decreases in a stepwise manner. Therefore, the control means 5 displays the vehicle V so that the portion displayed in yellow approaches as the vehicle V travels and the distance to the boundary of the attention area CA approaches, so that the vehicle V approaches the attention area CA. It is possible to make the user aware that

  When the control means 5 determines that the boundary of the caution area CA is approaching the vicinity of the front side of the vehicle V while traveling in the caution area CA, as shown in FIG. In the display area of the display unit 6c, the upper part is displayed in blue representing the normal area, and the lower part is displayed in yellow to indicate that the area is the caution area CA currently traveling. As the vehicle V travels to the boundary side of the caution area CA, the blue and yellow boundary lines move downward in the display area of the alarm display unit 6c, and the blue display area gradually increases. Thus, the yellow display area is reduced. Therefore, the control means 5 displays the portion displayed in blue so that the vehicle V approaches the normal area as the vehicle V travels and the distance to the boundary of the attention area CA approaches. It is possible to make the user aware that

  Note that the control means 5 determines whether or not the user of the vehicle V has performed a dangerous driving operation according to the type of attention, such as a high traveling speed of the vehicle V, while traveling in the danger area WA. In the case of a correct driving operation, the display area of the alarm display unit 6c can be displayed in a display color for caution (a color different from the first and second display colors). In this case, as shown in FIG. 4, the display area is blinked in red, and the text display unit 6d expressing the notes is displayed, thereby prompting the user to be aware of the driving operation. .

  If the control means 5 determines that the boundary of the caution area CA is approaching the vicinity of the front side of the vehicle V, the control means 5 includes the caution area data, the own vehicle position data, and the traveling speed data of the vehicle V. Based on this, the arrival time from the vehicle position of the vehicle V to the boundary of the attention area CA can be estimated, and the display of the alarm display unit 6c can be changed step by step according to the arrival time.

  Such a vehicle driving support device is based on caution area data indicating a position to be cautioned more than usual when driving the vehicle V, and own vehicle position data from the GPS receiver 2 that detects the position of the vehicle V. A vehicle driving support device that detects that the vehicle V has entered or approached the attention area CA and notifies the user of the vehicle V of alarm information, and includes an alarm display unit 6c for displaying the alarm information. Display means 6 provided, and control means 5 for controlling the display means 6 so as to display that the boundary of the caution area CA is present when the vehicle V is determined to have approached the boundary of the caution area CA. , Provided.

  Further, the alarm display unit 6c of the display means 6 includes a predetermined display area for displaying that the vehicle has entered or approached the caution area CA, and the control means 5 determines that the vehicle V has approached the boundary of the caution area CA. Then, the display area indicating the attention area CA is changed stepwise.

  Therefore, the user of the vehicle V can change the display color so that the user can recognize that the attention area is approaching, and a preparation period for performing a driving operation for avoiding danger can be obtained. It becomes possible to give enough to the user of the vehicle. Moreover, since the user can recognize in advance the boundary portion (change portion) of the attention area CA by changing the display step by step, the user does not always monitor the display of the alarm display unit 6c. Thus, the vehicle can be operated while recognizing that it enters and exits the attention area CA in advance, and the vehicle driving support device contributes to safe driving while reducing the load on the user.

  Moreover, the control means 5 can make a user pay attention to a display by changing the display of the alarm display part 6c in steps as the vehicle V travels to the boundary side of the caution area CA. Therefore, it becomes a vehicle driving support device that contributes to safe driving with awareness of the presence of the attention area CA.

  Further, when the control means 5 determines that the vehicle V has approached the boundary of the caution area CA, the control means 5 indicates the caution area CA in yellow (first display color) and a normal area other than the caution area CA in a color different from yellow. As shown in blue (second display color), the display means 6 is controlled. In addition, since the display color is changed in the order of “blue”, “yellow”, and “red” depending on the degree of attention, the user can simply check the display color and the vehicle V can move to the boundary of the attention area CA. It is possible to easily determine whether or not the vehicle is approaching.

  In the embodiment of the present invention, the vehicle driving support device including the above-described components and processing by the control means 5 has been described as an example. However, the present invention is not limited to this and the configuration thereof is not limited thereto. The processing method is not limited as long as the same effect can be obtained. For example, the alarm display unit 6c that expresses the degree of danger in the order of "blue", "yellow", and "red" and alerts the user is taken as an example. As described above, other display colors may be set, or the alarm display unit may be configured in another shape.

  Further, the control unit 5 calculates the caution area CA based on the danger area WA of the caution area data obtained via the communication unit 1, but sets the danger area WA as the caution area CA as it is. There may be.

  In addition, when the vehicle V enters the danger area WA, the control unit 5 displays a display indicating the type of caution such as “Caution for intersection collision!” And “Caution for inclusion!” On the text display unit 6d of the display unit 6. It can also be done.

The figure which shows the whole structure of the driving assistance device for vehicles in embodiment of this invention. The figure which shows the example of a display of the display means of the driving assistance apparatus for vehicles same as the above. The figure which shows the attention area of the driving assistance device for vehicles same as the above. The figure which shows the example of a display of the display means of the driving assistance apparatus for vehicles same as the above.

Explanation of symbols

1 Communication means 2 GPS receiver (own vehicle position detection means)
4 vehicle speed detection means 5 control means 6 display means 6c alarm display part A vehicle driving support device B server C mobile phone D personal computer CA attention area WA danger area V vehicle

Claims (5)

The vehicle enters the caution area based on caution area data indicating a position to be cautioned for when driving the vehicle and vehicle position data from the vehicle position detection means for detecting the position of the vehicle. Alternatively, a vehicle driving support device that detects that the vehicle is approaching and notifies the user of the vehicle of alarm information,
A display means comprising a warning display unit using a display imaged of a road to display the warning information and a text display unit expressing the precautions in characters;
When the vehicle travels toward the caution area, the higher the travel speed of the vehicle, the wider the range of the caution area,
When it is determined that the vehicle has approached the boundary of the caution area, the caution area is indicated by a first display color and a normal area other than the caution area is displayed in the display area of the alarm display unit. By displaying the second display color different from the color, and displaying the boundary line of the first and second display colors so as to move downward as approaching the boundary of the attention area, A vehicle driving support apparatus comprising: a control unit configured to control the display unit so as to display that the boundary of the caution area is nearby.   The warning display part of the display means comprises a predetermined display area for displaying that the caution area has been entered or approached, and the control means determines that the vehicle has approached the boundary of the caution area. The vehicle driving support apparatus according to claim 1, wherein an area of a display indicating the attention area is changed stepwise.   3. The vehicle driving support according to claim 1, wherein the control unit changes the display of the warning display unit in accordance with the vehicle traveling to the boundary side of the caution area. apparatus.   When the control means determines that the vehicle has approached the caution area from the normal area, the control means displays the upper part in the alarm display part in the first display color and the lower part in the second display color. The vehicle driving support apparatus according to claim 1, wherein the display means is controlled so as to display the information.   When the control means determines that the vehicle has approached the normal area from the caution area, the control means displays the upper part in the alarm display part in the second display color and the lower part in the first display color. The vehicle driving support apparatus according to claim 1, wherein the display means is controlled so as to display the information.

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