JPH09259386A - Congestion information display device - Google Patents

Abstract

(57) [Summary] [Problem] To display traffic congestion information in an easy-to-understand manner. SOLUTION: When a vehicle travels in a traffic jam section, traffic congestion information determining means 104 for determining whether the traffic information is traffic congestion information regarding a lane in a traveling direction of the vehicle or traffic information regarding a lane in the opposite direction. And an importance determining means 1 for determining the importance of traffic congestion information based on the determination result
05 and the traffic jam information display restricting means 106 for restricting the display of traffic jam information that is not important to the passenger, it is possible to display only the traffic jam information regarding the lane in the traveling direction of the own vehicle, and the visibility is improved. .

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a traffic jam information display device for displaying traffic jam information sent from the outside of the own vehicle on a road map on a display screen provided inside the own vehicle.

[0002]

2. Description of the Related Art Conventionally, a vehicle information system has been developed in which information is transmitted by a beacon or FM multiplex broadcasting installed at a base station or on the side of a road, and the receiving device of the vehicle receives and displays the information. . For example, on a metropolitan expressway in central Tokyo, a system has been developed in which base stations transmit traffic congestion information, regulation information, accident information, etc. of the entire metropolitan expressway, and display this on a display device mounted on a vehicle. A display such as a traffic jam information display board, which is currently installed at a dozen or more places on the Metropolitan Expressway, can be displayed on the display device in the vehicle. According to this, it is possible to confirm the information at a desired time of the passenger without having to understand the contents sufficiently after passing through the conventional display plates installed above or on the side of the road.

As such a device for displaying information from the outside in the vehicle, there is, for example, a device described in Japanese Patent Laid-Open No. 4-38599. As an example of displaying the congestion information, this device displays the congestion information on the map screen in a color different from that of the other roads so that the passengers can easily be notified of the congestion information.

However, since the device disclosed in Japanese Patent Laid-Open No. 4-38599 displays information on all the roads that are congested, the passengers also display the traffic congestion information that is not necessary, and the passengers Although it is possible to obtain a wealth of information, there is a problem that necessary information becomes difficult to see. As an apparatus for solving this problem, for example, there is an apparatus described in Japanese Patent Application Laid-Open No. 4-40596.

In Japanese Laid-Open Patent Publication No. 4-40596, the distance from the current position of the vehicle to the destination is calculated, and the less important information is limited and displayed according to the distance.
A device is shown in which only road traffic information necessary for passengers is displayed and visibility is improved.

Further, as a device which improves the visibility of road traffic information similarly to the device described in JP-A-4-40596, there is an apparatus described in JP-A-5-46087. According to the current traveling condition of the vehicle including the traveling direction of the vehicle, the traveling speed, the current position, and the distance to the destination, this device has an optimum range for the passenger as shown in FIGS. 6 and 7. Only the road traffic information of is displayed.

[0007]

However, according to the above-mentioned conventional technique, the visibility can be improved by displaying only the road traffic information in the optimum range which is highly important to the passengers. Since the traffic information in the opposite direction, which is unnecessary for the passenger, is displayed together with the traveling direction of the own vehicle, there is a problem in that it is not possible to notify the passenger of only the necessary information on the display screen.

The present invention solves the above problem by limiting the display of traffic jam information regarding the lane in the opposite direction to the traveling direction of the vehicle when the vehicle travels in a traffic jam section. An object of the present invention is to provide an excellent traffic jam information display device capable of notifying passengers of only traffic jam information regarding the traveling direction of a vehicle of high importance.

[0009]

In order to achieve the above object, the traffic jam information display device of the present invention displays traffic jam information about the lane in the traveling direction of the vehicle when the vehicle travels in a traffic jam section. It is possible to display only the traffic jam information in the traveling direction of the own vehicle by determining whether there is traffic jam information regarding the lane in the opposite direction, and if necessary, it is possible to display the traffic jam information in the own vehicle. When traveling in a section, it is possible to display only the traffic jam information that is important to the passengers, and it is possible to improve the visibility of the traffic jam information display.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION The invention according to claim 1 of the present invention is traffic congestion information regarding a lane in the traveling direction of the vehicle when the vehicle travels in a traffic jam section, or with respect to the traveling direction. Congestion information determination means for determining whether the traffic information is related to the lane in the opposite direction, importance determination means for determining whether the determined congestion information is important information for a passenger, and boarding information It is a traffic jam information display device having a traffic jam information display limiting means for restricting the display so that only the traffic jam information important to the passenger is displayed, and the traffic jam information is displayed by displaying only the traffic jam information important to the passenger. It has an effect that the visibility of the display can be improved.

In the invention according to claim 2, the importance determining means determines that the traffic jam information regarding the lane in the traveling direction of the host vehicle is important traffic congestion information, and the traveling direction in which the host vehicle travels. The traffic congestion information display device according to claim 1, wherein display of traffic congestion information regarding a lane in the opposite direction is restricted, and when the vehicle travels in a traffic jam section, the traveling direction in which the vehicle travels. On the other hand, by restricting the display of the traffic jam information on the lane in the opposite direction, the traffic jam information on the traveling direction of the host vehicle and the traffic jam information on the opposite direction to the traveling direction can be distinguished and notified to the passenger. Have an effect.

Further, in the invention according to claim 3, the importance determining means is important both for the traffic jam information regarding the lane in the traveling direction of the host vehicle and the traffic jam information for the lane opposite to the traveling direction. Traffic congestion information, the traffic congestion information display limiting means determines whether one of these two traffic congestion information,
Alternatively, by displaying both of them, there is an effect that the passenger can be notified by distinguishing the traffic jam information regarding the traveling direction of the own vehicle and the traffic jam information regarding the opposite direction to the traveling direction.

Further, in the invention according to claim 4, the traffic jam information determining means is distance calculating means for calculating the distance from the current vehicle position to the end of the traffic jam and the distance from the current vehicle position to the beginning of the traffic jam. 4. The traffic congestion information display according to claim 2 or 3, further comprising distance comparison means for determining traffic congestion information regarding a lane in the opposite direction when the distance to the traffic congestion end is shorter than the traffic congestion head. It is a device, and has an effect of being able to accurately determine that it is traffic congestion information regarding a lane in the opposite direction.

(Embodiment 1) An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows the configuration of a traffic jam information display device according to the first embodiment of the present invention. In FIG. 1, 101 is a traffic jam information acquisition means for acquiring traffic jam information sent from outside the vehicle, 102 is a vehicle current position calculation means for calculating the current position of the vehicle, and 103 is road map information. The road map information storage unit 104 stores the acquired traffic congestion information and the traffic congestion information regarding the lane in the traveling direction of the vehicle from the calculated current vehicle position or the lane in the opposite direction to the traveling direction. Congestion information determining means for determining the congestion information regarding 105, 105 is an importance determining means for determining whether the congestion information is important information for the passenger, and 106 displays only the congestion information important for the passenger. The traffic congestion information display limiting means 107 for limiting the display is a display screen.

Next, the operation of this embodiment will be described. First, the traffic jam information acquisition unit 101 acquires traffic jam information sent from outside the vehicle. Further, the own vehicle current position calculating means 102 calculates the current position of the own vehicle. Based on the traffic jam information acquired by the traffic jam information acquisition unit 101 and the current position of the vehicle calculated by the current vehicle position calculation unit 102, the traffic congestion information determination unit 104 determines the direction from the current vehicle position toward the traffic congestion position and the traffic congestion end. If the angle between the direction toward the top of the traffic congestion is less than a certain value, it is determined that the acquired traffic congestion information is traffic congestion information regarding the lane in the traveling direction of the host vehicle, and the above angle is greater than a certain value. In this case, it is determined that the traffic information is traffic congestion information regarding a lane opposite to the traveling direction. Based on the determination result by the congestion information determination unit 104, the importance degree determination unit 105 determines that the congestion information regarding the lane in the traveling direction of the host vehicle is important. The traffic congestion information display limiting means 106 is the importance determining means 1
The display is restricted so as not to display the traffic congestion information on the lane in the opposite direction to the traveling direction of the own vehicle determined to be unimportant according to 05. Based on the display restriction of the traffic congestion information by the traffic congestion information display restricting unit 106, only the traffic congestion information to be displayed is displayed on the display screen 107 so as to overlap with the road map stored in the road map information storage unit 103.

Although it has been described that the importance degree determining means 105 determines that the traffic jam information regarding the lane in the traveling direction of the own vehicle is important information, the traffic congestion information regarding the lane in the opposite direction to the traveling direction of the own vehicle. May be determined to be important information. Also, by providing a changeover switch for changing the display limit, the passenger operates the changeover switch to display all the traffic jam information or the traffic jam information on the lane opposite to the traveling direction of the own vehicle. The display may be restricted so as not to be displayed or the display may be restricted so as not to display the traffic jam information regarding the lane in the traveling direction of the host vehicle. Also, when displaying all traffic congestion information, the traffic congestion display color, brightness, shape, etc. are changed so that the traffic congestion information regarding the lane in the traveling direction of the vehicle can be distinguished from the traffic congestion information regarding the lane in the opposite direction. You may.

FIG. 3 shows a display example in the present embodiment. 301 is a road, 302 is the present position of the own vehicle, and 303 is a traffic jam display. In the display example shown in FIG. 3, the display is restricted so as not to display the traffic jam information regarding the lane in the opposite direction to the traveling direction of the own vehicle.

FIG. 4 shows a display example in which all traffic congestion information is displayed without restricting the traffic congestion display.

As described above, according to the first embodiment, by providing the traffic congestion information judging means 104, the importance degree determining means 105, and the traffic congestion information display limiting means 106, it is possible to detect the traveling direction of the own vehicle. The display can be restricted so as not to display the traffic jam information regarding the lane in the opposite direction.

(Embodiment 2) FIG. 2 shows a second embodiment of the present invention, in which the traffic congestion information judging means 104 in FIG.
It shows the configuration of FIG. In FIG. 2, 201 is a traffic jam end position acquisition means for acquiring the traffic jam tail position from the traffic jam information, 202 is a traffic jam head position acquisition means for acquiring the traffic jam head position from the traffic jam information, and 203 is a vehicle from the traffic jam tail position. A distance calculating means for calculating the distance to the current position and the distance from the traffic jam leading position to the current position of the vehicle, 20
Reference numeral 4 is a distance comparison means for comparing the distance from the end position of the traffic jam to the current position of the own vehicle with the distance from the leading position of the traffic jam to the current position of the own vehicle.

Next, the operation of this embodiment will be described with reference to FIG. First, for the traffic jam A shown in FIG. 5, the traffic jam tail position acquisition means 201 acquires the traffic jam tail position A1 from the traffic jam information. Traffic jam top position acquisition means 20
2 acquires the traffic jam head position A2 from the traffic jam information. Based on the acquired traffic jam tail position, traffic jam head position, and current vehicle position, the distance calculating means 203 determines the distance D1 from the traffic jam tail position to the vehicle current position and the distance D2 from the traffic jam leading position to the vehicle current position. And calculate. Distance determining means 204
Compares the magnitude based on the calculated distance. Distance D2
Is greater than the distance D1, it is determined that the traffic jam information is traffic jam information regarding the lane in the traveling direction of the host vehicle. Next, the congestion B shown in FIG. 5 is determined by the same procedure as the case of the congestion A. In case of traffic jam B, distance D1 is distance D
Since it is greater than 2, it is determined that the traffic jam information is traffic jam information regarding the lane in the opposite direction to the traveling direction of the own vehicle.

The calculation of the distance from the end position of the traffic jam to the current position of the vehicle and the distance from the head position of the traffic jam to the current position of the vehicle is to calculate the distance along the road as shown in FIG. However, the distance calculation process may be simplified by calculating the straight-line distance from the traffic jam end position to the current vehicle position and the straight-line distance from the traffic jam front position to the current vehicle position.

As described above, according to the second embodiment,
Congestion end position acquisition means 201 and congestion start position acquisition means 2
02, the distance calculation means 203, and the distance comparison means 204 are provided, so that it is possible to accurately determine that the traffic information is about the lane in the opposite direction to the traveling direction of the host vehicle.

[0024]

As is apparent from the above-described embodiment, the present invention relates to traffic congestion information regarding the lane in the traveling direction of the vehicle when the vehicle travels in a traffic jam section, or lanes in the opposite direction. By determining whether the traffic information is traffic congestion information, it is possible to display only traffic congestion information in the traveling direction of the vehicle, if necessary. It is possible to display only the traffic jam information that is important to the person, and it is possible to improve the visibility of the traffic jam information display.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a traffic jam information display device according to a first embodiment of the present invention.

FIG. 2 is a block diagram showing a configuration of a traffic jam information determining unit according to the second embodiment of the present invention.

FIG. 3 is a screen diagram showing a display example of a traffic jam information display device according to the first embodiment of the present invention.

FIG. 4 is a screen diagram showing another display example of the traffic jam information display device according to the first embodiment of the present invention.

FIG. 5 is a schematic diagram illustrating the operation of a traffic jam information determination unit according to the second embodiment of the present invention.

FIG. 6 is a screen diagram showing a display example of a traffic jam information display device according to a conventional technique.

FIG. 7 is a screen diagram showing a display example of a traffic jam information display device according to a conventional technique.

[Explanation of symbols]

 101 Congestion Information Acquisition Means 102 Current Vehicle Position Calculation Means 103 Road Map Information Storage Means 104 Congestion Information Judgment Means 105 Importance Determining Means 106 Congestion Information Display Restriction Means 107 Display Screen 201 Congestion End Position Acquisition Means 202 Congestion Top Position Acquisition Means 203 Distance calculating means 204 Distance comparing means

Claims (4)

[Claims] 1. When the vehicle travels in a congested section, it is determined whether the traffic information is traffic information regarding a lane in the traveling direction in which the vehicle travels or traffic information regarding a lane opposite to the traveling direction. Congestion information determination means, importance determination means for determining whether the determined congestion information is important information for passengers, and display to display only congestion information important for passengers Traffic information display device including traffic congestion information display restriction means for restricting traffic congestion. 2. The importance degree determining means determines that the traffic jam information regarding the lane in the traveling direction of the vehicle is important traffic congestion information, and the traffic congestion information display restricting means determines the traffic direction with respect to the traveling direction of the vehicle. The traffic jam information display device according to claim 1, wherein display of traffic jam information regarding lanes in the opposite direction is restricted. 3. The importance determining means determines that both the traffic congestion information regarding the lane in the traveling direction of the host vehicle and the traffic congestion information regarding the lane opposite to the traveling direction are important traffic congestion information, 2. The traffic jam information display device according to claim 1, wherein the traffic jam information display limiting means displays either or both of these two traffic jam information. 4. The congestion information determining means calculates a distance from the current vehicle position to the end of the traffic jam and a distance from the current vehicle position to the beginning of the traffic jam, and a distance to the end of the traffic jam. 4. The traffic congestion information display device according to claim 2, further comprising distance comparison means for determining traffic congestion information regarding a lane in the opposite direction when the distance is shorter than the distance to the head.