JP7009849B2 - Map display control device, map display device, map display control method and map display control program - Google Patents

Description

The present invention relates to a map display control device, a map display device, a map display control method, and a map display control program.

A map display device such as a car navigation device mounted on a moving body such as a vehicle displays map information on a display unit and displays various information such as traffic lights, public facilities, and stores contained in the displayed map. And provide the user with information about the surrounding area. Further, the HUD (Head-Up Display) that displays a virtual image in the driver's field of view provides information by displaying vehicle information such as speed, and improves convenience.

For example, the vehicle virtual image display system described in Patent Document 1 includes a communication unit, an image analysis unit, and a controller, and displays a light color virtual image on the HUD. The communication unit wirelessly receives the light color state of the traffic light that the own vehicle is going to pass through, and the image analysis unit analyzes the actual scene image of the own vehicle in the traveling direction captured by the camera, and whether the traffic light exists in the actual scene image. To judge. When the traffic light does not exist in the actual scene image, the controller causes the HUD to display a light color virtual image indicating the light color state of the traffic light based on the light color state of the traffic light input from the communication unit.

Japanese Unexamined Patent Publication No. 2016-112984

In the virtual image display system for vehicles described in Patent Document 1, since the light color virtual image is not displayed together with the map information, it is difficult to intuitively recognize where the information is for the signal. Further, when a plurality of traffic lights are continuous on the road and a plurality of displays are displayed corresponding to the plurality of traffic lights, it may be unclear which traffic light the information is for.

The present invention has been made in view of such circumstances, and an object thereof is a map display control device, a map display device, and a map capable of displaying the state of a signal on a map to improve recognition. The present invention is to provide a display control method and a map display control program.

The map display control device according to an aspect of the present invention has a traffic light information acquisition unit that acquires traffic light information in the traveling direction of the vehicle, a map information acquisition unit that acquires map information including the traveling direction of the vehicle, and the traffic light information. Based on this, the map information includes a display control unit that displays the state of the traffic light existing in the traveling direction of the vehicle on the road in the traveling direction of the vehicle regulated by the traffic light.

Another aspect of the present invention is a map display control method. This map display control method includes a traffic light information acquisition step for acquiring traffic light information in the traveling direction of the vehicle, a map information acquisition step for acquiring map information including the traveling direction of the vehicle, and the vehicle based on the traffic light information. It is provided with a display control step for displaying the state of the traffic light existing in the traveling direction of the vehicle on the road in the traveling direction of the vehicle regulated by the traffic light in the map information.

According to the present invention, the state of a traffic light can be displayed on a map to improve recognition.

It is a block diagram which shows the structure of the map display apparatus including the map display control apparatus which concerns on Embodiment 1. FIG. It is a schematic diagram which shows the display example when the route is not set. It is a schematic diagram which shows the display example when a route is set. It is a flowchart which shows the procedure of the state display process of a traffic light. It is a schematic diagram which shows the display example when the route in Embodiment 2 is not set. It is a schematic diagram which shows the display example when the route in Embodiment 2 is set. It is a flowchart which shows the procedure of the state display process of a traffic light in Embodiment 2. It is a schematic diagram which shows the display example in Embodiment 3. It is a schematic diagram which shows the display example in Embodiment 3. It is a flowchart which shows the procedure of the state display pattern processing of a traffic light in Embodiment 3.

Hereinafter, the present invention will be described with reference to FIGS. 1 to 10 based on a preferred embodiment. The same or equivalent components and members shown in the drawings shall be designated by the same reference numerals, and duplicate description thereof will be omitted as appropriate. Further, the dimensions of the members in each drawing are shown in an appropriately enlarged or reduced size for easy understanding. In addition, some of the members that are not important for explaining the embodiment in each drawing are omitted and displayed.

(Embodiment 1)
FIG. 1 is a block diagram showing a configuration of a map display device 100 including a map display control device 20 according to the first embodiment. The map display device 100 displays the map information and the current position of the own vehicle, and also displays the state of the traffic light, that is, the light color of the traffic light and the time until the light color changes based on the acquired traffic light information. The map display device 100 is, for example, a car navigation device mounted on a moving body such as a vehicle or a portable device used in a vehicle. The map display device 100 includes a GPS receiver 11, a storage unit 12, a traffic light information receiving unit 13, a display unit 14, an input unit 15, and a map display control device 20. Further, the map display device 100 may have a voice output unit for guiding the user by voice.

The GPS receiver 11 receives a GPS signal from a GPS satellite and outputs the received GPS signal to the map display control device 20. The storage unit 12 is a storage device composed of, for example, an SSD (Solid State Drive), a hard disk, a CD-ROM, a DVD, or the like, and stores map data (corresponding to map information). Map data also includes information on the location of traffic lights on roads and intersections. Map data and information on the location of traffic lights at roads and intersections are stored in the storage unit 12 and output to the map display control device 20, and also communicate with an information providing server (not shown) using a communication device. It may be acquired from the information providing server.

The traffic light information receiving unit 13 acquires traffic light information including the state of the traffic light from the traffic light information transmitting device 6 installed on the road by wireless communication. The traffic light information includes information such as the light color of at least one traffic light and the time until the light color of the traffic light changes. The traffic light information transmitting device 6 transmits traffic light information including the state of at least one traffic light in the vicinity, but may transmit the state of a plurality of surrounding traffic lights. The traffic light information receiving unit 13 acquires traffic light information including the state of at least one or a plurality of traffic lights in the traveling direction of the vehicle. Further, the traffic light information receiving unit 13 receives the state of the traffic light acquired by image analysis from the captured image of the image pickup device available to the map display device 100, that is, the light color of the traffic light from the image pickup device by wire or wirelessly. You may do so. When a plurality of traffic lights are shown in the captured image of the image pickup device, the traffic light information including the states of the plurality of traffic lights can be obtained. The image pickup device referred to here is, for example, a camera provided in the vehicle body or the interior of the vehicle facing forward and capable of acquiring a captured image by the map display device 100, or a camera integrally provided in the map display device 100. And so on.

The display unit 14 includes a liquid crystal display, an organic EL (Electro Luminescence) display, an LED (Light Emitting Diode) display, and the like. The display unit 14 displays map information, information such as the current position of the own vehicle, traveling routes, and information related to operations based on instructions from the map display control device 20. Further, the display unit 14 may be a HUD, and the map information and the state of the traffic light are displayed on the HUD as a virtual image.

The input unit 15 is composed of switches such as an operation key, a cross key, and a touch panel, and receives an operation input by the user. The input unit 15 may be, for example, a touch panel incorporated in the display unit 14 when the display unit 14 is a display such as a liquid crystal display. Further, the input unit 15 may accept a voice input operation by voice, and a gesture input operation using an image pickup unit or an optical sensor.

The map display control device 20 includes a current position information acquisition unit 21, a map information acquisition unit 22, a route setting unit 23, a traffic light information acquisition unit 24, and a display control unit 25. The map display control device 20 is configured by, for example, a CPU or the like, and executes processing by the above-mentioned parts according to a computer program stored in a non-volatile memory (not shown) and various information used in the computer program.

In the map display control device 20, the current position information acquisition unit 21 calculates the current position (latitude, longitude) of the own vehicle based on the signal acquired from the GPS receiver 11 that receives the signal from the GPS satellite, and acquires the map information. Output to unit 22. The map information acquisition unit 22 acquires map data from the storage unit 12. The map information acquisition unit 22 outputs the map data acquired from the storage unit 12 and the current position of the own vehicle acquired from the current position information acquisition unit 21 to the display control unit 25.

The route setting unit 23 acquires the map data and the current position information of the own vehicle from the map information acquisition unit 22. Further, the route setting unit 23 acquires the route setting information including the destination, the route setting condition, etc. input by the user from the input unit 15. The route setting unit 23 connects, for example, the current position and the destination, and creates a route candidate that meets the route setting conditions based on the map data. The route setting conditions are, for example, conditions such as a short travel time and a short distance. The route setting unit 23 outputs to the display control unit 25 as route information including the set route selected by the user from the created route candidates.

The traffic light information acquisition unit 24 acquires traffic light information including the state of at least one or a plurality of traffic lights in the traveling direction of the vehicle via the traffic light information receiving unit 13, and outputs the traffic light information to the display control unit 25. The traffic light information includes the state of the traffic light with respect to the road on which the vehicle travels.

The display control unit 25 acquires map data and the current position from the map information acquisition unit 22, and causes the display unit 14 to display the map, the current position, and the traveling direction. The display control unit 25 shall calculate the traveling direction based on, for example, a change in the current position. The display control unit 25 acquires route information including the set route from the route setting unit 23, and displays the route information on the display unit 14. The display control unit 25 displays a map at a scale set by the user, accepts a scroll operation to the north, south, east, and west by the input unit 15, and appropriately changes the map display. Further, the display control unit 25 causes the display unit 14 to display an image of the road on the set route filled with a predetermined color so that the set route can be identified on the map displayed on the display unit 14.

The display control unit 25 acquires the traffic light information from the traffic light information acquisition unit 24, and displays the state of the latest traffic light existing in the traveling direction around the traffic light on the map displayed by the display unit 14. The display control unit 25 causes the display unit 14 to display the state of the traffic light in real time. On the map displayed on the display unit 14, the display control unit 25 causes the display unit 14 to display the road in the traveling direction of the vehicle regulated by the traffic light, for example, by the current light color. Further, the display control unit 25 fills the area including the road (for example, a fan-shaped area) in the traveling direction of the vehicle regulated by the traffic light semi-transparently with the light color of the traffic light to improve the recognition as a larger image. You may.

FIG. 2 is a schematic diagram showing a display example when a route is not set, and FIG. 3 is a schematic diagram showing a display example when a route is set. In the display example shown in FIG. 2, at the intersection where the nearest traffic light is located, the color of the traffic light on the road on which the vehicle is traveling is, for example, red. The display control unit 25 includes a road regulated by a traffic light in the traveling direction of the vehicle, that is, an intersection, and displays the road ahead of the intersection, the road ahead of the intersection, the road ahead of the left turn, and the road ahead of the right turn by the light color of the traffic light. Displayed in unit 14. As shown in FIG. 2, the map becomes easier to see by adding a gradation that becomes faint on the distant side depending on the lighting color of the traffic light, but the map may be displayed without the gradation.

In FIG. 3, the road on the set route is painted in orange or the like and displayed on the display unit 14. The display control unit 25 causes the display unit 14 to display the road regulated by the traffic light (straight road in FIG. 3) in the set route so as to be filled with the light color of the traffic light. In FIGS. 2 and 3, the road regulated by the traffic light is painted in blue if the light color of the traffic light is blue, and yellow if the light color is yellow, and is displayed on the display unit 14.

Next, the operation of the map display control device 20 in the first embodiment will be described based on the state display processing of the traffic light. FIG. 4 is a flowchart showing the procedure of the state display processing of the traffic light. The display control unit 25 of the map display control device 20 extracts the nearest traffic light existing in the traveling direction on the traveling road based on the map data (S1).

The display control unit 25 determines whether or not there is a set route (S2), and when it is determined that there is no set route (S2: NO), the road regulated by the traffic light at the intersection where the nearest traffic light is located. Is extracted without limitation (S3). For example, in the example shown in FIG. 2, a straight ahead road, a left turn destination road, and a right turn destination road are extracted. In other words, roads in all directions that can be reached at the nearest intersection are extracted. When it is determined in step S2 that there is a set route (S2: YES), the road on the set route regulated by the nearest traffic light is extracted (S4). For example, in the example shown in FIG. 3, the road ahead is extracted. In other words, the road in the direction following the set route is extracted at the nearest intersection. After step S3 and step S4, the display control unit 25 acquires the traffic light information of the latest traffic light via the traffic light information acquisition unit 24 (S5). The display control unit 25 fills the extracted road regulated by the latest traffic light with the light color of the latest traffic light and displays it on the display unit 14 (S6).

The display control unit 25 determines whether or not the own vehicle has passed the latest traffic light (S7), and if it is determined that the vehicle has passed the signal (S7: YES), the display control unit 25 ends the process. If it is determined to be negative in step S7 (S7: NO), the display control unit 25 returns to step S5 and continues the process.

The map display control device 20 displays the state of the nearest traffic light existing in the traveling direction on the traveling road, that is, the light color of the traffic light on the map displayed on the display unit 14. As a result, the map display control device 20 can easily grasp the position of the nearest traffic light and the color of the light thereof for the user, and can improve the recognition of the state of the traffic light.

(Embodiment 2)
In the first embodiment, the map display control device 20 displays the state of the latest traffic light on the display unit 14, but the state of a plurality of traffic lights including the latest traffic light may be displayed. FIG. 5 is a schematic diagram showing a display example when the route in the second embodiment is not set, and FIG. 6 is a schematic diagram showing a display example when the route in the second embodiment is set. The map display control device 20 in the second embodiment corresponds to the display control unit 25 displaying the states of a plurality of traffic lights, and the configuration of each part other than the display control unit 25 is the same as that of the first embodiment.

The display control unit 25 acquires traffic light information from the traffic light information acquisition unit 24, and displays the states of a plurality of traffic lights including the latest traffic light existing in the traveling direction in the vicinity of the traffic light on the map displayed by the display unit 14. Display in real time. On the map displayed on the display unit 14, the display control unit 25 fills the road in the traveling direction of the vehicle regulated by the plurality of traffic lights with the current light color of each traffic light, for example, on the display unit 14. Display. Further, the display control unit 25 fills the area including the road (for example, a fan-shaped area) in the traveling direction of the vehicle regulated by the traffic light semi-transparently with the light color of the traffic light to improve the recognition as a larger image. You may.

In the display example shown in FIG. 5, at the intersection where the nearest traffic light A1 is located, the light color of the traffic light for the road on which the vehicle is traveling is red. The most recent traffic light is the first, and the second traffic light is the traffic light A2 on the straight ahead road, the traffic light A3 on the left turn road, and the traffic light A4 on the right turn road. The traffic light A2 is blue, the traffic light A3 is red, and the traffic light A4 is yellow for the straight ahead road, the left turn destination road, and the right turn destination road at the intersection where the nearest traffic light A1 is located. The display control unit 25 includes the roads regulated by the traffic lights A1 to A4 in the traveling direction of the vehicle, that is, the intersection, and fills the straight ahead road, the left turn destination road, and the right turn destination road beyond the intersection with the light color of the traffic light. And display it on the display unit 14. If there is only one road entering the intersection where the third and subsequent traffic lights are located ahead of the second traffic light, the status of the traffic light is also displayed on the display unit 14 for the third and subsequent traffic lights. It can be displayed, but if there are two or more roads entering, it will not be displayed.

In FIG. 6, the road on the set route is painted in orange or the like and displayed on the display unit 14. The display control unit 25 causes the display unit 14 to display the road regulated by a plurality of traffic lights including the nearest traffic light on the set route so as to be filled with the light color of the traffic light.

Next, the operation of the map display control device 20 in the second embodiment will be described based on the state display processing of the traffic light. FIG. 7 is a flowchart showing the procedure of the state display process of the traffic light in the second embodiment. The display control unit 25 of the map display control device 20 extracts a plurality of traffic lights including the nearest traffic light existing in the traveling direction on the traveling road based on the map data (S11).

The display control unit 25 determines whether or not there is a set route (S12), and when it is determined that there is no set route (S12: NO), the road regulated by each traffic light at an intersection where a plurality of traffic lights are located. Is extracted without limitation (S13). For example, in the example shown in FIG. 5, the traffic light A1 has a straight road, a left turn road and a right turn road, the traffic light A2 has a straight road, a left turn road and a right turn road, and the traffic light A3 has a left turn road and a right turn road. Extract the road. When it is determined in step S12 that there is a set route (S12: YES), the road on the set route regulated by each traffic light is extracted (S14). For example, in the example shown in FIG. 6, the straight ahead road is extracted for the traffic light B1, the left turn destination road is extracted for the traffic light B2, the straight ahead road is extracted for the traffic light B3, and the right turn destination road is extracted for the traffic light B4. After step S13 and step S14, the display control unit 25 acquires signal information of a plurality of traffic lights via the traffic light information acquisition unit 24 (S15). The display control unit 25 fills the extracted road, which is regulated by a plurality of traffic lights, with the light color of each corresponding traffic light and displays it on the display unit 14 (S16).

The display control unit 25 determines whether or not the own vehicle has passed the latest traffic light (S17), and if it is determined that the vehicle has passed the signal (S17: YES), the display control unit 25 ends the process. If it is determined to be negative in step S17 (S17: NO), the display control unit 25 returns to step S15 and continues the process.

The map display control device 20 displays the state of a plurality of traffic lights existing in the traveling direction on the traveling road, that is, the lighting color of each traffic light on the map displayed on the display unit 14. As a result, the map display control device 20 can easily grasp the positions of a plurality of traffic lights including the latest traffic light and their lighting colors, and can improve the recognition of the state of each traffic light.

(Embodiment 3)
In the third embodiment, the state of the traffic light displayed on the display unit 14 in the first and second embodiments is displayed by adding an element of time until the traffic light changes. 8 (a), 8 (b), 9 (a) and 9 (b) are schematic views showing a display example in the third embodiment. The map display control device 20 in the third embodiment corresponds to the display in which the element of the time until the traffic light changes is added in the display control unit 25, and the configurations of each part other than the display control unit 25 are the first embodiment and the embodiment. It is the same as 2.

The display control unit 25 acquires traffic light information including time information until the current light color changes from the traffic light information acquisition unit 24, and displays the state of the latest traffic light existing in the traveling direction on the display unit 14. Display in real time around traffic lights on the map. The display control unit 25 changes the display pattern of the state of the traffic light according to the time information in the traveling direction of the vehicle regulated by the traffic light on the map displayed on the display unit 14. The display control unit 25 gradually converges the display pattern to the traffic light side as the time until the light color of the traffic light changes becomes shorter, and when the light color changes, it converges to the traffic light side and erases. indicate.

For example, the display control unit 25 may display the area for displaying the state of the traffic light on the display unit 14 with a display pattern having a dark gradation on the side close to the traffic light and a light gradation on the side far from the traffic light. In this case, if it takes a long time for the light color of the traffic light to change, the dimension from the side near the traffic light to the side far from the traffic light in the area for displaying the state of the traffic light is increased. As the time until the light color of the traffic light changes becomes shorter, the display control unit 25 reduces the size of the region so as to converge to the side closer to the traffic light in the region displaying the state of the traffic light. When the color of the light changes, the display control unit 25 converges the area for displaying the state of the traffic light toward the traffic light and erases it. The area for displaying the state of the traffic light may be a road or a range including the road (for example, a fan-shaped range).

In FIG. 8A, the time until the light color of the traffic light changes from red to blue is longer than, for example, 2 seconds, and the display area of the light color is displayed large. FIG. 8B shows a state in which the time required for the light color of the traffic light to change from red to blue is 2 seconds or less, and the display area of the light color is displayed in an intermediate size. FIG. 9A shows a state in which the time until the light color of the traffic light changes from red to blue is 1 second or less, and the display area of the light color is displayed small. FIG. 9B shows the time when the light color of the traffic light changes from red to blue, the red display area converges and is erased on the traffic light side, and the blue display area which is the next light color is displayed. be.

Next, the operation of the map display control device 20 in the third embodiment will be described based on the state display pattern processing of the traffic light. FIG. 10 is a flowchart showing the procedure of the state display pattern processing of the traffic light in the third embodiment. The display control unit 25 of the map display control device 20 acquires traffic light information including the time until the light color of the nearest traffic light existing in the traveling direction changes on the traveling road (S21), until the light color changes. Time countdown is started (S22). The display control unit 25 causes the display unit 14 to display a pattern in which the display area of the light color is large (S23). The display pattern in step S23 is, for example, the display shown in FIG. 8A.

The display control unit 25 determines whether or not the countdown value is 2 seconds or less (S24), and if it is determined to be negative (S24: NO), repeats the determination in step S24. When it is determined in step S24 that the time is 2 seconds or less (S24: YES), the display control unit 25 causes the display unit 14 to display the size of the display area of the light color in a pattern having an intermediate size (S25). The display pattern in step S25 is, for example, the display shown in FIG. 8B.

The display control unit 25 determines whether or not the countdown value is 1 second or less (S26), and if it is determined to be negative (S26: NO), repeats the determination in step S26. When it is determined in step S26 that the time is 1 second or less (S26: YES), the display control unit 25 causes the display unit 14 to display the light color display area in a small pattern (S27). The display pattern in step S27 is, for example, the display shown in FIG. 9A.

The display control unit 25 determines whether or not the countdown value has reached 0 seconds (S28), and if it determines whether or not the countdown value has reached 0 (S28: NO), repeats the determination in step S28. When it is determined in step S28 that the time has reached 0 seconds (S28: YES), the display control unit 25 converges and erases the display area of the current light color toward the traffic light side, and sets the display by the next light color (S28: YES). S29), the process is terminated. The display of the display unit 14 in step S29 is the state of FIG. 9B displayed by the next light color after the state display of the traffic light disappears. The display control unit 25 may change the display area of the light color intermittently or continuously according to the countdown value.

The map display control device 20 changes the state of the traffic light existing in the traveling direction on the traveling road, that is, the display of the light color of the traffic light based on the time information until the light color changes, and displays it on the display unit 14. Display on the map. As a result, the map display control device 20 can easily grasp the light color of the traffic light and the time until the light color changes, and can improve the recognition of the state of the traffic light.

Next, the features of the map display control device 20, the map display device 100, the map display control method, and the map display control program according to the first to third embodiments will be described.
The map display control device 20 includes a traffic light information acquisition unit 24, a map information acquisition unit 22, and a display control unit 25. The traffic light information acquisition unit 24 acquires traffic light information in the traveling direction of the vehicle. The map information acquisition unit 22 acquires map information including the traveling direction of the vehicle. The display control unit 25 displays the state of the traffic light existing in the traveling direction of the vehicle from the traffic light in the map information to the road in the traveling direction of the vehicle based on the traffic light information. As a result, the map display control device 20 makes it easy for the user to grasp the position of the traffic light and its state, and can improve the recognition of the state of the traffic light.

Further, the traffic light information includes the light color of the traffic light, and the display control unit 25 displays the road in the traveling direction of the vehicle from the traffic light in the light color of the traffic light. Is the carrier-to-noise ratio or signal-to-noise ratio of each signal. As a result, the map display control device 20 can easily grasp the position of the traffic light and the color of the light thereof for the user, and can improve the recognition of the state of the traffic light.

Further, the traffic light information includes time information until the light color of the traffic light changes, and the display control unit 25 changes the display of the state of the traffic light according to the time information, and converges on the traffic light side when the light color changes. Is displayed so that it can be erased. As a result, the map display control device 20 can easily grasp the light color of the traffic light and the time until the light color changes, and can improve the recognition of the state of the traffic light.

Further, the display control unit 25 displays the states of a plurality of traffic lights existing in the traveling direction of the vehicle. As a result, the map display control device 20 makes it easy for the user to grasp the positions of a plurality of traffic lights including the latest traffic light and their lighting colors, and can improve the recognition of the state of each traffic light.

Further, the display control unit 25 displays the states of a plurality of traffic lights existing on the route (that is, the set route) based on the route information of the vehicle. As a result, the map display control device 20 makes it easy for the user to grasp the positions and states of the plurality of traffic lights on the route, and can improve the recognition of the state of each traffic light.

The map display device 100 includes the above-mentioned map display control device 20 and a GPS receiver that measures the current position of the vehicle. The map display device 100 displays the current position of the vehicle together with the display by the map display control device 20. As a result, the map display device 100 makes it easy for the user to grasp the position of the traffic light and its state, and can improve the recognition of the state of the traffic light.

The map display control method includes a traffic light information acquisition step, a map information acquisition step, and a display control step. The traffic light information acquisition step acquires traffic light information in the traveling direction of the vehicle. The map information acquisition step acquires map information including the traveling direction of the vehicle. The display control step displays the state of the traffic light existing in the traveling direction of the vehicle from the traffic light in the map information to the road in the traveling direction of the vehicle based on the traffic light information. According to this map display control method, the position of the traffic light and its state can be easily grasped by the user, and the recognition of the state of the traffic light can be enhanced.

The map display control program causes a computer to execute a traffic light information acquisition step, a map information acquisition step, and a display control step. The traffic light information acquisition step acquires traffic light information in the traveling direction of the vehicle. The map information acquisition step acquires map information including the traveling direction of the vehicle. The display control step displays the state of the traffic light existing in the traveling direction of the vehicle from the traffic light in the map information to the road in the traveling direction of the vehicle based on the traffic light information. According to this map display control program, the position of the traffic light and its state can be easily grasped by the user, and the recognition of the state of the traffic light can be enhanced.

In the above-described first to third embodiments, when the traffic light prohibits going straight and turning left and the display allows turning right, the road going straight and the road turning left are red on the map displayed on the display unit 14. Then, the road ahead of the left turn should be displayed in blue. Similar to this case, the map display control device 20 corresponds to various regulated states based on the state of the traffic light, and can display the state of the traffic light on the map displayed on the display unit 14.

The above description has been made based on the embodiment of the present invention. It will be appreciated by those skilled in the art that these embodiments are exemplary and that various modifications and modifications are possible within the claims of the invention and that such modifications and modifications are also within the claims of the present invention. It is about to be done. Therefore, the descriptions and drawings herein should be treated as exemplary rather than limiting.

11 GPS receiver, 20 map display control device, 22 map information acquisition unit,
24 Traffic light information acquisition unit, 25 Display control unit, 100 Map display device.

Claims (2)

A traffic light information acquisition unit that acquires traffic light information in the traveling direction of the vehicle,
A map information acquisition unit that acquires map information including the traveling direction of the vehicle,
Based on the traffic light information, a display control unit that displays the state of the traffic light existing in the traveling direction of the vehicle on the road in the traveling direction of the vehicle regulated by the traffic light in the map information.
Equipped with
The traffic light information includes time information until the light color of the traffic light changes.
The display control unit changes the display of the state of the traffic light according to the time information, and displays the map so that it converges on the traffic light side and is erased when the light color changes. Control device. The traffic light information includes the light color of the traffic light.
The map display control device according to claim 1, wherein the display control unit displays a road in a traveling direction of the vehicle regulated by the traffic light with the light color of the traffic light.

Images