JP7294387B2 - 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 mobile object such as a vehicle displays map information on a display unit, and also displays various information such as traffic signals, public facilities, and shops included in the displayed map. to provide users with information about the surrounding area. A HUD (Head-Up Display) that displays a virtual image in the driver's field of vision provides information by displaying vehicle information such as speed, thereby improving 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 lighting color virtual image on the HUD. The communication unit receives by radio the lighting color status of the traffic signal that the vehicle is going to pass through, and the image analysis unit analyzes the image of the actual scene taken by the camera in the direction in which the vehicle is traveling, and determines whether the traffic signal exists in the image of the actual scene. judge. The controller causes the HUD to display a lighting color virtual image representing the lighting color state of the traffic signal based on the lighting color state of the traffic signal input from the communication unit when the traffic light does not exist in the actual scene image.

JP 2016-112984 A

In the vehicle virtual image display system described in Patent Document 1, since the lamp color virtual image is not displayed together with the map information, it is difficult to intuitively recognize where the traffic signal information is located. In addition, when a plurality of traffic lights are continuously on the road and a plurality of displays are displayed correspondingly, it may become unclear which traffic light the information is for.

SUMMARY OF THE INVENTION The present invention has been made in view of such circumstances, and its object is to provide a map display control device, a map display device, and a map display device capable of displaying the status of a traffic light on a map to improve recognition. An object of the present invention is to provide a display control method and a map display control program.

A map display control device according to one aspect of the present invention includes a traffic signal information acquiring unit that acquires traffic signal information in a vehicle traveling direction, a map information acquiring unit that acquires map information including the vehicle traveling direction, and the traffic signal information. a display control unit for displaying the state of a traffic signal existing in the traveling direction of the vehicle on a road in the traveling direction of the vehicle restricted by the traffic signal in the map information, wherein the traffic signal information is the traffic signal The display control unit extracts a road in the direction of travel of the vehicle restricted by the traffic light based on the route information of the vehicle according to the presence or absence of a set route, The extracted road is displayed in the current light color of the nearest traffic light existing in the running direction of the vehicle.

Another aspect of the present invention is a map display control method. This map display control method includes a traffic signal information obtaining step of obtaining traffic signal information in the traveling direction of a vehicle, a map information obtaining step of obtaining map information including the traveling direction of the vehicle, and a map information obtaining step of obtaining map information including the traveling direction of the vehicle; and a display control step of displaying the state of a traffic signal existing in the traveling direction of the vehicle on a road in the traveling direction of the vehicle restricted by the traffic signal in the map information, wherein the traffic signal information is the current light color of the traffic signal. The display control step includes: extracting a road in the direction of travel of the vehicle that is regulated by the traffic light based on the route information of the vehicle according to the presence or absence of a set route; The road is displayed in the current light color of the nearest traffic light present in the direction of travel of the vehicle.

ADVANTAGE OF THE INVENTION According to this invention, the state of a traffic light can be displayed on a map and recognition property can be improved.

1 is a block diagram showing the configuration of a map display device including a map display control device according to Embodiment 1; FIG. FIG. 10 is a schematic diagram showing a display example when no route is set; FIG. 11 is a schematic diagram showing a display example when a route is set; It is a flowchart which shows the procedure of a state display process of a traffic light. FIG. 11 is a schematic diagram showing a display example when no route is set according to the second embodiment; FIG. 11 is a schematic diagram showing a display example when a route is set according to the second embodiment; 10 is a flow chart showing the procedure of traffic light status display processing according to the second embodiment. FIG. 11 is a schematic diagram showing a display example in Embodiment 3; FIG. 11 is a schematic diagram showing a display example in Embodiment 3; FIG. 11 is a flow chart showing a procedure of traffic signal status display pattern processing in Embodiment 3. FIG.

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described below based on preferred embodiments with reference to FIGS. 1 to 10. FIG. The same or equivalent constituent elements and members shown in each drawing are denoted by the same reference numerals, and duplication of description will be omitted as appropriate. In addition, the dimensions of the members in each drawing are appropriately enlarged or reduced for easy understanding. Also, in each drawing, some of the members that are not important for explaining the embodiments are omitted.

(Embodiment 1)
FIG. 1 is a block diagram showing the 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 vehicle, and also displays the status 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 object such as a vehicle or a portable device used inside the vehicle. The map display device 100 includes a GPS receiver 11 , a storage unit 12 , a traffic signal information reception 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 providing guidance to the user by voice.

The GPS receiver 11 receives GPS signals from GPS satellites and outputs the received GPS signals to the map display control device 20 . The storage unit 12 is a storage device configured by, for example, an SSD (Solid State Drive), hard disk, CD-ROM, DVD, etc., and stores map data (corresponding to map information). Map data also includes information on the locations of traffic lights on roads and intersections. Map data and information on the locations of traffic signals on roads and intersections are stored in the storage unit 12 and output to the map display control device 20, and communicated with an information providing server (not shown) using a communication device, It may be obtained 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 nearby traffic light, but may transmit the states 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 more traffic lights in the running direction of the vehicle. Further, the traffic light information receiving unit 13 receives the state of the traffic light, that is, the light color of the traffic light obtained by image analysis from the captured image of the imaging device that the map display device 100 can use, from the imaging device by wire or wirelessly. You may do so. When a plurality of traffic lights are captured in the captured image of the imaging device, traffic light information including the states of the plurality of traffic lights is obtained. The imaging device referred to here is, for example, a camera that is provided facing forward in the vehicle body or the interior of the vehicle and that allows the map display device 100 to acquire a captured image, or a camera that is integrally provided in the map display device 100. and so on.

The display unit 14 is configured by a liquid crystal display, an organic EL (Electro Luminescence) display, an LED (Light Emitting Diode) display, or the like. The display unit 14 displays information such as map information, the current position of the host vehicle, the travel route, and information related to operations based on instructions from the map display control device 20 . Also, the display unit 14 may be a HUD, and the map information and the state of the traffic lights are displayed on the HUD as virtual images.

The input unit 15 is composed of switches such as operation keys, a cross key, and a touch panel, and receives operation inputs from the user. For example, when the display unit 14 is a liquid crystal display, the input unit 15 may be a touch panel incorporated in the display. Also, the input unit 15 may accept a voice input operation using voice, or a gesture input operation using an imaging unit or an optical sensor.

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

In the map display control device 20, the current position information acquisition unit 21 calculates the current position (latitude and 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 the 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 host 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 . The route setting unit 23 also acquires from the input unit 15 route setting information including the destination, route setting conditions, and the like input by the user. The route setting unit 23 connects the current position and the destination, for example, and creates route candidates that meet 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 among 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 reception unit 13 and outputs the information to the display control unit 25 . The traffic light information includes the state of the traffic light for the road on which the vehicle travels.

The display control unit 25 acquires the 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. It is assumed that the display control unit 25 calculates the traveling direction based on the change in the current position, for example. 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 according to a scale set by the user, receives a scrolling operation to the north, south, east, and west with 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 in which the roads on the set route are painted 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 traffic light information from the traffic light information acquisition unit 24 and displays the state of the nearest traffic light in the direction of travel around the traffic light on the map displayed on 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. The display control unit 25 causes the display unit 14 to display the roads in the direction of travel of the vehicle that are restricted by the traffic lights on the map displayed on the display unit 14 in the current light color, for example, in a blacked-out manner. In addition, the display control unit 25 fills an area (for example, fan-shaped area) containing the road in the traveling direction of the vehicle that is restricted by the traffic light translucent with the light color of the traffic light so as to increase the recognizability of the image as a larger image. may

FIG. 2 is a schematic diagram showing a display example when no route is 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, the light color of the traffic signal for the road on which the vehicle is traveling is, for example, red at the intersection with the traffic signal nearby. The display control unit 25 displays roads that are regulated by traffic lights in the running direction of the vehicle, that is, intersections, and displays the straight ahead roads, left turn roads, and right turn roads ahead of the intersections by filling them with the light color of the traffic lights. display on the part 14. As shown in FIG. 2, the map becomes easier to see by adding a gradation that becomes lighter on the far side depending on the light color of the traffic light, but the map may be displayed without adding a gradation.

In FIG. 3, the roads on the set route are displayed on the display unit 14, for example, in orange. The display control unit 25 causes the display unit 14 to display the roads (straight roads in FIG. 3) that are regulated by the traffic lights on the set route by filling them with the light color of the traffic lights. 2 and 3, roads regulated by traffic lights are displayed on the display unit 14 in blue if the light color of the traffic light is blue, and in yellow if the light color of the traffic light is yellow.

Next, the operation of the map display control device 20 according to the first embodiment will be described based on the traffic signal status display processing. FIG. 4 is a flow chart showing the procedure of a signal status display process. The display control unit 25 of the map display control device 20 extracts the nearest traffic light existing in the running direction on the road on which the vehicle is running based on the map data (S1).

The display control unit 25 determines whether or not there is a set route (S2), and if it determines 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 road, a left turn road, and a right turn road are extracted. In other words, roads in all directions that can be reached at the nearest intersection are extracted. If it is determined in step S2 that there is a set route (S2: YES), roads on the set route that are regulated by the nearest traffic lights are extracted (S4). For example, in the example shown in FIG. 3, straight ahead roads are extracted. In other words, the roads in the direction following the set route are extracted at the nearest intersection. After steps S3 and S4, the display control unit 25 acquires the traffic light information of the nearest traffic light via the traffic light information acquisition unit 24 (S5). The display control unit 25 causes the display unit 14 to display the extracted road, which is restricted by the nearest traffic light, in the light color of the nearest traffic light (S6).

The display control unit 25 determines whether or not the host vehicle has passed the nearest traffic light (S7), and when it determines that it has passed (S7: YES), ends the process. If the determination in step S7 is negative (S7: NO), the display control unit 25 returns to step S5 and continues the process.

The map display control device 20 displays on the map displayed on the display unit 14 the state of the nearest traffic light existing in the direction of travel on the road on which the vehicle is running, that is, the light color of the traffic light. As a result, the map display control device 20 makes it easy for the user to grasp the position of the nearest traffic light and its lighting color, and can enhance 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 most recent traffic signal on the display unit 14, but the states of a plurality of traffic signals including the most recent traffic signal may be displayed. FIG. 5 is a schematic diagram showing a display example when no route is set according to the second embodiment, and FIG. 6 is a schematic diagram showing a display example when a route is set according to the second embodiment. The map display control device 20 according to the second embodiment corresponds to the display control unit 25 displaying the states of a plurality of traffic lights, and the configuration of each unit 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 nearest traffic light existing in the running direction around the traffic lights on the map displayed on the display unit 14. Display in real time. On the map displayed on the display unit 14, the display control unit 25 displays the roads in the direction in which the vehicle is traveling that are restricted by a plurality of traffic lights in the current light color of each traffic light, for example. display. In addition, the display control unit 25 fills an area (for example, fan-shaped area) containing the road in the traveling direction of the vehicle that is restricted by the traffic light translucent with the light color of the traffic light so as to increase the recognizability of the image as a larger image. may

In the display example shown in FIG. 5, the light color of the traffic signal for the road on which the vehicle is traveling is red at the intersection where the nearest traffic signal A1 is present. The nearest traffic light is the first traffic light, and the second traffic light ahead 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 road, and the right turn road of the intersection with the nearest traffic light A1. The display control unit 25 includes the roads regulated by the traffic lights A1 to A4 in the running direction of the vehicle, that is, the intersections, and paints out the straight ahead road, the left turn road, and the right turn road beyond the intersection with the light color of the traffic lights. to display on the display unit 14. When there is only one road that enters an intersection where there is a third or subsequent traffic signal ahead of the second traffic light, the state of the third or subsequent traffic signal is also displayed on the display unit 14. It can be displayed, but if there are two or more roads to enter, it will not be displayed.

In FIG. 6, the roads on the set route are displayed on the display unit 14, for example, filled with orange. The display control unit 25 causes the display unit 14 to display the roads that are regulated by a plurality of traffic lights including the nearest traffic light on the set route by filling them with the light color of the traffic lights.

Next, the operation of the map display control device 20 according to the second embodiment will be described based on the traffic signal status display processing. FIG. 7 is a flow chart showing the procedure of a signal status display process according to the second embodiment. The display control unit 25 of the map display control device 20 extracts a plurality of traffic signals including the nearest traffic signal present in the direction of travel on the road on which the vehicle is traveling based on the map data (S11).

The display control unit 25 determines whether or not there is a set route (S12), and if 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 straight road, left turn road, and right turn road for traffic light A1, the straight road, left turn road, and right turn road for traffic light A2, and the left turn road and right turn road for traffic light A3 Extract roads. If it is determined in step S12 that there is a set route (S12: YES), roads on the set route that are regulated by each traffic light are extracted (S14). For example, in the example shown in FIG. 6, the straight ahead road is extracted for the signal B1, the left turn road is extracted for the signal B2, the straight ahead road is extracted for the signal B3, and the right turn road is extracted for the signal B4. After steps S13 and S14, the display control unit 25 acquires traffic signal information of a plurality of traffic signals via the traffic signal information acquisition unit 24 (S15). The display control unit 25 causes the display unit 14 to display the extracted roads, which are restricted by a plurality of traffic lights, in the light color of the corresponding traffic lights (S16).

The display control unit 25 determines whether or not the host vehicle has passed the nearest traffic light (S17), and when it determines that it has passed (S17: YES), ends the process. If it is determined NO in step S17 (S17: NO), the display control unit 25 returns to step S15 and continues the processing.

The map display control device 20 displays the states of a plurality of traffic lights existing in the direction of travel on the road on which the vehicle is running, that is, the lighting colors of the traffic lights on the map displayed on the display unit 14 . 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 nearest traffic light and their lighting colors, thereby enhancing the recognizability of the status 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 further added with an element of time until the traffic light changes. FIGS. 8A, 8B, 9A, and 9B are schematic diagrams showing display examples according to the third embodiment. The map display control device 20 according to the third embodiment corresponds to the display with the element of the time until the traffic signal changes in the display control unit 25, and the configuration of each unit other than the display control unit 25 is the same as that of the first embodiment and the embodiment. 2.

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

For example, the display control unit 25 may cause the display unit 14 to display the area for displaying the state of the traffic light in a display pattern in which the area closer to the traffic light is darker and the farther side is lighter. In this case, if it takes a long time for the light color of the traffic signal to change, the dimension from the side closer to the traffic signal to the farther side in the area for displaying the status of the traffic signal 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 area in which the state of the traffic signal is displayed so as to converge on the side closer to the traffic signal. The display control unit 25 converges the area displaying the state of the traffic light to the traffic light side and erases the area when the light color changes. 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 required for the light color of the traffic light to change from red to blue is longer than, for example, 2 seconds, and the display area of the light color is displayed in a large size. FIG. 8B shows a state in which the time it takes for the light color of the traffic light to change from red to blue is 2 seconds or less, and the display area for the light color is displayed in an intermediate size. FIG. 9(a) shows a state in which the time it takes for the light color of the traffic light to change from red to blue is 1 second or less, and the display area of the light color is displayed in a small size. FIG. 9(b) shows the time when the light color of the traffic light changes from red to blue. The red display area converges and disappears on the traffic light side, and the next light color, blue display area, is displayed. be.

Next, the operation of the map display control device 20 according to the third embodiment will be described based on the traffic signal status display pattern processing. FIG. 10 is a flow chart showing the procedure of traffic signal status display pattern processing according to 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 that exists in the running direction on the road on which the vehicle is running changes (S21), and waits until the light color changes. start counting down the time (S22). The display control unit 25 causes the display unit 14 to display a pattern in which the display area of the lamp color is large (S23). The display pattern in step S23 is, for example, the display shown in FIG. 8(a).

The display control unit 25 determines whether or not the countdown value has reached 2 seconds or less (S24), and when it determines no (S24: NO), repeats the determination of step S24. If it is determined in step S24 that the time is two seconds or less (S24: YES), the display control unit 25 causes the display unit 14 to display a pattern in which the size of the display area of the light color is about medium (S25). The display pattern in step S25 is, for example, the display shown in FIG. 8(b).

The display control unit 25 determines whether or not the countdown value has become one second or less (S26), and when it determines that it is not (S26: NO), repeats the determination of step S26. If it is determined in step S26 that the time has become one second or less (S26: YES), the display control unit 25 causes the display unit 14 to display a pattern in which the display area of the light color is small (S27). The display pattern in step S27 is, for example, the display shown in FIG.

The display control unit 25 determines whether or not the countdown value has reached 0 seconds (S28), and if it determines no (S28: NO), repeats the determination of step S28. If it is determined that 0 second has elapsed in step S28 (S28: YES), the display control unit 25 converges the display area of the current light color on the traffic light side, erases the display area, and displays the next light color ( S29), the process ends. The display on the display unit 14 in step S29 disappears and the state of the traffic light disappears, and the state shown in FIG. 9B is displayed in the next light color. The display control unit 25 may intermittently change the light color display area according to the countdown value, or may change it continuously.

The map display control device 20 changes the state of the traffic lights present in the direction of travel on the road on which the vehicle is running, that is, the display of the light color of the traffic lights, based on the time information until the light color changes, and displays it on the display unit 14. displayed on the map. As a result, the map display control device 20 makes it easy for the user to grasp the light color of the traffic light and the time until the light color changes, thereby enhancing the ability to recognize the state of the traffic light.

Next, 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 Embodiments 1 to 3 will be described.
The map display control device 20 includes a traffic light information acquisition section 24 , a map information acquisition section 22 and a display control section 25 . The traffic light information acquisition unit 24 acquires traffic light information in the running direction of the vehicle. The map information acquisition unit 22 acquires map information including the traveling direction of the vehicle. Based on the traffic light information, the display control unit 25 displays the state of the traffic lights present in the running direction of the vehicle on the road in the running direction of the vehicle from the traffic lights in the map information. As a result, the map display control device 20 makes it easy for the user to grasp the position and state of the traffic light, and can enhance the recognizability of the state of the traffic light.

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 the respective signal. As a result, the map display control device 20 makes it easy for the user to grasp the position of the traffic signal and the color of the light, thereby enhancing the ability to recognize the status of the traffic signal.

The traffic light information includes time information until the light color of the traffic light changes. displayed so that it is erased by pressing As a result, the map display control device 20 makes it easy for the user to grasp the light color of the traffic light and the time until the light color changes, thereby enhancing the ability to recognize the state of the traffic light.

The display control unit 25 also displays the states of a plurality of traffic lights that are present in the running 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 nearest traffic light and their lighting colors, thereby enhancing the recognizability of the status of each traffic light.

Also, the display control unit 25 displays the states of a plurality of traffic signals 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 enhance the recognizability of the states of the traffic lights.

The map display device 100 includes the map display control device 20 described above and a GPS receiver that measures the current position of the vehicle. The map display device 100 displays the current position of the vehicle along with the display by the map display control device 20 . As a result, the map display device 100 makes it easier for the user to grasp the position and state of the traffic light, and can enhance the recognizability 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 signal information acquisition step acquires traffic signal 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 signal existing in the traveling direction of the vehicle on the road in the traveling direction of the vehicle from the traffic signal in the map information based on the traffic signal information. According to this map display control method, the position and state of the traffic light can be easily grasped by the user, and the recognizability of the state of the traffic light can be enhanced.

The map display control program causes the computer to execute a traffic light information acquisition step, a map information acquisition step, and a display control step. The traffic signal information acquisition step acquires traffic signal information in the traveling direction of the vehicle. The map information acquisition step acquires map information including the traveling direction of the vehicle. In the display control step, based on the traffic light information, the state of the traffic light existing in the running direction of the vehicle is displayed on the road in the running direction of the vehicle from the traffic light in the map information. According to this map display control program, it is easy for the user to grasp the position and the state of the traffic light, and the recognition of the state of the traffic light can be enhanced.

In Embodiments 1 to 3 described above, when the traffic light prohibits straight forward travel and left turns, and permits right turns, on the map displayed on the display unit 14, the straight ahead road and the left turn ahead road are indicated in red. Then, the left turn road should be displayed in blue. As in this case, the map display control device 20 can display the status of the traffic lights on the map displayed on the display unit 14 in response to various restriction states based on the status of the traffic lights.

The above has been described based on the embodiments of the present invention. Those skilled in the art will appreciate that these embodiments are illustrative and that various variations and modifications are possible within the scope of the claims of the present invention, and that such variations and modifications also fall within the scope of the claims of the present invention. It is about to be done. Accordingly, the description and drawings herein are to be regarded in an illustrative rather than a restrictive sense.

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 (5)

a traffic light information acquisition unit that acquires traffic light information in the running direction of the vehicle;
a map information acquisition unit that acquires map information including the traveling direction of the vehicle;
a display control unit for displaying, based on the traffic light information, the state of the traffic light present in the running direction of the vehicle on a road in the running direction of the vehicle restricted by the traffic light on the map displayed on the display unit;
with
the traffic light information includes a current light color state of the traffic light;
The display control unit extracts a road in the traveling direction of the vehicle that is regulated by the traffic light based on route information of the vehicle according to the presence or absence of a set route, and extracts the extracted road in the traveling direction of the vehicle. Superimposed display based on the current light color of the nearest existing traffic light ,
The map display control device, wherein the area of the road to be superimposed and displayed is the restricted road ahead of the intersection where the traffic light is present . The traffic light information includes time information until the light color of the traffic light changes,
2. The display control unit changes the display of the state of the traffic light in accordance with the time information, and displays so as to converge on the side of the traffic light and disappear when the light color changes. The map display control device according to . 3. The map display control device according to claim 1, wherein the display control unit displays the states of a plurality of traffic lights existing on the route based on the route information of the vehicle. a traffic light information acquisition step of acquiring traffic light information in the running direction of the vehicle;
a map information acquiring step of acquiring map information including the traveling direction of the vehicle;
a display control step of displaying, based on the traffic light information, the state of the traffic light existing in the running direction of the vehicle on a road in the running direction of the vehicle restricted by the traffic light on a map displayed on a display unit;
with
the traffic light information includes a current light color state of the traffic light;
The display control step includes a step of extracting a road in the direction of travel of the vehicle that is regulated by the traffic light based on route information of the vehicle according to the presence or absence of a set route; Superimposed display based on the current light color of the nearest traffic light existing in the direction ,
A map display control method , wherein the area of the road to be superimposed and displayed is a restricted road ahead of an intersection where the traffic light is present. a traffic light information acquisition step of acquiring traffic light information in the running direction of the vehicle;
a map information acquiring step of acquiring map information including the traveling direction of the vehicle;
a display control step of displaying, based on the traffic light information, the state of the traffic light existing in the running direction of the vehicle on a road in the running direction of the vehicle restricted by the traffic light on a map displayed on a display unit;
the traffic light information includes a current light color state of the traffic light;
The display control step includes a step of extracting a road in the direction of travel of the vehicle that is regulated by the traffic light based on route information of the vehicle according to the presence or absence of a set route; Superimposed display based on the current light color of the nearest traffic light existing in the direction ,
The area of the road to be superimposed is targeted to the restricted road ahead of the intersection where the traffic light is located,
A map display control program to be executed by a computer.

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