JP3675350B2 - Navigation system and car navigation device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention obtains a plurality of routes from the departure point to the final arrival point with different waypoints, and moves each route from the departure point to the next waypoint by a vehicle. The present invention relates to a navigation system and a car navigation apparatus that present a route of a vehicle movement section of the vehicle and that allows a user to select a desired route from the route.
[0002]
[Problems to be solved by the invention]
When a mobile phone is connected to a route guidance server via a communication network, there is a service in which a route from a departure location to a final arrival location is indicated by a transit location and distributed to the mobile phone. For example, you can drive from the departure point to the parking lot near the train station, park the vehicle in the parking lot, go to the station near the arrival point by train, and then walk to the final arrival point. Presented. At this time, approximate time required, train fare, and the like are also transmitted to the mobile phone as additional information.
[0003]
By the way, although the above route guidance usually presents only one route, it is rare that there is only one route connecting two points. For this reason, a service that presents a plurality of routes from the departure point to the arrival point with different transit points is being considered. In this case, it is possible to receive a plurality of routes by designating the means of transportation from the departure point to the next waypoint as a private vehicle. In this case, the route of the vehicle movement section of the presented plurality of routes Can be searched with a car navigation device, a desired route can be selected from the routes of a plurality of vehicle movement sections, and travel guidance can be provided.
[0004]
However, in the conventional car navigation device, it is possible to set one departure point and one destination and search for a route from the departure point to the destination. It is not possible to search for a plurality of routes from the starting point to each destination by setting. For this reason, even if the route guidance server provides a service that presents a plurality of routes from the departure point to the arrival point with different transit points, the car navigation device presents the routes of the plurality of vehicle movement sections. I can't.
[0005]
The present invention has been made in view of the above circumstances, and its first object is to present a plurality of routes from the departure place to the final arrival place, and for each of the routes, a section from the departure place to the next waypoint is provided. In the case of traveling by a vehicle, there is provided a navigation system capable of searching for a route of the plurality of vehicle movement sections, selecting a desired route from the route, and causing the travel guidance to be provided. An object of the present invention is to provide a car navigation device capable of searching a plurality of routes from one departure point to a plurality of different destinations.
[0006]
[Means for Solving the Problems]
According to the navigation system of claim 1, the mobile terminal is connected to the route distribution means, and from the route distribution means, as a section moving by vehicle between the departure place and the next waypoint, from the departure place to the arrival place Get multiple routes for different routes. And about the some route | root which the portable terminal acquired, the area (the next waypoint from the departure place) which moves with a vehicle is transferred from a portable terminal to a car navigation apparatus. The car navigation device searches for a route from a departure point to each end point of a plurality of vehicle movement sections. Then, when any of the plurality of presented routes is selected, the car navigation device guides the traveling of the vehicle according to the selected route. When the vehicle arrives at the end point of the travel section of the vehicle, guidance from there to the destination is made by the route distributed to the mobile terminal.
[0007]
According to the navigation system of the second aspect, when the vehicle travels are guided according to the selected route, and a traffic obstacle such as a traffic jam occurs on the route being guided, the car navigation device Among the routes, the route from the current location to the end location of the route other than the currently guided route among the routes of the plurality of vehicle movement sections is searched and the change of the destination location (destination) is proposed. Therefore, if a route to the changed end point is selected, the vehicle can be guided to a new end point that avoids the traffic obstacle point.
According to the navigation system of claim 3, since the car navigation device displays the charge of the parking lot at the end point of the vehicle movement section and the safety against theft, the user can use the route with the parking lot that suits his / her wish. Can be selected.
[0008]
According to the car navigation device of the fourth aspect , the communication means communicates with the portable terminal, and receives at least the transfer of the starting point and the ending point of the vehicle movement section for the plurality of route information acquired by the portable terminal. Then, since the route search means searches for the routes of the plurality of vehicle movement sections acquired by the communication means, when one of the plurality of routes is selected, the vehicle travels according to the selected route. .
[0009]
According to the car navigation device of claim 5, when the presence of a traffic obstacle area such as a traffic jam area or a traffic restriction area is detected from the road traffic information, the traffic obstacle area is after the current location of the route being guided. The route search means searches for a route from the current location to an end point of a route other than the route currently being guided among the routes of the plurality of vehicle movement sections, and proposes a change of the end point. Therefore, if an operation for accepting a proposal for changing the end point is performed, travel guidance is performed toward a new end point along a route avoiding the traffic obstacle.
According to the car navigation device of the sixth aspect, since the charge of the parking lot at the end point of the vehicle movement section and the safety against theft are displayed on the display means, the user can use the route with the parking lot that suits his / her wish. Can be selected.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
First, FIG. 5 shows a configuration of a route guidance information distribution system. In this route guidance information distribution system, a mobile phone 1 as a mobile terminal includes a control circuit 2 as a control means, and a telephone communication unit 3 as a telephone communication means that performs processing related to telephone communication in the control circuit 2, a microphone The voice processing unit 6 performs processing (encoding processing, decoding processing, etc.) of the transmission voice input by 4 and the reception voice output by the speaker 5, a “call start” key switch for starting the call, and the call termination. Key switch group 7 consisting of a number of key switches such as a "call end" key switch or a "numeric" key switch for inputting a telephone number, and a liquid crystal display as a display means for displaying a caller telephone number 8 and a memory 9 for storing memory dial information and the like are connected. In the case of the present embodiment, a Bluetooth communication unit 11 is connected as a communication means for communicating with the car navigation device 10 shown in FIG. The control circuit 2 is constituted by a microcomputer system and includes a CPU, a ROM, a RAM, and an I / O.
[0011]
The mobile phone 1 can be connected to a route distribution server 13 as route distribution means via a communication network 12. When route request information is transmitted from the mobile phone 1 to the route distribution server 13, the route distribution server 13 is configured to set a route according to the route request information and send it back to the mobile phone 1. The route information returned to the mobile phone 1 is temporarily stored in the RAM or the memory 9 as the storage means of the control circuit 2.
[0012]
On the other hand, the car navigation apparatus 10 shown in FIG. 4 includes a control circuit 14 as a control means. The control circuit 14 includes a position detector 15 as a position detection means, a map data storage device 16 as a map data storage means, Operation switch group 17, liquid crystal display 18 as a display means for displaying a map, voice generating device 19 for performing driving guidance by voice, VICS receiving circuit 20 as a road traffic information receiving means, remote control sensor 20, mobile phone Bluetooth communication unit 21 as a communication means for communicating with 1 is connected.
[0013]
The control circuit 14 controls the overall operation of the car navigation apparatus 10 and is composed of a microcomputer system. That is, the control circuit 14 includes a CPU, a ROM, a RAM, and an I / O. Among these, an execution program for operating the car navigation device 10 is stored in the ROM, and a program is stored in the RAM as a storage unit. Temporary data at the time of execution, map data acquired from the map data storage device 16, and the like are temporarily stored.
[0014]
The position detector 15 includes a geomagnetic sensor 22, a gyroscope 23, a distance sensor 24, and a GPS (Global Positioning System) receiver 25. Since these sensors 22 to 25 have detection errors of different properties, combining these sensors 22 to 25 enables position detection with high accuracy while correcting the detection errors. It should be noted that depending on the required detection accuracy level, it is not necessary to provide all the sensors 22 to 25, and it may be configured to be appropriately selected and provided. Furthermore, the position detector 15 may be configured by combining a steering rotation sensor, a wheel sensor for detecting rotation of each tire, and the like.
[0015]
The map data storage device 16 is composed of, for example, an information recording medium such as a DVD-ROM and a reading device that reads map data from this information recording medium. It stores data for guidance, search data for searching locations on the map from place names, and data on parking lots (charges, presence of roofs, safety level, etc.) that exist in various places.
[0016]
The liquid crystal display 18 displays map data and characters on the display screen. The operation switch group 17 is used for inputting data or inputting setting items. For example, various operation switches such as a touch switch or a mechanical switch provided integrally with the liquid crystal display 18 are used. Consists of.
[0017]
The VICS receiving circuit 20 receives road traffic information transmitted from the VICS that is an external information source and inputs it to the control circuit 14 serving as a detecting means. Based on the road traffic information input from the VICS receiving circuit 20, the control circuit 14 detects a traffic obstacle point such as a traffic restriction point and a traffic jam point, the length of the traffic jam, and the like.
[0018]
The Bluetooth communication unit 21 is a master in relation to the Bluetooth communication unit 11 of the mobile phone 1, and when the car navigation device 10 is turned on by operating the engine key of the vehicle, the data link request signal is sent to the mobile phone. 1 is configured to be transmitted. When the mobile phone 1 is turned on, the Bluetooth communication unit 11 receives the data link request signal and returns a data link response signal to the Bluetooth communication unit 21 of the car navigation device 10. As a result, a Bluetooth link is established between the mobile phone 1 and the car navigation device 10, and the Bluetooth link is set to an active state. When a predetermined key operation is performed on the mobile phone 1 in this active state, route information acquired from the route distribution server 13 is transmitted from the mobile phone 1 to the car navigation device 10.
[0019]
The control circuit 14 has a function as display control means, calculates the current position of the vehicle based on information input from the position detector 15, and displays the current position superimposed on the map based on the map data. The control circuit 14 also has a function of searching for a route to the destination (route search means), and a travel guidance function for instructing the traveling direction of the vehicle by generating a sound from the sound generator 19 according to the searched route ( Guide means). That is, when a destination or passing point is input by operating the operation switch group 17 or the remote control 26, an optimum route from the departure point (in many cases, the current position) to the destination is automatically searched as a destination route. The destination route is highlighted on the map on the display screen of the liquid crystal display 18. Then, the control circuit 14 guides the traveling direction of the vehicle by voice according to the destination route.
[0020]
When the VICS receiving circuit 20 receives information about a traffic trouble point such as a traffic jam point, a traffic regulation point, a traffic jam cause, or a traffic jam length during the guidance operation according to the destination route, the control circuit 14 Information is notified by voice, or a traffic obstacle point is displayed on a road map on the display screen of the liquid crystal display 20.
[0021]
Next, the operation of the above configuration will be described with reference to the flowchart of FIG. 1 and the sequence of FIG.
For example, the user of the mobile phone 1 operates the key switch group 7 to connect to the route distribution server 13 in order to know the route from the home to the desired place. Then, as shown in FIG. 2, route request information such as using the vehicle from the mobile phone 1 to the route distribution server 13 such as the home location as the departure location, the final arrival location, and the route from the departure location to the middle is transmitted. Then, the route distribution server 13 sets a plurality of routes according to the route request information. In this case, the route is indicated by a transit point from the departure point to the final destination and a moving means (vehicle, train, walking, etc.) between the points. Further, the route distribution server 13 indicates the end point in a parking lot when traveling by vehicle, and if the transportation means is a public transportation such as a train or bus, the fare and required time, and the transportation means is on foot. If it is, additional information such as the distance of the walking section and the required time is created. Then, the route distribution server 13 returns the set information of the plurality of routes (route information) to the mobile phone 1 together with the additional information. The returned information is stored in the memory 9 of the mobile phone 1.
[0022]
Here, the route stored in the memory 9 of the mobile phone 1 will be described with reference to FIG. First, route 1 goes from departure place (home) A to the next stop, parking lot C, by vehicle, and from there to the final destination B on foot. Route 2 is that the vehicle goes from the departure point A to a parking lot D, which is the next transit point, and then goes to the final destination B on foot from there. Route 3 is a vehicle from the departure point A to the next stop, the train station parking lot E, where you get on the train, get off at F station, and walk from F station to the final destination. is there.
[0023]
Now, take the mobile phone 1 and get on the vehicle at home and turn on the engine key. Then, the car navigation device 10 is turned on, and its Bluetooth communication unit 21 sends out a data link request signal. Then, the Bluetooth communication unit 11 of the mobile phone 1 receives the data link request signal and returns a data link response signal to the Bluetooth communication unit 21 of the car navigation device 10. As a result, a Bluetooth link is established between the mobile phone 1 and the car navigation device 10, and the Bluetooth link is set to an active state.
[0024]
When a predetermined key operation is performed on the mobile phone 1 while the Bluetooth link is active, route information and additional information stored in the memory 9 are transmitted to the car navigation device 10 (step S1 in FIG. 1). Then, the control circuit 14 of the car navigation apparatus 10 searches the route from the departure point A to the next parking lots C, D, and E for each of the routes 1 to 3, and the distance between these routes. In addition to calculating the required time, the parking data such as the charge per hour for each of the parking lots C, D and E, the presence or absence of the roof, the safety level against theft, etc. are read from the map data storage device 16 (step S2). The required time can be obtained by dividing the distance of each route by a preset vehicle speed.
[0025]
Next, the control circuit 14 determines, for each of the routes 1 to 3 on the liquid crystal display 18, the route of the section traveled by the vehicle, its distance and required time, the charges for the parking lots C, D, E, and the safety level. Parking information, time required from parking lots C, D, E to final destination B, if using transportation such as a train, the fare and required time, distance and time required for walking section, etc. are displayed (step) S3). This makes it possible to know the route that can be reached in the shortest time, which route has the most expensive parking lot, which route has a high degree of safety with a low risk of theft, and which route has the shortest walking distance. It becomes like this.
[0026]
Therefore, the user selects a route that suits his / her wishes. For example, if there is a desire to go as close as possible to the arrival place B and leave the vehicle in a safe parking lot even if the fare is high, a route that matches that is selected. Here, it is assumed that the user selects a route 1 by operating any one of the switches in the operation switch group 17 as selection means. Then, the control circuit 14 displays on the liquid crystal display 18 a route from the departure point A, which is the vehicle movement section of the selected route 1, to the parking lot C, which is the end point of the vehicle movement section, and according to the route, The travel direction is guided ("YES" in step S4, step S5).
[0027]
During this route guidance, the VICS receiving circuit 20 receives road traffic information, and when it receives traffic fault information such as congestion, it informs the contents by the voice generator 19 or the like. On the other hand, during the route guidance, the control circuit 14 detects traffic trouble such as traffic jam from the current position to the destination, here the end point of the vehicle moving section (after the current position) according to the traffic trouble information received by the VICS receiving circuit 20. Whether or not it has occurred is monitored (step S6). If no traffic obstacle has occurred ("NO" in step S6), the process proceeds to the next step S7 to determine whether or not the destination has been reached. To do. If the destination has not been reached, the control circuit 14 determines “NO” in step S7, returns to step S5, and continues route guidance with the parking lot C as the destination (steps S5 and S6 indicate “ NO ”,“ NO ”is repeatedly executed in step S7).
[0028]
When the VICS receiving circuit 20 receives that a traffic fault has occurred after the current location of the route being guided, the control circuit 14 determines “YES” in step S6 and proceeds to step S8, where there is another destination. Search whether or not to do. Here, since the parking lots D and E, which are end points between other vehicle movements, exist as other destinations, the control circuit 14 becomes “YES” in step S8, and the current location in the next step S9. To the parking lots D and E, and the distance and the required time are calculated. And for the two routes from the current location through the parking lots D and E to the final arrival location B, the required time from the current location to the parking lot, the required time from the current location to the final arrival location, the parking fee and safety, The fare, the distance and time of the walking section, etc. are displayed on the liquid crystal display device 18 (step S10). If no other destination exists, the control circuit 14 determines “NO” in step S8 and continues the route guidance with the parking lot C as the destination.
[0029]
When the user operates one of the switches in the operation switch group 17 as the selection means to select a desired route from the two newly proposed routes, the control circuit 14 sets “YES” in step S11. Then, the process proceeds to the original step S5, where the traveling direction of the vehicle is guided according to the newly selected route, and thereafter the operation as described above is executed. When a new route is not selected, the control circuit 14 becomes “NO” in step S11 and guides the traveling direction of the vehicle according to the route to the parking lot C as it is. When the vehicle arrives at the destination, the control circuit 14 determines “YES” in step S7, transmits the arrived destination to the mobile phone 1 (step S12), and ends. After that, the user deposits the vehicle in the parking lot and goes to the final destination by the route information stored in the mobile phone 1.
[0030]
Thus, according to the present embodiment, when a plurality of routes obtained by the mobile phone 1 are transmitted to the car navigation device 10, the car navigation device 10 determines the end point of the section in which the vehicle moves halfway for each of the plurality of routes. Automatically search for the destination route. For this reason, the route of the section which moves with vehicles can be compared mutually about a plurality of routes, and the thing of a desired route can be selected. In addition, if the selected route (destination) has a traffic problem on the way, you can change to another destination to avoid the traffic problem and avoid getting caught in traffic. Can do.
[0031]
The present invention is not limited to the embodiments described above and shown in the drawings, and can be expanded or changed as follows.
The parking lot information such as the parking fee per hour and the safety against theft may be transferred from the route guidance server 13 to the car navigation device 10 via the mobile phone 1.
The mobile terminal is not limited to a mobile phone, but may be a PDA (Personal Digital Assistants), or may be a personal computer with a built-in mobile phone.
The information transferred from the mobile phone 1 to the car navigation device 10 may be only the starting point and the ending point of the vehicle section for a plurality of routes. The selection of the route may be determined by the route displayed on the map of the liquid crystal display 18 or by referring to the displayed route and the route information or additional information stored in the mobile phone 1. .
May be a car navigation system with a built-in mobile phone.
[Brief description of the drawings]
FIG. 1 is a flowchart of control contents of a car navigation device according to an embodiment of the present invention. FIG. 2 is a communication sequence between a mobile phone and a route distribution server. Fig. 4 is a conceptual diagram of information. Fig. 4 is a block diagram of a car navigation device. Fig. 5 is a block diagram of a mobile phone shown together with a route guidance information distribution system.
In the figure, 1 is a mobile phone (mobile terminal), 10 is a car navigation device, 14 is a control circuit (control means, route search means, guidance means, detection means), 11 is a Bluetooth communication unit, and 13 is a route distribution server (route). (Distribution means), 16 is a map data storage means, 17 is an operation switch group (selection means), 18 is a liquid crystal display (display means), 20 is a VICS receiver (road traffic information receiving means), and 21 is a Bluetooth communication unit ( Communication means).

Claims (6)

A route distribution means for indicating the route from the departure point to the final arrival point by way of a distribution point and distributing via a communication network;
From this route distribution means, a mobile terminal that acquires a plurality of routes with the same starting point and final destination and different route points as a vehicle moving section that moves between the starting point and the next way point,
A vehicle that is mounted on a vehicle and that receives at least the transfer of the start and end points of the vehicle movement section over the plurality of routes acquired by the mobile terminal from the mobile terminal directly by radio , and searches for routes of the plurality of vehicle movement sections A navigation device,
The car navigation device, when any one of the searched routes of the plurality of vehicle movement sections is selected, guides the vehicle traveling according to the selected route. When the car navigation device acquires road traffic information and detects that there is a traffic obstacle after the current location of the route being guided, the car navigation device, except for the route being guided among the routes of the plurality of vehicle movement sections, from the current location The navigation system according to claim 1, wherein a change to the end point is proposed by searching for a route to the end point of the route. The car navigation device receives charges and thefts of parking lots existing at the end points of the plurality of vehicle movement sections when receiving the transfer of at least the start point and the end point of the vehicle movement sections for the plurality of routes from the portable terminal. The navigation system according to claim 1 or 2, wherein the safety level is acquired and displayed . In the car navigation apparatus used for the navigation system according to claim 1,
A communication means that communicates with a mobile terminal and directly transfers at least the start point and the end point of the vehicle movement section with respect to a plurality of routes acquired by the mobile terminal;
Route search means for searching for routes of the plurality of vehicle movement sections acquired by the communication means;
Selecting means for selecting any one of the plurality of routes searched by the route searching means; and guidance means for guiding the traveling of the vehicle according to the route selected by the selecting means. car navigation device made. Road traffic information receiving means for receiving road traffic information;
Detecting means for detecting a traffic obstacle area such as a traffic jam area or a traffic regulation area based on the road traffic information received by the road traffic information receiving means;
The route setting means, when the traffic fault location detected by the detection means exists after the current location of the route being guided, from the current location to a route other than the route being guided among the routes of the plurality of vehicle movement sections. 5. The car navigation apparatus according to claim 4, wherein a route to the end point is searched and a change of the end point is proposed. It has a map data storage means that stores the charge of parking lots existing in various places, the degree of safety against theft,
When the mobile terminal receives at least the start point and the end point of the vehicle movement section for the plurality of routes, the map shows the charge of the parking lot existing at the end point of the plurality of vehicle movement sections and the security against theft. 6. The car navigation apparatus according to claim 4, wherein the car navigation apparatus is obtained from the data storage means and displayed on the display means.

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