JP3948401B2 - Navigation system and navigation device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a navigation system and a navigation apparatus.
[0002]
[Prior art]
Conventionally, in a navigation device, for example, a current position of a vehicle, that is, a current position, is detected by GPS (Global Positioning System), and a rotation angular velocity of a vehicle detected by a gyro sensor, that is, based on a turning angle, The direction of the vehicle, that is, the vehicle direction is detected, map data is read from the data recording unit, a map screen is formed on the display of the display unit, and the current location, a map around the current location, and the vehicle are displayed on the map screen. The direction is displayed. Therefore, the driver who is an operator can drive the vehicle according to the current location displayed on the map screen, the map around the current location, and the direction of the vehicle.
[0003]
When the driver sets a destination and sets search conditions, a route from the current location to the destination is searched based on the search conditions. The searched route, that is, the searched route is displayed on the searched route display screen formed on the display as an image, or is output by voice by a message from the voice output unit, and is guided to the driver. Is done. Therefore, the driver can drive the vehicle according to the guided search route.
[0004]
The navigation device may include a communication unit, receive traffic information through the communication unit, and display the received traffic information together with the map screen. Furthermore, based on the received traffic information, it is determined whether there is traffic on the route from the searched current location to the destination, and if there is traffic, the traffic information is superimposed on the route and displayed. (For example, refer to Patent Document 1).
[0005]
[Patent Document 1]
See JP 2000-231328 A
[0006]
[Problems to be solved by the invention]
However, in the conventional navigation device, when trying to recognize traffic information at a point not on the map screen formed on the display or traffic jam information at a point not on the searched route, the map screen is scrolled, Since it is necessary to search for points, it is not only troublesome, but also the time required to recognize traffic information is lengthened.
[0007]
The present invention solves the problems of the conventional navigation device, can simplify the work for recognizing traffic information, and can shorten the time required to recognize the traffic information. An object is to provide a system and a navigation device.
[0008]
[Means for Solving the Problems]
Therefore, in the navigation system of the present invention, based on information acquisition processing means for acquiring traffic information, registered roads or registration points registered in advance, and traffic information acquired by the information acquisition processing means, the acquisition is performed. Information determination processing means for determining whether the obtained traffic information is traffic information corresponding to a registered road or a registration point, and when the acquired traffic information is traffic information corresponding to a registration road or a registration point, Only registered roads or registered points with traffic information among registered roads or registered points are displayed in a list, and when a desired registered road or registered point is selected from the displayed list, the registered roads or registered points are included. Information display processing means for displaying a map together with traffic information.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
[0018]
FIG. 1 is a block diagram showing the main part of the navigation system in the first embodiment of the present invention, and FIG. 2 shows the data structure of traffic information in the first embodiment of the present invention.
[0019]
In the figure, reference numeral 14 denotes a navigation device. The navigation device 14 includes a current location detection processing unit 15 that detects a current location, an information recording unit that records navigation information such as map data, road data, and search data, and a recording medium. The data recording unit 16 functions as a computer based on various programs, data, and the like. The navigation processing unit 17 performs various arithmetic processes such as navigation processing based on the input information, the operation unit, and the first input. An input unit 34 as a device, a display means 35 and a display unit 35 as a first output device, an audio input unit 36 as a second input device, an audio output unit 37 as a second output device, and a third input And a communication unit 38 as a third output device, and a vehicle speed sensor 41 is connected to the navigation processing unit 17. That.
[0020]
The current location detection processing unit 15 includes a GPS 21 as a current location detection unit, a geomagnetic sensor 22, a distance sensor 23, a steering sensor 24, a beacon sensor 25, a gyro sensor 26 as an orientation detection unit, an altimeter (not shown), and the like.
[0021]
The GPS 21 detects the present location on the earth by receiving radio waves generated by artificial satellites, the geomagnetic sensor 22 detects the vehicle direction by measuring geomagnetism, and the distance sensor 23 A distance between predetermined positions on the road is detected. Examples of the distance sensor 23 include a sensor that measures the rotational speed of a wheel (not shown) and detects a distance based on the rotational speed, a sensor that measures acceleration, integrates the acceleration twice, and detects a distance. Can be used.
[0022]
The steering sensor 24 detects a rudder angle, and the steering sensor 24 is attached to, for example, an optical rotation sensor, a rotation resistance sensor, or a wheel attached to a rotating portion of a steering wheel (not shown). An angle sensor or the like is used.
[0023]
The beacon sensor 25 receives position information from radio wave beacons, optical beacons and the like arranged along the road to detect the current location. The gyro sensor 26 detects a turning angle. As the gyro sensor 26, for example, a gas rate gyro, a vibration gyro, or the like is used. Then, by integrating the turning angle detected by the gyro sensor 26, the vehicle direction can be detected.
[0024]
The GPS 21 and the beacon sensor 25 can detect the current location independently. The current position can also be detected by combining the distance detected by the distance sensor 23 with the vehicle direction detected by the geomagnetic sensor 22 or the turning angle detected by the gyro sensor 26. Further, the current location can be detected by combining the distance detected by the distance sensor 23 and the steering angle detected by the steering sensor 24.
[0025]
The data recording unit 16 includes, as navigation information, a database including data files such as a map data file, an intersection data file, a node data file, a road data file, a photo data file, a search data file, and a facility information data file. In the information data file, facility information of facilities such as hotels, gas stations, parking lots, and sightseeing spots in each region is recorded as facility information data. In each data file, a guide map is output along the searched route on a screen formed on a display (not shown) of the display unit 35, that is, a characteristic photograph or frame at an intersection or route is displayed. Various data for displaying a figure or the like, displaying a distance to the next intersection, a traveling direction at the next intersection, or other guidance information is recorded. The data recording unit 16 also records various data for outputting predetermined information by the audio output unit 37.
[0026]
By the way, the intersection data file includes intersection data relating to each intersection, the node data file includes node data relating to node points, the road data file includes road data relating to roads, and the search data file includes a search for searching for a route. Data is recorded, and road condition data representing road conditions is constituted by the intersection data, node data, road data, search data, and the like. The node data includes data indicating actual road branch points (including intersections, T-junctions, etc.), node points, and inter-node point links that connect the node points.
[0027]
And, according to the road data, the width of the road itself, the slope (gradient), the cant, the bank, the road surface state, the number of lanes of the road, the location where the number of lanes decreases, the location where the width becomes narrow, etc. Radius of curvature, intersection, T-junction, corner entrance, etc., road attributes, downhill roads, uphill roads, etc., road types, general roads such as national roads, prefectural roads, narrow streets, highways, urban highways Expresses highways and toll roads such as toll roads. Further, the road data represents a railroad crossing, a highway entrance and exit road (rampway), a highway / toll road tollgate, and the like.
[0028]
The navigation processing unit 17 includes a CPU 31 as an arithmetic device that controls the entire navigation device 14, a RAM 32 used as a working memory when the CPU 31 performs various arithmetic processes, and a control program. It comprises a ROM 33 as a recording medium on which various programs for searching for a route to the destination, route guidance, determination of a specific section, etc. are recorded, and the navigation processing unit 17 includes the input unit 34 and a display unit. 35, an audio input unit 36, an audio output unit 37, and a communication unit 38 are connected. The CPU 31 includes an MPU.
[0029]
The data recording unit 16 and the ROM 33 are configured by a magnetic core, a semiconductor memory, etc. (not shown). In addition, as the data recording unit 16 and the ROM 33, various recording media such as a magnetic disk such as a magnetic tape and a hard disk, a flexible disk, a magnetic drum, a CD, an MD, a DVD, an optical disk, an MO, an IC card, and an optical card are used. You can also.
[0030]
In the present embodiment, various programs are recorded in the ROM 33 and various data are recorded in the data recording unit 16, but the programs, data, and the like are recorded on the same external recording medium. You can also. In this case, for example, a flash memory (not shown) may be provided in the navigation processing unit 17, and the program, data, and the like may be read from the external recording medium and written to the flash memory. Therefore, the program, data, etc. can be updated by exchanging an external recording medium. In addition, a program for controlling an automatic transmission control device (not shown) can be recorded on the external recording medium. As described above, it is possible to start programs recorded in various recording media and perform various processes based on the data.
[0031]
Further, via the communication unit 38, for example, traffic information including information such as traffic jam information, regulation information, parking lot information, traffic accident information, etc., and a base such as D-GPS information for detecting a detection error of the GPS 21 Various data transmitted from a station can be received, or position information can be received from a radio beacon device, an optical beacon device, or the like disposed along a road via a radio beacon, an optical beacon, or the like.
[0032]
The input unit 34 is used to correct the current location at the start of traveling or to input a starting point and a destination. Various keys displayed as images on a screen formed on the display. It consists of operation switches such as an operation menu. Therefore, an input can be performed by touching (pressing down) the operation switch. As the input unit 34, a keyboard, mouse, bar code reader, light pen, remote control device for remote control, etc., which are arranged separately from the display unit 35, can be used.
[0033]
On various screens formed on the display, operation guidance, operation menus, operation key guidance, a search route from the current location to the destination, guidance information along the search route, and the like are displayed as images. As the display unit 35, a display such as a CRT display, a liquid crystal display, or a plasma display can be used, or a hologram device that projects a hologram on a windshield of a vehicle can be used.
[0034]
The voice input unit 36 includes a microphone (not shown) and the like, and can input necessary information by voice. Furthermore, the voice output unit 37 includes a voice synthesizer and a speaker (not shown), and the search route, guidance information, shift information, and the like are output from the voice output unit 37, for example, as voice synthesized by the voice synthesizer. . In addition to the voice synthesized by the voice synthesizer, various sounds, various guidance information recorded in advance on a tape, a memory, and the like can be output.
[0035]
Next, the operation of the navigation device 14 configured as described above will be described.
[0036]
First, when the input unit 34 is operated by a driver who is an operator and the navigation device 14 is activated, a navigation initialization processing unit (not shown) of the CPU 31 performs a navigation initialization process. Subsequently, the CPU 31 reads the current location detected by the GPS 21 and the vehicle direction detected by the gyro sensor 26, and a navigation information acquisition processing unit (not shown) of the CPU 31 performs a navigation information acquisition process. From the map data file, road data file, search data file, etc., navigation information such as map data, road data, search data is read out and acquired. In the present embodiment, the navigation information acquisition processing means reads and acquires navigation information from the data recording unit 16, but can also receive and acquire the navigation information via the communication unit 38.
[0037]
Next, notification processing means (not shown) of the CPU 31 performs notification processing and notifies the driver of various information. Therefore, a map display processing unit (not shown) of the notification processing unit performs a map display process, forms a map screen on the display, displays a map around the current location on the map screen according to the map data, The current location and the vehicle direction are displayed.
[0038]
When the navigation device 14 is used as a route search device, when the driver operates the input unit 34 to input a destination, destination setting processing means (not shown) of the CPU 31 performs destination setting processing, Set the destination. A departure place can be set as required. The route search processing means (not shown) of the CPU 31 performs route search processing. Then, the route search processing means reads the current location, the destination, the search data, etc., and searches for a route from the departure point represented by the current location to the destination based on the search data.
[0039]
Subsequently, a search route guidance processing unit (not shown) of the CPU 31 performs a search route guidance process to guide the driver about the search route. For this purpose, the search route display processing means of the search route guidance processing means performs search route display processing, forms a search route display screen on the display, and displays the search route on the search route display screen. The voice output processing means of the search route guidance processing means performs voice output processing and outputs the search route from the voice output unit 37 by voice. Therefore, the driver can drive the vehicle according to the guided search route.
[0040]
By the way, the navigation apparatus can receive traffic information transmitted from an information transmission center, for example, a VICS (Vehicle Information and Communication System) center (not shown) via the communication unit 38. It is like that. Therefore, the received traffic information can be displayed together with the map screen.
[0041]
For this purpose, an information acquisition processing unit (not shown) of the CPU 31 performs information acquisition processing and acquires traffic information via the communication unit 38. In this case, the traffic information has a memory capacity of 16 bytes for each packet, information type data indicating the type of information, secondary mesh X and Y data for specifying a secondary mesh as a mesh, Identify the road link as a link (road) connecting between two points (intersections), link number data indicating whether the link is up / down, and the contents of the information provided corresponding to the link number data Link information to be represented, and deletion link auxiliary number data as auxiliary data, the information type data, secondary mesh X, Y data and link number data are fixed data, and the link information and deletion link auxiliary number data are It is switched to the latest one at a predetermined timing.
[0042]
For example, when the traffic information is traffic jam information, the link information has a data structure as shown in FIG. 2, and traffic jam head data indicating the distance Hb from the start point of the road link to the traffic jam head, It consists of speed data representing the degree by the average speed Vb in the traffic jam section, and traffic jam length data representing the traffic jam section by the distance Lb from the head of the traffic jam to the tail of the traffic jam.
[0043]
Next, an information display processing unit (not shown) of the notification processing unit performs an information display process, and each link information in the traffic information is classified into, for example, whether the road has a traffic jam, whether it is up or down, and the traffic jam. It is converted into a congestion arrow as a first traffic condition index representing a section, the congestion arrow is drawn, and the drawn congestion arrow is displayed along the road on the map screen.
[0044]
Therefore, the driver can know the traffic jam situation on the road on which the vehicle is to travel, that is, whether or not the traffic jam has occurred.
[0045]
By the way, the traffic information at the points around the current location is displayed on the map screen formed on the display, but the traffic information at the points not on the map screen formed on the display is previously stored in the points. By specifying and registering existing roads, traffic information can be displayed without scrolling the map screen.
[0046]
For this purpose, the road registration processing means (not shown) of the CPU 31 performs road registration processing, and registers a predetermined road as a registered road to be displayed for traffic information based on the operation of the input unit 34 by the driver.
[0047]
FIG. 3 is a flowchart showing the operation of the road registration process in the first embodiment of the present invention. FIG. 4 is a diagram showing a map screen before the road registration process is performed in the first embodiment of the present invention. 5 is a view showing a menu screen for road registration processing in the first embodiment of the present invention, and FIG. 6 is a view showing a registration instruction screen for road registration processing in the first embodiment of the present invention.
[0048]
In FIG. 4, L1 to L4 are roads, Vh is the current location, and k1 is a menu key. When the driver selects a menu screen by placing the cursor Cr on the menu key k1 and clicking or touching the menu key k1, as shown in FIG. 4, a menu (not shown) of the notification processing means is displayed. The display processing means performs menu display processing, forms a menu screen as shown in FIG. 5 on the display, and displays a menu for selecting processing desired by the driver on the menu screen. In this case, on the menu screen, as shown in FIG. 5, the road registration key k2 displayed as “Register traffic information display point” for selecting the road registration process, and the route search process are selected. For this purpose, a route search key k3 displayed as “Destination Search” is displayed. The vehicle direction is displayed in the direction of a mark representing the current location Vh.
[0049]
Then, when the driver selects the road registration processing by placing the cursor Cr on the road registration key k2 and clicking the road registration key k2, or by touching the road registration key k2, the road registration processing means displays the current location Vh. The designated road L1 is designated as a registered road candidate, and a registration instruction screen as shown in FIG. 6 is formed. The road L1 is a registered road on a predetermined portion of the road L1 on the registration instruction screen. A predetermined mark mk1 representing a candidate is displayed, and a registration key k4 is displayed at a predetermined location on the registration instruction screen.
[0050]
Subsequently, when the driver places the cursor Cr on the registration key k4 and clicks or touches the registration key k4 to instruct registration of the registered road candidates, the road registration processing means The registered road candidates are registered as registered roads for which traffic information is to be displayed. In this case, registration of registered road candidates is performed by recording link number data of registered roads in a registered road recording area set in the RAM 32 (FIG. 1).
[0051]
In this way, the driver can register an arbitrary number of arbitrary roads including the current location Vh as registered roads while the vehicle is running. In the present embodiment, the road L1 on which the current location Vh is displayed is designated. However, the cursor Cr is moved and clicked on an arbitrary point on an arbitrary road on the map screen. Alternatively, a road can be designated by touching an arbitrary point on an arbitrary road on the map screen. In addition, when a route is searched, a registered road can be registered by specifying an arbitrary passing point on the searched route.
[0052]
Next, a flowchart will be described.
Step S1: A road is designated.
Step S2: Register registered road candidates and end the process.
[0053]
By the way, in the road registration process, when a predetermined road is registered as a registered road for which traffic information is displayed, after that, when the driver is driving the vehicle, on the registered road, for example, traffic congestion occurs. When it occurs, the traffic information can be displayed on the predetermined map screen as traffic information representing the traffic situation.
[0054]
Next, processing for displaying traffic jam information will be described.
[0055]
In this case, when the information acquisition processing means acquires the traffic information, the information determination processing means (not shown) of the CPU 31 performs the information determination processing, and the registered road registered in advance as a target for displaying traffic jam information, and the information acquisition processing Based on the traffic information acquired by the means, it is determined whether the acquired traffic information is traffic information corresponding to the registered road, and if it is determined that the acquired traffic information is traffic information corresponding to the registered road, the information The display processing means displays traffic jam information for the registered road.
[0056]
FIG. 7 is a flowchart showing the operation of the information display process in the first embodiment of the present invention. FIG. 8 is a diagram showing the operation of the driver after the road registration process in the first embodiment of the present invention is performed. FIG. 9 is a diagram showing a message display screen of information display processing in the first embodiment of the present invention, and FIG. 10 is a traffic jam display processing in the first embodiment of the present invention. FIG. 11 is a first diagram showing a map screen of the information drawing process in the first embodiment of the present invention, and FIG. 12 is an information drawing in the first embodiment of the present invention. It is a 2nd figure which shows the map screen of a process.
[0057]
In this case, the information determination processing means reads the traffic information acquired in the information acquisition process, reads the link number data of the registered road from the registered road recording area, and based on each link information in the traffic information. Then, it is determined whether the traffic information is traffic information corresponding to the registered road.
[0058]
If the traffic information is not traffic information corresponding to the registered road, the information display processing means continuously forms a map screen as shown in FIG. A map around the current location Vh is displayed on the map screen, and the current location Vh and the vehicle direction are displayed. The direction of the vehicle is displayed in the direction of a mark representing the current location Vh.
[0059]
When the traffic information is traffic information corresponding to a registered road, the message display processing means of the information display processing means performs message display processing to form a message display screen as shown in FIG. In order to ask the driver whether or not to see the traffic situation, a message such as "There was a traffic jam on the registered road" or "Do you want to see the traffic situation?" An input key k11 displayed as “Yes” and an input key k12 displayed as “No” are displayed.
[0060]
When the driver places the cursor Cr on the input key k11 and clicks or touches the input key k11 to instruct the display of the traffic jam status, the traffic status display processing means of the information display processing means Performs traffic condition display processing, forms the traffic condition display screen shown in FIG. 10, displays a list of traffic conditions, and selects a registered road. For example, “1. A selection key k13 displayed as “Nearby”, a selection key k14 displayed as “23. Prefectural road 56 No. ** Near intersection”, and the like are displayed. Each selection key displays not only the name of the registered road where the traffic jam has occurred but also the name of the point such as an intersection or a place name where the traffic jam has occurred. In this embodiment, a list of traffic conditions is displayed for all registered roads where traffic congestion has occurred, but registration within a predetermined distance including the current location of the registered roads where traffic congestion has occurred. It is also possible to display a list of traffic conditions only for roads. In addition, when a route is being searched, it is possible to display a list of traffic conditions only for registered roads on the searched route.
[0061]
Subsequently, when the driver places the cursor Cr on the selection key k13 and clicks or touches the selection key k13 to select a predetermined registered road, the information drawing processing means of the information display processing means The information drawing process is performed to form a map screen including the registered road as shown in FIG. 11, and the link information about the selected registered road is read, and the link information is, for example, the road where the traffic jam occurs. The traffic congestion arrow a1 is converted into a traffic congestion arrow a1 as a second traffic condition index indicating the traffic congestion section, and the traffic congestion arrow a1 is drawn, and the traffic congestion arrow drawn along the road L5 on the map screen a1 is displayed.
[0062]
In FIG. 11, L5 to L8 are roads, fr2 is the name of the selected registered road, the intersection where the traffic jam occurs, the name of the name of the place name, etc., k15 is the previous point on the traffic jam status display screen Is a display instruction key for displaying the traffic situation of the next point, and k16 is a display instruction key for displaying the traffic situation of the next point on the traffic situation display screen.
[0063]
In addition, when the driver selects a predetermined registered road, for example, the road L13 by placing the cursor Cr on the selection key k14 and clicking on the traffic condition display screen, or touching the selection key k14, The information drawing processing means forms another map screen as shown in FIG. 12, reads the link information about the selected road L13, converts the link information into a congestion arrow a2, and the congestion arrow a2 And a traffic congestion arrow a2 drawn along the road L13 on the map screen is displayed.
[0064]
In FIG. 12, L11 to L14 are roads, fr3 is a name of a selected registered road, an intersection where a traffic jam occurs, names of points such as place names, and the like, and k15 and k16 are display instruction keys.
[0065]
In this way, when traffic jam occurs on a registered road, traffic information is displayed for the registered road, so when trying to recognize traffic information at a point not on the map screen formed on the display, the map screen is displayed. There is no need to scroll or find the point.
[0066]
Therefore, not only can the work for recognizing traffic information at a predetermined point be simplified, but also the time required to recognize the traffic information can be shortened.
[0067]
In the present embodiment, when the acquired traffic information is traffic information corresponding to the registered road, the traffic information is displayed. However, the acquired traffic information is traffic information corresponding to the registered road, for example, When the traffic information is within a predetermined range from the registered road, the traffic information can be displayed.
[0068]
Next, a flowchart will be described.
Step S11: It is determined whether the acquired traffic information is traffic information corresponding to the registered road. If the acquired traffic information is traffic information corresponding to the registered road, the process proceeds to step S12. If the acquired traffic information is not traffic information corresponding to the registered road, the process ends. Step S12: A list of traffic conditions is displayed.
Step S13: A registered road is selected.
Step S14: An information drawing process is performed and the process is terminated.
[0069]
By the way, when the vehicle is traveling along the searched route, if it is found that there is a traffic jam on the searched route, the vehicle may leave the searched route and try to drive the vehicle along a different road. is there. Therefore, when the vehicle deviates from the searched route, the road registration process is automatically performed without the driver clicking or touching the road registration key k2 (FIG. 5). The second embodiment will be described.
[0070]
FIG. 13 is a flowchart showing the operation of the navigation device according to the second embodiment of the present invention.
[0071]
First, when the driver inputs the destination by operating the operation unit and the input unit 34 (FIG. 1) as the first input device and inputs the search condition, the destination setting process (not shown) of the CPU 31 as the arithmetic unit is performed. The means performs destination setting processing to set the destination, and the search condition setting processing means (not shown) of the CPU 31 performs search condition setting processing to set the search conditions. A departure place can be set as required.
[0072]
Next, a route search processing unit (not shown) of the CPU 31 performs route search processing, reads the current location, destination, the search data, etc., and based on the search data, from the departure point represented by the current location to the destination. Search for a route.
[0073]
Subsequently, current location tracking processing means (not shown) of the CPU 31 performs current location tracking processing, and tracks the current location that changes as the vehicle travels. Next, a search route guidance processing unit (not shown) of the CPU 31 performs a search route guidance process to guide the driver about the search route. For this purpose, the search route display processing means of the search route guidance processing means performs search route display processing, forms a search route display screen on the display, and displays the search route on the search route display screen. The voice output processing means of the search route guidance processing means performs voice output processing, and outputs the search route by voice from the voice output unit 37 as the second output device. Therefore, the driver can drive the vehicle according to the guided search route.
[0074]
In this way, when the driver is driving the vehicle along the searched route, if it is found that there is a traffic jam on the searched route, the vehicle travels along a different road away from the searched route. There are times when it tries to make it. Therefore, a travel determination processing unit (not shown) of the CPU 31 performs a travel determination process, determines whether the vehicle has deviated from the search route based on the coordinates of the current location and the coordinates of the road link on the search route. When the road deviates from the route, the road registration processing means (not shown) of the CPU 31 performs road registration processing, and the road constituting the search route when the vehicle deviates from the search route, that is, a point that is out of the search route, that is, a search. The road is registered as a registered road to be displayed for traffic information corresponding to the departure point from the route.
[0075]
On the other hand, if the vehicle does not deviate from the searched route, the process ends when the vehicle reaches the destination.
[0076]
As described above, when the vehicle deviates from the searched route, the road registration process is automatically performed, so that it is not necessary to click or touch various keys to register the road. Therefore, the work at the time of registering a road as a registered road can be simplified.
[0077]
Next, a flowchart will be described.
Step S21: Search conditions are set.
Step S22: Route search processing is performed.
Step S23: The current location tracking process is performed.
Step S24: Search route guidance processing is performed.
Step S25: It is determined whether or not the searched route is deviated. If the search route is deviated, the process proceeds to step S26, and otherwise, the process proceeds to step S27.
Step S26 A road registration process is performed, and the process returns to Step S23.
Step S27: It is determined whether or not the destination has been reached. If the destination has been reached, the process ends. If not, the process returns to step S23.
[0078]
In another embodiment, the road registration processing means registers a road existing within a predetermined range from the departure point from the searched route, for example, within a radius of 500 [m], as a registered road.
[0079]
Further, when the vehicle deviates from the searched route, roads within a predetermined range from the departure point are registered, so that the traffic information display target can be widened.
[0080]
Next, when the vehicle deviates from the search route and then returns to the original search route, the road registration process is performed without the driver clicking or touching the road registration key k2 (FIG. 5). A third embodiment of the present invention that is automatically performed will be described.
[0081]
FIG. 14 is a flowchart showing the operation of the navigation device according to the third embodiment of the present invention.
[0082]
In this case, the travel determination processing means (not shown) of the CPU 31 (FIG. 1) as the arithmetic unit performs the travel determination processing, and based on the coordinates of the current location and the coordinates of the road link on the search route, has the vehicle deviated from the search route? If the vehicle deviates from the search route, the current location tracking processing means (not shown) of the CPU 31 performs current location tracking processing to track the current location that changes as the vehicle travels.
[0083]
In the meantime, the travel determination processing means determines whether or not the vehicle has returned to the search route based on the coordinates of the current location and the coordinates of the road link on the search route. Road registration processing means that is not performed performs road registration processing, and registers a road between the departure point on the searched route and a point that has returned to the searched route, that is, a return point, that is, a bypassed route, as a registered road. .
[0084]
On the other hand, if the vehicle does not deviate from the searched route, the process ends when the vehicle reaches the destination.
[0085]
As described above, when the vehicle departs from the searched route and returns to the searched route, road registration processing is automatically performed. Therefore, it is necessary to click or touch various keys to register the road. Disappear. Therefore, the work at the time of registering a road as a registered road can be simplified.
[0086]
Next, a flowchart will be described.
Step S31: Enter search conditions.
Step S32: Route search processing is performed.
Step S33 The current location tracking process is performed.
Step S34: Search route guidance processing is performed.
Step S35: It is determined whether or not the searched route is deviated. If the search route is deviated, the process proceeds to step S36, and if not deviated, the process proceeds to step S39.
Step S36 The current location tracking process is performed.
Step S37: It is determined whether or not the search route has been returned. When returning to the searched route, the process returns to step S38, and when not returning, the process returns to step S36.
Step S38: A road registration process is performed, and the process returns to step S33.
Step S39: It is determined whether or not the destination has been reached. If the destination has been reached, the process ends. If not, the process returns to step S33.
[0087]
In another embodiment, the road registration processing means is a road on which a vehicle has traveled after deviating from the searched route at the departure point and returning to the searched route at the return point, that is, a detour registered road. Register as
[0088]
By the way, when the departure point deviates from the searched route, a re-search processing unit (not shown) of the CPU 31 performs a re-search process and searches for the route again automatically or based on the operation of the driver. is there. Therefore, in still another embodiment, when the re-search process is performed, the road registration processing unit registers the re-searched route, that is, the re-search route as a registered road.
[0089]
In still another embodiment, the road registration processing unit registers the bypassed route and the bypass route as registered roads. In still another embodiment, the road registration processing unit registers the bypassed route and the re-search route as registered roads.
[0090]
In still another embodiment, the road registration processing means is a road that exists within a predetermined range from the bypassed route, for example, a length of a vertical line to the bypassed route within 500 [m]. Is registered as a registered road.
[0091]
In still another embodiment, the road registration processing means registers a road that exists within a predetermined range from the detour, for example, a length of a normal to the detour within 500 [m]. Register as a road.
[0092]
In still another embodiment, the road registration processing means is a road that exists within a predetermined range from the re-search route, for example, a vertical length to the re-search route within 500 [m]. Is registered as a registered road.
[0093]
In still another embodiment, the road registration processing means includes a road within a predetermined range from the bypassed route, a road within a predetermined range from the detour, and a road within a predetermined range from the re-search route. At least two of the roads are registered as registered roads.
[0094]
In still another embodiment, the road registration processing means is configured such that the operator places a cursor on an arbitrary point on the map screen and clicks or touches to designate a predetermined point. A road existing within a predetermined range from the designated point, for example, within a radius of 500 [m], is registered as a registered road.
[0095]
Next, a description will be given of a fourth embodiment of the present invention in which a database can be transmitted and received between the information base and the navigation device 14.
[0096]
FIG. 15 is a block diagram showing a navigation system according to the fourth embodiment of the present invention.
[0097]
In the figure, 14 is a navigation device, 50 is a navigation system, 51 is an information base, 52 is an information network connecting the information base 51 and the navigation device 14, and 53 is a server disposed in the information base 51, The server 53 can transmit and receive various programs, data, and the like between the information base 51 and the navigation device 14. For this purpose, the communication unit 38 (FIG. 1) as the third input device and the third output device of the navigation device 14 includes a transmission / reception device (not shown). The server 53 includes a CPU 54, a RAM 55, a ROM 56, a communication interface (not shown), and the like as an arithmetic device, and constitutes a computer. The navigation device 14 constitutes an in-vehicle terminal while being connected to the information network 52. The server 53 and the navigation processing unit 17 of the navigation device 14 can constitute a computer, and the computer can further include other arithmetic devices.
[0098]
When the information base 51 is an information center, a navigation server is provided as the server 53 in the information center, and the information center and the navigation device 14 are connected via a communication network as the information network 52. The When the information base 51 is a provider, an Internet server is provided as the server 53 to the provider, and the provider and the navigation device 14 are connected via the Internet network as the information network 52. When the information base 51 is a base station, a base station server as a server 53 is arranged in the base station, and the base station and the navigation device 14 are an FM multiplex broadcasting network, a telephone line as an information network 52. Connected via a network or the like.
[0099]
In the server 53, an information record for recording as a navigation information a database comprising a map data file, road data file, intersection data file, node data file, search data file, guidance data file, facility data file, facility information data file, etc. A recording device 57 as a unit is connected, and various data are recorded in the recording device 57.
[0100]
In the navigation device 14, when various programs, data, and the like are received by the communication unit 38, the CPU 31 as the arithmetic device of the navigation processing unit 17 downloads the program to, for example, a RAM 32, a flash memory, a hard disk, Is activated, and various processes are performed based on the data. That is, the CPU 31 downloads the database to a recording medium such as a RAM 32, a flash memory, and a hard disk, and performs various processes based on each data of the database. Note that the program and data may be recorded on different recording media, or may be recorded on the same recording medium.
[0101]
Further, using a home personal computer, the program, data, etc. transmitted from the information base 51 are downloaded to an external recording medium such as a memory card or a flexible disk that is detachable from the personal computer, and the program is downloaded. It is also possible to start up and perform various processes based on the data.
[0102]
By the way, since the server 53 can manage various data, the CPU 54 is provided with information display processing means such as information acquisition processing means, information determination processing means, notification processing means, etc. (not shown). Road registration processing means and the like that are not performed can be provided.
[0103]
In this case, when the driver designates a predetermined road in the navigation processing unit 17, the road registration processing means registers the designated road, and the CPU 31 sends a predetermined signal representing the registered road to the server 53.
[0104]
On the other hand, in the server 53, the information acquisition processing unit acquires traffic jam information as traffic information, and the information determination processing unit reads the traffic jam information acquired in the information acquisition processing and reads a signal representing the registered road. , It is determined whether the traffic jam information is traffic jam information corresponding to a registered road.
[0105]
When the traffic information is traffic information corresponding to the registered road, the message display processing means of the information display processing means sends a message to the navigation device 14. Along with this, the CPU 31 forms a message display screen as shown in FIG. 9 on the display of the display unit 35 as the display means and the first output device.
[0106]
Further, when the driver gives an instruction to display the traffic jam status, the traffic jam status display processing means of the information display processing means sends the traffic jam status to the navigation device 14. Along with this, the CPU 31 forms a traffic condition display screen as shown in FIG. 10 on the display of the display unit 35.
[0107]
Then, when the driver selects a predetermined registered road, the information drawing processing means of the information display processing means converts the link information about the selected registered road into a traffic jam arrow, draws the traffic jam arrow, The image data of the road link number is sent to the navigation device 14. Then, the CPU 31 forms another map screen as shown in FIG. 12, and displays a traffic jam arrow a2 drawn along the road L13 (FIG. 12) on the map screen.
[0108]
In each of the above-described embodiments, the case where traffic jam information is displayed as traffic information has been described, but other information such as an accident, road closure, speed regulation, lane regulation, required time, and parking lot is displayed as traffic information. You can also
[0109]
In each of the above embodiments, the traffic information is displayed by displaying it as a traffic condition index. However, by displaying the traffic information as characters or by outputting the voice synthesized by the voice synthesizer, You can also be notified.
[0110]
And in each of the embodiments, a predetermined road is registered as a registered road, and traffic information corresponding to the registered road is displayed, but an arbitrary point on the map is registered as a registered point, It is also possible to display traffic information corresponding to the registered point, for example, traffic information within a predetermined range from the registered point.
[0111]
In each of the above embodiments, a predetermined road is registered as a registered road, and traffic information corresponding to the registered road is displayed. However, it is displayed on an arbitrary area, for example, an administrative area or a display. The registered map area can be registered as a registration area, and traffic information in the registration area can be displayed.
[0112]
In addition, this invention is not limited to the said embodiment, It can change variously based on the meaning of this invention, and does not exclude them from the scope of the present invention.
[0113]
【The invention's effect】
As described above in detail, according to the present invention, when the acquired traffic information is traffic information corresponding to a registered road or registration point, the traffic information is displayed for the registered road or registration point. When trying to recognize traffic information at a point that is not on the map screen formed in the above, not only can the work for recognizing the traffic information be simplified, but also the time required to recognize the traffic information Can be shortened.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a main part of a navigation system according to a first embodiment of the present invention.
FIG. 2 shows a data structure of traffic information according to the first embodiment of the present invention.
FIG. 3 is a flowchart showing an operation of road registration processing in the first embodiment of the present invention.
FIG. 4 is a diagram showing a map screen before road registration processing is performed in the first embodiment of the present invention.
FIG. 5 is a diagram showing a menu screen for road registration processing according to the first embodiment of the present invention.
FIG. 6 is a diagram showing a registration instruction screen for road registration processing according to the first embodiment of the present invention.
FIG. 7 is a flowchart showing an operation of information display processing in the first embodiment of the present invention.
FIG. 8 is a diagram showing a map screen when the driver is driving the vehicle after road registration processing is performed in the first embodiment of the present invention.
FIG. 9 is a diagram showing a message display screen for information display processing in the first embodiment of the present invention;
FIG. 10 is a diagram showing a traffic jam status display screen for traffic jam display processing according to the first embodiment of the present invention.
FIG. 11 is a first diagram showing a map screen for information drawing processing according to the first embodiment of the present invention;
FIG. 12 is a second diagram showing a map screen for information drawing processing according to the first embodiment of the present invention.
FIG. 13 is a flowchart showing an operation of the navigation device according to the second embodiment of the present invention.
FIG. 14 is a flowchart showing an operation of the navigation device according to the third embodiment of the present invention.
FIG. 15 is a block diagram showing a navigation system according to a fourth embodiment of the present invention.
[Explanation of symbols]
14 Navigation device
17 Navigation processor
31 CPU
50 Navigation system
53 servers
a1, a2 Traffic jam arrow

Claims (9)

Based on the information acquisition processing means for acquiring traffic information, the registered road or registration point registered in advance, and the traffic information acquired by the information acquisition processing means, the acquired traffic information is registered in the registered road or registration point. Information determination processing means for determining whether or not the corresponding traffic information, and when the acquired traffic information is traffic information corresponding to a registered road or a registered point , the traffic information of the registered road or registered point Information display processing means for displaying only a certain registered road or registered point in a list and displaying a map including the registered road or registered point together with traffic information when a desired registered road or registered point is selected from the displayed list A navigation system comprising:   The navigation system according to claim 1, wherein when the vehicle deviates from the searched route, a predetermined road or a point is registered as the registered road or registered point in correspondence with a departure point from the searched route.   The navigation system according to claim 2, wherein the predetermined road is a road existing within a predetermined range from the departure point.   When the vehicle returns from the searched route after returning from the searched route, a predetermined road or point is registered as the registered road or registered point corresponding to the departure point from the searched route and the return point to the searched route. The navigation system according to claim 1.   The navigation system according to claim 4, wherein the predetermined road is a road between a departure point from the searched route on the searched route and a return point to the searched route. The navigation system according to claim 1, wherein when the route is searched again after the vehicle deviates from the searched route, the re-searched route is registered as a registered road. The registered road or registration point, the navigation system according to 請 Motomeko 1 that exist from the specified point within a predetermined range by the operator. Based on the information acquisition processing means for acquiring traffic information, the registered road or registration point registered in advance, and the traffic information acquired by the information acquisition processing means, the acquired traffic information is registered in the registered road or registration point. Information determination processing means for determining whether or not the corresponding traffic information, and when the acquired traffic information is traffic information corresponding to a registered road or a registered point, on the search route of the registered road or registered point Information display processing means for displaying only registered roads or registered points in a list and displaying a map including the registered roads or registered points together with traffic information when a desired registered road or registered point is selected from the displayed list A navigation system characterized by comprising: Based on the information acquisition processing means for acquiring traffic information, the registered road or registration point registered in advance, and the traffic information acquired by the information acquisition processing means, the acquired traffic information is registered in the registered road or registration point. Information determination processing means for determining whether or not the corresponding traffic information, and when the acquired traffic information is traffic information corresponding to a registered road or a registered point , the traffic information of the registered road or registered point Information display processing means for displaying only a certain registered road or registered point in a list and displaying a map including the registered road or registered point together with traffic information when a desired registered road or registered point is selected from the displayed list And a navigation device.

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