JP3214564B2 - Traffic information display device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a traffic information display device, and is used for a system for receiving mobile traffic information such as FM multiplex broadcasting.

[0002]

2. Description of the Related Art In recent years, digital data broadcasting such as traffic information for mobile objects has been put into practical use. In this broadcast, data for superimposing data such as traffic congestion information, regulation information, and parking lot information on map data is transmitted.

Normally, such information is displayed as a symbol mark on a map. When displaying the information, an order is determined in advance for the traffic information, for example, in an area order or a reception order. Symbol marks for traffic information are displayed one after another.

[0004]

However, if the symbol marks are displayed in a predetermined order, the symbol mark at a location that the operator wants to know while looking at the traffic information displayed in that order. It is necessary to recognize that the mark is displayed, it takes time and steps to display the target symbol mark, the burden of recognizing it is large, and the target traffic information is recognized. It was difficult to do so and there was a risk of overlooking it. Also,
Conventionally, it has been difficult to grasp the details of traffic information.

[0005] The present invention has been made in view of the above problems, on which can be recognized with good accurately grasp the outline of the traffic information you want to know, facilitates the details of the required traffic information
It is another object of the present invention to provide a traffic information display device that can be quickly grasped .

[0006]

To achieve the above object, according to an aspect of, claims 1 to 3 of the present invention, in the invention described in 4-6, display multiple simultaneously on the display unit symbol marks of several traffic information because it is so, it is possible to recognize a good insight into the overview of the traffic information you want to know, or
Details of traffic information according to the selected and indicated symbol mark
Since detailed information on data can be displayed,
The details can be grasped easily and quickly.

[0007]

[0008]

Further, as the selection instruction symbols mark being displayed on the display unit, it is possible to select an instruction manually by input operation from the outside as in claim 7, external as claimed in claim 8 The user can make a selection instruction by touching the screen of the display means.

[0010]

FIG. 1 shows an overall configuration diagram of an embodiment of the present invention. The receiver 20 receives a broadcast in which traffic information is multiplexed and transmitted. The multiplex broadcast received by the antenna 10 is selectively received by the tuner unit and detected by the detector. The receiver 20 includes a band-pass filter for separating and extracting multiplexed traffic information from the detected received signal, a circuit for correcting an error in the extracted data, a memory for temporarily storing the corrected traffic information data, and the like. Have.

The navigation device (navigation unit) 50 includes an azimuth detecting unit for detecting a traveling direction of a moving object, a traveling distance detecting unit for detecting a traveling distance, a map information storage unit for storing map information of each place, and the like. Basically, while the moving object is running,
The current travel position is calculated, and the current position of the moving object is superimposed on the map information read from the map information storage unit, and is displayed on the display device 70 as display means.

The information control unit 40 is mainly composed of a microcomputer, and performs various types of arithmetic processing.
U, ROM for storing fixed data such as control programs,
It includes a RAM that can be read and written as needed, and various input / output circuits. The RAM stores a traffic information storage area for storing the traffic information sent from the receiver 20 and an area for storing the display position coordinates of the symbol mark of the traffic information calculated based on the map data sent from the navigation device 50. Is provided.

When a driver or the like wants to view traffic information, the key operation unit 30 operates a key of the key operation unit to input a display request. With this request, the display device 70
The traffic information symbol is superimposed and displayed on the map. The key operation unit 30 also has means for designating a symbol mark of the displayed traffic information by key operation of the driver, for example, means for designating with a cursor as shown in FIG. . By this designation, the display device 70 displays the details of the traffic information. Display device 70
Is composed of a liquid crystal display, a CRT, and the like, and is controlled by the display controller 60, and displays a map, a current position, a symbol of traffic information, details of traffic information, and the like. The display controller 60 has a character memory, an image memory, and the like. Based on the current traveling position data and the map data transmitted from the navigation device 50, the display controller 60 displays a map, a current position, and the like corresponding thereto on the display device 70.
The traffic information selected by the information control unit 40 is displayed on the display device 70.

Next, the information control unit 40 of the entire configuration
Will be described with reference to FIG. The memory 41 storing the traffic information is a traffic information storage area for storing the traffic information sent from the receiver 20. The traffic information includes traffic congestion information, parking lot information, accident information, regulation information, caution information, and the like. These information are usually shown on a map including the current position of the vehicle as shown in FIG. Are superimposed and displayed. The data structure of the information transmitted from the broadcasting station is, for example, as shown in FIG. 5. When displaying the symbol mark of the traffic information, the data structure specifying the map and the road is followed by the traffic congestion length / regulation. It consists of detailed data such as the period and the fullness of the parking lot.

The display position coordinate calculation unit 42 reads out traffic information from the memory 41,
When the user inputs the map data from and attempts to display the traffic information symbol on the map, the display position of the traffic information symbol is obtained by one of the following two methods. One is to calculate the coordinates on the screen where the symbol of the traffic information is displayed. The other is to obtain data specifying a map and a road, a map code and a link number, as shown in the data configuration of traffic information in FIG. Here, the former uses the screen of the display device 70 as the XY coordinates and calculates the XY coordinate data of the position where the symbol mark of the traffic information is displayed, but every time the current position of the vehicle moves and the map scrolls, Since the display position is updated, it is necessary to recalculate. In the latter, the display position on the map and the road does not change even if the display position on the screen is updated by scrolling the map, so that there is no need for recalculation. Either of the former and the latter may be selected.

The display position coordinate memory 43 is an area for storing the display position of the symbol mark of the traffic information obtained by the display position coordinate calculator 42. Here, information such as an identification number of information is stored together with the display position coordinates. Since the information stored in the display position coordinate memory 43 is naturally also stored in the memory 41, it is possible to identify which information stored in the display position coordinate memory 43 is stored in the memory 41.

A designated coordinate detecting unit 4 which is a designated symbol detecting means.
4 detects a position on the display screen designated by the driver. The driver can designate an arbitrary point on the display screen by using the key operation unit 30. For example, as shown in FIG. 6, when a position on the display screen, that is, a position of a symbol mark of traffic information is designated by a cursor or the like moved by key input, the designated position coordinate detecting unit 44 obtains the designated coordinates on the screen. Or a map code and a link number at a specified position on the screen. If the coordinate data is detected by the designated position coordinate detection unit 44, the display position coordinate calculation unit 42 also determines which one is to be detected.
The coordinate data is obtained, and in the designated position coordinate detection unit 44,
If the map code and the link number are detected, the display position coordinate calculation unit 42 also obtains the map code and the link number.

The instruction information retrieval section 45 retrieves which traffic information symbol mark of the traffic information symbol designated by the driver from a large number of traffic information stored in the memory. First, the position detected by the designated position coordinate detector 44 is input. Next, the display position coordinate memory 43
Input the stored information and position. The instruction information search unit 45 determines whether or not the two input positions match. If any of the plurality of pieces of information stored in the display position coordinate memory 43 matches the position detected by the designated position coordinate detection unit 44, that information is the information corresponding to the symbol mark specified by the driver.

The information read control unit 46 reads the details of the traffic information retrieved by the instruction information retrieval unit 45 from the memory 41 storing the traffic information transmitted from the receiver 20, and displays the information on the display device 70. . Since the information retrieved by the instruction information retrieval unit 45 is information read from the display position coordinate memory 43, it is always stored in the memory 41. The memory 41 also stores details of traffic information. Therefore, the information retrieved by the instruction information retrieval unit 45 can be identified, so that the details of the same information can be read from the memory 41.

The switch 47 switches between a screen for displaying the current position of the vehicle and a symbol for traffic information on the map, and a screen for displaying details of the traffic information. Normally, the display position of the traffic information symbol mark is output from the display position coordinate calculation unit 42. When the driver designates the traffic information symbol mark, the switch 47 is controlled and switched.
The information read control unit 46 outputs details of the traffic information.

FIG. 3 is a flowchart showing the operation of the embodiment of the present invention. First, in step 101, the receiver 20 receives a broadcast in which traffic information is multiplexed and transmitted, and when a driver operates a key of the key operation unit 30 to request display of traffic information, the display device 70 Is displayed by superimposing a traffic information symbol on the map on which the current position of the vehicle is displayed as shown in FIG. The display of the symbol mark on the map is performed by referring to a map code and a link (road) number in the data, as shown in a data configuration example of traffic information in FIG. It is.

Next, at step 102, when the traffic information symbol is displayed on the map, it is determined whether or not the driver has designated (designated) the traffic information symbol. The above instruction is performed when the driver wants to see the details of the traffic information in the traffic information symbol displayed on the map. In the instruction method, for example, by operating a key of the key operation unit 30 as shown in FIG. 6, the cursor on the screen is moved, and the instruction is executed near the symbol mark of the traffic information. Alternatively, a method in which the driver gives an instruction by directly touching the screen may be considered.

When the determination in step 102 is Yes, the process proceeds to step 103, where the designated position coordinate detector 44 in FIG. 2 detects the position on the screen designated by the driver. The detection method is as follows. That is, this method is a method in which the screen of the display device 70 is represented by XY coordinates, and the XY coordinate data of the point designated by the driver is detected. Alternatively, it is a method of detecting the map code and the nearest link (road) number at the point designated by the driver.

Next, the process proceeds to step 104, where the traffic information of the symbol of the traffic information displayed on the position (or the nearest position) detected in step 103 is searched. In other words, the driver instructs to see the details is searched for which traffic information symbol mark.
This step 104 is processed by the instruction information search unit 45 of FIG. The display position on the screen of the symbol mark of the traffic information displayed on the display device 70 is stored in the display position coordinate memory 43. The display position coordinate memory 43
By searching the display positions of the symbol marks of the plurality of traffic information stored in the area closest to the position specified by the driver detected in step 103, the traffic information specified by the driver can be specified.

Next, the routine proceeds to step 105, where the details of the traffic information retrieved in step 104 are read from the memory 41 of FIG. In the display position coordinate memory 43 retrieved in step 104, only the position where the symbol mark of the traffic information is displayed and the identification of which information the symbol mark of the traffic information is stored. Therefore, it is necessary to read the details of the traffic information from the memory 41 based on the identification of the information searched and specified in step 104.

Next, the process proceeds to step 106, where the details of the traffic information read in step 105 are displayed on the display device 70 as shown in FIG. Switch 47 of FIG.
Is switched from a normal map display screen to a detailed information display screen.

The effect of the above embodiment will be described. Conventionally, if a driver wants to know detailed information of a traffic information symbol displayed on a map, the map screen is changed to a menu screen. , Then select the detailed information display screen, then traffic information, accident information, regulatory information,
Parking information, attention information, etc., to select one of the information-based classifications, and furthermore, had to search for information to be turned by turning pages, etc., from the specified classifications. Even without performing such a search operation, detailed information can be viewed simply by specifying (designating) the symbol of traffic information on the map, which not only improves operability but also has an effect on safety. Can be

[Brief description of the drawings]

FIG. 1 is an overall configuration diagram of an embodiment of the present invention.

FIG. 2 is a configuration diagram of an information control unit of FIG. 1;

FIG. 3 is a flowchart showing the operation of the present invention.

FIG. 4 is a diagram showing a display example of map superimposition of traffic information.

FIG. 5 is a diagram illustrating a data configuration example of traffic information.

FIG. 6 is a diagram showing an example of indicating a symbol mark of traffic information.

FIG. 7 is a diagram showing an example of a display screen of details of traffic jam information designated by a driver.

[Explanation of symbols]

20 receiver, 30 key operation unit, 40 information control unit
41: memory, 42: display position coordinate calculation unit, 43: display position coordinate memory, 44: display position coordinate detection unit, 45: instruction information search unit, 46: information read control unit, 47: switch, 70: display device

────────────────────────────────────────────────── ─── Continuing from the front page (72) Inventor Atsushi Ukai 1-1-1, Showa-cho, Kariya-shi, Aichi Prefecture Inside Denso Corporation (72) Inventor Kazumasa Natsume 1-1, Showa-cho, Kariya-shi Aichi Prefecture Inside Denso Corporation (72) Inventor Joe Fujiwara 1-1, Showa-cho, Kariya-shi, Aichi Pref. Denso Corporation (56) References JP-A-5-89399 (JP, A) JP-A-3-137673 (JP, A) Hei 2-12451 (JP, A) JP-A-63-231477 (JP, A) JP-A-59-85599 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) G08G 1 / 09 G01C 21/00 H04B 1/16

Claims (8)

(57) [Claims] What is claimed is: 1. A display means for displaying a map, traffic congestion information that changes the occurrence location on the map, accident information, regulatory information, a traffic information such as the attention information, the occurrence location
With the data shown and detailed data about the location.
Means for receiving a transmission signal including passing information, one of the symbols marked according to the received traffic information before
Display on the display means based on the data indicating the occurrence location
Means for simultaneously displaying a plurality of symbols on the map, and when any one of the symbol marks displayed on the display means is selected and instructed, detailed information relating to detailed data of traffic information corresponding to the selected and instructed symbol mark is displayed. Means for displaying on the display means. 2. A display means for displaying a map, traffic congestion information that changes the occurrence location on the map, accident information, regulatory information, a traffic information such as the attention information, the occurrence location
With the data shown and detailed data about the location.
Receiving means for receiving a transmission signal containing communication information , and a plurality of symbol marks of traffic information received by the receiving means on a map displayed on the display means based on data indicating the place of occurrence at the same time. Means for displaying, when any one of the symbol marks displayed on the display means is selected and displayed, detailed information relating to detailed data of traffic information corresponding to the selected and indicated symbol mark is displayed on the display means. And a means for displaying traffic information. 3. Traffic congestion information in which an occurrence location changes on a map;
Accident information, regulatory information, a traffic information such as the attention information,
Data indicating the location of occurrence and detailed data on the location
Receiving means for receiving traffic information data including traffic information having traffic data; storage means for temporarily storing traffic information data received by the receiving means; reading traffic information data from the storage means; A display means for simultaneously displaying a plurality of symbol marks of traffic information related to the information data on a map based on the data indicating the place of occurrence ; and any one of the symbol marks displayed on the display means is selected and instructed. Means for displaying, on the display means, detailed information on detailed data of traffic information corresponding to the selected and designated symbol mark. 4. A display means for displaying a map, at least traffic information changes occurred location on the map, accident information, regulation information, the traffic information consisting of either care information
The data indicating the location and the location
Means for receiving a transmission signal including the traffic information and a detailed data, one symbol mark according to the received traffic information before
Display on the display means based on the data indicating the occurrence location
Means for simultaneously displaying a plurality of symbols on the map, and when any one of the symbol marks displayed on the display means is selected and instructed, detailed information relating to detailed data of traffic information corresponding to the selected and instructed symbol mark is displayed. Means for displaying on the display means. And display means 5. Show Map least congestion information changes occurred location on the map, accident information, regulation information, the traffic information consisting of either care information
The data indicating the location and the location
Receiving means for receiving a transmission signal including traffic information having detailed data; and displaying any of the symbol marks of the traffic information received by the receiving means on the display means based on the data indicating the place of occurrence . Means for simultaneously displaying a plurality of symbols on a map, and when any one of the symbol marks displayed on the display means is selected and instructed, detailed information relating to detailed data of traffic information corresponding to the selected and instructed symbol mark is displayed. Means for displaying on a display means. 6. The traffic information , which comprises at least one of traffic congestion information , accident information, regulation information, and caution information at which the location of occurrence changes on a map , wherein the data indicating the location of occurrence and the
Receiving means for receiving traffic information data including traffic information having detailed data related to the location of the vehicle; storage means for temporarily storing traffic information data received by the receiving means; and reading traffic information data from the storage means. A display means for simultaneously displaying a plurality of symbol marks of traffic information relating to the read traffic information data on a map based on the data indicating the location of occurrence , and any one of the symbol marks displayed on the display means And a means for displaying, on the display means, detailed information relating to detailed data of traffic information corresponding to the selected and designated symbol mark on the display means. 7. A selection of a symbol mark being displayed on the display means.
Manual selection by external input operation as selection instruction
The exchange according to any one of claims 1 to 6, wherein the instruction is given.
Information display device. 8. Selecting a symbol mark being displayed on the display means.
Touch the screen of the display means from outside as a selection instruction.
7. A selection instruction is given by selecting
The traffic information display device according to any one of the above.