JP3677822B2 - Service information receiver - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a service information receiving apparatus that receives service information transmitted by, for example, FM multiplex text broadcasting.
[0002]
[Prior art]
In recent years, navigation devices for automobiles using GPS (Global Positioning System) have become widespread. In this type of navigation apparatus, latitude information and longitude information of the current position are calculated based on signals from a plurality of artificial satellites received by a GPS antenna, and roads around the current position read from a recording medium such as a CD-ROM. Map data composed of information and place name information is developed and displayed on a display.
[0003]
In such a navigation device, map data fixedly recorded on a recording medium is displayed including the current position. For example, a road in the current traveling direction is congested due to an accident, It is not possible to obtain traffic information with a high degree of immediacy such as the approach ramp on the highway being temporarily closed.
[0004]
On the other hand, recently, a service has been considered in which display information such as characters is multiplexed and transmitted on FM voice radio waves, and the display information is displayed on the receiving side. This service is called mobile FM teletext broadcasting, and has been put into practical use as a visible radio (VISUAL INFORMATION RADIO).
[0005]
In this FM multiplex broadcasting, when an FM broadcast station transmits a broadcast radio wave in which display information such as characters and numbers is multiplexed on normal broadcast audio information, the FM broadcast radio wave is provided with a display such as a liquid crystal panel as a receiving terminal. FM audio information received by a radio receiver and display information multiplexed thereon are separated, and the display information is converted into a character code and displayed on a display.
[0006]
As a result, while listening to FM broadcasts, not only the information related to the broadcast, such as the name of the music being broadcast, the name of the artist, the commentary, the request vote, etc., but also not directly related to the broadcast News, weather forecasts, traffic information, etc. can also be viewed as text information by designating programs.
[0007]
Therefore, it is considered that a practical navigation device can be provided if the immediate traffic information that cannot be obtained by the conventional navigation device is supplemented by the FM character multiplex broadcasting.
[0008]
[Problems to be solved by the invention]
Therefore, when the traffic information actually received by FM character multiplex broadcasting is displayed together with the map by the navigation device, a method of displaying the traffic information character string on a part of the map screen, and the traffic information character string. And a method of switching the screen and displaying the map.
[0009]
However, in the former method, since a character string is displayed in a part of the map screen with a limited size, a large amount of characters cannot be displayed at a time, and the received traffic information character string It will be displayed in such a way that it flows in part of the screen.
[0010]
Therefore, the user of this navigation device himself / herself selects the information necessary for himself / herself, that is, the information on the road ahead of the traveling direction of the vehicle, from the traffic information sequentially displayed in a part of the screen. As a result, it is necessary to continue to look at the display screen, which is very dangerous when driving a car and is not practical.
[0011]
In the latter method, it is appropriate that the user switches between the map display screen and the traffic information character string display screen as required by the user. Not only is it bothersome, but in order to select the information you need from the traffic information character string display screen, you have to keep watching the display screen for a certain amount of time. It is dangerous and not practical as well.
[0012]
The present invention has been made in view of the above circumstances, and the object of the present invention is to select only necessary traffic information automatically or manually and display it in a form that can be easily recognized on a map. It is to provide a service information receiving apparatus.
[0013]
[Means for Solving the Problems]
  That is, the present invention
  (1) Map data storage means storing map data including character information, receiving means for receiving service information including character information, and the map data storage meansContains text informationMap data reading means for reading the map data and the map data reading meansContains text informationDisplay means for displaying the map data, and character information in the map data displayed on the display meansA match detecting means for detecting a match with the character information in the service information received by the receiving means, and a match detected by the match detecting meansDisplay control means for displaying service information including character information on the display means.
[0014]
  (2) In the above item (1), further comprising current position acquisition means for acquiring position information indicating the current position, wherein the map data reading means uses the map data according to the position information of the current position obtained by the current position acquisition means. From storage meansContains text informationMap data is read out.
[0015]
(3) In the above item (1) or (2), the display control means includes service information including character information matching the character information in the vicinity of the character information in the map data displayed on the display means. Is displayed.
[0016]
  (4) In any of the above items (1) to (3),The coincidence detection unit detects a match between the character information in the map data within a predetermined range from the current location not displayed on the display unit and the character information in the service information received by the reception unit.Further means are provided.
[0017]
  (5)  In the item (4), the display control means displays the service information including the character information in which the coincidence with the character information in the map data displayed on the display means is detected by the coincidence detecting means. And displaying the service information including the character information in which the coincidence detection unit detects the coincidence with the character information in the map data within a predetermined range from the current location which is not displayed on the display unit. The display means is made to display in a second mode different from the first mode.
  (6) Above (1) to (5), The character information is place name, place name, or road name information.
  (7) Map data storage means for storing map data including character information; receiving means for receiving service information including character information;Map data reading means for reading map data including character information from the map data storage means; display means for displaying map data including character information read by the map data reading means;Current position acquisition means for acquiring position information indicating the current position; character information in map data in a predetermined range from the current position indicated by the position information acquired by the current position acquisition means;A match detection unit that detects a match with the character information in the service information received by the receiving unit, and a match is detected by the match detection unitService information including text informationthe aboveDisplay control means for displaying on the display means.
  (8)In any one of (1) to (7) above,Road name information acquisition means for acquiring current road name information as character informationThe reception means receives service information including road name information and place name information as character information, and the coincidence detection means includes the road name information acquired by the road name information acquisition means and the reception A first match detection means for detecting a match with the road name information in the service information received by the means, and when the match of the road name information is detected by the first match detection means, display on the display means A second match detection means for detecting a match between the place name information in the map data and the place name information in the service information received by the receiving means, wherein the display control means includes the second match detection means. The service information including the place name information whose match is detected by the match detection means is displayed on the display means.It is what I did.
[0018]
  (9) the above(8), The road name information acquisition means includes a current position acquisition means for acquiring position information indicating the current location, a storage means for storing road name information corresponding to the position information as character information, and the current position acquisition means. And reading means for reading out character information from the storage means based on the obtained position information of the current location.
[0019]
  (10)In any of the above items (1) to (9),It further comprises traveling direction acquisition means for acquiring traveling direction information indicating the current traveling direction,The coincidence detecting means matches the character information in the map data in a predetermined range of the traveling direction indicated by the traveling direction information acquired by the traveling direction acquiring means and the character information in the service information received by the receiving means. DetectIt is what I did.
  (11)  Map data storage means for storing map data including character information; receiving means for receiving service information including character information; map data reading means for reading map data including character information from the map data storage means; Display means for displaying map data including character information read by the map data reading means, traveling direction acquisition means for acquiring traveling direction information indicating the current traveling direction, and progress acquired by the traveling direction acquisition means A match detection unit that detects a match between the character information in the map data in the predetermined range in the traveling direction indicated by the direction information and the character information in the service information received by the receiving unit, and a match is detected by the match detection unit Display control means for causing the display means to display service information including the written character information.
[0020]
  (12)Map data storage means storing map data including character information, receiving means for receiving service information including character information, service information including character information received by the receiving means, and the map data storage means Display means for displaying map data including character information stored in the character information; character information in the service information received by the receiving means; character information in the map data stored in the map data storage means; And the display means includes service information including the character information received by the receiving means, and map data around the character information where the match is detected by the match detecting means. Is to display.
[0021]
  (13) the above(12)The display means displays the service information including the character information received by the receiving means on the map data in the vicinity of the character information where the match is detected by the match detection means.It is what I did.
[0022]
  (14)In the above item (12) or (13), a storage unit that stores a plurality of service information including character information received by the reception unit, and an arbitrary one of a plurality of service information stored in the storage unit Selection means for selecting service information, wherein the match detection means includes character information in the service information selected by the selection means, and character information in the map data stored in the map data storage means. The display means displays the service information selected by the selection means and the map data around the character information where the match is detected by the match detection means.
[0024]
  (15) Above (1) to (14) Further includes pictogram storage means for storing pictograms corresponding to character information, and the display means stores pictograms corresponding to character information included in service information received by the receiving means. The information is read from the means and displayed.
[0025]
(16)  the above(15)The receiving means includes means for receiving service information including a plurality of character information included in the map data, and the display means matches the map information received by the receiving means. The pictogram corresponding to the service information is read from the pictogram storage means and displayed between the character information in the map data stored in the data storage means.
[0026]
DETAILED DESCRIPTION OF THE INVENTION
DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment when the present invention is applied to an automobile navigation device using GPS and FM character multiplex broadcasting will be described below with reference to the drawings.
FIG. 1 shows a circuit configuration of the entire apparatus. A GPS antenna 1 installed on a roof of a vehicle body, and a C / L of an L1 band (1.57542 GHz) from a plurality of GPS satellites received by the GPS antenna 1. And a GPS block 2 that demodulates and decodes the A code data by a despreading LSI and calculates the latitude, longitude, height, time, etc. of the current location.
[0027]
The GPS block 2 is connected to a graphic block 3. The graphic block 3 includes an FM antenna 4, a key block 5 having various input keys such as a mode key and a cursor key, which will be described later, road information, and place name information. A CD block 6 on which a CD-ROM, which is a recording medium on which the map data is recorded, is mounted, for example, a monitor block 7 having a display device composed of a color LCD panel is connected.
[0028]
The graphic block 3 is provided with a CPU 13 that controls the entire apparatus based on an operation program stored in the ROM 11 and various data stored in the RAM 12.
[0029]
Further, the RAM 12 is provided with a message memory area MM for storing message data as various service information received by FM character multiplex broadcasting as shown in FIG. That is, the message memory area MM is composed of N memory areas corresponding to program numbers 1 to N, and each memory area has a capacity sufficient to store a plurality of message data. Shall.
[0030]
Here, for example, message data of program interpolation information including the name of a song or artist being broadcast in FM audio broadcasting in the memory area of program number 1, traffic information in the memory area of program number 2, memory area of program number 3 In the memory area of other program numbers, information that does not correspond to area names such as news, sports, and weather forecasts, or message data such as overseas news and sports information is stored as service information. .
[0031]
Further, in the graphic block 3, an FM tuner 14 that demodulates FM radio waves received by the FM antenna 4 to obtain an FM audio signal of a desired broadcast station, and is connected to the FM tuner 14 and multiplexed on the FM audio signal. CPU peripheral circuit gate array (G / A) which performs input / output control of data between the GPS block 2, the key block 5 and the CD block 6 and the CPU 13 mainly for decoding the read character signal. 16 and a graphic controller 17 are provided by bus connection together with the ROM 11, RAM 12 and CPU 13, and a video RAM 18 is connected to the graphic controller 17.
[0032]
When the road is traveling on the road, the CPU 13 sends the latitude and longitude data of the current location, that is, the position data together with data representing other heights, times, etc. from the GPS block 2 via the CPU peripheral circuit G / A16. The map data around the current location is called from the CD block 6 and sent as display data to the graphic controller 17 to which the video RAM 18 is connected. On the other hand, the message data decoded by the FM multiplex decoder 15 and stored in the message memory area MM of the RAM 12 is stored. This is read out as necessary, and this is also sent as display data to the graphic controller 17.
[0033]
In the graphic controller 17, map data and character message data sent from the CPU 13 are developed together on the video RAM 18 to create display data for each screen, and the created display data is sent to the monitor block 7. A map containing character information is displayed.
[0034]
FIG. 3 shows message data as service information received by the FM antenna 4, demodulated through the FM tuner 14, decoded by the FM multiplex decoder 15 and stored in the message memory area MM of the RAM 12. The structure of message data of traffic information and area information of program numbers 2 and 3 is illustrated.
[0035]
FIG. 3A illustrates the structure of traffic data message data of program number “002”. As shown in the figure, the program number, road name, A set of message data is composed of a place name or place name and traffic information indicating the contents of a specific accident, traffic jam or the like.
[0036]
FIG. 3B shows an example of the structure of the message data of the area information of the program number “003”. As shown in the figure, the program number and the place name for identifying the contents of the message data arranged at the head position are shown. Alternatively, a set of message data is composed of a place name and specific area information (location information) including event information such as festivals, concerts, and sports in the area or weather forecast and news in the area.
[0037]
Next, the operation of the above embodiment will be described.
First, basic operations of GPS data reception processing and FM character multiplex broadcast reception processing will be described with reference to FIGS.
[0038]
FIG. 4 shows the basic processing contents of the map display for navigation accompanying the reception of GPS data. At the beginning of the processing, the GPS antenna 1 uses the L1 band (1.57542 GHz) from a plurality of GPS satellites. When the C / A code data is received (step A1), the GPS block 2 demodulates and decodes the data received by the GPS antenna 1 to decode the current position data including the latitude and longitude information of the current position including the height and time information. Is detected (step A2).
[0039]
The detected current position data is sent to the CPU 13 via the CPU peripheral circuit G / A 16, and the CPU 13 calculates a map area to be developed in the video RAM 18 from the current position data with a preset value, and the calculated map area is displayed. The CD block 6 is accessed according to the indicated latitude and longitude range, and all road data (including road name data) and place name data in the corresponding map area are read from the map data of the CD-ROM mounted on the CD block 6, The data is expanded in the video RAM 18 (step A3), and it is determined whether or not the position indicated by the current position data on the map data is on the road, that is, whether or not the detected current position data includes an error. (Step A4).
[0040]
Here, there is no problem if it is determined that the current position is on the road, but if it is determined that the current position is not on the road, the current position data includes an error. After selecting a road that may be present (step A5), a part of the area centered on the current position in the map data developed in the video RAM 18 is displayed on the monitor block 7 (step A6).
[0041]
At this time, on the map displayed on the monitor block 7, a symbol mark indicating the vehicle position and the traveling direction is displayed on the road corresponding to the current position. This traveling direction may be calculated from changes over time using the current position data for the past several seconds, for example. Although not shown in FIG. 1, a new direction detection sensor such as a gyro sensor may be added. It may be provided and detected directly.
[0042]
Further, a so-called heading-up process is performed in which the map displayed on the monitor block 7 always rotates so that the current traveling direction is upward corresponding to the traveling direction. In this case, by displaying the vehicle position in the map data not at the center but at a position slightly below it, more map data in the range to be traveled ahead in the travel direction is displayed. Therefore, it becomes easy to obtain information necessary for driving. In this heading-up process, the map data stored in the video RAM 18 is appropriately rewritten including the display range to be read out to the monitor block 7.
[0043]
By repeatedly executing such a series of steps A1 to A6, the display of map data including the current position for the reception of GPS data can be performed.
[0044]
FIG. 5 shows the basic processing contents of reception of FM character multiplex broadcasting. At the beginning of the processing, the FM tuner 14 selects a broadcast station that is executing the desired FM character multiplex broadcasting by the FM antenna 4. The character information received by the station is decoded by the FM multiplex decoder 15 to obtain the message data of the character information as shown in FIG. 3 (step B1).
[0045]
Then, storage is set in the corresponding memory area of the RAM 12 in accordance with the program number located at the head of the obtained message data (step B2), and the reception processing of this FM character multiplex broadcast is completed.
[0046]
Next, the operation in the first to third GPS reception modes by the operation of the mode key provided in the key block 5 will be described.
FIG. 6 shows this first case when the mode is switched to the first mode by the operation of the mode key from the basic GPS data receiving operation shown in FIG. 4 or the second and third mode operations described later. 3 shows a series of processing contents repeatedly executed until the mode is canceled, and initially, a plurality of traffic information message data stored in the memory area of program number 2 in the message memory area MM of the RAM 12 All the road name information attached second from the head of each of the above is read out, and it is determined whether there is a match among the map data developed in the video RAM 18 (step C1). Similarly, the place name information given second from the beginning of the message data of the plurality of pieces of area information stored in the memory area of the program number 3 in the message memory area MM. All read again repeatedly executes the operation of determining whether there is a match in the map data developed (step C2) to video RAM 18.
[0047]
If it is determined in step C1 that the matching road name information is in the map data in the video RAM 18, the storage position of the road name information in the map data in the video RAM 18 is displayed on the monitor block 7. It is judged whether it is within the range (step C3).
[0048]
If it is determined that it is out of the display range, the matched road name information and the subsequent place name and traffic information are read from the memory area of the program number 2 in the message memory area MM of the RAM 12 and developed as character dot pattern data. Within the display range in the map data of the video RAM 18, the above-described heading-up process overwrites and stores the upper position of the display screen in the traveling direction of the vehicle, and displays it on the monitor block 7 by the graphic controller 17 ( Step C4).
[0049]
FIG. 7A exemplifies the display screen on the monitor block 7 at this time. The vehicle mark SM is displayed on the map with the arrow indicating the traveling direction pointing upward, and the range of the displayed map. Is not included, but as traffic information ahead
"Chuo Expressway Chofu-Takaido traffic jam 5km"
That the information is received is superimposed on the upper part of the screen.
[0050]
Thereafter, as the current position is moved by the traveling of the host vehicle, it is determined whether or not the storage position of the matching road name information in the video RAM 18 is within the range displayed on the monitor block 7 (step C5). If it is determined that it is not yet within the display range, it is further determined whether or not the road name information is still in the map data stored in the video RAM 18, that is, on the traveling direction side (step C6). ).
[0051]
In this case, the traveling direction side in the map data is, for the time being, whether it is within the range of 90 degrees left and right from the traveling direction of the vehicle, that is, the front side when the entire range is divided into the front side and the rear side. If it is determined that it is still in the traveling direction side in the map data of the video RAM 18, the processing from step C4 is repeated and the display as shown in FIG. To continue.
[0052]
If it is determined in step C3 that the storage location of the matching road name information in the video RAM 18 is within the range displayed on the monitor block 7, or the current position is moved by the vehicle traveling in step C5. When it is determined that the storage position of the matching road name information in the video RAM 18 falls within the range displayed on the monitor block 7, the place name and traffic next to the matching road name information are then transferred. The information is read from the memory area of program number 2 in the message memory area MM of the RAM 12 and expanded as character dot pattern data, overwritten in the vicinity of the corresponding road name information in the map data of the video RAM 18 and stored by the graphic controller 17. It is displayed on the monitor block 7 (step C8).
[0053]
FIG. 7B illustrates the display screen on the monitor block 7 at this time. The vehicle mark SM is displayed on the map with an arrow indicating the traveling direction pointing upward, and as traffic information ahead in the traveling direction. ,
"Upstream traffic between Chofu and Takaido 5km"
Is displayed in the vicinity of the position of the road name “Chuo Expressway”.
[0054]
Thereafter, it is determined whether or not the storage position of the matching road name information in the video RAM 18 is out of the range displayed on the monitor block 7 as the current position is moved by the traveling of the host vehicle (step C9). If it is determined that the display range has not yet been removed, the processing from step C8 is repeated and the display as shown in FIG. 7B is continued.
[0055]
If it is determined in step C9 that the storage position of the matching road name information in the video RAM 18 is out of the range displayed on the monitor block 7, then the process proceeds to step C6 and the road name information is still not stored. It is determined whether or not the map data is stored in the video RAM 18 (traveling direction side), and if it is on the traveling direction side, the processing from step C4 is repeatedly executed as described above, and FIG. Continue to display as shown in.
[0056]
If it is determined in step C6 that the matching road name information is not on the traveling direction side in the map data stored in the video RAM 18 as the current position is moved by the traveling of the host vehicle, The character dot pattern data of the traffic information that has been displayed superimposed on the display screen in FIG. 7 (a) or FIG. 7 (b) is deleted from the video RAM 18, and the traffic information is displayed on the display screen of the monitor block 7. Stop (step C7), the process of FIG.
[0057]
If it is determined in step C2 that the matching place name information exists in the map data of the video RAM 18, the storage position of the place name information in the map data of the video RAM 18 is displayed on the monitor block 7 next. It is judged whether it is within a certain range (step C10).
[0058]
If it is determined that it is out of the display range, the area information following the matching place name is read from the memory area of the program number 3 in the message memory area MM of the RAM 12 and developed as character dot pattern data, and the map data of the video RAM 18 In the inside display range, the heading-up process described above overwrites and stores the position at the top of the display screen, which is the traveling direction of the host vehicle, and displays it on the monitor block 7 by the graphic controller 17 (step C11).
[0059]
The display screen on the monitor block 7 at this time is similar to that shown in FIG. 7 (a), and is displayed by superimposing characters based on the area information instead of the traffic information at the top of the screen.
[0060]
Thereafter, it is determined whether or not the storage location of the matching place name information in the video RAM 18 is within the range displayed on the monitor block 7 as the current position is moved by the traveling of the host vehicle (step C12). If it is determined that it is not yet within the display range, whether or not the place name information is still in the map data (traveling direction side) stored in the video RAM 18, that is, the matched place name is displayed. It is determined whether or not the direction of travel has changed before being performed (step C13).
[0061]
If it is determined that the place name information is still in the map data of the video RAM 18, the processing from step C11 is repeated and the display is continued.
Further, when it is determined in step C10 that the storage location of the matching place name information in the video RAM 18 is within the range displayed on the monitor block 7, or in step C12, the current position is moved by the traveling of the host vehicle. Accordingly, if it is determined that the storage location of the matching place name information in the video RAM 18 falls within the range displayed on the monitor block 7, the area information subsequent to the matching place name information is then stored in the message in the RAM 12. It is read from the memory area of program number 3 in the memory area MM, expanded as character dot pattern data, overwritten and stored in the vicinity of the corresponding place name information in the map data of the video RAM 18, and displayed on the monitor block 7 by the graphic controller 17. (Step C14).
[0062]
The display screen on the monitor block 7 at this time is similar to that shown in FIG. 7 (b), and characters in the region information are superimposed and displayed in the vicinity of the location of the corresponding place name. Is.
[0063]
Thereafter, as the current position is moved by the traveling of the host vehicle, it is determined whether or not the storage position of the matching place name information in the video RAM 18 is out of the range displayed on the monitor block 7 (step C15). If it is determined that the display range is not yet out, the process from step C14 is repeated and the display is continued.
[0064]
When it is determined in step C15 that the storage location of the matching place name information in the video RAM 18 is out of the range displayed on the monitor block 7, or from the map data stored in the video RAM 18 in step C13. If it is determined that the area information has come off, then the character dot pattern data of the area information that has been displayed superimposed on the display screen is erased from the video RAM 18, and the display of the area information on the display screen of the monitor block 7 is stopped (step C16). Thus, the process of FIG. 6 is temporarily terminated.
[0065]
In steps C11 and C14, the area information corresponding to the place name information is displayed at the top of the map display screen or near the place name position. However, the map is erased and only the place name and area information are switched and displayed. You may do it.
[0066]
In addition, when a plurality of road name information or place name information matches, the traffic information corresponding to the display screen is obtained by executing the process shown in FIG. 6 in parallel for each matched road name information or place name information. Alternatively, a plurality of area information is displayed.
[0067]
Next, referring to FIG. 8, the mode is switched to the second mode by operating the mode key from the basic GPS data receiving operation shown in FIG. 4, the first mode operation, or the third mode operation described later. In the case of switching, a series of processing contents repeatedly executed until the second mode is canceled is shown.
[0068]
In the figure, at the beginning of the processing, after the road name information of the road on which the vehicle is running is read from the CD-ROM of the CD block 6 (step D1), the program number 2 in the message memory area MM of the RAM 12 is read. All the road name information given second from the beginning of each of the plurality of traffic information message data stored in the memory area is read out, and it is determined whether there is a match (step D2).
[0069]
If there is no match, the process returns to the process from step D1 as it is and waits to receive traffic data message data with matching road name information. If there is a match, In the memory area of the program number 2 in the message memory area MM, the place name information following the road name information is within a predetermined range of the traveling direction of the vehicle in the map data of the video RAM 18, for example, 45 ° left and right (90 ° left and right each). It may be determined whether or not the place name matches with the place name (step D3).
[0070]
If it is determined that there is no match here, the range in the direction of travel is that traffic information, so the process returns to step D1 and waits for the reception of new traffic information message data. However, if it is determined that there is a match, it is determined whether or not the storage position of the place name information in the map data of the video RAM 18 is within the range displayed on the monitor block 7 (step D4). If it is determined that it is out of the display range, the traffic information following the matching place name information is read from the memory area of the program number 2 in the message memory area MM of the RAM 12 and developed as character dot pattern data. Within the display range in the map data, the heading-up process described above causes the vehicle to move upward to a position that is the upper part of the display screen. Can then be stored, it is displayed on the monitor block 7 by the graphic controller 17 (step D5).
[0071]
FIG. 9A exemplifies a display screen on the monitor block 7 at this time, and the vehicle mark SM is displayed on the road “ring 7 street” in the map with the arrow indicating the traveling direction pointing upward. , Which is not included in the displayed map area, but as traffic information of the direction of travel on the road where the vehicle is traveling,
"Accident occurred near Koenji"
That the information is received is superimposed on the upper part of the screen.
[0072]
Thereafter, as the current position is moved by the traveling of the host vehicle, it is determined whether or not the storage position of the matching place name information in the video RAM 18 is within the range displayed on the monitor block 7 (step D6). If it is determined that the road is not still within the display range, it is confirmed that the road name information of the road that is currently running has not changed when the current position is moved due to the running of the vehicle ( Step D7), the processing from Step D5 is repeated and the display as shown in FIG. 9A is continued.
[0073]
Further, if it is determined in step D4 that the storage location of the matched place name information in the map data of the video RAM 18 is within the range displayed on the monitor block 7, or if the vehicle is traveling in step C6, When it is determined that the storage location of the matching place name information in the video RAM 18 falls within the range displayed on the monitor block 7 as the position moves, the traffic information following the matching place name information is displayed. The data is read from the memory area of program number 2 in the message memory area MM of the RAM 12 and expanded as character dot pattern data, overwritten and stored in the vicinity of the corresponding place name information in the map data of the video RAM 18, and the monitor block 7 is read by the graphic controller 17. (Step D8).
[0074]
FIG. 9B illustrates the display screen on the monitor block 7 at this time. The vehicle mark SM is displayed on the map with the arrow indicating the traveling direction pointing upward, and the place name “Koenji” ahead of the traveling direction is displayed. As the traffic information at the position “”, the fact that the information “occurrence of accident” has been received is superimposed on the place name and the position of the road.
[0075]
At this time, for example, instead of or in addition to the characters “accident occurrence”, a graphic mark indicating an accident, for example, “×” is read from the ROM 11 storing a plurality of graphic marks, and the place name location on the road By displaying the traffic information on the map, the traffic information can be more visually expressed in the map, and in particular, the user who is driving the vehicle can be easily recognized.
[0076]
Thereafter, it is confirmed that the road name information of the currently running road is not changed as the current position is moved by the traveling of the host vehicle (step D9). 9 (b), it is confirmed that the storage position of the vehicle is not deviated from the predetermined range in the traveling direction of the host vehicle in the map data (step D10). ) Continue to display as shown.
[0077]
In addition, as the current position is moved by the traveling of the host vehicle, the storage position in the video RAM 18 of the place name information that coincides in step D10 deviates from the predetermined range in the traveling direction of the host vehicle in the map data. When it is determined (that is, when the own vehicle has passed a place corresponding to the place name) or when it is determined that the road name information of the road currently traveling has changed in the above steps D9 and D7, The character dot pattern data of the traffic information that has been displayed superimposed on the display screen in FIG. 9 (a) or FIG. 9 (b) is deleted from the video RAM 18, and the traffic information is displayed on the display screen of the monitor block 7. Stop (step D11), the process of FIG.
[0078]
In the process in the second mode of FIG. 8, the road name information of the road currently running in step D2 and the plurality of traffic information stored in the memory area of program number 2 in the message memory area MM are stored. Only when it is compared with the road name information of the message data and it is determined that there is a match, the place name information of the message data following the road name information is within a predetermined range in the traveling direction of the vehicle in the following step D3. In the second mode, it has been described that it is determined whether or not a place name matches, and if it matches, the display process as shown in FIGS. 9A and 9B is performed in step D5 or D8. When the traffic information message data including the road name information of the road that is currently running is received during the execution of the process of step D3, the process of step D3 is omitted and the place name information that follows the road name information There irrespective of whether it is within a predetermined range of the traveling direction may be immediately display the traffic information unconditionally.
[0079]
In addition, when there is a plurality of traffic information that matches the road name information, a plurality of corresponding traffic information is displayed on the display screen by executing the processing shown in FIG. 8 in parallel for each matched traffic information. It is what comes to do.
[0080]
As a method for obtaining road name information of the road on which the vehicle is traveling, road name information is stored in advance corresponding to the position information of each road, and position information that matches the current position information of the own vehicle. For example, a method of reading road name information corresponding to can be considered.
[0081]
In addition, the message data of traffic information including road name information is received. For example, the position information is received instead of the road name information, and the road name is determined from the position information on the receiving side. Also good.
[0082]
If comprised in this way, it will become possible to discriminate | determine correctly whether it is the traffic information of the driving direction of the own vehicle from the received positional information.
Next, referring to FIG. 10, when the basic GPS data receiving operation shown in FIG. 4 or the first or second mode operation is switched to the third mode by the operation of the mode key. A series of processing contents repeatedly executed until the third mode is canceled is shown.
[0083]
In the same figure, at the beginning of the processing, a plurality of programs, for example, a traffic information program of program number 2 and a regional information program of program number 3 are displayed on the display screen in the monitor block 7 and the cursor key of the key block 5 is displayed. When the user is prompted to select a program and an operation for actually selecting a program is performed (step E1), it is first determined whether or not program number 2 is selected according to the content of the operation (step E2).
[0084]
If it is determined that program number 2 has been selected, the latest one is read from the traffic information message data stored in the memory area of the corresponding program number 2 in the message memory area MM of the RAM 12, and the road name is read. Using the place name information following the information, the map data centered on the place name position is searched from the CD-ROM of the CD block 6 (step E3).
[0085]
Next, the retrieved map data including the place name is developed on the video RAM 18, and a part of the place name centered is displayed on the monitor block 7 by the graphic controller 17 (step E4).
[0086]
Then, using the road name information and traffic information in the read message data, the traffic information is developed as character dot pattern data, and near the position corresponding to the corresponding road name information and place name information in the map data of the video RAM 18. It is overwritten and stored, and is displayed on the monitor block 7 by the graphic controller 17 (step E5).
[0087]
FIG. 11B illustrates a display screen on the monitor block 7 at this time. In this case, in the memory area corresponding to program number 2 in the message memory area MM of the RAM 12, "Kan Nana Dori" as road name information, "Honan" as place name information, and "Accident occurrence" as traffic information are stored. Then, map data centered on the place name information “Honan” will be created, and the character “accident occurrence” will be displayed as traffic information in the vicinity of the place name “Honan” on the road It will be.
[0088]
After such display, whether or not there is an instruction to select other traffic information message data stored in the memory area of program number 2 in the message memory area MM of the RAM 12 by operating the cursor key of the key block 5 (Step E6), and if there is no instruction, the display processing as shown in FIG. 11B from step E4 is continued again.
[0089]
If it is determined in step E6 that the cursor key has been operated, is the traffic data message data displayed so far stored in the memory area of the program number 2 being the oldest? It is determined whether or not (step E7).
[0090]
If the traffic information message data displayed so far is the oldest, the traffic information message data stored in the memory area of the program number 2 in the message memory area MM is newly displayed. The latest one is read (step E8), and if it is not the oldest, the next traffic information message data is read according to the operation of the cursor key (step E9). The processing relating to the display of the map data from step E3 is repeatedly executed by the message data again.
[0091]
If it is determined that the program selection selected in step E2 is not 2, the selected program number is 3, so that the memory of the corresponding program number 3 in the message memory area MM of the RAM 12 is selected. The latest information is read out from the message data of the area information stored in the area, and the map data centered on the place name position is retrieved from the CD-ROM of the CD block 6 using the place name information (step E10). .
[0092]
Next, the retrieved map data including the place name is developed on the video RAM 18, and a part of the place name centered is displayed on the monitor block 7 by the graphic controller 17 (step E11).
[0093]
Then, the area information in the read message data is developed as character dot pattern data, overwritten and stored in the vicinity of the position corresponding to the corresponding place name in the map data of the video RAM 18, and is stored in the monitor block 7 by the graphic controller 17. Are displayed (step E12).
[0094]
FIG. 11A illustrates a display screen on the monitor block 7 at this time. In this case, assuming that “Chofu” is stored as place name information and “Jindaiji Flower Festival is being held” as area information in the memory area of the corresponding program number 3 in the message memory area MM of the RAM 12, the place name information “Chofu” is stored. The map data centered on is created, and the text “Jindaiji Hana Festival is being held” is displayed near the place name “Chofu”.
[0095]
After such display, whether or not there is an instruction to select message data of other area information stored in the memory area of program number 3 in the message memory area MM of the RAM 12 by operating the cursor key of the key block 5 (Step E13), and if there is no instruction, the display processing as shown in FIG. 11A from step E11 is continued again.
[0096]
If it is determined in step E13 that the cursor key has been operated, is the traffic information message data displayed so far stored in the memory area of the program number 3 being the oldest? It is determined whether or not (step E14).
[0097]
If the traffic information message data that has been displayed so far is the oldest, the local information message data stored in the memory area of program number 3 in the message memory area MM is again included. The latest one is read (step E15), and if it is not the oldest, the next traffic information message data is read according to the operation of the cursor key (step E16). The process relating to the display of the map data from step E10 is repeatedly executed by the message data again.
[0098]
In the process of FIG. 10 described above, the program number that can be selected is only one of 2 and 3. However, the program number is not limited to this, and other programs received by FM character multiplex broadcasting include place name information. If so, the map data can be searched based on the place name information, and the received information linked to the map data can be displayed.
[0099]
Further, in the processing contents shown in FIG. 10, the processing of steps E3 to E9 related to message data of traffic information of program number 2 and the processing of steps E10 to E16 related to message data of regional information of program number 3 are completely separated. However, in the middle, the program number 2 cannot be switched to the process of program number 3 or vice versa, but in reality, it is easy to perform by operations including predetermined cursor keys and the like. Of course, it may be switched.
[0100]
In step C8 in FIG. 6 in the first mode, step D8 in FIG. 8 in the second mode, and step E5 in FIG. 10 in the third mode, all are near the corresponding place names in the map data. The received traffic information has been described as being expanded and displayed in the form of characters, but depending on the content of the traffic information, graphic marks that are pictograms set in advance by the following processing are displayed. May be.
[0101]
That is, FIG. 12 exemplifies the traffic information display process as a subroutine instead of the above steps. At the beginning of the process, there is a possibility that the place name is in the map data outside the range displayed in the first mode, so that the corresponding place name information is displayed in the monitor block 7 in the map data developed in the video RAM 18. It is determined whether or not it is within the range displayed at (Step F1).
[0102]
And if it is within the display range, whether there is only one place name information, that is, whether to specify one point or whether to specify a range between two points Is determined (step F2).
[0103]
If it is determined that there is only one place name information, a graphic mark set in advance corresponding to the contents of the traffic information is retrieved from the ROM 11 and read (step F3).
[0104]
Then, after confirming that the search has been completed (step F4), the searched graphic mark is developed as dot pattern data and overwritten in the vicinity of the corresponding place name (road name information) in the map data of the video RAM 18 to be stored. The graphic controller 17 displays the image on the monitor block 7 (step F5), ends this subroutine, and returns to the original routines.
[0105]
Further, when it is determined in step F1 that the corresponding place name information is out of the range displayed on the monitor block 7 in the map data developed in the video RAM 18, or in step F4 the traffic information is displayed. If it is determined that the graphic mark corresponding to the content could not be retrieved from the ROM 11, the graphic mark cannot be written in the map data being displayed at the same time. The pattern is overwritten and stored near the position of the corresponding place name information or the road name information in the map data of the video RAM 18 and is displayed on the monitor block 7 by the graphic controller 17 (step F6), and this subroutine is finished. Return to the original routine.
[0106]
Further, when it is determined in step F2 that there are two place name information and the traffic information specifies the range between the two points, the same as in step F3, corresponding to the contents of the traffic information. A graphic mark set in advance is retrieved from the ROM 11 and read (step F7).
[0107]
Then, after confirming that the search has been completed (step F8), from the memory area of the program number 2 in the message memory area MM and the road name between or near the two points in the map data developed in the video RAM 18 The read traffic information message data is matched with the road name information of the traffic data to extract a matching portion (step F9), and the graphic mark searched in the range of the road portion of the map data developed in the corresponding video RAM 18 is a dot pattern. The data is continuously developed, overwritten and stored, and is displayed on the monitor block 7 by the graphic controller 17 (step F10). This subroutine is thus completed, and the original routine is returned to.
[0108]
FIG. 14 illustrates a display screen on the monitor block 7 at this time. In this case, “Chuo Expressway” as road name information, “Chofu Takaido” as location name information, and “Upbound traffic 5 km” as traffic information are stored in the memory area of the corresponding program number 2 in the message memory area MM of the RAM 12 Then, for example, in step E5 of FIG. 10 in the third mode, map data centered on the range of place name information “Chofu” and “Takaido” is created, and two place names “Chofu” and “Chuo Expressway” are created. A graphic mark by an arrow indicating a traffic jam is superimposed and displayed in a range indicated by “high well”.
[0109]
In addition, as a graphic mark, for example, a symbol of “Tsuruhashi” representing “under construction”, a “traffic sign” that combines “circle and cross” that expresses “closed” Various things such as symbolized ones can be considered.
[0110]
Also, as shown in FIG. 14, the message data is used as it is at the bottom of the display screen.
"Chuo Expressway Chofu-Takaido Up traffic 5km"
By displaying like this, the display of traffic information by the graphic mark may be supplemented.
[0111]
In the process of step F10, if there are characters “up” and “down” in the traffic information as in the case of FIG. 14, the direction of the graphic mark such as an arrow is controlled according to the contents. To do. Further, when both “up” and “down” are included in the traffic information, a graphic mark such as a bidirectional arrow is used according to the contents.
[0112]
If it is determined in step F8 that the graphic mark corresponding to the contents of the traffic information cannot be retrieved from the ROM 11, the graphic mark cannot be written into the map data displayed at that time. Instead, the character dot pattern of the traffic information is developed and overwritten and stored in the vicinity of the first position of the two corresponding place name information in the map data of the video RAM 18. This is displayed (step F11), and this subroutine is completed as described above to return to each original routine.
[0113]
In the third mode, when the received message is read and displayed, the map data including the place name information matching the place name information in the message is displayed together. Of course, when the desired map data is read and displayed, a message including information matching the place name and road name information in the displayed map data may be displayed together. .
[0114]
In step C14 in FIG. 6 in the first mode and step E12 in FIG. 10 in the third mode, the received area information is developed in the form of characters near the corresponding place name position in the map data. However, it is also possible to display graphic marks that are set in advance by the following processing according to the contents of the area information.
[0115]
That is, FIG. 13 exemplifies the area information display process as a subroutine instead of the above steps. At the beginning of the process, a graphic mark set in advance corresponding to the contents of the area information is retrieved from the ROM 11 and read (step G1).
[0116]
Then, after confirming that the search has been completed (step G2), the searched graphic mark is developed as dot pattern data, overwritten in the vicinity of the corresponding place name information in the map data of the video RAM 18, and stored in the graphic controller 17. Is displayed on the monitor block 7 (step G3), the subroutine is terminated, and the process returns to the original routines.
[0117]
This is because, for example, when “Kanda Festival” (location name information “Kanda”) is received and stored in the memory area of program number 3 in the message memory area MM of the RAM 12 as regional information, the “festival” in the information is used as a keyword. The ROM 11 is searched, and the graphic mark of “fan with the festival characters in the center” is read and overwritten in the vicinity of the place name information “Kanda” in the map.
[0118]
If it is determined in step G2 that the graphic mark corresponding to the contents of the area information cannot be retrieved from the ROM 11, the graphic mark cannot be written in the map data displayed at that time. Instead, the character dot pattern of the area information is overwritten and stored in the vicinity of the position of the corresponding place name information in the map data of the video RAM 18, and is displayed on the monitor block 7 by the graphic controller 17 (step F6). End and return to each original routine.
[0119]
As illustrated in the processing contents of FIGS. 12 and 13 and the display example of FIG. 14, by displaying the contents of the area information on the map using graphic marks instead of characters, the area information can be more visually recognized. In particular, it is possible to facilitate the recognition of the user who is driving the automobile. In this case, detailed information that cannot be expressed by the graphic mark can be supplemented by displaying the character mark together with the graphic mark.
[0120]
In the above-described embodiment, the absolute position is obtained by GPS using an artificial satellite as a means for acquiring the current position. However, the present invention is not limited to this, and similarly, traffic information and area information. Needless to say, the means for obtaining the message is not limited to FM character multiplex broadcasting.
[0121]
【The invention's effect】
As described above in detail, according to the present invention, it is possible to automatically or manually select only necessary information from traffic and local information, etc., and display it in a form that can be easily recognized on a map. A service information receiving apparatus can be provided.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a circuit configuration of an automobile navigation apparatus equipped with an FM character multiplex broadcast receiving apparatus according to an embodiment of the present invention.
FIG. 2 is a diagram illustrating a configuration of a message memory area provided in the RAM of FIG. 1;
FIG. 3 is a diagram illustrating a data structure of traffic information and area information according to the embodiment;
FIG. 4 is a flowchart illustrating basic processing contents according to the embodiment;
FIG. 5 is a flowchart illustrating basic processing contents according to the embodiment;
FIG. 6 is a flowchart illustrating the processing content of a first operation mode according to the embodiment;
FIG. 7 is a diagram illustrating a display screen in the first operation mode according to the embodiment;
FIG. 8 is a flowchart illustrating the processing content of a second operation mode according to the embodiment;
FIG. 9 is a diagram illustrating a display screen in the second operation mode according to the embodiment;
FIG. 10 is a flowchart illustrating processing details of a third operation mode according to the embodiment;
FIG. 11 is a diagram illustrating a display screen in a third operation mode according to the embodiment;
FIG. 12 is a flowchart showing an example of another display processing content subroutine in each of the operation modes according to the embodiment;
FIG. 13 is a flowchart illustrating a subroutine of other display processing contents in the operation modes according to the embodiment;
FIG. 14 is a diagram illustrating another display screen at the time of each operation mode according to the embodiment;
[Explanation of symbols]
1 ... GPS antenna
2 ... GPS block
3. Graphic block
4 ... FM antenna
5 ... Key block
6 ... CD block
7 ... Monitor block
11 ... ROM
12 ... RAM
13 ... CPU
14 ... FM tuner
15 ... FM multiplex decoder
16 ... CPU peripheral circuit gate array (G / A)
17 ... Graphic controller
18 ... Video RAM
MM ... Message memory area
SM ... Own car mark

Claims (16)

Map data storage means for storing map data including character information;
Receiving means for receiving service information including character information;
Map data reading means for reading map data including character information from the map data storage means;
Display means for displaying map data including character information read by the map data reading means;
A match detection means for detecting a match between the character information in the map data displayed on the display means and the character information in the service information received by the receiving means;
A service information receiving apparatus comprising: display control means for displaying on the display means service information including character information whose match is detected by the match detection means . It further comprises current position acquisition means for acquiring position information indicating the current location,
2. The service information receiving apparatus according to claim 1, wherein the map data reading means reads map data including character information from the map data storage means based on the current position information obtained by the current position acquisition means.   3. The display control means for displaying service information including character information that matches the character information in the vicinity of the character information in the map data displayed on the display means. Service information receiver. The coincidence detecting means further comprises means for detecting a coincidence between the character information in the map data in a predetermined range from the current location not displayed on the display means and the character information in the service information received by the receiving means. 4. The service information receiving apparatus according to claim 1, wherein the service information receiving apparatus is a service information receiving apparatus. The display control means displays the service information including the character information in which the coincidence with the character information in the map data displayed on the display means is detected by the coincidence detecting means on the display means in the first mode. And the service information including the character information in which the coincidence with the character information in the map data within a predetermined range from the current location not displayed on the display unit by the match detection unit is detected on the display unit. 5. The service information receiving apparatus according to claim 4, wherein the service information receiving apparatus is displayed in a second mode different from the mode . The text information, place names, place names, or service information receiving apparatus according to any one of claims 1 to 5, characterized in that a road name information. Map data storage means for storing map data including character information;
Receiving means for receiving service information including character information;
Map data reading means for reading map data including character information from the map data storage means;
Display means for displaying map data including character information read by the map data reading means;
Current location acquisition means for acquiring location information indicating the current location;
A match detection means for detecting a match between the character information in the map data in a predetermined range from the current location indicated by the position information acquired by the current position acquisition means and the character information in the service information received by the reception means;
Service information receiving apparatus, characterized in that the service information including the character information a match is detected by the coincidence detecting means equipped with a display control means for displaying on the display means. Road name information acquisition means for acquiring the current road name information as character information is further provided,
The receiving means receives service information including road name information and place name information which are character information,
The coincidence detecting means is
A first coincidence detecting means for detecting the acquired road name information in the road name information acquisition means, a match with the road name information of service in bis information received by the receiving means,
When a match of road name information is detected by the first match detection means, the place name information in the map data displayed on the display means and the place name information in the service information received by the receiving means Second match detection means for detecting a match,
The display control means includes
Service information including the place name information whose match is detected by the second match detection means is displayed on the display means.
8. The service information receiving apparatus according to claim 1, wherein The road name information acquisition means
Current location acquisition means for acquiring location information indicating the current location;
Storage means for storing road name information corresponding to the position information as character information;
9. The service information receiving apparatus according to claim 8 , further comprising: a reading unit that reads out character information from the storage unit based on the current location information obtained by the current location acquisition unit. It further comprises traveling direction acquisition means for acquiring traveling direction information indicating the current traveling direction,
The coincidence detecting means is
Detecting a match between the character information in the map data in a predetermined range of the traveling direction indicated by the traveling direction information acquired by the traveling direction acquisition unit and the character information in the service information received by the receiving unit. The service information receiving apparatus according to claim 1 . Map data storage means for storing map data including character information;
Receiving means for receiving service information including character information;
Map data reading means for reading map data including character information from the map data storage means;
Display means for displaying map data including character information read by the map data reading means;
Traveling direction acquisition means for acquiring traveling direction information indicating the current traveling direction;
A coincidence detecting means for detecting a coincidence between the character information in the map data in the predetermined range of the traveling direction indicated by the traveling direction information acquired by the traveling direction acquiring means and the character information in the service information received by the receiving means. When,
Display control means for displaying on the display means service information including character information whose match is detected by the match detection means;
A service information receiving apparatus comprising: Map data storage means for storing map data including character information;
Receiving means for receiving service information including character information;
Display means for displaying service information including character information received by the reception means and map data including character information stored in the map data storage means;
A match detecting means for detecting a match between the character information in the service information received by the receiving means and the character information in the map data stored in the map data storage means,
The display means is
A service information receiving apparatus for displaying service information including character information received by the receiving means, and map data around the character information whose match is detected by the match detecting means . Said display means, claims and displaying the service information including the character information received by said receiving means, superimposed on the map data in the vicinity of the character information a match is detected by said coincidence detecting means 12. The service information receiving device according to 12 . Storage means for storing a plurality of service information including character information received by the receiving means;
Selecting means for selecting arbitrary service information from a plurality of service information stored in the storage means;
The coincidence detecting means is
Detecting the match between the character information in the service information selected by the selection means and the character information in the map data stored in the map data storage means;
The display means is
14. The service information receiving apparatus according to claim 12, wherein the service information selected by the selecting means and the map data around the character information where the match is detected by the match detecting means are displayed . It further comprises pictogram storage means for storing pictograms corresponding to the text information,
Said display means, the service information received according to any one of claims 1 to 14, wherein the displaying the pictogram corresponding to the character information included in the service information which the receiving means receives reads from the pictograph storage means apparatus. The receiving means includes means for receiving service information including a plurality of character information included in the map data,
The display means displays a pictogram corresponding to the service information from the pictogram storage means between character information in the map data stored in the map data storage means that matches the plurality of character information received by the receiving means. 16. The service information receiving apparatus according to claim 15, wherein the service information receiving apparatus is read and displayed.

Images