JP2001074476A - Travel position display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide only the useful facility information for a driver by limiting an area for facilities acquired through the Japanese syllabary retrieval, related to a travel position display device which allows facility retrieval by the Japanese syllabary input. SOLUTION: Using a Japanese syllabary input means 103 and a Japanese syllabary retrieval means 104, a facility corresponding to inputted characters is retrieved, and a facility retrieving means 106 acquires, according to the retrieval range specified by a retrieval range specifying means 105, only those facilities present in the retrieval range, based on the Japanese syllabary retrieval result. The acquired facilities are displayed on a display means 108 as a listing. Thus, a driver can refer to only the facility information which is processed with the Japanese syllabary retrieval and area limitation.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a travel position display device for displaying a current position of a car or the like on a display device together with a map, and more particularly to a device for displaying a facility by searching for a facility by inputting 50 sounds.

[0002]

2. Description of the Related Art FIG. 7 shows an outline of a conventional vehicle-mounted traveling position display device. In FIG. 7, the direction sensor 1 is
An optical gyro that detects the relative running direction of the vehicle is used. The distance sensor 2 generates a pulse according to the number of rotations of the wheel. The various sensor signals 3 are ON / OFF signals of a brake switch, a parking switch, and the like, a power supply voltage monitoring signal, and the like. The sensor signal processing unit 4 processes sensor signals from the direction sensor 1, the distance sensor 2, and the like. GPS
(Global Positioning System) The receiver 5 receives and calculates radio waves transmitted from a plurality of satellites,
The position (latitude, longitude) of the receiving point is obtained. CD
-ROM drive 6 is a CD on which map data is recorded-
This is for reading map data from the ROM 7. The display / operation unit 8 installed in the vehicle interior is a liquid crystal display 8A that displays a map and the current traveling position, direction, and the like of the automobile.
And a touch panel 8B provided on the front surface of the liquid crystal display 8A. The touch panel 8B is displayed on the liquid crystal display 8A with a switch for instructing enlargement or reduction of a display map, a switch for instructing a route search, and the like. It has a switch to select the destination from the place names. The device main body 9 is arranged in a trunk room or the like. Next, the configuration of the apparatus main body 9 will be described.

[0003] The apparatus body 9 arranged in the trunk room
Is a CPU (Central Processing Unit) 10 that performs various calculations,
A ROM (Read Only Memory) 11 in which programs for various calculations performed by the CPU 10 are stored, data from the azimuth sensor 1, the distance sensor 2, the GPS receiver 5, the CD-ROM drive 6, etc., the calculation results in the CPU 10, etc. A memory (DRAM) 12 for storing, a backup memory (SRAM) 13 for holding necessary data even when power supply to the apparatus main body 9 is stopped, and characters and symbols displayed on the liquid crystal display 8A (Kanji, font ROM) 14 storing patterns such as, an image processor 15 for forming a display image based on map data, current position data of the own vehicle, and the like;
(VRAM) 16 that stores map data, current position data and kanji, kanji such as town names and road names output from the font ROM 14, and fonts synthesized from the font ROM 14 and stores an image to be displayed on the liquid crystal display 8A.
An RGB conversion circuit 17 for converting output data of the RAM 16 into a color signal and outputting the color signal to the liquid crystal display 8A;
A communication interface 18 for communicating with the PS receiver 5, the CD-ROM drive 6, the display / operation unit 8, and the like is provided.

Next, the operation of the traveling position display device configured as described above will be described. 7, the output of the direction sensor 1 and the output of the distance sensor 2 are sent to the CPU 10 via the sensor processing unit 4. The CPU 10 calculates the current position of the vehicle, and obtains the latitude and longitude of the current position. Further, based on the data from the GPS receiver 5, the current position is corrected. The map data of the unit corresponding to the current position is obtained by the CD-ROM drive 6 based on the current position obtained in this manner.
The map data is read from M7 and stored in the memory (DRAM) 12 via the communication interface 18. Part of the map data stored in the DRAM 12
The data is read by the CPU 10, converted into image data by the image processor 15, and written into the image memory 16.
The image data stored in the image memory 16 is converted into a color signal by an RGB conversion circuit 17, sent to the liquid crystal display 8A, and a map of a predetermined range centering on the current position is displayed. In the map data read from the DRAM 12, patterns corresponding to character codes and symbol codes are read from kanji and the font ROM 14, and characters such as place names and symbols such as schools are displayed on the liquid crystal display 8A together with the map. You. Further, the current position displayed on the liquid crystal display 8A is sequentially changed based on the traveling speed and traveling azimuth sequentially obtained as the vehicle travels.

Next, a facility name search function in a conventional example will be described with reference to FIG. In FIG. 8, step S
In step 1, the driver inputs one character in Japanese syllabary for the name of the facility to be actually searched. In response, in step S2, facility data is read from the CD-ROM 7, and a facility corresponding to the input character is searched. Thereafter, in step S3, it is determined whether or not the facilities are displayed in a list. It is determined that the list is displayed when the driver performs the list display operation or when the number of corresponding facilities is X or less. If the above does not apply, the process returns to step S1, and the continuation of the facility name is performed by inputting the Japanese syllabary. If it is determined in step S3 that the facility list is to be displayed, the facility list is displayed on the display in step S4. The facilities displayed here are facilities searched over a nationwide range. FIG. 9 shows a display example of the facility list on the display 8A. As a result of the Japanese syllabary search for the input character 27 of "exposed" by the driver, a facility list 28 corresponding to "exposed" is shown in the figure. Will be displayed. Thereafter, in step S5, the driver specifies an arbitrary facility from the facility list, and the process proceeds to step S6, where information and a map of the optional facility are displayed.

In step S2, the CD-RO
The data read from M7 has a structure as shown in FIG. As a procedure for performing the Japanese syllabary search, first, for the first input character, a corresponding character is searched from the first character table 20 of the Japanese syllabary search data 19. Thereafter, each time a character is input, the second character table and the third character table are referred to, and a corresponding character search is sequentially performed. Finally, when the character input is completed, the reading kana information 22 and the word information 23 are read out with reference to the corresponding character information 21. The reading kana information 22 includes a pointer to facility information in which the input character matches the reading kana, and the word information 23 includes a pointer to facility information in which the input character is included as a word in the facility name. . By using these, it is possible to obtain the facility information 24 as the Japanese syllabary search result.

[0007]

However, in the above-mentioned conventional example, since the search range after the input of the Japanese syllabary is performed nationwide, the information becomes extensive for the driver, and it is difficult to find useful information. .

The present invention solves the above-mentioned conventional problems, and provides an excellent traveling position display device capable of easily searching useful information for a driver for facility information obtained by Japanese syllabary search. Things.

[0009]

A traveling position display device according to the present invention comprises a current position calculating means for obtaining a current position of a vehicle, a Japanese syllabary input means for inputting a facility name to be searched, and a Japanese syllabary input means. Search means for searching for a facility having the same name from the facility name input by the user, search range designating means for limiting the search area range of the facility to be searched, and the facility name searched by the Japanese syllabary search means. A facility search unit for searching for a facility existing within the range input by the search range designating unit; and a searched facility on the map read in correspondence with the current position obtained by the current position calculation unit. And a display means for displaying the current position of the vehicle together with the current position of the vehicle. With this configuration, it is possible to easily retrieve useful information for the driver.

Further, the traveling position display device of the present invention is provided with a current position calculating means for obtaining the current position of the vehicle, a 50-sound input means for inputting a facility name to be searched, and a 50-sound input means. Japanese syllabary search means for searching for a facility having a matching name from a facility name, and a facility for searching for a facility existing around the current position obtained by the current position calculating means among the facilities searched by the Japanese syllabary search means It has a configuration including a search unit, and a display unit that displays the searched facility together with the current position of the vehicle on a map read out corresponding to the current position obtained by the current position calculation unit. . With this configuration, it is possible to easily retrieve useful information for the driver.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. (Embodiment 1) FIG. 1 shows a schematic configuration of a traveling position display device according to Embodiment 1 of the present invention. The traveling position display device includes a map data reading means 101 for reading map data recorded on a recording medium such as a CD-ROM or a DVD-ROM, a current position calculating means 102 for obtaining a current position of a vehicle, a facility name to be searched. , A Japanese syllabary input unit 103 for inputting a name, a Japanese syllabary search unit 104 for searching for a facility whose name matches from the facility name input by the Japanese syllabary input unit 103, and a search area range for the facility to be searched. Search range specifying means 105 and 50
Among the facilities searched by the sound search means 104, a facility existing within the range input by the search range designating means 105 is searched, or a current position calculation means 102 of the facilities searched by the Japanese syllabary search means 104 finds. Facility search means 106 for searching for facilities existing around the current location
And a route search means 107 for searching for an optimum route from the input destination, and a searched facility, a searched route, etc., on a map read by the map data reading means 101, a current position calculating means 102 And a control means 109 such as a CPU for controlling the entire apparatus.

Next, the operation of the traveling position display device configured as described above will be described. When the power of the apparatus is turned on, the current position calculating means 102 calculates the current position, and the control means 109 reads a map corresponding to the position from the map data reading means 101 and displays the map on the display means 108 together with the own vehicle position. . If the driver uses the route searching means 10
When a destination is input by using 7, the optimum route to the destination is calculated and displayed on the map displayed on the display means 108. Here, it is assumed that the driver wants to search for a required facility, for example, a restaurant with a parking lot to have lunch. FIG. 2 shows a processing flow of the Japanese syllabary search according to the first embodiment. First, steps S101 to S104
Up to step S101, as in the conventional case shown in FIG.
Then, the driver inputs one character with the Japanese syllabary from the Japanese syllabary input unit 103 for the facility name to be actually searched. In response to this, in step S102, the control means 109 reads facility data from the map data reading means 101, and the Japanese syllabary search means 104 searches for a facility corresponding to the input character. Thereafter, in step S103, it is determined whether or not the facilities are displayed in a list. It is determined that the list is displayed when the driver performs the list display operation or when the number of corresponding facilities is X or less. If the above does not apply, step S10
Returning to 1, the continuation of the facility name is performed by inputting the Japanese syllabary.
If it is determined in step S103 that the facility list is to be displayed, the facility list is displayed on the display of the display unit 108 in step S104. The facilities displayed here are facilities searched over a nationwide range.

Next, in step S105, it is determined whether or not to search for facilities located around an arbitrary position with respect to facilities searched in the whole country. This determination method is based on whether or not the driver has performed an operation for performing a search around an arbitrary position. If it is determined in step S105 to perform a search around an arbitrary position,
The process proceeds to step S106, and if it is determined that the search around the arbitrary position is not performed, the process proceeds to step S109. In step S106, to limit the area to be searched,
The search area is specified by the search range specifying means 105. FIG. 3 shows a search area designation screen according to the present embodiment. Here, as an example, a search area is specified by preparing a prefecture name list 112 for the input characters 111 and the driver specifying an arbitrary prefecture from the list. After specifying the search area, step S
In 107, the facility search means 106 searches the list displayed in step S104 for facilities existing in the designated prefecture. It should be noted that whether or not the facility information exists in the designated prefecture is determined by the administrative area code 26 included in the facility information 24 of the map data shown in FIG. 10 and the prefecture designated by the driver. This is done by comparing with the administrative area code. Thereafter, the process proceeds to step S108, and the corresponding facility list 113 retrieved in step 107 is displayed on the display means 108 as shown in FIG. The facility list displayed here has a name of 50
This is a list of only facilities that match the sound input and exist in the designated prefecture. Thereafter, in step S109, the driver specifies an arbitrary facility from the facility list, and the process proceeds to step S110, where information on the arbitrary facility and a map are displayed.

(Embodiment 2) FIG. 5 shows a processing flow of a Japanese syllabary search according to Embodiment 2 of the present invention. Since the configuration of the traveling position display device itself is the same as that shown in FIG. 1,
Description of the configuration is omitted. In FIG. 5, steps S201 to S205 are the same as steps S101 to S105 of the first embodiment. Step S
At 206, after the current position is acquired by using the current position calculation processing means 102, the process proceeds to step S207, and the facilities located within Nkm from the current position in the list displayed at step S204 are searched for by the facility search means 106. Search. The specification of this range can be arbitrarily performed by the search range specifying means 105. To determine whether it is within the search range,
This is performed by comparing the latitude and longitude 25 of the facility included in the facility information 24 in FIG. 10 with the latitude and longitude of the acquired current position of the vehicle. Here, it is assumed that N = 5 as an example. Thereafter, the process proceeds to step S208, and step S20
The corresponding facility list searched in step 7 is displayed on the display means 108. The facility list displayed here has a name of 50
This is a list of only facilities that match the sound input and are present around the current location. FIG. 6 shows a display example of the facility list on the display of the display means 108.
As a result of the Japanese syllabary search for the input character 121 of “exposed” by the driver, a facility list 122 corresponding to “exposed” is displayed as shown in the figure. The facility list 122 is different from the conventional example in that the facilities are displayed in the order from the current position and the distance from the current location to each facility is displayed. Then step S2
At 09, the driver specifies an arbitrary facility from the facility list, and the process proceeds to step S210 to display information on the arbitrary facility and a map.

[0015] In the second embodiment, the search range is within Nkm from the current position or an arbitrary prefecture. However, other than that, the range within Nkm is centered on a point arbitrarily designated by the driver. The same can be applied to a case where the area is set as an area or a case where the search area is limited to a municipal area that can be identified by the administrative area code.

[0016]

As described above, according to the present invention, a facility is searched by the Japanese syllabary input means and the search range is limited by the range designating means, whereby the number of facilities corresponding to the search is limited, and facilities useful for the driver are provided. This has the effect that information can be easily searched.

[Brief description of the drawings]

FIG. 1 is a schematic block diagram of a traveling position display device according to an embodiment of the present invention.

FIG. 2 is a flowchart of a facility search process based on a Japanese syllabary input according to the first embodiment of the present invention.

FIG. 3 is a screen diagram of a search area display example on a display according to the first embodiment of the present invention.

FIG. 4 is a screen diagram of a display example of a facility search result on a display according to the first embodiment of the present invention.

FIG. 5 is a flowchart of a facility search process based on a Japanese syllabary input according to the second embodiment of the present invention.

FIG. 6 is a screen diagram of a display example of a facility search result on a display according to the second embodiment of the present invention.

FIG. 7 is a block diagram showing a configuration of a traveling position display device in a conventional example.

FIG. 8 is a flowchart of a facility search process based on Japanese syllabary input in a conventional example

FIG. 9 is a screen diagram showing a display example of a facility search result on a display in a conventional example.

FIG. 10 is a data format diagram of a Japanese syllabary index in the traveling position display device.

[Explanation of symbols]

 Reference Signs List 1 azimuth sensor 2 distance sensor 3 various sensor signals 4 sensor signal processing unit 5 GPS receiver 6 CD-ROM drive 7 CD-ROM 8 display / operation unit 8A display 8B touch panel 9 device body 10 CPU 11 program ROM 12 DRAM 13 SRAM 14 kanji・ Font ROM 15 Image processor 16 VRAM 17 RGB conversion 18 Communication interface 19 Japanese syllabary search data 20 First character table 21 Character information 22 Reading kana information 23 Word information 24 Facility information 25 Latitude / longitude 26 Administrative area code 27 Input character 28 Facility list Reference Signs List 101 Map data reading means 102 Current position calculating means 103 Japanese syllabary input means 104 Japanese syllabary searching means 105 Search range specifying means 106 Facility searching means 107 Route searching means 108 Display unit 109 control unit 111 input character 112 prefecture name list 113 Property list 121 input character 122 Property list

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) G06F 15/403 320Z 350A F-term (Reference) 2C032 HB22 HC05 HC08 HD03 2F029 AA02 AB01 AB07 AB13 AC02 AC09 AC13 AC16 5B075 ND07 NK02 PP12 PP22 PQ02 PQ69 QM02 QP05 UU14 5H180 AA01 BB13 CC12 FF04 FF05 FF22 FF32 FF38

Claims (2)

[Claims] 1. A current position calculating means for obtaining a current position of a vehicle, a Japanese syllabary input means for inputting a facility name to be searched, and a facility having the same name as the facility name inputted by the Japanese syllabary input means. Japanese syllabary search means to be searched, search range designating means for limiting the search area range of the facility to be searched, and within the range inputted by the search range designating means among the facilities searched by the Japanese syllabary search means. Facility search means for searching for existing facilities, and display means for displaying the searched facilities together with the current position of the vehicle on a map read out corresponding to the current position obtained by the current position calculation means. Travel position display device. 2. A current position calculating means for obtaining a current position of a vehicle, a Japanese syllabary input means for inputting a facility name to be searched, and a facility having a name matching from the facility name inputted by the Japanese syllabary input means. Japanese syllabary searching means for searching, facility searching means for searching for facilities existing around the current position obtained by the current position calculating means among the facilities searched by the Japanese syllabary searching means, A travel position display device comprising: display means for displaying the current position of the vehicle together with the current position of the vehicle on a map read in correspondence with the current position obtained by the current position calculation means.