JP4618523B2 - Vehicle navigation device and storage medium - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a vehicle navigation apparatus and a storage medium having a voice recognition function.
[0002]
[Prior art]
In a conventional vehicle navigation device, when traffic information such as traffic jam information is received by an information terminal such as VICS, it is determined whether there is a relationship with the current route, and if there is a relationship, the navigation system searches for a detour. And is being provided to users.
In addition, in users who do not have information terminals such as VICS, or in areas where such information is not provided, the user himself / herself confirms the traffic information using a route list, map scroll, point search function, etc. .
[0003]
[Problems to be solved by the invention]
For example, VICS and other external information acquisition functions that perform necessary processing on relevant traffic information on the current route are written on an information display bulletin board installed on the road, for example. It is unclear whether the contents etc. are taken into account, and it is impossible to deal with the case where it is inconsistent with information such as VICS.
In addition, for users who do not have information terminals such as VICS, or in areas where such information is not provided, whether or not each point overlaps the route using the route list, map scrolling, or point search function is manually and visually checked. You have to confirm with.
The present invention is to solve the above-mentioned problems, and the user reads out the contents of traffic information written on an information bulletin board installed on the road and imports it by a voice recognition function. The purpose is to provide a user with detailed information regarding the information.
[0004]
The present invention relates to a vehicle navigation apparatus that searches for a route to a destination and provides guidance along the searched route, and creates current position detection means for detecting the current position of the vehicle and route information related to the searched route. Route information creating means, route information registering means for registering voice recognition data of the route information created by the route information creating means in a speech recognition engine, voice information input means for inputting voice information, and the voice information Determination means for determining whether the voice information input by the input means matches the voice recognition data of the registered route information, and guidance for controlling to perform guidance based on the determination result by the determination means Control means, and the route information registration means is detected by the current position detection means when a voice recognition switch is pressed by a user. And registers the data for speech recognition of the route information in from above the current position that was.
[0005]
The present invention also provides a storage medium containing a program readable by a vehicle navigation apparatus that searches for a route to a destination and guides along the searched route, and detects the current position of the vehicle by the current position detection means. A step of detecting, a step of generating route information relating to the searched route, and a voice recognition of the generated route information ahead of the current position detected by the current position detecting means when the voice recognition switch is pressed by the user. Built-in program for causing the navigation device to execute a process comprising the steps of registering data in the speech recognition engine, and determining whether or not the input speech information matches the registered speech recognition data. It is characterized by that.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a diagram showing a configuration example of a navigation apparatus according to the present invention.
An input device 1 for inputting information related to route guidance, a current position detecting device 2 for detecting information related to the current position of the host vehicle, navigation data necessary for route calculation, and display / audio guidance data and programs required for route guidance Information storage device 3 in which (application and / or OS) and the like are recorded, display / voice guidance processing necessary for route search processing and route guidance, central processing device 4 for controlling the entire system, information on vehicle travel For example, an information transmitting / receiving device 5 that transmits / receives road information and traffic information, detects information related to the current position of the vehicle, and transmits / receives information related to the current position, and an output device 6 that outputs information related to route guidance. It is composed of
[0007]
The input device 1 has a function of inputting a departure point and a destination, and instructing the central processing device 4 to perform a navigation process according to the driver's will. As a means for realizing the function, a remote controller such as a touch switch or jog dial for inputting a destination by an address, a telephone number, coordinates on a map, or requesting route guidance can be used. . Further, the present invention is provided with a device for performing dialogue by voice input, functions as a voice input device, and recognizes a voice when the user reads out the contents written on the information bulletin board installed on the road. It is used as data for determining whether or not there is a relationship with the current route. A recording card reader for reading data recorded on an IC card or a magnetic card can also be added. In addition, an information center that stores data necessary for navigation and provides information via a communication line at the request of the driver, and a portable type having data such as map data, destination data, simple maps, and building shape maps A data communication device for exchanging data with an information source such as an electronic device can be added.
[0008]
The current position detection device 2 obtains the current position information of the vehicle using a satellite navigation system (GPS), an absolute direction sensor that detects the traveling direction of the vehicle in an absolute direction by using, for example, geomagnetism, a vehicle For example, a steering sensor, a relative azimuth sensor that detects the relative azimuth by using a gyro sensor, for example, a distance sensor that detects the travel distance of the vehicle from the rotational speed of the wheel.
[0009]
The information storage device 3 is an external storage device that stores navigation programs and data, and includes, for example, a CD-ROM, a DVD-ROM, or the like. The program is a program for performing processing such as route search, the processing program shown in the flowchart described in this embodiment, the display output control necessary for route guidance, and the relationship between the information acquired by voice input and the current route. In order to perform voice output control necessary for voice guidance, data that is a key word including a program for discriminating and providing a place name necessary for the program, words and sentences that are key for voice talkback, etc. The program and the data necessary for it are stored. Stored map data includes data used for route search (intersection data, road data, traffic regulation data, route display data, destination data, registration point data, genre-specific data, etc.), and other guidance / display data All of the necessary data for the navigation device (including guidance data used for route guidance, display data used to display a map, map matching data used to detect the current position, etc.) Is stored. The present invention can also be applied to a type in which only data is stored in a CD-ROM and the program is stored in a central processing unit.
[0010]
The central processing unit 4 serves as a key for a route search process, a process for determining the relationship between information captured by voice input and a searched route, a place name on the route, and a voice talkback key. CPU for performing various arithmetic processes in addition to processing for registering data such as words and sentences, processing for drawing a guidance map, output control of route guidance information, control of information output to the output device, information storage device 3 Flash memory for reading and storing programs from the CD-ROM, ROM for storing programs for checking and updating flash memory (program reading means), set point coordinates of destination, road name code No. The RAM is a RAM that temporarily stores searched route guidance information and the like and data being processed. In addition, although not shown in the figure, the information storage device 3 performs dialogue processing by voice input from the input device 1 or search / discrimination processing based on voice input data, or based on a voice output control signal from the CPU. A speech processor that synthesizes speech, phrases, single sentences, sounds, etc. read out from the speech, converts them into analog signals and outputs them to a speaker, a communication interface for exchanging input / output data by communication, and a current position detection device 2 is provided with a sensor input interface for capturing the sensor signal 2 and a clock for entering the date and time in the internal diagnosis information. Note that a program for performing the above-described update processing may be stored in an external storage device.
[0011]
The program according to the present invention and other programs for executing navigation may all be stored in a CD-ROM which is an external storage medium, or a part or all of these programs may be stored in a ROM on the main body side. Good. Various navigation functions are realized by inputting data and programs stored in the external storage medium as external signals to the central processing unit of the navigation apparatus main body and performing arithmetic processing.
[0012]
The navigation device of the present invention has a relatively large capacity flash memory for reading a program from a CD-ROM of an external storage device as described above, and a small capacity storing a program for starting up a CD (program reading means). Built-in ROM. The flash memory is a non-volatile storage means that retains stored information even when the power is turned off. Then, as a CD start-up process, a program of ROM that is a program reading means is activated and the program stored in the flash memory is checked, and the CD management information of the CD-ROM of the information storage device 3 is read. The program loading process (update process) is performed based on this information and the state of the flash memory.
[0013]
The information transmitter / receiver 5 uses a satellite navigation system (GPS) to obtain current position, date, time information, etc., and obtains traffic information, etc. using FM multiplex broadcasting, radio wave beacons, optical beacons, etc. By using a VICS information receiving device, a mobile phone, a personal computer, etc., a data transmitting / receiving device for bidirectionally communicating information with an information center (for example, ATIS) and other vehicles is used.
[0014]
The output device 6 has a function of outputting guidance information by voice and / or a screen when the driver needs it, and printing out data subjected to navigation processing by the central processing unit 4. For this purpose, input data is displayed on the screen, a display that displays a route guidance screen, a printer that prints out data processed by the central processing unit 4 or data stored in the information storage unit 3, and voice guidance for route guidance. A speaker for output is provided.
[0015]
The display is composed of a simple liquid crystal display or the like, and an enlarged intersection screen, an enlarged branch screen based on map data and guidance data processed by the central processing unit 4, a plurality of searched routes, each route Information about the destination, destination name, time, distance, direction arrow, anthropomorphic character image, etc. are displayed. Since the image data sent to the display is binary image data (bitmap data), a communication line used for serial communication or the like is used instead of a dedicated image signal line. A communication line can also be used. The display is provided with a memory that temporarily holds bitmap data.
[0016]
This display is provided in an instrument panel in the vicinity of the driver's seat, and the driver can check the current location of the host vehicle and obtain information on the route from now on by looking at the display. Although not shown in the figure, a tablet including a touch panel, a touch screen, etc. may be used on the display screen, and the point input, road input, etc. can be performed by touching the screen or tracing the screen. Good.
[0017]
The flow of the entire navigation apparatus system of the present invention will be described. When a program is read from the information storage device 3 to the central processing unit 4 and a route guidance program is started, the current position detection device 2 detects the current position. In addition to displaying the map around the current position, the name of the current position and the like are displayed. Next, set the destination using the target name such as place name and facility name, phone number and address, registration point, road name, etc., search the route from the departure position to the destination, and guide the selected route As described above, guidance along the route is performed while tracking the current position by the current position detection device 2. And if traffic information is written on a bulletin board for information etc. installed on the road while traveling, when the user reads this traffic information, it is recognized as voice and its contents are taken in as traffic information data, It is determined whether there is a relationship with the current route, and the result is provided to the user. The user can use the information as information for determining whether to keep the current route or to change the route according to the information provided.
[0018]
Next, a system for assisting the user's driving using the voice recognition function will be described in detail.
FIG. 2 shows an information bulletin board installed on the road.
▲ 1 ▼ 2 km faulty car driving attention ▲ 2 ▼ Ashigara SA ~ Oi Matsuda construction driving caution ▲ 3 ▼ Yokohama Machida IC ~ Yoga IC 20 km jam
Suppose it is written as Assuming that the route set at this time is a route passing the Tomei Expressway as shown in FIG. 3 at Atsugi IC and passing through National Route 248 and the current position is in front of Ashigara SA, this route continued In this case, it is influenced by the above (1) to (2). However, if you are unfamiliar with this route, it is not clear whether the route overlaps with (1) to (3) above, use the route list, map scroll, point search function, etc. You have to pull out the map and examine it.
[0019]
In the present invention, when the above (1) to (3) written on the information bulletin board are read out, the voice information is voice-recognized, and the recognized information is compared with the names of places on and around the route ahead of the current location. Is done. For this purpose, in the central processing unit 4 or the information storage device 3 in FIG. 1, data for reading guidance information including the names of places on or around the route is registered. In the example shown in the figure, reading data such as Ashigara SA, Oi Matsuda, Atsugi IC, National Route 248, etc. are registered. Then, it is determined whether or not the voice information (1) to (3) read out by the driver or the passenger is related to the data related to the reading of the registered route information, and the result is voice-synthesized and output. Therefore, accurate information can be obtained even if the driver's car and the passenger are not familiar with the route.
[0020]
FIG. 4 is a diagram showing a processing flow for determining and outputting the presence / absence of the relationship between the voice information captured using the voice recognition function and the route information.
When a destination is input, route search is performed (steps S1 and S2), and route information data is created (step S3). In this example, data on points on or around the route such as intersection names, interchange names, service area names, road names, landmark names on the route is acquired from the guidance data. Then there are Ashigara SA, Oi Matsuda, Atsugi IC, and National Route 248. Next, when the user presses the voice recognition switch to start up the voice recognition system (step S4), data such as a place name ahead of the current position on the route is retrieved and acquired from the route information data (step S5). Data for voice recognition of information is registered in a recognition engine (a program for performing voice recognition processing stored in the information storage device 3 in FIG. 1 or read into the central processing unit 4) (step S6). Next, basic words used in traffic information and the like are registered as recognition words in the recognition engine (step S7). The recognition word is a general word that is likely to be used for traffic information regardless of the route, such as construction, crosswind, driving attention, traffic jam, and 2 km ahead. Next, a part or all of the contents written on the information bulletin board or the electronic bulletin board, or the utterance voice reading out the word is taken in (step S8). It is determined whether or not the captured utterance voice information is a word registered in the recognition engine (step S9). If it is a registered word, it is determined that there is a relationship, and a talkback that conveys that fact, for example, “information on route” If there is detailed information (location, map in the vicinity, distance to it, required time, estimated time of passage, etc.), a notification to that effect is sent (step S10). Step S11). This notification may be a screen display or a speech synthesis output. Alternatively, a detour may be searched. If it is not a registered word, it is determined that there is no relationship, and a talkback to that effect, for example, “no relationship with the route” is synthesized and output (step S12).
[0021]
【The invention's effect】
As described above, according to the present invention, the information written on the information bulletin board installed on the road can be classified as to whether the information is related to the current route. Conventionally, after the user grasps the information on the road, it is checked whether the information is related to the current route by manual operation such as map scrolling, etc., but the burden on the user is reduced by using voice recognition. can do.
Furthermore, according to the present invention, since the route information ahead of the current position on the route is registered in the speech recognition engine, only necessary information can be efficiently searched.
[Brief description of the drawings]
FIG. 1 is a diagram showing a configuration example of a navigation device according to the present invention.
FIG. 2 is a diagram showing an information display bulletin board installed on a road.
FIG. 3 is a diagram showing a traveling route.
FIG. 4 is a diagram for explaining a driving support flow by a voice recognition function;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Input device, 2 ... Current position detection device, 3 ... Information storage device, 4 ... Central processing unit, 5 ... Information transmission / reception device, 6 ... Output device

Claims (8)

In a vehicle navigation apparatus that searches for a route to a destination and provides guidance along the searched route,
Current position detecting means for detecting the current position of the vehicle;
Route information creation means for creating route information about the searched route;
Route information registration means for registering voice recognition data of the route information created by the route information creation means in a voice recognition engine;
Voice information input means for inputting voice information;
Determination means for determining whether or not the voice information input by the voice information input means matches the voice recognition data of the registered route information;
Guidance control means for controlling to perform guidance based on the judgment result by the judgment means, and the route information registration means is configured to detect the current position detected by the current position detection means when a voice recognition switch is pressed by a user. A vehicle navigation apparatus for registering voice recognition data of route information ahead of a position . The guidance control unit is configured to input the voice information input by the voice information input unit when the determination unit determines that the voice information input by the route information registration unit matches the voice recognition data of the route information registered. The voice information is controlled so as to provide guidance that the voice information is related to the searched route, and the voice information input by the voice information input means is voice recognition data of the route information registered by the route information registration means; 2. The vehicle navigation apparatus according to claim 1 , wherein when the judgment means judges that they do not match, control is performed so as to provide guidance that the inputted voice information is not related to the searched route. . The guidance control unit is configured to input the voice information input by the voice information input unit when the determination unit determines that the voice information input by the route information registration unit matches the voice recognition data of the route information registered. 3. The vehicle navigation apparatus according to claim 1, wherein control is performed so that detailed information is guided based on voice information and the registered route information. 4. The vehicle navigation apparatus according to claim 3 , wherein the detailed information is a map near a point on the searched route. 4. The vehicle navigation apparatus according to claim 3 , wherein the detailed information is a distance from a current position detected by the current position detecting means to a point on the searched route. 4. The vehicle according to claim 3 , wherein the detailed information is a required time from the current position detected by the current position detecting means to a point on the searched route or an estimated passing time of the point. Navigation device. The route information includes at least the searched intersection name on the route, Intachi engine name, service area names, street names, or vehicle navigation as set forth in any one of claims 1 to 3, wherein the landmark name apparatus. In a storage medium containing a program readable by a vehicle navigation device that searches for a route to a destination and guides along the searched route,
Detecting the current position of the vehicle by the current position detecting means;
Creating a route information on the searched route,
If the voice recognition switch is pressed by the user, the step of registering the data for speech recognition of the route information created in the prior detected current position at the current position detection means to the speech recognition engine,
The step of the voice information inputted performs guidance to determine whether to match the registered speech recognition data,
A storage medium containing a program for causing a navigation device to execute processing consisting of:

Images