JPH03291522A - Vehicle destination guiding system - Google Patents

Abstract

PURPOSE:To miniaturize on-vehicle facilities by obtaining position information on a destination, which uses the latitude and longitude when the mark of the position of the destination of a vehicle superposingly displayed on a map, at a mobile station from a base station through a radio channel. CONSTITUTION:When the switch 20 of the on-vehicle facilities is depressed, a radio wave Wc is sent from an antenna 16 through a transmitter-receiver 18 and received by a transmitter-receiver 42 through the antenna 40 of radio station facilities B for destination guidance. When the driver sends destination information on a building, etc., at the destination through a microphone 24, the transmitter-receiver 18 sends a radio wave Wc wherein the talking contents are modulated through the transmitter- receiver 18 and a microphone 16 and the radio wave is sent to an operator as a voice through the antenna 40, transmitter-receiver 42, and speaker 44 of the facilities B. When the operator inputs the destination information on a keyboard 50, a retrieval part 48 retrieves the longitude and latitude corresponding to the destination information and they are inputted to a control part 28 through the transmitter-receiver 42, antennas 40 and 16, and transmitter-receiver 18. The control part 28 displays an image so that the mark indicating the position of the destination is superposed on the map.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides vehicle destination guidance in which marks indicating the position of the own vehicle and the position of the destination are displayed superimposed on a road map, etc. displayed as an image. Regarding the system, - In detail, it includes a mobile station equipped with vehicle-mounted equipment equipped with a positioning device, and a purpose that stores location information of the destination in latitude and longitude corresponding to destination information such as buildings or address. The base station has a base station equipped with radio station equipment for location guidance, and in response to an inquiry from a mobile station regarding destination information, the base station uses a wireless line (communication line) between these stations to provide information on the destination such as latitude and longitude. In addition to searching for location information, the obtained destination location information is transmitted to the mobile station via a wireless link, and the mobile station displays a mark related to the transmitted destination location information and a mark of the positioning point. By displaying images on the read-out map, there is no need to install a storage device that stores the location information of the destination, which requires a huge amount of storage capacity, in the on-vehicle equipment, making it easier to downsize the on-vehicle equipment. This invention relates to a vehicle destination guidance system in which an image of a destination position mark is easily displayed while driving without requiring the driver to operate an operation button, and the convenience thereof is improved. .

[Background Art] Recently, navigation devices that are mounted on vehicles and are intended to improve the convenience of road driving for drivers are being used.

This navigation device uses the well-known GPS (Global
Arrows related to positional information such as latitude and longitude of the vehicle as determined by a positioning device such as Al Positioning System) and a reserved road map are displayed as images on a display such as a CRT. Furthermore, an X mark is superimposed and displayed on the display image of the CRT or the like at the position (location) of the destination in the display image, and when driving, the
In other words, it facilitates confirmation of the road on which the user is traveling or selection of another road.

In this case, when setting the X mark at the position (location) of the destination, the user operates the XY mark button switch (XY press button switch) of the setting section provided in the navigation device.

By using such a navigation device, the driver can easily visually recognize the location of his/her own vehicle on the road map, as well as the location of the destination. This makes it easier to select roads and contributes to safe driving.

[Problems to be Solved by the Invention] However, in the navigation device according to the above-mentioned conventional technology, a desired road map is searched for from stored road maps and displayed as an image, and then the driver
Click the create button to add a mark, such as an X mark, to the location of the destination on the image-displayed road map and display the image. For this reason, while driving, the driver is forced to perform XY1 button operations other than driving, which impairs safe driving. Further, the location of the destination is usually written on various printed materials as the name of the building or the address of the building. In order to store map information in which the information described in this manner is included in practical detail in a navigation device, a relatively large optical disk filing device or the like is required, for example.

This increases the cost and also has the disadvantage that it cannot meet the demand for miniaturization for mounting on vehicles.

The present invention has been made in view of the above points, and a mobile station receives location information of the destination using latitude and longitude from a base station wirelessly when displaying an image of the vehicle's destination location superimposed on a map. By obtaining information via a line, there is no need to install a storage device in the mobile station's vehicle that stores destination information such as building names or addresses, which requires a huge amount of storage capacity. In addition to easily reducing the size of on-vehicle equipment, it is also possible to automatically display destination location information using symbols without the driver having to press a button, reducing the number of operations required by the driver. An object of the present invention is to provide a vehicle destination guidance system that improves convenience.

[Means for Solving the Problem] In order to solve the above-mentioned object, the vehicle destination guidance system of the present invention has the following features: equipped with vehicle-mounted equipment that displays a superimposed image of a mark indicating the location of the destination on the map obtained from reception in response to a voice inquiry about destination information via a wireless line. A mobile station receives a voice inquiry regarding destination information from the mobile station via a wireless line, searches for location information of the destination on the map, and obtains location information of the destination. and a fixed or mobile base station equipped with destination guidance radio station equipment for transmitting data to the vehicle-mounted equipment via a wireless line.

[Operation] According to the vehicle destination guidance system of the present invention configured as described above, the building name or In response to an inquiry about destination information during driving based on a location address, etc., the base station searches for destination position information consisting of latitude and longitude values corresponding to the destination information. The location information of the destination obtained here is transmitted to the mobile station via a wireless link. Then, the mobile station automatically superimposes and displays the mark indicating the position of the transmitted destination position information and the mark of the positioning point on the read map, for example.

This eliminates the need to install a storage device in the vehicle that stores destination information such as the name of a building or address, which requires a huge amount of storage capacity. The task of setting on the displayed map becomes easier.

[Example] Next, an example of the vehicle destination guidance system according to the present invention will be described in detail below with reference to the accompanying drawings.

FIG. 1 is a block diagram showing the configuration of vehicle-mounted equipment, FIG. 2 is a block diagram showing the configuration of destination guidance radio station equipment, and FIG. 3 is a perspective view showing the external configuration of the vehicle-mounted equipment.

First, the configuration will be explained. The example shown in FIGS. 1 and 2 has a schematic configuration of vehicle-mounted equipment A, which is a mobile station, and destination guidance radio station equipment B, which is a base station.

In FIG. 1, vehicle-mounted equipment A is connected to a first antenna 10 that receives GPS signals @Wa, and includes a positioning device 12 that continuously derives a positioning signal Sa indicating the position of the own vehicle;
It has a first transceiver 18 such as a car phone using a public line to which a second antenna 16 for transmitting and receiving radio waves Wb, Wc related to a wireless line is connected. Further, a first switch 20 connected to the first transceiver 18 is connected to the first switch 20 for starting operation of the vehicle-mounted equipment A in order to obtain positional information of a destination indicated by latitude and longitude. A first speaker 22 and a first microphone 2 are connected.
4. Also, a first memory 26 that stores the destination information signal sb derived from the first transceiver 18.
and a control section 28 using a microprocessor (MPU) or the like having RAM, CPU, etc., and a second memory 32 such as a CD-ROM connected to this control section 28 and storing map information. It has a display 34 such as a CRT. Furthermore, it has a second switch 30 connected to the control unit 28 for instructing re-operation, etc., which will be described later.

FIG. 3 shows an example of the external appearance of the vehicle-mounted equipment A configured as described above mounted on a vehicle.

In this example, in consideration of safe driving, the first speaker 2 allows the driver to send and receive calls without taking his hands off the steering wheel.
2 and a first microphone 24 are used. Note that the reference numeral 25 is a handset for a car telephone that is used in the same manner as the first speaker 22 and first microphone 24, and the reference numeral 34a is a CRT constituting the display 34.

Next, the configuration of the destination guidance wireless installation @B will be explained.

In FIG. 2, the destination guidance radio station equipment B is connected to a third antenna 40 for transmitting and receiving radio waves WbSWc related to a radio line, and the third antenna 40 is connected to the vehicle-mounted equipment A. A second transceiver 42 corresponding to a car phone or the like forming a wireless line with the first transceiver 18, and a second speaker 44 connected to the second transceiver 42.
and a second microphone 46. Furthermore, a database that stores latitude and longitude that corresponds to map information stored in the second memory 32 of the vehicle-mounted equipment A and destination information such as building names and addresses, such as an optical disk filing. It has a search unit 48 for devices, etc., and a keyboard 50 connected to the search unit 48 for performing search operations for latitude and longitude corresponding to destination information such as building names and addresses. .

Next, the operation of the embodiment configured as described above will be explained.

First, the driver presses the first switch 20.

As a result, the first transmitter/receiver 18 is activated, and a radio wave Wc modulated by the code of the line connection is transmitted from the second antenna 16, and this radio wave Wc is transmitted to the third radio wave Wc of the vehicle-mounted equipment A. The signal is received by a second transceiver 42 via an antenna 40 . In this way, a radio line is connected to the destination guidance radio station equipment B.

Next, destination information such as the name or address of the building of the destination desired by the driver is transmitted to the first microphone 2.
4 (or handset 25). After this, via the first transceiver 18 and the second antenna 16,
A radio wave Wc modulated with the content of the transmission is transmitted.

This radio wave Wc is received by the third antenna 40 of the destination guidance radio station equipment B, and subsequently, the content of the driver's transmission is demodulated by the second transceiver 42.

The contents of the demodulated destination information are audibly transmitted to the operator of the destination guidance radio station equipment B through the second speaker 44.

Here, the operator inputs the voice-transmitted destination information desired by the driver into the keyboard 50. The search unit 48 into which the destination information has been input searches for the latitude and longitude corresponding to the destination information such as the building name and address, and then searches for the location information of the destination obtained here, in this case the latitude and longitude. A digital signal is sent to a second transceiver 42. Second transceiver 4
2 transmits a radio wave wb modulated with a digital signal of location information of the destination via a third antenna 40.

Next, the radio wave wb received via the second antenna 16
The digital signals of latitude and longitude corresponding to the destination information demodulated by the first transceiver 18 are taken into the control section 28. Subsequently, the digital signal is provided to the first memory 26 and stored therein. When this memorization is completed, the first transceiver 18 of the vehicle-mounted equipment A and the destination guidance radio station equipment B
The wireless link between the second transceiver 42 and the second transceiver 42 is cut off.

In this case, the wireless line is cut off by sending a control signal Sc from the control unit 28 to the first transceiver 18. In the case of a public line, the wireless line is cut off using well-known connection/disconnection operations.

In this way, when the digital signals of latitude and longitude corresponding to the destination information of the inquiry are stored in the first memory 26, the control unit 28 selects from among the map information stored in the second memory 32. Map information corresponding to the location of the destination is read out and output to the display 34, as well as the latitude and longitude values of the destination. In this case, the display 34 displays a map corresponding to the destination and also superimposes an X mark on the location of the destination. Next, if the driver needs to confirm the position of his/her own vehicle, he/she presses the second switch 30.

In this case, a plurality of radio waves Wa are transmitted from the GPS positioning device 12.
A positioning signal Sa indicating the position of the own vehicle, that is, the latitude and longitude values received and measured, is output to the control unit 28.1. The control unit 28 to which this positioning signal Sa is supplied selects and reads out map information corresponding to the measured position of the host vehicle from the road map information stored in the second memory 32. Further, the control unit 28 superimposes an arrow on the read map at the longitude and latitude point corresponding to the measured position of the own vehicle.

Further, an X mark is superimposed on the destination information signal Sb1 stored in the first memory 26, that is, the latitude and longitude point related to the location information of the destination. However, if the destination location is outside the screen, it will not be displayed. The superimposed signal is output to the display 34, and the position of the own vehicle is indicated on the map by an arrow, and an image is automatically displayed in which an X mark is superimposed on the destination position.

Furthermore, if the driver wishes to confirm the X mark at the destination location again, he or she presses the switch 30 again. Here, an image of a nearby map is displayed on the display 34 along with an X mark indicating the location of the destination. By continuously operating the second switch 30 in this way, since the destination is relatively far away, the X mark indicating the location of the destination and the arrow indicating the location of the moving vehicle can be confirmed in one display image. If this is not possible, the display image accompanying the travel of the own vehicle and the display image near the destination can be alternately displayed, allowing the driver to easily select and confirm the road etc. on which the driver is traveling.

In this way, there is no need to install an optical disk filing device that stores destination information such as building names or addresses, which requires a huge amount of storage capacity, in the vehicle-mounted equipment. The size of the vehicle can be easily reduced, and images of the destination location desired by the driver can be automatically and easily displayed, and operations related to operations other than driving can be reduced.

Although this embodiment has been described using one base station and a mobile station, a plurality of mobile stations can be operated in the same manner as described above. Further, the positioning device 12 of the own vehicle is not limited to GPS, and other positioning means such as an urban transportation system may be used. In addition, when the vehicle-mounted equipment A superimposes a mark on the map at the destination position, it is automatically done by obtaining the destination information signal sb, but the image is displayed only at the time the driver desires. It is also included in the present invention to provide a selection means so as to display the image at a desired time using a switch or the like provided therein.

[Effects of the Invention] As described above, the vehicle destination guidance system of the present invention supports a mobile station equipped with a vehicle-mounted equipment equipped with a positioning device and destination information such as a building or address. The base station is equipped with a radio station equipment for destination guidance that stores the location information of the destination in latitude and longitude. Immediately, the base station searches for the location information of the destination, such as latitude and longitude, and transmits the obtained destination location information to the mobile station via a wireless link. It is characterized by displaying images of marks related to location information of the destination and marks of positioning points on the read map. As a result, there is no need to install a storage device that stores the location information of the destination, which requires a huge amount of storage capacity, in the on-vehicle equipment, which makes it easier to achieve the desired miniaturization of the on-board equipment, and also to The location of the destination is automatically displayed as a mark on the image. Therefore, there is an advantage that the driver's operation is reduced and the convenience is improved without compromising safety.

[Brief explanation of the drawing]

FIG. 1 is a configuration diagram showing vehicle-mounted equipment in an embodiment of the vehicle destination guidance system according to the present invention, and FIG. 2 is a diagram showing the radio station equipment for destination guidance in the embodiment of the vehicle destination guidance system according to the present invention. Block diagram showing the configuration. FIG. 3 is a perspective view showing the external configuration of the vehicle-mounted device in FIG. 1. 10... First antenna 12... Positioning device 16... Second antenna 18... First transceiver 20... First switch 22... First speaker 24...・First microphone 26...First memory 28...Control unit 30...Second switch 32...Second memory 34...Display device 40...Third antenna 42 ...Second transceiver 44...Second speaker 46...Second microphone 48...Search unit 50...Keyboard A...Vehicle-mounted equipment B...For destination guidance Radio station equipment Sa...Positioning signal sb...Destination information signal Sc...Control signal FIG, 2

Claims (3)

[Claims] (1) A mark indicating the measured position of the own vehicle is displayed on the map read out from the stored map information on the display, and information obtained from the received destination information in response to a voice inquiry via the wireless line. a mobile station equipped with vehicle-mounted equipment that displays an image superimposed with a mark indicating the location of the destination on the map, and a voice inquiry from the mobile station regarding the destination information is received via a wireless line. and a destination guidance radio station equipment that searches for location information of the destination on the map and transmits the obtained location information of the destination to the vehicle-mounted equipment via a wireless line. A vehicle destination guidance system comprising: a fixed or mobile base station; (2) In the vehicle destination guidance system according to claim 1, the vehicle-mounted equipment includes: a positioning device that outputs a positioning signal that measures its own position; and at least an antenna, a speaker, and a microphone;
a first transceiver that transmits inquiry radio waves based on destination information to a base station and receives location information of the destination from the base station; A first memory that stores a position information signal, a second memory that stores map information, and a self-position and a self-position on the map information read out from the second memory on the display based on the supplied positioning signal. a control means for outputting a superimposed signal on which a mark indicating the position of the destination is superimposed; and a display device to which the superimposed signal is supplied and displays an image of the superimposed mark indicating the own position and the position of the destination on a map. The destination guidance radio station equipment includes at least an antenna and a speaker, and receives the inquiry radio waves from the first transceiver via a wireless line, and also receives radio waves related to the location information of the destination. a second transceiver for transmitting data; and a search unit that searches for location information of a destination corresponding to the destination information related to the inquiry and sends a signal related to the obtained location information of the destination to the second transceiver. A vehicle destination guidance system comprising: (3) In the vehicle destination guidance system according to claim 1 or 2, a wireless line is connected between the first transceiver of the vehicle-mounted equipment and the second transceiver of the destination guidance radio station equipment. A vehicle destination guidance system comprising a control means for automatically starting the process, and a switch for instructing the start.