JP2010025909A - Car navigation apparatus for positioning cell-phone and system thereof - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a car navigation apparatus and a car navigation system capable of recognizing a location of specific person to be met as well as performing path navigation to the location as a destination. <P>SOLUTION: The car navigation apparatus with GPS function characterized by including a communication device capable of receiving both GPS radio wave and cell-phone radio wave, a map database or storage media storing map data, a positioning device detecting a current position of a vehicle via receiving GPS radio wave, a GPS data discrimination switching means performing automatic switching while performing discrimination of GPS data via receiving GPS data input from a cell-phone through the communication device, a route guidance means searching perimeter of the position concerned from the map database based on position information input from the positioning device to read out and generating map imagery to display and output with position information, and a display device displaying position information of the vehicle and map data on a screen based on information input from the route guidance means and, in addition, performing audio guide. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a mobile phone position locating car navigation apparatus and system for locating a location of a mobile phone holder to be visited and enabling route navigation to the determined position.

  Conventionally, mobile phones and car navigation devices (hereinafter abbreviated as “car navigation systems”) have been widely used. However, current car navigation systems perform navigation to a destination set by a user and are shown in the present invention. Thus, there is no device and system for locating the location of the mobile phone holder and performing navigation using this location as the destination.

Mobile phones are used extensively because they can be used easily indoors and outdoors, while car navigation systems are installed in cars to provide guidance on the route to the destination and contribute to the convenience of car traffic. Yes. A car navigation system is operated using a GPS system (Global Positioning System). This GPS system receives radio waves from 3 out of 27 military satellites launched about 21,000 kilometers above the earth, and measures the longitude and latitude of a car navigation-equipped vehicle based on the principle of triangulation. By using a correction system, the accuracy is improved up to an error of several meters.
In general, a car navigation system receives an input of a destination, searches for an appropriate route from the current position to the destination based on map data, and guides the route with an audio signal for a turning corner or an image such as a map. Here, the map data includes information (network data) indicating the degree of connection of roads, such as information on landmarks such as convenience stores that serve as landmarks for turning corners, and information such as enlarged views of intersections. In addition, because the roads change due to construction, etc., and the landmarks change frequently, the map database management center centrally manages the latest map data so that it can provide accurate guidance based on the latest map data as much as possible. Is installed on the ground, and an on-vehicle car navigation system receives the latest map data from the map database management center and updates the map as necessary.
The car navigation user first sets the destination, and at the start, the route guidance is given both visually and auditorily, and can be guided to move smoothly to the destination, but it is generally fixed. Set a specific location as the destination. Therefore, for example, when trying to meet a specific person located outdoors, it is necessary to know the specific person's whereabouts and set the whereabouts as the destination. In many cases, it is difficult to accurately grasp, and even if the specific person has a mobile phone, it is difficult to correctly convey the location to the car navigation system-equipped car from the surrounding situation. On the other hand, cellular phones with a GPS function are also becoming popular in recent years. Using this, the mobile phone owner informs the car navigation system of his / her whereabouts and sets the destination on the carnavigation. Although it is possible to move to the destination, it is troublesome.
The present invention has been invented in order to solve the problems associated with conventional car navigation systems and systems as described above, and is intended to provide a more convenient car navigation system and system. .

The present invention has the following configuration as means for solving the problems.
That is, according to one aspect of the present invention, in a car navigation device having a GPS function, a communication device capable of receiving both GPS radio waves and mobile phone radio waves, a map database as a storage medium storing map data, and a GPS A position locating device that receives a radio wave to detect the current position of the car, GPS data discrimination switching means that performs GPS data discrimination upon receiving GPS data input from a mobile phone via the communication device, and performs automatic switching; Based on the position information input from the position locating device, the periphery of the position is retrieved from the map database, read out, a map image is generated and displayed together with the position information, and input from the route guide means A display device that displays car position information and map data on the screen based on the information and also provides voice guidance. Is a mobile phone position locating car navigation device according to claim that there were example.
Another aspect of the present invention is that a communication unit that receives and transmits portable radio waves and GPS radio waves, a map data unit that stores map data, and a current position of the mobile phone by data input from the communication unit GPS which converts the obtained GPS data into a mobile phone radio wave and transmits it in a mobile phone with a GPS function provided with a position locating unit for detecting the position and a display unit for displaying the detected position data together with map data from the map data unit A mobile phone positioning car navigation system comprising a data conversion transmitter, a GPS mobile phone having the above configuration, and a combination of the GPS mobile phone and the mobile phone positioning car navigation device. .

According to the present invention, by receiving GPS data from a mobile phone with a GPS function having a GPS data conversion / transmitting unit possessed by an outdoor specific person who is going to meet, this received data The current location of the specific person based on the map is displayed on the screen together with the map data, and this specific person position is set as the destination by the car navigation operation, and the route guidance is started, so it is possible to proceed smoothly to the destination, A useful car navigation apparatus and car navigation system that cannot be obtained by car navigation means can be obtained.
In addition, by incorporating a unique device in each of the car navigation system and the GPS mobile phone, it is possible to obtain a significant device and system that can cope with a case where the driver and the passenger do not have a mobile phone.

Hereinafter, embodiments of the present invention will be described.
FIG. 1 is a configuration block diagram of a car navigation system and a mobile phone according to an embodiment of the present invention.
In the figure, reference numeral 1 denotes a communication device, which is applied to both GPS radio waves and mobile phone radio waves.
2 is a map database which is a storage medium such as a hard disk storing map data of the whole country, 3 is a position locating device equipped with GPS and a gyro sensor, and 4 is a control unit. In this control unit, route guidance means 5, map database update means 6, and GPS data discrimination switching means 7 are stored. With this GPS data discrimination switching means, it is possible to discriminate GPS data from a specific person and switch from the GPS data currently in use to the GPS data from this specific person. Reference numeral 8 denotes a display device for displaying the map data and the current position. The position locating device detects the current position of the vehicle based on information from various sensors and outputs it to the control unit as position information.
Based on the position information input from the position locating device, the control unit searches and reads out map data representing the periphery of the position from the map database, generates a map image, and outputs it to the display device together with the position information. . The control unit receives the destination information from the user, calculates a route that is considered appropriate based on the map data, and highlights the route. At this time, landmarks and intersection images included in the map data are also displayed on the display device so that the user can travel without making a mistake in the route.
Further, the control unit transmits a signal requesting map data to the map database management center (not shown) via the communication device, receives the map data, and updates the contents of the map database by the map database update means. To do.
The display device displays the vehicle position information and map data on the screen based on information input from the control unit, and also provides a guidance of the travel route by producing sound. The communication device receives an input of a signal requesting map data from the control unit, transmits the map data to the map database management center, receives the latest map data from the map database management center, and outputs it to the control unit. With the above configuration, the car navigation system A is provided.

10 to 14 are mobile phones having a GPS function.
In the figure, 10 is a communication unit, 11 is a map data unit, 12 is a position location unit, 13 is a GPS data conversion and transmission unit, and converts GPS data obtained by the GPS function of a mobile phone into a mobile phone radio wave format. This is the part to send. Reference numeral 14 is route guidance means, and 15 is a display unit.
The mobile phone B with the GPS function is configured with the above configuration.
Next, functions and usage methods of the present invention will be described.
A driver or a passenger of a car navigation-equipped vehicle calls a specific person who is going to meet with the other party on his / her mobile phone and requests transmission of the specific person's location data to the car navigation system. The mobile phone number of the specific person is registered in advance in the car navigation system.
The specific person transmits GPS data by operating his / her mobile phone.
By operating the cellular phone shown in the figure, the specific person first receives GPS radio waves using the GPS function in the communication unit. The received GPS radio wave is converted into a cellular phone radio wave format by the GPS data conversion / transmission unit and transmitted to the car navigation system. Usually, this GPS data is matched with built-in map data and expressed on a mobile screen. The current transmission means transmits the data integrated with this screen to another mobile phone, but in the present invention, in order to express it with a car navigation system, the data for specifying the whereabouts expressed on this map is separated. To do this, the GPS data conversion / transmission unit performs this and transmits from the antenna.

This transmitted data is received by the car navigation system. First, it is determined whether or not the data received by the receiving device with a built-in car navigation matches the registered data. If they match, the process proceeds to the next step. There is a GPS data discrimination switching means in the control unit, where the GPS data currently in use is automatically switched to the received GPS data, and the location of the received GPS data sender, that is, the specific person is determined. It is confirmed by the position locator and expressed on the display device together with the data from the map data. At this time, it is expressed together with the registration data.
The display device screen expresses whether this position is the destination, and if OK, the destination is newly set by the car navigation operation, and the route guidance is started by the route guidance means.
In this example, the map database updating means is built in the car navigation system, so that the latest map information can be obtained. The above is one embodiment of the present invention.
3 to 4 show other examples of the present invention.
This example is configured so that the purpose can be achieved even when a car navigation operator or a passenger does not have a mobile phone. In this example, a GPS data transmission control unit is provided in the mobile phone at a specific location, and a mobile phone radio wave transmission unit is provided in the car navigation system.
A command radio wave is transmitted from the portable radio wave transmitter to the other mobile phone by the car navigation operation, and this mobile phone GPS function is activated by the GPS data transmission control unit. Then, the location data of the mobile phone is acquired. The acquired GPS data is automatically transmitted to the car navigation system as in the previous example, and this radio wave is received by the car navigation system, and the procedure proceeds as described above to achieve the purpose.

Although the present invention has been described above, the present invention acquires the GPS data from the mobile phone with the GPS function possessed by the specific person by the car navigation system, and the location information based on this data. By setting as the destination, route guidance to the specific arbitrary place is started, and it is possible to move smoothly to the destination.
As described above, in the conventional means, only the screen-like map information and position information from the other GPS mobile phone can be obtained, and it is necessary to input this position by car navigation operation and newly set it. It took time.
However, in the present invention, the destination can be set by a simple operation by acquiring GPS data from a GPS mobile phone, and the convenience can be used. In the other examples described above, the car navigation side can achieve its purpose even if it does not have a mobile phone, and even when the other party moves, the destination can be easily changed each time. In the example described above, the map data updating means is provided in the car navigation system, but this portion may be omitted.
Further, by providing each of the above-described device portions in two car navigation systems, the same convenience can be obtained between the car navigation systems. It should be noted that a separate switching means may be provided in the car navigation system to detect the GPS data reception from the other side and guide the destination change even when the car navigation system is not being used. Further, if a mobile phone function is added to the car navigation system, it is convenient to smoothly communicate with the other party even if the mobile phone is not in hand, and a commonly used memory card system may be adopted.
It should be noted that the same convenience can be obtained between mobile phones (with GPS function) by incorporating the mechanism of the present invention into the mobile phone.
As described above, a new and useful car navigation apparatus and system thereof can be obtained according to the present invention.

  Configuration block diagram of the present invention   Flowchart diagram for use of the present invention.   Configuration block diagram in another example of the present invention   Flowchart diagram for use in another example of the present invention

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Communication apparatus 2 Map database 3 Position location apparatus 4 Control unit 5 Route guidance means 6 Map database update means 7 GPS data discrimination | determination switching means 8 Display apparatus 10 Communication part 11 Map data part 12 Position location part 13 GPS data conversion transmission part 14 Path Guide means 15 Display unit 20 Portable radio wave transmission unit 21 GPS data transmission control unit A Car navigation system B Cell phone with GPS function

Claims (4)

In a car navigation device having a GPS function, a communication device capable of receiving both GPS radio waves and mobile phone radio waves, a map database which is a storage medium storing map data, and a current position of a vehicle by receiving GPS radio waves Position detection device to detect, GPS data determination switching means for receiving GPS data input from the mobile phone via the communication device and performing GPS data determination and automatic switching, and position information input from the position determination device Based on the information, the route around the position is retrieved from the map database, read out, a map image is generated and displayed together with the position information, and the position of the car on the screen based on the information inputted from the route guidance means A portable device comprising a display device that displays information and map data and provides guidance by voice Talk position locating car navigation device. A communication unit that receives and transmits portable radio waves and GPS radio waves, a map data unit that stores map data, a location unit that detects the current position of the mobile phone by data input from the communication unit, and a detected position In a mobile phone with a GPS function that includes a display unit that displays data together with map data from the map data unit, a GPS data conversion / transmission unit that converts and transmits the obtained GPS data to mobile phone radio waves is provided. A mobile phone positioning car navigation system comprising a GPS mobile phone and a combination of the GPS mobile phone and the mobile phone positioning car navigation device according to claim 1. The mobile phone position locating car navigation device according to claim 1, further comprising a mobile radio wave transmitter for transmitting radio waves for mobile phones. The mobile phone position locating car navigation system according to claim 2, wherein a GPS data transmission control unit is provided in the GPS mobile phone expressed in claim 2.

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