JP2001021368A - Mobile information terminal, server device, information distribution system and control method therefor - Google Patents

Abstract

(57) [Summary] [Problem] To display designated information requested by a user on a display means of a mobile information terminal as actual real-time video. A car navigation system, a video data transmitting device, and a server device are connected via a network. Then, the server device 31 transmits the video data corresponding to the real video information D from the video data transmission device 21 to the car navigation system 1 based on the device selection information B and the specification information C specified by the user. Then, a real-time video (for example, a restaurant parking lot) requested by the user is displayed on the monitor of the car navigation system 1. This allows the user to timely grasp the congestion state of the parking lot through the real-time video.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile information terminal, a server device, an information distribution system, and a control method therefor.
In particular, the present invention relates to a mobile information terminal, a server device, an information distribution system, and a control method thereof suitable for use in a car navigation system.

[0002]

2. Description of the Related Art In general, as a mobile information terminal, a car navigation device mounted on an automobile is widely known. Here, this kind of car navigation device is G
The position of the vehicle is measured by PS (Global Positioning System) and autonomous navigation, and the current position mark of the vehicle is displayed on a map on a display device (monitor).
The car navigation device also has a function of searching for and displaying a route to a destination, and showing a route by voice, display, or the like. Accordingly, the car navigation device guides the vehicle to the destination by guiding the vehicle. In addition, the car navigation device has a CPU, ROM, RAM,
In addition to a monitor, etc., a storage medium (C
D-ROM or DVD).

On the other hand, sub-information of a gas station, a convenience store, a restaurant, a hotel, and the like is displayed on a monitor as an information source mark, and when the user needs such information, the information source mark is designated to display the information on the monitor. There is also a car navigation system device that displays the position of sub information and an advertisement (Japanese Patent Laid-Open No. 8-138193). Further, Japanese Patent Application Laid-Open No. H10-215316 describes a mobile communication system that distributes information in response to a user's request in consideration of a current position (or a specific position). Further, JP-A-11-65434 discloses that
There is disclosed an information providing system for selectively providing high-value information requested by a user.

[0004]

Among the above-mentioned prior arts, the car navigation device described in Japanese Patent Application Laid-Open No. H10-215316 discloses real-time event information corresponding to service request information from a user, or a specific position. However, it is not possible to display the congestion status in, for example, a parking lot of a restaurant or the like as a real-time video.

In the systems described in JP-A-8-138193 and JP-A-11-65434, information provided by an advertiser can be displayed. The situation was not displayed as real-time video. As described above, in each of the above-described conventional technologies, although it is possible to provide information in response to a user's request, it is not possible to display the current situation as an image in real time, and for example, without knowing that the parking lot is congested, In such a case, parking may not be possible, and there is a problem that information services are not sufficiently provided. The present invention has been made in view of the above circumstances, and provides a mobile information terminal, a server device, an information distribution system, and a control method thereof, which can display designated information requested by a user as actual real-time video. It is intended to be.

[0006]

According to a first aspect of the present invention, there is provided a mobile information terminal for exchanging data with an external device via an external communication device. A designation information inputting means for entering designation information for designating any one of real-time video data transmitted from imaging devices respectively installed at a plurality of predetermined positions; Transmitting / receiving means for transmitting, via the communication device, real-time video data corresponding to the designated information from the outside while transmitting the video data to the outside via the device, and displaying means for displaying the video data received by the transmitting / receiving means And the following.

The mobile information terminal according to the second aspect of the present invention inputs designation information for designating any one of real-time video data transmitted from imaging devices installed at a plurality of predetermined positions. Designation information input means for transmitting, transmitting and receiving the designation information to the outside, and receiving real-time video data corresponding to the designation information from the outside, and a display for displaying the video data received by the transmission and reception means Means.

[0008] The server device according to the third aspect of the present invention,
In a server device that controls a video data transmitting device that transmits real-time video data that is captured by the imaging unit that is installed at each of a plurality of predetermined positions, in order to read the video data corresponding to designated information,
Video data selection means for selecting one of the video data input to the video data transmission device, and video data distribution for distributing the video data from the video data transmission device to a mobile information terminal Means,
It is characterized by having.

According to a fourth aspect of the present invention, an information distribution system is connected to a network via an external communication device, transmits input designated information, and receives real-time video data corresponding to the designated information. Mobile information terminal having a transmitting / receiving means for transmitting and receiving video data received by the transmitting / receiving means, a plurality of video data transmitting apparatuses for transmitting real-time video data via the network, Based on the designation information input by the terminal, among the video data transmitted from each of the video data transmission devices, selects the video data corresponding to the designation information, and transfers the selected video data to the movement information. And a server device for delivering to the terminal.

According to a fifth aspect of the present invention, there is provided an information distribution system which is connected to a network, transmits and receives input designated information, and receives real-time video data corresponding to the designated information. A mobile information terminal having display means for displaying the video data received in the mobile information terminal, a plurality of video data transmitting devices for transmitting real-time video data via the network, and specifying information input by the mobile information terminal. A server device that, based on the video data transmitted from each of the video data transmitting devices, selects the video data corresponding to the designated information and distributes the selected video data to the mobile information terminal; It is characterized by having.

The invention according to claim 6 is the invention according to claim 4 or 5.
In the information distribution system described in the above, the server device,
Receiving the specified information input at the mobile information terminal, among the video data transmitted from each of the video data transmitting devices, video data selecting means for selecting real-time video data corresponding to the specified information, Video data delivery means for delivering the video data selected by the video data selection means to the mobile information terminal.

The invention according to claim 7 is the invention according to claim 4 or 5.
In the information distribution system described above, at least a part of the plurality of video data transmitting devices includes an image pickup unit installed at each of a plurality of predetermined positions.

The invention according to claim 8 is the invention according to claim 4 or 5.
In the information distribution system described in the above, the mobile information terminal is provided with designation information input for entering designation information for designating any one of a plurality of real-time video data transmitted from the plurality of video data transmission devices. It is characterized by having means.

The invention according to claim 9 is the invention according to claim 4 or 5.
The information distribution system according to claim 1, wherein the mobile information terminal includes a video data transmitting device selecting unit that selects any one of the plurality of video data transmitting devices, and the video data transmitting device selecting unit. And a designation information input unit for entering designation information for designating any one of a plurality of real-time video data transmitted from the video data transmission device selected by the above-mentioned method.

According to a tenth aspect of the present invention, in the information distribution system according to the fourth or fifth aspect, the display means includes a device display means for displaying a plurality of devices corresponding to the plurality of video data transmitting devices. The mobile information terminal has a device selection information input device for inputting the device display as device selection information by a user specifying the device display, and when the device selection information is input by the device selection information input device, Information display means for displaying a plurality of information corresponding to the plurality of video data, and designation information input means for inputting the information display as designation information by a user designating the information display, Features.

According to an eleventh aspect of the present invention, in the information distribution system according to the fourth or fifth aspect, the mobile information terminal is a car navigation device.

According to a twelfth aspect of the present invention, in the information distribution system according to the eleventh aspect, the car navigation device includes a current position measuring means for measuring a current position of the vehicle, and the current position is measured by the current position measuring means. The present position is displayed as a current position mark of the vehicle on the display means.

According to a thirteenth aspect of the present invention, in the information distribution system according to the fourth or fifth aspect, the designated information includes:
It is characterized in that it is at least one of the vacant state of the designated parking lot, the in-store situation of the designated store, or the congestion state of the designated road.

According to a fourteenth aspect of the present invention, in the information distribution system according to the tenth aspect, the mobile information terminal includes:
An information storage unit that stores schematic data corresponding to the device selection information in advance, and when the device selection information is input, reads out the schematic data corresponding to the device selection information from the information storage unit and sends the read data to the display unit. It is characterized by displaying summary information.

According to a fifteenth aspect of the present invention, in the information distribution system according to the fourth or fifth aspect, the network is a telephone network.

According to a sixteenth aspect of the present invention, in the information distribution system according to the fourth or fifth aspect, the communication device comprises:
It is characterized by being a mobile phone.

According to a seventeenth aspect of the present invention, there is provided a transmission / reception device connected to a network via an external communication device, for transmitting input designation information and receiving real-time video data corresponding to the designation information. A mobile information terminal having a display device for displaying video data received by the transmitting and receiving device, a plurality of video data transmitting devices for transmitting real-time video data via the network, Selecting the video data corresponding to the specified information from the video data transmitted from the respective video data transmitting devices based on the specified information, and distributing the selected video data to the mobile information terminal A server device, the method comprising: receiving specified information input by the mobile information terminal. A video data selecting step of selecting real-time video data corresponding to the specified information from the video data transmitted from each of the video data transmitting apparatuses; and the video data selected by the video data selecting step. And a video data distribution step of distributing the video data to the mobile information terminal via a communication device.

The invention according to claim 18 is a transmission / reception device connected to a network for transmitting input designation information and receiving real-time video data corresponding to the designation information, and A mobile information terminal having a display device for displaying video data, a plurality of video data transmitting devices for transmitting real-time video data via the network, and, based on designation information input by the mobile information terminal, A server device that selects the video data corresponding to the specified information from among the video data transmitted from each video data transmitting device, and distributes the selected video data to the mobile information terminal. A method for controlling an information distribution system, comprising: receiving designation information input at the mobile information terminal,
Among the video data transmitted from each of the video data transmission devices, a video data selection step of selecting real-time video data corresponding to the specified information, and the video data selected by the video data selection step Video data delivery step of delivering the video data to the mobile information terminal.

[0024]

Next, an embodiment of an information distribution system according to the present invention will be described with reference to FIGS.

[1. Configuration of Information Distribution System] <1.1. Overview of Information Distribution System> FIG. 1 is a schematic diagram of an information distribution system according to the present invention. This information distribution system exemplifies a car navigation system using a car navigation device as a mobile information terminal.

Here, the car navigation system is
A car navigation device 1 (hereinafter, referred to as a car navigation system 1) that receives real-time video data and displays the received video data, and a mobile phone 1 that connects the car navigation system 1 to a network 100 including a telephone network.
And a plurality of video data transmission devices 21 for transmitting real-time video data via the network 100
And a server device 31 that reads out real-time video data from each of the video data transmission devices 21 based on the designation information input by the car navigation device 1 and transmits the video data to the car navigation device 1 via the mobile phone 12. It is configured.

<1.2. Configuration of Car Navigation Apparatus> Next, a car navigation apparatus as a mobile information terminal will be described with reference to FIGS. Reference numeral 1 denotes a car navigation device as a mobile information terminal provided in the vehicle A. The car navigation device 1 includes a CPU 3, a RAM 4, a ROM 5, a display operation device 6,
Communication modem 7 serving as receiving means, CD driver 8 driving CD-ROM 8A, GPS receiver 9 for measuring the current position of vehicle A, beacon receiver 10 for obtaining road information and the like, and a gyro sensor , And various sensors 11 such as a vehicle speed sensor. Note that the CPU 3, the RAM 4, and the ROM 5 constitute a transmission / reception unit according to the present embodiment.

The display / operation device 6 comprises a monitor 6A composed of, for example, a liquid crystal display, and operation switches 6B such as touch switches. The CD-ROM 8A has map data and various general data corresponding to designated information. Etc. are stored. The ROM 5 also stores a current position measurement processing program for measuring the current position, a road condition display program,
A search processing program for searching for a route from the current position to the destination is stored.

The display operation device 6 displays a current position display function for displaying a current position mark of the vehicle A on a map of the monitor 6A, and device selection information corresponding to a plurality of video data transmission devices 21. A device selection information display function, a device selection information input function for inputting device selection information B when the user designates the device selection information with the operation switch 6B, and a device selection information B input with the device selection information input function A designated information display function for displaying designated information corresponding to a plurality of pieces of video data, and a designated information input function for entering designated information C when the user designates the designated information with the operation switch 6B. ing.

On the other hand, the GPS receiver 9 is provided with an antenna 9A, and the GPS receiver 9 has 24 GPS satellites 9
Among B, radio waves transmitted from at least three or more satellites 9B are received via the antenna 9A. And R
The current position of the vehicle A is measured as longitude and latitude coordinates based on the positioning data detected by the GPS receiver 9 by the current position measurement processing program stored in the OM 5.

The beacon receiver 10 has an antenna 1
0A is provided, and the beacon receiver 10 receives, via the antenna 10A, road traffic information, for example, a time required for a specific section, a closed state of an expressway, construction information, etc., from a beacon 10B appropriately installed on the road. Then, this information is appropriately displayed on the monitor 6A of the display operation device 6. This system is generally used for road traffic information communication systems (Vehicl
e Information Communication System (VICS).

On the other hand, the various sensors 11 detect data necessary for performing autonomous navigation. The gyro sensor detects the traveling direction of the vehicle A, and the vehicle speed sensor detects the traveling distance of the vehicle A. . And ROM5
The current position of the vehicle A is measured based on these detection data by the current position measurement processing program stored in the storage device. Further, in the car navigation system 1, based on the measurement result, the position of the vehicle A is measured as accurate coordinates together with the measurement of the current position by the GPS.

Reference numeral 12 denotes a mobile phone as an external communication device. The mobile phone 12 is connected to the car navigation system 1 via the communication modem 7 as an external communication device. The mobile phone 12 is connected to the wireless communication station 13 and the exchange 1
4 is connected to the network 100. Reference numeral 15 denotes a car antenna for the mobile phone 12 attached to the vehicle A.

<1.3. Configuration of Video Data Transmitting Apparatus> Next, the video data transmitting apparatus connected to the network 100 will be described. , 21a, 21b, ... are video data transmission devices (to be referred to as video data transmission devices 22 as a whole).
The video data transmitting device 21 includes a plurality of CCD cameras 22, 22,. When the video data transmitting device 21a transmits, for example, real-time video data in a restaurant, the CCD cameras 22 are installed in predetermined places such as a parking lot of a restaurant, a store, and the like. Further, when the video data transmitting device 22b transmits, for example, real-time video data on a highway, the CCD camera 2
No. 2 is installed for each predetermined distance (for example, 500 m) of an interchange, a service area, and an expressway. Here, the video data transmission device 22
Various real-time video data transmitted from the D camera 22 is always input.

<1.4. Configuration of Server Device> Next, a server device connected to the network 100 will be described. Reference numeral 31 denotes a server device, which is connected to the video data transmitting devices 21a, 21a via the network 100.
b,... are connected to the car navigation system 1. The server device 31 is provided with a database 32. The database 32 receives the real video information D by the processing shown in steps S24 to S26 in FIG. Is transmitted to the car navigation system 1. That is, the server device 31
Selects one of a plurality of video data transmitted to the specified video data transmitting device 21 in order to read out real-time video data corresponding to the real video information D specified by the car navigation system 1. The video data is transmitted to the car navigation system 1.

[2. Next, the operation of the present system will be described with reference to the slow charts shown in FIGS.

<2.1. Normal Processing of Car Navigation Apparatus 1> First, the normal operation of the car navigation 1 will be described with reference to FIG.

In step S1, as described above, the GPS
The coordinates corresponding to the current position of the vehicle A are measured based on the positioning data read from the receiver 9, and various sensors 1
The current position of the vehicle A is measured by the autonomous navigation from the detection result read from 1 and the accurate position (coordinates) of the vehicle A is measured from the information. In step S2, step S
The map data is read from the CD-ROM 8A based on the coordinates measured in step 1, and the map and the device selection information B (for example, restaurants, gas stations, road information, etc.) are displayed on the monitor 6.
A is displayed on A (step S3). Further, step S4
In step S1, the current position of the vehicle A is displayed as a current position mark based on the coordinates of the vehicle A measured in step S1. Then, in step S5, the current position of the vehicle A is measured again as in step S1.

Here, in step S6, it is determined whether or not the user has operated the operation switch 6B to input the device selection information B. If the determination is "NO", the input of the device selection information B is not performed. Assuming that it has not been performed, step S
Move to 7. In this step S7, it is determined whether or not the coordinates of the vehicle A measured in step S5 have changed. If the coordinates have not changed, neither the map nor the current position mark needs to be updated. Return to On the other hand, if "YES" is determined in the step S7, the process moves to the step S8 because the vehicle A is moving, and it is determined whether or not the current position mark of the vehicle A exists in the map, If yes, only the current position mark is updated and displayed on the monitor 6A (step S9), and the process returns to step S5. If the determination is “NO” in step S8, to change the map on the monitor 6A,
New map data is read from the CD-ROM 8A, and the map on the monitor 6A is updated (step S10). Then, the current position mark of the vehicle A is newly displayed (step S9).

On the other hand, if "YES" is determined in the step S6, it means that the user has designated the information source mark and input the device selection information B, and the process proceeds to the step S11 to be described later. The information display processing shown in FIG. 4 is performed.

<2.2. Display Process of Designated Information> Next, a process of displaying designated information will be described with reference to FIG.
In this embodiment, a case where the device selection information B is a restaurant and the designation information C is a parking lot will be described for convenience.

First, in step S21, outline data (eg, shop contents, menu, etc.) corresponding to the device selection information B (restaurant) from the CD-ROM 8A of the car navigation system 1
Is read, and in step S22, the general data is monitored by the monitor 6A.
To be displayed. Further, in step S23, the designation information C
It is determined whether or not there has been a request for (parking lot). If there has been no request (step S23; NO), the process returns to step S29 after displaying only the outline data.

On the other hand, if "YES" is determined in the step S23, it means that the user has requested the specified information C (for example, a picture of a restaurant parking lot).
In step S24, the designated information C is transmitted to the server device 31 via the mobile phone 12 and the network 100. Then, the server device 31 receives the designation information C and receives the video data transmitting device 21a corresponding to the restaurant.
Of the parking lot corresponding to the designated information C from the real-time video data transmitted to the car navigation system (step S25), and transmits the video data from the video data transmitting device 21a to the car navigation system 1 (step S26). ).

Further, the car navigation system 1 receives real-time video data corresponding to the designated information C (video of the parking lot of the restaurant) (step S27), and displays the real-time video of the parking lot on the monitor 6A (step S27). S2
8). Then, the process returns in step S29. on the other hand,
When the designated information C is in a restaurant, the situation in the restaurant can be displayed on the monitor 6A.

As described above, the car navigation system 1 according to the present embodiment
By displaying on the monitor 6A a real-time image required by the user, for example, a restaurant parking lot or the inside of a store, the user can grasp the congestion status in the parking lot or the store in real time.

[3. Effect of Embodiment] As described above, in the car navigation system according to the present embodiment, when a user requests real-time video information, the video can be displayed on the monitor 6A of the car navigation system 1, and the user can perform real-time video processing. You can see the video.

For example, if the designated information requested by the user is a restaurant parking lot, the server device 31 is operated by inputting the designated information C with the operation switch 6B of the car navigation 1, and the restaurant parking lot is entered. The camera transmits real-time video data from the CCD camera 22 installed in the car navigation system 1 to the car navigation system 1. Then, a timely image can be displayed on the monitor 6A of the car navigation system 1, and the user can grasp the congestion state of the parking lot in real time.

On the other hand, when the user designates, for example, an accident site on an expressway, the server device 31 selects the video data transmission device 21b on the expressway and installs the video data transmission device 21b near the accident site. The video data transmitted from the CCD camera 22 is transmitted to the car navigation system 1. Then, the situation of the accident site can be displayed on the monitor 6A of the car navigation system 1, and the user can grasp the traffic congestion situation due to the accident on the expressway, and can determine in advance whether or not to get off at the interchange in front. , Can be prevented from being caught in traffic. As a result, the user can display necessary real-time video data on the monitor 6A, and the convenience of the car navigation system 1 can be improved.

[4. Modification of Embodiment] <4.1. First Modification> In the above-described embodiment, the case where the mobile information terminal is applied to the car navigation system 1 has been described. However, the present invention is not limited to this, and the mobile information terminal may be configured as a mobile terminal or a mobile phone.

<4.2. Second Modification> The input of the device selection information B and the designation information C is performed by the operation switch 6B of the display operation device 6, but may be performed by using the keypad of the mobile phone 12.

<4.3. Third Modification> Further, the network 100 is not limited to a telephone network, but may be a communication telephone network, the Internet, or the like.

<4.5. Fifth Modified Example> In each of the above embodiments, the video data transmitting device 21 is provided with a plurality of CCD cameras 2.
2 has been described, but one CCD camera 22 may be connected to the video data transmitting device 21.

[0053]

As described above, according to the present invention, real-time video data corresponding to designated information is transmitted from a video data transmitting device to a mobile information terminal (for example, a car navigation device) and displayed on the mobile information terminal. Displaying real-time video by means. This allows the user to
By viewing the video of the requested place (for example, a parking lot in a restaurant, a store, a parking lot in a service area of an expressway, etc.) in a timely manner, it is possible to grasp congestion information and the like in real time.

[Brief description of the drawings]

FIG. 1 is a configuration diagram schematically illustrating a car navigation system according to an embodiment.

FIG. 2 is a block diagram illustrating a configuration of a car navigation device.

FIG. 3 is a flowchart showing a normal process of the car navigation device.

FIG. 4 is a flowchart showing information display processing.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Car navigation device 12 ... Cellular phone 21, 21a, 21b ... Video data transmission device 22 ... CCD camera 31 ... Server device 100 ... Network A ... Vehicle B ...・ Device selection information C ・ ・ ・ Designation information D ・ ・ ・ Real video information

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Claims (18)

[Claims] 1. A mobile information terminal for exchanging data with an external device via an external communication device, wherein real-time video data transmitted from an imaging device installed at each of a plurality of predetermined positions includes: Designation information input means for inputting designation information for designating any one, and transmitting the designation information to the outside through the communication device, and real-time video data corresponding to the designation information from outside A mobile information terminal, comprising: transmitting / receiving means for receiving via a communication device; and display means for displaying the video data received by the transmitting / receiving means. 2. Designation information input means for inputting designation information for designating any one of real-time video data transmitted from an imaging device installed at each of a plurality of predetermined positions; And transmitting / receiving means for externally receiving real-time video data corresponding to the designated information from outside, and display means for displaying the video data received by the transmitting / receiving means. Mobile information terminal. 3. A server device for controlling a video data transmitting device for transmitting real-time video data which is photographed and input by a plurality of image capturing means installed at a plurality of predetermined positions, wherein the video data corresponding to designated information is Video data selecting means for selecting one of the video data input to the video data transmitting device for reading, and distributing the video data from the video data transmitting device to a mobile information terminal And a video data distribution unit for causing the server device to perform the operation. 4. A transmission / reception means connected to a network via an external communication device for transmitting input designation information and receiving real-time video data corresponding to the designation information, and receiving by the transmission / reception means. A mobile information terminal having display means for displaying the obtained video data, a plurality of video data transmitting apparatuses for transmitting real-time video data via the network, and a designation information input by the mobile information terminal. A server device that selects the video data corresponding to the specified information from among the video data transmitted from each of the video data transmitting devices, and distributes the selected video data to the mobile information terminal. An information distribution system characterized by: 5. A transmission / reception means connected to a network for transmitting input designation information and receiving real-time video data corresponding to the designation information, and a display for displaying the video data received by the transmission / reception means. A mobile information terminal having means, a plurality of video data transmitting devices for transmitting real-time video data via the network, and from each of the video data transmitting devices based on designated information inputted by the mobile information terminal. A server device for selecting the video data corresponding to the designated information from the video data being transmitted, and distributing the selected video data to the mobile information terminal. system. 6. The information distribution system according to claim 4, wherein the server device receives the designated information input by the mobile information terminal, and transmits the video data transmitted from each of the video data transmitting devices. Video data selecting means for selecting real-time video data corresponding to the specified information, and video data delivering means for delivering the video data selected by the video data selecting means to the mobile information terminal. An information distribution system characterized in that: 7. The information distribution system according to claim 4, wherein at least a part of the plurality of video data transmission devices includes an imaging unit installed at each of a plurality of predetermined positions. Information distribution system. 8. The information distribution system according to claim 4, wherein the mobile information terminal designates one of a plurality of real-time video data transmitted from the plurality of video data transmission devices. An information distribution system, comprising: a designation information input unit for inputting designation information to execute the information. 9. The information distribution system according to claim 4, wherein the mobile information terminal selects any one of the plurality of video data transmitting apparatuses. Means, designation information input means for inputting designation information for designating any one of a plurality of real-time video data transmitted from the video data transmission device selected by the video data transmission device selection means, An information distribution system comprising: 10. The information distribution system according to claim 4, wherein said display means includes a device display means for displaying a plurality of devices corresponding to said plurality of video data transmission devices, and said mobile information terminal. A device selection information input means for inputting the device display as device selection information by a user designating the device display; and when the device selection information is input by the device selection information input means, the plurality of video data And information display means for displaying a plurality of information corresponding to the information display, and designation information input means for inputting the information display as designation information when a user designates the information display. system. 11. The information distribution system according to claim 4, wherein the mobile information terminal is a car navigation device. 12. The information distribution system according to claim 11, wherein the car navigation device includes a current position measuring unit that measures a current position of the vehicle, and the current position measured by the current position measuring unit is used as the current position. An information distribution system for displaying a current position mark of a vehicle on a display means. 13. The information distribution system according to claim 4, wherein the designated information is at least one of a vacant state of a designated parking lot, an in-store situation of a designated store, or a congested situation of a designated road. An information distribution system, characterized in that: 14. The information distribution system according to claim 10, wherein the mobile information terminal includes information storage means for storing schematic data corresponding to the device selection information in advance, and when the device selection information is input. An information distribution system which reads out general data corresponding to the device selection information from the information storage means and displays the general information on the display means. 15. The information distribution system according to claim 4, wherein the network is a telephone network. 16. The information distribution system according to claim 4, wherein the communication device is a mobile phone. 17. Connected to a network via an external communication device to transmit input designation information,
A mobile information terminal having a transmitting / receiving device for receiving real-time video data corresponding to the designated information, a display device for displaying the video data received by the transmitting / receiving device, and transmitting real-time video data via the network A plurality of video data transmitting devices, and based on the specifying information input by the mobile information terminal, among the video data transmitted from each of the video data transmitting devices, the video data corresponding to the specifying information A server device for selecting and distributing the selected video data to the mobile information terminal.A method for controlling an information distribution system, comprising: receiving designation information input at the mobile information terminal, Of the video data transmitted from each video data transmission device, real-time video data corresponding to the specified information An information distribution system comprising: a video data selection step of selecting; and a video data distribution step of distributing the video data selected in the video data selection step to the mobile information terminal via a communication device. Control method. 18. A transmission / reception device connected to a network for transmitting input designation information and receiving real-time video data corresponding to the designation information, and a display for displaying the video data received by the transmission / reception device. A mobile information terminal having a device; a plurality of video data transmitting devices for transmitting real-time video data via the network; and a video information transmitting device based on designated information input by the mobile information terminal. A server device for selecting the video data corresponding to the designated information from the video data being transmitted, and distributing the selected video data to the mobile information terminal. A method comprising: receiving designation information input by the mobile information terminal; A video data selecting step of selecting real-time video data corresponding to the specified information from the video data, and a video data delivering step of delivering the video data selected by the video data selecting step to the mobile information terminal. A method for controlling an information distribution system, comprising: