JPH0993175A - Satellite communication vehicle system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To use the system for a communication means and an information collection means on the occurrence of emergent disaster and to attain multimedia communication conference and internet connection via a satellite. SOLUTION: A changeover means 14 is selectively connected to a video conference system 4 of a mobile vehicle 4 to send conference information or the like collected by the video conference system 4 to an opposite party via a transmitter-receiver 16, a satellite antenna 6 and a satellite channel and conference information or the like from the opposite party is received to attain the video conference. Furthermore, a changeover means 14 is selectively connected to an internet connection system 12, an IP address of a communication opposite terminal equipment is received from a terminal equipment 10 and a router 125 is used to select a path through which information is transferred based on address information and an automatic satellite access means 126 is used to access to the communication opposite terminal equipment automatically so as to attain transmission reception of a file and data to a machine connecting to the internet via the satellite channel.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a satellite communication vehicle system, and more particularly to a satellite communication vehicle system equipped with a video conference system, an internet connection system and other functions, which can be used as a mobile office.

[0002]

2. Description of the Related Art Conventionally, for example, as a method for holding various meetings between a head office located at a distant place, a branch office, a sales office, and a work site while observing local maps, design drawings, etc., A video conference system using a communication line is known.

This type of video conference system is roughly classified into video and audio input / output equipment consisting of a camera, a monitor TV, a microphone, a speaker, and the like, and the video and audio are encoded and compressed to communicate with the other party via a communication line. And a transmission device for mutual communication with each other, and further, design drawings, maps and the like used in the meeting are transmitted by using a facsimile.

[0004]

However, in the conventional video conference system of this type, the video and audio input / output equipment and the transmission equipment constituting the system are installed at the head office, the branch office, the sales office and the work site, respectively. However, both or multiple point simultaneous conferences are possible through satellite or other communication lines, but since these systems are fixed type, it is not possible to conduct video conferences other than the place where the system is installed. Since the interface used for the data transmission of is limited to RS232C, there is a problem that it cannot be used for data communication at a speed exceeding this. Moreover, in recent years, the use of the Internet has enabled worldwide personal computer communication regardless of country, but since all terminal devices that access such networks are fixed, disasters can occur. There has been a problem that it is not possible to move to a urgent place such as the ground and collect and transmit necessary information.

The present invention has been made in view of the above circumstances, and can be used as a communication means and an information collecting means in case of an emergency disaster, and also enables a multimedia communication conference in normal times and an internet connection via a satellite. It is intended to provide a satellite communication vehicle system.

[0006]

In order to achieve the above object, a satellite communication vehicle system of the present invention is a mobile vehicle and a satellite antenna mounted on the mobile vehicle and having a function of automatically capturing a communication satellite. A video conference system installed in the moving vehicle, and video and audio data of the video conference system are multiplexed and transmitted to the other party of the video conference, and the division multiplexed data received from the other party is imaged.
Demultiplexing means for demultiplexing into voice data, a terminal device installed in the mobile vehicle and communicating with the Internet,
An internet connection system for connecting the terminal device to the internet, a transmission / reception device connected to the satellite antenna in the mobile vehicle, and one of the demultiplexing means and the internet connection system for the transmission / reception device. And a switching means for selectively connecting.

Further, the present invention provides the Internet connection system, wherein a hub to which the terminal device is connected, a router which is connected to the hub and selectively controls an information transfer path of the terminal device, the router and the switching device. The automatic satellite access means is connected between the means to access the communication partner designated by the terminal device. Further, the present invention includes a GPS antenna and a receiver that are installed in the mobile vehicle and that receive radio waves from GPS satellites to acquire the position of the mobile vehicle, and a monitor that also serves as a television and that displays the acquired position. Further, the mobile vehicle position data is transmitted from the terminal device to the Internet through the Internet connection system. Further, according to the present invention, a facsimile is mounted on the mobile vehicle, and transmission / reception data of the facsimile can be transmitted / received to / from a facsimile on the other side through the demultiplexing means, the transmission / reception device and the satellite antenna. Further, according to the present invention, the mobile vehicle is further equipped with a mobile telephone capable of making a call via a base station.

In the present invention, by selectively connecting the switching means to the video conference system of the moving vehicle, the video conference can be held with the other party from any place without fixing the place. Also, by selectively connecting the switching means to the internet connection system of the mobile vehicle,
You can connect the mobile car to the Internet as needed and download the necessary data and materials from the machines all over the world to the satellite communication vehicle.In case of an emergency disaster, you can access the data from any place where the mobile car can go through the network. Information can be collected and transmitted.

Further, in the present invention, the GPS is used for the moving vehicle.
By installing the receiver, it is possible to transmit the position data of the mobile vehicle through the Internet and know the current position of the satellite communication vehicle. Further, in the present invention, by mounting a monitor that also functions as a television receiver on a moving vehicle, it is possible to collect local information by using this monitor. Further, in the present invention, the communication satellite vehicle can be used as a mobile office by mounting a mobile telephone and a facsimile on the mobile vehicle.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic diagram showing the overall configuration of a satellite communication vehicle system according to an embodiment of the present invention. In FIG. 1, reference numeral 2 denotes a moving vehicle with an engine that can be driven and driven by a driver.
A video conference system 4 is installed therein, and a satellite antenna 6 having a function of automatically capturing communication satellites in the sky is installed on the roof of the mobile vehicle 2.

As shown in FIGS. 1 and 2, the video conference system 4 includes a video / audio input / output equipment 401 including video cameras, monitor TVs, microphones, speakers, etc., and video / audio signals from the input / output equipment 401. COD that encodes and compresses and sends to the other party of the video conference and decodes the encoded and compressed video and audio signals sent from the other party, decompresses, and sends to the input / output equipment 401.
An EC (encoding / decoding circuit) 402, an input / output interface 403 for interfacing with the facsimile 8 installed in the mobile vehicle 2, data taken in through this input / output interface 403, and a CODEC 40
A demultiplexing circuit 404 that splits and multiplexes the video and audio signals sent from 2 and sends the split and multiplexed signals sent from the other side to the CODEC 402 and the input / output interface 403.
Is provided.

Further, the facsimile 8 is capable of transmitting a design drawing or the like having a size corresponding to the A1 version, converting image signals such as characters and figures into digital signals, compressing the data, then encoding and demultiplexing. It has a function of outputting the data to the circuit 404 and decoding and recording / reproducing the fax data sent from the other facsimile through the demultiplexing circuit 404.

In FIG. 1, 10 is a terminal device such as a personal computer installed in the mobile vehicle 2 for communicating with the Internet, and 12 is an internet connection system for connecting the terminal device 10 to the internet. The Internet connection system 12 includes a hub 122 to which the terminal device 10 is connected via a twisted pair cable 121, and a twisted pair cable 123 and an adapter 1 to the hub 122.
A router 125 which is connected via 24 and which selectively controls the information transfer path of the terminal device 10;
The automatic satellite access means 126 is connected by the 35 interface and automatically connects and accesses the communication partner according to the IP (Internet Protocol) address specified by the terminal device 10.

Reference numeral 14 is a switching means corresponding to the V.35 series, which is connected to the automatic satellite access means of the Internet connection system 12, 126 and the demultiplexing means 404.
Video conferencing system 4 and Internet terminal device 1
Either one of 0 is selected and connected to the transmission / reception device 16. The transmission / reception device 16 modulates various data from the video conference system 4 or the terminal device 10 and amplifies and outputs the power to the satellite antenna 6, and at the same time, amplifies and demodulates the radio waves from the communication satellite arriving at the satellite antenna 6 to obtain the television. It is configured to be transmitted to the conference system 4 or the terminal device 10.

In FIG. 1, reference numeral 18 denotes a GPS antenna installed on the roof of the moving vehicle 2, and 20 denotes a GPS antenna 18.
A GPS receiver for calculating the position of the moving vehicle 2 by receiving radio waves from a plurality of satellites arriving at the GPS receiver 20. The GPS receiver 20 also serves as a television for displaying the acquired position of the moving vehicle 2. Monitor 22 is connected, and further GP
The position data of the moving vehicle 2 calculated by the S receiver 20 can be transmitted from the terminal device 10 to the Internet through the Internet connection system 12. Also, 2
Reference numeral 4 denotes a mobile telephone installed in the mobile vehicle 2, and the mobile telephone 24 is configured to be able to talk with the other telephone through a base station, an exchange, and a telephone line (not shown). A generator for supplying power to each system and device installed in the moving vehicle 2 is mounted in the moving vehicle 2.

Next, the operation of the present embodiment configured as above will be described. For example, a case where a video conference is conducted with a satellite communication vehicle installed at a construction site, a head office, a branch office, and the like will be described. In this case, first, the radio waves from a plurality of satellites arriving at the GPS antenna 18 are received to
The position of the moving vehicle 2 is calculated by the S receiver 20, and the position data is displayed on the monitor 22 to recognize the current position (latitude, lightness) of the moving vehicle 2, and based on this position data, the communication satellite Is determined, and the satellite antenna 6 on the moving vehicle 2 is directed to the communication satellite in this direction. After that, the capturing means included in the satellite antenna 6 is driven to automatically direct the satellite antenna 6 to the communication satellite. In such a state, the switching means 14 is selectively connected to the video conference system 4 side, the video conference system 4 is activated, and the video conference system of the head office or branch office which is the video conference partner is activated.

FIG. 3 shows a satellite communication vehicle 26 via a satellite line.
The following is a schematic diagram of a case where a video conference is held with the main store or a branch. 28 is a video conference system of the main store, 30 is a video conference system of a branch, and 32 is a communication satellite. In such a satellite line system, when conducting a teleconference between the satellite communication vehicle 26 and the head office, the satellite communication vehicle 2
By operating the input / output equipment 401 of the video conference system 4 on the 6 side, the video and audio signals on the satellite communication vehicle 26 side output from the input / output equipment 401 are transmitted by the CODEC 4
After being encoded by 02 and compressed, the demultiplexing means 404 multiplexes at a predetermined bit ratio. The multiplexed data is modulated by the transmission / reception device 16 and then amplified in power and transmitted from the satellite antenna 6 to the communication satellite 32 in the sky.

The received wave received by the antenna of the communication satellite 32 enters the receiver, is converted to an intermediate frequency and amplified, then converted to the transmission frequency, further power-amplified, and radiated toward the earth. At the head office on earth, communication satellite 32
The radio wave emitted from the antenna 281 is captured by the antenna 281 and taken into the video conference system 28 having substantially the same configuration as the video conference system 404 on the satellite communication vehicle 26 side, thereby operating the input / output equipment of the video conference system 28. The state of the meeting on the satellite communication vehicle 26 side can be displayed and notified in real time. In this case, the image sent from the satellite communication vehicle 26 to the head office side is the work situation at the site, and the situation at the work site can be explained by showing this image to the other party of the conference. In addition, the video signal picked up and picked up by the input / output equipment of the TV conference system 28 at the head office and the picked-up audio signal are the same as in the case of the satellite communication vehicle 26.
Is transmitted to the satellite communication vehicle 26 via the, and by operating the input / output equipment 401 of the video conference system 4,
The state of a meeting at the head office can be displayed and notified in real time. This enables a video conference between the satellite communication vehicle 26 and the head office.

On the other hand, during the above-mentioned video conference, the satellite communication vehicle 2
When transmitting fax data such as maps and design drawings from 6 to the head office side, the fax data sent from the fax machine 8 is multiplexed by the demultiplexing means 404 through the input / output interface 403 together with the video and audio data at a predetermined bit ratio. Then, the signal is transmitted from the transmitting / receiving device 16 to the communication satellite 32 through the satellite antenna 6. In the video conference system 28 on the head office side, the fax data separated by the demultiplexing means is output to the facsimile 282 on the head office side and reproduced and printed. Also, when transmitting fax data from the head office side to the satellite communication vehicle 26, the same operation is performed.

Next, the case of information communication using the Internet will be described. In this case, first, the switching means 14 is selectively connected to the internet connection system 12. In this state, if the IP address set in the terminal as the communication partner is input from the terminal device 10, the router 1
25 selects a route for transferring information based on the address information, and the automatic satellite access means 126 automatically accesses and connects to the communication partner terminal according to the Internet protocol. As a result, files and data can be transmitted / received to / from a machine connected to the Internet via the communication satellite 32, and necessary data and materials are accessed from the accessed machines all over the world. Can be downloaded to. Also,
In an emergency disaster, necessary information can be collected and transmitted through the network from anywhere where the moving vehicle 2 can go. Further, since the position data of the moving vehicle 2 obtained by the GPS receiver 20 can be transmitted to the Internet through the terminal device 10, the partner terminal receiving this can easily know the current position of the satellite communication vehicle 26. At this time, the situation of the emergency disaster area can be displayed on the video conference system of the communication partner via the satellite line by using the image pickup camera and the microphone of the input / output equipment mounted on the mobile vehicle 2.

Further, in this embodiment, since the monitor 22 which also functions as a television receiver is mounted, the local information can be obtained by using the monitor 22 and the radio receiver which is mounted in advance in the moving vehicle 2. Can also be collected. further,
Since the mobile telephone 2 and the facsimile 8 are mounted on the mobile vehicle 2, the communication satellite vehicle 26 can be used as a mobile office. Further, it is possible to carry out a broadcast communication in which the contents of the meeting with the head office etc. are simultaneously sent from the satellite communication vehicle 26 to the branch office, the sales office and the like.

[0022]

As is apparent from the above description, according to the present invention, since the mobile car is equipped with the video conference system, the Internet connection system, the facsimile, the mobile telephone, etc., the location is not fixed. , You can have a video conference with the other party from any place, you can connect the mobile car to the Internet as needed and download the necessary data and materials from the machines all over the world to the satellite communication car, Furthermore, in the event of an emergency disaster, it is possible to collect and transmit the necessary information through the network from any place where a moving vehicle can go. Also, because the mobile vehicle is equipped with a GPS receiver. It is possible to easily know the current position of the satellite communication vehicle by transmitting the position data of the moving vehicle through the Internet. Further, according to the present invention, since a monitor that also serves as a television receiver is mounted on the moving vehicle, it is possible to collect local information by using this monitor and the radio receiver installed in advance on the moving vehicle. . In addition, the moving car
Since the mobile phone and the facsimile are installed, the communication satellite car can be used as a mobile office.

[Brief description of drawings]

FIG. 1 is a schematic diagram showing an overall configuration of a satellite communication vehicle system according to an embodiment of the present invention.

FIG. 2 is a block diagram showing a configuration of a main part of the video conference system according to the embodiment of the present invention.

FIG. 3 is a schematic diagram of a case where a satellite communication vehicle to which the system of the present invention is applied and a video conference between a head office or a branch are held.

[Explanation of symbols]

 2 mobile vehicle 4 video conference system 6 satellite antenna 8 facsimile 10 terminal device 12 internet connection system 14 switching means 16 transmitting / receiving device 18 GPS antenna 20 GPS receiver 22 monitor 121 hub 125 router 126 automatic satellite access means 401 input / output equipment 402 CODEC 403 Input / output interface 404 demultiplexing means

Claims (5)

[Claims] 1. A mobile vehicle, a satellite antenna mounted on the mobile vehicle and having a function of automatically capturing communication satellites, a video conference system mounted in the mobile vehicle, and an image of the video conference system. And demultiplexing means for dividing and multiplexing the audio data to the other party of the video conference and transmitting the divided and multiplexed data received from the other party into video and audio data, and for communicating with the Internet by being installed in the moving vehicle. A terminal device to perform, an internet connection system for connecting the terminal device to the internet, a transmitter / receiver connected to the satellite antenna in the moving vehicle, the transmitter / receiver having the demultiplexing means and the internet connection system A satellite communication vehicle system comprising: switching means for selectively connecting any one of the above. 2. The Internet connection system comprises: a hub to which the terminal device is connected; and a router which is connected to the hub and selectively controls an information transfer path of the terminal device.
2. The satellite communication vehicle system according to claim 1, comprising automatic satellite access means connected between said router and said switching means for accessing a communication partner designated by said terminal device. 3. A GPS antenna and a receiver, which are installed in the mobile vehicle and receive radio waves from GPS satellites to acquire the position of the mobile vehicle, and a monitor that also serves as a television and displays the acquired position. The satellite communication vehicle system according to claim 1, further comprising: the position data of the moving vehicle transmitted from the terminal device to the Internet through the Internet connection system. 4. The satellite communication vehicle system according to claim 1, wherein a facsimile is mounted on the mobile vehicle, and transmission / reception data of the facsimile is transmitted / received to / from a facsimile on the other side through the demultiplexing means, the transmission / reception device and the satellite antenna. . 5. The satellite communication vehicle system according to claim 1, wherein the mobile vehicle is further equipped with a mobile telephone capable of making a call via a base station.