JPH05260235A - Newspaper delivery system by satellite - Google Patents

Abstract

PURPOSE:To enhance the immediacy of newspaper and to save number of persons required for the delivery of newspaper by delivering newspaper having been delivered in the morning and evening to each home while using a satellite launched on the twilight mode sun synchronization orbit as a relay station. CONSTITUTION:The system is provided with an artificial satellite 1 launched on the twilight mode sun synchronization orbit with a data repeater mounted thereon, a press ground station 7 sending newspaper data to the data repeater, and a home use terminal equipment 8 installed in each home and receiving and demodulating the newspaper data sent via the data repeater.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a satellite newspaper delivery system, and more particularly to a newspaper delivery system for instant delivery of newspapers using a satellite-mounted repeater.

[0002]

2. Description of the Related Art In a conventional newspaper delivery system, newspapers printed in the morning and evening are generally delivered from newspaper companies to collection and delivery centers nationwide by transportation vehicles, and then delivered to each home by a delivery person. is there.

[0003]

In this conventional newspaper delivery system, newspapers printed by newspaper publishers are delivered to collection points all over the country by a transportation vehicle, etc., and are delivered to families in the morning and evening. , There is a delay of at least several hours between printing and delivery. In addition, since it is delivered to each household, a large number of deliverers are required,
Moreover, there is a drawback that a large number of man-hours are required for delivery.

[0004]

A satellite newspaper delivery system according to the present invention is equipped with a data relay device and is used for transmitting satellite data to an artificial satellite which has been put into a sun-synchronous orbit in a twilight mode and the data relay device. With a newspaper company ground station,
The home terminal is installed in each home and receives and demodulates the newspaper data transmitted via the data relay device.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described with reference to the drawings. FIG. 1 is a system configuration diagram of an embodiment of the present invention, and FIG. 2 is an explanatory diagram of an orbit of an artificial satellite used in this embodiment. In the embodiment of FIG. 1, the terrestrial radio wave receiving antenna 2, the receiver 3, the amplifier 4, the transmitter 5 to the ground, the transmitting antenna 6 and the receiving antenna 2 on the ground which are mounted on the artificial satellite 1 are transmitted to the receiving antenna 2. It is comprised of a newspaper company ground station 7 and a home terminal 8 that receives radio waves from the transmitting antenna 6. On the other hand, as shown in FIG. 2, the sun-synchronous orbit 10 in the Twilight mode of the artificial satellite 1 that has been injected into the sun-synchronous orbit is an orbit when the orbit plane normal direction is almost the sun direction in the polar orbit. I am calling it. In this case, the sun-synchronous orbit 1
0 moves so as to almost cancel the rotation of the earth. Therefore, the orbit is characterized by the satellite always navigating over the area near the newspaper company ground station 7 at 6 am and 6 pm. Therefore, the newspaper company completes editing the newspaper data by 6 pm in the morning and transmits the newspaper data to the satellite when the satellite 1 flies over the newspaper company ground station 7.
In the satellite 1, the receiving antenna 2 and the receiver 3 which compose the newspaper data relay device receive, and after amplifying by the amplifier 4, the newspaper data is sent to each home terminal 8 using the transmitter 5 and the transmitting antenna 6. To send. At each home, newspaper data transmitted from the satellite is demodulated by the home terminal 8 at 6 am and 6 pm, and the newspaper is output.

[0006]

As described above, according to the present invention, since the newspaper data is distributed to each home by using the relay device mounted on the artificial satellite that travels in the twilight mode sun-synchronous orbit, the immediate distribution of the newspaper data is maintained. This has the effect of drastically reducing the number of manpower required for delivery and the number of delivery man-hours.

[Brief description of drawings]

FIG. 1 is a system configuration diagram of an embodiment of the present invention.

FIG. 2 is an explanatory diagram of a twilight mode sun-synchronous orbit according to the present embodiment.

[Explanation of symbols]

 1 Artificial Satellite 2 Receiving Antenna 3 Receiver 4 Amplifier 5 Transmitter 6 Transmitting Antenna 7 Newspaper Company Ground Station 8 Home Terminal 9 Earth 10 Twilight Mode Sun-synchronous Orbit

Claims (2)

[Claims] 1. A satellite equipped with a data relay device and placed in a sun-synchronous orbit in a twilight mode, and a newspaper company ground station for transmitting newspaper data to the data relay device,
A satellite newspaper delivery system, comprising: a home terminal installed in each home to receive and demodulate newspaper data transmitted via the data relay device. 2. The satellite newspaper delivery system according to claim 1, wherein the artificial satellite navigates over the newspaper company's ground station every morning at 6 pm and relays newspaper data.