JPH10307179A - Position measurement and communication system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the number of platforms to be processed and mitigate the operation conditions concerning wave transmission by arranging a position base station and a relay station on the same platform of a stationary airship and the like. SOLUTION: At a moving body 1, a position meter 2 observes position base stations 5 arranged on stationary airships 9a to 9c (platforms) and outputs the obtained position of the moving body 1. Then, in the moving body 1, a communicator 3 input with the position of the moving body 1 output by the position meter 2 transmits the position to the relay stations 7 arranged in the stationary stations 9a to 9c similarly to the position base station 5. The relay stations 7 receive the position of the moving body 1 and transmit it to a communication party 8. The communication party 8 receives the position of the moving body transmitted by the relay stations 7. Other necessary communication of task information and the like than the position of the moving body 1 is done between the moving body 1 and the communication party via the relay stations 7. Not only one directional communication from the moving body 1 to the communication party 8, but also bidirectional communication is done.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a positioning / communication system for performing position positioning in a mobile body and communicating with other information obtained as a result thereof to a communication partner via a wireless line. This positioning and communication system can be a taxi dispatch system, a commercial truck operation system, or
It supports our daily life as a news broadcaster management system.

[0002]

2. Description of the Related Art FIG. 4 is a conventional truck operation system supervised by Morishi Mizumachi, "Introduction to GPS", published on May 25, 1994, pages 124 to 127 by the Nikkan Kogyo Shimbun. 1 is a diagram showing a configuration of a positioning / communication system. In FIG. 4, 1 is a moving body such as a truck, 2 is a positioning device arranged on the moving body 1, and 3 is a communication device arranged on the moving body 1. 4 is a GPS satellite, and 5 is the GPS satellite 4
Is a position reference station located at. Here, GPS is
Global Positioning Stem
Is a radio positioning system developed by the United States Department of Defense. Although the use of the GPS is restricted, it is currently open to the private sector, and is used for car navigation and the like. Reference numeral 6 denotes a communication satellite, and reference numeral 7 denotes a relay station arranged on the communication satellite 6.
Finally, 8 is a communication partner. In this figure, radio waves for positioning are indicated by broken lines, radio waves for communication are indicated by solid lines,
Each is shown.

The operation of the above-described conventional positioning / communication system will be described below. First, in the mobile unit 1, the positioning unit 2
Observes the position reference station 5 located on the GPS satellite 4. Since the position reference station 5 transmits the radio wave indicating the transmission time, the positioning device 2 knows the time required for radio wave propagation from the reception time, and from this value, the position reference station 5 and the positioning device 2 Get the distance between. At the same time, since the position reference station 5 is broadcasting its position,
Calculates the position of the mobile unit 1 by using a plurality of (in most cases, four) distances and the corresponding positions of the position reference station 5. That is, the positioning device 2 obtains and outputs the position of the moving body 1.

Next, in the mobile unit 1, the communication device 3
The position of the moving body 1 output from the positioning device 2 is input,
This position is transmitted to the relay station 7 arranged on the communication satellite 6. Then, the relay station 7 arranged on the communication satellite 6
Receives the position of the mobile unit 1 transmitted by the communication device 3 in the mobile unit 1 and transmits the position to the communication partner 8.
The communication partner 8 receives the position of the mobile 1 transmitted by the relay station 7.

The relay station 7 arranged on the communication satellite 6
Between the mobile unit 2 and the communication partner 8 via the server, other than the position of the mobile unit 1, required business information, for example,
Communication is performed, including reporting of the progress of transportation work, notification of arrival times to customers, and inquiry of emergency information such as traffic disasters. Further, bidirectional communication is performed not only in one direction from the mobile unit 2 to the communication partner 8 but also in the opposite direction. For example, when the communication partner 8 is an operation management center, the luggage delivery is performed. A meeting is held with the mobile body, such as instructions and inquiries.

[0006]

In the conventional positioning / communication system, the GPS satellite 4 is used as the platform on which the position reference station 5 is arranged as described above, while the communication satellite 6 is used as the platform on which the relay station 7 is arranged. Therefore, there is a problem that it is necessary to perform a process for a large number of platforms, and that the radio wave propagation must be good between all of the platforms, and the operating conditions become severe.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and has as its object to reduce the number of platforms to be processed and to obtain a positioning / communication system in which operating conditions regarding radio wave propagation are moderate. Is what you do.

[0008]

[MEANS FOR SOLVING THE PROBLEMS] A positioning method according to the first aspect of the present invention.
In a communication system, a position reference station serving as a reference for positioning and a relay station for relaying communication are arranged on the same platform.

[0009] A positioning / communication system according to a second aspect of the present invention comprises:
The position reference station and the relay station are arranged on a platform located in the sky.

[0010] A positioning / communication system according to a third aspect of the present invention comprises:
The position reference station and the relay station are arranged on a platform lighter than air.

[0011] A positioning / communication system according to a fourth aspect of the present invention comprises:
The position reference station and the relay station are arranged on a stationary airship.

[0012] A positioning / communication system according to a fifth aspect of the present invention comprises:
The position reference station and the relay station are arranged on a mobile airship.

[0013] A positioning / communication system according to a sixth aspect of the present invention comprises:
The position reference station and the relay station are arranged on a balloon.

[0014] A positioning / communication system according to a seventh aspect of the present invention comprises:
The position reference station and the relay station are arranged on an aircraft.

[0015] A positioning / communication system according to an eighth aspect of the present invention comprises:
The position reference station and the relay station are arranged on a fixed wing aircraft.

A positioning / communication system according to a ninth aspect is:
The position reference station and the relay station are arranged on a rotary wing machine.

[0017] In a positioning / communication system according to a tenth aspect, the position reference station and the relay station are arranged on an artificial satellite.

[0018] In a positioning / communication system according to an eleventh aspect, the position reference station and the relay station are arranged on a geostationary satellite.

In a twelfth aspect of the present invention, the positioning / communication system is arranged such that the position reference station and the relay station are arranged on orbiting satellites.

[0020]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Some embodiments of a positioning / communication system according to the present invention will be described below with reference to the drawings.

Embodiment 1 FIG. 1 is a diagram showing a configuration of the first embodiment of the present invention. In FIG. 1, reference numeral 1 denotes a moving body such as a truck, 2 denotes a positioning device arranged on the moving body 1, and 3 denotes a communication device arranged on the moving body 1. Reference numeral 9 denotes a stationary airship, reference numeral 5 denotes a position reference station disposed on the stationary airship 9, and reference numeral 7 denotes a relay station disposed on the stationary airship 9. Finally, 8 is a communication partner. In this figure, the radio waves for positioning are indicated by broken lines, and the radio waves for communication are indicated by solid lines.

Next, the operation will be described. First, in the moving body 1, the positioning device 2 observes the position reference station 5 arranged on the stationary airship 9, and obtains the distance to the position reference station. At the same time, since the position reference station 5 broadcasts the position or uniquely identifies the position by identifying the platform, the positioning device 2 uses the plurality of distances and the corresponding distances. The position of the mobile unit 1 is obtained by using the position of the position reference station 5. That is, the positioning device 2 is connected to the moving body 1
Find the position of and output.

Next, in the mobile unit 1, the communication device 3 inputs the position of the mobile unit 1 output from the positioning device 2, and this position is arranged on the stationary airship 9 in the same manner as the position reference station 5. Transmit to relay station 7.

The relay station 7 disposed on the stationary airship 9 receives the position of the mobile unit 1 transmitted by the communication device 3 in the mobile unit 1 and transmits the position to the communication partner 8. The communication partner 8 receives the position of the mobile 1 transmitted by the relay station 7.

Between the mobile unit 2 and the communication partner 8 via the relay station 7 disposed on the stationary airship 9,
In addition to the position of the mobile unit 1, communication is also performed including necessary business information, for example, a report on the progress of transportation work, a notification of arrival time at a store to a customer, and an inquiry about emergency information such as a traffic disaster. . Further, bidirectional communication is performed not only in one direction from the mobile unit 2 to the communication partner 8 but also in the opposite direction. For example, when the communication partner 8 is an operation management center, the luggage delivery is performed. A meeting is held with the mobile body, such as instructions and inquiries.

Embodiment 2 FIG. FIG. 2 is a diagram showing a configuration of the second embodiment of the present invention. In FIG. 1, reference numeral 1 denotes a moving body such as a truck, 2 denotes a positioning device arranged on the moving body 1, and 3 denotes a communication device arranged on the moving body 1. 11 is a mobile airship, 12 is a fixed wing aircraft, and 13 is a rotary wing aircraft. Further, reference numerals 5 and 7 are a position reference station and a relay station, respectively, arranged on the mobile airship 11 or the fixed wing aircraft 12 and the rotary wing aircraft 13. Finally, 8 is a communication partner. In this figure, the radio waves for positioning are indicated by broken lines, and the radio waves for communication are indicated by solid lines.

Next, the operation will be described.

First, in the moving body 1, the positioning device 2 is a mobile airship 11, a fixed wing aircraft 12, and a rotary wing aircraft 13.
And obtains the distance to the position reference. At the same time, since the position reference station 5 broadcasts the position or uniquely identifies the position by identifying the platform, the positioning device 2 uses the plurality of distances and the corresponding distances. The position of the mobile unit 1 is obtained by using the position of the position reference station 5. That is, the positioning device 2
Calculates and outputs the position of the moving body 1.

Next, in the mobile unit 1, the communicator 3 inputs the position of the mobile unit 1 output from the positioning unit 2, and converts this position to the mobile airship 11 or the fixed It transmits to the relay station 7 arranged in the wing machine 12 and the rotary wing machine 13.

The mobile airship 11 or
The relay station 7 disposed on the fixed wing aircraft 12 and the rotary wing aircraft 13 receives the position of the mobile unit 1 transmitted by the communication device 3 in the mobile unit 1 and transmits the position to the communication partner 8. I do. The communication partner 8 receives the position of the mobile 1 transmitted by the relay station 7.

The relay station 7 disposed on the mobile airship 11 or the fixed wing aircraft 12 or the rotary wing aircraft 13
Between the mobile unit 2 and the communication partner 8 via the server, other than the position of the mobile unit 1, required business information, for example,
Communication is performed, including reporting of the progress of transportation work, notification of arrival times to customers, and inquiry of emergency information such as traffic disasters. Further, bidirectional communication is performed not only in one direction from the mobile unit 2 to the communication partner 8 but also in the opposite direction. For example, when the communication partner 8 is an operation management center, the luggage delivery is performed. A meeting is held with the mobile body, such as instructions and inquiries.

Embodiment 3 FIG. FIG. 3 is a diagram showing a configuration of the third embodiment of the present invention. In FIG. 1, reference numeral 1 denotes a moving body such as a truck, 2 denotes a positioning device arranged on the moving body 1, and 3 denotes a communication device arranged on the moving body 1. Reference numeral 14 denotes a geostationary satellite, and reference numeral 15 denotes an orbiting satellite. Further, reference numerals 5 and 7 are a position reference station and a relay station, respectively, arranged on the geostationary satellite 14 or the orbiting satellite 15. Finally, 8 is a communication partner. In this figure, the radio waves for positioning are indicated by broken lines, and the radio waves for communication are indicated by solid lines.

Next, the operation will be described. First, in the mobile unit 1, the positioning unit 2 observes the position reference station 5 arranged on the geostationary satellite 14 or the orbiting satellite 15, and obtains the distance to the position reference. At the same time, the position reference station 5
Since the position is broadcast, or the position is uniquely identified by identifying the platform, the positioning device 2 transmits the plurality of distances and the corresponding position reference station 5 The position of the moving body 1 is obtained by using the position. That is, the positioning device 2 obtains and outputs the position of the moving body 1.

Next, in the mobile unit 1, the communication unit 3 inputs the position of the mobile unit 1 output from the positioning unit 2, and uses this position as the geostationary satellite 14 or the orbiting station as in the case of the position reference station 5. The signal is transmitted to the relay station 7 arranged on the satellite 15.

Then, the relay station 7 disposed on the geostationary satellite 14 or the orbiting satellite 15 receives the position of the mobile unit 1 transmitted by the communication device 3 in the mobile unit 1, and Send to communication partner 8. The communication partner 8 receives the position of the mobile 1 transmitted by the relay station 7.

The mobile unit 2 via the relay station 7 arranged on the geostationary satellite 14 or the orbiting satellite 15
In addition to the position of the mobile unit 1, necessary business information such as a report on the progress of the transportation work, communication with the customer at the store arrival time, and emergency It performs communication including information inquiry. Further, bidirectional communication is performed not only in one direction from the mobile unit 2 to the communication partner 8 but also in the opposite direction. For example, when the communication partner 8 is an operation management center, the luggage delivery is performed. A meeting is held with the mobile body, such as instructions and inquiries.

[0037]

According to the first aspect of the present invention, it is possible to obtain a positioning / communication system which does not need to perform processing for a large number of platforms and has moderate operating conditions for radio wave propagation.

According to the second aspect, it is possible to obtain a positioning / communication system in which the condition of radio wave propagation between the user and the moving body is good.

According to the third aspect of the invention, it is possible to obtain a positioning / communication system in which energy required for keeping the platform in the air is saved.

According to the fourth aspect of the present invention, since the position reference station keeps a fixed position, the position can be uniquely identified by the platform identification, and a positioning / communication system that does not need to broadcast or calculate the position can be obtained.

According to the fifth aspect, it is possible to obtain a positioning / communication system capable of moving the position of the platform as required for communication and changing the arrangement of the platform group.

According to the sixth aspect of the present invention, the cost of the platform can be reduced, and no energy is required to keep the platform at a fixed position, and communication from the platform is connected to the ground line by wire. It is possible to obtain a positioning and communication system capable of performing the positioning.

According to the seventh aspect, since the platform can be easily landed on the ground and moored as required, a positioning / communication system which is easy to maintain and manage can be obtained.

According to the eighth aspect, it is possible to move the platform quickly according to the necessity of communication and to dynamically change the arrangement form of the platform group according to the necessity of communication. It is possible to obtain a simple positioning and communication system.

According to the ninth aspect, usually, the platform is maintained at a fixed position, and operation without broadcasting or calculation of the position is performed, and when necessary, the platform is moved, and positioning and communication are performed as needed. A positioning / communication system capable of providing a service can be obtained.

According to the tenth aspect, it is possible to obtain a positioning / communication system which does not need to resist disturbance such as wind in order to maintain the position of the platform and which is not easily destroyed.

According to the eleventh aspect, it is possible to obtain a positioning / communication system in which the position can be uniquely identified by the platform identification, and there is no need to broadcast or calculate the position.

According to the twelfth aspect, since the intensity of radio waves exchanged between the mobile unit, which is a user, and the platform can be relatively low, the positioning / positioning that can reduce power consumption and downsize the antenna can be performed. A communication system can be obtained.

[Brief description of the drawings]

FIG. 1 is a diagram showing a configuration of a positioning and communication system according to a first embodiment of the present invention.

FIG. 2 is a diagram showing a configuration of a positioning and communication system according to a second embodiment of the present invention.

FIG. 3 is a diagram showing a configuration of a positioning and communication system according to a third embodiment of the present invention;

FIG. 4 is a diagram showing a configuration of a conventional positioning / communication system.

[Explanation of symbols]

Reference Signs List 1 mobile body, 2 positioner, 3 communicator, 4 GPS satellite, 5 position reference station, 6 communication satellite, 7 relay station, 8 communication partner, 9 geostationary airship, 10 mobile airship, 11 balloon, 12 fixed wing aircraft, 13 rotation Wing, 14 geostationary satellites, 15 orbiting satellites.

Claims (12)

[Claims] 1. A positioning device that measures a position of a mobile body by observing a position reference station serving as a positioning reference, and transmits a position measured by the positioning device to a relay station that relays communication with the position reference station. In a positioning / communication system for providing a reference for positioning to the mobile unit having a communicator and relaying communication of the mobile unit, the position reference station and the relay station are the same. A positioning / communication system characterized by being arranged on a platform. 2. The positioning / communication system according to claim 1, wherein said location reference station and said relay station are arranged on a platform located in the sky. 3. The positioning / communication system according to claim 2, wherein said location reference station and said relay station are arranged on a platform lighter than air. 4. The positioning / communication system according to claim 3, wherein said position reference station and said relay station are arranged on a geostationary airship. 5. The positioning / communication system according to claim 3, wherein said position reference station and said relay station are arranged on a mobile airship. 6. The positioning / communication system according to claim 3, wherein said position reference station and said relay station are arranged on a balloon. 7. The positioning / communication system according to claim 2, wherein said position reference station and said relay station are arranged on an aircraft. 8. The positioning / positioning system according to claim 2, wherein the position reference station and the relay station are arranged on a fixed wing aircraft.
Communications system. 9. The positioning and positioning system according to claim 8, wherein said position reference station and said relay station are arranged on a rotary wing aircraft.
Communications system. 10. The positioning / communication system according to claim 2, wherein said position reference station and said relay station are arranged on an artificial satellite. 11. The positioning / communication system according to claim 10, wherein said position reference station and said relay station are arranged on a geostationary satellite. 12. The positioning / communication system according to claim 10, wherein said position reference station and said relay station are arranged on an orbiting satellite.