JP2002094315A - Radio wave monitor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a radio wave monitor that reduces the time required for completion of tracking to enhance processing efficiency. SOLUTION: The radio wave monitor uses antennas 1 to receive and monitor a radio wave emitted from a satellite. The monitor device is provided with the two antennas 1(#A, #B), which receive the radio wave. Two 1st antenna directive means 2 are provided to each of the antennas 1(#A, #B) and direct the antenna 1 so as to receive the radio waves emitted from the satellite. 2nd antenna directive means 5 directs the other antenna 1 in the direction of the antenna 1 directed by the 1st antenna directive means 2 when either of the antennas 1 receives the radio waves emitted from the satellite.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a radio wave monitoring device for tracking (acquiring) satellites,
The present invention relates to a radio wave monitoring apparatus including a plurality of antennas and performing satellite tracking in cooperation with the plurality of antennas.

[0002]

2. Description of the Related Art In general, a geostationary satellite receives an external force from the earth, the sun, the moon, or the like, and changes its inclination orbit and eccentricity, and often deviates from a predetermined stationary position. Therefore, when trying to measure the orbital position of the satellite, it is necessary to track the satellite using an antenna based on the determined stationary position.

As shown in FIG. 6, two antennas 1 (#
When tracking a satellite in the radio wave monitoring apparatus having (1, # 2), first, each host computer H
By the measurement instruction process 5 (# 1, # 2) of (# 1, # 2), each tracking information database 6 (#
1, # 2), the tracking information about the satellite to be tracked is extracted.

The tracking information is transmitted to the measurement control process 4 (# 1, # 1) of the local computer L (# 1, # 2).
# 2), they are taken into the antenna control unit 2 (# 1, # 2) via the antenna control process 3 (# 1, # 2).

[0005] Each antenna 1 (# 1, # 2)
Each antenna control unit 2 (# 1, # 2) is directed in the direction specified by the tracking information.

[0006] Each of the antennas 1 (# 1 and # 2) directed in the designated direction in this way starts tracking the satellite near the designated orbital position and captures the satellite. The tracking processing is completed by receiving the radio wave to be emitted and recognizing the direction in which the intensity of the received radio wave is maximum as the accurate position of the satellite.

On the other hand, if the satellite cannot be acquired,
The tracking of the satellite is performed for the next area specified by the tracking information, and the tracking is performed until the satellite is captured or the target area specified by the tracking information is exhausted to try to capture the satellite.

As described above, in the conventional radio wave monitoring equipment, even if a plurality of antennas 1 are held, each of the antennas 1 (# 1, # 2) has independent tracking information. Based on the information, the orbital positions are tracked by independently acquiring the satellites, and the radio waves from the satellites are measured.

[0009]

However, such a conventional radio wave monitoring device has the following problems.

That is, as described above, a conventional radio wave monitoring apparatus in which a plurality of antennas 1 (# 1, # 2) each independently track a satellite,
Even if the satellite tracking process is completed in (# 1), the next process cannot be performed until the satellite tracking process by the other antenna 1 (# 2) is completed.

Since the control systems of the two antennas 1 (# 1 and # 2) are completely independent, the information of the antenna 1 for which the tracking processing has been completed cannot be fed back to the other antenna 1. .

Therefore, if one of the antennas 1 (# 1)
Completes tracking in a short time and knows the position of the satellite, but the other antenna 1 (# 2)
Without utilizing the position data of the satellite captured by the antenna 1 (# 1) or the like, the satellite must be captured independently and independently, which is inefficient.

If both antennas 1 (# 1, # 2) complete the tracking process in about the same time, this is not a serious problem, but it is assumed that the other antenna 1 (# 2)
However, if the tracking process takes a long time, the antenna 1 (# 1) that has already completed the tracking,
Since the process cannot proceed to the next process unless the tracking process of the other antenna 1 (# 2) is completed, there is a problem that the processing efficiency of the entire radio wave monitoring device is reduced.

The present invention has been made in view of such circumstances, and reduces the time required for completing the tracking by all the antennas by performing the satellite tracking processing performed by a plurality of antennas in a coordinated manner. Accordingly, it is an object of the present invention to provide a radio wave monitoring device capable of improving processing efficiency.

[0015]

Means for Solving the Problems In order to achieve the above object, the present invention takes the following measures.

That is, according to the first aspect of the present invention, there is provided a radio wave monitoring apparatus for receiving and monitoring a radio wave emitted from a satellite by an antenna, comprising: a plurality of antennas for receiving a radio wave;
First antenna directing means provided on any one of the plurality of antennas and directing the antenna to receive radio waves emitted from a satellite; and an antenna directed by the first antenna directing means. Has a second antenna directing means for directing at least one of the other antennas in a direction in which the antenna is directed when a radio wave emitted from a satellite is received.

Therefore, in the radio wave monitoring apparatus according to the first aspect of the present invention, by taking the above-described means, it is possible to direct another antenna in the direction of the antenna that first catches the radio wave from the satellite. .

According to a second aspect of the present invention, there is provided a radio wave monitoring apparatus for receiving and monitoring a radio wave emitted from a satellite by an antenna, wherein the first and second antennas receive the radio wave;
First antenna directing means for directing the first antenna to receive a radio wave emitted from a satellite; and, when the first antenna receives a radio wave emitted from a satellite, the first antenna directs the received radio wave. A tracking unit for performing a tracking process for recognizing the position of the satellite, and, when the tracking process is performed by the tracking unit, directing the second antenna in a direction in which the first antenna is directed. And second antenna directing means.

Therefore, in the radio wave monitoring apparatus according to the second aspect of the present invention, the first means is provided by taking the above-described means.
The tracking processing is performed by the antenna of (1), and the second antenna can be directed to the direction of the first antenna.

According to a third aspect of the present invention, in the radio wave monitoring apparatus according to the first or second aspect of the present invention, the radio wave monitoring apparatus is provided for each antenna and receives the radio wave emitted from the satellite by the first antenna directing means. Receiving a radio wave emitted from a satellite by using a directed antenna and an antenna directed in this direction by a second antenna directing means;
There is provided satellite information acquisition means for acquiring information on satellites from the received radio waves.

Therefore, in the radio wave monitoring apparatus according to the third aspect of the present invention, by taking the above means, it is possible to acquire information on the satellite from the radio wave received from the satellite.

According to a fourth aspect of the present invention, in the radio wave monitoring apparatus of the first or second aspect, when the antenna pointed by the second antenna pointing means cannot receive a radio wave emitted from a satellite, , The second antenna directing means directs the antenna to receive radio waves emitted from the satellite.

Therefore, in the radio wave monitoring apparatus according to the fourth aspect of the present invention, by taking the above means, the second
Even if the antenna pointed by the antenna pointing means cannot receive the radio wave, the second antenna pointing means can independently receive the radio wave from the satellite.

According to a fifth aspect of the present invention, in the radio wave monitoring apparatus according to the first or second aspect of the present invention, after each antenna is pointed by the first and second antenna directing means, each antenna is moved by moving the satellite. If it becomes impossible to receive the radio wave emitted from the satellite, the first and second antenna directing units individually point each antenna to receive the radio wave emitted from the satellite.

Therefore, in the radio wave monitoring apparatus according to the fifth aspect of the present invention, by taking the above-described means, even if the satellite moves, the first and second antenna directing means can control the distance from the satellite. Radio waves can be received.

[0026]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS.

The same reference numerals in the drawings used in the following description of the present embodiment denote the same parts as in FIG.

FIG. 1 is a configuration diagram showing an example of the overall configuration of a radio wave monitoring device according to an embodiment of the present invention.

The radio wave monitoring apparatus according to the present embodiment includes two facilities A and B having the same configuration, a host computer H common to the facilities A and B, and a tracking information database 6 common to the facilities A and B. Have.

Further, each of the facilities A and B includes an antenna 1, an antenna control unit 2, and a local computer L, respectively.

The tracking information database 6 stores tracking information on a satellite to be tracked.

The host computer H retrieves the tracking information from the tracking information database 6. Also, according to the radio wave measurement request specified by the operator,
Based on this tracking information, each facility A,
A measurement instruction process 5 for issuing a measurement instruction request to the local computer L (#A, #B) side of B is provided.

On the basis of the measurement instruction request from the measurement instruction process 5, the local computer L
A measurement control process 4 for creating an operation request signal for the antenna 1 belonging to B and an operation request signal from the measurement control process 4 in the same local computer L for controlling the antennas 1 belonging to the same equipment A and B. Antenna control unit 2 that creates an antenna control command as a command and connects to its own local computer L
, And an antenna control process 3 for transmitting to

Each antenna control unit 2 performs an antenna control process 3 of the local computer L and an antenna 1
And is interposed between them.

Each antenna control unit 2 receives an antenna control command transmitted from the antenna control process 3 to which it is connected, and points the antenna 1 to which it is connected according to the antenna control command. And control.

The antenna 1 is controlled in accordance with an antenna control command transmitted from the antenna control unit 2 to which the antenna 1 is connected. When a radio wave emitted from a satellite (not shown) is received, tracking processing and other various measurements are performed based on a request from the operator.

Next, the operation of the radio wave monitoring apparatus according to the embodiment of the present invention configured as described above will be described with reference to the flowchart shown in FIG.

As shown in the flowchart of FIG. 2, the radio wave monitoring apparatus according to the embodiment of the present invention has two facilities when the antenna 1 captures a satellite by receiving a radio wave emitted from the satellite. Of A and B, satellite acquisition is basically performed on the basis of the equipment (equipment A or equipment B) for which satellite acquisition has been completed first.

The other equipment (equipment A or equipment B) has its own antenna 1 in the same direction as the antenna 1 of the equipment (equipment A or equipment B) that has acquired the satellite. Is to be oriented.

When an instruction to capture a satellite is issued from the measurement instruction process 5 to the equipments A and B according to an instruction from the operator, the antennas 1 of the equipments A and B respond to the antenna control command from the antenna control unit 2 respectively. Therefore, the pointing is performed (S1), and the tracking process is started (S2).

The tracking process is successful in at least one of the antenna 1 (#A) of the facility A and the antenna 1 (#B) of the facility B (S3). In some cases, a measurement suspension request is transmitted from the measurement instruction process 5 to the equipment B. Further, the measurement instruction process 5 instructs the equipment B to point the antenna 1 (#B) of the equipment B in cooperation with the direction of the antenna 1 (#A) of the equipment A whose tracking is successful, The antenna 1 (#B) is pointed based on this instruction (S4).

On the other hand, if the equipment that has been successfully tracked is the equipment B, a tracking interruption request is transmitted from the measurement instruction process 5 to the equipment A. Further, the antenna 1 of the equipment A is sent from the measurement instruction process 5 to the equipment A.
An instruction is given to point (#A) cooperatively to the direction of antenna 1 (#B) of facility B for which tracking was successful, and antenna 1 (#A) is pointed based on this instruction (S5). .

When the tracking fails in at least one of the facility A and the facility B (S6) and the facility in which the tracking failed is the facility A,
The facility A is in a waiting state, and an instruction is issued to wait for the result of the tracking performed in the facility B (S7). If the tracking is successful in the facility B, the facility B
Is instructed to cooperate with the facility A and direct the antenna 1 (#A) of the facility A in the same direction as the antenna 1 (#B) of the facility B. Based on this instruction, the antenna 1 (#B) is Pointed (S8).

Similarly, when the tracking fails in at least one of the facilities A and B (S6) and the facility in which the tracking failed is the facility B,
The facility B enters a waiting state, and an instruction is issued to wait for the result of the tracking performed by the facility A (S9). If the tracking is successful in the facility A, the facility A
Is instructed to cooperate with the equipment B and direct the antenna 1 (#B) of the equipment B to the same direction as the antenna 1 (#A) of the equipment A. Based on this instruction, the antenna 1 (#A) It is pointed (S10).

In this way, each of the antennas 1 in the facilities A and B cooperates with each other in the respective facilities.
After the orientation of the position of (#A, #B) is completed, the measurement of the measurement item is performed (S11).

The present invention is not limited to the above operation, but can be operated in the following manner.

That is, it is also possible to always perform tracking in one of the facilities A and B, and if this facility succeeds in tracking, the antenna 1 of the other facility can be pointed in the same direction. It is. Such an operation will be described with reference to the flowchart shown in FIG.

Here, of equipment A and equipment B, equipment A
, As a master, a facility that always performs tracking,
It is assumed that the azimuth of the antenna 1 (#B) is directed to the azimuth of the antenna 1 (#A) based on the tracking result performed by the equipment A, with the equipment B as a slave.

First, the coordination-orientation request information is transmitted from the measurement instruction process 5 of the host computer H to the equipment A on the master side. The cooperative pointing request information is received by the measurement control process 4 (#A) of the facility A, the antenna 1 (#A) is pointed (S21), the tracking process is performed, and the measurement control process 4 (#A) is performed. ), The azimuth information of the antenna 1 (#A) is transmitted to the measurement instruction process 5 as a cooperative directional response (S22).

Meanwhile, during the measurement instruction process 5,
Tracking interruption request information is transmitted to the equipment B on the slave side, and the tracking interruption request information is received by the measurement control process 4 (#B) of the equipment B, and the tracking processing in the equipment B is interrupted.

In step S22, when the azimuth information is transmitted from the measurement control process 4 (#A) to the measurement instruction process 5 as a cooperative directional response, the measurement instruction process 5 sends the equipment A In cooperation with
Cooperation request information for instructing the antenna 1 (#B) to point based on the direction information is transmitted (S23).

The antenna 1 (#B) of the facility B is directed to the azimuth of the antenna 1 (#A) based on the coordination request information, and measurement is performed (S24).

As shown in FIG. 4, the operation of the antenna in the equipment A, which is once the master, is pointed (S2).
1), the tracking is performed (S22), the equipment B is coordinated with the equipment A (S23), and the measurement is performed (S2).
If the satellite moves during 4), the tracking may be performed after the azimuth is adjusted using the cooperative function again (S25).

Since the tracking of the satellite during such a measurement is a very small amount of movement, as shown in FIG.
The tracking may be performed independently for each of the facilities B (S26).

The part from the measurement instruction process 5 in the above embodiment to the antenna control unit 2 via the local computer L corresponds to an antenna pointing means in the claims.

In the case of claim 1, the portion from the measurement instruction process 5 to the antenna control unit 2 (#A) via the local computer L (#A), and the measurement instruction process 5 via the local computer L (#B). All the parts up to the antenna control unit 2 (#B) correspond to the first antenna directing means, and at the same time, from the measurement instruction process 5 on the equipment side where the satellite acquisition is slow, the local computer L
The portion up to the antenna control unit 2 via the terminal also corresponds to the second antenna directing means.

In the case of claim 2, the part on the equipment A side which is the master, that is, the antenna control unit 2 via the local computer L (#A) from the measurement instruction process 5
The part up to (#A) corresponds to the first antenna directing means, and is a part on the equipment B side as a slave, that is, the antenna control unit 2 (#) from the measurement instruction process 5 via the local computer L (#B). The part up to B) is the second
Antenna directing means.

Also, the antenna 1 in the above embodiment,
Alternatively, a portion from the antenna 1 to the measurement instruction process 5 via the antenna control unit 2 and the local computer L corresponds to a tracking unit and a satellite information acquisition unit described in claims.

As described above, in the radio wave monitoring device according to the embodiment of the present invention,
When a satellite is acquired, the equipment A and the equipment B can perform tracking in cooperation with each other.

As a result, not only can tracking be efficiently performed and the time required for tracking processing can be reduced, but also if the tracking fails in one of the facilities, the azimuth that has succeeded in the other facility can be reduced. By directing the antenna to the antenna, it is possible to reliably capture the satellite.

The preferred embodiment of the present invention has been described with reference to the accompanying drawings, but the present invention is not limited to this configuration. Within the scope of the invented technical concept described in the claims, those skilled in the art will be able to conceive various modified examples and modified examples, and these modified examples and modified examples are also within the technical scope of the present invention. It is understood that it belongs to.

For example, in the above-described embodiment, the radio wave monitoring apparatus including two antennas 1 and the equipments A and B for controlling the antennas 1 has been described as an example. Even so, the idea of the present invention can be applied.

[0063]

As described above, according to the present invention,
By coordinating the satellite tracking process performed by multiple antennas, it is possible to reduce the time required for completing the tracking by all antennas, thereby improving the processing efficiency. The device can be realized.

[Brief description of the drawings]

FIG. 1 is a configuration diagram showing an example of an overall configuration of a radio wave monitoring device according to an embodiment of the present invention.

FIG. 2 is a flowchart showing the operation of the radio wave monitoring device according to the embodiment of the present invention.

FIG. 3. When one of the equipments succeeds in tracking,
Flow chart showing the operation when cooperating the other equipment

FIG. 4 is a flowchart showing an operation in a case where tracking is performed in cooperation again when a satellite moves.

FIG. 5 is a flowchart showing an operation when tracking is performed independently when a satellite moves.

FIG. 6 is a configuration diagram of a radio wave monitoring device having a plurality of antennas according to the related art.

[Explanation of symbols]

 H: Host computer L: Local computer A, B: Equipment 1: Antenna 2: Antenna control unit 3: Antenna control process 4: Measurement control process 5: Measurement instruction process 6: Tracking information database

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 5J021 AA02 AB07 CA06 DA02 EA04 FA14 FA15 FA16 FA17 FA20 GA02 HA05 HA07 5K042 AA05 CA17 DA19 EA14 FA11 FA15 GA12 LA15 NA03 NA04

Claims (5)

[Claims] 1. A radio wave monitoring apparatus for receiving and monitoring a radio wave emitted from a satellite by an antenna, comprising: a plurality of antennas for receiving a radio wave; and one of the plurality of antennas, A first antenna directing unit for directing the antenna to receive a radio wave emitted from a satellite, and an antenna pointed by the first antenna directing unit receives a radio wave emitted from the satellite. A second antenna directing means for directing at least one of the other antennas in a direction in which the antenna is directed. 2. A radio wave monitoring apparatus for receiving and monitoring a radio wave emitted from a satellite by an antenna, comprising: first and second antennas for receiving a radio wave; First antenna pointing means for pointing to receive a radio wave, and when the first antenna receives a radio wave emitted from the satellite, the position of the satellite is determined using the received radio wave. A tracking unit that performs a tracking process that is a recognition process; and a second antenna that directs the second antenna in a direction in which the first antenna is directed when the tracking process is performed by the tracking unit. A radio wave monitoring device comprising: a pointing device. 3. The radio wave monitoring device according to claim 1, wherein the radio wave monitoring device is provided for each of the antennas and is directed to receive a radio wave emitted from the satellite by the first antenna directing unit. Using the antenna and the antenna pointed in this direction by the second antenna pointing means, receives a radio wave emitted from the satellite, and obtains information about the satellite from the received radio wave. A radio wave monitoring device comprising satellite information acquisition means. 4. The radio wave monitoring device according to claim 1, wherein the antenna pointed by the second antenna pointing unit cannot receive the radio wave emitted from the satellite, 2. A radio wave monitoring apparatus according to claim 2, wherein the antenna directing means directs the antenna to receive a radio wave emitted from a satellite. 5. The radio wave monitoring device according to claim 1, wherein each antenna is pointed by the first and second antenna directing means, and then the respective antennas are moved by the movement of the satellite. When the radio waves emitted from the satellite cannot be received, the first and second antenna directing units independently direct each antenna to receive the radio waves emitted from the satellite. Characteristic radio wave monitoring device.