JPH03210491A - Surveying apparatus - Google Patents

Abstract

PURPOSE:To enhance the transmission efficiency or accuracy of observation data by calculating the direction of a master station looked from a daughter station using the absolute position of the master station and that of the daughter station stored in the memory device of the daughter station to display the same. CONSTITUTION:A relative position operation apparatus 11 operates a relative position from the absolute position of a master station B stored in a master station absolute position memory device 10 and the absolute position obtained by receiving the signal from the artificial satellite C of GPS by a daughter station A. A display device 12 displays the direction obtained by this operation of the master station B looked from the daughter station A. A phase data obtaining receiver 3 obtains the phase data of the carrier wave of the signal received from the artificial satellite C and a daughter station phase data obtaining receiver 4 transmits the obtained phase data in the daughter station A to the master station B through a transmission antenna 5. As a result, by directing the transmission antenna 5 toward the master station B according to the display of the display device 12, the phase data can be transmitted to the master station B.

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention is applied to a surveying system that uses signals sent from artificial satellites such as GPS as observation data.

[Prior art] Conventionally, in interferometric surveying systems that use multiple receivers to receive signals sent from artificial satellites such as GPS and relatively observe the phase difference of each received radio wave, the reference of each receiver is The receivers are connected to each other using cables to synchronize their phases. Therefore, this interferometric surveying system had the problem that the surveying locations were restricted by cables.

Therefore, as shown in FIG. 9, a surveying system that synchronizes using wireless communication means is provided.

In this case, the slave station A includes an absolute positioning receiver 2 that receives signals from GPS satellites CL with a receiving antenna 1 and measures the absolute position of the receiving antenna 1, and an absolute positioning receiver 2 that measures the absolute position of the receiving antenna 1. A phase information acquisition receiver 3 that acquires phase information, a slave station phase information transmitter 4 that transmits the acquired phase information to the master station B using a wireless signal such as a radio wave, and a transmitting antenna 5 that is a radiating means. In preparation, the master station B has an absolute positioning receiver 2' that receives signals from the GPS satellite C with a receiving antenna 1' and measures the absolute position of the receiving antenna 1', and the received signal. A phase information acquisition receiver 3° that acquires phase information of a carrier wave of It is equipped with a relative position 1 calculation device 6 that calculates a relative position from the phase information and the phase information acquired by the phase information acquisition receiver 3°.

[Question M to be solved by the invention] By the way, in the case of a system that transmits phase information from slave station A to master station B using wireless signals as described above, interference with other systems may occur at large-scale survey locations. There were other problems, such as the need for long-distance wireless communication and the need for high-power wireless equipment.

The present invention has been made in view of the above-mentioned problems, and the object thereof is to direct the radiation means of the slave station in the direction of the master station when performing wireless communication. The object of the present invention is to provide a surveying system that can avoid unnecessary communication interference and improve transmission efficiency and accuracy of observation data.

In addition to the object of the invention set forth in claim 1, it is an object of the invention set forth in claim 2 to provide a surveying system in which the radiation means of a slave station can be easily directed toward a master station.

Furthermore, the invention according to claim 3 is characterized in that, in addition to the object of the invention according to claim 1 or claim 2, the invention according to claim 4 provides a surveying system that can also reduce the power of the transmitter. When conducting wireless communication, the receiving means of the master station can be directed towards the slave station, thereby avoiding unnecessary communication interference and improving the transmission efficiency and accuracy of observation data. The purpose is to provide a system.

Further, the invention as set forth in claim 5 is characterized in that, in addition to the object of the invention as set forth in claim 4, there is provided a surveying system in which receiving means of a master station can be easily directed to a slave station. The present invention aims to provide a surveying system that can request a slave station to transmit phase information again if there is a transmission error, thereby increasing the reliability of transmission and improving the transmission efficiency and accuracy of observation data. In addition to the object of the invention described in claim 6, the invention as defined in claim 7 is characterized in that it is an object of the invention to provide a surveying system in which the radiation means of the slave station can be easily directed toward the master station.

Furthermore, in addition to the object of the invention set forth in claim 6, the invention set forth in claim 8 aims to provide a surveying system that can also reduce the power consumption of a transmitter.

[Means for Solving the Problems] The invention as set forth in claim 1 of the present invention provides a receiving antenna that receives signals sent from an artificial satellite such as a GPS, and a receiving antenna that decodes the received signal and determines the absolute outline of the receiving antenna. An absolute positioning receiver that measures the position, a phase information acquisition receiver that acquires the phase information of the carrier wave of the received signal, and a slave station phase information that transmits the phase information to the master station as a wireless signal such as radio waves or light. It has a slave station equipped with a transmitter and a radiation means such as an antenna or a light emitting element for radiating the wireless signal sent from the slave station phase shift information transmitter, and also receives signals sent from artificial satellites such as GPS. and another absolute positioning receiver for decoding the received signal to determine the approximate absolute position of the other receiving antenna, and another phase information for obtaining carrier phase information of the received signal. An acquisition receiver, a receiving means such as an antenna or a light receiving element that receives the phase information sent from the slave station, and a slave phase information receiver, and the phase information obtained by the own station regarding the same satellite. Multiple receivers configured with a master station equipped with a relative position calculation device that measures the phase difference between the station and the phase information sent from the station and calculates the relative position between the local station and the slave station. Depending on the device, GPS
In a surveying system in which observation data of signals sent from artificial satellites such as an input means, another relative position calculation device that calculates the direction of the master station as seen from the slave station using the absolute position of the master station stored in the storage device and the absolute position of the slave station; The device is equipped with a display device for displaying images.

According to a second aspect of the invention, the slave station according to the first aspect of the invention is provided with a drive device for directing a radiating means such as a transmitting antenna or a light emitting element toward the master station.

According to a third aspect of the invention, the slave station according to the first or second aspect of the invention includes an output control device that controls the output of the slave station phase information transmitter according to the distance to the master station.

In the invention as set forth in claim 4, the slave station is provided with a means for transmitting data on the approximate absolute position of the slave station in addition to the phase information to be transmitted, and the master station is provided with means for transmitting the absolute position data of the slave station received. The apparatus further includes another relative position calculation device for calculating the direction of the slave station as seen from the master station, and another display device for displaying the direction.

According to a fifth aspect of the invention, the master station according to the fourth aspect is provided with a drive device for directing receiving means such as a receiving antenna and a light receiving element toward the slave station.

In the invention as claimed in claim 6, the slave station is provided with means for transmitting data on the approximate absolute position of the slave station in addition to the phase information to be transmitted, and the master station is provided with means for transmitting data on the approximate absolute position of the slave station in addition to the phase information to be transmitted. Another relative position calculation device that calculates the approximate relative position of the slave station as seen from the master station, and another relative position that calculates the relative position of the slave station from the calculation result of the relative position calculation device and the phase difference. A comparison device that compares the calculation results of the calculation device, and a retransmission request transmission that sends a wireless signal using another radiation means such as a transmission antenna or a light emitting element to send a retransmission request signal that causes the slave station to resend phase information based on the comparison result. It is equipped with a machine.

The invention set forth in claim 7 is characterized in that the master station according to claim 6 is provided with a drive device for directing the radiation means of the retransmission request transmitter toward the slave station.

The invention according to claim 8 is the invention according to claim 6, in which the master station is provided with another output control device that controls the transmission output of the retransmission request transmitter according to the distance to the slave station.

[Function] According to the invention as claimed in claim 1 or 4, since the direction of the partner station to which observation data is to be transmitted is displayed at the slave station or the master station, a radiating means such as an antenna having directivity in that direction is used. In other words, the receiving means can be directed, and therefore the transmission efficiency and accuracy of observation data can be improved, and unnecessary interference can be avoided.

Furthermore, in the invention as set forth in claim 2 or 5, by performing the pointing operation using the driving device, it is possible to improve the pointing performance toward the partner station, and it is possible to transmit better observation data. According to the third aspect of the invention, since the output control device prevents observation data from being transmitted using excessive power, it is possible to reduce the power of the transmitter and also avoid unnecessary interference.

Furthermore, in the invention as set forth in claim 6, if a transmission error occurs in the transmission of observation data, it is possible to have the other station retransmit it, so that the reliability of transmission is improved and the efficiency and accuracy of transmission of observation data are improved. be able to. Furthermore, the invention according to claim 7 is the invention according to claim 6, by performing the above operation using the drive device, it is possible to improve the directivity performance toward the other station, and to achieve better transmission of observation data. I can do it. Furthermore, the invention described in claim 8 is defined as claim 6.
In the described invention, since the output control device prevents observation data from being transmitted using extra power, it is possible to reduce the power of the transmitter and also avoid unnecessary interference.

[Example] The present invention will be explained below with reference to Examples.

! As shown in FIG. 1, this embodiment includes a master station absolute position storage device 10 for storing the absolute position of the master station B in the slave station A, and a keyboard or the like for inputting the absolute position data of the master station B. An input device 9, an absolute positioning receiver 2 that receives a signal from a GPS satellite C through the receiving antenna 1 and measures the absolute position of the slave station A, and input from the input device 9,
Relative position calculation that calculates the relative position from the absolute position of the master station B stored in the master station absolute position storage device 10 and the absolute position obtained by receiving signals from the GPS satellite C at the slave station A. device 11, a display device 12 that displays the direction of the master station B as seen from the slave station A calculated by the relative position calculation device 11, and a phase of the carrier wave of the signal received from the GPS satellite C. A phase information acquisition receiver 3 that acquires information, and a slave station phase information transmission that transmits the phase information in the slave station A acquired by this receiver 3 to the master station B using radio waves, for example, through a transmitting antenna 5 serving as a radiating means. It consists of machine 4.

In this embodiment, the phase information can be transmitted toward the master station B by directing the transmitting antenna 5 in the direction of the master station B according to the display on the display device 12. As a result, the directional antenna of the transmitting antenna 5 can be used, interference with other systems can be reduced as much as possible, and the transmission efficiency and accuracy of observation data can be improved.

1192 As shown in FIG.
The transmission direction of the transmitting antenna 5 is automatically directed to the master station B by
Since it is possible to direct the transmitting antenna 5 toward the target, it is possible to further improve the transmission efficiency and accuracy of observation data.

As shown in FIG.
The output control device 14 is configured to control the transmission power according to the distance between the slave station A and the master station B. Power consumption can be reduced, and unnecessary interference with other systems can be reduced.

夾JLfLL This example is for the master station B as shown in FIG.
Absolute positioning that measures the absolute position of the master station B by receiving absolute position data 15 of the slave station through the reception antenna 8 and a signal from the GPS satellite C through the reception antenna 1' a receiver 2', a relative position calculation device 16 that calculates the relative position of the master station B and the slave station A using the absolute position data of the master station B and the received slave station absolute position data; A display device 17 that displays the direction of the slave station A as seen from the master station B obtained by calculation by the arithmetic device 16, and a phase information acquisition device that acquires phase information of the carrier wave of the signal received from the GPS satellite C. receiver 3°
A slave station phase information receiver 7 receives the slave station phase information transmitted from slave station A, and determines the relationship between the master station B and slave station A based on the phase information of the master station B and the phase information of the slave station A. and a relative position calculation device 6 that calculates the relative position of.

In the embodiment, information from the slave station A can be received by directing the receiving antenna 5 toward the slave station A according to the display on the display device f17, and as a result, the transmission efficiency and accuracy of observation data can be improved. In this case, the slave station A needs to be equipped with a means for transmitting the absolute position data of the slave station A along with the phase information.■5 This embodiment is implemented as shown in FIG. In the configuration of Example 4, the reception antenna driving device 218 is provided, and the relative position calculation device [
Based on the calculation data of 16, the receiving antenna driving device 18
The reception direction of the receiving antenna 8 is automatically directed toward the slave station A, and the direction of reception of the receiving antenna 8 can be directed toward the slave station A more accurately than in the fourth embodiment, so that the transmission efficiency and accuracy of observation data can be further improved. be able to.

In this embodiment, as shown in FIG. 6, the master station B performs positioning using the absolute position data of the slave station A received by the slave station absolute position receiver 15 and the absolute value 1 positioning receiver 2'. The approximate relative position is calculated by the relative position calculation device 16 from the position data of the master station A, and the precise relative position is calculated by the relative position calculation device 6 separately obtained from the phase shift information by the comparison device 19. Comparison 1-1 If the results are significantly different, it is determined that there is an error in the acquisition or transmission of the phase information, and a retransmission request signal is sent from the retransmission request signal transmitter 20 through the transmission antenna 21 to make the slave station A transmit the phase information again. do.

As a result, in this embodiment, it is possible to improve the transmission efficiency and accuracy of observation data, and to check data in real time, thereby preventing acquisition errors.

! Seed 1 As shown in FIG. 7, this embodiment has the configuration of Embodiment 6, but is equipped with a transmitting antenna driving device 22 for the transmitting antenna 21. Since the transmitting antenna 21 can be directed to
A directional antenna can be used as the transmitting antenna 21, and as a result, interference with other systems caused by the retransmission request signal can be suppressed as much as possible.

As shown in FIG. 8, this embodiment has the configuration of Embodiment 7, but is equipped with an output control device 23 to convert the output of the retransmission request signal transmitter 20 to the output of the relative position calculation device 16. Since it can be controlled according to the distance between station A and master station B, the power of the retransmission request signal transmitter 20 can be reduced, and unnecessary interference to other systems can be further reduced. I can do it.

Thus, by using a plurality of receiving devices in which the slave station A and the master station B of each of the above embodiments are appropriately combined, a surveying system can be constructed.

[Effects of the Invention] The invention as claimed in claim 1 is a surveying system configured as described above, wherein the slave station includes a storage device for storing absolute position data of the master station and an input means for inputting the absolute position data. , another relative position calculation device that calculates the direction of the master station from the slave station using the absolute position of the master station stored in the storage device and the absolute position of the slave station, and a display that displays the direction. In addition, the direction of the master station transmitting observation data can be displayed on the display device in the slave station, so that a radiating means such as a directional antenna can be directed in the displayed direction. This has the effect of improving the transmission efficiency and accuracy of the resulting observation data, as well as avoiding unnecessary interference.

In the invention as claimed in claim 2, in the slave station according to the invention as claimed in claim 1, the driving device is provided for directing the transmitting antenna, the light emitting element, etc. toward the master station. By using the directional operation of the radiation means,
It becomes possible to improve the directivity performance toward the master station, which has the effect of enabling better transmission of observation data.

The invention according to claim 3 is characterized in that the slave station according to the invention according to claim 1 or 2 is equipped with an output control device that controls the output of the slave station phase information transmitter according to the distance to the master station. , the output control device can prevent observation data from being transmitted using extra power, which has the effect of reducing the power of the transmitter and avoiding unnecessary interference.

In the invention as set forth in claim 4, the slave station is provided with means for transmitting data on the approximate absolute position of the slave station in addition to the phase information to be transmitted, and the master station is provided with means for transmitting data on the approximate absolute position of the slave station in addition to the phase information to be transmitted. Since the slave station is equipped with another relative position calculation device that calculates the direction of the slave station as seen from the master station, and another display device that displays the direction, the slave station transmits observation data from the master station. Therefore, it is possible to direct a receiving means such as a directional antenna in the displayed direction, and as a result, it is possible to improve the transmission efficiency and accuracy of observation data, and also to eliminate unnecessary This has the effect of avoiding interference.

The invention according to claim 5 is the master station according to claim 4, which is equipped with a driving device that directs the receiving means such as a receiving antenna and a light receiving element in the direction of the slave station. By performing the directional operation of the means,
It becomes possible to improve the directivity performance toward the other station, and the effect is that better observation data can be transmitted.

The invention according to claim 6 provides a surveying system, in which the slave station is provided with means for transmitting data on the approximate absolute position of the slave station in addition to the phase information to be transmitted, and the master station is provided with means for transmitting data on the approximate absolute position of the slave station in addition to the phase information to be transmitted. Another relative position calculation device that calculates the approximate relative position of the slave station from the master station based on the position data, and another device that calculates the relative position of the slave station from the calculation result of the relative position calculation device and the phase difference. A comparison device that compares the calculation results of the relative position calculation device, and a retransmission device that sends a wireless signal using another radiation means such as a transmission antenna or a light emitting element to send out a retransmission request signal that causes the slave station to resend phase information based on the comparison result. Since it is equipped with a request transmitter, if a transmission error occurs when transmitting observation data, it can be retransmitted to the slave station, improving transmission reliability and improving observation data transmission efficiency. This has the effect of further improving accuracy.

The invention set forth in claim 7 is the invention set forth in claim 6, since the master station is provided with a drive device for directing the radiation means of the retransmission request transmitter toward the slave station. Similar effects can be obtained, and the invention according to claim 8 is the invention according to claim 6, in which the master station is provided with an output control device for controlling the transmission output of the retransmission request transmitter according to the distance to the slave station. Therefore, it is possible to reduce the power consumption of the transmitter.

[Brief explanation of drawings]

FIG. 1 is a configuration diagram of a slave station according to Embodiment 1 of the present invention, FIG. 2 is a configuration diagram of a slave station according to Embodiment 2 of the present invention, and FIG. 3 is a configuration diagram of a slave station according to Embodiment 3 of the present invention. , FIG. 4 is a configuration diagram of a master station according to a fourth embodiment of the present invention, and FIG. 5 is a configuration diagram of a master station according to a fifth embodiment of the present invention.
FIG. 6 is a configuration diagram of a master station according to a sixth embodiment of the present invention, FIG. 7 is a configuration diagram of a master station according to a seventh embodiment of the present invention, and FIG. 8 is a configuration diagram of a master station according to an eighth embodiment of the present invention. , FIG. 9 is an overall configuration diagram of a conventional example. 1.1 is a receiving antenna, 2.2″ is an absolute positioning receiver, 3.3° is a phase information acquisition receiver, 4 is a slave station phase information transmitter, 5 is a transmitting antenna, 6 is a relative position calculation device, 7
1 is a slave station phase information receiver, 8 is a reception antenna, 9 is an input device, 10 is a master station absolute position storage device, 11 is a relative position calculation device, 12 is a display device, 13 is a transmission antenna drive device,
14 is an output control device,] 5 is a slave station absolute position receiver, 16
1 is a relative position calculation device, 17 is a display device, 18 is a reception antenna drive device, 19 is a comparison device, 20 is a retransmission request signal transmitter, 21 is a transmission antenna, 22 is a transmission antenna drive device, A is a slave station, and B is a slave station. The master station, C, is an artificial satellite.

Claims (8)

[Claims] (1) A receiving antenna that receives signals sent from artificial satellites such as GPS, an absolute positioning receiver that decodes the received signals and determines the approximate absolute position of the receiving antenna, and a carrier wave of the received signal. a phase information acquisition receiver that acquires phase information; a slave station phase information transmitter that transmits the phase information to the master station as a wireless signal such as radio waves or light; and a wireless signal that is transmitted from the slave station phase shift information transmitter. In addition to having a slave station equipped with a radiating means such as an antenna and a light emitting element for radiating a signal,
Another receiving antenna that receives signals sent from artificial satellites such as GPS, another absolute positioning receiver that decodes the received signals and determines the approximate absolute position of the other receiving antenna. Another phase information acquisition receiver that acquires the phase information of the carrier wave of the signal, and a receiving means such as an antenna or a light receiving element that receives the phase information sent from the slave station, and the slave phase information receiver are the same. Equipped with a relative position calculation device that measures the phase difference between the phase information obtained by the own station regarding the artificial satellite and the phase information sent from the slave station, and calculates the relative position between the own station and the slave station. In a surveying system in which multiple receivers each having a master station wirelessly exchange observation data of signals sent from artificial satellites such as GPS, the slave stations are connected to the master station. A storage device for storing absolute position data, an input means for inputting the absolute position data, and a master station as seen from the slave station using the absolute position of the master station stored in the storage device and the absolute position of the slave station. What is claimed is: 1. A surveying system comprising: another relative position calculation device for calculating a direction; and a display device for displaying the direction. (2) The surveying system according to claim 1, further comprising a drive device for directing a radiating means such as a transmitting antenna or a light emitting element in the direction of the master station in the slave station. (3) The surveying system according to claim 1 or 2, characterized in that the slave station includes an output control device that controls the output of the slave station phase information transmitter according to the distance to the master station. (4) A receiving antenna that receives signals sent from artificial satellites such as GPS, an absolute positioning receiver that decodes the received signals and determines the approximate absolute position of the receiving antenna, and a carrier wave of the received signal. a phase information acquisition receiver that acquires phase information; a slave station phase information transmitter that transmits the phase information to the master station as a wireless signal such as radio waves or light; and a wireless signal that is transmitted from the slave station phase shift information transmitter. In addition to having a slave station equipped with a radiating means such as an antenna and a light emitting element for radiating a signal,
Another receiving antenna that receives signals sent from artificial satellites such as GPS, another absolute positioning receiver that decodes the received signals and determines the approximate absolute position of the other receiving antenna. Another phase information acquisition receiver that acquires the phase information of the carrier wave of the signal, and a receiving means such as an antenna or a light receiving element that receives the phase information sent from the slave station, and the slave phase information receiver are the same. Equipped with a relative position calculation device that measures the phase difference between the phase information obtained by the own station regarding the artificial satellite and the phase information sent from the slave station, and calculates the relative position between the own station and the slave station. In a surveying system in which multiple receiving devices each having a master station exchange wirelessly observation data of signals sent from artificial satellites such as GPS, phase information is transmitted to the slave stations. In addition, a means for transmitting data on the approximate absolute position of the slave station is provided, and the master station has another means for calculating the direction of the slave station as seen from the master station from the received absolute position data of the slave station. A surveying system comprising a relative position calculation device and another display device that displays the direction thereof. (5) The surveying system according to claim 4, wherein the master station includes a drive device that directs receiving means such as a receiving antenna and a light receiving element toward the slave station. (6) A receiving antenna that receives signals sent from artificial satellites such as GPS, an absolute positioning receiver that decodes the received signals and determines the approximate absolute position of the receiving antenna, and a carrier wave of the received signal. a phase information acquisition receiver that acquires phase information; a slave station phase information transmitter that transmits the phase information to the master station as a wireless signal such as radio waves or light; and a wireless signal that is transmitted from the slave station phase shift information transmitter. In addition to having a slave station equipped with a radiating means such as an antenna and a light emitting element for radiating a signal,
Another receiving antenna that receives signals sent from artificial satellites such as GPS, another absolute positioning receiver that decodes the received signals and determines the approximate absolute position of the other receiving antenna. Another phase information acquisition receiver that acquires the phase information of the carrier wave of the signal, and a receiving means such as an antenna or a light receiving element that receives the phase information sent from the slave station, and the slave phase information receiver are the same. Equipped with a relative position calculation device that measures the phase difference between the phase information obtained by the own station regarding the artificial satellite and the phase information sent from the slave station, and calculates the relative position between the own station and the slave station. In a surveying system in which multiple receiving devices each having a master station exchange wirelessly observation data of signals sent from artificial satellites such as GPS, phase information is transmitted to the slave stations. In addition, a means for transmitting data on the approximate absolute position of the slave station is provided, and the master station calculates the approximate relative position of the slave station as seen from the master station from the received absolute position data of the slave station. and a comparison device that compares the calculation result of the relative position calculation device with the calculation result of the above-mentioned another relative position calculation device that calculates the relative position with respect to the slave station from the phase difference. A surveying system comprising: a retransmission request transmitter that transmits a wireless signal using another radiation means such as a transmitting antenna or a light emitting element to transmit a retransmission request signal that causes a slave station to resend phase information based on the result. (7) The surveying system according to claim 6, wherein the master station includes a drive device for directing another radiation means of the retransmission request transmitter toward the slave station. (8) The surveying system according to claim 7, wherein the master station includes another output control device that controls the transmission output of the retransmission request transmitter according to the distance to the slave station.