JP6782918B2 - Measurement method using prism cover system and prism cover system - Google Patents

Description

The present invention uses a prism cover system and a prism cover system used to track a reflection target of interest without error and perform measurement in a field where a plurality of reflection targets that reflect laser light emitted from a total station or the like are used. It relates to a measurement method.

A technology to acquire the position coordinates of a measurement target by emitting laser light from a total station or the like and measuring the distance and direction to the measurement target based on the reflected light from the measurement target at a construction site. It has been known. In the measurement using such a total station, a reflection target such as a prism is attached to the measurement object. Further, a total station is known to have a function of automatically tracking such a reflection target.

For example, in Patent Document 1 (Japanese Unexamined Patent Publication No. 2009-139277), when a surveying device loses sight of a target in a surveying system that tracks the target and the tracking is interrupted, the state can be quickly restored to the tracking capable state. Configuration is disclosed.
Japanese Unexamined Patent Publication No. 2009-139277

In the case where there are multiple measurement objects at the same site and reflection targets are attached to each measurement object, the total station tracks the reflection target different from the reflection target of interest. Therefore, there is a problem that the measurement is performed by aiming at this and erroneous measurement data is acquired.

The present invention solves the above problems, and the prism cover system according to the present invention is mounted so as to be fitted inside the outer peripheral portion of the reflecting prism, and opens an opening in the optical path of the incident light to the reflecting prism. A prism cover composed of a prism cover body portion having a prism cover and a lid portion for shielding or opening the opening is arranged on a plurality of reflecting prisms, communicates with each of the prism covers, and the lid of each prism cover. An information processing device for controlling the shielding or opening of the opening by the unit is provided , a total station for measuring the position data of the reflecting prism is provided, and the information processing device is provided on the prism cover of one of the plurality of prism covers. The lid was controlled so as to open the opening and shield the remaining opening of the prism cover, and a control command was issued to the total station to track and measure the reflecting prism, and the measurement was performed at the total station. The process of acquiring and storing the position data is executed for all the prism covers, and when the execution is completed for all the prism covers, the lid portion so as to shield the openings of all the prism covers. It is characterized by controlling .

Further, the measurement method using the prism cover system according to the present invention includes a prism cover body portion that is mounted so as to be fitted inside the outer peripheral portion of the reflecting prism and has an opening in the optical path of the incident light to the reflecting prism. A step of arranging a prism cover composed of a lid portion for shielding or opening the opening on a plurality of reflecting prisms and an information processing device are provided, and the information processing device communicates with each of the prism covers, respectively. A step of controlling the shielding or opening of the opening by the lid portion of the prism cover and a total station for measuring the position data of the reflecting prism are provided, and the information processing apparatus provides the prism cover of one of the plurality of prism covers. The lid is controlled so as to open the opening of the prism cover and shield the remaining opening of the prism cover, and a control command is issued to the total station to track and measure the reflection prism, and the total station measures. When the data acquisition step of acquiring and storing the obtained position data and the data acquisition step are executed for all the prism covers and the execution is completed for all the prism covers, all the prism covers It is characterized by having a step of controlling the lid portion so as to shield the opening .

In the prism cover system according to the present invention, the information processing device communicates with prism covers arranged on a plurality of reflecting prisms, and controls the shielding or opening of the opening by the lid portion of each prism cover. According to such a prism cover system according to the present invention, at a construction site or the like, the total station can surely find the reflection target of interest, aim at it, and perform measurement, and can detect an erroneous reflection target. It is possible to prevent mistakes in tracking and measurement.

It is a figure explaining the prism cover 300 used in the prism cover system 1 which concerns on embodiment of this invention. It is a figure which shows the reflection target 100 to which a prism cover 300 is attached. It is a figure explaining opening and closing of the opening 312 in a prism cover 300. It is a figure which shows an example of the structure of the prism cover system 1 which concerns on embodiment of this invention. It is a figure which shows the processing flowchart by the prism cover system 1 which concerns on embodiment of this invention. It is a figure which shows an example of the measurement data group acquired by the prism cover system 1 which concerns on embodiment of this invention.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a diagram illustrating a prism cover 300 used in the prism cover system 1 according to the embodiment of the present invention. The prism cover system 1 according to the present invention assumes a case where a plurality of measurement objects exist at the same site and reflection targets are attached to the respective measurement objects.

Further, as the reflection target 100, it is assumed that a reflection prism 120 having high laser reflection efficiency is used. The prism cover 300 is attached to each reflecting prism 120 to block or open the optical path of the incident light to the reflecting prism 120 or the optical path of the reflected light from the reflecting prism 120.

FIG. 1A shows a position where the prism cover 300 shields the optical path, and FIG. 1B shows a position where the prism cover 300 opens the optical path. Further, FIG. 1C is a block diagram of the prism cover 300.

The prism cover 300 has a prism cover body portion 310 into which the outer peripheral portion of the reflection prism 120 is fitted. The prism cover body portion 310 has an opening 312, and a lid portion 320 that shields or opens the opening 312 is provided. In the present embodiment, the opening 312 is shielded or opened by rotating the lid portion 320 in the P direction or the Q direction around the rotation axis X indicated by the alternate long and short dash line.

In the present embodiment, the lid portion 320 rotates about the rotation axis X to shield / open the opening 312 by the lid portion 320, but the lid portion 320 due to the hinge structure is used. The opening 312 may be shielded / opened by.

Further, in order to shield / open the optical path in the prism cover 300, a structure may be used in which a shutter film such as a shutter of a camera is used to shield / open the optical path, or an optical path is used using a blade like a diaphragm of a camera. It may be a structure that shields and opens the air.

In the prism cover 300, it is not preferable to use an optical component that controls light transmission, absorption, reflection, etc. by using a photochromic material or the like for shielding / opening an optical path in the opening 312, such as the lid portion 320. It is preferable to use a light-shielding bulk body. This is to ensure that the laser beam emitted from the total station 10 is shielded from light.

The lid body 320 is rotated by a lid drive unit 350 whose drive source is a motor, a rotary solenoid (both not shown), or the like, as shown in FIG. 1 (B). The lid body driving unit 350 drives the lid body unit 320 based on a command from the main control unit 330.

The main control unit 330 can be configured by a general-purpose microcomputer including a central arithmetic processing unit and a storage unit. In addition, the wireless communication unit 340 wirelessly performs data communication with an external personal computer 50 or the like. The control command transmitted from the personal computer 50 is received by the wireless communication unit 340, and the control command can be transferred to the lid drive unit 350 by the main control unit 330. Thereby, the personal computer 50 can control the opening / shielding by the lid portion 320 of the opening 312.

Further, in the prism cover 300, a storage unit 345 for storing the number of individual identifications is provided corresponding to the wireless communication unit 340. The storage unit 345 stores a unique number of individual identifications assigned to each prism cover 300. The wireless communication unit 340 sends and receives only communication data corresponding to the number of individual identifications stored in the storage unit 345.

The prism cover system 1 according to the present invention uses a plurality of prism covers 300 in a form corresponding to a plurality of reflection prisms 120, but by using the prism covers 300 to which different individual identification numbers are assigned, the personal computer 50 Is capable of issuing a control command to a specific prism cover 300 among the plurality of prism covers 300.

In the block diagram of FIG. 1C, the secondary battery 380 supplies power to each configuration. As the secondary battery 380, for example, a lithium ion secondary battery or the like can be used. If a solar cell is provided in addition to the secondary battery 380, maintenance work can be reduced.

Next, the reflection target 100 to which the prism cover 300 as described above is attached will be described. FIG. 2 is a diagram showing a reflection target 100 to which the prism cover 300 is mounted.

The reflection target 100 according to the present invention is used by attaching the reflection prism 120 to the measurement target position. The reflection prism 120 has a prism accommodating body portion 121 capable of accommodating the prism inside, and a screw portion 123 (screw portion is not shown) which is a male screw. The reflection prism 120 is attached to the mounting screw hole portion 256 by using the screw portion 123.

For example, the laser beam emitted by the total station 10 is incident on the reflection prism 120 mounted on the reflection target 100. The light incident on the opening 122 of the reflecting prism 120 is made into reflected light parallel to the incident light by the prism housed in the reflecting prism 120, and is emitted from the reflecting prism 120.

Hereinafter, in the present embodiment, the case where the reflection target 100 is used as the aim of the total station 10 will be described as an example, but the reflection target 100 may also be used as a target for other devices such as a laser range finder. Can be done. In the prism cover system 1 according to the present invention, the one that tracks the reflection target 100 is not limited to the total station 10.

A material such as steel is used for the main main body of the reflection target 100 such as the base 130. Of the two main surfaces of the base 130, the first surface 131 is used as the surface on which the reflection prism 120 is mounted. An upright paddle portion 135 is provided vertically from the first surface 131. Further, the second surface 132 of the two main surfaces of the base 130 is used as a fixing surface when the reflection target 100 is attached to a building member such as a steel frame and used, for example.

A ball holding portion 210 is provided at the tip of the vertical paddle portion 135. The rotatable ball 220 is housed in the ball holding portion 210 so as not to be removable. Further, in the present embodiment, the movement of the ball 220 can be regulated as necessary by a fixture (not shown) such as a stopper (not shown). Further, an appropriate friction is set between the ball 220 and the ball holding portion 210 so that the ball 220 does not easily rotate with a force of a predetermined value or less.

A mounting support column 250 provided with mounting screw holes 256 extends from the ball 220. The mounting screw holes 256 allow the reflective prism 120 to be mounted. With the above configuration, in the reflection target 100, the opening 122 of the reflection prism 120 can be directed in a predetermined direction based on the rotation of the ball 220.

In the reflection target 100 as described above, the prism cover 300 is externally fitted to the prism housing body 121 of the reflection prism 120 as shown in FIG. FIG. 3 is a diagram illustrating opening and closing of the opening 312 in the prism cover 300.

FIG. 3A shows a state in which the opening 312 of the prism cover body 310 is shielded by the lid 320 and the opening 122 of the reflection prism 120 is covered. Further, FIG. 3B shows a state in which the opening 312 of the prism cover body 310 is opened and the opening 122 of the reflection prism 120 is exposed.

Whether to expose or cover the opening 122 of the reflection prism 120 is executed by the main control unit 330 and the lid drive unit 350 of the prism cover 300 based on the control command transmitted from the personal computer 50. To do.

Next, an example will be described in which the prism cover system 1 according to the present invention measures the position coordinates of a plurality of measurement objects at predetermined time intervals using a plurality of reflection targets 100 to which the prism cover 300 is attached. FIG. 4 is a diagram showing an example of the configuration of the prism cover system 1 according to the embodiment of the present invention.

The system for carrying out the measurement shown in FIG. 4 is an example in which the position coordinates of the three measurement objects of the measurement object 1, the measurement object 2, and the measurement object 3 are measured by one total station 10. In the prism cover system 1 according to the present invention, the number of measurement objects to be measured and the number of total stations 10 used for measurement are arbitrary.

A reflection target 100 having a prism cover 300 to which n = 1 is assigned as an individual identification number is assigned to the measurement object 1, and a prism cover 300 to which n = 2 is assigned as an individual identification number is assigned to the measurement object 2. A reflection target 100 having a reflection target 100 is attached, and a reflection target 100 having a prism cover 300 to which n = 3 is assigned as an individual identification number is attached to the measurement object 3.

Further, each prism cover 300 is capable of wireless communication with the personal computer 50. As a result, the personal computer 50 can control the shielding / opening of the opening 312 in each prism cover 300.

As the personal computer 50 used in the prism cover system 1 according to the present invention, a currently general-purpose computer having a data processing function, a display function, a communication function, and the like can be appropriately used. As long as it has these functions, another information processing device such as a tablet terminal or a smartphone can be used instead of the personal computer 50.

The total station 10 measures the orientation (horizontal angle, vertical angle) of the intelligent target 100 by emitting laser light toward the reflection prism 120 provided on the reflection target 100 and receiving the reflected light from the reflection prism 120. At the same time, the distance between the reflection prism 120 and the reflection prism 120 is also measured. By installing the total station 10 at known coordinates, the position coordinates of the reflection prism 120 are calculated from the known coordinates, the measured orientation (horizontal angle, vertical right angle) data, and the distance data.

Further, in the prism cover system 1 according to the present invention, a total station 10 having a function of automatically tracking a target is used. The total station 10 is also capable of wireless communication with the personal computer 50. The total station 10 is capable of executing operations such as tracking and measurement based on a control command received from the personal computer 50, and transmitting the measured data and the like to the personal computer 50.

In the example shown in FIG. 4, the reflection prism 120 in the measurement object 1 to which the reflection target 100 having the prism cover 300 to which n = 1 is assigned is tracked by the total station 10 and measured. There is. At this time, only the lid portion 320 of the prism cover 300 to which n = 1 is assigned opens the opening 312, and the opening 122 of the reflecting prism 120 is exposed. On the other hand, the lid portion 320 of the other prism cover 300 closes the opening 312, and the optical path of the reflecting prism 120 is shielded.

In the present embodiment, the prism cover 300 and the personal computer 50 perform data communication wirelessly, and the total station 10 and the personal computer 50 also perform data communication wirelessly. The prism according to the present invention will be described. In the cover system 1, the data communication as described above does not necessarily have to be wireless, and wired data communication can also be used.

Next, an algorithm for measuring the position coordinates of a plurality of measurement objects at predetermined time intervals under the above measurement system will be described. FIG. 5 is a diagram showing a processing flowchart by the prism cover system 1 according to the embodiment of the present invention. Such a flowchart is executed by the personal computer 50. Further, such a flowchart is an example for operating the prism cover system 1 according to the present invention, and the prism cover system 1 according to the present invention can also perform other operations.

In FIG. 5, when the processing of the personal computer 50 is started in step S100, the variable n is subsequently set to n = 1 in step S101. This variable n corresponds to the number of individual identifications of the prism cover 300. Also, n is a natural number.

Subsequently, in step S102, a command is issued to the prism cover 300 whose individual identification number corresponds to n to drive the lid portion 320 and open the opening 312 of the prism cover body portion 310. On the other hand, for the other prism covers, a command is issued to drive the lid portion 320 and shield the opening 312 of the prism cover body portion 310. As a result, only the reflection target 100 to which the prism cover 300 having the number of individual identifications corresponding to n is attached can be measured.

In step S103, the total station 10 is instructed to track the reflection prism 120 of the reflection target 100 and perform measurement. As described above, since the total station 10 can track and measure only one reflection target 100, there is no possibility that the total station 10 mistakenly tracks and measures a reflection target that is not of interest. ..

In step S104, a command is issued to the total station 10 to transmit the data measured in step S103.

In step S105, the measurement data transmitted from the total station 10 is received and recorded as the measurement data of the reflection prism (reflection target 100) corresponding to the prism cover 300 (n) in a storage means of a personal computer 50 (not shown).

In step S106, it is determined whether or not n = N. N is the largest of the variables n, and in the example of the measurement system of FIG. 4, N = 3. When the result of the determination in step S106 is NO, it means that the measurement has not been completed for all the reflection targets 100, so the process proceeds to step S109, n is incremented by 1, and the process returns to step S102.

On the other hand, when the result of the determination in step S106 is YES, it means that the measurement of the final reflection target 100 is completed. Therefore, the process proceeds to step S107, and the lid portion 320 is attached to all the prism covers 300. It drives and issues a command to shield the opening 312 of the prism cover body 310.

By the way, in the prism cover system 1 according to the present invention, as shown by the algorithm as described above, the time during which the opening 122 of the reflection prism 120 is exposed is only when measured by the total station 10, which is relatively large. In a short time, the reflective prism 120 is otherwise protected by the lid 320. Since the reflective prism 120 is an optical component and is vulnerable to dust and water, the prism cover 300 can be effectively used as a protective cover against dust and water. In particular, the object to be measured to which the reflective target 100 is attached is outdoors. In this case, the protection of the reflecting prism 120 by the prism cover 300 becomes more effective.

By the way, returning to the flowchart, in step S108, it is determined whether or not there is a command to end the measurement from a higher rank such as a user. When the determination result in step S108 is NO, the process proceeds to step S110 to enter a routine for determining whether or not a predetermined time has elapsed. If the determination in step S110 is YES, the process proceeds to step S101 and a series of measurement data acquisition is restarted.

On the other hand, when the determination result in step S108 is YES, the process proceeds to step S111 and the processing of the personal computer 50 is terminated.

The measurement data acquired by the above algorithm will be described. FIG. 6 is a diagram showing an example of a measurement data group acquired by the prism cover system 1 according to the embodiment of the present invention.

In the measurement data group shown in FIG. 6, the position coordinate data of the reflection prisms 1 to 3 (both having a reference code number of 120) attached to the measurement objects 1 to 3 are recorded in a time series at predetermined time intervals. ing. As a result, it is possible to grasp the displacement of the objects to be measured 1 to 3 every hour at a construction site or the like.

As described above, in the prism cover system 1 according to the present invention, the personal computer 50 (information processing device) communicates with the prism covers 300 arranged on the plurality of reflective prisms, and the lids of the respective prism covers 300. Since the section 320 controls the shielding or opening of the opening, according to the prism cover system 1 according to the present invention, the total station 10 reliably finds the reflection target 100 of interest at a construction site or the like, and obtains the same. It is possible to perform measurement by aiming at, and it is possible to prevent mistakes in tracking and measuring an erroneous reflection target.

1 ... Prism cover system 10 ... Total station 50 ... Personal computer (information processing device)
100 ... Reflective target 120 ... Reflective prism 121 ... Prism accommodating body 122 ... Opening 123 ... Threaded 130 ... Base 131 ... First surface 132 ... First surface 132 ... Two sides 135 ・ ・ ・ Standing rod 210 ・ ・ ・ Ball holding 220 ・ ・ ・ Ball 250 ・ ・ ・ Mounting support (prism mounting)
256 ... Mounting screw hole 300 ... Prism cover 310 ... Prism cover Body 312 ... Opening 320 ... Lid 330 ... Main control unit 340 ... Wireless communication unit 345.・ ・ Storage unit 350 ・ ・ ・ Lid drive unit 380 ・ ・ ・ Secondary battery

Claims (2)

A prism cover that is mounted so as to fit inside the outer peripheral portion of the reflecting prism and has an opening in the optical path of the incident light to the reflecting prism, and a lid portion that shields or opens the opening. Are arranged on multiple reflecting prisms,
An information processing device that communicates with each of the prism covers and controls the shielding or opening of the opening by the lid of each prism cover is provided .
A total station is provided to measure the position data of the reflecting prism.
The information processing device controls the lid portion so as to open the opening of one of the plurality of prism covers of the prism cover and shield the remaining openings of the prism cover.
A control command is issued to the total station to track and measure the reflection prism, and a step of acquiring and storing the position data measured by the total station is executed for all the prism covers, and all the above-mentioned A prism cover system comprising controlling a lid portion so as to shield all openings of the prism cover when execution is completed for the prism cover. A prism cover that is mounted so as to fit inside the outer peripheral portion of the reflecting prism and has an opening in the optical path of the incident light to the reflecting prism, and a lid portion that shields or opens the opening. Steps to arrange on multiple reflecting prisms,
A step of providing an information processing device, communicating with each of the prism covers by the information processing device, and controlling the shielding or opening of the opening by the lid portion of each of the prism covers.
A total station for measuring the position data of the reflecting prism is provided, and the information processing apparatus opens the opening of one of the plurality of prism covers of the prism cover and shields the remaining openings of the prism cover. A data acquisition step of controlling the unit, issuing a control command to the total station to track and measure the reflection prism, acquiring and storing the position data measured by the total station, and
The data acquisition step is executed for all the prism covers, and when the execution is completed for all the prism covers, the step of controlling the lid portion so as to shield the openings of all the prism covers. A measurement method using a prism cover system , which comprises .

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