Surveying method, surveying program, and surveying system

Abstract

To enable automatic transmission of a measurement instruction to a surveying instrument device simply by holding a target holding body in a near-vertical posture without a surveyor being conscious.SOLUTION: A surveying method includes: a measurement standby step in which a surveyor W operates a measurement instruction device to put measurement in a standby state by using a surveying instrument device 100 that tracks and measures the position of a target 210, a target holding body 200 that holds a target 210, a level gauge 400 that measures the tilt of the orientation of the target holding body 200, and the measurement instruction device 300; a tilt detection step in which the level gauge 400 transmits the detected tilt to the measurement instruction device 300; a measurement instruction step in which the measurement instruction unit 321 transmits a measurement instruction to the surveying instrument device 100 when such a state the received tilt has been maintained for a prescribed time or longer within a prescribed range is detected; and a measurement step which measures the position of the target 210 on the basis of the measurement instruction received by the surveying instrument device 100.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present disclosure relates to a surveying method, a surveying program, and a surveying system. [Background technology]

[0002] Traditionally, total stations (TS) have been used in surveying sites as high-precision electronic surveying devices that combine the functions of a theodolite and an electronic distance meter (EDM) and can measure angle and distance simultaneously. The TS also has the function of automatically tracking a pinpole equipped with a retroreflective prism that serves as a target for the measurement position, and measuring its position. In recent years, when measuring the position of a measurement target using these prisms and TS, a technique has been used in which measurement instructions are transmitted using a surveyor's tablet terminal or the like at the site (see Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2023-73151 A Summary of the Invention [Problem to be solved by the invention]

[0004] By the way, in order to measure the position of a measurement target using a prism and a TS, it is necessary to know the vertical distance that the prism is separated from the ground. The pin pole that holds the prism has a pin at its tip, and the pin pole is usually set up vertically with the pin facing down to ensure the verticality of the pin pole, and the position is measured in a state where it can be assumed that the prism is at a specified height above the ground.

[0005] However, the verticality of the pinpole must be guaranteed by the surveyor who holds it in his / her hand. While holding the pinpole in one hand, the surveyor must also operate a tablet terminal or the like that sends instructions to the surveying equipment such as TS with the other hand. Therefore, in the past, the surveyor had to gaze at the level attached to the pinpole, check the verticality, and issue measurement instructions to the surveying equipment. More specifically, it was necessary to gaze at the level attached to the pinpole to check the verticality, and press the measurement instruction button displayed on the screen of a tablet terminal or the like held as a separate device at the moment when it was vertical, while checking the timing.

[0006] In that case, after visually checking the level, it is necessary to move one's gaze to the screen of a tablet device or the like and then press a button, and there is a risk that the verticality may not be maintained between the time one looks away from the level and the time the button is pressed. In that case, if the measurement command is sent at a time when the pinpole is not vertical, the position of the prism will not be measured accurately. In other words, such measurement commands are the work of an experienced surveyor and are difficult for beginners. Furthermore, even for an experienced person, it is a task that requires concentration and time.

[0007] Therefore, the object of the present disclosure is to reduce the burden on the surveyor in surveying using a surveying instrument capable of automatically tracking and measuring the position of a target using a light beam, and a linear target holder that holds the target and has a known length from its tip to the target, by processing measurements automatically without the surveyor having to think about it much, simply by holding the target holder in a nearly vertical position. [Means for solving the problem]

[0008] In order to achieve the above-mentioned object, the surveying method disclosed herein is a surveying method in which a surveyor measures the position of a target using a surveying instrument capable of automatically tracking and measuring the position of a target using a light beam, a linear target holder that holds the target and has a known length from its tip to the target, a level that is held integrally with the target holder and is capable of measuring the tilt of the orientation of the target holder with the tip of the target holder in contact with the object to be measured, and a measurement instruction device having a measurement instruction unit that sends an instruction to the surveying instrument to measure the position of the target when the level detects a predetermined tilt, the surveying method including the steps of: a target setting step in which the surveyor brings the tip of the target holder into contact with the object to be measured; a measurement waiting step in which the surveyor operates the measurement instruction device to wait for measurement; a tilt detection step in which the level sends the detected tilt to the measurement instruction device; a measurement instruction step in which the measurement instruction unit sends a measurement instruction to the surveying instrument when it detects that the received tilt has been maintained within a predetermined range for more than a predetermined time; and a measurement step in which the position of the target is measured based on the measurement instruction received by the surveying instrument.

[0009] In addition, the surveying program disclosed herein is a program stored and executed in a measurement instruction device in a surveying carried out using a surveying instrument capable of automatically tracking and measuring the position of a target using a light beam, a linear target holder that holds the target and has a known length from its tip to the target, a level that is held integrally with the target holder and is capable of measuring the inclination of the target holder with the tip of the target holder in contact with the object to be measured, and a measurement instruction device having a measurement instruction unit that sends an instruction to the surveying instrument to measure the position of the target when the level detects a predetermined inclination, and is intended to execute a measurement standby step that causes the instrument to wait for measurement in response to operation by the surveyor, and a measurement instruction step that sends a measurement instruction to the surveying instrument when the measurement instruction unit detects that the inclination received from the level has been maintained within a predetermined range for more than a predetermined time.

[0010] The surveying system disclosed herein also comprises a surveying instrument capable of automatically tracking and measuring the position of a target using a light beam; a linear target holder which holds the target and has a known length from its tip to the target; a level which is held integrally with the target holder and is capable of measuring the inclination of the orientation of the target holder with the tip of the target holder in contact with the object to be measured; and a measurement instruction device having a measurement instruction unit which sends an instruction to the surveying instrument to measure the position of the target when the level detects a predetermined inclination, and the measurement instruction device has a measurement instruction unit which puts the measurement on hold when operated by the surveyor, and sends a measurement instruction to the surveying instrument when it detects that the inclination received from the level has been maintained within a predetermined range for more than a predetermined time. Effect of the Invention

[0011] According to the present disclosure, the burden on the surveyor can be reduced by automatically processing measurements by simply holding the target holder in a nearly vertical position without the surveyor having to think about it too much. [Brief description of the drawings]

[0012] [Figure 1] FIG. 1 is an overview showing the configurations and surveying conditions used in the surveying method of the present disclosure. [Diagram 2] Diagram explaining the spirit level [Diagram 3] Sequence diagram showing the survey method [Figure 4] FIG. 13 is a diagram showing an example of a sensor section displayed on a screen. [Diagram 5] Sequence diagram showing the survey method [Figure 6] Sequence diagram showing the survey method DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0013] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present disclosure will be described with reference to the drawings.

[0014] 1 is an overview diagram showing each component and a surveying situation used when implementing a surveying method using the surveying system of the present disclosure, and is also a block diagram showing the components of the surveying instrument 100 and the measurement instruction device 300. In this diagram, a surveyor W sets up the surveying instrument 100 in an appropriate location, moves around the work site holding a linear target holder 200 holding a target 210 and the measurement instruction device 300, brings the tip 221 of the target holder 200 into contact with the measurement object T whose position he wishes to measure, and causes the position of the target 210 to be measured by the surveying instrument 100.

[0015] The surveying instrument 100 is, for example, a total station (TS). The surveying instrument 100 may be a surveying instrument using a light wave method such as a TS including a total station. The light wave method such as a TS includes, in addition to a TS, a measuring instrument using a light wave method that can perform measurements equivalent to a TS with an automatic tracking function and does not have a telescope.

[0016] The surveying instrument 100 has a function for measuring the position of the target 210. This function is realized by the surveying unit 110. The surveying unit 110 further has a distance measuring unit 111 and an angle measuring unit 112. The distance measuring unit 111 is a unit that measures the oblique distance to the surveyed device. This role is performed by an optical range finder. The angle measuring unit 112 is a unit that detects the horizontal angle and vertical angle, and the TS can measure the vertical angle and horizontal angle in the aiming direction.

[0017] The surveying instrument 100 has a function of automatically tracking the position of the target 210. This function is realized by the tracking control unit 150. The tracking control unit 150 controls the rotation drive amount of the horizontal rotation drive unit 260 and the vertical rotation drive unit 270, so that the TS can automatically track the target 210.

[0018] The surveying instrument 100 has a function of receiving a measurement instruction transmitted from the measurement instruction device 300, and measuring the position of the target 210 by the surveying unit 110 based on the measurement instruction. Such a function is realized by the surveying communication unit 130 and the surveying unit 110.

[0019] The target holder 200 comprises a target 210, a rod-shaped portion 220, and a tip 221. The target holder 200 is, for example, a pin pole or a prism pole. The rod-shaped portion 220 is a pole and has a linear shape.

[0020] The target 210 is, for example, a light reflecting device, more specifically, a retroreflecting prism. This retroreflecting prism has a function of reflecting light such as infrared light emitted from the TS and returning it to the TS.

[0021] The rod-shaped portion 220 is a straight rod-shaped body. A target 210 and a level 400 (described later) are attached to a part of the rod-shaped portion 220.

[0022] The tip 221 is a pin and can basically come into contact with a measurement target T such as the ground or the top surface of a stake at one point.

[0023] A level 400 is held integrally on the target holder 200. The level 400 may be provided with a tilt display unit 410 that displays the tilt of the target holder 200 in real time. In addition, a bubble level or other such device may be held separately from the level 400 so that the surveyor W can visually check the tilt of the target holder 200.

[0024] The level 400 has the function of detecting the inclination of the orientation of the target holder 200 when the tip 221 of the target holder 200 is in contact with the object T to be measured.

[0025] The level 400 is, for example, a digital level. The meaning of the level 400 is not limited to a device that measures horizontality and may be interpreted as broadly as possible, and may include a sensor that detects tilts and angles with respect to multiple axes arranged along multiple directions, such as a vertical axis, a horizontal axis, and an inclined axis. The level 400 may be, for example, a two-axis inclination sensor.

[0026] 2 shows the configuration of the level 400. The level 400 may include a tilt display unit 410, a tilt detection unit 430, and a tilt information communication unit 440.

[0027] The tilt display unit 410 has a function of displaying to the user the angle and tilt detected by the tilt detection unit 430, and can display the angle as a numerical value using, for example, a liquid crystal display.

[0028] The tilt detection unit 430 has a function of detecting the angle of the situation in which the level 400 is placed, and specific devices that can be realized include a tilt sensor, an angle sensor, an acceleration sensor, a magnetic sensor, or a combination of these.

[0029] A more specific example of an angle sensor is a device that can output tilt as an electrical signal, such as a MEMS tilt sensor. For example, these devices have a certain mass inside, and as this mass functions as a mover and changes position relative to the stator, the electrical capacitance between the mover and stator changes, and this change in capacitance can be extracted as a voltage signal. The changed voltage signal can be compared with a reference voltage signal to calculate the tilt through a specified calculation.

[0030] By calculating the inclination about two axes perpendicular to each other, the inclination detection unit 430 can calculate the levelness of the level 400 in the orientation in which it is placed.

[0031] In order to improve the accuracy of detecting the inclination and angle, the angular velocity sensor may be combined with an acceleration sensor or a magnetic sensor, and the angle may be calculated using the information output from these sensors.

[0032] The tilt information communication unit 440 has a function of transmitting the tilt information and angle information detected by the tilt detection unit 430 to the measurement instruction device 300. The tilt information communication unit 440 has a function of performing electrical information communication using a wireless communication standard, similar to the survey communication unit 130 of the surveying instrument 100 and the terminal communication unit 330 of the measurement instruction device 300.

[0033] The level 400 is attached to the rod-shaped portion 220 so as to be in a positional relationship that detects the horizontality of a plane perpendicular to the direction of the straight line of the rod-shaped portion 220. In other words, when the level 400 detects the horizontal, the verticality of the rod-shaped portion 220 can automatically be detected.

[0034] The term "vertical" here also refers to parallelism to the normal to the ground when the ground is considered to be flat. In other words, it refers to the direction of the earth's gravitational force, that is, the direction in which gravity acts, and can be called verticality because it refers to the opposite direction to the earth's gravity. In other words, in this disclosure, vertical and plumb are interchangeable terms.

[0035] In light of the above explanation, it will be understood that horizontal detection by the level 400 and vertical detection of the rod-shaped portion 220 may be considered to be synonymous.

[0036] Returning to Fig. 1 for further explanation, the measurement and instruction device 300 is a portable terminal that can be easily carried by the surveyor W at the surveying site. More specifically, the measurement and instruction device 300 can be, for example, a smartphone, a feature phone, a tablet, a handheld computer device, a wearable device (such as a glasses-type device or a watch-type device), etc. The measurement and instruction device 300 can be configured by installing application software on these general-purpose devices.

[0037] The measurement instruction device 300 is equipped with a terminal communication unit 330 that can perform wireless or wired electrical communication with at least the surveying instrument 100 and / or the level 400, and a measurement instruction unit 321 for issuing measurement instructions to the surveying instrument 100 via the terminal communication unit 330.

[0038] The measurement instruction unit 321 is operated by the surveyor W to wait for measurement, and when it detects verticality in the measurement standby state, it is capable of transmitting a measurement signal to the surveying instrument 100. This will be described later. In addition, the terminal may have a terminal control unit 310, a terminal storage unit 320, an input unit 340, a screen unit 350, and an audio unit 360.

[0039] The terminal control unit 310 executes the functions and / or methods realized by the code or instructions included in the program stored in the terminal storage unit 320. The measurement instruction device 300 includes a computer for executing the program. The terminal control unit 310 may include, for example, a central processing unit (CPU), an MPU, a GPU, a microprocessor, a processor core, a multiprocessor, an ASIC, an FPGA, etc., and may realize each process disclosed in each embodiment by a logic circuit or a dedicated circuit formed in an integrated circuit, etc. In addition, these circuits may be realized by one or more integrated circuits, and multiple processes shown in each embodiment may be realized by one integrated circuit. In addition, the terminal control unit 310 may include a main memory unit that temporarily stores the program read from the terminal storage unit 320 and provides a working area.

[0040] The input unit 340 can receive input from the surveyor W, who is the user, and transmit the input information to the terminal control unit 310. For example, the input unit 340 can include hardware input means such as a button, software input means displayed on the screen unit 350 such as a touch panel, a remote controller, or audio input means such as a microphone.

[0041] The screen unit 350 can be realized by any configuration capable of displaying an image (screen). For example, the screen unit 350 can be a flat display such as a liquid crystal or OLED, a curved display, a folding screen provided on a foldable terminal, a head-mounted display, or a device capable of displaying an image by projection onto a substance using a small projector, or by forming an image using XR technology (a concept including AR, VR, and MR).

[0042] The screen unit 350 may be equipped with a sensor unit 351 that detects contact of a human finger with a touch panel or the like. The sensor unit 351 can sense whether the surveyor W's finger is in contact with or separated from the touch panel. Specifically, a capacitive touch panel can be used. Furthermore, detecting a human finger is not limited to direct contact with the skin, but also includes detection of contact of a finger through gloves capable of operating a touch panel or the like.

[0043] The audio unit 360 has a function of generating sound, and is, for example, a speaker. The audio unit 360 can output a measurement abnormality notification sound, which will be described later, to the surveyor W.

[0044] The terminal storage unit 320 has a function of storing various programs and various data required. In addition, the terminal storage unit 320 can store surveying information received by the terminal communication unit 330 and position information calculated based on the surveying information. The terminal storage unit 320 can also store information (elevation, etc.) of land used at a construction site, etc., and design information such as a planned surveying location to be surveyed. The terminal storage unit 320 can be configured with various storage media such as an HDD, SSD, flash memory, etc.

[0045] The position of the level 400 is susceptible to sensitive changes depending on the position of the rod-shaped portion 220, and to keep it vertical requires surveyor W to control the position of his or her arms and hands and receive visual feedback accordingly.

[0046] For example, if surveyor W holds rod-shaped portion 220 vertically in his left hand while holding measurement instruction device 300 in his right hand, after visually checking tilt display unit 410 to confirm verticality, he will not be able to monitor the verticality while shifting his gaze to screen unit 350, which could result in the verticality being lost, resulting in difficulties in measurement.

[0047] As a result of various verifications conducted by the inventors, it was found that if the measurement could be processed automatically without requiring operations such as operating a terminal when issuing a measurement instruction, it would be possible to measure the target 210 quickly and stably.

[0048] In other words, if a measurement signal can be sent immediately after the verticality of the rod-shaped portion 220 is detected, there is a low possibility that the verticality will be lost while the surveyor W is performing another operation, such as pressing the button MC.

[0049] Therefore, the level 400 has a function of automatically transmitting a verticality detection signal to the measurement and instruction device 300 when it detects that the target holder 200 has been maintained within a predetermined range of inclination for a predetermined period of time. Then, the measurement and instruction device 300 has a function of transmitting a measurement signal to the surveying instrument 100 for measuring the position of the target 210 based on this verticality detection signal.

[0050] However, if a measurement signal is transmitted every time the level 400 detects verticality, a large amount of unnecessary measurement data will be accumulated, and there is a risk that necessary measurement data will not be obtained.

[0051] Therefore, the measurement instruction section 321 of the measurement instruction device 300 is equipped with a measurement standby mode, and has the function of transmitting a measurement signal to the surveying instrument 100 when a verticality detection signal is received from the level 400 only when a measurement standby instruction is received from the surveyor W.

[0052] With this type of measurement instruction unit 321, the surveyor W simply needs to hold the rod-shaped portion 220 in a position close to vertical without being too conscious of it, and the measurement process will be carried out at the appropriate time when it becomes vertical, and the measurement signal will be sent automatically, so there is no need for the surveyor W to perform any annoying operations, and the burden on the surveyor can be reduced.

[0053] The surveyor W can measure the position of the target 210 only when the measurement standby mode is specified, and can control the measurement opportunity himself.

[0054] The sensor unit 351 can sense contact with the fingers of the surveyor W. Such a sensor unit 351 can be realized by a capacitance touch panel as described above, or the like. For example, the measurement instruction unit 321 determines that measurement standby is in progress when the surveyor W first touches the sensor unit 351 and presses a measurement standby button or the like. Various designs are possible for determining that measurement standby is in progress, such as determining that the sensor unit 351 has been pressed and held for a predetermined period of time or longer (for example, two seconds or longer).

[0055] The above is the configuration of the surveying instrument 100, target holder 200, measurement indicator 300, and level 400 used for surveying in this disclosure.

[0056] 3 is a sequence diagram showing a surveying method using the surveying device 100, the target holder 200, the measurement and instruction device 300, and the level 40. The following sequence will be described as a first embodiment of a flow of, for example, driving piles on site.

[0057] <First embodiment> 3, first, in step S101, the surveying instrument 100 is installed at a predetermined position on-site. This sets the instrument point. The surveying instrument 100 can calculate its own position by measuring two known points from the installed position.

[0058] Next, in step S201, the surveyor W brings the target holder 200 into contact with the measurement target T (target installation step). When installing the target holder 200, the surveyor W can read design information of the planned location to be surveyed, such as a stakeout point, which is stored in advance in the terminal storage unit 320 of the measurement instruction device 300. Based on the read design information of the stakeout point, the measurement instruction device 300 may guide the surveyor W to the stakeout point via the screen unit 350.

[0059] Next, in step S301, the surveyor W operates the measurement instruction device 300 to put it on standby for measurement (measurement standby step). If verticality is detected while this measurement standby state continues, the measurement instruction unit 321 transmits a measurement instruction.

[0060] 4 is a diagram showing an example of the sensor section 351 displayed on the screen section 350 of the measurement instruction device 300. When a touch panel display is used, the entire screen section 350 can be used as the sensor section 351. The button MC for putting the device into measurement standby mode may be provided on the entire screen, or on a part of the screen. To make the surveyor W aware that the device is in a measurement standby state, a display such as changing the color of a part of the screen (measurement standby state display) may be performed. This allows the surveyor W to recognize that the device is currently in a measurement standby state, and the attitude of the rod section 220 can be maintained accordingly, and measurement instructions can be prepared.

[0061] Next, in step S202, the level 400 detects the inclination of the rod-shaped part 220 when the surveyor W is holding it vertically, and transmits the detected inclination to the measurement instruction device 300 (inclination detection step).

[0062] Next, in step S302, the measurement instruction unit 321 judges whether the received tilt has been maintained within a predetermined range for a predetermined period of time or more. Then, for example, when the tilt in two different directions that are perpendicular to the vertical direction and perpendicular to each other are within a predetermined angle, and this is maintained for a predetermined number of seconds, it is determined that the object is horizontal, and a measurement instruction is sent to the surveying instrument 100 (measurement instruction step).

[0063] For example, in this example, when the first detected tilt 1 is within a predetermined tilt range and the next detected tilt 2 is also within the predetermined range, it is determined that the predetermined tilt has been maintained for a predetermined time, and the measurement instruction unit 321 transmits a measurement instruction. The timing for detecting and outputting the tilt can be set in the level 400 using a predetermined sampling interval or the like.

[0064] When the measurement instruction is transmitted, the fact that the measurement instruction has been issued may be displayed on the screen unit 350 or the like.

[0065] Next, in step S102, the surveying instrument 100 measures the position of the target 210 based on the measurement instruction received by the measurement instruction unit 321 (measurement step). This process is also called radiation observation in existing surveying methods.

[0066] The position information thus measured may be transmitted to the measurement instruction device 300 in step S103 and stored in the surveying instrument 100 or the measurement instruction device 300.

[0067] According to the surveying method disclosed herein, the burden on the surveyor can be reduced by having the surveyor W simply hold the target holder in a nearly vertical position and the measurements can be processed automatically without him or her having to think about it too much.

[0068] To carry out such a surveying method according to the present disclosure, some of the steps can be executed by a computer program stored and executed in the measurement instruction device 300. Specifically, a measurement standby step in which measurement is put on standby in response to an operation by the surveyor W, and a measurement instruction step in which the measurement instruction unit 321 transmits a measurement instruction to the surveying instrument 100 when it detects that the inclination received from the level 400 has been maintained within a predetermined range for a predetermined period of time or more can be executed.

[0069] This reduces the burden on the surveyor by allowing the surveyor to automatically process measurements by simply holding the target holder in a nearly vertical position without having to think about it too much.

[0070] Next, a second embodiment will be described with reference to Fig. 3. The second embodiment relates to a continuous surveying mode in which measurements are made at a plurality of locations continuously. <Second embodiment> In step S103, the measurement instruction device 300 that has received the measurement position displays a measurement completion notification on the screen unit 350, or the audio unit 360 outputs a measurement completion notification sound (measurement completion notification step). This allows the surveyor W to recognize that the position measurement has been completed.

[0071] Furthermore, there may be a continuous surveying mode in which the process returns to step S201 and the steps from step S201 to step S303 are repeated as a measurement loop.

[0072] In step S304, the continuous surveying mode is ended by completing a certain number of measurements or completing the surveying of the planned measurement points.

[0073] By doing this, when position measurements are required at multiple locations, surveyor W can recognize when each measurement is completed by a measurement completion notification, and can quickly perform work in succession without worrying that the measurements may not have been performed correctly.

[0074] Next, a third embodiment will be described with reference to Fig. 5. The third embodiment is an embodiment related to a function for determining measurement accuracy. The following describes the third embodiment, focusing on differences from the first and second embodiments.

[0075] <Third embodiment> 5, in step S313, the measurement accuracy determination unit 322 reads out the position of the target 210 measured in step S102 and the planned survey position for this point from the terminal storage unit 320, and calculates the difference. Then, it is determined whether the difference is greater than a predetermined threshold value (measurement accuracy determination step).

[0076] Then, in step S314, if the difference is greater than the threshold value, the screen unit 350 displays a measurement abnormality notification, or the audio unit 360 outputs a measurement abnormality notification voice (measurement abnormality notification step).

[0077] By doing so, if the measured position information deviates significantly from the expected value, the surveyor W can recognize that there has been a measurement abnormality. In particular, in this disclosure, since the surveyor W does not directly instruct the timing of position measurement, it is important to be able to check the accuracy to a certain extent after the fact.

[0078] Moreover, the third embodiment is more effective when combined with the second embodiment. That is, when measuring the positions of a plurality of points consecutively, if a measurement abnormality occurs, it may take extra time to repeat the measurement, but by combining the second and third embodiments, it is possible to check whether there is an abnormality each time a measurement is performed, and it is possible to avoid significant rework.

[0079] Specifically, after step S303 in FIG. 3, a loop including steps S313 and S314 in FIG. 5 may be executed.

[0080] Next, a fourth embodiment will be described with reference to Fig. 6. The fourth embodiment is another embodiment related to the function of determining the measurement accuracy. The following describes the fourth embodiment, focusing on the differences from the first to third embodiments.

[0081] <Fourth embodiment> In step S212 in FIG. 6, unlike step S202 in FIGS. 3 and 5, even after the detection of the tilt that was the basis for transmitting the measurement instruction in step S302, the tilt is continuously detected (tilt continuous detection step).

[0082] In this example, when the first detected tilt 1 is within a predetermined tilt range, and the next detected tilt 2 is also within the predetermined range, the measurement instruction unit 321 determines that the predetermined tilt has been maintained for a predetermined period of time and transmits a measurement instruction.

[0083] However, in step S313, it is determined that a measurement abnormality has occurred when the slope 3 detected after the measurement instruction was sent has fluctuated significantly with respect to the slope 2. In other words, when the measurement accuracy determination unit 322 determines that the relationship between the slopes 2 and 3 has fluctuated by a predetermined amount or more within a predetermined time, the screen unit 350 displays a measurement abnormality notification, or the audio unit 360 outputs a measurement abnormality notification sound (measurement abnormality notification step).

[0084] The reason for doing this is that even if it is determined that the verticality is being maintained, if the inclination subsequently changes significantly, there is a risk that the verticality may have been lost between the time the inclination is transmitted and the time the position is actually measured by the surveying instrument 100.

[0085] This suggests that even after the perpendicularity had been confirmed and measurements taken, the perpendicularity may have been lost after the fact, and Surveyor W could consider the opportunity to redo the measurement at his discretion.

[0086] Although the description of the embodiment of the present invention is finished above, the aspect of the present invention is not limited to this embodiment. The first embodiment can be used as a base and further combined with the second to fourth embodiments. [Explanation of symbols]

[0087] W Surveyor T Measurement target 100 Surveying instruments 200 Target holder 210 Target 220 Rod-shaped part 221 Tip 300 Measurement instruction device 321 Measurement instruction section 322 Measurement accuracy judgment section 350 Screen section 360 Audio section 400 Level 410 Tilt display unit

Claims

1. A surveying instrument capable of automatically tracking and measuring the position of a target using a light beam; A linear target holder that holds the target and has a known length from its tip to the target; a level that is held integrally with the target holder and is capable of measuring the inclination of the orientation of the target holder with the tip of the target holder in contact with an object to be measured; a measurement instruction device having a measurement instruction unit that transmits an instruction to the surveying instrument to measure the position of the target when the level detects a predetermined inclination, the measurement method comprising: a target setting step in which the surveyor brings the tip of the target holder into contact with a measurement target; a measurement standby step in which the surveyor operates the measurement instruction device to standby for measurement; a tilt detection step in which the level transmits the detected tilt to the measurement indication device; When the measurement instruction unit detects that the received tilt is maintained within a predetermined range for a predetermined period of time or more, a measurement instruction step of transmitting a measurement instruction to the surveying instrument; A surveying method comprising a measuring step of measuring the position of the target based on the measurement instruction received by the surveying instrument.

2. The measurement instruction device further includes a screen unit or an audio unit, After the measurement step, a measurement completion notification step is performed in which the screen unit displays a measurement completion notification or the audio unit outputs a measurement completion notification sound; 2. The surveying method according to claim 1, further comprising a continuous surveying mode in which the method returns to the target setting step and repeats the measurement loop from the target setting step to the measurement completion notification step a fixed number of times.

3. The measurement instruction device has a display unit or an audio unit, A storage unit in which a location to be surveyed is stored in advance; a measurement accuracy determination unit that calculates a difference between the position of the target measured in the measuring step and the planned position to be surveyed, the measurement accuracy determination unit performs a measurement accuracy determination step of calculating the difference after the measurement step and determining whether the difference is greater than a threshold value; 2. The surveying method according to claim 1, further comprising a measurement abnormality notification step of displaying a measurement abnormality notification on the screen unit or outputting a measurement abnormality notification sound from the audio unit when the difference is greater than a threshold value.

4. The measurement instruction device further includes a measurement accuracy determination unit and a display unit or an audio unit, a continuous tilt detection step in which the level continuously performs the tilt detection step; 2. The surveying method according to claim 1, further comprising a measurement abnormality notification step in which, when the inclination detected in the inclination continuing detection step fluctuates by a predetermined amount or more within a predetermined time, the measurement accuracy determination unit displays a measurement abnormality notification on the screen unit or the audio unit outputs a measurement abnormality notification sound.

5. A surveying device that can automatically track and measure the position of a target using a light beam, a linear target holder that holds the target and has a known length from its tip to the target, a level that is held integrally with the target holder and can measure the inclination of the target holder with the tip of the target holder in contact with an object to be measured, and a measurement instruction device having a measurement instruction unit that transmits an instruction to the surveying device to measure the position of the target when the level detects a predetermined inclination, said program being stored and executed in the measurement instruction device, a measurement standby step in which the device waits for measurement in response to an operation by a surveyor; a measurement instruction step in which the measurement instruction unit transmits a measurement instruction to the surveying instrument when it detects that the inclination received from the level has been maintained within a predetermined range for a predetermined period of time or more; A surveying program for carrying out the above.

6. 1. A surveying system comprising: A surveying instrument capable of automatically tracking and measuring the position of a target using a light beam; A linear target holder that holds the target and has a known length from its tip to the target; a level that is held integrally with the target holder and is capable of measuring the inclination of the orientation of the target holder with the tip of the target holder in contact with an object to be measured; a measurement instruction device having a measurement instruction unit that transmits an instruction to the surveying instrument to measure the position of the target when the level detects a predetermined inclination, The measurement indicating device is The surveyor operates the device to wait for measurement, When it is detected that the inclination received from the level is maintained within a predetermined range for a predetermined period of time or more, A surveying system comprising a measurement instruction unit that transmits measurement instructions to the surveying instrument.

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