Measurement system and method for controlling measurement system

Abstract

To provide a highly convenient surveying system, a surveying device, and a control method.SOLUTION: A survey system 1 includes a survey device 2 capable of surveying an object to be measured, an acceleration sensor 211 capable of detecting acceleration of the survey device 2, an output device capable of outputting information, a storage unit 41 that stores history information of acceleration and a correspondence table in which a predetermined detection target state and an operation content based on the acceleration are associated with each other, and a control unit 212 that, when it is determined that the acceleration detected by the acceleration sensor 211 corresponds to a detection target state 432b of the survey device 2 associated based on the history information 431, controls the output device to perform outputting according to an operation content 432b corresponding to the detection target state 432c.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to a surveying system, a surveying instrument, and a control method. [Background technology]

[0002] Surveying devices such as total stations, as disclosed in Patent Document 1, collimate the object to be measured, measure the horizontal and vertical angles, and measure the distance from the device to the object by irradiating the object with a distance measuring beam. When conducting a survey using a surveying device, first, installation work is performed to align the instrument station with an observation point on the ground and level the device. After installation, the surveying device can then conduct a survey of the object to be measured from a reference point. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] International Publication No. 2016 / 039053 Summary of the Invention [Problem to be solved by the invention]

[0004] To conduct accurate surveying, the surveying equipment needs to be installed and stabilized. However, if the user has to confirm that installation is complete and the timing of the survey is appropriate (for example, when there is minimal vibration from the surrounding environment), this can be time-consuming and can lead to variations in skill.

[0005] The present invention has been made to solve these problems, and its object is to provide a highly convenient surveying system, surveying instrument, and control method that can grasp the state of the surveying instrument. [Means for solving the problem]

[0006] In order to achieve the above-mentioned object, the surveying system of the present invention comprises a surveying device capable of surveying a measurement object, an acceleration sensor capable of detecting the acceleration of the surveying device, an output unit capable of outputting information, a memory unit that stores historical information of the acceleration and a correspondence table that matches predetermined detection object states and operation contents based on the acceleration, and a control unit that, when it is determined that the acceleration detected by the acceleration sensor corresponds to the detection object state of the surveying device that is associated based on the historical information, controls the output unit to output the operation content that corresponds to the detection object state.

[0007] In addition, in the above-mentioned surveying system, the control unit may function as a state analysis unit that executes a learned program that has learned the acceleration of the historical information and the state of the surveying device and is capable of determining whether the acceleration detected by the acceleration sensor corresponds to any of the states to be detected.

[0008] In the above-mentioned surveying system, the correspondence table includes reference information that is a judgment criterion set based on the history information in correspondence with the state of the detection object and the operation content, When the acceleration detected by the acceleration sensor satisfies the determination criterion, the control unit may determine whether the acceleration corresponds to any one of the detection target states.

[0009] In the above-described surveying system, the acceleration may be calculated by averaging the values ​​detected by the acceleration sensor a predetermined number of times.

[0010] In the above-mentioned surveying system, the operation content may include a plurality of operation content corresponding to one or both of an abnormal operation and a state transition.

[0011] In addition, in the above-mentioned surveying system, the acceleration sensor may be provided at part or all of the center of gravity position of the surveying device, a position closer to the support end than the center of gravity position, and a free end position opposite the support end position relative to the center of gravity position.

[0012] In order to achieve the above-mentioned object, the surveying device of the present invention comprises a surveying unit capable of surveying a measurement object, an acceleration sensor capable of detecting acceleration, an output unit capable of outputting information, a memory unit that stores historical information of the acceleration and a correspondence table that matches predetermined detection object states and operation contents based on the acceleration, and a control unit that, when it is determined that the acceleration detected by the acceleration sensor corresponds to the detection object state associated based on the historical information, controls the output unit to output the operation content that corresponds to the detection object state.

[0013] In order to achieve the above-mentioned object, the control method of the present invention is a vibration detection method in a surveying system, the surveying system comprising a surveying device capable of surveying a measurement object, an acceleration sensor capable of detecting the acceleration of the surveying device, an output unit capable of outputting information, and a memory unit that stores a correspondence table that associates historical information of the acceleration with predetermined detection object states and operation contents based on the acceleration, and includes the steps of: determining that the acceleration detected by the acceleration sensor corresponds to the detection object state of the surveying device that is associated based on the historical information; and, when it is determined that the detected acceleration corresponds to the detection object state, controlling the output unit to output the operation content that corresponds to the detection object state. [Effects of the Invention]

[0014] The surveying instrument, surveying system and control method according to the present invention using the above means can grasp the state of the surveying instrument and provide high convenience. [Brief explanation of the drawings]

[0015] [Figure 1] 1 is an overall configuration diagram of a surveying system according to an embodiment of the present invention. [Figure 2] FIG. 1 is a schematic diagram of a surveying instrument equipped with a plurality of acceleration sensors. [Figure 3] FIG. 2 is a control block diagram of the surveying system. [Figure 4] 10 is a flowchart showing a control method in a surveying system. DETAILED DESCRIPTION OF THE INVENTION

[0016] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[0017] 1 is a diagram showing the overall configuration of a surveying system 1 according to an embodiment of the present invention. Note that the structure and layout of each device are shown schematically and not to the actual scale for the sake of convenience of explanation.

[0018] The surveying system 1 includes a surveying device 2, a terminal 3, and an external device 4. In this embodiment, the surveying device 2 and the terminal 3 are connected to each other so that they can communicate with each other, and the terminal 3 and the external device 4 are also connected to each other so that they can communicate with each other. A wireless communication method such as Bluetooth (registered trademark) is used as the communication method. Alternatively, a wired communication method connected via a connection terminal may be used. The surveying device 2 is, for example, a total station, and is installed on legs 5 such as a tripod (centering rod). It can measure the angle and distance to a measurement target to perform surveying. The surveying device 2 includes a leveling unit 21 supported by the legs 5 for leveling, a base unit 22 mounted on the leveling unit 21, a main unit 23 rotatable about a vertical axis of the base unit 22, and a telescope unit 24 rotatable about a horizontal axis on the main unit 23. Therefore, the telescope unit 24 is rotatable about a horizontal axis and a vertical axis relative to the base unit 22. Leveling may be performed manually by an operator by adjusting the leveling unit 21, or may be performed automatically.

[0019] Any device such as a personal computer, a tablet, a smartphone, a PDA (personal digital assistant), etc. may be used as the terminal 3. The terminal 3 may have a function to remotely control the surveying instrument 2.

[0020] The external device 4 stores history information 431, reference information 432a, etc. (see FIG. 2) related to vibrations acquired by the surveying device 2. The external device 4 may be a server (for example, an on-premise server or a cloud server) connected via a network such as a LAN or a WAN.

[0021] FIG. 2 is a schematic diagram of the surveying device 2 as seen from the front side. The surveying device 2 is equipped with an acceleration sensor 211. The acceleration sensor 211 is a detection unit that can directly or indirectly detect the acceleration of a surveying unit 213, which includes a distance measuring unit 207 that measures the distance to the measurement target, a tracking light transmitting and receiving unit 208 that tracks the measurement target using tracking light, a horizontal angle detecting unit 209, and a vertical angle detecting unit 210 (see also the control block diagram in FIG. 3). The surveying unit 213 is a functional unit that enables surveying of the measurement target. The distance measuring unit 207, the tracking light transmitting and receiving unit 208, the horizontal angle detecting unit 209, and the vertical angle detecting unit 210 included in the surveying unit 213 are directly or indirectly connected by a housing of the surveying device 2 or the like. Therefore, when the surveying device 2 vibrates or its attitude changes due to an external force, the acceleration sensor 211 detects acceleration in response to the vibration or change in attitude transmitted to the surveying unit 213. The acceleration sensor 211 is connected to a control unit 212 mounted on the surveying device 2. The control unit 212 can determine that the surveying device 2 has received external vibrations or that the attitude of the surveying device 2 has changed by detecting acceleration with the acceleration sensor 211. The control unit 212 averages the detection values ​​detected by the acceleration sensor 211 for a predetermined number of detections and uses the average value thus obtained as the acceleration in this embodiment. The acceleration sensor 211 may be provided directly on a housing or the like that constitutes the surveying unit 213, or may be provided indirectly via another member.

[0022] 2 is a schematic diagram of a surveying instrument 2 equipped with a plurality of acceleration sensors 211 (211a to 211d). One or more acceleration sensors 211 can be provided.

[0023] The first acceleration sensor 211a is provided below the base unit 22 side of the main body unit 23. The second acceleration sensor 211b is provided above the first acceleration sensor 211a (on the opposite side from the legs 5) and on the side wall side of the housing of the main body unit 23. The third acceleration sensor 211c is provided in the telescope unit 24. Furthermore, the fourth acceleration sensor 211d is provided in the handle unit 25. The acceleration sensors 211 are provided in some or all of the following positions: approximately at the center of gravity of the surveying instrument 2 (in the example of FIG. 2, the position where the third acceleration sensor 211c is provided), at a position closer to the support end than the center of gravity (in the example of FIG. 2, the position on the base unit 22 side where the first acceleration sensor 211a is provided), and at a free end position opposite the support end position with respect to the center of gravity (in the example of FIG. 2, the position on the handle unit 25 side where the fourth acceleration sensor 211d is provided).

[0024] If the fourth acceleration sensor 211d is located at the free end, high detection sensitivity can be achieved because the displacement increases when the surveying instrument 2 vibrates. Also, if the fourth acceleration sensors 211d are provided at two locations, one on the left and one on the right side of the handle portion 25, the inclination of the surveying instrument 2 can be detected with high detection sensitivity.

[0025] The number and positions of the acceleration sensors 211 (211a to 211d) are examples, and one or more acceleration sensors 211 can be provided at any position on the surveying instrument 2. The acceleration sensors 211 may be provided at some of the positions shown in FIG. 2, or may be provided at additional positions in addition to those shown in FIG. 2.

[0026] 3 is a control block diagram of the surveying system 1. First, the configuration of the surveying device 2 will be described. The communication unit 201 is a communication means capable of communicating with the terminal 3 and other devices. The storage unit 202 is configured to be able to store various data such as various programs such as control programs for tracking and surveying, surveying data, GPS time, the size (height, width, depth, etc.) of the surveying device 2, and images received (captured) by the tracking light transmitting and receiving unit 208.

[0027] The display unit 203 can display images captured by the tracking light transmitting and receiving unit 208, and is provided, for example, at the rear of the main body 23. The operation unit 204 is an operating means that can input various operational instructions and settings. For example, operational instructions can include switching the power on and off, triggering to start surveying, switching the surveying mode, setting the surveying cycle, etc. The operation unit 204 may also include any operation or input device, such as a switch, button, or dial. If the display unit 203 is a touch panel, the display unit 203 and the operation unit 204 may be formed integrally.

[0028] The distance measuring unit 207 includes a light transmitting unit that emits distance measuring light, and a light receiving unit that receives the reflected light that is irradiated with the distance measuring light from the light transmitting unit and reflected by the measurement object. The measurement object is, for example, a prism, which is a retroreflective member provided on a pinpole or the like. Note that the measurement object is not limited to a retroreflective member, and may be any other reflective member (for example, a reflective sheet, a target plate, or a wall) that has a reflective function sufficient to reflect light irradiated from the surveying device 2 and allow the surveying device 2 to detect the reflected light.

[0029] The distance measuring unit 207 measures the distance (slope distance) from the surveying device 2 to the measurement object by emitting distance measuring light, for example, pulsed laser light, and receiving light reflected by the measurement object. Note that the distance measuring method is not limited to such a pulse method, and it is also possible to apply a well-known method such as a so-called phase difference method that measures distance based on the number of waves of laser light.

[0030] Tracking light transmitting and receiving unit 208 is a light source capable of irradiating tracking light toward the measurement object. Tracking light transmitting and receiving unit 208 also has a light receiving element such as an image sensor (CCD sensor, CMOS sensor, etc.) that receives a portion of the tracking light reflected by the measurement object and converts it into an electrical signal. Control unit 212 can control the tracking function of the measurement object by controlling horizontal rotation drive unit 205 and vertical rotation drive unit 206 so that the light receiving element continues to receive the tracking light emitted from the light source.

[0031] Horizontal rotation drive unit 205 controls main body unit 23 so that it can rotate horizontally around a vertical axis relative to base unit 22. Vertical rotation drive unit 206 controls telescope unit 24 so that it can rotate vertically around a horizontal axis relative to main body unit 23.

[0032] The main body 23 is provided with a horizontal angle detector 209 (horizontal encoder) that detects the horizontal rotation angle of the main body 23 (i.e., the rotation angle around the vertical axis), and a vertical angle detector 210 (vertical encoder) that detects the vertical rotation angle of the telescope 24 (i.e., the rotation angle around the horizontal axis). The telescope 24 houses a telescope including an optical system capable of collimating a measurement target. The telescope 24 incorporates a distance measuring unit 207 including a distance measuring optical system, and part of the optical path of the distance measuring optical system of the distance measuring unit 207 is shared with part of the optical system of the telescope. Light emitted from the distance measuring unit 207 or the tracking light transmitting and receiving unit 208 is guided coaxially with the collimation axis from the objective side of the telescope 24 and emitted. The distance measuring unit 207 or the tracking light transmitting and receiving unit 208 receives light incident through the aperture surface of the telescope 24.

[0033] The control unit 212 is provided, for example, in the main body 23 of the surveying device 2. The control unit 212 acquires, stores, calculates, etc. various information such as the angles (horizontal angle and vertical angle) detected by the horizontal angle detection unit 209 and the vertical angle detection unit 210, the distance (slant distance) measured by the distance measurement unit 207, and the image captured by the tracking light transmitting and receiving unit 208, and displays the acquired results and calculation results on the display unit 203, for example. The control unit 212 also performs drive control, etc. of each unit in response to an operation on the operation unit 204 or in response to the calculation results.

[0034] The terminal 3 has a control unit, a memory unit, an operation unit, a display unit, a communication unit, etc. (details not shown). The terminal 3 can send and receive information to and from the surveying device 2 and the external device 4 via the communication unit. The terminal 3 can also remotely control the surveying device 2 in response to input operations on the operation unit, and can acquire information such as the surveying results of the surveying device 2 and display it on the display unit.

[0035] The external device 4 has a control unit 41, a communication unit 42, and a storage unit 43. The storage unit 43 stores history information 431, which is a past detection history of acceleration detected by the acceleration sensor 211 of the surveying device 2, and a correspondence table 432. The external device 4 acquires input of acceleration detected by the acceleration sensor 211 of the surveying device 2 via the communication unit 201, the terminal 3, and the communication unit 42, and stores the input as history information 431. The history information 431 may include, for example, the detected acceleration value, the detection time, and the state of the surveying device 2 at the time of detection (e.g., the occurrence of large vibrations or tilt due to an earthquake or a gust of wind). The surveying device 2 also stores the acceleration detected by the acceleration sensor 211 as history information 431. In this case, the surveying device 2 may store the detected acceleration as history information 431 if the detected acceleration is equal to or greater than a predetermined threshold, and may process the detected acceleration not to be included in the history information 431 if the detected acceleration is less than the predetermined threshold.

[0036] The correspondence table 432 stores reference information 432a set based on the history information 431, a state 432b of the surveying device 2 to be detected, and operation details 432c corresponding to the reference information 432a. The reference information 432a is set based on the history information 431, and may be set as the threshold for abnormality determination, for example, an absolute value or relative value set in advance with respect to acceleration when the surveying device 2 is in a state where it can operate normally, or a detection pattern of acceleration when an abnormality has occurred in the past in the history information 431 may be set as the criterion for abnormality determination.

[0037] The reference information 432a includes thresholds and patterns of vibrations and displacements of the surveying instrument 2, and is set in accordance with the detection target conditions 432b, such as shaking of heavy machinery, shaking from wind, shaking when installed on a high floor, shaking during an earthquake, impact when another object collides with the surveying instrument 2, or misleveling of the surveying instrument 2. In other words, the detection target conditions 432b are physical external factors that can be classified based on acceleration and that affect the accuracy of measurements (including angle and distance measurements) made by the surveying instrument 2.

[0038] The operation content 432c is the content of the countermeasure operation for the detection target state 432b, and can include one or both of an abnormal operation and a state transition as output control. The abnormal operation includes stopping or prohibiting measurement by the distance measurement unit 207 or the tracking light transmitting and receiving unit 208, and angle measurement by the horizontal angle detection unit 209 or the vertical angle detection unit 210. The abnormal operation also includes displaying a warning that an abnormality has been determined, outputting a sound or turning on a light (speaker and light-emitting unit are not shown), etc.

[0039] In terms of state transitions, the surveying device 2 is running in the background, and when the acceleration input detected by the acceleration sensor 211 detects that the surveying device 2 is placed horizontally and fixed with the centering rod, the control unit 212 starts the main power supply, displays "Measurement possible" on the display unit 203, and transitions the surveying unit 213 to a standby state where it can conduct surveying.

[0040] Furthermore, the detection pattern of acceleration detected by the acceleration sensor 211 (including the case where acceleration is detected by multiple acceleration sensors 211 (211a to 211d)) has a certain correlation with vibrations, changes in posture, and the like that affect the measurement accuracy of the surveying instrument 2. For example, acceleration detected when an earthquake or a gust of wind occurs is detected as a value greater than acceleration under normal conditions. Furthermore, if the surveying instrument 2 is leveled and the fluctuations in acceleration detected by the acceleration sensor 211 are small, it can be determined that installation is complete. Therefore, the control unit 41 may function as a state analysis unit 411 that determines which detection target state 432b a newly detected acceleration corresponds to by executing a learned program that has performed machine learning (so-called deep learning) using the acceleration stored in the past history information 431 as learning data and the state of the surveying instrument 2. The machine learning program and the learned program can be stored in the storage unit 43.

[0041] Here, each step of the control method in the surveying system 1 will be described with reference to FIG. 4 etc. First, in step S01, the control unit 212 detects abnormal vibration of the surveying device 2. Whether or not abnormal vibration has occurred is determined based on whether or not the surveying device 2 receives external vibration or the like and the acceleration sensor 211 detects acceleration equal to or greater than a predetermined threshold. If the acceleration input detected from the acceleration sensor 211 is equal to or greater than the predetermined threshold, the control unit 212 determines that abnormal vibration has been detected, and proceeds to the processing of step S02. Note that in step S01, if multiple acceleration sensors 211 are used, the control unit 212 can determine that abnormal vibration has been detected if it determines that some or all of the accelerations detected by the multiple acceleration sensors 211 are equal to or greater than a predetermined threshold.

[0042] In step S02, the control unit 212 refers to the correspondence table 432 stored in the external device 4 via the communication unit 201, and determines whether the acceleration detected in step S01 corresponds to the reference information 432a (whether the acceleration satisfies a set threshold or matches a pattern). Whether the detected acceleration corresponds to the reference information 432a may be determined based on the accelerations detected by some of the acceleration sensors 211, or may be determined comprehensively based on the accelerations detected by multiple acceleration sensors 211. If the determination in step S02 is true (Yes), the control unit 212 performs the process of step S03, and if the determination in step S02 is false (No), the control unit 212 ends the process.

[0043] In step S02, the control unit 212 may execute a learned program that has learned the acceleration in the history information 431 and the state of the surveying instrument 2, and determine whether the acceleration detected by the acceleration sensor 211 corresponds to any of the detection target states 432b. In this case, the control unit 212 performs the process of step S03 if the determination in step S02 is true (Yes), and terminates the process if the determination in step S02 is false (No). In step S02, the control unit 212 may make the determination using both the reference information 432a and the learned program, or may make the determination using either one of them.

[0044] In step S03, control unit 212 controls the output of output units capable of outputting information such as communication unit 201, display unit 203, horizontal rotation drive unit 205, vertical rotation drive unit 206, distance measurement unit 207, and tracking light transmitting and receiving unit 208, in accordance with the content of operation content 432c corresponding to detection target state 432b determined in step S02, using correspondence table 432. Note that the information that can be output by the output units may be information such as a control signal.

[0045] As an example of the operation content 432c, when the acceleration detected by the acceleration sensor 211 is determined to be "earthquake shaking," the control unit 212 can stop or prohibit distance measurement and angle measurement operations, or can cause the display unit 203 to display a message that seismic motion has been detected. Furthermore, a diagnosis can be performed by including a failure or component life (wear) state of the surveying device 2 (including components, elements, etc.) as the detection target state 432b, and the content and level of symptoms corresponding to the diagnosis results can be displayed on the display unit 203, etc. as the operation content 432c. For example, the control unit 212 can display, on the display unit 203, etc., the part determined to be faulty and the content of the fault, as the operation content 432c.

[0046] As described above, in this embodiment, the surveying system 1 includes the surveying device 2 capable of surveying a measurement target, the acceleration sensor 211 capable of detecting the acceleration of the surveying device 2, the output unit, the storage unit 43 that stores acceleration history information 431 and a correspondence table 432 that associates the detection target state 432b with the operation details 432c, and the control unit 212 that controls the output unit to output the operation details 432c corresponding to the detection target state 432b when it is determined that the acceleration detected by the acceleration sensor 211 corresponds to the detection target state 432b of the surveying device 2 associated based on the history information 431. This configuration makes it possible to avoid surveying in an unleveled state or erroneous construction, and to automatically switch the operation mode of the surveying device 2. Furthermore, since it is possible to refer to the past history information 431 of the surveying device 2, it is also possible to check the status of the surveying device 2 in an emergency or abnormal situation. Therefore, it is possible to grasp the state of the surveying instrument 2 and to configure a highly convenient surveying system 1, surveying instrument 2, and control method.

[0047] Although the description of the embodiment of the present invention has been completed above, the aspects of the present invention are not limited to this embodiment.

[0048] For example, in the above embodiment, the surveying device 2 is configured to communicate with the external device 4 via the terminal 3, but it may be configured to be able to communicate with the external device 4 directly.

[0049] Furthermore, the history information 431 and the correspondence table 432 may be stored in one device (the external device 4 in this embodiment) or in a plurality of devices.

[0050] Furthermore, the output controllable output unit in step S03 of FIG. 4 may be provided in the surveying device 2, or may be provided in the terminal 3, the external device 4, or other devices. [Explanation of symbols]

[0051] 1. Surveying System 2 Surveying equipment 3. Terminal 4 External device 5 Legs 21 Leveling section 22 Base 23 Main body 24 Telescope Department 25 Handle 41 Control Unit 42 Communications Department 43 Storage section 201 Communications Department 202 Storage section 203 Display section 204 Operation section 205 Horizontal rotation drive unit 206 Vertical rotation drive unit 207 Ranging section 208 Tracking light transmitting and receiving unit 209 Horizontal angle detector 210 Vertical angle detection unit 211 Acceleration Sensor 211a First acceleration sensor 211b Second acceleration sensor 211c Third acceleration sensor 211d Fourth acceleration sensor 212 Control Unit 213 Survey Department 411 Condition Analysis Unit 431 History Information 432 Reference Table 432a References 432b Detection target state 432c Operation details

Claims

1. A surveying system capable of surveying a measurement object, a surveying instrument, a terminal having a display unit and a communication unit for remotely operating the surveying instrument, and an external device which is a server having a control unit; the surveying instrument, the terminal, and the external device are capable of communicating with each other; The surveying device has a housing, a control unit, an output unit capable of outputting information, a base unit, a main body unit provided on the base unit so as to be rotatable about a vertical axis, a telescope unit provided on the main body unit so as to be rotatable about a horizontal axis, and a handle unit provided above the main body unit, a first acceleration sensor, a second acceleration sensor, a third acceleration sensor, and a fourth acceleration sensor, which are acceleration sensors capable of detecting the acceleration of the surveying instrument; the first acceleration sensor is provided below the base portion side of the main body portion, the second acceleration sensor is provided above the first acceleration sensor and on a side wall of the housing of the main body, the third acceleration sensor is provided in the telescope unit, the fourth acceleration sensor is provided in the handle portion, Furthermore, the external device or the storage unit a correspondence table in which reference information, which is a judgment criterion including thresholds and patterns of vibration or displacement of the surveying instrument set based on the history information, detection target states, which are physical external factors that affect the accuracy of the surveying instrument and can be classified based on the acceleration corresponding to the reference information, and operation contents, which include one or both of abnormal operation and state transition for the detection target states as output control, are associated with each other; Remember, A control unit of the external device or the surveying device, determining whether or not the acceleration of a part or all of the acceleration sensors corresponds to any of the detection target states when the acceleration is equal to or greater than a predetermined threshold included in the reference information; outputting information for the operation content corresponding to the determined state to be detected; Surveying system.

2. 2. The method according to claim 1, wherein the reference information, the detection target state, the operation content, and the correspondence table in which these are associated with each other are stored in the external device. Surveying system.

3. The control unit of the external device or the surveying instrument according to claim 1 includes a state analysis unit that determines whether newly detected acceleration corresponds to any of the detection target states by executing a trained program that has been trained using acceleration stored in past history information as learning data and the state of the instrument. Surveying system.

4. 4. The method according to claim 3, wherein the detection target state includes at least shaking caused by heavy machinery, shaking caused by wind, shaking when the surveying instrument is installed on a high floor, shaking during an earthquake, or an impact when another object collides with the surveying instrument. Surveying system.

5. The abnormal operation includes at least stopping or prohibiting angle measurement, displaying a warning that an abnormality has been determined, outputting a sound, or outputting a light display.

5. The method according to claim 4, wherein the output unit is at least one of a display unit, a speaker, and a light-emitting unit corresponding to the abnormal operation. Surveying system.

6. the output unit is the display unit, The state transition occurs when the surveying instrument is running in the background, 2. The method according to claim 1, wherein the control unit includes an output for starting a main power supply and causing the display unit to display that measurement is possible, or for causing the surveying instrument to transition to a standby state where measurement is possible, when the control unit detects that the state to be detected is that the surveying instrument is fixed by a centering rod. Surveying system.

7. A control method for a surveying system capable of surveying a measurement object, comprising: a surveying instrument, a terminal having a display unit and a communication unit for remotely operating the surveying instrument, and an external device which is a server having a control unit; the surveying instrument, the terminal, and the external device are capable of communicating with each other; The surveying device has a housing, a control unit, an output unit capable of outputting information, a base unit, a main body unit provided on the base unit so as to be rotatable about a vertical axis, a telescope unit provided on the main body unit so as to be rotatable about a horizontal axis, and a handle unit provided above the main body unit, a first acceleration sensor, a second acceleration sensor, a third acceleration sensor, and a fourth acceleration sensor, which are acceleration sensors capable of detecting the acceleration of the surveying instrument; the first acceleration sensor is provided below the base portion side of the main body portion, the second acceleration sensor is provided above the first acceleration sensor and on a side wall of the housing of the main body, the third acceleration sensor is provided in the telescope unit, the fourth acceleration sensor is provided in the handle portion, Furthermore, the external device or the storage unit a correspondence table in which reference information, which is a judgment criterion including thresholds and patterns of vibration or displacement of the surveying instrument set based on the history information, detection target states, which are physical external factors that affect the accuracy of the surveying instrument and can be classified based on the acceleration corresponding to the reference information, and operation contents, which include one or both of abnormal operations and state transitions for the detection states as output control, are associated with each other; a step in which a control unit of the external device or the surveying instrument determines whether or not the acceleration of some or all of the acceleration sensors corresponds to any of the detection target states based on the acceleration being equal to or greater than a predetermined threshold value included in the reference information; a step of causing a control unit of the external device or the surveying instrument to output information for the operation content corresponding to the determined state of the detection target, Methods for controlling surveying systems.

Images