Rotating laser system and method for controlling a rotating laser system

Abstract

To provide a highly convenient rotary laser system, a rotary laser device, and a control method.SOLUTION: A rotary laser system includes a rotary laser device (2) capable of emitting a laser beam, an acceleration sensor (223) capable of detecting acceleration of the rotary laser device (2), an output unit capable of outputting information, a storage unit configured to store history information of the acceleration and a correspondence table in which a predetermined detection target state based on the acceleration is associated with an operation content, and a control unit configured to control output of the output unit with the operation content corresponding to the detection target state when it is determined that the acceleration detected by the acceleration sensor (223) corresponds to the detection target state of the associated rotary laser device (2) based on the history information.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to a rotary laser system, a rotary laser device, and a control method. [Background technology]

[0002] Conventionally, rotary laser devices have been proposed that can mark a predetermined plane direction by rotating and emitting a laser beam around the circumference. For example, the rotary laser device disclosed in Patent Document 1 includes a light emitting unit that emits a laser beam and a rotating unit that rotates and irradiates the laser beam, and is configured to be able to form a reference plane. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2011-203130 Summary of the Invention [Problem to be solved by the invention]

[0004] In order to accurately mark out (form a reference surface) using a rotary laser device, the rotary laser device needs to be stable in its installed state. However, if the user has to confirm the completion of installation and the appropriate timing for emitting the laser beam (for example, a timing with 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 purpose is to provide a highly convenient rotary laser system, rotary laser device, and control method that can grasp the state of the rotary laser device. [Means for solving the problem]

[0006] In order to achieve the above-mentioned object, the rotary laser system comprises a rotary laser device capable of emitting laser light, an acceleration sensor capable of detecting the acceleration of the rotary laser 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 target 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 target state of the rotary laser device associated based on the historical information, controls the output unit to output the operation content corresponding to the detection target 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 rotary laser 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 addition, in the above-mentioned surveying system, the correspondence table may include reference information which is a judgment criterion set based on the historical information in correspondence with the state to be detected and the operation content, and the control unit may determine whether the acceleration detected by the acceleration sensor corresponds to one of the states to be detected when the acceleration satisfies the judgment criterion.

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

[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 of the rotary laser device, a position closer to the support end than the center of gravity, and a free end position opposite the support end position relative to the center of gravity.

[0012] In order to achieve the above-mentioned object, the rotary laser device of the present invention comprises a rotary laser projector capable of emitting laser light, 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 target 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 target state associated based on the historical information, controls the output unit to output the operation content that corresponds to the detection target state.

[0013] In order to achieve the above-mentioned object, the control method of the present invention is a control method for a rotary laser system, the rotary laser system comprising a rotary laser device capable of emitting laser light, an acceleration sensor capable of detecting the acceleration of the rotary laser device, an output unit capable of outputting information, and a memory unit that stores a correspondence table that matches historical information of the acceleration with predetermined detection target states and operation contents based on the acceleration, and includes a step of determining that the acceleration detected by the acceleration sensor corresponds to the detection target state of the rotary laser device associated based on the historical information, and a step of output controlling the output unit with the operation content corresponding to the detection target state when it is determined that the detected acceleration corresponds to the detection target state. [Effects of the Invention]

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

[0015] [Figure 1] 1 is an overall configuration diagram of a rotary laser system according to an embodiment of the present invention; [Figure 2] 2 is a cross-sectional view of the rotary laser device of FIG. 1 taken along line II-II. [Figure 3] 1A and 1B are perspective views showing a rotary laser device in a horizontally placed state and a vertically placed state, respectively. [Figure 4] FIG. 2 is a control block diagram of the rotary laser system. [Figure 5] 1 is a flowchart illustrating a control method in a rotary laser 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 rotary laser 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 ease of explanation.

[0018] The rotary laser system 1 includes a rotary laser device 2, a terminal 3, and an external device 4. In this embodiment, the rotary laser device 2 and the terminal 3 are communicatively connected, and the terminal 3 and the external device 4 are also communicatively connected. A wireless communication means such as Bluetooth (registered trademark) is used as the communication means, but a wired communication means connected via a connection terminal may also be used. The rotary laser device 2 is mounted on a leg (not shown) such as a tripod (centering rod) and can mark out an object by irradiating the object with a laser beam while rotating the emission direction around the outer periphery. The rotary laser device 2 can also form a reference plane with the laser beam and be used to set construction standards in civil engineering work, etc. The rotary laser device 2 includes a leveling unit supported on the leg for leveling. Leveling may be performed manually by an operator by adjusting the leg, or automatic leveling may be used.

[0019] Any device such as a personal computer, a tablet, a smartphone, a PDU (personal digital assistant), etc. may be used as the terminal 3. The terminal 3 may have a function for remotely controlling the rotary laser device 2.

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

[0021] Fig. 2 is a cross-sectional view taken along line II-II of the rotary laser device 2 shown in Fig. 1. The rotary laser device 2 has a light projecting unit 22 housed in a housing 21, and a rotating unit 23 rotatably connected to the housing 21 and the light projecting unit 22 around a rotation axis P. An upper housing 24 is attached to the top of the housing 21, forming a space capable of housing a portion of the state side of the rotating unit 23. A leveling unit (details not shown) capable of adjusting the level of the rotary laser device 2 is provided below the rotary laser device 2.

[0022] Light projecting unit 22 is formed in a hollow cylindrical shape, and is suspended from the top plate within housing 21 while being spaced apart (floating) from bottom surface 21a. Light projecting unit 22 has therein a light emitting element 221 (e.g., a laser diode) that emits laser light L. Light emitting element 221 is arranged so that its optical axis is coaxial with rotation axis P, and the laser light emitted from light emitting element 221 is guided upward along rotation axis P. Light projecting unit 22 also has a condensing lens 222 that condenses laser light L on the optical path of the laser light emitted from light emitting element 221.

[0023] Furthermore, the light projecting unit 22 has an acceleration sensor 223 (third acceleration sensor 223c) below the light emitting element 221 and substantially on the rotation axis P (see also the control block diagram in FIG. 4). The acceleration sensor 223 detects acceleration in response to an impact or tilt that the rotary laser device 2 receives.

[0024] Fig. 3(a) is a perspective view schematically showing the rotary laser device 2 of Fig. 2. The rotary laser device 2 can be provided with one or more acceleration sensors 223. The rotary laser device 2 of this embodiment has acceleration sensors 223 (223a to 223d) arranged at four locations.

[0025] The first acceleration sensor 223a is provided on the bottom surface 21a side located below the housing 21. The second acceleration sensor 223b is provided above the first acceleration sensor 223a and on the sidewall side of the housing 21. The third acceleration sensor 223c is provided below the light-emitting element 221 of the light-projecting unit 22 (i.e., on the opposite side from the support end side of the light-emitting element 221). Furthermore, the fourth acceleration sensor 223d may be provided around the top plate portion of the upper housing 24. In this way, the acceleration sensors 223 are provided in part or all of the following positions: approximately at the center of gravity of the rotary laser device 2 (in the example of FIG. 3(a) , the position where the third acceleration sensor 223c is provided), at a position closer to the support end than the center of gravity (in the example of FIG. 3(a) , the position closer to the bottom surface 21a where the first acceleration sensor 223a is provided), and at a free end position opposite the support end position with respect to the installation unit with respect to the center of gravity (in the example of FIG. 3(a) , a position closer to the upper housing 24).

[0026] Returning to Fig. 2, rotating unit 23 is rotatably provided by connecting the outer peripheral surface at the upper end of cylindrical light-projecting unit 22 and concave engaging unit 231, which is open downward, via bearing 231a. Rotating unit 23 has spur-toothed driven gear 232 that protrudes in the outer direction like a flange. Opening 231b is provided above condenser lens 222, which corresponds to the bottom of engaging unit 231. Rotation of rotating unit 23 is controlled by meshing of spur-toothed drive gear 25a of motor 25 provided inside housing 21 with driven gear 232.

[0027] Rotating unit 23 has a pentaprism 233 arranged on rotation axis P above opening 231b. Pentaprism 233 converts the optical axis of laser light L emitted vertically upward from condenser lens 222 of light projecting unit 22 into a horizontal direction, and emits laser light L to the outside via condenser lens 234 and light-transmitting member 235. In this way, light projecting unit 22 and rotating unit 23 form a rotary laser projecting unit capable of emitting laser light L.

[0028] 4 is a control block diagram of the rotary laser system 1. First, the configuration of the rotary laser 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 stores various programs required to drive the rotary laser device 2. The programs include a light emission control program that controls the light emission of the light emitting element 221 by the light emission drive unit 206, a communication program that communicates with devices such as the terminal 3, and the like.

[0029] The display unit 203 can display the operating state and settings of the rotary laser device 2. The operation unit 204 is an operation means that can input various operation instructions and settings. For example, operation instructions can include switching the power on and off, triggering to start emitting laser light, switching modes, etc. The operation unit 204 may also include any operation device or input device such as a switch, button, or dial. When the display unit 203 is a touch panel, the display unit 203 and the operation unit 204 may be formed integrally.

[0030] 2 to rotate a drive gear 25a meshing with a driven gear 232 of the rotating unit 23, thereby controlling the rotation of the rotating unit 23. The light emission driving unit 206 controls the light emission of the light emitting element 221 by a light emission control program executed by the control unit 207.

[0031] When the rotary laser apparatus 2 vibrates or its posture changes due to an external force, the acceleration sensor 223 detects acceleration in response to the transmitted vibration or posture change. The acceleration sensor 223 is connected to a control unit 207 mounted on the rotary laser apparatus 2. The control unit 207 can determine that the rotary laser apparatus 2 has been subjected to external vibration or that the posture of the rotary laser apparatus 2 has changed based on the acceleration detected by the acceleration sensor 223. The control unit 207 averages the detection values ​​detected by the acceleration sensor 223 for a predetermined number of detections and uses the calculated average value as the acceleration processed in this embodiment. The acceleration sensor 223 may be directly provided on the housing 21, or may be indirectly provided on the housing 21 via another internal member.

[0032] Furthermore, if the fourth acceleration sensor 223d is disposed at the position of the upper housing 24, the amount of displacement will be large when the rotary laser apparatus 2 vibrates. Therefore, by using the fourth acceleration sensor 223d, the control unit 207 can detect displacement, etc. of the rotary laser apparatus 2 with high detection sensitivity. Furthermore, if the fourth acceleration sensors 223d are provided at two locations, on the left and right sides of the upper housing 24, they are provided at positions separated from the installation surface side of the rotary laser apparatus 2, so that abnormal shaking or tilt of the rotary laser apparatus 2 with the installation surface side as a fulcrum can be detected with high detection sensitivity. The fourth acceleration sensors 223d provided at two locations can also detect the tilt of the rotary laser apparatus 2 with high accuracy by performing differential detection.

[0033] The number and positions of the acceleration sensors 223 (223a to 223d) are examples, and one or more acceleration sensors 223 can be provided at any position on the rotary laser device 2. The acceleration sensors 223 may be provided at some of the positions shown in Fig. 3(a), or may be provided at additional positions in addition to those shown in Fig. 3(a).

[0034] The control unit 207 is provided inside the rotary laser device 2. The control unit 207 acquires, stores, calculates, etc. various types of information, and displays the acquired results and calculation results on, for example, the display unit 203. The control unit 207 also controls the driving of each unit in response to an operation on the operation unit 204 or in response to the calculation results.

[0035] The terminal 3 has a control unit, a storage 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 rotary laser device 2 and the external device 4 via the communication unit. The terminal 3 can also remotely control the rotary laser device 2 in response to input operations on the operation unit, and can acquire information such as the operating state of the rotary laser device 2 and the acceleration detected by the acceleration sensor 223, and display it on the display unit.

[0036] The external device 4 includes 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 223 of the rotary laser apparatus 2, and a correspondence table 432. The external device 4 acquires input of acceleration detected by the acceleration sensor 223 of the rotary laser apparatus 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 rotary laser apparatus 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 rotary laser apparatus 2 also stores the acceleration detected by the acceleration sensor 223 as history information 431. In this case, the rotary laser apparatus 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 not include the detected acceleration in the history information 431 if the detected acceleration is less than the predetermined threshold.

[0037] The correspondence table 432 stores reference information 432a set based on the history information 431, a detection target state 432b of the rotary laser device 2, and operation content 432c corresponding to the reference information 432a. The reference information 432a is set based on the history information 431, and for example, an absolute value or relative value set in advance with respect to acceleration when the rotary laser device 2 is in a state where it can operate normally may be used as the threshold for abnormality determination, or a detection pattern of acceleration when an abnormality has occurred in the past in the history information 431 may be set as the determination criterion for abnormality determination.

[0038] The reference information 432a includes thresholds and patterns of vibrations and displacements of the rotary laser device 2, and is set corresponding to the detection target conditions 432b, such as shaking of heavy machinery, shaking by wind, shaking when installed on a high floor, shaking during an earthquake, impact when another object collides with the rotary laser device 2, or misleveling of the rotary laser device 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 marking, etc. of the rotary laser device 2.

[0039] 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 the emission of laser light by the light-projecting unit 22. 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.

[0040] In terms of state transition, the rotary laser device 2 is running in the background, and when the acceleration input detected by the acceleration sensor 223 detects that the rotary laser device 2 is installed horizontally and is installed (fixed) to the installation surface, the control unit 207 starts the main power supply and causes the display unit 203 to display "Available."

[0041] Furthermore, the detection pattern of the acceleration detected by the acceleration sensor 223 (including the case where acceleration is detected by multiple acceleration sensors 223 (223a to 223d)) has a certain correlation with vibrations, changes in posture, and the like that affect the marking accuracy of the rotary laser device 2. For example, the acceleration detected when an earthquake or a gust of wind occurs is detected as a value greater than the acceleration during normal operation. Furthermore, if the rotary laser device 2 is leveled and the fluctuations in the acceleration detected by the acceleration sensor 223 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 of the detection target states 432b a newly detected acceleration corresponds to by executing a learned program that performs machine learning (so-called deep learning) using the acceleration stored in the past history information 431 as learning data and the state of the rotary laser device 2. The machine learning program and the learned program can be stored in the storage unit 43.

[0042] Here, each step of the control method for the rotary laser system 1 will be described with reference to FIG. 5 etc. First, in step S01, the control unit 207 detects abnormal vibration of the rotary laser apparatus 2. Whether or not abnormal vibration has occurred is determined based on whether or not the rotary laser apparatus 2 receives external vibration or the like and the acceleration sensor 223 detects acceleration equal to or greater than a predetermined threshold. If the acceleration input detected from the acceleration sensor 223 is equal to or greater than the predetermined threshold, the control unit 207 determines that abnormal vibration has been detected, and proceeds to processing in step S02. Note that in step S01, if multiple acceleration sensors 223 are used, the control unit 207 can determine that abnormal vibration has been detected if it determines that some or all of the accelerations detected by the multiple acceleration sensors 223 are equal to or greater than a predetermined threshold.

[0043] In step S02, the control unit 207 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 223, or may be determined comprehensively based on the accelerations detected by multiple acceleration sensors 223. If the determination in step S02 is true (Yes), the control unit 207 performs the process of step S03, and if the determination in step S02 is false (No), the control unit 207 ends the process.

[0044] In step S02, the control unit 207 may execute a learned program that has learned the acceleration in the history information 431 and the state of the rotary laser device 2, and determine whether the acceleration detected by the acceleration sensor 223 corresponds to any of the detection target states 432b. In this case, too, the control unit 207 performs the process of step S03 when the determination in step S02 is true (Yes), and ends the process when the determination in step S02 is false (No). In step S02, the control unit 207 may make the determination using both the reference information 432a and the learned program, or may make the determination using either one of them.

[0045] In step S03, the control unit 207 controls the output of an output unit capable of outputting information, such as the communication unit 201 or the display unit 203, in accordance with the content of the operation content 432c corresponding to the state of the object to be detected 432b determined in step S02, using the correspondence table 432. Note that the information that the output unit can output may be information such as a control signal, and the output unit may be a driver or the like that controls each function (element, drive unit, etc.) in the rotary laser device 2.

[0046] As an example of operation content 432c, if the acceleration detected by the acceleration sensor 223 is determined to be "earthquake shaking," the control unit 207 can stop or prohibit the emission of laser light, or cause the display unit 203 to display that seismic motion has been detected.

[0047] 3(b), as another example of the operation content 432c, when the control unit 207 determines that the acceleration detected by the acceleration sensor 223 is in the "horizontal orientation (V orientation)" (i.e., when the control unit 207 determines that the orientation allows laser light to be emitted in a vertical plane with the horizontal direction as the axis), the control unit 207 can switch the settings or operation mode of the rotary laser apparatus 2. Alternatively, when the control unit 207 determines whether the rotary laser apparatus 2 is in an inclined state (detection target state) using the average value of the detection values ​​detected by the acceleration sensor 223, the control unit 207 can optimize the number of detections (average number) of the detection values ​​used to calculate the average value. For example, when the control unit 207 determines that the rotary laser apparatus 2 is in an inclined state based on sudden vibrations received by the rotary laser apparatus 2, the determination of the inclination of the rotary laser apparatus 2 is based on a false detection, and therefore the control unit 207 can change the settings, such as by increasing the average number of average values ​​used to determine the inclination of the rotary laser apparatus 2.

[0048] In this way, the control unit 207 can optimize the number of averaging of the detection values ​​of the acceleration sensor 223 when creating a reference plane (e.g., a sloped plane) by laser light using the detection values ​​of the acceleration sensor 223. The control unit 207 can also optimize the number of averaging of the detection values ​​when leveling by automatic leveling using so-called photoelectric tilt. For example, if the number of averaging of the detection values ​​of the acceleration sensor 223 is increased, the number of averaging of the detection values ​​of the light receiving sensor that detects bubbles in the bubble tube used for photoelectric tilt can be increased.

[0049] As described above, in this embodiment, the rotary laser system 1 includes the rotary laser device 2 capable of emitting laser light, the acceleration sensor 223 capable of detecting the acceleration of the rotary laser device 2, an output unit capable of outputting information, a memory unit 43 storing acceleration history information 431 and a correspondence table 432 in which predetermined detection target states 432b and operation details 432c based on the acceleration are associated, and a control unit 207 that controls the output unit to output operation details 432c corresponding to the detection target state 432b when it is determined that the acceleration detected by the acceleration sensor 223 corresponds to the detection target state 432b of the rotary laser device 2 associated based on the history information 431. This configuration makes it possible to avoid erroneous installation and automatically switch the operating mode of the rotary laser device 2. Furthermore, since it is possible to refer to the past history information 431 of the rotary laser device 2, it is also possible to check the status of the rotary laser device 2 in an emergency or abnormal situation. Therefore, it is possible to configure a highly convenient rotary laser system 1, rotary laser device 2, and control method by understanding the status of the rotary laser device 2.

[0050] 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.

[0051] For example, in the above embodiment, the rotary laser device 2 is described as being configured to communicate with the external device 4 via the terminal 3, but the rotary laser device 2 is described as being configured to be able to communicate with the external device 4 via the terminal 3, but it may also be configured to be able to communicate directly with the external device 4.

[0052] 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.

[0053] Furthermore, the output unit that can be controlled by the control unit 207 is not limited to a functional unit within the rotary laser device 2, but may be a functional unit of the terminal 3, the external device 4, or another device. [Explanation of symbols]

[0054] 1 Rotating Laser System 2 Rotating laser device 3. Terminal 4 External device 21. Cabinet 21a Bottom 22 Light projector 23 Rotating part 24 Upper housing 25 motor 25a drive gear 41 Control Unit 42 Communications Department 43 Storage section 201 Communications Department 202 Storage section 203 Display section 204 Operation section 205 Motor drive unit 206 Light-emitting driver 207 Control Unit 221 Light-emitting element 222 Condenser Lens 223 Accelerometer 223a First acceleration sensor 223b Second acceleration sensor 223c Third Acceleration Sensor 223d Fourth acceleration sensor 231 Engagement part 231a Bearing 231b opening 232 driven gear 233 Pentaprism 234 Condenser Lens 235 Translucent material 411 Condition Analysis Unit 431 History Information 432 Corresponding Table 432a References 432b Detection target state 432c Operation details L laser light P rotation axis

Claims

1. A rotary laser system that can mark an object by irradiating the object with a laser beam while rotating the emission direction, a rotary laser device; a terminal having a display unit and a communication unit for remotely operating the rotary laser device; and an external device which is a server having a control unit; the rotary laser device, the terminal, and the external device are capable of communicating with each other; the rotary laser device includes a control unit, an output unit capable of outputting information, a light projecting unit housed in a housing, and a rotating unit rotatably connected to the housing and the light projecting unit around a rotation axis, an upper housing having a space capable of accommodating a part of the rotating part attached to an upper part of the housing; the light projecting unit has a light emitting element that emits the laser light coaxially with the rotation axis, 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 rotary laser device; the first acceleration sensor is provided at a position closer to the support end than the center of gravity of the rotary laser device on the bottom surface side located below the housing, the second acceleration sensor is provided above the first acceleration sensor and on a sidewall of the housing; the third acceleration sensor is provided at the center of gravity of the rotary laser device, which is lower than the light-emitting element of the light-projecting unit and higher than the first acceleration sensor, the fourth acceleration sensor is provided in the upper housing at a free end position opposite the support end position, Furthermore, the external device or the storage unit a correspondence table in which reference information, which is a judgment criterion including a threshold value and a pattern of vibration or displacement of the rotary laser device set based on the history information, a detection target state, which is a physical external factor that affects the accuracy of the rotary laser device and that corresponds to the reference information and can be classified based on the acceleration, and an operation content, which includes one or both of an abnormal operation and a state transition with respect to the detection target state as an output control, are associated with each other; Remember, A control unit of the external device or the rotary laser 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; Rotating laser 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. Rotating laser system.

3. The control unit of the external device or the rotary laser device includes a state analysis unit that determines whether newly detected acceleration corresponds to any of the detection target states by executing a learned program that performs machine learning using acceleration stored in past history information as learning data and the state of the rotary laser device. Rotating laser system.

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

5. The abnormal operation includes at least stopping or prohibiting emission of laser light, 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 light projecting unit, a speaker, and a light emitting unit corresponding to the abnormal operation. Rotating laser system.

6. the output unit is the display unit, The state transition occurs when the rotary laser device is running in the background, 2. The method according to claim 1, wherein the control unit, when determining that the state to be detected is that the rotary laser device is horizontally installed and installed on an installation target, includes an output for starting a main power supply and displaying a message that the rotary laser device is available on the display unit. Rotating laser system.

7. A control method for a rotary laser system that can perform marking by irradiating a target with a laser beam while rotating the emission direction, comprising: The rotary laser system includes: a rotary laser device; a terminal having a display unit and a communication unit for remotely operating the rotary laser device; and an external device which is a server having a control unit; the rotary laser device, the terminal, and the external device are capable of communicating with each other; the rotary laser device includes a control unit, an output unit capable of outputting information, a light projecting unit housed in a housing, and a rotating unit rotatably connected to the housing and the light projecting unit around a rotation axis, an upper housing having a space capable of accommodating a part of the rotating part attached to an upper part of the housing; the light projecting unit has a light emitting element that emits the laser light coaxially with the rotation axis, 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 rotary laser device; the first acceleration sensor is provided at a position closer to the support end than the center of gravity of the rotary laser device on the bottom surface side located below the housing, the second acceleration sensor is provided above the first acceleration sensor and on a sidewall of the housing; the third acceleration sensor is provided at the center of gravity of the rotary laser device, which is lower than the light-emitting element of the light-projecting unit and higher than the first acceleration sensor, the fourth acceleration sensor is provided in the upper housing at a free end position opposite the support end position, Furthermore, the external device or the storage unit a correspondence table in which reference information, which is a judgment criterion including a threshold value and a pattern of vibration or displacement of the rotary laser device set based on the history information, a detection target state, which is a physical external factor that affects the accuracy of the rotary laser device and corresponds to the reference information and can be classified based on the acceleration, and an operation content, which includes one or both of an abnormal operation and a state transition with respect to the detection state as an output control, are associated with each other; a step in which a control unit of the external device or the rotary laser device determines whether or not the acceleration of a part 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 rotary laser device to output information for the operation content corresponding to the determined state to be detected, A method for controlling a rotating laser system.

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