Power tool system, power tool, power tool control method, and program

Abstract

To improve work efficiency when work is performed on a work position of a work site using an electric tool.SOLUTION: An electric tool system 1 includes a work position display device 3, an electric tool 2, a tool position detection part 36, and a tool position determination part 384. The work position display device 3 projects visible light 8 having convergence property at the work site, and thereby instructs a work position 7. The electric tool 2 executes work on the work position 7 instructed by the visible light 8. The tool position detection part 36 detects a relative position of the electric tool 2 to the work position 7. The tool position determination part 384 determines whether or not the electric tool 2 is set at the work position 7 on the basis of the detection result of the tool position detection part 36 before the electric tool 2 executes work on the work position 7.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present disclosure relates to a power tool system, a power tool, a power tool control method, and a program. More specifically, the present disclosure relates to a power tool system that uses a power tool to perform a task at a task position indicated by visible light from a task position display device, a power tool constituting the power tool system, a power tool control method, and a program. [Background technology]

[0002] The electric power tool described in Patent Document 1 includes a drive unit, an operation unit, a detection unit, and a control unit. The drive unit drives the tool. The operation unit accepts an operation for operating the drive unit. The detection unit detects whether the electric power tool body is in a holding state in which it is held by a user. The control unit controls the operating state of the drive unit to an operating state that is set based on an input signal from the operation unit and a detection result from the detection unit. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2017-205824 A Summary of the Invention [Problem to be solved by the invention]

[0004] In the above-mentioned work using the power tool, the worker needs to visually determine the working position at the work site, which requires the worker to take time to determine the correct working position, resulting in poor efficiency of the work.

[0005] The object of the present disclosure is to provide a power tool system, a power tool, a power tool control method, and a program that can improve work efficiency when performing work at a work location at a work site using a power tool. [Means for solving the problem]

[0006] According to an aspect of the present disclosure, there is provided a power tool system including a work position display device, a power tool, a tool position detection unit, and a tool position determination unit. The work position display device indicates a work position by projecting a visible light having convergence at a work site. The power tool includes: receiving reflected waves of the visible light reflected at the work position; The tool position detector detects the work position by detecting the visible light. Based on the reception intensity of the reflected wave received by the power tool, A tool position determination unit determines whether the power tool is set at the work position based on a detection result of the tool position detection unit before the power tool performs the work at the work position. A power tool system according to an aspect of the present disclosure includes a work position display device, a power tool, a tool position detection unit, and a tool position determination unit. The work position display device indicates a work position by projecting a visible light having convergence at a work site. The power tool performs a work at the work position indicated by the visible light. The tool position detection unit detects a relative position of the power tool with respect to the work position. Before the power tool performs the work at the work position, the tool position determination unit determines whether the power tool is set at the work position based on a detection result of the tool position detection unit. The tool position detection unit is provided in the work position display device. The tool position detection unit transmits an electromagnetic wave having convergence toward the work position. The power tool receives a reflected wave of the electromagnetic wave reflected at the work position, and transmits a reception intensity signal related to the reception intensity of the received reflected wave to the work position display device. The tool position detection unit detects the relative position based on the reception intensity signal received by the work position display device. A power tool system according to one aspect of the present disclosure includes a work position display device, a power tool, a tool position detection unit, and a tool position determination unit. The work position display device indicates a work position by projecting a visible light having convergence at a work site. The power tool performs a work at the work position indicated by the visible light. The tool position detection unit detects a relative position of the power tool with respect to the work position. Before the power tool performs the work at the work position, the tool position determination unit determines whether the power tool is set at the work position based on a detection result of the tool position detection unit. The tool position detection unit is provided in the power tool. The work position display device transmits a convergent electromagnetic wave toward the work position. The tool position detection unit receives a reflected wave of the electromagnetic wave reflected at the work position, and detects the relative position using a reception intensity of the received electromagnetic wave. A power tool system according to one aspect of the present disclosure includes a work position display device, a power tool, a tool position detection unit, and a tool position determination unit. The work position display device indicates a work position by projecting convergent visible light at a work site. The power tool performs work at the work position indicated by the visible light. The tool position detection unit detects a relative position of the power tool with respect to the work position. Before the power tool performs the work at the work position, the tool position determination unit determines whether the power tool is set at the work position based on a detection result of the tool position detection unit. The tool position detection unit is provided in the power tool. The work position display device transmits a convergent electromagnetic wave to a certain range including the work position at the work site while changing the transmission direction, and transmits the electromagnetic wave with transmission direction information regarding the transmission direction at the time of transmission superimposed on the electromagnetic wave. The tool position detection unit detects the relative position using the reception strength of the received electromagnetic wave and the transmission direction information superimposed on the received electromagnetic wave. A power tool system according to one aspect of the present disclosure includes a work position display device, a power tool, a tool position detection unit, and a tool position determination unit. The work position display device indicates a work position by projecting convergent visible light at a work site. The power tool performs work at the work position indicated by the visible light. The tool position detection unit detects a relative position of the power tool with respect to the work position. Before the power tool performs the work at the work position, the tool position determination unit determines whether the power tool is set at the work position based on a detection result of the tool position detection unit. When the work is completed, the electric tool transmits an operation waveform of the electric tool during the work to the work position display device. The work position display device associates the received operation waveform with the work position and transmits the operation waveform to the external system directly or via a relay terminal.

[0007] According to one aspect of the present disclosure, there is provided an electric power tool that performs a task at a task position indicated by convergent visible light at a work site. The electric power tool includes a tool position detection unit and a tool position determination unit. The tool position detection unit is A work position display device transmits a convergent electromagnetic wave toward the work position, receives a reflected wave of the electromagnetic wave reflected at the work position, and uses the reception intensity of the received electromagnetic wave toThe tool position determination unit detects a relative position of the power tool with respect to the work position. Before the power tool performs the work at the work position, the tool position determination unit determines whether the power tool is set at the work position based on a detection result of the tool position detection unit. According to one aspect of the present disclosure, there is provided an electric power tool that performs a task at a work position indicated by convergent visible light at a work site. The electric power tool includes a tool position detection unit and a tool position determination unit. The tool position detection unit transmits convergent electromagnetic waves from a work position display device to a certain range including the work position at the work site while changing the transmission direction, and transmits the electromagnetic waves with transmission direction information regarding the transmission direction at the time of transmission superimposed on the electromagnetic waves, receives the transmitted electromagnetic waves, and detects a relative position of the electric power tool with respect to the work position using a reception strength of the received electromagnetic waves and the transmission direction information superimposed on the received electromagnetic waves. Before the electric power tool performs the task at the work position, the tool position determination unit determines whether the electric power tool is set at the work position based on a detection result of the tool position detection unit. An electric power tool according to one aspect of the present disclosure is an electric power tool that performs a task at a work position indicated by convergent visible light at a work site. The electric power tool includes a tool position detection unit and a tool position determination unit. The tool position detection unit detects a relative position of the electric power tool with respect to the work position. Before the electric power tool performs the task at the work position, the tool position determination unit determines whether the electric power tool is set at the work position based on a detection result of the tool position detection unit. When the task is completed, the electric power tool transmits an operation waveform of the electric power tool during the task to a work position display device. The operation waveform received by the work position display device is associated with the work position and transmitted directly to an external system or transmitted to the external system via a relay terminal.

[0008] A power tool control method according to one embodiment of the present disclosure includes a first step, a second step, a third step, and a fourth step. The first step is to indicate a work position by projecting convergent visible light at a work site using a work position indicator. The second step is to perform a work using a power tool at the work position indicated by the visible light. The third step is to A convergent electromagnetic wave is transmitted from the work position display device toward the work position, and a tool position detection unit provided in the power tool receives a reflected wave of the electromagnetic wave reflected at the work position, and uses a reception intensity of the received electromagnetic wave to perform a calculation. The fourth step detects a relative position of the power tool with respect to the working position. The fourth step determines whether the power tool is set at the working position based on the detection result of the third step before the power tool performs the work at the working position. A power tool control method according to an embodiment of the present disclosure includes a first step, a second step, a third step, and a fourth step. In the first step, a work position is indicated by projecting a convergent visible light at a work site using a work position display device. In the second step, a work is performed at the work position indicated by the visible light using a power tool. In the third step, a convergent electromagnetic wave is transmitted from the work position display device to a certain range including the work position at the work site while changing the transmission direction, and transmission direction information regarding the transmission direction at the time of transmission is superimposed on the electromagnetic wave to transmit the electromagnetic wave. The transmitted electromagnetic wave is received by a tool position detection unit provided in the power tool, and a relative position of the power tool with respect to the work position is detected using a reception intensity of the received electromagnetic wave and the transmission direction information superimposed on the received electromagnetic wave. In the fourth step, before the power tool performs the work at the work position, it is determined whether the power tool is set at the work position based on the detection result of the third step. A power tool control method according to an embodiment of the present disclosure includes a first step, a second step, a third step, a fourth step, and a fifth step. In the first step, a work position is indicated by projecting a convergent visible light at a work site using a work position display device. In the second step, a work is performed using the power tool at the work position indicated by the visible light. In the third step, a relative position of the power tool with respect to the work position is detected. In the fourth step, before the power tool performs the work at the work position, it is determined whether or not the power tool is set at the work position based on the detection result of the third step. In the fifth step, when the work is completed, the power tool transmits an operation waveform of the power tool during the work to the work position display device, and the operation waveform received by the work position display device is associated with the work position and transmitted directly to an external system or transmitted to the external system via a relay terminal.

[0009] A program according to an embodiment of the present disclosure causes one or more processors to execute the power tool control method. Effect of the Invention

[0010] According to the present disclosure, it is possible to improve the work efficiency when performing work at a work location at a work site using a power tool. [Brief description of the drawings]

[0011] [Figure 1] FIG. 1 is a configuration diagram of a power tool system according to an embodiment of the present disclosure. [Diagram 2] FIG. 2 is a configuration diagram of a work position display device constituting the above electric power tool system. [Diagram 3] FIG. 3 is a configuration diagram of the power tool constituting the power tool system. [Figure 4] FIG. 4 is a flowchart illustrating the operation of the power tool system. [Diagram 5] FIG. 5 is a flowchart illustrating the operation of the power tool system. [Figure 6] FIG. 6 is a configuration diagram of the power tools constituting the power tool systems according to the first and third modifications. [Figure 7] FIG. 7 is a configuration diagram of a work position display device and a power tool constituting a power tool system according to the second modification. [Figure 8] FIG. 8 is a schematic diagram of a power tool system according to the fourth modification. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] Hereinafter, a power tool system according to an embodiment of the present disclosure will be described. The following embodiments are merely examples of various embodiments of the present disclosure. In addition, the following embodiments can be modified in various ways depending on the design, etc., as long as the object of the present disclosure can be achieved.

[0013] (1) Implementation form (1-1) Overview of power tool system An overview of a power tool system 1 according to an embodiment will be described with reference to FIG.

[0014] The power tool system 1 is a system for having a worker 6 use a power tool 2 to perform a predetermined task (e.g., screwing) at a predetermined work position 7 under predetermined work conditions d4 (e.g., the torque value at which the screw should be tightened) at a work site such as a construction site. In other words, the work positions 7 are precisely determined at the work site, and the work conditions d4 for the predetermined task differ depending on each work position 7. The work positions 7 are positions on the floor or wall surface of the work site.

[0015] More specifically, in the power tool system 1, a work position display device 3 is placed at a work site, and the work position display device 3 projects a convergent visible light 8 to indicate a work position 7. Furthermore, the work position display device 3 transmits work conditions d4 to the power tool 2, so that the operation settings of the power tool 2 are automatically set to operation settings that satisfy the work conditions d4. Then, when the worker 6 sets the power tool 2 at the work position 7 indicated by the visible light 8 and operates the power tool 2, the power tool 2 automatically operates with operation settings that satisfy the work conditions d4 to perform a predetermined task. In this way, the worker 6 can perform a predetermined task at the work position 7 indicated by the visible light 8 under the predetermined work conditions d4 by simply setting the power tool 2 at the work position 7 indicated by the visible light 8 and operating the power tool 2.

[0016] In addition, "setting the power tool 2 at the working position 7" means that the tip tool of the power tool 2 is in contact with or close to the working position 7, and the power tool 2 is used to prepare for performing a specified task at the working position 7.

[0017] The power tool 2 transmits work start information u1 and work end information u2 to the work position display device 3 when starting and ending a task, respectively, and upon receiving the work end information u2, the work position display device 3 indicates the next work position 7 with visible light 8 and transmits work conditions d4 to the power tool 2. The worker 6 uses the power tool 2 to perform a predetermined task at each work position 7 indicated by the visible light 8 in order, under the work conditions d4 set for that predetermined task.

[0018] (1-2) Power tool system configuration The configuration of the power tool system 1 will be described with reference to FIG.

[0019] The power tool system 1 includes a power tool 2, a work position display device 3, a construction management terminal 4 (relay terminal), and a construction management system 5 (external system). In this embodiment, the construction management system 5 is a component of the power tool system 1, but does not have to be included in the configuration of the power tool system 1.

[0020] The power tool 2, the construction management terminal 4, and the work position display device 3 are arranged at the work site. On the other hand, the construction management system 5 is installed in an external device (for example, a server for construction management) installed at a location other than the work site (a non-work site).

[0021] The power tool 2 and the work position display device 3 are capable of wireless communication with each other (e.g., short-range wireless communication such as wi-fi (registered trademark)). The work position display device 3 and the construction management terminal 4 are capable of wireless communication with each other (e.g., short-range wireless communication such as wi-fi (registered trademark)). The construction management system 5 and the construction management terminal 4 are capable of wireless communication with each other (e.g., long-range wireless communication such as via a mobile phone line).

[0022] The construction management system 5 is a system for managing the construction of a building, and is installed in the external device. The building also includes built-in structures to be built into the building. The construction management system 5 has a database 511 that stores management information for managing the construction of the building. The management information managed by the construction management system 5 constitutes BIM (Building Information Modeling). BIM is information for reproducing a three-dimensional model (BIM model) of a building that is the same as the real thing on a computer, and can include various information such as the price of each built-in structure in addition to shape data of the built-in structures (walls, columns, stairs, etc.) to be built into the building.

[0023] In this embodiment, the management information includes, for example, 3D data d1, position data d2, work type d3, work conditions d4, and work results d5.

[0024] The 3D data d1 is three-dimensional data relating to the structure of the building. The 3D data d1 includes three-dimensional data relating to the work location when constructing the building. The position data d2 is data relating to a work position 7 at the work site where various work is performed using an electric power tool 2. The work type d3 is information relating to the work content of the various work (e.g., screw tightening). The work conditions d4 are information relating to the work conditions d4 (e.g., tightening torque value) of a predetermined work (e.g., screw tightening) performed at the work position 7. The work result d5 includes information on the work position 7, information on the operation waveform during the work of the electric power tool 2 used in the work performed at the work position 7, work start information relating to the start of the work, and work end information relating to the end of the work.

[0025] The construction management system 5 transmits various information (3D data d1, position data d2, work type d3, and work conditions d4) other than the work result d5 among the above management information to the work position display device 3 via the construction management terminal 4. Then, the work position display device 3 indicates the work position 7 by projecting visible light 8 based on the received various information d1-d4, and transmits the work conditions d4 of the work to be performed at the indicated work position 7 to the power tool 2. In response to this, the power tool 2 transmits the work result d5 related to the above work performed using the power tool 2 to the work position display device 3. As described above, the work result d5 includes the operation waveform of the power tool 2, work start information, and work end information. Then, the work position display device 3 transmits the received work result d5 to the construction management system 5 via the construction management terminal 4. In this manner, the construction management system 5 acquires and manages the work result d5.

[0026] The construction management system 5 classifies work at all work locations related to the building into either locations where work has not been performed or locations where work has been completed, based on the managed work results d5. The "locations where work has not been performed" are locations (work locations) where work has not been performed, and the "locations where work has been completed" are locations (work locations) where work has been completed. In this way, the construction management system 5 manages the progress of construction on the building.

[0027] The construction management terminal 4 is a portable communication terminal, and is carried by, for example, a worker 6. The construction management terminal 4 receives the above-mentioned various data (3D data d1, position data d2, task type, and work conditions d4) transmitted from the construction management system 5 at any time or all at once, and transmits various information (3D data d1, position data d2, task type d3, and work conditions d4) equivalent (same content) to the received various information to the work position display device 3. The construction management terminal 4 receives work results d5 from the work position display device 3, and transmits the received work results d5 to the construction management system 5 at any time or all at once.

[0028] The work position display device 3 is placed at the work site. The work position display device 3 indicates a work position 7 by projecting visible light 8 at the work site based on the above-mentioned various information (3D data d1, position data d2, work type d3, work conditions d4) received from the construction management terminal 4. The work position display device 3 also transmits the work type d3 and work conditions d4 of the work to be performed at the work position 7 indicated by the visible light 8 to the power tool 2. The visible light 8 is a convergent electromagnetic wave in the visible range (e.g., a visible light laser).

[0029] Before indicating the work position 7 at the work site with visible light 8, the work position display device 3 identifies the placement position of the work position display device 3 at the work site based on a reference mark (e.g., a reference point or a reference line) drawn at the work site. Hereinafter, this placement position may also be simply referred to as the "device position." The 3D data d1 includes position data of the reference mark. The work position display device 3 identifies the work position 7 at the work site corresponding to the work position 7 on the 3D data d1 based on the identified device position, and indicates the identified work position 7 at the work site with visible light 8. In the following description, when simply referred to as the "above-mentioned device position," it means the placement position of the work position display device 3 at the work site.

[0030] The power tool 2 is used in a task performed at a work position 7 indicated by visible light 8. The power tool 2 is, for example, a portable power tool. The power tool 2 receives work conditions d4 from the work position display device 3, and sets the operation settings of the power tool 2 to operation settings that satisfy the received work conditions d4. As a result, when the worker 6 operates the power tool 2, the power tool 2 automatically operates with operation settings that satisfy the work conditions d4. As a result, the worker 6 can perform a task at the work position 7 so as to satisfy the work conditions d4, simply by setting the power tool 2 at the work position 7 indicated by visible light 8 and operating the power tool 2.

[0031] The power tool 2 transmits a work result d5 relating to the work at the work position 7 indicated by the visible light 8 to the work position display device 3. More specifically, the power tool 2 transmits work start information to the work position display device 3 at the start of the work as the work result d5, and transmits work end information to the work position display device 3 at the end of the work as the work result d5. The power tool 2 determines the start and end of the work from the operation waveform of the power tool 2. The power tool 2 also transmits the operation waveform of the power tool 2 during the work to the work position display device 3 as the work result d5.

[0032] (1-3) Configuration of work position display device 3 The configuration of the work position display device 3 will be described with reference to FIGS.

[0033] As shown in Fig. 1, the work position display device 3 is placed on the floor surface of the work site via a placement stand 10 (e.g., a tripod). More specifically, the placement stand 10 is placed at a predetermined position on the floor surface of the work site, and the work position display device 3 is fixed to the upper part of the placement stand 10. The work position display device 3 is fixed to the placement stand 10 so that the orientation of the work position display device 3 can be changed. In this embodiment, the work position display device 3 is fixed to the placement stand 10 so as to be rotatable around two rotation axes (e.g., a vertical axis A1 and a horizontal axis A2) that intersect (e.g., perpendicular) with respect to each other.

[0034] The work position display device 3 includes a first communication unit 31, a second communication unit 32, a light-projecting unit 33, a rotational drive unit 34, an equipment position detection unit 35, a tool position detection unit 36, a memory unit 37, and a control unit 38 (see FIG. 2).

[0035] The first communication unit 31 performs wireless communication with the construction management terminal 4. The second communication unit 32 performs wireless communication with the power tool 2. The first communication unit 31 and the second communication unit 32 may have different communication methods or may have the same communication method. In this embodiment, the first communication unit 31 and the second communication unit 32 are configured separately, but when the communication method of the first communication unit 31 and the communication method of the second communication unit 32 are the same, the first communication unit 31 and the second communication unit 32 may be configured as a single communication unit.

[0036] The light projecting unit 33 projects visible light 8 onto a work position 7 in a work site, thereby indicating the work position 7 so that the work position 7 can be visually recognized by the worker 6. The light projecting unit 313 includes a light source and an optical system.

[0037] The rotation drive unit 34 is a drive unit for changing the orientation of the work position display device 3, and includes, for example, a motor, a drive mechanism, a drive circuit, etc. The rotation drive unit 34 drives the work position display device 3 to rotate around two rotation axes A1 and A2.

[0038] The device position detection unit 35 detects the arrangement position of the work position display device 3 at the work site based on the position of a reference mark (e.g., a reference point or a reference line segment) drawn at the work site. That is, the device position detection unit 35 detects the relative position of the work position display device 3 with respect to the reference mark at the work site. Hereinafter, the arrangement position of the work position display device 3 at the work site may be simply described as the "device position". The reference mark drawn at the work site is also specified on the 3D data. For this reason, as described above, the arrangement position of the work position display device 3 on the 3D data can be specified by detecting the device position based on the position of the reference mark drawn at the work site. Note that, when multiple reference marks are drawn at the work site, the device position detection unit 35 detects the device position using a predetermined reference mark among the multiple reference marks. In the following description, when the term "reference mark" is simply described, it means the reference mark drawn at the work site.

[0039] More specifically, the device position detection unit 35 measures the relative distance between the work position display device 3 and the reference mark, and the direction angle that defines the direction from the work position display device 3 to the reference mark, and detects the device position based on the measurement results. For this purpose, the device position detection unit 35 includes a distance measurement unit 351 and an angle measurement unit 352.

[0040] The distance measuring unit 351 measures the relative distance between the reference mark and the work position display device 3. The distance measuring unit 351 includes a light emitting unit, a light receiving unit, and a distance measuring unit. The light emitting unit projects a visible light laser toward the measurement target (reference mark). The light receiving unit receives the reflected light of the visible light laser reflected by the measurement target. The distance measuring unit measures the relative distance based on the light receiving unit's received light intensity. The visible light laser is an example of visible light having convergence. Since the visible light laser is projected from the distance measuring unit 351 to the reference mark, the measurement target of the distance measuring unit 351 can be visually confirmed and the relative distance can be accurately measured. The light emitting unit of the distance measuring unit 351 may also be used as a light source for the light projecting unit 33. That is, the relative distance may be measured using visible light 8 indicating the work position 7.

[0041] The angle measuring unit 352 measures an azimuth angle that defines the direction from the work position display device 3 toward the reference mark (i.e., the measurement target of the distance measuring unit 351). More specifically, the angle measuring unit 352 measures the direction angle by measuring the drive amount of the rotation drive unit 34 when the worker 6 manually points the distance measuring unit 351 toward the reference mark. Note that the "drive amount of the rotation drive unit 34" refers to the amount of rotation around each of the two rotation axes A1 and A2 of the rotation drive unit 34. In this embodiment, a visible light laser is projected from the distance measuring unit 351 to the measurement target, so that the measurement target of the angle measuring unit 352 can be visually confirmed by this visible light laser, and the direction angle can be accurately measured.

[0042] In this embodiment, when the device position detection unit 35 measures the relative distance and the direction angle, the worker 6 manually rotates the work position display device 3 around the two rotation axes A1 and A2 in advance so that the visible light laser from the distance measurement unit 351 is projected onto the reference mark. The distance measurement unit 351 measures the relative distance with respect to this rotation. The angle measurement unit 352 measures the direction angle by measuring the amount of drive of the rotation drive unit 34 due to the rotation.

[0043] In this embodiment, the reference markers are, for example, two reference line segments. The two reference line segments do not intersect with each other, but the extensions of the two reference line segments are perpendicular to each other. In this case, the device position detection unit 35 measures the position of the intersection (position at the work site) of the extensions of the two reference line segments, and detects the device position based on the position of the intersection. Specifically, the device position detection unit 35 measures the positions (position at the work site) of three measurement points arranged on the two reference line segments by the distance measurement unit 351. The three measurement points are measurement points appropriately selected by the worker 6. Two of the three measurement points are arranged on one of the two reference lines, and the remaining one is arranged on the other of the two reference lines. Then, the device position detection unit 35 determines the position of the intersection (position at the work site) from the three measured measurement points by calculation using geometric knowledge, and detects the device position from the determined position of the intersection.

[0044] The tool position detection unit 36 ​​detects the relative position of the power tool 2 with respect to a work position 7 at the work site (a work position indicated by the visible light 8). In this embodiment, the power tool 2 receives the reflected light of the visible light 8 projected from the light-projecting unit 33 at the work position 7, and transmits a reception intensity signal t1 indicating the reception intensity at the time of reception to the second communication unit 32 of the work position display device 3. The tool position detection unit 36 ​​detects the relative position of the power tool 2 with respect to the work position 7 based on the reception intensity signal t1 received by the second communication unit 32. That is, the signal intensity of the reflected light of the visible light 8 at the work position 7 decreases as the tool moves away from the work position 7. Using this characteristic, the tool position detection unit 36 ​​detects the above-mentioned relative position. That is, since the reflected light of the visible light 8 at the working position 7 reaches only within a certain range of the working position 7 (for example, in the vicinity of the working position 7), while the power tool 2 receives reflected light with a certain level of signal strength (above a predetermined value), the power tool 2 is positioned within the certain range of the working position 7 (for example, in the vicinity of the working position 7) (i.e., the relative position of the power tool 2 with respect to the working position 7 is almost the same as the working position 7, in other words, the power tool 2 is set at the working position 7). Therefore, while the reception intensity signal t1 received by the tool position detection unit 36 ​​indicates a reception intensity above a predetermined value, it can be seen that the power tool 2 is correctly set at the working position 7.

[0045] The storage unit 37 is an electrically rewritable non-volatile storage unit such as a semiconductor memory. The storage unit 37 stores various information (e.g., 3D data d1, position data d2, work type d3, work conditions d4) received from the construction management terminal 4. The storage unit 37 also stores various information (e.g., work result d5) received from the power tool 2. The storage unit 37 also stores control programs and the like required for various operations of the work position display device 3.

[0046] The control unit 38 controls each processing unit other than the control unit 38 of the work position display device 3 (the first communication unit 31, the second communication unit 32, the light-projecting unit 33, the rotation drive unit 34, the equipment position detection unit 35, the tool position detection unit 36, and the memory unit 37).

[0047] The control unit 38 includes a processing unit 381 , a device position identifying unit 382 , a light projection direction control unit 383 , a tool position determining unit 384 , a tool control unit 385 , and a work completion determining unit 386 .

[0048] The processing unit 381 stores various types of information (e.g., 3D data d1, position data d2, work type d3, and work conditions d4) received by the first communication unit 31 from the construction management terminal 4 in the memory unit 37. The processing unit 381 also stores various types of information (e.g., work result d5) received by the second communication unit 32 from the power tool 2. The processing unit 381 also transmits the various types of information (e.g., work result d5) received by the second communication unit 32 from the power tool 2 from the first communication unit 31 to the construction management terminal 4.

[0049] The device position identification unit 382 identifies the placement position of the work position display device 3 on the 3D data d1 based on the detection result of the device position detection unit 35 (i.e., the relative position (device position) of the work position display device 3 with respect to the reference mark at the work site). More specifically, the reference mark drawn at the work site is also defined in the 3D data d1. Therefore, by identifying the reference mark included in the detection result of the device position detection unit 35 and the reference mark included in the 3D data d1, the placement position of the work position display device 3 on the 3D data d1 is identified from the detection result of the device position detection unit 35.

[0050] The light projection direction control unit 383 controls the direction of the light projector 33 and the light projection of the light projector 33 .

[0051] More specifically, the light-projection direction control unit 383 controls the rotation drive unit 34 so that the light-projecting unit 33 of the work position display device 3 faces the work position 7 at the work site, based on the various information (3D data d1 and position data d2) received from the construction management terminal 4 and the identification result of the device position identifying unit 382. As a result, visible light 8 from the light-projecting unit 33 is projected onto the work position 7, and the work position 7 is indicated by the visible light 8.

[0052] More specifically, the light projection direction control unit 383 determines the relative position of the work position 7 with respect to the arrangement position of the work position display device 3 based on various information (i.e., the 3D data d1 and the position data d2) received from the construction management terminal 4 and the identification result of the device position identification unit 382 (i.e., the arrangement position of the work position display device 3 on the 3D data d1). Then, the light projection direction control unit 383 determines the azimuth angle of the direction from the work position display device 3 to the work position 7 based on the determined relative position. Then, the light projection direction control unit 383 controls the rotation drive unit 34 based on the determined directional angle, thereby directing the light projection unit 33 of the work position display device 3 to the work position 7 at the work site. Then, the light projection direction control unit 383 causes the light projection unit 33 to project visible light 8, thereby indicating the work position 7 by the visible light 8.

[0053] Before the worker uses the power tool 2 to perform a task at the work position 7 indicated by the visible light 8, the tool position determination unit 384 determines, based on the detection result of the tool position detection unit 36, whether the power tool 2 is set at the work position 7 indicated by the visible light 8. More specifically, based on the detection result of the tool position detection unit 36, the tool position determination unit 384 determines whether the power tool 2 is set at the work position 7 depending on whether the power tool 2 is placed within a certain range (for example, in the vicinity of the work position 7) centered on the work position 7. That is, when the power tool 2 is placed within the certain range, the tool position determination unit 384 determines that the power tool 2 is set at the work position 7. When the power tool 2 is not placed within the certain range, the tool position determination unit 384 determines that the power tool 2 is not set at the work position 7. That is, the tool position determination unit 384 determines that the power tool 2 is set at the work position 7 only while the tool position detection unit 36 ​​outputs a detection result indicating that the power tool 2 is placed within the certain range. This makes it possible to accurately manage whether the power tool 2 is correctly set at the work position 7 when the power tool 2 performs a predetermined work at the work position 7.

[0054] The tool control unit 385 controls the power tool 2 by transmitting a control signal to the power tool 2 via the second communication unit 32 in accordance with the determination result of the tool position determination unit 384. More specifically, when the tool position determination unit 384 determines that the power tool 2 is set at the work position 7, the tool control unit 385 transmits an operation permission signal s1 (control signal) from the second communication unit 32 to the power tool 2. This permits the operator 6 to operate (e.g., activate) the power tool 2. This enables the operator 6 to use the power tool 2 to perform work at the work position 7 indicated by the visible light 8.

[0055] Furthermore, when the tool position determination unit 384 determines that the power tool 2 is not set at the work position 7, the tool control unit 385 stops the power tool 2 by transmitting an operation refusal signal s2 (control signal) from the second communication unit 32 to the power tool 2. This prohibits the worker 6 from performing work at the work position 7 indicated by the visible light 8 using the power tool 2. When the tool position determination unit 384 determines that the power tool 2 is not set at the work position 7, the tool control unit 385 causes a notification unit 26 (e.g., a sound output unit) of the power tool 2, which will be described later, to notify the worker 6 of the determination result of the tool position determination unit 384 (that the power tool 2 is not set at the work position 7) to those around the power tool 2. This notifies the worker 6 that the power tool 2 is not set at the work position 7, and prompts the worker 6 to set the power tool 2 at the work position 7.

[0056] The tool control unit 385 identifies the work conditions d4 of the work to be performed at the work position 7 indicated by the visible light 8, based on the work conditions d4 received from the construction management terminal 4, and transmits the identified work conditions d4 from the second communication unit 32 to the power tool 2. As a result, the operation settings of the power tool 2 are automatically set to operation settings that satisfy the work conditions d4. As a result, when the worker 6 operates the power tool 2, the power tool 2 automatically operates with operation settings that satisfy the work conditions d4.

[0057] When there are a plurality of work positions 7 at which the worker 6 is to work, the work completion determination unit 386 determines whether or not the work has been performed using the power tool 2 at all of the plurality of work positions 7. More specifically, each time the power tool 2 finishes a work at a work position 7, the work completion determination unit 386 receives, from the power tool 2 via the second communication unit 32, work completion information u2 relating to the work and operation waveform information of the power tool 2 during the work, respectively. Upon receiving the work completion information u2 from the power tool 2, the work completion determination unit 386 causes the light projection direction control unit 383, the tool position determination unit 384, and the tool control unit 385 to perform the same process as described above for the next work position 7. Then, the work completion determination unit 386 causes the worker 6 to perform the work at the next work position 7 using the power tool 2.

[0058] When the work completion determination unit 386 receives the work end information u2 from the power tool 2 the same number of times as the number of the plurality of work positions 7, it determines that work has been performed using the power tool 2 at all of the plurality of work positions 7. Then, the work completion determination unit 386 transmits the determination result (that a predetermined work has been performed using the power tool 2 at all of the plurality of work positions 7) and operation waveform information of the power tool 2 at each work position as a work result d5 to the construction management terminal 4 via the first communication unit 31. The operation waveform information is information that indicates the operation waveform of the power tool 2 during work.

[0059] In this embodiment, each component of the work position display device 3 (first communication unit 31, second communication unit 32, device position detection unit 35, tool position detection unit 36, control unit 38) is mainly composed of a computer having a CPU (Central Processing Unit) and memory, and the functions of each component are realized by executing a program stored in the memory with the CPU. The program may be recorded in the computer's memory in advance, may be provided by recording it on a recording medium such as a memory card, or may be provided through an electric communication line such as the Internet.

[0060] (1-4) Configuration of power tool 2 The configuration of the power tool 2 will be described with reference to FIG.

[0061] The power tool 2 includes a communication unit 21, an operation unit 22, a drive unit 23, a tool tip 23a, a state detection unit 24, a light receiving unit 25, a memory unit 27, a notification unit 26, and a control unit .

[0062] The communication unit 21 performs wireless communication (for example, Wi-Fi (registered trademark)) with a second communication unit 32 of the work position display device 3.

[0063] The operation unit 22 is a part for inputting operations of the operator 6 on the power tool 2, and for example switches between operating and stopping the power tool 2. The operation unit 22 is, for example, a trigger-type operation unit 22, and the power tool 2 is operated by pulling in the trigger, and the power tool 2 is stopped by returning the trigger to its original position.

[0064] The driving unit 23 is a part that detachably fixes the tip tool 23a and drives the tip tool 23a. The driving unit 23 includes a bit that detachably fixes the tip tool 23a, a motor and a driving mechanism for driving the tip tool 23a, etc. The tip tool 23a is, for example, a drill, a driver, an impact driver, etc.

[0065] The state detection unit 24 is a sensor that detects the operating state of the power tool 2. The operating state of the power tool 2 includes starting and stopping of the power tool 2 and the state of the output of the power tool 2 (such as the amount of torque applied to the tool tip 23a). The state detection unit 24 detects the operating state of the power tool 2 by detecting the amount of operation of the operation unit 22 and the operating waveform of the motor in the drive unit 23. The operating waveform of the motor is, for example, the waveform of the voltage applied to the motor or the waveform of the output voltage of the motor. The operating waveform of the motor is the operating waveform of the power tool 2.

[0066] The light receiving unit 25 is a sensor that receives reflected light of visible light 8 that is projected by the work position display device 3 onto the work position 7 and reflected by the work position 7. The light receiving unit 25 includes a light receiving element and the like.

[0067] The notification unit 26 is a device that notifies various types of information to people (e.g., the worker 6) around the power tool 2, and is, for example, a sound output device or a display device. The sound output device is a device that outputs sound or voice. The display device is a display device that can display images, and is, for example, a liquid crystal display device. The notification unit 26 notifies a user when the power tool 2 is not set at the work position 7 indicated by the visible light 8. The notification unit 26 also notifies the user of the type of work to be performed at the work position 7 indicated by the visible light 8.

[0068] The storage unit 27 is an electrically rewritable non-volatile storage unit 27 such as a semiconductor memory. The storage unit 27 stores various information (e.g., work type d3 and work conditions d4) received from the work position display device 3. The storage unit 27 also stores information (work state information) relating to the work state of the power tool 2 detected by the state detection unit 24. The storage unit 27 also stores control programs and the like required for various operations of the power tool 2.

[0069] The control unit 28 controls each processing unit 281 (the communication unit 21, the state detection unit 24, the light receiving unit 25, the storage unit 27, and the notification unit 26) other than the control unit 28 of the power tool 2. The control unit 28 includes the processing unit 281, an operation setting unit 282, a permission / rejection determination unit 283, a drive control unit 284, a work result processing unit 285, and a notification processing unit 286.

[0070] The processing unit 281 stores various information (for example, the work type d3 and the work conditions d4) received by the communication unit 21 from the work position display device 3 in the memory unit 27. The processing unit 281 stores the detection result of the state detection unit 24.

[0071] The processing unit 281 also transmits the light reception result of the light receiving unit 25 as a reception intensity signal t1 from the communication unit 21 to the work position display device 3. The reception result (reception intensity) of the light receiving unit 25 has a reception intensity equal to or greater than a predetermined value only when the power tool 2 is set at the work position 7. Therefore, the processing unit 281 transmits the reception intensity signal t1 having a reception intensity equal to or greater than a predetermined value from the communication unit 21 to the work position display device 3 only when the power tool 2 is set at the work position 7. On the other hand, when the power tool 2 is not set at the work position 7, the processing unit 281 transmits the reception intensity signal t1 having a reception intensity less than the predetermined value from the communication unit 21 to the work position display device 3. As a result, when the tool position detection unit 36 ​​of the work position display device 3 receives the reception intensity signal t1 having a reception intensity equal to or greater than a predetermined value from the power tool 2, it is ensured that the power tool 2 is set at the work position 7 during the reception. As a result, when the power tool 2 performs a predetermined task at the work position 7, it is possible to accurately manage whether the power tool 2 is correctly set at the work position 7.

[0072] The operation setting unit 282 sets the operation setting of the power tool 2 to an operation setting that satisfies the work condition d4 received by the communication unit 21 from the work position display device 3. For example, when the work condition is a condition of "torque value=value A", the operation setting unit 282 sets the operation setting of the power tool 2 to torque value=value A.

[0073] The permission / rejection determination unit 283 determines whether to permit or reject the operation of the power tool 2 based on the operation permission signal s1 and the operation refusal signal s2 received by the communication unit 21 from the work position display device 3. That is, when the communication unit 21 receives the operation permission signal s1, the permission / rejection determination unit 283 permits the operation of the power tool 2, and on the other hand, when the communication unit 21 receives the operation refusal signal s2, the permission / rejection determination unit 283 rejects the operation of the power tool 2.

[0074] The drive control unit 284 controls the drive of the drive unit 23 based on the input operation to the operation unit 22 , the setting result of the operation setting unit 282 , and the determination result of the operation permission / refusal determination unit 283 .

[0075] More specifically, when controlling the drive unit 23 in response to an input operation to the operation unit 22, the drive control unit 284 controls the drive unit 23 based on the determination result of the operation permission / refusal determination unit. That is, when controlling the drive unit 23 in response to an input operation to the operation unit 22, if the operation permission / refusal determination unit 283 determines to permit the operation of the power tool 2, the drive control unit 284 controls the drive unit 23 in response to the input operation to the operation unit 22. On the other hand, when controlling the drive unit 23 in response to an input operation to the operation unit 22, if the operation permission / refusal determination unit determines to refuse the operation of the power tool 2, the drive control unit 284 stops the drive unit 23 regardless of the input operation to the operation unit 22.

[0076] Furthermore, when controlling the drive unit 23 in response to an input operation to the operation unit 22, the drive control unit 284 controls the drive unit 23 based on the operation setting set by the operation setting unit 282 (i.e., the operation setting that satisfies the received work condition d4) regardless of the amount of operation of the operation unit 22. For example, the drive control unit 284 assumes a case where the set operation set by the operation setting unit 282 is a content that sets the torque value of the tip tool 23a to a certain value (value A). In this case, the drive control unit 284 controls the drive unit 23 so that the output of the tip tool 23a2 becomes value A regardless of the amount of operation of the operation unit 22. As a result, when the worker 6 operates the power tool 2 via the operation unit 22, the worker 6 can operate the power tool 2 according to the operation setting set by the operation setting unit 282 only when the operation permission / refusal determination unit 283 determines that the operation of the power tool 2 is permitted.

[0077] The work result processing unit 285 transmits the detection result of the state detection unit 24 as the work result d5 from the communication unit 21 to the work position display device 3. More specifically, when the state detection unit 24 detects the start of work by the power tool 2, the work result processing unit 285 transmits the detection result (work start information) as the work result d5 from the communication unit 21 to the work position display device 3. Also, when the state detection unit 24 detects the end of work by the power tool 2, the work result processing unit 285 transmits the detection result (work end information) as the work result d5 from the communication unit 21 to the work position display device 3. Also, when the state detection unit 24 detects the end of work by the power tool 2, the work result processing unit 285 transmits the operation waveform of the power tool 2 during the work (i.e., the operation waveform of the motor) from the communication unit 21 to the work position display device 3 as the work result d5.

[0078] When the communication unit 21 receives the operation refusal signal s2 from the work position display device 3, the notification processing unit 286 causes the notification unit 26 to notify those around the power tool 2 (including the worker 6) of this (that the power tool 2 is not set at the work position 7 indicated by the visible light 8). This prompts the worker 6 to set the power tool 2 at the work position 7 indicated by the visible light 8. When this setting is detected by the tool position detection unit 36 ​​of the work position display device 3, the power tool 2 receives the operation permission signal s1 from the work position display device 3 and becomes operable.

[0079] Furthermore, when the notification processing unit 286 receives the task type d3 from the task position display device 3, the task type (task content) of the task at the task position 7 indicated by the task position display device 3 using visible light 8 is notified to those around the power tool 2 (including the worker 6) from the notification unit 26. As a result, the worker 6 replaces the tip tool 23a attached to the power tool 2 with the tip tool 23a corresponding to the task type d3.

[0080] In this embodiment, each component of the power tool 2 (communication unit 21, state detection unit 24, notification unit 26, control unit 28) is mainly composed of a computer having, for example, a CPU (Central Processing Unit) and a memory, and the functions of each component are realized by executing a program stored in the memory by the CPU. The program may be recorded in the computer's memory in advance, may be provided by recording it on a recording medium such as a memory card, or may be provided via an electric communication line such as the Internet.

[0081] (1-5) Operation Description The operation of the power tool system 1 will be described with reference to FIGS.

[0082] The construction management terminal 4 is carried by a worker 6, and the work position display device 3 is disposed at the work site.

[0083] The construction management system 5 transmits various data d1-d4 to the construction management terminal 4 (step S1). When the construction management terminal 4 receives the various data d1-d4 from the construction management system 5, it transmits the received various data d1-d4 to the work position display device 3 (step S2). When the work position display device 3 receives the various data d1-d4 from the construction management terminal 4, it stores the received various data d1-d4 (step S3).

[0084] The construction management terminal 4 also notifies the worker 6 of a reference mark to be used by the worker 6 in the process of step S5 described later (step S4). For example, the construction management terminal 4 notifies the worker 6 of the reference mark by displaying a 3D image of the work site including the reference mark on the display unit of the construction management terminal 4.

[0085] The worker 6 identifies a reference mark at the work site that corresponds to the reference mark notified from the construction management terminal 4 in step S3. Then, the worker 6 manually moves the work position display device 3 and performs an operation to identify the arrangement position of the work position display device 3 (i.e., the relative position of the work position display device 3 with respect to the reference mark) using the identified reference mark (step S5). Through this operation, the work position display device 3 identifies the arrangement position of the work position display device 3 on the 3D data d1 (step S6).

[0086] In steps S5 and S6, more specifically, the worker 6 manually changes the orientation of the work position display device 3 so that the distance measuring unit 351 of the work position display device 3 faces the reference mark. Then, in this changed state, the device position detection unit 35 of the work position display device 3 measures the relative distance between the work position display device 3 and the reference mark and the direction angle that defines the direction from the work position display device 3 to the reference mark. Then, the device position identification unit 382 of the work position display device 3 determines the relative position between the work position display device 3 and the reference mark based on the result of the above measurement, and identifies the position of the work position display device 3 on the 3D data d1 using the determined relative position.

[0087] Then, the work position display device 3 transmits to the power tool 2 the work type d3 and work conditions d4 of the work to be performed at the work position 7 instructed in step S10 described later (step S7). When the power tool 2 receives the work conditions d4 from the work position display device 3, it changes the operation settings of the power tool 2 to operation settings that satisfy the received work conditions d4 (step S8). When the power tool 2 receives the work type d3 from the work position display device 3, it notifies the worker 6 of the received work type d3 from the notification unit 26 of the power tool 2 (step S9). As a result, the worker 6 changes the tip tool 23a of the power tool 2 to the tip tool corresponding to the notified work type d3.

[0088] Then, based on the 3D data d1 and position data d2 received in step S3 and the identification result of step S6, the light projection direction control unit 383 of the work position display device 3 controls the rotation drive unit 34 so that the light projector 33 faces the work position 7 at the work site. Then, the light projection direction control unit 383 of the work position display device 3 causes the light projector 33 to emit visible light 8, and indicates the work position 7 at the work site by the visible light 8 (step S10). The worker 6 uses the power tool 2 to perform work at the work position 7 thus indicated by the visible light 8.

[0089] The tool position detection unit 36 ​​of the work position display device 3 detects the relative position of the power tool 2 with respect to the work position 7 (step S11). The tool position determination unit 384 of the work position display device 3 determines whether or not the power tool 2 is set at the work position 7 indicated by the visible light 8 based on the detection result of the tool position detection unit 36 ​​(step S12). If the result of this determination is that the power tool 2 is not set at the work position (step S12: No), the tool position determination unit 384 of the work position display device 3 transmits an operation refusal signal s2 to the power tool 2 (step S13). Then, when the power tool 2 receives the operation refusal signal s2, the permission / refusal determination unit 283 of the power tool 2 determines to refuse operation of the power tool 2 (step S14).

[0090] In response to the determination result of step S14, the drive control unit 284 of the power tool 2 stops the power tool 2 (step S14B). This prevents the power tool 2 from operating in response to the operation of the power tool 2 by the operator 6. In addition, in response to the determination result of step S14, the notification unit 26 of the power tool 2 notifies the operator that the power tool 2 is not set at the work position 7 (step S14C). This allows the operator 6 to set the power tool 2 at the work position 7.

[0091] On the other hand, if the result of the determination in step S12 is that the power tool 2 is set in the work position (step S12: Yes), the tool position determination unit 384 of the work position display device 3 transmits an operation permission signal s1 to the power tool 2 (step S15). Then, when the power tool 2 receives the operation permission signal s1, the permission / rejection determination unit 283 of the power tool 2 determines whether to permit operation of the power tool 2 (step S16). In response to this determination, the drive control unit 284 of the power tool 2 enables the power tool 2 to be operated. Specifically, the drive control unit 284 enables the power tool 2.

[0092] Then, the worker 6 uses the power tool 2 to start work at the work position 7 indicated by the visible light 8 (step S17). The state detection unit 24 of the power tool 2 detects the start of the work by the worker 6, and the work result processing unit 285 of the power tool 2 transmits the detection result (work start information) of the state detection unit 24 as a work result d5 to the work position display device 3 (step S18). The work position display device 3 then receives the work start information (work result d5) from the power tool 2 (step S19), and stores the received work start information (work result d5) in association with the position data d2 corresponding to the work position 7 in the storage unit 37 (step S20).

[0093] When the worker 6 finishes the work (step S21), the state detection unit 24 of the power tool 2 detects the end of the work. The state detection unit 24 also detects the operation waveform of the power tool 2 during the work. The work result processing unit 285 of the power tool 2 transmits the detection result (work end information and operation waveform information) of the state detection unit 24 to the work position display device 3 as the work result d5 (step S22). The operation waveform information is information related to the operation waveform of the power tool 2 during the work detected by the state detection unit 24. The work position display device 3 then receives the work end information and operation waveform information from the power tool 2 (step S23). The work position display device 3 then stores the received work end information and operation waveform information (work result d5) in the storage unit 37 in association with the position data d2 corresponding to the work position 7 (step S20).

[0094] Then, the work completion determination unit 386 of the work position display device 3 determines whether or not work has been performed using the power tool 2 at all of the multiple work positions 7 where the worker 6 is to work (step S24). If the work completion determination unit 386 determines that work has not been performed using the power tool 2 at all of the multiple work positions 7 (step S24: No), the process proceeds to step S7 and is repeated for the next work position 7. On the other hand, if the work completion determination unit 386 determines that a predetermined work has been performed using the power tool 2 at all of the multiple work positions 7 (step S24: Yes), the work results d5 for each of the multiple work positions 7 are transmitted to the construction management terminal 4 (step S25).

[0095] Then, when the construction management terminal 4 receives the work result d5 from the work position display device 3, it transmits the received work result d5 to the construction management system 5 (step S26). When the construction management system 5 receives the work result d5 from the construction management terminal 4, it stores the received work result d5 in association with the position data d2 corresponding to the work result d5 (step S27). Then, the processing of the power tool system 1 ends.

[0096] (1-6) Main Effects The power tool system 1 described above includes the work position display device 3, the power tool 2, the tool position detection unit 36, the tool position determination unit 384, and the tool control unit 385. The work position display device 3 indicates a work position 7 by projecting a visible light 8 having convergence at a work site. The power tool 2 performs work at the work position 7 indicated by the visible light 8. The tool position detection unit 36 ​​detects a relative position of the power tool 2 with respect to the work position 7. The tool position determination unit 384 determines whether or not the power tool 2 is set at the work position 7 based on the detection result of the tool position detection unit 36 ​​before the power tool 2 performs work at the work position 7. In the present embodiment, as an example, the tool position detection unit 36 ​​and the tool position determination unit 384 are provided in the work position display device 3.

[0097] According to this configuration, the work position display device 3 indicates a work position 7 at a work site by projecting visible light 8. Then, before the power tool 2 performs work at the work position 7, it is determined whether the power tool 2 is set at the work position 7 based on the detection result of the tool position detection unit 36. Therefore, the power tool 2 can be set at the correct work position 7 quickly, and thereby the power tool 2 can quickly perform work at the correct work position 7. As a result, the work position display device 3 can quickly indicate the next work position, and work efficiency can be improved when working at the work position 7 at the work site using the power tool 2.

[0098] (2) Power tool, power tool control method, and program Functions similar to those of the power tool system 1 according to the above embodiment may be embodied in a power tool 2, a power tool control method, a computer program (program), or a non-transitory recording medium having a computer program recorded thereon.

[0099] An electric power tool according to one embodiment (see FIG. 6 ) is an electric power tool 2 that performs work at a work position 7 indicated by convergent visible light at a work site. The electric power tool 2 includes a tool position detection unit 50 and a tool position determination unit 51. The tool position detection unit 50 detects the relative position of the electric power tool 2 with respect to the work position 7. The tool position determination unit 51 determines whether the electric power tool 2 is set at the work position 7 based on the detection result of the tool position detection unit 50.

[0100] A power tool control method according to one embodiment (see Figs. 4 and 5) includes a first step (step S10), a second step (step S17), a third step (step S11), and a fourth step (step S12). In the first step, a work position 7 is indicated by projecting visible light 8 (visible light) at a work site using a work position display device 3. In the second step, a work is performed using the power tool 2 at the work position 7 indicated by the visible light 8. In the third step, a relative position of the power tool 2 with respect to the work position 7 is detected. In the fourth step, before the power tool 2 performs a work at the work position 7, it is determined whether or not the power tool 2 is set at the work position 7 based on the detection result in the third step.

[0101] A program according to one aspect causes one or more processors to execute the power tool control method.

[0102] A non-transitory recording medium according to one embodiment temporarily records a program for causing one or more processors to execute the above-described power tool control method.

[0103] (3) Variations Modifications of the above embodiment will be described below. Note that the above embodiment may be implemented in combination with the following modifications.

[0104] (3-1) Variation 1 In the above embodiment, the tool position detection unit 36 ​​and the tool position determination unit 384 are provided in the work position display device 3, but in this modified example, as shown in Figure 6, the tool position detection unit 50 and the tool position determination unit 51 are provided in the power tool 2.

[0105] The work position display device 3 of this modification differs from the work position display device 3 of the above embodiment in that it does not include the tool position detection unit 36 ​​and the tool position determination unit 384, and also in that it does not include a tool control unit 385. The power tool 2 of this modification differs from the power tool 2 of the above embodiment in that it includes the tool position detection unit 50 and the tool position determination unit 51, and also in that it does not include the light receiving unit 25 and that the operation of the permission / rejection determination unit 283 is different. The operations of the tool position detection unit 50, the tool position determination unit 51, and the permission / rejection determination unit 283 in this modification will be described below.

[0106] The tool position detection unit 50 receives a reflected wave at the work position 7 of a convergent electromagnetic wave (e.g., visible light 8) transmitted from the work position display device 3 to the work position 7, and detects the relative position of the power tool 2 with respect to the work position 7 based on the reception intensity at the time of reception. In this modification, the visible light 8 projected from the light-projecting unit 33 of the work position display device 3 is also used as the electromagnetic wave used by the tool position detection unit 50 to detect the relative position.

[0107] The tool position determination unit 51 is provided in the control unit 28 of the power tool 2. Before the power tool 2 performs work at the work position 7 indicated by the visible light 8, the tool position determination unit 51 determines, based on the detection result of the tool position detection unit 50, whether the power tool 2 is set at the work position 7 indicated by the visible light 8.

[0108] The permission / rejection determination unit 283 of this modification determines whether to permit or reject the operation of the power tool 2 based on the determination result of the tool position determination unit 51, instead of using the operation permission signal s1 and the operation rejection signal s2. That is, the permission / rejection determination unit 283 permits the operation of the power tool 2 when the tool position determination unit 51 determines that the power tool 2 is set at the work position 7 indicated by the visible light 8. On the other hand, the permission / rejection determination unit 283 rejects the operation of the power tool 2 when the tool position determination unit 51 determines that the power tool 2 is not set at the work position 7 indicated by the visible light 8.

[0109] According to this modification, the power tool 2 can detect the relative position of the power tool 2 with respect to the work position 7 by using the reception strength of the reflected electromagnetic wave (e.g., visible light 8) that is transmitted from the work position display device 3 and reflected at the work position 7. In particular, the reception strength of the electromagnetic wave reflected at the work position 7 decreases rapidly with distance from the work position 7, and therefore the power tool 2 can be substantially received only in the vicinity of the work position 7. Therefore, depending on whether the power tool 2 can substantially receive the reflected electromagnetic wave reflected at the work position 7, it can be easily detected whether the power tool 2 is disposed in the vicinity of the work position 7 (i.e., whether the power tool 2 is set at the work position 7).

[0110] (3-2) Variation 2 In the above embodiment, the tool position detection unit 36 ​​of the work position display device 3 detects the relative position of the power tool 2 with respect to the work position 7 based on the reception intensity of the reflected wave of visible light 8 at the work position 7. In contrast, in this modification, as shown in Fig. 7, the tool position detection unit 36 ​​receives an electromagnetic wave 60 emitted from the power tool 2, and detects the relative position of the power tool 2 with respect to the work position 7 using the reception intensity and reception direction of the received electromagnetic wave 60.

[0111] The power tool 2 of this modification includes a transmitter 61 that transmits electromagnetic waves 60. The power tool 2 of this modification is configured by omitting the light receiving unit 25 from the power tool 2 of the above embodiment and adding the transmitter 61. In Fig. 7, the components of the power tool 2 other than the transmitter 61 are not shown.

[0112] The tool position detection unit 36 ​​of the work position display device 3 of this modified example includes a plurality of receiving units 62 and a processing unit 63. The plurality of receiving units 62 are arranged in a predetermined arrangement. In FIG. 7, only one receiving unit 62 is illustrated for convenience of drawing. The plurality of receiving units 62 receive electromagnetic waves 60 from the power tool 2. The processing unit 63 detects the receiving direction and receiving strength of the electromagnetic waves 60 received by the plurality of receiving units 62 from the distribution of the outputs (receiving strength) of the plurality of receiving units 62. The processing unit 63 also detects the relative position of the power tool 2 with respect to the work position display device 3 from the detected receiving direction and receiving strength. More specifically, the processing unit 63 detects the relative direction from the work position display device 3 to the power tool 2 from the detected receiving direction, and detects the relative distance of the power tool 2 with respect to the work position display device 3 from the detected receiving strength. Then, the processing unit 63 detects the relative position of the power tool 2 with respect to the work position 7 from this detection result (the relative position of the power tool 2 with respect to the work position display device 3), the identification result of the device position identification unit 382 (the placement position of the work position display device 3 on the 3D data d1), and the position data d2 (the position of the work position 7 on the 3D data d1).

[0113] According to this modification, the work position display device 3 can detect the relative position of the power tool 2 with respect to the work position 7 by using the electromagnetic wave 60 from the power tool 2.

[0114] (3-3) Variation 3 In the above embodiment, the tool position detection unit 36 ​​and the tool position determination unit 384 are provided in the work position display device 3, and the tool position detection unit 36 ​​detects the relative position of the power tool 2 with respect to the work position 7 based on the reception intensity of the reflected wave of visible light 8 at the work position 7. In contrast, in this modification, as shown in FIG. 6, the tool position detection unit 70 and the tool position determination unit 71 are provided in the power tool 2. The work position display device 3 transmits a convergent electromagnetic wave (e.g., visible light 8) while changing the transmission direction, and transmits the electromagnetic wave with transmission direction information superimposed thereon. The transmission direction information is information related to the transmission direction at the time of transmission of the electromagnetic wave. The tool position detection unit 70 detects the relative position of the power tool 2 with respect to the work position 7 using the reception intensity of the received electromagnetic wave and the transmission direction information superimposed on the received electromagnetic wave.

[0115] The work position display device 3 of this modified example differs from the work position display device 3 of the above embodiment (see FIG. 2) in that it does not include the tool position detection unit 36 ​​and the tool position determination unit 384, and also differs in that it does not further include a tool control unit 385. Moreover, the power tool 2 of this modified example differs from the power tool 2 of the above embodiment in that it includes the tool position detection unit 70 and the tool position determination unit 71, and also differs in that it does not include the light receiving unit 25 and that the operation of the permission / rejection determination unit 283 is different.

[0116] In the work position display device 3 of this modification, the light projection direction control unit 383 performs the following operation for detecting the relative position of the power tool 2 with respect to the work position 7 in addition to the operation of the light projection direction control unit 383 of the above embodiment. That is, before indicating the work position 7 by the visible light 8 from the light projection unit 33, the light projection direction control unit 383 controls the rotation drive unit 34 to emit the visible light 8 over a certain range (e.g., the entire work site) including the work position 7 at the work site while gradually changing the direction of the light projection unit 33 (i.e., the emission direction of the visible light 8) in the horizontal and vertical directions. In this way, by emitting the visible light 8 while gradually changing the emission direction of the visible light 8, the visible light 8 is projected while scanning a certain range including the work position 7 at the work site. In this way, the light projection direction control unit 383 can cause the power tool 2 to receive the visible light 8 even if the position of the power tool 2 at the work site is not specified. Furthermore, when transmitting visible light 8, the light projection direction control unit 383 transmits transmission direction information regarding the transmission direction of visible light 8 at the time of transmission superimposed on the visible light 8. The "transmission direction at the time of transmission" is determined based on the amount of rotation around the rotation axes A1, A2 of the rotation drive unit 34 at the time of transmission.

[0117] The work position display device 3 of this modification transmits the position data d2 and the identification result of the device position identification unit 382 from the second communication unit 32 to the power tool 2 together with the work conditions d4 and the work type d3.

[0118] In the power tool 2 of this modified example, when the tool position detection unit 70 receives the visible light 8 transmitted from the work position display device 3 while changing the transmission direction, the tool position detection unit 70 detects the relative position of the power tool 2 with respect to the work position 7, using the reception intensity of the received visible light 8 and the transmission direction information superimposed on the received visible light 8. More specifically, the tool position detection unit 70 obtains the relative position of the power tool 2 with respect to the work position display device 3, based on the reception intensity of the received visible light 8 and the transmission direction information superimposed on the received visible light 8. That is, the tool position detection unit 70 detects the relative direction from the work position display device 3 to the power tool 2, based on the received transmission direction information, and detects the relative distance of the power tool 2 with respect to the work position display device 3, based on the received reception intensity. Then, the tool position detection unit 70 detects the relative position of the power tool 2 with respect to the work position 7 from the calculated relative position, the position data d2 (the position of the work position 7 on the 3D data d1) received via the second communication unit 32, and the identification result of the device position identification unit 382 (the position of the work position display device 3 on the 3D data d1).

[0119] The tool position determining unit 71 and the permission / rejection determining unit 283 of the power tool 2 of this modification perform the same operations as the tool position determining unit 51 and the permission / rejection determining unit 283 of the first modification.

[0120] According to this modification, the electromagnetic wave (visible light 8) from the work position display device 3 can be used to detect the relative position of the power tool 2 with respect to the work position 7 in the power tool 2.

[0121] (3-4) Variation 4 In the above embodiment, the tool position detection unit 36 ​​(see FIG. 2) detects the relative position of the power tool 2 with respect to the work position 7 based on the reception intensity of the reflected wave of visible light 8. In contrast, in this modification, the tool position detection unit 81 (see FIG. 8) captures an image of the work position 7 indicated by visible light 8 and its surroundings (including the power tool 2), and detects the above-mentioned relative position based on the captured image.

[0122] In this modified example, the tool position detection unit 81 is provided in an image sensor device 80. The image sensor device 80 is a separate device other than the work position display device 3 and the power tool 2. More specifically, the image sensor device 80 is a separate device other than the work position display device 3, the construction management terminal 4, and the power tool 2. The image sensor device 80 is installed, for example, at a predetermined position at the work site (for example, a position from which the entire work site can be viewed). In this modified example, the image sensor device 80 is a component of the power tool system 1 of this modified example.

[0123] 8, the image sensor device 80 includes a tool position detection unit 81 and a communication unit 82. The tool position detection unit 81 includes an imaging unit 811 and an image processing unit 812.

[0124] The imaging unit 811 captures an image of the work position 7 indicated by the visible light 8 and its surroundings (including the power tool 2). In this modification, the imaging unit 811 captures a still image, but may capture a moving image. The image processing unit 812 recognizes the light spot of the visible light 8 (i.e., the work position 7) and the power tool 2 from the captured image of the imaging unit 811 by image processing. Then, the image processing unit 812 detects the relative position of the power tool 2 with respect to the work position 7 from the respective sizes of the recognized light spot and the power tool 2 and the relative arrangement therebetween. The communication unit 82 wirelessly communicates with the second communication unit 32 of the work position display device 3. The communication unit 82 transmits the detection result g1 of the tool position detection unit 81 (i.e., the processing result of the image processing unit 812) to the second communication unit 32 of the work position display device 3. Then, the tool position determination unit 384 of the work position display device 3 determines whether or not the power tool 2 is set at the work position 7 based on the detection result of the tool position detection unit 81 received by the second communication unit 32.

[0125] According to this modification, the relative position of the power tool 2 with respect to the work position 7 can be detected using the captured image.

[0126] In this modification, the tool position determination unit 384 of the work position display device 3 may also be provided in the image sensor device 80 together with the tool position detection unit 81. In this case, the tool control unit 385 of the work position display device 3 is omitted. In this case, the tool position determination unit 384 in the image sensor device 80 determines whether or not the power tool 2 is set at the work position 7 based on the detection result of the tool position detection unit 81. Then, the tool position determination unit 384 transmits the determination result to the power tool 2 from the communication unit 82 as an operation permission signal s1 or an operation refusal signal s2.

[0127] In this modification, the tool position detection unit 81 (imaging unit 811 and image processing unit 812) is provided in an image sensor device 80, which is a separate device other than the work position display device 3, the power tool 2, and the construction management terminal 4, but may be provided in the work position display device 3. In this case, the work position display device 3 is configured such that the tool position detection unit 36 ​​in Fig. 2 is replaced with the tool position detection unit 81 in Fig. 8. In this case, the image sensor device 80 is omitted.

[0128] (3-5) Variation 5 In this modification, the operation settings set in the power tool 2 can be changed by using the electromagnetic waves (for example, visible light 8) emitted by the work position display device 3 in the third modification.

[0129] The work position display device 3 of this modified example is obtained by adding the following operation to the work position display device 3 of modified example 3. That is, when the work position display device 3 of this modified example (light projection direction control unit 383) transmits the electromagnetic wave while gradually changing the transmission direction, the change condition is superimposed on the electromagnetic wave together with the transmission direction information. As a result, the change condition is transmitted from the work position display device 3 to the power tool 2 using the electromagnetic wave. The change condition is a work condition that specifies an operation setting different from the operation setting already set in the power tool 2.

[0130] When the communication unit 21 receives the electromagnetic wave, the operation setting unit 282 of the power tool 2 in this modification changes the operation setting already set in the power tool 2 to an operation setting that satisfies the change condition based on the change condition superimposed on the received electromagnetic wave. As a result, the operation setting of the power tool 2 is changed to an operation setting that satisfies the change condition.

[0131] According to this modification, the operation settings set in the power tool 2 can be changed by utilizing the electromagnetic waves used by the tool position detection unit 36 ​​to detect the relative position of the power tool 2 with respect to the work position 7.

[0132] In this modified example, an example is shown of transmitting change conditions for changing the operating settings of the power tool 2, but information other than the change conditions (e.g., work type d3 and work conditions d4) may also be superimposed on the electromagnetic waves and transmitted to the power tool 2.

[0133] This modification illustrates an example in which it is applied to Modification 3. However, this modification may also be applied to the above embodiment or Modification 1. When this modification is applied to the above embodiment, the work position indicator 3 (light projection direction control unit 383) superimposes a change condition on the visible light 8 projected from the light projector 33 to indicate the work position 7. Then, when the light receiver 25 receives a reflected wave of the visible light 8 at the work position 7, the operation setting unit 282 of the power tool 2 changes the operation setting already set in the power tool 2 to an operation setting that satisfies the change condition, based on the change condition superimposed on the received reflected wave.

[0134] (3-6) Variation 6 The above embodiment illustrates a case where the tool position detection unit 36 ​​and the tool position determination unit 384 are provided in the work position display device 3. However, the tool position detection unit 36 ​​and the tool position determination unit 384 may each be provided in the power tool 2 instead of in the work position display device 3, or may each be provided in a device other than the work position display device 3 and the power tool 2. According to this configuration, the present disclosure can be applied when the tool position detection unit 36 ​​and the tool position determination unit 384 are each provided in the power tool 2 or the other device.

[0135] (3-7) Variation 7 In the electric tool system 1 of the above embodiment, the construction management terminal 4 (relay terminal) is provided, but the construction management terminal 4 may be omitted. In this case, the construction management system 5 transmits various data (3D data d1, position data d2, task type and task conditions d4) to the work position display device 3 without going through the construction management terminal 4. In addition, the work position display device 3 transmits task results d5 to the construction management system 5 without going through the construction management terminal 4.

[0136] (4) Description From the above-described embodiments and modifications, the present disclosure can take the following aspects.

[0137] The power tool system (1) of the first embodiment includes a work position display device (3), a power tool (2), a tool position detection unit (36; 50; 70), and a tool position determination unit (384; 51; 71). The work position display device (3) indicates a work position (7) by projecting visible light (8) having convergence at a work site. The power tool (2) performs work at the work position (7) indicated by the visible light (8). The tool position detection unit (36; 50; 70) detects a relative position of the power tool (2) with respect to the work position (7). The tool position determination unit (384; 51; 71) determines whether or not the power tool (2) is set at the work position (7) based on the detection result of the tool position detection unit (36; 50; 70) before the power tool (2) performs work at the work position (7).

[0138] According to this configuration, the work position indicator (3) projects convergent visible light (8) at the work site to indicate the work position (7). Then, before the power tool (2) performs work at the work position (7), it is determined whether the power tool (2) is set at the work position (7) based on the detection result of the tool position detector (36). Therefore, the power tool (2) can be quickly set at the correct work position (7), and thus the power tool (2) can quickly perform work at the correct work position (7). As a result, the work position indicator (3) can quickly indicate the next work position (7), and work efficiency can be improved when working at the work position (7) at the work site using the power tool (2).

[0139] In the second aspect of the power tool system (1), in the first aspect, when the tool position determination unit (384) determines that the power tool (2) is not set at the work position (7), the power tool (2) is stopped or a notification is sent to those around the power tool (2) that the power tool (2) is not set at the work position (7).

[0140] According to this configuration, when the tool position determination unit (384) determines that the power tool (2) is not set at the work position (7), it is possible to notify a person (worker 6) around the power tool (2) that the power tool (2) is not set at the work position (7). This makes it possible to urge the worker (6) to set the power tool (2) at the work position (7). In addition, since the power tool (2) is stopped, it is possible to prevent the power tool (2) from being used to work at an incorrect work position.

[0141] In the third aspect of the power tool system (1), in the first or second aspect, the tool position detection unit (36) and the tool position determination unit (384) are respectively provided in the work position display device (3), the power tool (2), or a separate device (80) other than the work position display device (3) and the power tool (2).

[0142] According to this configuration, the present disclosure can be applied when the tool position detection unit (36) and the tool position determination unit (384) are provided in the work position display device (3), the power tool (2), or a separate device (80), respectively.

[0143] In the power tool system (1) of the fourth aspect, in any one of the first to third aspects, the tool position detection unit (36) is provided in the work position display device (3). The tool position detection unit (36) transmits a convergent electromagnetic wave (8) toward the work position (7). The power tool (2) receives a reflected wave of the electromagnetic wave (8) reflected at the work position (7), and transmits a reception intensity signal (t1) relating to the reception intensity of the received reflected wave to the work position display device (3). The tool position detection unit (36) detects the relative position based on the reception intensity signal (t1) received by the work position display device (3).

[0144] According to this configuration, the work position indicator (3) can detect the relative position using the reception strength of the reflected wave of the electromagnetic wave (8) transmitted from the work position indicator (3) and reflected at the work position (7). In particular, the reception strength of the electromagnetic wave (8) reflected at the work position (7) decreases rapidly with distance from the work position (7), and therefore the electromagnetic wave can be substantially received only in the vicinity of the work position (7). Therefore, depending on whether the power tool (2) can substantially receive the reflected wave of the electromagnetic wave (8) reflected at the work position (7), it can be easily detected whether the power tool (2) is disposed in the vicinity of the work position (7) (i.e., whether the power tool (2) is set at the work position (7)).

[0145] In the power tool system (1) of the fifth aspect, in any one of the first to third aspects, the tool position detection unit (50) is provided in the power tool (2). The work position display device (3) transmits a convergent electromagnetic wave (8) toward the work position (7). The tool position detection unit (50) receives a reflected wave of the electromagnetic wave (8) reflected at the work position (7), and detects the relative position using the reception intensity of the received reflected wave.

[0146] According to this configuration, the power tool (2) can detect the relative position by using the reception strength of the reflected wave of the electromagnetic wave (8) that is transmitted from the work position display device (3) and reflected at the work position (7). In particular, the reception strength of the electromagnetic wave (8) reflected at the work position (7) decreases rapidly when moving away from the work position (7), and therefore the electromagnetic wave can be substantially received only in the vicinity of the work position (7). Therefore, depending on whether the power tool (2) can substantially receive the reflected wave of the electromagnetic wave (8) reflected at the work position (7), it can be easily detected whether the power tool (2) is located in the vicinity of the work position (7) (i.e., whether the power tool (2)2 is set at the work position (7)7).

[0147] In the power tool system (1) of the sixth aspect, in any one of the first to third aspects, the tool position detection unit (36) is provided in the work position display device (3). The power tool (2) emits an electromagnetic wave (60). The tool position detection unit (36) receives the electromagnetic wave (60) emitted from the power tool (2) and detects the relative position using the reception intensity and reception direction of the received electromagnetic wave (60).

[0148] According to this configuration, the work position indicator (3) can detect the relative position by using the electromagnetic waves (60) from the power tool (2).

[0149] In the seventh aspect of the power tool system (1) according to any one of the first to third aspects, the electromagnetic wave is a first electromagnetic wave (8). The tool position detection unit (36) is provided in the power tool (2). The work position display device (3) transmits a convergent electromagnetic wave (8) to a certain range including the work position (7) at the work site while changing the transmission direction, and transmits the electromagnetic wave (8) by superimposing transmission direction information related to the transmission direction at the time of transmission on the electromagnetic wave (8). The tool position detection unit (36) detects the relative position using the reception intensity of the received electromagnetic wave (8) and the transmission direction information superimposed on the received electromagnetic wave (8).

[0150] According to this configuration, the relative position can be detected in the power tool (2) by using the electromagnetic wave (8) from the work position display device (3).

[0151] In the power tool system (1) of the eighth aspect, in any one of the first to third aspects, the tool position detection unit (81) is provided in one of the work position display device (3) and the separate device (80). The tool position detection unit (81) is an imaging sensor that captures an image including the work position (7) and the power tool (2) indicated by visible light (8) from the work position display device (3) and detects the relative position based on the captured image.

[0152] According to this configuration, the relative position can be detected using the captured image.

[0153] In the power tool system (1) of the ninth aspect, in the seventh aspect, the power tool (2) drives the tool tip (23a) attached to the power tool (2) based on an operation setting set in the power tool (2). The work position display device (3) transmits a change condition for changing the operation setting by superimposing it on the electromagnetic wave (8). Upon receiving the electromagnetic wave (8), the power tool (2) changes the operation setting to an operation setting that satisfies the change condition superimposed on the received electromagnetic wave (8).

[0154] According to this configuration, the operating settings set in the power tool (2) can be changed by utilizing the electromagnetic waves (8) used by the tool position detection unit (36) to detect the relative position of the power tool (2) with respect to the work position (7).

[0155] In the power tool system (1) of the tenth aspect, in any one of the first to ninth aspects, when the power tool (2) finishes a task, it transmits task completion information to the task position display device (3). Upon receiving the task completion information, the task position display device (3) indicates the next task position (7) at the task site by visible light (8).

[0156] According to this configuration, the work position display device (3) can quickly detect that the power tool (2) has finished the work by receiving the work completion information, and can quickly indicate the next work position (7) by the visible light (8).

[0157] In the power tool system (1) of the eleventh aspect, in any one of the first to tenth aspects, when the power tool (2) finishes a task, it transmits an operation waveform of the power tool (2) performing the task to the work position display device (3). The work position display device (3) associates the received operation waveform with the work position (7) and transmits it directly to the external system (5) or transmits it to the external system (5) via the relay terminal (4).

[0158] According to this configuration, after the work using the power tool (2) is completed, the operation waveform of the power tool (2) during the work can be associated with the work position (7) and transmitted to the external system (5). As a result, the operation waveform of the power tool (2) during the work can be managed in the external system (5) in association with the work position (7).

[0159] In the power tool system (1) of the 12th aspect, in any one of the first to 11th aspects, the work position display device (3) receives various information regarding 3D data (d1) of the work location, position data (d2) of the work position (7), the work type (d3) of the work, and work conditions (d4) of the work directly from the external system (5) or from the external system (5) via the relay terminal (4).

[0160] According to this configuration, the work position (7) indicated by the visible light (8) at the work site can be specified by various data (3D data, position data, work type, and work conditions) from the external system (5).

[0161] The power tool (2) of the thirteenth aspect is a power tool that performs a task at a work position (7) indicated by convergent visible light (8) at a work site. The power tool (2) includes a tool position detection unit (36; 50; 70) and a tool position determination unit (384; 51; 71). The tool position detection unit (36; 50; 70) detects a relative position of the power tool (2) with respect to the work position (7). The tool position determination unit (384; 51; 71) determines whether or not the power tool (2) is set at the work position (7) based on the detection result of the tool position detection unit (36; 50; 70) before the power tool (2) performs the task at the work position (7).

[0162] According to this configuration, it is possible to provide a power tool (2) including the tool position detection unit (36; 50; 70) and the tool position determination unit (384; 51; 71) of the first aspect. That is, it is possible to provide a power tool (2) having the operational effect of the first aspect.

[0163] The power tool control method of the fourteenth aspect includes a first step (step S10), a second step (step S17), a third step (step S11), and a fourth step (step S12). In the first step (step S10), a work position (7) is indicated by projecting visible light (8) at a work site using a work position display device (3). In the second step (step S17), a work is performed using the power tool (2) at the work position (7) indicated by the visible light (8). In the third step (step S11), a relative position of the power tool (2) with respect to the work position (7) is detected. In the fourth step (step S12), it is determined whether or not the power tool (2) is set at the work position (7) based on a detection result in the third step before the power tool (2) performs a work at the work position (7).

[0164] According to this configuration, it is possible to provide a power tool control method that achieves the same effects as the power tool system (1) of the first aspect.

[0165] A program according to a fifteenth aspect causes one or more processors to execute the power tool control method according to the fourteenth aspect.

[0166] According to this configuration, it is possible to provide a program for causing one or more processors to execute the power tool control method. [Explanation of symbols]

[0167] 1 Power Tool System 2 Power tools 3 Working position display device 4 Construction management terminal (relay terminal) 5 Construction management system (external system) 7 Working position 8 Visible light laser (visible light, electromagnetic wave, first electromagnetic wave) 23a Tip tool 36,50,70 Tool position detector 60 Electromagnetic Waves 80 Image sensor device 384,51,71 Tool position determination section d1 3D data d2 Location data d3 Work type d4 Working conditions t1 receive strength signal

Claims

1. A work position display device that indicates a work position by projecting convergent visible light at a work site; an electric tool that receives a reflected wave of the visible light reflected at the work position and performs a work at the work position indicated by the visible light; a tool position detection unit that detects a relative position of the power tool with respect to the work position based on a reception intensity of the reflected wave received by the power tool; a tool position determination unit that determines whether or not the power tool is set at the work position based on a detection result of the tool position detection unit before the power tool performs the work at the work position. Power tool system.

2. A work position display device that indicates a work position by projecting convergent visible light at a work site; an electric tool for performing a task at the task position indicated by the visible light; a tool position detection unit that detects a relative position of the power tool with respect to the working position; a tool position determination unit that determines whether or not the power tool is set at the work position based on a detection result of the tool position detection unit before the power tool performs the work at the work position, The tool position detection unit is provided in the work position display device, The tool position detection unit transmits a convergent electromagnetic wave toward the work position, The electric power tool receives a reflected wave of the electromagnetic wave reflected at the work position, and transmits a reception intensity signal related to a reception intensity of the received reflected wave to the work position display device; The tool position detection unit detects the relative position based on the reception intensity signal received by the work position display device. Power tool system.

3. A work position display device that indicates a work position by projecting convergent visible light at a work site; an electric tool for performing a task at the task position indicated by the visible light; a tool position detection unit that detects a relative position of the power tool with respect to the working position; a tool position determination unit that determines whether or not the power tool is set at the work position based on a detection result of the tool position detection unit before the power tool performs the work at the work position, The tool position detection unit is provided in the power tool, The work position display device transmits a convergent electromagnetic wave toward the work position, the tool position detection unit receives a reflected wave of the electromagnetic wave reflected at the work position, and detects the relative position using a reception intensity of the received electromagnetic wave. Power tool system.

4. A work position display device that indicates a work position by projecting convergent visible light at a work site; an electric tool for performing a task at the task position indicated by the visible light; a tool position detection unit that detects a relative position of the power tool with respect to the working position; a tool position determination unit that determines whether or not the power tool is set at the work position based on a detection result of the tool position detection unit before the power tool performs the work at the work position, The tool position detection unit is provided in the power tool, the work position display device transmits a convergent electromagnetic wave to a certain range including the work position at the work site while changing a transmission direction, and transmits the electromagnetic wave by superimposing transmission direction information regarding the transmission direction at the time of transmission on the electromagnetic wave; the tool position detection unit detects the relative position by using a reception intensity of the received electromagnetic wave and the transmission direction information superimposed on the received electromagnetic wave. Power tool system.

5. A work position display device that indicates a work position by projecting convergent visible light at a work site; an electric tool for performing a task at the task position indicated by the visible light; a tool position detection unit that detects a relative position of the power tool with respect to the working position; a tool position determination unit that determines whether or not the power tool is set at the work position based on a detection result of the tool position detection unit before the power tool performs the work at the work position, When the work is completed, the electric tool transmits an operation waveform of the electric tool during the work to the work position display device; The work position display device associates the received motion waveform with the work position and transmits the motion waveform directly to an external system or transmits the motion waveform to the external system via a relay terminal. Power tool system.

6. The tool position detection unit is provided in the work position display device, The power tool emits electromagnetic waves, the tool position detection unit receives the electromagnetic wave transmitted from the power tool, and detects the relative position by using a reception strength and a reception direction of the received electromagnetic wave. The power tool system according to claim 5 .

7. The tool position detection unit is a device for detecting a work position, and a device for detecting a work position and a front The power tool is provided on one side of a device other than the power tool, the tool position detection unit captures an image including the work position indicated by the visible light from the work position display device and the power tool, and detects the relative position based on the captured image. The power tool system according to claim 5 .

8. When the tool position determination unit determines that the power tool is not set at the work position, the power tool is stopped or a notification is given to those around the power tool that the power tool is not set at the work position. The power tool system according to any one of claims 1 to 7.

9. The tool position detection unit and the tool position determination unit are respectively provided in the work position display device, the power tool, or a device other than the work position display device and the power tool. The power tool system according to any one of claims 1 to 8.

10. The electric power tool drives a tool tip attached to the electric power tool based on an operation setting set in the electric power tool, The work position display device transmits a change condition for changing the operation setting by superimposing the change condition on the electromagnetic wave, When the electric power tool receives the electromagnetic wave, the electric power tool changes the operation setting to an operation setting that satisfies the change condition superimposed on the received electromagnetic wave. The power tool system according to claim 4 .

11. When the work is completed, the electric tool transmits work completion information to the work position display device, When the work position display device receives the work completion information, the work position display device indicates a next work position at the work site by the visible light. The power tool system according to any one of claims 1 to 10.

12. The work position display device receives various information related to the 3D data of the work site, the position data of the work position, the work type of the work, and the work conditions of the work directly from an external system or via a relay terminal from the external system. The power tool system according to any one of claims 1 to 11.

13. An electric tool for performing a task at a task position indicated by convergent visible light at a task site, a tool position detection unit that detects a relative position of the power tool with respect to the work position by receiving a reflected wave of the electromagnetic wave reflected at the work position after a convergent electromagnetic wave is transmitted from a work position display device to the work position and detecting a relative position of the power tool with respect to the work position using a reception intensity of the received electromagnetic wave; a tool position determination unit that determines whether or not the power tool is set at the work position based on a detection result of the tool position detection unit before the power tool performs the work at the work position. Power tools.

14. An electric tool for performing a task at a task position indicated by convergent visible light at a work site, a tool position detection unit that transmits converging electromagnetic waves from a work position display device to a certain range including the work position at the work site while changing the transmission direction, and transmits the electromagnetic waves with transmission direction information regarding the transmission direction at the time of transmission superimposed on the electromagnetic waves, receives the transmitted electromagnetic waves, and detects a relative position of the power tool with respect to the work position using a reception intensity of the received electromagnetic waves and the transmission direction information superimposed on the received electromagnetic waves; a tool position determination unit that determines whether or not the power tool is set at the work position based on a detection result of the tool position detection unit before the power tool performs the work at the work position. Power tools.

15. An electric tool for performing a task at a task position indicated by convergent visible light at a work site, a tool position detection unit that detects a relative position of the power tool with respect to the working position; a tool position determination unit that determines whether or not the power tool is set at the work position based on a detection result of the tool position detection unit before the power tool performs the work at the work position, When the work is completed, the electric tool transmits an operation waveform of the electric tool during the work to a work position display device, and the operation waveform received by the work position display device is associated with the work position and transmitted directly to an external system or transmitted to the external system via a relay terminal. Power tools.

16. A first step of indicating a work position by projecting convergent visible light at a work site using a work position display device; a second step of performing a task using a power tool at the task position indicated by the visible light; a third step of transmitting a convergent electromagnetic wave from the work position display device toward the work position, receiving a reflected wave of the electromagnetic wave reflected at the work position by a tool position detection unit provided in the power tool, and detecting a relative position of the power tool with respect to the work position using a reception intensity of the received electromagnetic wave; and a fourth step of determining whether or not the power tool is set at the work position based on a detection result of the third step before the power tool performs the work at the work position. A method for controlling a power tool.

17. A first step of indicating a work position by projecting convergent visible light at a work site using a work position display device; a second step of performing a task using a power tool at the task position indicated by the visible light; a third step of transmitting a converging electromagnetic wave from the work position display device to a certain range including the work position at the work site while changing the transmission direction, and transmitting the electromagnetic wave with transmission direction information regarding the transmission direction at the time of transmission superimposed on the electromagnetic wave, receiving the transmitted electromagnetic wave by a tool position detection unit provided in the power tool, and detecting a relative position of the power tool with respect to the work position using a reception strength of the received electromagnetic wave and the transmission direction information superimposed on the received electromagnetic wave; and a fourth step of determining whether or not the power tool is set at the work position based on a detection result of the third step before the power tool performs the work at the work position. A method for controlling a power tool.

18. A first step of indicating a work position by projecting convergent visible light at a work site using a work position display device; a second step of performing a task using a power tool at the task position indicated by the visible light; a third step of detecting a relative position of the power tool with respect to the working position; a fourth step of determining whether or not the power tool is set at the work position based on a detection result of the third step before the power tool performs the work at the work position; and a fifth step of transmitting, when the work is completed, an operation waveform of the power tool during the work to the work position display device, and the operation waveform received by the work position display device is associated with the work position and transmitted directly to an external system or transmitted to the external system via a relay terminal. A method for controlling a power tool.

19. A program for causing one or more processors to execute the power tool control method described in any one of claims 16 to 18.

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