Device control device, device control method, and device control program

Abstract

To provide an instrument control method, an instrument control device, and an instrument control program which facilitate appropriate use of an instrument.SOLUTION: An instrument discrimination device 3 includes: a storage section 305 for storing a correspondence table 41 corresponding to instrument identification information and grade information; an input section 303 for accepting selection instructions of an instrument; a communication section 302 communicably connected to a selected instrument; and a control section 301 for obtaining the grade information corresponding to the instrument identification information of the instrument communicably connected in reference to the correspondence table 41, so as to set an operable range of the instrument according to the obtained grade information.SELECTED DRAWING: Figure 2

Description

[Technical Field]

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

[0002] As a surveying technique using a surveying device such as a total station, a technique of operating the surveying device using a separate device has been disclosed. For example, Patent Document 1 discloses an automatic surveying system in which a surveying terminal device that controls the surveying device (surveying instrument), a surveyor terminal device carried by the surveyor, and a server are communicably connected via a network. This surveyor terminal device receives operations from an operator and transmits predetermined instructions to the surveying terminal device via the network and the server, and the surveying terminal device controls the operation of the surveying instrument. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 6488470 Summary of the Invention [Problem to be solved by the invention]

[0004] The operating range of surveying equipment and other devices may be determined according to their grade and use. To ensure proper use of the device, for example, workers may check the operating range of the device or set the operating range for the device themselves, but these methods may reduce work efficiency when using the device.

[0005] The present invention has been made to solve such problems, and its purpose is to provide an equipment control device, an equipment control method, and an equipment control program that facilitate appropriate use of equipment. [Means for solving the problem]

[0006] In order to achieve the above-mentioned object, the equipment control device of the present invention comprises a memory unit that stores a correspondence table in which equipment identification information and grade information correspond to each other, an input unit that accepts equipment selection instructions, a communication unit that communicates with the selected equipment, and a control unit that determines the grade information corresponding to the equipment identification information of the connected equipment by referring to the correspondence table, and sets the operating range of the equipment according to the determined grade information.

[0007] In the above-mentioned equipment control device, the equipment may include a surveying instrument, and the equipment identification information may include a model name of the surveying instrument.

[0008] In the above-mentioned equipment control device, the control unit may set the operable range by restricting the measurable distance from the instrument point of the surveying device to the measurement target in accordance with the class information.

[0009] Furthermore, as the above-mentioned equipment control device, when the control unit receives input of a measurement instruction for the surveying instrument from the input unit, if the distance from the surveying instrument to the measurement object is longer than the measurable distance, the control unit may restrict the acceptance of the measurement instruction for the surveying instrument.

[0010] In the device control apparatus described above, the input unit may receive the selection instruction by having an operator select from the group of devices detected via the communication unit.

[0011] In addition, in the above-mentioned equipment control device, the correspondence table may further include country information corresponding to the equipment identification information and the class information, and the control unit may determine the class information corresponding to a combination of the equipment identification information and the country information.

[0012] In order to achieve the above-mentioned object, the equipment control method of the present invention is an equipment control method using an equipment control device that stores a correspondence table in which equipment identification information and grade information correspond to each other, and includes the steps of receiving an instruction to select an equipment by an input unit, establishing a communication connection with the selected equipment by a communication unit, and determining the grade information corresponding to the equipment identification information of the connected equipment by referring to the correspondence table, and setting the operable range of the equipment according to the determined grade information.

[0013] In order to achieve the above-mentioned object, the equipment control program of the present invention causes a computer to execute the following steps: a step in which an equipment control device receives an instruction to select an equipment; a step in which the equipment control device communicates with the selected equipment; a step in which grade information corresponding to the equipment identification information of the connected equipment is obtained by referring to a correspondence table in which the equipment identification information and the grade information are associated and which is stored in the equipment control device; and a step in which the operable range of the equipment is set according to the obtained grade information. [Effects of the Invention]

[0014] The device control device, device control method, and device control program according to the present invention using the above means can facilitate appropriate use of devices. [Brief explanation of the drawings]

[0015] [Figure 1] 1 is an overall configuration diagram of a device control system according to an embodiment of the present invention; [Figure 2] FIG. 2 is a control block diagram of the equipment control device and the surveying device. [Figure 3] FIG. 10 is a diagram illustrating the configuration of a correspondence table. [Figure 4] 4 is a control flowchart of the device control device. [Figure 5] FIG. 10 is a diagram showing a device setting screen. [Figure 6] FIG. 10 is a diagram showing a measurement instruction screen. [Figure 7] FIG. 10 is a diagram illustrating the configuration of a correspondence table according to a modified example of the present embodiment. DETAILED DESCRIPTION OF THE INVENTION

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

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

[0018] The surveying system 1 includes a surveying device 2 and an equipment control device 3. In this embodiment, the surveying device 2 and the equipment control device 3 are communicatively connected by executing an equipment (instrument) connection process (see the process in step S01 in FIG. 4). A wireless communication means such as Bluetooth (registered trademark) is used as the communication means, but a wired communication means connected via a connection terminal may also be used. The surveying device 2 is, for example, a total station, and can perform surveying by measuring the angle and distance to a measurement point 7 (see FIG. 6), which is a measurement target. The surveying device 2 includes a leveling unit 21 supported by legs for leveling, a base unit 22 mounted on the leveling unit 21, a main unit 23 rotatable about a vertical axis of the base unit 22, and a telescope unit 24 rotatable about a horizontal axis on the main unit 23. Therefore, the telescope unit 24 is rotatable about a horizontal axis and a vertical axis relative to the base unit 22. Leveling may be performed manually by an operator by adjusting the leveling unit 21, or automatic leveling may be used.

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

[0020] 2 is a control block diagram of the equipment control device 3 and the surveying device 2. First, the configuration of the surveying device 2 will be described. The communication unit 201 is a communication means capable of communicating with the equipment control device 3 and other devices. The storage unit 202 is configured to be able to store various data such as various programs for tracking, surveying, etc., surveying data, GPS time, the size (height, width, depth, etc.) of the surveying device 2, and images received (captured) by the tracking light transmitting and receiving unit 208.

[0021] The display unit 203 can display images captured by the tracking light transmitting and receiving unit 208, etc. The operation unit 204 is an operating means that can input various operational instructions and settings. For example, operational instructions can include switching the power on and off, triggering to start surveying, switching the surveying mode, setting the surveying cycle, etc. The operation unit 204 may also include any operation or input device, such as a switch, button, or dial. If the display unit 203 is a touch panel, the display unit 203 and the operation unit 204 may be formed integrally.

[0022] The distance measuring unit 207 includes a light transmitting unit that emits distance measuring light, and a light receiving unit that receives the reflected light that is irradiated with the distance measuring light from the light transmitting unit and reflected by the measurement object. The measurement object is, for example, a prism, which is a retroreflective member provided on a pinpole or the like. Note that the measurement object is not limited to a retroreflective member, and may be any other reflective member (for example, a reflective sheet, a target plate, a wall, or the like) that has a reflective function sufficient to reflect the light irradiated from the surveying device 2 and allow the surveying device 2 to detect the reflected light.

[0023] The distance measuring unit 207 measures the distance (slope distance) from the surveying device 2 to the measurement object by emitting distance measuring light, for example, pulsed laser light, and receiving light reflected by the measurement object. Note that the distance measuring method is not limited to such a pulse method, and it is also possible to apply a well-known method such as a so-called phase difference method that measures distance based on the number of waves of laser light.

[0024] Tracking light transmitting and receiving unit 208 is a light source capable of irradiating tracking light toward the measurement object. Tracking light transmitting and receiving unit 208 also has a light receiving element such as an image sensor (CCD sensor, CMOS sensor, etc.) that receives a portion of the tracking light reflected by the measurement object and converts it into an electrical signal. Control unit 211 can control the tracking function of the measurement object by controlling horizontal rotation drive unit 205 and vertical rotation drive unit 206 so that the light receiving element continues to receive the tracking light emitted from the light source in tracking light transmitting and receiving unit 208.

[0025] Horizontal rotation drive unit 205 controls telescope unit 24 (see FIG. 1) so that it can rotate in the horizontal direction around a vertical axis. Vertical rotation drive unit 206 controls telescope unit 24 so that it can rotate in the vertical direction around a horizontal axis.

[0026] The surveying instrument 2 also has a horizontal angle detection unit 209 (horizontal encoder) that detects the horizontal rotation angle of the telescope unit 24 (i.e., the rotation angle around the vertical axis), and a vertical angle detection unit 210 (vertical encoder) that detects the vertical rotation angle of the telescope unit 24 (i.e., the rotation angle around the horizontal axis). The surveying instrument 2 has a built-in distance measurement unit 207 that includes a distance measurement optical system, and part of the optical path of the distance measurement optical system of this distance measurement unit 207 is shared with part of the optical system of the telescope. Light emitted from the distance measurement unit 207 or the tracking light transmitting and receiving unit 208 is guided coaxially with the collimation axis and emitted from the objective side of the telescope unit 24.

[0027] Furthermore, the control unit 211 acquires, stores, calculates, etc. various information such as the angles (horizontal angle and vertical angle) detected by the horizontal angle detection unit 209 and the vertical angle detection unit 210, the distance (slant distance) measured by the distance measurement unit 207, and the image captured by the tracking light transmitting and receiving unit 208, and causes the acquired results and calculation results to be displayed on, for example, the display unit 203 or the display unit 304 of the equipment control device 3. Furthermore, the control unit 211 performs drive control, etc. of each unit in response to an operation on the operation unit 204 or in response to the calculation results.

[0028] The equipment control device 3 includes a control unit 301, a communication unit 302, an input unit 303, a display unit 304, and a storage unit 305. The equipment control device 3 can send and receive information to and from the surveying device 2 via the communication unit 302. The input unit 303 is an operating unit that can input various operational instructions and settings. For example, operational instructions can include switching the power on and off, triggering the start of surveying, switching the surveying mode, setting the surveying cycle, and selecting the surveying device 2 (equipment). The input unit 303 can include any operating device or input device, such as a switch, button, or dial, depending on the form of the equipment control device 3. Furthermore, the equipment control device 3 can remotely control the surveying device 2 in response to input operations on the input unit 303, and can acquire information such as the surveying results of the surveying device 2 and display it on the display unit 304. The display unit 304 can display images captured by the tracking light transmitting and receiving unit 208. If the display unit 304 is a touch panel, the display unit 304 may be integrally formed with the input unit 303. The storage unit 305 stores information such as the correspondence table 41 and the device control program 42.

[0029] The device control device 3 also includes a computer (not shown) for controlling the device control device 3. The device control program 42 can also be stored in a computer-readable storage medium (or storage device) included in the device control device 3, for example.

[0030] 3 is a diagram showing the structure of the correspondence table 41. The correspondence table 41 stores corresponding equipment identification information 411 and class information 412. The equipment identification information 411 can be the model name, type, product number, series name, serial number, etc. of the surveying device 2. The equipment identification information 411 can include any letters, numbers, and symbols.

[0031] The class information 412 is type information classified according to the measurement accuracy (e.g., angle measurement accuracy) of the surveying device 2. The surveying device 2 can be used for different surveying work contents and purposes depending on the class. In this embodiment, a case is described in which the device connected to the device control device 3 is a surveying device 2, and the class information 412 is stored as, for example, "Class 1," "Class 2," or "Class 3."

[0032] Next, a device control method executed by the device control device 3 will be described with reference to the control flowchart in Fig. 4. Note that the control unit 301 can execute the device control program 42 to perform processing including the steps in Fig. 4.

[0033] First, in step S01, the control unit 301 receives an instruction to select the surveying device 2 from the input unit 303. The display unit 304 of this embodiment is provided on a touch panel formed integrally with the input unit 303. Therefore, the selection of the surveying device 2 is performed, for example, by an operator touching the content displayed on the display unit 304 of the equipment control device 3.

[0034] FIG. 5 shows an example of the device setting screen 51 displayed on the display unit 304 in step S01. Items displayed on the device setting screen 51 include "Brand," which is manufacturer information for the device (instrument) such as the surveying device 2, and "Model Name," which is device identification information for the surveying device 2. The "Connection" section on the device setting screen 51 also displays the communication connection method (e.g., Bluetooth (registered trademark)). The device control device 3 receives standby signals containing device identification information from surrounding surveying devices 2. The control unit 301 can detect surrounding surveying devices 2 from one or more standby signals acquired via the communication unit 302. When "Model Name" is selected, the control unit 301 displays the device identification information of the surveying devices 2 contained in the standby signals received from one or more surveying devices 2 on the display unit 304 (e.g., in a list format). Therefore, the operator can arbitrarily select a device to be controlled from the group of surveying devices 2 detected via the communication units 302 and 201 by inputting information into the input unit 303. When the control unit 301 receives an instruction to select the equipment identification information of the surveying device 2 via the input unit 303, it establishes a communication connection with the surveying device 2 corresponding to the selected equipment identification information.

[0035] In this embodiment, an example will be described in which an arbitrary one of the surveying instruments 2 detected via the communication units 302, 201 is selected, but multiple surveying instruments 2 may be selected. In this case, when issuing a measurement instruction in step S04 described later, the operator can use the input unit 303 to select which surveying instrument 2 to use for measurement.

[0036] In step S02, the control unit 301 refers to the correspondence table 41 and obtains the class information of the connected surveying device 2 by acquiring the class information 412 corresponding to the device identification information 411. The control unit 301 sets the measurable distance, which is the operational range of the surveying device 2, according to the obtained class information 412. For example, if the class is "Class 2," the measurable distance is set to "within 150 m," and if the class is "Class 3," the measurable distance is set to "within 100 m." Therefore, the control unit 301 can limit the measurable distance from the instrument point of the surveying device 2 to the measurement point 7, which is the measurement target, according to the class information.

[0037] Whether or not to restrict operation based on the measurable distance (operable range) may be switched depending on the operation mode of the surveying device 2 (instrument) (for example, when measuring a specific measurement point 7, whether or not it is within the operable range may be determined). Also, the measurable distance (operable range) corresponding to the class information can be stored in advance in the storage unit 305 as an operation range setting table (not shown).

[0038] In step S03, the surveying device 2 is installed. The control unit 301 accepts the selection of the instrument installation method from settings such as resection (for example, rear resection) and backsight point (known point) through an input operation on the input unit 303. The control unit 301 sends a control instruction to the surveying device 2 to specify the instrument point of the surveying device 2 using the selected instrument installation method. When the control unit 211 of the surveying device 2 determines the instrument point using the instrument installation method selected by the equipment control device 3, it sends the information of the instrument point to the equipment control device 3. The control unit 301 acquires the information of the instrument point of the surveying device 2 and stores it in the memory unit 305.

[0039] In step S04, the control unit 301 issues a measurement instruction to the surveying device 2. FIG. 6 is an example of a measurement instruction screen 52 displayed on the display unit 304 in step S04. The measurement instruction screen 52 includes the surveying device 2, known points 6, measurement points 7, and various information and operation icons. Among these, the measurement point 7, which is the measurement target, can be data included in measurement point data (e.g., route data) that the equipment control device 3 has pre-loaded from the memory unit 305 or the like. The measurement point data can include one or more measurement points 7. FIG. 6 shows an example in which one measurement point 7 is displayed. The control unit 301 receives an instruction to select the measurement point 7 displayed on the measurement instruction screen 52 via the input unit 303.

[0040] The identification information of the selected measurement point 7 is displayed as "measurement point name" on the measurement instruction screen 52 (specific display omitted). In addition, "cross section" displays the cross section of the measurement point 7 selected by "measurement point name" (for example, in the case of measurement point 7 in the route data, the pile number corresponding to the number pile, and the pile number and plus position information corresponding to the plus pile), and "cross point" displays the cross point of the measurement point 7 selected by "measurement point name". Furthermore, "from cross section" displays the distance in the forward / backward direction (toward the route) from the cross section to which measurement point 7 belongs to the actual measurement point, and "from CL" displays the distance to the left and right from the center of the route to which measurement point 7 belongs.

[0041] Thereafter, when the operator selects the measurement icon 521 (here, the distance measurement icon) on the measurement instruction screen 52, the control unit 301 performs the process of step S05.

[0042] In step S05, the control unit 301 determines whether the selected measurement point 7 exceeds the distance limit set in step S02 (i.e., whether the distance L from the surveying instrument 2 to the measurement point 7 is longer than the measurable distance). If the determination in step S05 is true (Yes), the control unit 301 performs the process of step S06, and if the determination in step S05 is false (No), the control unit 301 performs the process of step S07.

[0043] In step S06, the control unit 301 transmits a measurement instruction to the surveying device 2 via the communication units 302 and 201, and causes the surveying device 2 to measure (measure distance or angle) the measurement point 7. The control unit 301 can receive the measurement results such as distance or angle via the communication units 302 and 201 and store them in the memory unit 305.

[0044] On the other hand, in step S07, the control unit 301 does not send a measurement instruction to the surveying device 2, and displays on the display unit 304 a message that a measurement point 7 that cannot be measured has been selected. For example, the control unit 301 can cause the display unit 304 to display an error message saying, "This point cannot be saved because the distance from the instrument point exceeds the limit."

[0045] Regardless of the content of the error message, the control unit 301 may prohibit the measurement (distance measurement or angle measurement) itself, or may perform the measurement and display the results on the display unit 304, prohibiting the storage of the measurement data.

[0046] In this way, when the control unit 301 receives an input of a measurement instruction to the surveying device 2 via the input unit 303, if the distance L from the surveying device 2 to the measurement point 7 is longer than the measurable distance, it can restrict the acceptance of the measurement instruction to the surveying device 2. For example, in management section as-built observation, a limit is set in advance on the measured distance value depending on the surveying device 2 used for the measurement (observation), so when performing management section as-built observation, the control unit 301 can prevent the surveying device 2 from performing a measurement that exceeds the limit by the judgment process of step S05.

[0047] (Variation) Next, a modified example of this embodiment will be described. In this modified example, the surveying system 1 has the same configuration as that described above, but uses a correspondence table 41A shown in Fig. 7 instead of the correspondence table 41 shown in Fig. 3. The correspondence table 41A stores, in correspondence with the equipment identification information 411 and the class information 412, manufacturer information 413 and country information 414.

[0048] An example of processing using the correspondence table 41A will be described. In step S01 of the control flowchart described with reference to FIG. 6, the control unit 301 receives an instruction to select a surveying instrument 2 from the input unit 303. When "brand" is selected by an input operation on the input unit 303, the control unit 301 displays one or more brands (manufacturers) and receives a brand selection instruction to select one or more of them. When "model name" is selected by an input operation on the input unit 303, the control unit 301 displays one or more pieces of equipment identification information for the surveying instrument 2 that is included in the brand name selected in the brand selection instruction and that was detected by the above-mentioned standby signal. When the control unit 301 receives an instruction to select equipment identification information to be controlled from the group of surveying instruments 2 detected by the input unit 303 via the communication units 302, 201, it establishes a communication connection with the surveying instrument 2 that corresponds to the selected equipment identification information.

[0049] Therefore, the operator can easily narrow down and select the surveying instrument 2 he or she wants to use from among a plurality of surveying instruments 2.

[0050] 6, the control unit 301 refers to the correspondence table 41A to obtain and calculate the manufacturer information 413, the equipment identification information 411, and the class information 412 corresponding to the country information 414 for the connected surveying device 2. That is, the control unit 301 calculates the class information 412 corresponding to the combination of the equipment identification information 411 and the country information 414. Note that the instruction to select the country information 414 may be configured to receive a selection at any time via the input unit 303 in step S02, or the country information 414 may be stored in advance in the storage unit 305. The control unit 301 sets the measurable distance, which is the operable range of the surveying device 2, according to the calculated class information 412. Therefore, the control unit 301 can limit the measurable distance from the instrument station of the surveying device 2 to the measurement point 7, which is the measurement target, according to the class information.

[0051] As described above, in this embodiment, the device control device 3 has been described as comprising a storage unit 305 that stores a correspondence table 41 in which device identification information 411 and class information 412 correspond to each other, an input unit 303 that receives a device selection instruction, a communication unit 302 that connects and communicates with the selected device, and a control unit 301 that obtains class information corresponding to the device identification information of the connected and communicated device by referring to the correspondence tables 41, 41A, and sets the device's operable range in accordance with the obtained class information 412. With this configuration, the class of the device (e.g., the surveying device 2) that the device control device 3 controls is automatically set, making it possible to configure a device control device 3, a device control method, and a device control program 42 that facilitate appropriate use of the device.

[0052] Furthermore, the equipment control device 3 of this embodiment can prevent an operator from setting an incorrect grade, and can prevent measurements from being taken that exceed the limit of the measurable distance set according to the grade. This can improve the reliability of the measurement data measured by the surveying device 2 and the work efficiency.

[0053] Although the description of the embodiment of the present invention has been completed above, the aspects of the present invention are not limited to this embodiment.

[0054] For example, in the above embodiment, a surveying device 2 was used as an example of equipment that is communicatively connected to the equipment control device 3, but other equipment (here including devices) such as a GNSS (Global Navigation Satellite System) receiving device, a rotary laser device, etc. may be applied instead of the surveying device 2.

[0055] In addition, in Figure 1 of this embodiment, a configuration is shown in which the surveying device 2 and the equipment control device 3 are directly connected for communication, but the surveying device 2 and the equipment control device 3 may also be connected for communication via a relay device not shown.

[0056] In addition, the grade information 412 may be stored in any combination of grades, such as "special grade," "grade 1," "grade 2," "grade 2A," "grade 2B," or "grade 3," depending on the type of equipment, and the operating range of the equipment may be set according to the performance of each grade.

[0057] Furthermore, the equipment identification information displayed as a choice for the surveying instrument 2 (equipment) on the equipment setting screen 51 is not limited to the "model name," and other identification information may be displayed selectably.

[0058] The storage unit 305 may also store additional information about the surveying device 2 that the equipment control device 3 uses to determine whether to permit connection (or control). Examples of the additional information include the presence or absence of "auto-tracking," version information, or authentication information. In step S01 of the control flowchart in FIG. 4, the control unit 301 may prohibit connection to the surveying device 2 accepted by the selection instruction, depending on the content of the additional information. This allows the equipment control program 42 to prohibit connection to an incompatible surveying device 2 or identify non-genuine surveying devices. Furthermore, if the control unit 301 determines that the surveying device 2 is incompatible, it may display an error message on the display unit 304 indicating that the surveying device 2 being judged is not supported.

[0059] Furthermore, if the equipment control program 42 does not support the control of equipment such as the surveying instrument 2, the control unit 301 may cause the display unit 304 to display a message prompting the updating of the equipment control program 42. Updating the equipment control program 42 may include updating the correspondence tables 41, 41A (for example, adding the equipment identification information 411 and data corresponding to the equipment identification information 411). [Explanation of symbols]

[0060] 1. Surveying System 2 Surveying equipment 3 Equipment control device 6 Known points 7 measurement points 21 Leveling section 22 Base 23 Main body 24 Telescope Department 41,41A compatible table 42 Device Control Program 51 Device settings screen 52 Measurement instruction screen 201 Communications Department 202 Storage section 203 Display section 204 Operation section 205 Horizontal rotation drive unit 206 Vertical rotation drive unit 207 Ranging section 208 Tracking light transmitting and receiving unit 209 Horizontal angle detector 210 Vertical angle detection unit 211 Control Unit 301 Control Unit 302 Communications Department 303 Input section 304 Display section 305 Storage section 411 Device identification information 412 Grade information 413 Manufacturer Information 414 Country Information 521 measurement icon

Claims

1. a storage unit that stores a correspondence table in which device identification information and class information correspond to each other; an input unit that receives an instruction to select a surveying device; a communication unit for communicating with the selected surveying instrument; a control unit that determines the class information corresponding to the equipment identification information of the surveying instrument connected by communication with the control unit by referring to the correspondence table, and sets the operable range of the surveying instrument according to the determined class information; An equipment control device comprising:

2. a storage unit that stores a correspondence table in which device identification information and class information correspond to each other; an input unit that receives an instruction to select a device for measuring distance; a communication unit that connects to the selected device; a control unit that determines the class information corresponding to the device identification information of the device connected for communication by referring to the correspondence table, and sets the measurable distance of the device in accordance with the determined class information, The grade information is type information classified according to the measurement accuracy of the device. Equipment control device.

3. The equipment control device according to claim 1 , wherein the control unit sets the operable range by limiting a measurable distance from an instrument point of the surveying device to a measurement target in accordance with the class information.

4. 4. The equipment control device according to claim 3, wherein the control unit, when receiving input of a measurement instruction for the surveying instrument from the input unit, restricts the acceptance of the measurement instruction for the surveying instrument if the distance from the surveying instrument to the measurement object is longer than the measurable distance.

5. A device control method using a device control device that stores a correspondence table in which device identification information and class information correspond to each other, a step of receiving an instruction to select a surveying device by an input unit; a step of establishing a communication connection with the surveying instrument selected by a communication unit; a step of obtaining the class information corresponding to the equipment identification information of the surveying instrument connected by communication with the corresponding table, and setting the operable range of the surveying instrument according to the obtained class information; A device control method including:

6. A device control method using a device control device that stores a correspondence table in which device identification information and class information correspond to each other, receiving, by an input unit, an instruction to select a device for measuring distance; a step of establishing a communication connection with the selected device by a communication unit; and determining the class information corresponding to the device identification information of the device connected for communication by referring to the correspondence table, and setting the measurable distance of the device in accordance with the determined class information, The grade information is type information classified according to the measurement accuracy of the device. Equipment control method.

7. A device control program, a step of receiving an instruction to select a surveying instrument by an equipment control device; a step of connecting the equipment control device to the selected surveying instrument for communication; a step of determining class information corresponding to the equipment identification information of the surveying instrument connected by communication with the equipment control device by referring to a correspondence table in which the equipment identification information and the class information are associated, and setting the operable range of the surveying instrument according to the determined class information; An equipment control program for causing a computer to execute the above.

8. A device control program, a step of receiving an instruction to select a device to measure distance by the device control device; a step of communicating with the selected device by the device control device; a step of obtaining class information, which is information corresponding to the device identification information of the device connected for communication and is classified according to the measurement accuracy of the device, by referring to a correspondence table in which the device identification information and the class information correspond and which is stored in the device control device, and setting the measurable distance of the device according to the obtained class information; An equipment control program for causing a computer to execute the above.

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