Staff for horizontal level measurement, horizontal level measurement system, frame height adjustment system, and horizontal level adjustment method

Abstract

To provide a staff for horizontal level measurement capable of greatly shortening the work time for horizontal level adjustment, a horizontal level measurement system using the same, and a frame height adjustment system and a horizontal level adjustment method.SOLUTION: A staff 1a for reference horizontal level measurement has a transmission part 13, and the other staff 1b for reference horizontal level measurement has a reception part 15 and a difference calculation part 17. The transmission part 13 can transmit reference height information (absolute value of height) detected by a detection part 3 of the staff 1a for reference horizontal level measurement to the other staff 1b for reference horizontal level measurement. The reception part 15, on the other hand, can receive the reference height information transmitted from the staff 1a for reference horizontal level measurement. Here the transmission part 13 and reception part 15 may perform the transmission and reception by wired or wireless.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present invention relates to a horizontal level measurement staff capable of measuring the horizontal level of a measurement target, a horizontal level measurement system and a platform height adjustment system using the staff, and a horizontal level adjustment method. [Background technology]

[0002] For example, an auto level or the like is used to measure the horizontal level of concrete, a frame, etc. (For example, Patent Document 1). With the auto level, it is possible to perform horizontal adjustment within a desired range while checking the horizontal level by looking at staffs (measurement rods) placed at multiple locations. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2020-97869 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, the method of Patent Document 1 requires measuring the staff at multiple locations one by one and adjusting each measurement value to match the standard height, which takes time. For example, when adjusting the height of a platform, adjusting one location may affect the height of other locations. In that case, it may be necessary to measure and check the overall height again, and it may be necessary to repeat the adjustment to match the standard height.

[0005] On the other hand, if the heights of all the measurement sections could be grasped simultaneously in real time, it would be possible to significantly reduce the measurement time and the height adjustment time.

[0006] The present invention has been made in consideration of the above-mentioned problems, and has as its object to provide a horizontal level measurement staff that can significantly reduce the time required for adjusting the horizontal level, a horizontal level measurement system and a platform height adjustment system that use the same, and a horizontal level adjustment method. [Means for solving the problem]

[0007] In order to achieve the above-mentioned object, the first invention is a staff for measuring horizontal level, characterized in that it comprises a detection unit capable of detecting the height of a laser received by a light receiving unit, a display unit that displays height information based on the height detected by the detection unit, and at least one of a transmission unit and a reception unit that are capable of transmitting and receiving height information between horizontal level staff members.

[0008] The height measuring staff may further include a transmitting unit capable of transmitting the height information to another staff for measuring the horizontal level, and may further include a receiving unit capable of receiving the height information from another staff for measuring the horizontal level.

[0009] The horizontal level measurement staff may be capable of receiving the height information from other horizontal level measurement staffs and comparing it with the height information of the horizontal level measurement staff to calculate difference information.

[0010] The staff may have a receiving unit capable of receiving the height information from another staff for measuring horizontal level, and may be capable of transmitting the difference information to another staff for measuring horizontal level.

[0011] The horizontal level measuring staff may be capable of displaying the difference information on the display unit as the height information of the horizontal level measuring staff.

[0012] The horizontal level measuring staff may have a platform height setting unit and be capable of transmitting platform setting height information set by the platform height setting unit and detected height information to other horizontal level measuring staff.

[0013] The horizontal level measurement staff is capable of receiving the height information from other horizontal level measurement staffs and receiving platform set height information, which is a target platform height, from the other horizontal level measurement staffs. The horizontal level measurement staff may include a first difference calculation unit that compares the detected height information with the height information received from the other horizontal level measurement staffs to calculate first difference information, and a second difference calculation unit that compares the first difference information obtained by the first difference calculation unit with the platform set height information to calculate second difference information, and may be capable of displaying the second difference information on the display unit as height information.

[0014] According to the first aspect of the invention, by providing a display unit on the horizontal level measurement staff itself, a worker on-site can obtain height information of the part where the horizontal level measurement staff is installed by looking at the display unit of the horizontal level measurement staff. In addition, since height information can be sent and received between other horizontal level measurement staffs, for example, information calculated from the height information of each horizontal level measurement staff can be displayed on the horizontal level measurement staff.

[0015] For example, by displaying the difference information between the standard staff and each staff on the display unit, the displayed value can be used as the value to adjust the height without performing any additional calculations. This means that there is no need to make calculation errors and you can visually know the required adjustment height for each staff.

[0016] In this case, the staff for measuring horizontal level having a transmitting section can be used as the staff for measuring the reference horizontal level, and the staff for measuring horizontal level having a receiving section can be used as the staff for measuring the other horizontal level. In this way, the staff for measuring the reference horizontal level can transmit the height information (reference height information) of the staff for measuring the reference horizontal level to the other staff for measuring the horizontal level, and the other staff for measuring the horizontal level can receive the reference height information. Therefore, for example, the other staff for measuring horizontal level can calculate the difference with the staff for measuring the reference horizontal level and display the difference information on the display section.

[0017] In addition, if all the horizontal level measuring staffs have a receiving section and a transmitting section, for example, the reference horizontal level measuring staff can receive the height information of each of the other horizontal level measuring staffs, calculate the difference between the height information of each of the reference horizontal level measuring staffs and transmit it to each of the horizontal level measuring staffs. In this case, all the information can be consolidated in the reference horizontal level measuring staff.

[0018] In addition, the staff member who measures the horizontal level has a platform height setting unit and can set the target platform height in advance, so that it is possible to adjust not only the horizontal level but also the platform height. Therefore, for example, by adjusting the height of other parts based on the part whose height has been adjusted, the horizontal level can be adjusted for the platform at the target height.

[0019] In addition, by making it possible for the horizontal level measuring staff to receive height information and platform set height information from other horizontal level measuring staffs, it becomes possible to calculate first difference information by comparing its own height information with the height information received from the other horizontal level measuring staffs. Therefore, by placing one on the ground and the other on the platform, the current platform height can be obtained. In addition, by comparing the obtained first difference information with the platform set height information, second difference information, which is the difference between the target height and the actual height, can be obtained. Therefore, it is possible to grasp the adjustment amount for adjusting the platform to the target height.

[0020] The second invention is a platform height adjustment system using the horizontal level measurement staff according to the first invention as a second horizontal level measurement staff, the system comprising: a platform height setting unit; a first horizontal level measurement staff having platform set height information set by the platform height setting unit; a plurality of other horizontal level measurement staffs arranged at a plurality of locations on the platform; and a laser irradiation device capable of irradiating a laser in a predetermined range in the horizontal direction, the first horizontal level measurement staff being placed on the ground and capable of transmitting the platform set height information and detected height information to the other horizontal level measurement staffs, the plurality of other horizontal level measurement staffs including at least one of the second horizontal level measurement staffs, and the laser irradiation device irradiates a laser beam to each of the horizontal level measurement staffs. a first horizontal level measurement staff member and a second horizontal level measurement staff member are each capable of receiving the height information based on the height at which the laser is received; the first horizontal level measurement staff member is capable of transmitting its own height information and the platform set height information to the second horizontal level measurement staff member; the second horizontal level measurement staff member is capable of comparing the height information received from the first horizontal level measurement staff member with its own height information to calculate first difference information by the first difference calculation unit, and is also capable of comparing the platform set height information received from the first horizontal level measurement staff member with the first difference information to calculate the second difference information by the second difference calculation unit, and displaying the second difference information as height information on the display unit.

[0021] In this way, the current height of the pedestal can be grasped by having a pedestal height setting unit, being able to set a target pedestal set height in advance, and being able to allow the second horizontal level measuring staff on the pedestal to receive height information from the first horizontal level measuring staff on the ground. Also, the second horizontal level measuring staff can grasp the amount of adjustment required to adjust the pedestal to the target height by comparing the pedestal set height information with the calculated current pedestal height and collecting the difference.

[0022] The third invention is a horizontal level measurement system using the horizontal level measurement staff of the first invention, comprising a plurality of horizontal level measurement staffs arranged at a plurality of locations, and a laser irradiation device capable of irradiating a laser in a predetermined range in the horizontal direction, wherein the laser irradiation device irradiates a laser onto the plurality of horizontal level measurement staffs, and each of the horizontal level measurement staffs is capable of displaying the height information based on the height at which the laser is received on the display unit.

[0023] According to the third aspect of the invention, the height information can be displayed on the display of each horizontal level measuring staff, so there is no need to measure the height of each horizontal level measuring staff. Also, as described above, the height information can be sent and received between other horizontal level measuring staffs, so the results of comparing the height information with other horizontal level measuring staffs can be displayed on the display. Therefore, compared to the case where the actual measurement value is simply displayed, there is no need to calculate the adjustment height, and the required adjustment height can be easily known.

[0024] For example, a third invention may be a horizontal level measurement system using the horizontal level measurement staff of the first invention, comprising a plurality of horizontal level measurement staffs arranged at a plurality of locations, and a laser irradiation device capable of irradiating a laser in a predetermined range in the horizontal direction, wherein the laser irradiation device irradiates a laser onto the plurality of horizontal level measurement staffs, and each of the horizontal level measurement staffs is capable of acquiring the height information based on the height at which the laser is received, the reference horizontal level measurement staff receives the height information from the other horizontal level measurement staffs, compares it with the height information of the reference horizontal level measurement staff to calculate a difference, and transmits difference information to the other horizontal level measurement staffs, and the other horizontal level measurement staffs that have received the difference information are capable of displaying the difference information on the display unit as the height information of the other horizontal level measurement staffs.

[0025] In this way, the standard horizontal level measuring staff calculates the difference between itself and the other horizontal level measuring staffs and transmits it to each of the other horizontal level measuring staffs, and each horizontal level measuring staff can display the received difference information on the display unit. Therefore, the value displayed on the display unit is the height that needs to be adjusted, and the adjustment height can be easily grasped.

[0026] A third invention may be a horizontal level measurement system using the horizontal level measurement staff according to the first invention, comprising a plurality of horizontal level measurement staffs arranged at a plurality of locations, and a laser irradiation device capable of irradiating a laser in a predetermined range in the horizontal direction, wherein the laser irradiation device irradiates a laser onto the plurality of horizontal level measurement staffs, and each of the horizontal level measurement staffs is capable of acquiring the height information based on the height at which it receives the laser, and the reference horizontal level measurement staff transmits its own height information to the other horizontal level measurement staffs, and the other horizontal level measurement staffs, having received the height information of the reference horizontal level measurement staff, compare the height information of the reference horizontal level measurement staff with their own height information to calculate a difference, and display the difference information as the height information on the display unit.

[0027] In this way, each of the other horizontal level measurement staffs that receive height information from the reference horizontal level measurement staff can calculate the difference, and each horizontal level measurement staff can display the calculated difference information on the display unit. Therefore, the value displayed on the display unit is the height that needs to be adjusted, and the adjustment height can be easily grasped.

[0028] A third invention may be a horizontal level measurement system using the platform height adjustment system of the second invention, wherein a plurality of other horizontal level measurement staffs arranged at a plurality of locations on the platform are all the second horizontal level measurement staffs, and each of the second horizontal level measurement staffs is capable of displaying the second difference information as height information on the display unit.

[0029] In this way, the height and horizontal level of the pedestals can be adjusted by adjusting the second horizontal level measuring staffs on all of the pedestals to the target pedestal height.

[0030] A third invention may be a horizontal level measurement system that uses a mounting stand height adjustment system in the second invention, wherein one of a plurality of other horizontal level measurement staffs arranged at a plurality of locations on the mounting stand is the second horizontal level measurement staff, and the second horizontal level measurement staff transmits its own height information to the other horizontal level measurement staffs, and the other horizontal level measurement staff that receives the height information of the second horizontal level measurement staff compares the height information of the second horizontal level measurement staff with its own height information to calculate a difference, and displays the difference information as the height information on the display unit.

[0031] The fourth invention is a horizontal level adjustment method using the horizontal level measurement system according to the third invention, characterized in that the laser irradiation device irradiates a laser onto a plurality of horizontal level measurement staffs, and adjusts the height of the positioning portion of each of the horizontal level measurement staffs based on the difference information displayed on the display portion of each of the horizontal level measurement staffs.

[0032] According to the fourth aspect of the present invention, each horizontal level measuring staff calculates the difference with the height information of the reference horizontal level measuring system, and displays the difference information as the height that needs adjustment. Therefore, the current heights that need adjustment can be known collectively in real time, and height adjustment can be performed efficiently.

[0033] In this way, the height and horizontal level of the platform can be adjusted by first adjusting the height of a part of the platform to a target height, and then using the height at that position as a reference position to adjust the height of other parts on the platform to the height of the reference position. Effect of the Invention

[0034] According to the present invention, it is possible to provide a horizontal level measurement staff that can significantly reduce the work time required for adjusting a horizontal level, a horizontal level measurement system and a platform height adjustment system that use the same, and a horizontal level adjustment method. [Brief description of the drawings]

[0035] [Figure 1] FIG. 1 shows a staff 1 for measuring horizontal level. [Diagram 2] FIG. 1 is a diagram showing a horizontal level measuring system 10 using a horizontal level measuring staff 1. [Diagram 3] 3A to 3C are diagrams showing examples of displays on each display unit 5 in the horizontal level measurement system 10. [Figure 4] FIG. 1 is a diagram showing the configuration of a horizontal level measurement system 10a. [Diagram 5] 1 is a diagram showing the process of the horizontal level measurement system 10a. [Figure 6] 3A and 3B are diagrams showing examples of displays on each display unit 5 in the horizontal level measurement system 10a. [Figure 7] FIG. 2 is a diagram showing the configuration of a horizontal level measurement system 10b. [Figure 8] FIG. 2 is a diagram showing the process of the horizontal level measurement system 10b. [Figure 9] FIG. 1 is a diagram showing an overview of a horizontal level measurement system 10c. [Figure 10] FIG. 2 is a diagram showing the configuration of a horizontal level measurement system 10c. [Figure 11] FIG. 1 shows the layout of a horizontal level measurement system 10c. [Figure 12] 1 is a diagram showing the process of the horizontal level measurement system 10c. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0036] A preferred embodiment of the present invention will be described in detail below with reference to the drawings. FIG. 1 shows the basic structure of a horizontal level measuring staff 1 used to measure horizontal level. The horizontal level measuring staff 1 is mainly composed of a detection unit 3 provided on a columnar main body, a display unit 5, etc. The horizontal level measuring staff 1 can stand on its own, and an adjustment unit for height adjustment and vertical adjustment (not shown) is provided on the bottom of the main body as necessary. In addition, a scale indicating height is provided on the front of the main body as necessary. Note that the form of the horizontal level measuring staff 1 and the arrangement of the display unit 5 are not limited to the example shown in the figure.

[0037] A detection unit 3 that receives laser light is provided in a predetermined range on the front of the main body. The detection unit 3 has a light receiving section that can detect the position of the laser when it is irradiated. In other words, the detection unit 3 receives the laser with the light receiving section and can detect the position (height) at which the laser is received. The detection unit 3 does not need to be formed over the entire height of the main body, and only needs to be disposed in the range where the laser is expected to be irradiated. The height detection accuracy of the detection unit 3 may be set according to the required horizontal level accuracy, and may be the same as that of a conventional auto level, for example.

[0038] The display unit 5 displays height information based on the height detected by the detection unit 3. The display unit 5 is, for example, a digital display, and can display the height information obtained by the detection unit 3 as is or after processing. Note that the "height information" based on the height detected by the detection unit 3 in the present invention will be described in detail later.

[0039] (First embodiment) Next, we will explain the horizontal level measurement method using the horizontal level measurement staff 1. Figure 2 is a schematic diagram showing a horizontal level measurement system 10 using the horizontal level measurement staff 1. The horizontal level measurement system 10 has multiple horizontal level measurement staffs 1 and a laser irradiation device 7 that can irradiate a laser in a predetermined range in the horizontal direction.

[0040] A plurality of horizontal level measuring staffs 1 are placed at different positions in an area (A in the figure) that is to be adjusted for horizontal level. The target area A may be the ground, or may be a stand or foundation. In the example shown in the figure, horizontal level measuring staffs 1 are placed at four corners of the target area A, but the positions and number of horizontal level measuring staffs 1 are not limited to the example shown in the figure.

[0041] The laser irradiation device 7 can irradiate a laser in a predetermined direction. The laser irradiation may be capable of irradiating a laser in multiple directions (a predetermined range) simultaneously on a predetermined horizontal plane, and the irradiation unit that irradiates the spot laser light may be rotatable within a predetermined range with the vertical direction as the rotation axis. In other words, the laser irradiation device 7 can irradiate a laser at the same horizontal height to multiple horizontal level measurement staffs 1 installed in the target area A (B in the figure).

[0042] As described above, when each horizontal level measurement staff 1 receives the laser light emitted from the laser irradiation device 7 at the light receiving portion of the detection unit 3, the detection unit 3 can obtain height information according to the position where the light is received.

[0043] Fig. 3 is a diagram showing an example of the display on the display unit 5 of each horizontal level measuring staff 1 at this time. In the example shown in Fig. 3, an absolute value of height is displayed as height information. That is, in this method, the height at which the laser is received is displayed on the horizontal level measuring staff 1 at each location in the target area A. Therefore, in order to adjust all of these to a height of 410 mm, for example, it is necessary to calculate the height to be adjusted from the numerical value displayed at each location.

[0044] For example, to change "410.5 mm" to 410 mm, the part needs to be raised by 0.5 mm. Similarly, to change "412.5 mm" to 410 mm, the part needs to be raised by 2.5 mm, to change "412.0 mm" to 410 mm, the part needs to be raised by 2.0 mm, and to change "409.5 mm" to 410 mm, the part needs to be lowered by 0.5 mm. In this case, by adjusting the height while continuously irradiating with the laser irradiation device 7, it is possible to adjust the height while grasping the extent to which other parts are affected when the height of one part is adjusted.

[0045] On the other hand, this method requires that the adjustment height be calculated from the displayed height information, which may lead to calculation errors. Also, if the measured value is greater than the target value, the part is deemed "lower" by that height, but there is a risk of making a mistake in the direction of the height adjustment (whether to raise or lower the height).

[0046] Next, another horizontal level adjustment method using the horizontal level measurement staff 1 will be described. Fig. 4 is a diagram showing a part of a horizontal level measurement system 10a (the laser irradiation device 7 is not shown). In this embodiment, one of a plurality of horizontal level measurement staffs is designated as a reference horizontal level measurement staff 1a, and is distinguished from the other horizontal level measurement staffs 1b used at the same time.

[0047] Both the reference horizontal level measuring staff 1a and the other horizontal level measuring staff 1b have the same basic structure as the above-mentioned horizontal level measuring staff 1. Furthermore, the reference horizontal level measuring staff 1a has a transmitting unit 13, and the other horizontal level measuring staff 1b has a receiving unit 15 and a difference calculation unit 17.

[0048] The transmitting unit 13 can transmit the reference height information (absolute value of height) detected by the detecting unit 3 of the reference horizontal level measuring staff 1a to another horizontal level measuring staff 1b. The receiving unit 15 can receive the reference height information transmitted from the reference horizontal level measuring staff 1a. Note that transmission and reception between the transmitting unit 13 and the receiving unit 15 may be wired or wireless. In the case of wireless, for example, short-range wireless communication such as Bluetooth (registered trademark) can be applied.

[0049] 5 is a diagram showing the process of this embodiment. First, as described above, the laser irradiation device 7 irradiates a laser onto a plurality of horizontal level measurement staffs (reference horizontal level measurement staff 1a and horizontal level measurement staff 1b), and each horizontal level measurement staff obtains height information (absolute value of height) based on the height at which the laser is received (step 100). Next, the reference horizontal level measurement staff 1a transmits its own height information (reference height information) to the other horizontal level measurement staffs 1b (step 101).

[0050] Each horizontal level measuring staff 1b receives the reference height information from the reference horizontal level measuring staff 1a (step 102). Having received the reference height information, the horizontal level measuring staff 1b uses the difference calculation unit 17 to compare its own height information with the reference height information to calculate the difference (step 103). In this way, the horizontal level measuring staff 1b that has received the reference height information can compare the height information detected by its own detection unit 3 with the reference height information in the difference calculation unit 17 to calculate the difference information ((height of the horizontal level measuring staff 1b) - (height of the reference horizontal level measuring staff 1a)). In the present invention, the difference information calculated from the respective height information of the two horizontal level measuring staffs is also included in the "height information" based on the height detected by the detection unit 3.

[0051] Each horizontal level measuring staff 1b displays the calculated difference information as its own height information on the display unit 5 (step 105). The reference horizontal level measuring staff 1a may display its own reference height information (absolute value of height) on the display unit 5, or may display "0" since its own height information is the reference (i.e., the difference from the reference is 0) (step 104).

[0052] FIG. 6 shows an example of the display on the display unit 5 of each horizontal level measurement staff 1 at this time. As shown in the figure, "0 mm" is displayed on the display unit 5 of the reference horizontal level measurement staff 1a. In other words, the measurement height with the reference horizontal level measurement staff 1a becomes the reference. Meanwhile, the display unit of the other horizontal level measurement staff 1b shows the difference with the reference horizontal level measurement staff 1a. Therefore, it is not necessary to calculate the difference for each horizontal level measurement staff 1b.

[0053] The sign of the displayed numerical value indicates the direction of height adjustment at that part. For example, if "+2.5mm" is displayed, it indicates that the height of that part should be increased by +2.5mm. In this way, by indicating the direction of height adjustment, it is possible to prevent the height adjustment from being reversed by mistake. The difference information displayed on the display unit 5 may have a sign reversed, such as (height of the reference horizontal level measuring staff 1a)-(height of the horizontal level measuring staff 1b). In this case, the current height relative to the target height can be grasped. The sign of such a display may be switched by the user's settings. Instead of a sign, it may be displayed in words to indicate whether the height is high or low, such as "2.5mm high" or "2.5mm low".

[0054] Thus, according to this embodiment, the laser irradiation device 7 irradiates a laser onto multiple horizontal level measurement staffs 1, etc., and each horizontal level measurement staff 1 can display height information (including difference information) based on the height at which it received the laser on the display unit 5. This makes it possible to grasp the overall height all at once, and to know the height information of the part (the difference from the reference horizontal level measurement staff 1a) in real time at the location where the height is adjusted.

[0055] Moreover, the reference horizontal level measuring staff 1a has a transmitter 13 capable of transmitting height information to the other horizontal level measuring staff 1b, and the other horizontal level measuring staff 1b has a receiver 15 capable of receiving height information from the reference horizontal level measuring staff 1a. Thus, by being provided with at least one of the transmitter 13 and the receiver 15, the horizontal level measuring staffs can transmit and receive height information at a predetermined interval.

[0056] In addition, the horizontal level measurement staff 1b receives height information from the reference horizontal level measurement staff 1a, and compares it with the height information of the horizontal level measurement staff 1b to calculate differential information and display it on the display unit 5 as its own height information.

[0057] In this way, by knowing the adjustment height at the placement section of each horizontal level measurement staff 1b based on the difference information displayed on the display section 5 of each horizontal level measurement staff 1b, height adjustment can be easily performed.

[0058] Also, for example, if you try to level the table using a level measuring staff at four points according to a preset height, as in the past, you need to adjust the height at all four points. Also, when you adjust the height at one point, the height of the other three points may change slightly. For this reason, it takes time to adjust the height of all parts to the set height.

[0059] In contrast, in this embodiment, one location is set to the reference height, so height adjustment is required at three locations, and the number of locations that may be affected when adjusting the height at one location is reduced to two. This makes horizontal adjustment easier than in the past.

[0060] In the above-described embodiment, only the transmitter 13 is provided on the reference horizontal level measurement staff 1a, and only the receiver 15 is provided on the horizontal level measurement staff 1b. However, the transmitter 13 and the receiver 15 may be provided on all horizontal level measurement staffs.

[0061] 7 is a diagram showing a part of the horizontal level measurement system 10b. In the horizontal level measurement system 10b, both the reference horizontal level measurement staff 1a and the horizontal level measurement staff 1b have a transmitting unit 13 and a receiving unit 15. In addition, the reference horizontal level measurement staff 1a is provided with a difference calculation unit 17. Note that the reference horizontal level measurement staff 1a and the horizontal level measurement staff 1b are configured completely identically, and an arbitrary horizontal level measurement staff can be set as the reference horizontal level measurement staff 1a by setting each device, and the difference calculation unit 17 does not have to function in the remaining horizontal level measurement staffs 1b.

[0062] 8 is a diagram showing the steps of this embodiment. First, as described above, the laser irradiation device 7 irradiates a laser onto multiple horizontal level measurement staffs (reference horizontal level measurement staff 1a and horizontal level measurement staff 1b). Each horizontal level measurement staff obtains height information based on the height at which it receives the laser (step 200).

[0063] Each horizontal level measuring staff 1b transmits its own height information to the reference horizontal level measuring staff 1a (step 201), and the reference horizontal level measuring staff 1a receives each of the height information from each of the other horizontal level measuring staffs 1b (step 202). Each horizontal level measuring staff 1b transmits its own identification information and height information in association with each other, and the reference horizontal level measuring staff 1a receives the height information for each of the identification information.

[0064] Next, the reference horizontal level measuring staff 1a compares its own height information with the height information received from each horizontal level measuring staff 1b by the difference calculation unit 17 to calculate the difference (step 203). The reference horizontal level measuring staff 1a may store the reference height information, the height information received from each horizontal level measuring staff 1b, and each calculated difference information in the storage unit as necessary.

[0065] Next, the reference horizontal level measuring staff 1a transmits the difference information to each of the horizontal level measuring staffs 1b in association with the identification information of each of the horizontal level measuring staffs 1b (step 204). The horizontal level measuring staff 1b that receives the difference information (step 205) displays the difference information on the display unit 5 as the own height information of the horizontal level measuring staff 1b (step 207). The reference horizontal level measuring staff 1a may display its own reference height information (absolute value of height) on the display unit 5, or may display "0" since it is the reference (step 206).

[0066] In this embodiment, both the reference horizontal level measuring staff 1a and other horizontal level measuring staffs 1b can transmit and receive information. Therefore, even if the target area A is wide and the distance between the reference horizontal level measuring staff 1a and some horizontal level measuring staffs 1b is too far away to perform short-distance wireless communication, the height information (difference information) can be transmitted and received to and from the reference horizontal level measuring staff 1a via the other horizontal level measuring staffs 1b. That is, the horizontal level measuring staff 1b can not only transmit its own information to the reference horizontal level measuring staff 1a, but also receive information from other horizontal level measuring staffs 1b and transmit information to further horizontal level measuring staffs 1b.

[0067] In addition, since the reference horizontal level measuring staff 1a can store information on all other horizontal level measuring staffs 1b in the memory, for example, the height information (difference information) of each horizontal level measuring staff 1b before and after work can be collectively transmitted or written to another terminal, etc. Therefore, it can be used as the height adjustment work result to be written in the work report, etc.

[0068] Also, a warning unit may be provided in the reference horizontal level measurement staff 1a. For example, when the difference information with some of the horizontal level measurement staffs 1b exceeds a predetermined range, the warning unit may issue a warning (such as sound or light). Similarly, a warning unit may be provided in all of the horizontal level measurement staffs 1b. For example, when the difference information exceeds a predetermined range, the warning unit of the horizontal level measurement staff 1b may issue a warning. Also, when the difference information of all of the horizontal level measurement staffs 1b falls within the predetermined range, the display unit of the reference horizontal level measurement staff 1a may display that the height adjustment has been completed.

[0069] 3, first, the actual measurement values ​​may be displayed on all the display units 5, and then any one of the horizontal level measuring staffs 1 may be set as the reference horizontal level measuring staff 1a after viewing the values ​​on the display units 5. In other words, the reference horizontal level measuring staff 1a may be set by selecting it from any of the horizontal level measuring staffs 1 installed in the target area A.

[0070] In the above embodiment, the reference horizontal level measuring staff 1a and the horizontal level measuring staff 1b may be installed in different locations. For example, the reference horizontal level measuring staff 1a may be placed on an existing structure, and the other horizontal level measuring staff 1b may be installed on a platform. In this case, the height of each part of the platform can be adjusted with a spacer or the like so that it is the same height as the existing structure. In other words, the platform can be adjusted to a predetermined height so that it is horizontal.

[0071] Second embodiment Next, a second embodiment will be described. In the first embodiment, a plurality of horizontal level measuring staffs are placed on the same installation surface on the ground or a stand, etc., to measure the horizontal level of the installation surface, but in this embodiment, for example, the horizontal level of the stand is adjusted and the height of the stand from the ground is also adjusted.

[0072] 9 is a diagram showing an overview of a horizontal level measurement system 10c using a platform height adjustment system 20 according to this embodiment. The platform height adjustment system 20 uses a horizontal level measurement staff 1c (first horizontal level measurement staff) installed on the ground, and a plurality of horizontal level measurement staffs 1d (second horizontal level measurement staffs) arranged at a plurality of locations on the platform 19 to adjust the horizontal level of the platform 19. Both the horizontal level measurement staff 1c and the horizontal level measurement staff 1d have substantially the same basic structure as the horizontal level measurement staff 1 described above.

[0073] 10 is a diagram showing the configurations of the horizontal level measurement staff 1c and the horizontal level measurement staff 1d. The horizontal level measurement staff 1c has a configuration similar to the reference horizontal level measurement staff 1a described above, but differs in that it has a platform height setting unit 21.

[0074] The platform height setting unit 21 is used by the user to set a target height of the target platform 19 in advance. For example, the platform set height information, which is the target height of the platform 19, can be set by the input unit and communication unit that are the platform height setting unit 21. That is, the horizontal level measuring staff 1c holds the platform set height information set by the platform height setting unit 21. In addition, the horizontal level measuring staff 1c can transmit the height information detected by the detection unit 3 and the platform set height information to another horizontal level measuring staff 1d.

[0075] On the other hand, the horizontal level measuring staff 1d has a configuration substantially similar to the reference horizontal level measuring staff 1a, etc., but differs in that it has a first difference calculation section 17a and a second difference calculation section 17b.

[0076] The horizontal level measuring staff 1d can receive the height information and the mount setting height information transmitted from the horizontal level measuring staff 1c. The first difference calculation unit 17a can compare the height information of the horizontal level measuring staff 1c with the height information of the horizontal level measuring staff 1d itself to calculate the difference (first difference information).

[0077] 11 is a diagram showing the arrangement of the horizontal level measurement staff 1c and the horizontal level measurement staff 1d. As described above, the horizontal level measurement staff 1c is placed on the ground 23, and the horizontal level measurement staff 1d is placed on the stand 19 installed on the ground 23.

[0078] When a laser is irradiated horizontally by the laser irradiation device 7 (not shown), the light receiving position (G in the figure) of the horizontal level measurement staff 1c and the light receiving position (H in the figure) of the horizontal level measurement staff 1d are on the same horizontal plane. Therefore, the height (E in the figure) of the platform 19 can be calculated by taking the difference (CD) between the light receiving height (C in the figure) of the horizontal level measurement staff 1c and the light receiving height (D in the figure) of the horizontal level measurement staff 1d.

[0079] That is, the horizontal level measuring staff 1d can compare the height information detected by itself with the height information received from the other horizontal level measuring staff 1c, and calculate the first difference information by the first difference calculation unit 17a. Therefore, the first difference information calculated at this time is the height information of the platform 19 at the location where the horizontal level measuring staff 1d is installed.

[0080] In addition, the second difference calculation unit 17b (Figure 10) in the horizontal level measurement staff 1d can calculate second difference information by comparing the first difference information calculated by the first difference calculation unit 17a with the platform setting height information received by the receiving unit 15.

[0081] 11, if the target height of the gantry 19 (gantry set height information) is F, then the required amount of height adjustment of the gantry 19 can be calculated by taking the difference (FE) between the calculated height of the gantry 19 (first difference information, E in the figure) and the target height of the gantry 19 (F in the figure). That is, the second difference information calculated by the second difference calculation unit 17b becomes height information indicating the required adjustment of the gantry 19 at the relevant portion.

[0082] Furthermore, the horizontal level measuring staff 1d can display the height that needs to be adjusted (second difference information) on the display unit 5. By adjusting the height of the stand 19 based on the display on the display unit 5, the relevant part of the stand 19 can be adjusted to the target height. In this way, by using the horizontal level measuring staff 1c and the horizontal level measuring staff 1d, a height adjustment system for the stand 19 can be obtained.

[0083] Next, a method of using the horizontal level measurement system 10c will be described. Fig. 12 is a diagram showing the steps of this embodiment. First, as described above, mount setting height information is input to the horizontal level measurement staff 1c (step 300). The mount setting height information may be input by the user as a number, or may be transferred from another device or recording medium.

[0084] Next, the laser irradiation device 7 irradiates the horizontal level measurement staff 1c and the horizontal level measurement staff 1d with a laser. That is, the horizontal level measurement staff 1c placed on the ground 23 and the horizontal level measurement staff 1d placed on the stand 19 are irradiated with a laser of the same horizontal plane. Each of the horizontal level measurement staffs 1c and 1d acquires height information based on the height at which the laser is received (step 301).

[0085] The horizontal level measuring staff 1c transmits its own height information and platform setting height information to the horizontal level measuring staff 1d (step 302), and the horizontal level measuring staff 1d receives the height information and platform setting height information from the horizontal level measuring staff 1c (step 303).

[0086] Next, the horizontal level measuring staff 1d uses the first difference calculation unit 17a to compare its own height information with the height information received from the horizontal level measuring staff 1c to calculate first difference information (step 304). Note that the horizontal level measuring staff 1d may store the height information received from the horizontal level measuring staff 1c, the mount setting height information, and the calculated first difference information in a storage unit as necessary.

[0087] Next, the horizontal level measuring staff 1d compares the first difference information calculated by the first difference calculation unit 17a with the platform setting height information received from the horizontal level measuring staff 1c to calculate second difference information (step 305).The horizontal level measuring staff 1d also causes the display unit 5 to display the second difference information (step 306).

[0088] The horizontal level measurement staff 1d may be configured to switch the display of its own height information, the first difference information, or the second difference information on the display unit 5. In other words, the first difference information and the second difference information calculated using the height information detected by the detection unit 3 of each horizontal level measurement staff are also included in the "height information" based on the height detected by the detection unit 3.

[0089] In the above embodiment, all of the multiple horizontal level measurement staffs arranged at multiple locations on the stand 19 are horizontal level measurement staffs 1d. That is, at each part of the stand 19, each horizontal level measurement staff 1d can display the second difference information at that part on the display unit 5. Therefore, by adjusting the height of each part of the stand 19 so that all the indications of each horizontal level measurement staff 1d are 0 (that is, so that the target height of the stand 19 and the actually measured height of the stand 19 match with respect to the horizontal level measurement staff 1c at all parts), the horizontal level of the stand 19 adjusted to the desired height can be adjusted.

[0090] On the other hand, only one of the multiple horizontal level measurement staffs arranged at multiple locations on the stand 19 may be the horizontal level measurement staff 1d. That is, one horizontal level measurement staff 1d may be arranged on the stand 19, and the remaining locations may be, for example, the above-mentioned horizontal level measurement staffs 1b.

[0091] In this case, first, the height of the stand 19 at the location where the horizontal level measuring staff 1d is installed is adjusted so that the second difference information of the horizontal level measuring staff 1d becomes 0. From this state, the horizontal level measuring staff 1d is made to function as the reference horizontal level measuring staff 1a in the first embodiment.

[0092] That is, the horizontal level measuring staff 1d has a transmitting unit in addition to the configuration shown in Fig. 10, and transmits its own height information to the other horizontal level measuring staff 1b. The other horizontal level measuring staff 1b, which receives the height information of the horizontal level measuring staff 1d, compares the height information of the horizontal level measuring staff 1d with its own height information, calculates the difference, and displays the difference information as height information on each display unit 5.

[0093] From this state, the height of each part of the stand 19 is adjusted so that the height information of each horizontal level measuring staff 1b matches the height information of the reference horizontal level measuring staff 1d. In this way, the horizontal level of each part of the other horizontal level measuring staffs 1b can be adjusted using one horizontal level measuring staff 1d as the reference.

[0094] In this manner, in the horizontal level measurement system 10c of this embodiment, at least one of the multiple horizontal level measurement staffs on the stand 19 is the horizontal level measurement staff 1d, and by including the stand height adjustment system 20 described above, not only the horizontal level of the stand 19 but also the height of the stand 19 can be adjusted to a desired height.

[0095] The horizontal level measuring staff 1b may be able to display actual measured values ​​on the display unit 5, instead of displaying difference information with the reference horizontal level measuring staff 1d on the display unit 5. The horizontal level measuring staff 1d may transmit height information received from the horizontal level measuring staff 1c to another horizontal level measuring staff 1b, and the horizontal level measuring staff 1b may display difference information between the height information of the horizontal level measuring staff 1c and its own height information (i.e., the platform height of the horizontal level measuring staff 1b) on the display unit 5. These displays may be switchable.

[0096] Although the preferred embodiment of the present invention has been described above with reference to the accompanying drawings, the present invention is not limited to such an example. It is clear that a person skilled in the art can come up with various modified or altered examples within the scope of the technical ideas disclosed in this application, and it is understood that such examples also naturally belong to the technical scope of the present invention. [Explanation of symbols]

[0097] 1, 1b, 1c, 1d...Level measuring staff 1a………Staff for measuring reference horizontal level 3. Detection section 5……Display section 7...Laser irradiation device 10, 10a, 10b, 10c...Horizontal level measurement system 13...Transmitter 15....Receiver 17……Difference calculation section 17a……First difference calculation section 17b……Second difference calculation section 19.... Stand 20………Frame height adjustment system 21: Stand height setting section 23……ground

Claims

1. A staff for measuring horizontal level, a detection unit capable of detecting the height of the laser beam received by the light receiving unit; a display unit that displays height information based on the height detected by the detection unit; A staff for measuring horizontal level, comprising at least one of a transmitting section and a receiving section capable of transmitting and receiving height information between horizontal level staffs.

2. 2. A horizontal level measuring staff according to claim 1, further comprising a transmitting section capable of transmitting said height information to another horizontal level measuring staff.

3. 2. A horizontal level measuring staff according to claim 1, further comprising a receiving section capable of receiving the height information from another horizontal level measuring staff.

4. A horizontal level measurement staff as described in claim 3, characterized in that the horizontal level measurement staff is capable of receiving the height information from other horizontal level measurement staffs and comparing it with the height information of the horizontal level measurement staff to calculate difference information.

5. 5. A horizontal level measuring staff as claimed in claim 4, further comprising a transmitting unit capable of transmitting the height information to another horizontal level measuring staff, and capable of transmitting the difference information to another horizontal level measuring staff.

6. 5. The horizontal level measuring staff according to claim 4, characterized in that the horizontal level measuring staff is capable of displaying the difference information on the display unit as the height information of the horizontal level measuring staff.

7. The horizontal level measurement staff according to claim 2, characterized in that the horizontal level measurement staff has a platform height setting unit and is capable of transmitting platform setting height information set by the platform height setting unit and detected height information to other horizontal level measurement staffs.

8. The horizontal level measuring staff is capable of receiving the height information from other horizontal level measuring staffs and receiving platform setting height information, which is a target platform height, from the other horizontal level measuring staffs; the horizontal level measuring staff includes a first difference calculation unit that calculates first difference information by comparing the detected height information with the height information received from another horizontal level measuring staff; a second difference calculation unit that calculates second difference information by comparing the first difference information obtained by the first difference calculation unit with the gantry set height information; Equipped with 4. The staff for measuring horizontal level according to claim 3, wherein the second difference information is displayable on the display unit as height information.

9. A platform height adjustment system using the horizontal level measuring staff according to claim 8 as a second horizontal level measuring staff, a first horizontal level measuring staff having a platform height setting unit and platform set height information set by the platform height setting unit; A plurality of other horizontal level measuring staves disposed at a plurality of locations on the platform; a laser irradiation device capable of irradiating a laser beam in a predetermined range in a horizontal direction; having The first horizontal level measuring staff is installed on the ground and is capable of transmitting the platform setting height information and the detected height information to other horizontal level measuring staffs; the plurality of other horizontal level measuring staves includes at least one second horizontal level measuring staves; The laser irradiation device irradiates a laser onto each of the horizontal level measurement staffs, and each of the horizontal level measurement staffs can obtain the height information based on the height at which the laser is received; The first horizontal level measuring staff is capable of transmitting the height information of the first horizontal level measuring staff and the platform setting height information to the second horizontal level measuring staff, a second horizontal level measurement staff that compares the height information received from the first horizontal level measurement staff with its own height information to calculate first difference information using the first difference calculation unit, and that compares the platform set height information received from the first horizontal level measurement staff with the first difference information to calculate the second difference information using the second difference calculation unit, and is capable of displaying the second difference information as height information on the display unit.

10. A horizontal level measurement system using the horizontal level measurement staff according to any one of claims 1 to 8, A plurality of horizontal level measuring staffs arranged at a plurality of locations; a laser irradiation device capable of irradiating a laser beam in a predetermined range in a horizontal direction; having The laser irradiation device irradiates a laser onto the plurality of horizontal level measuring staffs; A horizontal level measurement system characterized in that each of the horizontal level measurement staff members is capable of displaying the height information based on the height at which the laser is received on the display unit.

11. A horizontal level measurement system using the horizontal level measurement staff according to claim 5, A plurality of horizontal level measuring staffs arranged at a plurality of locations; a laser irradiation device capable of irradiating a laser beam in a predetermined range in a horizontal direction; having The laser irradiation device irradiates a laser onto a plurality of horizontal level measurement staffs, and each of the horizontal level measurement staffs can obtain the height information based on the height at which the laser is received; The reference horizontal level measurement staff receives the height information from the other horizontal level measurement staffs, compares it with the height information of the reference horizontal level measurement staff to calculate a difference, and transmits difference information to the other horizontal level measurement staffs; A horizontal level measurement system characterized in that another horizontal level measurement staff that receives the difference information is able to display the difference information on the display unit as the height information of the other horizontal level measurement staff.

12. A horizontal level measurement system using the horizontal level measurement staff according to claim 6, A plurality of horizontal level measuring staffs arranged at a plurality of locations; a laser irradiation device capable of irradiating a laser beam in a predetermined range in a horizontal direction; having The laser irradiation device irradiates a laser onto a plurality of horizontal level measurement staffs, and each of the horizontal level measurement staffs can obtain the height information based on the height at which the laser is received; The horizontal level measuring staff serving as a reference transmits the height information of itself to the other horizontal level measuring staffs; A horizontal level measurement system characterized in that the other horizontal level measurement staffs that receive the height information of the reference horizontal level measurement staff are able to compare the height information of the reference horizontal level measurement staff with their own height information to calculate a difference and display the difference information as the height information on the display unit.

13. A horizontal level measurement system using the platform height adjustment system according to claim 9, The other horizontal level measuring staffs arranged at the plurality of locations on the platform are all the second horizontal level measuring staffs, A horizontal level measurement system, characterized in that each of the second horizontal level measurement staffs is capable of displaying the second difference information as height information on the display unit.

14. A horizontal level measurement system using the platform height adjustment system according to claim 9, Among the plurality of other horizontal level measuring staffs arranged at a plurality of locations on the platform, one is the second horizontal level measuring staff, The second horizontal level measuring staff transmits the height information of itself to the other horizontal level measuring staffs, A horizontal level measurement system characterized in that the other horizontal level measurement staff that receives the height information of the second horizontal level measurement staff is able to compare the height information of the second horizontal level measurement staff with its own height information to calculate a difference and display the difference information as the height information on the display unit.

15. A horizontal level adjustment method using the horizontal level measurement system according to any one of claims 11 to 14, comprising the steps of: The laser irradiation device irradiates a laser onto the plurality of horizontal level measuring staffs; A horizontal level adjustment method comprising adjusting the height of a placement portion of each of the horizontal level measurement staffs based on the difference information displayed on the display portion of each of the horizontal level measurement staffs.

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