Dimensional Measuring Device

Abstract

This dimension measurement device includes: a measurement terminal in which a wire, a length measurement sensor, a computation device, and a display device are housed in a body case; and a management device that is connected to the measurement terminal by a communication network and includes a processor and memory. Measurement content information of a rail bracket as a measurement object is stored in the memory. The processor transmits measurement instruction information to the measurement terminal. The measurement instruction information is information of a measurement location next to be measured that is extracted from the measurement content information. The computation device displays the measurement instruction information in the display device, receives operation of the wire by an operator and computes a length measurement value, and transmits measurement result information in which the length measurement value is associated with the measurement instruction information to the management device. The management device stores the received measurement result information in the memory and transmits the next measurement instruction information to the measurement terminal.

Description

[Technical field]

[0001] The present disclosure relates to a dimension measuring device, and more particularly to a dimension measuring device used for measuring dimensions during elevator renovation. [Background technology]

[0002] Patent Document 1 discloses a technology related to a steel tape measure reader that enables reading of steel tape measures. In this technology, a signal corresponding to the amount of removal of the steel tape measure measured by a pulse length measuring device is received, and the measured dimension is calculated. The calculated measured dimension is transferred to a computer. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 8-285542 Summary of the Invention [Problem to be solved by the invention]

[0004] In elevator renovation work, the dimensions of multiple existing rail brackets may be measured to evaluate the strength of the rail brackets. When workers use a convex scale or the like to measure the dimensions of multiple rail brackets, they must associate the measured values ​​with the measurement points of the objects to be measured and store them, which places a heavy burden on the workers. The technology described in Patent Document 1 reduces the burden on workers in that the measurement values ​​are read by a machine, but the workers must still associate the measured values ​​with the measurement points, which still places a heavy burden on the workers.

[0005] The present disclosure has been made to solve the above-mentioned problems, and aims to provide a dimension measuring device that can reduce the workload of an operator by clearly indicating the measurement points to the operator. [Means for solving the problem]

[0006] The dimension measuring device of the present disclosure is a dimension measuring device used by an operator to measure the dimensions of a measurement object. The measurement object includes a plurality of existing rail brackets for fixing elevator rails. The dimension measuring device includes a wire that can be pulled out from a pull-out port provided in a main body case, a length measuring sensor that outputs an electric signal according to the amount of the wire pulled out, a calculation device that calculates a measurement value corresponding to the amount of the wire pulled out based on the electric signal, a display device that displays the measurement value, a memory that stores measurement content information including information on one or more measurement points of the measurement object, and a processor coupled to the memory. The measurement content information includes information for identifying each rail bracket of the plurality of rail brackets, information for identifying the measurement points of each rail bracket, and information that determines the measurement order of the measurement points. The calculation device and the processor cooperate to display measurement instruction information on the display device that extracts information on the measurement point to be measured next from the measurement content information, calculates the measurement value in response to the operation of the wire by the operator, and stores measurement result information in the memory that associates the measurement value with the measurement instruction information. The dimension measuring device includes a measuring terminal having a wire, a length measuring sensor, a calculation device, and a display device stored in a main body case, and a management device connected to the measuring terminal via a communication network and including a processor and a memory, wherein the management device is a portable mobile terminal equipped with a mobile terminal display device, and the processor is configured to execute an evaluation process that performs calculations to evaluate each rail bracket of a plurality of rail brackets based on the measurement result information, store evaluation result information including the evaluation results of the evaluation process in memory, and display the evaluation result information on the mobile terminal display device. The processor is also configured to perform a strength calculation for each rail bracket of the plurality of rail brackets in the evaluation process. Effect of the Invention

[0007] According to the dimension measuring device of the present disclosure, measurement instruction information indicating the next measurement location to be measured is displayed on the display device of the dimension measuring device used by the worker. With this type of control, the worker can efficiently measure the next measurement location while referring to the display device. Furthermore, since the measurement results are stored in memory in association with the measurement instruction information, there is no need for the worker to record them separately. In this way, according to the dimension measuring device of the present disclosure, the workload of the worker in measuring the dimensions of the measurement object is reduced. [Brief description of the drawings]

[0008] [Figure 1] 1 is a configuration diagram of a dimension measuring device according to an embodiment; [Diagram 2] 3 is a block diagram showing an example of an internal configuration of a measurement terminal; FIG. [Diagram 3] FIG. 4 is a diagram illustrating an example of a display on a display device. [Figure 4] 2 is a block diagram showing an example of an internal configuration of a management device; [Diagram 5] 2 is a functional block diagram showing functions realized by a processor of the management device executing a program. FIG. [Figure 6] 13 is an example of an intensity calculation processing screen displayed on a display device. [Figure 7] FIG. 13 is a diagram for explaining a method for measuring an elevator rail bracket. [Figure 8] 10 is a flowchart showing a processing routine executed by a measurement terminal in a measurement operation. [Figure 9] 11 is a diagram for explaining a method in which an operator measures a measurement point using a measurement terminal. FIG. [Figure 10] 5 is a flowchart showing a processing routine executed by the management device in a measurement operation. [Figure 11] FIG. 13 is a diagram illustrating a modification of the hardware resources of the control device. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] Hereinafter, an embodiment will be described with reference to the drawings. In addition, elements common to the various drawings are given the same reference numerals, and duplicated explanations will be omitted.

[0010] Embodiment 1. Configuration of the dimension measuring device according to the embodiment FIG. 1 is a configuration diagram of a dimension measuring device according to an embodiment. The dimension measuring device 100 is a device that measures the dimensions of a measurement object using a handheld measuring terminal 20. The measurement object is, for example, an existing rail bracket that is measured by a worker during elevator renovation work. The measuring terminal 20 is connected to a management device 40 via a communication network 10. Typically, the communication network 10 is exemplified by short-range wireless communication such as Bluetooth (registered trademark) or Wi-Fi (registered trademark). The management device 40 comprehensively manages the dimensional measurement of the measurement object by the measuring terminal 20. Examples of such a management device 40 include a tablet and a smartphone.

[0011] When carrying out elevator renovation work, it is required to measure the dimensions of multiple existing rail brackets in order to calculate the strength of the rail brackets. An elevator has multiple rails for the car and multiple rails for the counterweight. Each rail is fixed to a wall surface or the like by multiple rail brackets. When the measurement object is one or multiple rail brackets, the management device 40 stores measurement content information including the measurement contents of each rail bracket that is the measurement object in advance. The measurement content information includes information for identifying each rail bracket that is the measurement object, information for identifying the measurement location of each rail bracket, and information that determines the measurement order of each measurement location. Typically, the measurement content information includes a rail category that identifies the type of rail, an ID that identifies the rail bracket, a category that identifies the type of rail bracket, and a dimension name that indicates the measurement location. The management device 40 transmits measurement instruction information that extracts information on the measurement location to be measured next from the measurement content information to the measurement terminal 20.

[0012] Furthermore, the management device 40 receives and stores measurement result information including the measurement results of the measurement object from the measurement terminal 20. The measurement result information includes information in which the measurement result is associated with measurement instruction information. Typically, the measurement result information includes the rail classification, ID, classification, and dimension name included in the measurement instruction information, as well as the measurement result corresponding to the measurement location. The configurations and functions of the measurement terminal 20 and the management device 40 will be described in more detail below.

[0013] 2. Configuration of the measuring terminal according to the embodiment The measuring terminal 20 has a main case 21. The main case 21 is large enough for an operator to hold and work with it in one hand. The measuring terminal 20 has an outlet 22 for the wire 24 on one end surface in the longitudinal direction. Typically, the outlet 22 has a truncated cone shape tapered toward the tip. The wire 24 is a length of material that is pulled out when an operator performs dimensional measurement. The wire 24 is wound around a wire feed-out rotation mechanism 29 disposed in the main case 21 so as to be pulled out. The wire feed-out rotation mechanism 29 may include a biasing mechanism that biases the wire 24 in the winding direction. The wire feed-out rotation mechanism 29 may also include a holding mechanism that holds the pulled-out wire 24.

[0014] A tip member 26 is provided at the tip of the wire 24. The tip member 26 has a tip surface formed of a flat surface. The tip member 26 may be magnetized so that the tip surface sticks to the metal surface of the object to be measured. The wire 24 is pulled out by an operator pulling the tip member 26. Typically, the pull-out width from the tip surface 26a of the tip member 26 to the tip 22a of the pull-out port 22 corresponds to the actual length measurement value. The operator performs the measurement by aligning the tip surface 26a with one end of the measurement location of the object to be measured and aligning the tip 22a with the other end of the measurement location.

[0015] 2 is a block diagram showing an example of the internal configuration of the measurement terminal 20. The measurement terminal 20 includes a length measuring sensor 23, a computing device 25, a communication device 27, a transmission switch 28, and a display device 30.

[0016] The length measuring sensor 23 is attached to the wire feed-out rotation mechanism 29 inside the main body case 21. The length measuring sensor 23 includes a rotary encoder that outputs a pulse signal, which is an electric signal corresponding to the rotation of the wire feed-out rotation mechanism 29. When the worker pulls out the wire 24, the length measuring sensor 23 outputs a pulse signal corresponding to the amount of the wire 24 that has been pulled out, that is, the measured length value. The output pulse signal is sent to the calculation device 25.

[0017] The arithmetic device 25 is a computer mounted on the measurement terminal 20. The arithmetic device 25 is connected to the length measurement sensor 23, the communication device 27, the transmission switch 28, and the display device 30. The arithmetic device 25 includes one or more processors 25a and one or more memories 25b coupled to the processor 25a. The memory 25b stores one or more programs 25c executable by the processor 25a.

[0018] The processor 25a executes the program 25c, thereby realizing various processes by the processor 25a. The program 25c includes, for example, a calculation program for calculating a length measurement value from a pulse signal of the length measurement sensor 23. The calculation device 25 executes the calculation program to calculate the length measurement value from the pulse signal at any time. Typically, the calculation device 25 calculates the amount of change in the pulled-out amount of the wire 24 based on the change in the pulse signal in units of 0.1 mm, and holds it as the current value of the length measurement value. The measurement range of the measurement terminal 20 is, for example, from 0.0 mm to 1000.0 mm.

[0019] The transmission switch 28 is a switch that an operator operates when transmitting a length measurement value to the management device 40. The transmission switch 28 is installed, for example, on the upper surface of the main body case 21. When the transmission switch 28 is pressed, an ON signal is sent to the calculation device 25. The calculation device 25 generates measurement result information in which the measurement value at the time of receiving the ON signal is associated with measurement instruction information, and transmits the measurement result information to the management device 40.

[0020] The communication device 27 is a device that controls wireless communication between the measurement terminal 20 and the outside. The communication device 27 communicates with the management device 40 via the communication network 10. The measurement result information processed by the arithmetic device 25 is transmitted to the management device 40 using the communication device 27. In addition, the measurement position information processed by the management device 40 is taken into the arithmetic device 25 using the communication device 27.

[0021] The display device 30 is an LCD (Liquid Crystal Display) and is installed, for example, on the top surface of the main body case 21. Fig. 3 is a diagram showing an example of the display of the display device. In the example shown in this figure, the display device 30 displays the measurement value (mm) calculated by the calculation device 25. The display device 30 also displays the measurement instruction information acquired from the management device 40.

[0022] 3. Configuration of the Management Device of the Embodiment 4 is a block diagram showing an example of the internal configuration of the management device. The management device 40 is a portable mobile terminal, and is carried, for example, by an operator who carries the measurement terminal 20. The management device 40 includes a control device 42, a communication device 46, and a display device 48.

[0023] The communication device 46 is a device that controls communication between the management device 40 and the outside. The communication device 46 mediates communication between the management device 40 and the measurement terminal 20 via the communication network 10. The communication device 46 also receives measurement result information via the communication network 10. The information processed by the management device 40 is transmitted to the measurement terminal 20 using the communication device 46. The information processed by the measurement terminal 20 is taken into the management device 40 using the communication device 46.

[0024] The control device 42 includes one or more processors 42a and one or more memories 42b coupled to the processor 42a. The memory 42b stores one or more programs 42c executable by the processor 42a and various data 42d related thereto. Examples of the data 42d stored in the memory include measurement content information, measurement result information, and evaluation result information described below.

[0025] The processor 42a executes the program 42c, thereby realizing various processes by the processor 42a. Fig. 5 is a functional block diagram showing functions realized by the processor of the management device executing the program. As shown in Fig. 5, the processor 42a includes a transmission processing unit 421 for transmitting measurement instruction information, a storage processing unit 422 for storing measurement result information, and an evaluation processing unit 423 for evaluating the rail bracket using the measurement result. Below, the functions of the processor 42a will be described with reference to Fig. 1 as well, taking as an example a case where an operator measures the dimensions of a rail bracket.

[0026] The transmission processing unit 421 is a functional block having a function of transmitting measurement instruction information to the measurement terminal 20 via the communication network 10. The measurement instruction information is information necessary to clearly indicate the next measurement location to the worker. The memory 42b stores measurement content information of the rail bracket of the elevator to be repaired in advance. The transmission processing unit 421 transmits measurement instruction information of the measurement location to be measured next from the measurement content information to the measurement terminal 20. Typically, upon receiving measurement result information from the measurement terminal 20, the transmission processing unit 421 generates and transmits measurement instruction information of the measurement location to be measured next from the measurement content information stored in the memory 42b.

[0027] The storage processing unit 422 is a functional block having a function of storing the measurement result information received from the measurement terminal 20 in the memory 42b. The evaluation processing unit 423 is a functional block having a function of evaluating the performance of the rail bracket using the measurement results stored in the memory 42b. Typically, the evaluation processing unit 423 automatically performs strength calculation of the rail bracket and stores evaluation result information including the evaluation result in the memory 42b. Furthermore, the evaluation processing unit 423 displays the evaluation result information on the display device 48. FIG. 6 is an example of a strength calculation processing screen displayed on the display device. In FIG. 6, an example in which the evaluation result information and the evaluation result information are displayed is illustrated. There is no limitation on the calculation method of the strength calculation. That is, the strength calculation here can adopt a known strength calculation method using the measurement results of the rail bracket.

[0028] 4. Specific examples of use of dimension measuring devices Next, a specific example of measuring the dimensions of an elevator rail bracket using the dimension measuring device 100 of this embodiment will be described. FIG. 7 is a diagram for explaining a method of measuring an elevator rail bracket. In the example shown in FIG. 7, a rail bracket 54 for attaching a rail 52 to a wall surface is illustrated among a plurality of rails and rail brackets equipped in an elevator 50. The memory 42b of the management device 40 stores measurement content information that specifies the measurement points and measurement order when measuring a plurality of rail brackets equipped in the elevator 50. The management device 40 generates measurement instruction information that indicates the measurement point to be measured next and transmits it to the measurement terminal 20. The worker proceeds with the measurement work while checking the measurement instruction information transmitted from the management device 40 on the display device 30 of the measurement terminal 20. Below, the process performed by the measurement terminal 20 in the measurement work of the rail bracket 54 and the process performed by the management device 40 will be described with reference to a flowchart.

[0029] Fig. 8 is a flowchart showing a processing routine executed by the measurement terminal in the measurement operation. The flowchart shown in Fig. 8 is realized by the processor 25a of the arithmetic device 25 of the measurement terminal 20 executing the program 25c.

[0030] 8, in step S100, the arithmetic device 25 determines whether or not it has received measurement instruction information from the management device 40. As a result, if it has received measurement instruction information, the process proceeds to step S102, and if it has not received measurement instruction information, the process of this routine is terminated.

[0031] In step S102, the arithmetic device 25 displays the received measurement instruction information on the display device 30. Typically, the arithmetic device 25 displays the rail category, ID, category, and dimension name as information for indicating the next measurement point, as shown in Fig. 3 .

[0032] The worker performs the measurement while referring to the measurement point displayed on the display device 30. FIG. 9 is a diagram for explaining a method in which the worker performs the measurement of the measurement point using the measurement terminal 20. FIG. 9 illustrates an example in which the dimension A of the rail bracket 54 is specified as the measurement point. The worker aligns the tip surface 26a of the tip member 26 with one end 54a of the dimension A. In the example of FIG. 9, since the one end 54a of the dimension A is in contact with the wall surface, the tip surface 26a is brought into contact with the wall. Note that, if the wall surface is made of metal, the tip surface 26a is fixed to the wall surface by magnetic force. Next, the worker pulls out the wire 24 and aligns the tip portion 22a of the pull-out port 22 with the other end 54b of the dimension A.

[0033] In step S104, the arithmetic unit 25 uses the pulse signal of the length measurement sensor 23 to calculate the length measurement value corresponding to the pulled-out amount of the wire 24, that is, the length from the tip surface 26a to the tip 22a. The calculated length measurement value is displayed on the screen of the display device 30. When the operator determines the length measurement value, he or she presses the transmission switch 28. In step S106, it is determined whether the transmission switch 28 has been pressed. Here, the arithmetic unit 25 determines whether an ON signal of the transmission switch has been received. As a result, if the arithmetic unit 25 has not received the ON signal, it is determined that the measurement is still in progress, and the process of step S104 is executed again. On the other hand, if the arithmetic unit 25 has received the ON signal, it is determined that the measurement of the designated measurement point has been completed, and the process proceeds to step S108.

[0034] In step S108, the calculation device 25 generates measurement result information using the communication device 27 and transmits it to the management device 40. In the measurement terminal 20, the routine shown in Fig. 8 is repeatedly executed, so that the specified measurement points are measured in order.

[0035] Fig. 10 is a flowchart showing a processing routine executed by the management device in a measurement operation. The flowchart shown in Fig. 10 is realized by the processor 42a of the control device 42 of the management device 40 executing the program 42c.

[0036] In step S120 of the routine shown in Fig. 10, the control device 42 executes a transmission process to transmit measurement instruction information to the measurement terminal 20. The measurement content information stores information for indicating the measurement points of the rail bracket in association with the measurement order. The control device 42 extracts information on the measurement point with the highest measurement order from among the unmeasured measurement points included in the measurement content information, and transmits it as measurement instruction information. After the process of step S120 is performed, the process proceeds to the next step S122.

[0037] In step S122, the control device 42 determines whether or not it has received measurement result information corresponding to the measurement instruction information transmitted in step S120. If the result indicates that the measurement result information has not been received, the process of step S122 is repeatedly executed until the measurement result information is received.

[0038] On the other hand, if the measurement result information has been received, the process proceeds to step S124. In step S124, the control device 42 executes a storage process for storing the received measurement result information in the memory 42b. The stored measurement result information is displayed on the screen of the display device 48. Here, for example, as shown in FIG. 6, information in which the measurement result and the measurement location are associated is displayed. In the next step S126, the control device 42 executes an evaluation process for evaluating the rail bracket based on the measurement result. An example of the evaluation process is a strength calculation of the rail bracket. The evaluation result information including the calculation result is stored in the memory 42d. In addition, the evaluation result information is displayed on the screen of the display device 48 together with the measurement result. After the process of step S126 is performed, the process proceeds to the next step S128.

[0039] In step S128, the control device 42 judges whether or not the measurement of all the measurement points included in the measurement content information has been completed. If the result shows that all the measurements have not been completed, the process proceeds to step S120 again, and measurement instruction information is sent from which information specifying the next measurement point has been extracted. On the other hand, if all the measurements have been completed, this routine is ended.

[0040] According to the above-described operation of the dimension measuring device 100, information on the measurement location is displayed on the display device 30 of the measuring terminal 20. This allows the worker to perform the work without referring to additional documents, etc., thereby reducing the workload. In addition, the worker can automatically transmit the measurement result information to the management device 40 by pressing the transmission switch 28. Furthermore, upon receiving the measurement result information, the management device 40 automatically transmits information on the next measurement location to the measuring terminal 20. This allows the worker to continuously perform multiple measurements simply by pressing the transmission switch 28.

[0041] 5. Variations The dimension measuring apparatus 100 of this embodiment may be modified as follows.

[0042] 5-1. Dimension measuring device 100 In the dimension measuring device 100, all or part of the functions of the management device 40 may be arranged in the measuring terminal 20. In this case, the arithmetic device 25 of the measuring terminal 20 and the control device 42 of the management device 40 may cooperate to execute the routines shown in Figs. 8 and 10.

[0043] 5-2. Measurement terminal 20 When measuring a rail bracket, there may be an unmeasurable dimension that is difficult to measure using the wire 24 of the measuring terminal 20. In such a case, the worker measures the unmeasurable dimension using another measuring device. Then, the worker pulls out the wire 24 of the measuring terminal 20 so that the measured length value on the display device 30 becomes the measured value, and presses the transmission switch 28. According to this method of using the measuring terminal 20, even measurement results measured using another measuring device can be transmitted to the management device 40 in association with the measurement location.

[0044] There is no limitation on the shape of the measurement terminal 20. That is, the shapes and arrangements of the display device 30, the transmission switch 28, the outlet 22, and the tip member 26 can adopt various forms taking into consideration the operability of the operator. 5-3.Control device

[0045] Fig. 11 is a diagram showing a modified example of the hardware resources of the control device 42. In the example shown in Fig. 11, the control device 42 includes a processing circuit 42f including, for example, a processor 42a, a memory 42b, and dedicated hardware 42e. Fig. 11 shows an example in which some of the functions of the control device 42 are realized by the dedicated hardware 42e. All of the functions of the control device 42 may be realized by the dedicated hardware 42e. As the dedicated hardware 42e, a single circuit, a composite circuit, a programmed processor, a parallel programmed processor, an ASIC, an FPGA, or a combination of these can be adopted. [Explanation of symbols]

[0046] 10 communication network, 20 measurement terminal, 21 main body case, 22 outlet, 22a tip, 23 length measuring sensor, 24 wire, 25 calculation device, 25a processor, 25b memory, 25c program, 26 tip member, 26a tip surface, 27 communication device, 28 transmission switch, 29 rotation mechanism, 30 display device, 40 management device, 42 control device, 42a processor, 42b memory, 42c program, 42d data, 42e dedicated hardware, 42f processing circuit, 46 communication device, 48 display device, 50 elevator, 52 rail, 54 rail bracket, 100 dimension measuring device, 421 transmission processing section, 422 storage processing section, 423 evaluation processing section

Claims

1. A dimension measuring device used by an operator to measure the dimensions of a measurement object, The object to be measured includes a plurality of existing rail brackets for fixing elevator rails, a wire that can be pulled out from a pull-out opening provided in the main body case; a length measuring sensor that outputs an electrical signal corresponding to the amount of wire pulled out; a calculation device that calculates a length measurement value corresponding to the withdrawal amount based on the electrical signal; A display device that displays the measurement value; A memory in which measurement content information including information on one or more measurement points of the measurement object is stored; a processor coupled to the memory, The measurement content information is information for identifying each of the plurality of rail brackets, information for identifying measurement points of each of the rail brackets, and information defining a measurement order of the measurement points; The computing device and the processor cooperate to: measurement instruction information, which is information on a measurement location to be measured next, is extracted from the measurement content information, is displayed on the display device, the measurement value is calculated in response to an operation of the wire by an operator, and measurement result information, which associates the measurement value with the measurement instruction information, is stored in the memory; The dimension measuring device is a measurement terminal in which the wire, the length measuring sensor, the arithmetic unit, and the display unit are stored in the main body case; a management device connected to the measurement terminal via a communication network, the management device including the processor and the memory; the management device is a portable mobile terminal equipped with a mobile terminal display device, the processor is configured to execute an evaluation process for performing a calculation for evaluating each of the plurality of rail brackets based on the measurement result information, store evaluation result information including an evaluation result of the evaluation process in the memory, and display the evaluation result information on the mobile terminal display device; The processor is configured to perform a strength calculation for each rail bracket of the plurality of rail brackets in the evaluation process. A dimension measuring device characterized by:

2. The processor executes a transmission process of transmitting the measurement instruction information to the measurement terminal; The arithmetic unit displays the received measurement instruction information on the display unit.

2. The dimension measuring apparatus according to claim 1 .

3. The measuring terminal includes a switch operated by an operator, the calculation device generates the measurement result information using the measurement value when the switch is operated, and transmits the generated measurement result information to the management device; The processor executes a storage process for storing the received measurement result information in the memory.

3. The dimension measuring apparatus according to claim 2.

4. In the transmission process, upon receiving the measurement result information, the processor generates the measurement instruction information and transmits the generated measurement instruction information to the measurement terminal.

4. The dimension measuring apparatus according to claim 2 or 3.

5. 5. The dimension measuring device according to claim 1, wherein the outlet has a shape tapered toward a tip end.

6. The wire has a tip member at a tip end, 6. The dimension measuring device according to claim 1, wherein the tip member is magnetized.

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