Vibration evaluation system and vibration evaluation method

Abstract

To provide a vibration evaluation system and a vibration evaluation method that can accurately and smoothly evaluate vibration calculation information.SOLUTION: A vibration evaluation system 100 includes: a vibration meter 1 having an acceleration sensor 13 and a first communication unit 18 that outputs a detected waveform of the acceleration sensor 13 to the outside; and a portable terminal 2 that is portable and can communicate with the first communication unit 18 of the vibration meter 1, the portable terminal 2 having a calculation unit 27 that obtains vibration calculation information by calculation based on the detected waveform of the acceleration sensor 13, and a display operation unit 22 that displays the vibration calculation information that is a result of the calculation.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a vibration evaluation system and a vibration evaluation method. [Background technology]

[0002] Patent Document 1 discloses a vibration measuring device that detects ground vibrations using a vibration sensor and analyzes the ground vibrations based on the detected data. In Patent Document 1, a calculation unit that analyzes the vibrations is installed in the same device as the vibration sensor. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2015-135308 Summary of the Invention [Problem to be solved by the invention]

[0004] In the vibration measuring device of Patent Document 1, the vibration sensor and the calculation unit are mounted in the same device. Therefore, when an operator (measurer) presses the start switch of the vibration detector during measurement using the vibration measuring device, there is a risk that the acceleration sensor (vibration sensor) will detect the vibrations that occur as a result of this pressing operation. Therefore, the vibration measuring device described in Patent Document 1 may not be able to accurately evaluate ground vibrations. Furthermore, while the vibration measuring device described in Patent Document 1 also displays location information and maps using GPS, these are not linked to the measurement results, which could lead to data misinterpretation.

[0005] Furthermore, the measurement and evaluation of ground vibrations must be carried out smoothly at the measurement site.

[0006] In other words, it is required to accurately and smoothly evaluate the vibration calculation information.

[0007] SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a vibration evaluation system and a vibration evaluation method that can accurately and smoothly evaluate vibration calculation information. [Means for solving the problem]

[0008] An embodiment of the present invention provides a vibration evaluation system and a vibration evaluation method having the following features.

[0009] 1. A vibrometer having an acceleration sensor and a first communication unit that outputs a first detection output, which is a detection output of the acceleration sensor, to the outside; a portable terminal that is portable and capable of communicating with the vibration meter, the portable terminal having a calculation unit that calculates vibration calculation information based on the first detection output, and a display unit that displays the vibration calculation information that is the result of the calculation.

[0010] According to this configuration, the mobile terminal calculates vibration calculation information based on the first detection output from the acceleration sensor of the vibrometer placed at the measurement point. The vibrometer is placed at the measurement point, and the worker operates the mobile terminal from a position a predetermined distance away from the measurement point. Therefore, vibration measurement can be performed without applying vibrations caused by the worker to the vibrometer. This allows accurate measurement of the vibration calculation information, and therefore accurate evaluation of the vibration calculation information.

[0011] Furthermore, with the above configuration, the calculation results by the mobile terminal are displayed on the mobile terminal. Depending on the results of the vibration measurement, it may be necessary to redo the vibration measurement. Even in such cases, the operator can check the calculation results of the vibration calculation information at the measurement site, so that the vibration measurement can be redone immediately. This allows for smooth evaluation of the vibration calculation information. As described above, a vibration evaluation system that can accurately and smoothly evaluate the vibration calculation information can be provided.

[0012] 2. The vibration evaluation system according to item 1, wherein the mobile terminal further includes a record creating unit that creates a vibration measurement record that is a record of the vibration calculation information.

[0013] According to this configuration, in the portable terminal, the record creation unit creates a vibration measurement record based on the calculation result by the calculation unit. That is, by the worker operating the portable terminal, a vibration measurement record in report format can be created at the measurement site. Since the vibration measurement record is created at the measurement site, data mix-ups can be suppressed or prevented. This makes it possible to create a vibration measurement record while suppressing or preventing data mix-ups. Therefore, an accurate vibration measurement record can be created.

[0014] 3. The vibrometer further comprises a position sensor; the first communication unit outputs a second detection output, which is a detection output of the position sensor, to an outside; Item 3. The vibration evaluation system according to item 2, wherein the record creation unit obtains a position information indication regarding a position of the vibrometer based on the second detection output, and creates the vibration measurement record including the position information indication.

[0015] According to this configuration, the mobile terminal acquires a position information indication relating to the position of the vibrometer based on the second detection output from the position sensor of the vibrometer placed at the measurement point. Then, the record creation unit creates a vibration measurement record including the acquired position information indication. This makes it possible to accurately associate the position information indication included in the vibration measurement record with the placement position of the vibrometer.

[0016] 4. The vibration evaluation system according to item 3, wherein the location information display includes map information indicating the locations of the vibrometers.

[0017] According to this configuration, the location information display included in the vibration measurement record includes map information showing the location of the vibrometer, which allows the measurement point to be accurately identified at a glance.

[0018] 5. The mobile terminal has a camera, 5. The vibration evaluation system according to any one of items 2 to 4, wherein the record creating unit creates the vibration measurement record including an image captured by the camera.

[0019] With this configuration, the camera captures an image of the surroundings of the measurement point, and the image of the surroundings of the measurement point can be included in the vibration measurement record. By including the captured image of the surroundings of the measurement point, such as the vibration source, in the vibration measurement record, the surroundings of the measurement point can be accurately grasped at a glance by looking at the captured image.

[0020] 6. A vibration evaluation system according to any one of items 1 to 5, wherein the vibration calculation information includes at least one of a vibration spectrum calculated based on the first detection output and a vibration level calculated based on the first detection output.

[0021] 7. The vibration evaluation system according to any one of items 1 to 4, wherein the vibration evaluation system is a ground vibration evaluation system that evaluates ground vibration.

[0022] 8. A vibration evaluation method for evaluating vibrations occurring at a measurement point using a vibrometer having an acceleration sensor and a first communication unit that outputs a first detection output, which is a detection output of the acceleration sensor, to the outside, and a portable terminal that has a display unit, is portable, and can communicate with the vibrometer, a calculation step in which the portable terminal calculates vibration calculation information based on the first detection output of the acceleration sensor; and displaying the vibration calculation information, which is a result of the calculation, on the display unit.

[0023] 9. The vibration evaluation method according to item 8, wherein the vibration evaluation method is a ground vibration evaluation method for evaluating ground vibration.

[0024] 10. The vibration evaluation system according to any one of items 1 to 7, wherein the mobile terminal includes a control unit that instructs the acceleration sensor to at least one of start and end of measurement by the vibrometer.

[0025] According to this configuration, the control unit of the mobile terminal instructs the vibrometer to start or stop measurement. Therefore, it is possible to reliably prevent vibrations from being applied to the vibrometer due to the operation to start and / or stop measurement. This makes it possible to control the start and / or stop of measurement by the vibrometer without applying vibrations caused by the operator's operation to the vibrometer.

[0026] 11. The vibration evaluation system according to any one of items 1 to 7 and 10, wherein the mobile terminal is connected to the vibrometer via a wireless communication line.

[0027] According to this configuration, the mobile terminal is wirelessly connected to the vibrometer, so that good communication can be achieved between the vibrometer and the mobile terminal even when a river or road crosses between the vibrometer and the mobile terminal.

[0028] 12. The vibration evaluation system according to claim 10, wherein the mobile terminal is connected to the vibration meter via a dedicated, private wireless line.

[0029] In this specification, "connected via a dedicated wireless line" means that no devices are communicably connected to the line, except for the mobile terminal and the vibration meter.

[0030] With this configuration, the mobile terminal and the vibrometer communicate via a dedicated wireless line, without using a public line. Therefore, even if there is a problem with the public line, communication between the mobile terminal and the vibrometer can be continued without being affected by the problem.

[0031] Furthermore, communication between the mobile device and the vibration meter is performed via a dedicated wireless line that does not pass other data, so even if the volume of communication data including the first detection output becomes large, data delays can be avoided, allowing for smooth calculation of vibration calculation information. [Brief explanation of the drawings]

[0032] [Figure 1]1 is a schematic diagram showing a vibration evaluation system according to a first embodiment of the present invention. [Figure 2] FIG. 2 is a block diagram showing an electrical configuration of the vibration evaluation system. [Figure 3] 3 is a diagram for explaining the contents of setting data stored in a setting data storage unit shown in FIG. 2.

[0023] FIG. [Figure 4] 4 is a flowchart showing a flow of vibration measurement using the vibration evaluation system. [Figure 5] 3 is a flowchart showing the flow of vibration measurement processing executed by the control unit shown in FIG. 2. [Figure 6] 6 is a flowchart showing the flow of execution of the vibration analysis shown in FIG. 5. [Figure 7] 2 is a diagram showing an example of the display content of the display operation unit shown in FIG. 1. FIG. [Figure 8] 4A and 4B are diagrams illustrating an example of display content of the display operation unit. [Figure 9] 4A and 4B are diagrams illustrating an example of display content of the display operation unit. [Figure 10] 4A and 4B are diagrams illustrating an example of display content of the display operation unit. [Figure 11] 4A and 4B are diagrams illustrating an example of display content of the display operation unit. [Figure 12] 4A and 4B are diagrams illustrating an example of display content of the display operation unit. [Figure 13] FIG. 10 is a diagram showing a vibration measurement report according to the first embodiment. [Figure 14] FIG. 14 is an enlarged view of the position information display shown in FIG. [Figure 15] 3 is a diagram for explaining the contents of a database stored in a database storage unit shown in FIG. 2.

[0023] FIG. [Figure 16] 7 is a part of a flowchart showing the flow of vibration measurement processing executed in a vibration evaluation system according to a second embodiment of the present invention, and corresponds to FIG. 6. [Figure 17] 4A and 4B are diagrams illustrating an example of display content of the display operation unit. [Figure 18] FIG. 10 is a diagram showing a vibration measurement report according to the second embodiment. [Figure 19]FIG. 10 is a schematic diagram for explaining vibration measurement using a vibration evaluation system according to a third embodiment of the present invention. [Figure 20] 5 is a part of a flowchart showing a flow of vibration measurement using the vibration evaluation system, and corresponds to FIG. 4. [Figure 21] 7 is a flowchart showing the flow of vibration measurement processing executed in the vibration evaluation system, and corresponds to FIG. 6. [Figure 22] FIG. 10 is a diagram showing a vibration measurement report according to the third embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0033] Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. FIG. 1 is a schematic diagram showing a vibration evaluation system 100 according to a first embodiment of the present invention. The vibration evaluation system 100 is a system that measures vibrations at a predetermined measurement point MP using a vibrometer 1, analyzes the measurement data, and calculates vibration calculation information to evaluate vibrations at a measurement target point TP. The vibration evaluation system 100 may also have a function of creating a vibration measurement report 91 (FIG. 13). In this embodiment, the vibration evaluation system 100 may be a system that evaluates vibrations at the measurement target point TP by measuring and analyzing ground vibrations at the measurement point MP. In this specification, the measurement point MP refers to a point where the vibrometer 1 is placed (installed). The measurement target point TP refers to a point that is the target of vibration evaluation.

[0034] In this embodiment, the vibration evaluation system 100 measures the environmental vibration at the measurement target point TP. In this embodiment, the vibration calculation information sought by the mobile terminal 2 is the vibration level.

[0035] 1, the vibration evaluation system 100 includes a vibrometer 1 placed at a measurement point MP and a portable terminal 2 held (carried) by an operator (measurer). The vibrometer 1 is placed on the ground, floor, etc. at the measurement point MP and measures vibrations of the ground, floor, etc. In this embodiment, the vibrometer 1 is placed at a measurement target point TP. That is, in this embodiment, the measurement point MP where the vibrometer 1 is placed coincides with the measurement target point TP.

[0036] The mobile terminal 2 is connected to the vibration meter 1 via a dedicated wireless line N1. When measuring vibrations, the worker operates the mobile terminal 2 at a position a predetermined distance L (for example, 10 m to 20 m) away from the vibration meter 1. The mobile terminal 2 is also connected to a public line N2. The mobile terminal 2 can be connected to a map providing server 3 via the public line N2.

[0037] 2 is a block diagram showing the electrical configuration of the vibration evaluation system 100. The vibrometer 1 includes a control unit 11, a memory unit 12, an acceleration sensor 13, a geomagnetic sensor 14, a GPS sensor 15 as an example of a position sensor, a temperature and humidity sensor 16, a power supply unit 17, and a first communication unit 18. The control unit 11, the memory unit 12, the acceleration sensor 13, the geomagnetic sensor 14, the GPS sensor 15, the temperature and humidity sensor 16, the power supply unit 17, and the first communication unit 18 are housed in a box 19 (FIG. 1).

[0038] The control unit 11 includes a microcomputer. More specifically, the control unit 11 includes an arithmetic unit such as a processor, a storage unit, a timer, etc. The processor includes a CPU (Central Processing Unit). The processor may further include a GPU (Graphics Processing Unit). The storage unit includes a RAM (Random Access Memory) and a ROM (Read Only Memory).

[0039] The storage unit 12 is configured by a storage device such as a non-volatile memory, a hard disk drive, etc. The storage unit 12 stores programs that can be executed by the processor of the control unit 11.

[0040] The acceleration sensor 13 is, for example, a triaxial acceleration sensor that detects the magnitude of acceleration in three directions of the sensor axis. The acceleration sensor 13 is a type of sensor that detects acceleration including gravitational acceleration as acceleration. The acceleration sensor 13 is a digital acceleration sensor that outputs the magnitude of acceleration in the three directions of the sensor axis as a digital value. Specifically, the digital acceleration sensor is a quartz digital acceleration sensor that uses a crystal. A quartz digital acceleration sensor outputs absolute acceleration including a gravitational acceleration value. Since the direction of gravity can be identified from the calculation of the triaxial acceleration value including gravity, the vibrometer 1 can determine the inclination of the acceleration sensor 13 (for example, the inclination of the acceleration sensor 13 with respect to the vertical direction) based on the detection output (first detection output) of the acceleration sensor 13.

[0041] The detection output of acceleration sensor 13 is constantly fluctuating, and is therefore detected as waveform data. The detection output of acceleration sensor 13, i.e., the acceleration values ​​in the three directions of the sensor axis of acceleration sensor 13, is provided to control unit 11. Although a digital sensor has been given as an example of acceleration sensor 13, acceleration sensor 13 may also be an analog acceleration sensor.

[0042] In this embodiment, the geomagnetic sensor 14 is configured as a triaxial geomagnetic sensor. The geomagnetic sensor 14 detects the magnetic field strength on three axes and detects the orientation of the geomagnetic sensor 14 based on the detected magnetic field strength. By disposing the geomagnetic sensor 14 in the vibration meter 1, the orientation of the vibration meter 1 can be determined. In this embodiment, the geomagnetic sensor 14 only needs to be able to detect the north direction (magnetic north direction), so it may be configured as a biaxial geomagnetic sensor.

[0043] The GPS sensor 15 is a sensor that receives radio waves from satellites for the GPS (Global Positioning System) and detects position information (latitude and longitude) of the absolute position of the vibrometer 1 and the current time. The GPS sensor 15 is an example of a satellite positioning system. In addition to the GPS sensor 15, a GNSS sensor system can also be used as the satellite positioning system.

[0044] The temperature and humidity sensor 16 detects the temperature and humidity at the measurement point MP. The detection output (second detection output) of the temperature and humidity sensor 16 is given to the mobile terminal 2.

[0045] The power supply unit 17 generates the power used by the vibrometer 1 based on a commercial power supply (AC power supply) or a battery. For example, the power supply unit 17 may normally receive power from a commercial power supply (AC power supply) via an outlet plug or the like. A battery may be connected to the power supply unit 17 so that power from the battery is supplied to the power supply unit 17 in the event of a power outage. This battery may be a rechargeable battery.

[0046] The first communication unit 18 is connected to the second communication unit 25 of the mobile terminal 2 via a dedicated wireless line N1.

[0047] The portable terminal 2 is a portable terminal, such as a tablet terminal, that is held (carried) by the measurer. The portable terminal 2 includes a control unit 21 as an example of a record creation unit, a display operation unit 22 as an example of a display unit, a camera 23, a memory unit 24, a second communication unit 25, and a third communication unit 26. The control unit 21 is electrically connected to the display operation unit 22, the camera 23, the memory unit 24, the second communication unit 25, and the third communication unit 26.

[0048] The control unit 21 includes a microcomputer. More specifically, the control unit 21 includes an arithmetic unit such as a processor, a storage unit, a timer, etc. The processor includes a GPU (Graphic Processing Unit) and a CPU (Central Processing Unit), etc. The storage unit includes a RAM (Random Access Memory) and a ROM (Read Only Memory).

[0049] The control unit 21 includes a calculation unit 27. The calculation unit 27 is one of the functions realized by the control unit 21. The calculation unit 27 calculates vibration calculation information based on a detection signal from the acceleration sensor 13 of the vibration meter 1. In this embodiment, the vibration calculation information is the vibration level (maximum value).

[0050] The display operation unit 22 is configured with a liquid crystal touch panel or the like. The display unit and the operation unit may be configured separately in the display operation unit 22. An input device such as a keyboard may be used as the operation unit.

[0051] The camera 23 has, for example, a standard resolution. The image captured by the camera 23 is, for example, a still image. In this embodiment, the camera 23 is built into the mobile terminal 2. The camera 23 may also be provided separately from the mobile terminal 2 as an imaging device independent of the mobile terminal 2. In this case, the imaging device also constitutes the vibration evaluation system 100.

[0052] The storage unit 24 includes storage devices such as nonvolatile memory and a hard disk drive, and stores various information. The storage unit 24 stores programs that can be executed by the processor of the control unit 21. The application programs stored in the storage unit 24 include a vibration measurement application program used in the vibration measurement process (FIG. 5) and a spreadsheet application program used to create a vibration measurement report 91 (FIG. 13), etc. In other words, the vibration measurement application program and the calculation application program are installed in the mobile terminal 2.

[0053] The storage unit 24 includes a waveform storage unit 31, an image storage unit 32, an analysis result storage unit 34, a setting data storage unit 35, and a database storage unit 36. The waveform storage unit 31 stores waveform data (detection output of the acceleration sensor 13) sent from the vibration meter 1. The waveform storage unit 31 stores measurement data (waveform data in each direction) of the created triaxial acceleration. The image storage unit 32 stores captured images captured by the camera 23 of the mobile terminal 2. The analysis result storage unit 34 stores the analysis result (vibration level in this embodiment), which is the result of calculation.

[0054] The setting data storage unit 35 stores setting data 37. One setting data 37 is provided for each measurement target point TP. The setting data 37 is an initial setting file required for executing a vibration analysis batch.

[0055] 3 is a diagram illustrating the contents of the setting data 37 stored in the setting data storage unit 35 shown in FIG. 2. In this embodiment, the setting data 37 includes a project name (Japanese) (A1), a subtitle (Japanese) (A2), a measurer name (Japanese) (A3), a district name (Japanese) (A4), a project name (ID) (A5), a file name (A6) of the corresponding measurement data 39, a folder name (A7) of a folder in the waveform storage unit 31 in which waveform data (detection output of the acceleration sensor 13) is stored, a folder name (A8) of a folder in the image storage unit 32 in which captured images are stored, and control data (A9) at the beginning of the vibration analysis processing program. The setting data 37 is stored in the setting data storage unit 35 in one-to-one correspondence with vibration measurement projects. The setting data storage unit 35 is capable of storing multiple pieces of setting data 37.

[0056] 2, the database storage unit 36 ​​stores a database 38. The database 38 includes measurement data 39 corresponding to each vibration measurement. That is, the database 38 includes measurement data 39 corresponding to a plurality of vibration measurements. The measurement data 39 is created in, for example, a CSV format, and its file name is "data identification name.csv." Details of the measurement data 39 will be described later. As indicated by the two-dot chain line in FIG. 2, the database 38 may be stored in the cloud C instead of the database storage unit 36.

[0057] Referring to FIG. 2, the second communication unit 25 is connected to the first communication unit 18 of the vibration meter 1 via a dedicated wireless line N1.

[0058] The dedicated wireless line N1 is realized by a wireless communication device such as a Wi-Fi (registered trademark) communication device or a Bluetooth (registered trademark) communication device. The dedicated wireless line N1 allows communication only between two predetermined points (the first communication unit 18 of the vibration meter 1 and the second communication unit 25 of the mobile terminal 2). In other words, devices other than the vibration meter 1 and the mobile terminal 2 (predetermined devices) cannot communicate over the dedicated wireless line N1.

[0059] The third communication unit 26 is connected to the public line N2. In this configuration, the mobile terminal 2 can communicate with the map providing server 3 via the third communication unit 26 and the public line N2 (communication network).

[0060] Fig. 4 is a flowchart showing the flow of vibration measurement using the vibration evaluation system 100. Fig. 5 is a flowchart showing the flow of vibration measurement processing executed by the control unit 21 of the mobile terminal 2. Fig. 6 is a flowchart showing the flow of batch execution of vibration analysis in the mobile terminal 2 shown in Fig. 5. Figs. 7 to 12 are diagrams showing examples of the display contents of the display operation unit 22 of the mobile terminal 2. The flow of vibration measurement using the vibration evaluation system 100 will be described with reference to Figs. 1, 2 and 4 to 6. Figs. 7 to 11 will be referred to as appropriate.

[0061] When measuring vibration, the worker first carries the vibrometer 1 and the mobile terminal 2 from the office of the business to which the worker belongs to the measurement point MP (which coincides with the measurement target point TP, Fig. 1). After arriving at the measurement point MP, the worker places (installs) the vibrometer 1 on a support surface such as the ground or floor at the measurement point MP (step S1 in Fig. 4).

[0062] In the vibrometer 1, the acceleration sensor 13 is housed in a box 19 (Fig. 1), so there is no need to route the cable of the vibrometer 1 each time the vibrometer 1 is placed (installed). In addition, because the acceleration sensor 13 is configured as a triaxial acceleration sensor capable of measuring gravitational acceleration, there is no need to perform level adjustment to make the vibrometer 1 horizontal. Furthermore, because the vibrometer 1 is equipped with a geomagnetic sensor 14 (i.e., a magnetic north sensor), there is no need to adjust the vibrometer 1 in advance so that it faces magnetic north. This simplifies preparation for vibration measurement, reducing the hassle of the preparation work.

[0063] Furthermore, the operator operates the portable terminal 2 to start a vibration measurement application program that has been installed in the portable terminal 2. After the vibration measurement application program is started, the control unit 21 displays a selection screen 41 shown in FIG. 7 on the display operation unit 22.

[0064] The selection screen 41 shown in FIG. 7 includes a guidance message 42 and a project selection key 43. Below, all keys whose names end with "key" are touch keys. The worker selects the project selection key 43 (for example, "ABABI00") corresponding to the current vibration measurement from among the multiple project selection keys 43. The control unit 21 reads out the setting data 37 corresponding to the project corresponding to the selected project selection key 43 from the setting data storage unit 35. Thereafter, the mobile terminal 2 enters a standby state (step S2 in FIG. 4). In the standby state of the mobile terminal 2, a measurement standby screen 46 shown in FIG. 8 is displayed on the display operation unit 22. The measurement standby screen 46 shown in FIG. 8 includes a guidance message 47 and a start key 48.

[0065] The operation to start vibration measurement is performed by the worker carrying the mobile terminal 2, standing a predetermined distance L (FIG. 1, for example, 10 m to 20 m) away from the vibration meter 1. When the worker operates the start key 48 (YES in step S2 in FIG. 4, YES in step S11 in FIG. 5), the control unit 21 of the mobile terminal 2 executes the vibration measurement process S5 (FIGS. 4 and 5). The duration of this vibration measurement process S5 is from a dozen minutes to several hours.

[0066] In the vibration measurement process S5, the control unit 21 of the mobile terminal 2 acquires the detection output of the acceleration sensor 13 of the vibration meter 1 via the second communication unit 25. In this embodiment, the detection output of the acceleration sensor 13 is waveform data that changes over time. The control unit 21 stores the acquired waveform data in the waveform storage unit 31 (step S12 in FIG. 5). The waveform data is continuously stored in the waveform storage unit 31 throughout the vibration measurement process S5. If the communication speed of the dedicated communication line N1 is slow, it is also possible to transfer all the waveform data to the mobile terminal after the measurement is completed.

[0067] Furthermore, in the vibration measurement process S5, the control unit 21 acquires position information (latitude and longitude) of the vibrometer 1 from the GPS sensor 15 of the vibrometer 1 via the second communication unit 25, and stores the acquired position information in the storage unit 24 (step S13 in FIG. 5). The control unit 21 acquires three-axis magnetic field strength (orientation information) from the geomagnetic sensor 14 of the vibrometer 1 via the second communication unit 25, and stores the acquired magnetic field strength in the storage unit 24 (step S13 in FIG. 5). The control unit 21 acquires temperature and humidity information from the temperature and humidity sensor 16 of the vibrometer 1 via the second communication unit 25, and stores the acquired temperature and humidity information in the storage unit 24 (step S13 in FIG. 5). The storage of the position information, magnetic field strength, and temperature and humidity information is performed periodically.

[0068] After the start key 48 is operated, a location name input screen 51 shown in FIG. 9 is then displayed on the display operation unit 22. The location name input screen 51 includes a guidance message 52 and an input section 53. By operating a keyboard section (software keyboard, external keyboard, etc.) not shown, the operator can input desired characters, alphanumeric characters, symbols, etc. into the input section 53. The operator inputs the name of the measurement location MP (FIG. 1) into the input section 53 of the location name input screen 51 displayed on the display operation unit 22 (step S3 in FIG. 4). The input information is stored in the memory unit 24.

[0069] When the input to the input unit 53 is completed, the control unit 21 then displays a surrounding situation photographing screen 56 shown in FIG. 10 on the display operation unit 22. The surrounding situation photographing screen 56 is a screen for prompting (guiding) the operator to photograph (take a photograph) the surrounding situation using the camera 23 of the portable terminal 2. The surrounding situation photographing screen 56 includes a guidance message 57 and an imaging mode key 58. When the imaging mode key 58 is selected, the portable terminal 2 transitions to imaging mode (photography mode). In the imaging mode, the operator photographs the surrounding situation of the measurement point MP, the situation of the vibration source, and the like multiple times (e.g., three times) using the camera 23 of the portable terminal 2 (step S4 in FIG. 4). The captured images taken by the camera 23 are stored in the image storage unit 32. When the imaging of the surrounding situation of the measurement point MP is completed, the control unit 21 then displays a measurement in progress screen 61 shown in FIG. 11 on the display operation unit 22. The measurement in progress screen 61 includes a guidance message 62 and an end key 63.

[0070] When a predetermined measurement time has elapsed since the start of vibration measurement (YES in step S14 in FIG. 5), the control unit 21 of the mobile terminal 2 ends the vibration measurement process S5 (FIGS. 4 and 5). Even before the measurement time has elapsed (NO in step S14 in FIG. 5), if the end key 63 (FIG. 11) is operated, the control unit 21 ends the vibration measurement process S5 (FIGS. 5 and 20). Next, the vibration analysis process S6 (FIGS. 4 and 5) is executed.

[0071] In vibration analysis processing S6, control unit 21 creates execution data for vibration analysis (step S15 in FIG. 5). Specifically, control unit 21 reads waveform data corresponding to the current vibration measurement from waveform storage unit 31. Control unit 21 also reads captured image data corresponding to the current vibration measurement from image storage unit 32. Control unit 21 also reads setting data 37 corresponding to the current vibration measurement from setting data storage unit 35. Then, control unit 21 creates execution data based on these pieces of data.

[0072] In vibration analysis processing S6, control unit 21 executes data for executing vibration analysis (execution of vibration analysis, step S16 in FIG. 5). Specifically, control unit 21 performs coordinate transformation on the detected waveform data (step S21 in FIG. 6). Then, calculation unit 27 of control unit 21 calculates a vibration level based on the converted waveform data (step S22 in FIG. 6). The vibration level, which is the calculation result, is stored in analysis result storage unit 34. Furthermore, calculation unit 27 of control unit 21 extracts the maximum vibration level during the measurement period (step S23 in FIG. 6). The maximum vibration level, which is the calculation result, is also stored in analysis result storage unit 34.

[0073] In the coordinate conversion of step S21 in FIG. 6, the control unit 21 converts the three-direction output values ​​of the acceleration sensor 13 from the coordinate system of the three axes of the sensor to a first Cartesian coordinate system so that the direction of gravitational acceleration coincides with the Z axis. The control unit 21 of the mobile terminal 2 also converts the converted acceleration values ​​to a second Cartesian coordinate system so that the sensor axes of the acceleration sensor 13 point toward north (magnetic north). This coordinate conversion can be performed using, for example, the technique described in JP 2022-171245 A. This allows the magnitude of acceleration in the three directions—north-south, east-west, and vertical—to be measured regardless of the inclination or orientation of the vibrometer 1.

[0074] After extracting the maximum vibration level, the control unit 21 of the portable terminal 2 ends the vibration analysis process S6 (FIGS. 4 and 5), and displays a measurement end screen 66 shown in FIG. 12 on the display operation unit 22 of the portable terminal 2. The measurement end screen 66 includes a measured vibration level display section 67, a guide message 68, an accept key 69, and a remeasurement key 70. The analysis result of the vibration analysis in the vibration analysis process S6 (for example, the maximum vibration level; in the example of FIG. 12, 58.5 dB) is displayed on the measured vibration level display section 67 of the display operation unit 22 (step S7 in FIG. 4).

[0075] The operator looks at the analysis results (maximum vibration level) of the vibration analysis displayed on the measured vibration level display unit 67 and decides whether or not to redo the vibration measurement. If the operator determines that the analysis results are valid (YES in step S8 in FIG. 4), the operator operates the accept key 69 (FIG. 12) on the display operation unit 22 (measurement end screen 66). If the operator determines that the analysis results are invalid and that remeasurement is necessary (NO in step S8 in FIG. 4), the operator operates the remeasurement key 70 (FIG. 12) on the display operation unit 22 (measurement end screen 66).

[0076] When the remeasurement key 70 (FIG. 12) is operated on the measurement end screen 66 (FIG. 12) (NO in step S8 in FIG. 4), the control unit 21 decides to perform remeasurement (step S10 in FIG. 4). The control unit 21 displays the measurement standby screen 46 (FIG. 8) on the display operation unit 22 of the portable terminal 2. This puts the portable terminal 2 into a standby state (step S4 in FIG. 4). When the start key 48 is operated (YES in step S4 in FIG. 4), the vibration measurement process S5 is executed again. The vibration measurement process S5 and the vibration analysis process S6 are repeated until the operator determines that the analysis results are valid (step S8 in FIG. 4).

[0077] On the other hand, when the adopt key 69 (FIG. 12) is operated on the display operation unit 22 (measurement end screen 66) (YES in step S8 in FIG. 4), the control unit 21 of the mobile terminal 2 creates a vibration measurement report (vibration measurement record) 91 (step S9 in FIG. 4, step S19 in FIG. 5). The control unit 21 creates the vibration measurement report 91 according to a predetermined layout using an installed calculation application program.

[0078] Fig. 13 is a diagram showing a first example of a vibration measurement report 91. The vibration measurement report 91 includes a bibliographical information display 92, a first calculation result display 94, a second calculation result display 95, a location information display 96, and an image display 97. Fig. 14 is an enlarged view of the location information display 96.

[0079] The bibliographic information display 92 includes the name of the measurement point MP (FIG. 1), the project name (Japanese) (A1), the subtitle (Japanese) (A2), and the name of the measurer (Japanese) (A3). The control unit 21 creates the bibliographic information display 92 based on the name of the measurement point MP (FIG. 1) stored in the memory unit 24 and the setting data 37 included in the execution data for vibration analysis.

[0080] 13, a first calculation result display 94 shows the maximum vibration level extracted from the calculation results. A second calculation result display 95 shows a graph of the time change in the vibration level from the calculation results. The control unit 21 creates the first calculation result display 94 and the second calculation result display 95 based on the calculation results stored in the analysis result storage unit 34.

[0081] Either the first calculation result display 94 or the second calculation result display 95 may be omitted. Instead of or in addition to the calculation result displays 94, 95, representative data of the vibration level may be displayed using numbers and letters. Specifically, at least one of the vibration acceleration level (VAL: Vibration Acceleration Level) and the vibration level (VL: Vibration Level) may be displayed. In this case, for both the vibration acceleration level and the vibration level, at least one of the equivalent level (Leq), maximum level (Max), minimum level (Min), and time percentage level (L5, L10, L50, L90, L95) may be displayed.

[0082] 14, the position information display 96 includes map information 96a. The map information 96a shows the measurement point MP on a surrounding map 96b using a position identification display 96c. In this embodiment, the position identification display 96c is a cross marker. The control unit 21 transmits the position information (latitude and longitude) of the vibrometer 1 stored in the memory unit 24 to the map providing server 3. The map providing server 3 creates map information 96a based on the position information (latitude and longitude) of the vibrometer 1 and sends it to the mobile terminal 2. The control unit 21 of the mobile terminal 2 creates the map information 96a sent from the map providing server 3 as the position information display 96.

[0083] 13, image display 97 includes a plurality of (for example, three) captured images 98. Control unit 21 creates image display 97 based on captured images 98 included in the execution data for vibration analysis.

[0084] The created vibration measurement report 91 is stored in the memory unit 24. The vibration measurement report 91 stored in the memory unit 24 is printed out or the like by the operator (measurer) upon returning to the office. After the vibration measurement report 91 is created, the database 38 is updated (step S20 in FIG. 5). Specifically, measurement data 39 corresponding to the current vibration measurement is added to the database 38. The control unit 21 creates the measurement data 39 based on the execution data for vibration analysis.

[0085] Fig. 15 is a diagram for explaining the contents of the database 38 stored in the database storage unit 36 ​​shown in Fig. 2. The database 38 includes a plurality of measurement data 39.

[0086] Each measurement data 39 includes a project name (ID) (B1), a measurement location name (English) (B2), a measurement result file name (B3), a measurement date (B4), a measurement time (B5), the latitude and longitude of the measurement location MP (B6, B7), origin coordinates (B8, B9), a circle radius (B10), measured magnetic fields (B11-B13), measured temperature (B14), measured humidity (B15), a calculation result file name (B16-B18), an image file name (B19-B21), a project name (Japanese) (B22), a subtitle (Japanese) (B23), a name of the person who performed the measurement (Japanese) (B24), and the name of the measurement location MP (Japanese) (B25). The measurement data 39 in the database 38 is used for document organization at the business establishment or the like after vibration measurement.

[0087] The measurement point name (English) (B2) is the name of the measurement point MP (FIG. 1) input by the input unit 53 in step S3 of FIG. 4. The measurement result file name (B3) is the file name of the waveform data stored in the waveform storage unit 31. The calculation result file name (B16 to B18) is the file name of the calculation result stored in the analysis result storage unit 34. In this embodiment, the calculation result file name 1 (B16) is the file name of the vibration level stored in the analysis result storage unit 34. The calculation result file name 2 (B17) and the calculation result file name 3 (B18) do not exist (are empty areas) in this embodiment. The image file name (B19 to B21) is the file name of the data of the captured image 98 stored in the image storage unit 32.

[0088] In this embodiment, the portable terminal 2 calculates the vibration calculation information based on the detection output (first detection output) from the acceleration sensor of the vibrometer placed at the measurement point MP. Specifically, the vibrometer 1 is placed at the measurement point MP, and the worker operates the portable terminal 2 from a position that is a predetermined distance L (for example, 10 m to 20 m) away from the measurement point MP. Therefore, vibration measurement can be performed without applying vibrations caused by the worker to the vibrometer 1. Furthermore, since the portable terminal 2 calculates the vibration calculation information based on the detection output from the vibrometer 1, the vibration calculation information can be measured accurately.

[0089] Furthermore, according to this embodiment, the calculation result (maximum vibration level) by the portable terminal 2 is displayed on the portable terminal 2. That is, the worker can check the vibration calculation information calculated by the portable terminal 2 at the measurement site (near the measurement point MP). Depending on the result of the vibration measurement, it may become necessary to repeat the vibration measurement, but even in this case, the worker can check the calculation result of the vibration calculation information at the measurement site, so that the vibration measurement can be immediately repeated.

[0090] Let us consider a case where the vibration calculation information is calculated not by the mobile terminal 2 but by a computer (personal computer) located in the office (workplace of the worker). In this case, the worker cannot understand the results of the vibration measurement unless he returns to the office. Therefore, if it becomes necessary to redo the vibration measurement, he must leave the office and go to the measurement site again. Therefore, redoing the vibration measurement takes time and effort. In other words, in this case, there is a risk that the vibration calculation information cannot be evaluated smoothly.

[0091] In contrast, according to this embodiment, the operator can check the calculation results of the vibration calculation information at the measurement site, and can immediately repeat the vibration measurement, thereby enabling smooth evaluation of the vibration calculation information.

[0092] Furthermore, in the portable terminal 2, the control unit 21 creates a vibration measurement report 91 based on the calculation results by the calculation unit 27. That is, the vibration measurement report 91 can be created at the measurement site by the worker operating the portable terminal 2. Since the vibration measurement report 91 is created at the measurement site, it is possible to suppress or prevent data mix-ups.

[0093] Let us consider a case where the system is installed not on the mobile terminal 2 but on a computer (personal computer) located in the office. In this case, the vibration measurement report is created by an operator (measurer) who returns to the office. In other words, the vibration measurement report is created after a certain amount of time has passed since the vibration measurement. Normally, vibration measurements are taken at multiple measurement points MP during a day's vibration measurement work. Therefore, if the vibration measurement report is created after a certain amount of time has passed since the vibration measurement, there is a risk that the data (vibration calculation information, which is the calculation result, and captured images) may be mixed up during the creation.

[0094] In contrast, according to this embodiment, the vibration measurement report 91 can be created at the measurement site (near the measurement point MP). This makes it possible to create the vibration measurement report 91 while suppressing or preventing data mix-ups. Therefore, an accurate vibration measurement report 91 can be created.

[0095] Furthermore, the mobile terminal 2 acquires position information of the vibrometer 1 based on the detection output (second detection output) from the GPS sensor 15 of the vibrometer 1 placed at the measurement point MP. Then, the control unit 21 creates a vibration measurement report 91 including a position information display 96 created based on the acquired position information. This allows the position information display 96 included in the vibration measurement report 91 to be accurately associated with the placement position of the vibrometer 1 (i.e., the measurement point MP).

[0096] Let us consider a case where the mobile terminal 2 acquires the position information of the measurement point MP based on the detection output of a GPS sensor built into the mobile terminal 2, rather than the GPS sensor 15 of the vibration meter 1. In this case, the position information display 96 included in the vibration measurement report 91 created by the mobile terminal 2 corresponds to the position information of the mobile terminal 2, which is a predetermined distance (for example, 10 m to 20 m) away from the vibration meter 1, rather than the position information of the vibration meter 1. In this case, the position of the measurement point MP cannot be displayed with high accuracy.

[0097] In contrast, according to this embodiment, the position information display 96 included in the vibration measurement report 91 created by the control unit 21 can be associated with the detection output from the GPS sensor 15, so that the measurement point MP can be displayed with high accuracy.

[0098] Furthermore, the location information display 96 included in the vibration measurement report 91 includes map information 96a in which the location of the vibration meter 1 is indicated by a location identification display 96c, so the location information display 96 allows the measurement point MP to be accurately identified at a glance.

[0099] Furthermore, according to this embodiment, by capturing images of the surrounding conditions and vibration sources of the measurement point MP using the camera 23, an image display 97 including a captured image 98 of the surrounding conditions of the measurement point MP can be included in the vibration measurement report 91. By including the image display 97 including the captured image 98 of the surrounding conditions in the vibration measurement report 91, the surrounding conditions of the measurement point MP can be accurately grasped at a glance by looking at the vibration measurement report 91.

[0100] Furthermore, according to this embodiment, the control unit 21 of the mobile terminal 2 instructs the vibrometer 1 to start (and end) measurement. This makes it possible to reliably prevent vibrations from being applied to the vibrometer 1 due to the operation to start (and end) measurement, or to prevent someone from approaching the vibrometer 1 before the end of measurement. This makes it possible to control the start and end of measurement by the vibrometer 1 without applying vibrations caused by the operator's operation to the vibrometer.

[0101] Furthermore, since the mobile terminal 2 is wirelessly connected to the vibration meter 1, good communication can be achieved between the vibration meter 1 and the mobile terminal 2 even when a river or road crosses between the vibration meter 1 and the mobile terminal 2.

[0102] Furthermore, communication between the mobile terminal 2 and the vibration meter 1 is performed via a dedicated wireless line N1. Because communication between the mobile terminal 2 and the vibration meter 1 is performed without using the public line N2, even if there is a problem with the public line N2, communication between the mobile terminal 2 and the vibration meter 1 is not affected by the problem. Furthermore, even if the measurement point MP is located in the mountains where the public line N2 cannot reach, communication between the mobile terminal 2 and the vibration meter 1 is possible. Furthermore, because communication between the mobile terminal 2 and the vibration meter 1 is performed via a dedicated wireless line N1 that does not pass other data, data delays can be avoided even if the volume of communication data including the detection output of the acceleration sensor 13 becomes large, and therefore vibration calculation information can be calculated smoothly.

[0103] Fig. 16 is a part of a flowchart showing the flow of vibration measurement processing executed in the vibration evaluation system 100 according to the second embodiment of the present invention, and corresponds to Fig. 6. Fig. 17 is a diagram showing an example of the display content of the display operation unit 22. Fig. 18 is a diagram showing a vibration measurement report (vibration measurement record) 291 according to the second embodiment.

[0104] In the second embodiment, the vibration evaluation system 100 measures microtremors at the measurement target point TP. In this embodiment, the vibration calculation information obtained by the mobile terminal 2 is the H / V spectrum (vibration spectrum). In these respects, the second embodiment differs from the first embodiment. The content of the vibration measurement report 291 (FIG. 18) created by the vibration evaluation system 100 also differs from the vibration measurement report 91 (FIG. 13). In other respects, the second embodiment is common to the first embodiment. Below, the second embodiment will be described, focusing on the differences from the first embodiment. Configurations equivalent to those in the first embodiment will be assigned the same reference numerals, and descriptions will be omitted.

[0105] The flow of vibration measurement using the vibration evaluation system 100 according to the second embodiment is the same as the flow shown in Figures 4 and 5. That is, in vibration measurement using the vibration evaluation system 100, a vibration measurement process S5 (Figures 4 and 5) and a vibration analysis process S6 (Figures 4 and 5) are executed. The flow of vibration measurement using the vibration evaluation system 100 will be described with reference to Figures 1, 2, and 4 to 6. Figures 16 to 18 will also be referenced as appropriate.

[0106] 16, in vibration analysis processing S6, control unit 21 creates data for executing vibration analysis (executes vibration analysis). Specifically, control unit 21 performs coordinate transformation on the detected waveform data (step S31 in FIG. 16). The coordinate transformation in step S31 in FIG. 16 is equivalent to step S21 in FIG. 6. Then, calculation unit 27 of control unit 21 calculates a Fourier spectrum based on the converted waveform data (step S32 in FIG. 16). Furthermore, calculation unit 27 of control unit 21 calculates an H / V spectrum based on the Fourier spectrum (step S33 in FIG. 16).

[0107] The control unit 21 of the portable terminal 2 ends the vibration analysis process S6, and displays a measurement end screen 266 shown in Fig. 17 on the display operation unit 22 of the portable terminal 2. Referring to Fig. 17, the measurement end screen 266 includes an H / V spectrum display section 267, a guide message 68, an accept key 69, and a remeasurement key 70. A graph of the H / V spectrum obtained in the vibration analysis process S6 is displayed in the H / V spectrum display section 267.

[0108] Referring to Fig. 17, the worker looks at the analysis results (H / V spectrum) of the vibration analysis displayed on the H / V spectrum display unit 267 and decides whether or not to redo the vibration measurement. If the worker determines that the analysis results are appropriate, the worker operates the accept key 69 (Fig. 17) on the display operation unit 22 (measurement end screen 266). If the worker determines that the analysis results are inappropriate and that remeasurement is necessary, the worker operates the remeasurement key 70 (Fig. 17) on the display operation unit 22 (measurement end screen 266). When the accept key 69 (Fig. 17) on the display operation unit 22 (measurement end screen 266) is operated, a vibration measurement report 291 is created on the mobile terminal 2.

[0109] 18, a vibration measurement report 291 includes a bibliographical information display 92, a waveform display 293, a calculation result display 294, a position information display 96, and an image display 97. The calculation result display 294 displays an H / V spectrum. In the example of FIG. 18, the image display 97 includes one captured image 98.

[0110] The waveform data after the coordinate conversion is displayed on the waveform display 293. The control unit 21 displays the waveform data after the coordinate conversion in step S31 in Fig. 16 as the waveform display 293. In the example of Fig. 18, the waveform display 293 displays waveform data of three axes.

[0111] After the vibration measurement report 291 is created, the database 38 is updated. Specifically, measurement data 39 corresponding to the current vibration measurement is added to the database 38. The database 38 has the same content as that shown in FIG. 15, but in this form, the calculation result file name 1 (B16), calculation result file name 2 (B17), and calculation result file name 3 (B18) are the site amplification characteristics file name, H / V result file name, and spectral density file name, respectively.

[0112] The second embodiment also provides the same effects as the first embodiment.

[0113] Fig. 19 is a schematic diagram for explaining vibration measurement using a vibration evaluation system 100 according to a third embodiment of the present invention. Fig. 20 is a flowchart showing the flow of vibration measurement using the vibration evaluation system 100, and is a diagram corresponding to Fig. 4. Fig. 21 is a flowchart showing the flow of vibration measurement processing executed in the vibration evaluation system 100, and is a diagram corresponding to Fig. 6. Fig. 22 is a diagram showing a vibration measurement report (vibration measurement record) 391 according to the third embodiment.

[0114] In the third embodiment, the vibration evaluation system 100 is a system that uses a vibrometer 1 to measure vibrations at a plurality of measurement points MP, analyzes the measurement data, calculates and estimates vibration calculation information at the measurement target point TP, and evaluates the vibration at the measurement target point TP. In this respect, the third embodiment differs from the first embodiment. The content of the vibration measurement report 391 (FIG. 22) created in the vibration evaluation system 100 also differs from the vibration measurement report 91 (FIG. 13). In other respects, the third embodiment is common to the first embodiment. The following description of the third embodiment will focus mainly on the differences from the first embodiment. The same reference numerals are used for configurations equivalent to those in the first embodiment, and descriptions thereof will be omitted.

[0115] In some cases, it may not be possible to place (install) the vibration meter 1 at the measurement target point TP, such as when the measurement target point TP is located within a site ST owned by another person. In such cases, the vibration meters 1 are placed at multiple measurement points MP near the measurement target point TP, and vibration calculation information at the measurement target point TP is estimated by calculation based on the measurement data.

[0116] In the example of FIG. 19, the vibration evaluation system 100 measures a plurality of measurement points MP (first measurement point MP A , second measurement point MP B and the third measurement point MP C ) vibration measurements were carried out at the first to third measurement points MP A ,MP B ,MP C Detected waveform data and the first to third measurement points MP A ,MP B ,MPC Based on at least one of the vibration levels (vibration calculation information) that are the calculation results of the above, the vibration level (vibration calculation information) at the measurement target point TP is inferred. In Fig. 19, the reference symbol "VS" indicates the source of vibration. The flow of vibration measurement using the vibration evaluation system 100 will be described with reference to Figs. 1, 2, and 4 to 6. Figs. 20 to 22 will be referred to as appropriate.

[0117] When measuring vibration, the operator first measures the vibration at the first measurement point MP (for example, the first measurement point MP A ) and place (install) the vibrometer 1 on the ground surface (step S41 in FIG. 20). Next, the worker operates the portable terminal 2 to start a vibration measurement application program that has been installed on the portable terminal 2. After the selection screen 41 (FIG. 7) is displayed on the display operation unit 22, the portable terminal 2 enters a standby state (step S42 in FIG. 20). When the start key 48 on the measurement standby screen 46 on the display operation unit 22 is operated in the standby state of the portable terminal 2, the control unit 21 of the portable terminal 2 executes the vibration measurement process S5 (FIGS. 5 and 20).

[0118] The worker also inputs the name of the measurement point MP (FIG. 1) into the input section 53 (FIG. 9) of the point name input screen 51 displayed on the display operation section 22 (step S43 in FIG. 20). The input information is stored in the memory section 24 (FIG. 2). The worker also captures images of the surroundings of the measurement point MP multiple times (for example, three times) using the camera 23 of the portable terminal 2 (step S44 in FIG. 20). The captured images captured by the camera 23 are stored in the image memory section 32 (FIG. 2). Steps S41 to S44 in FIG. 20 are the same as steps S1 to S4 in FIG. 4, respectively.

[0119] Thereafter, a measurement in progress screen 61 (FIG. 11) is displayed on the display operation unit 22. When a predetermined measurement time has elapsed since the start of vibration measurement (YES in step S14 in FIG. 5), the control unit 21 of the mobile terminal 2 ends the vibration measurement process S5 (FIGS. 5 and 20) at the measurement point MP. Even before the measurement time has elapsed (NO in step S14 in FIG. 5), if the end key 63 (FIG. 11) is operated, the control unit 21 ends the vibration measurement process S5 (FIGS. 5 and 20).

[0120] Next, the worker takes the vibration meter 1 and the portable terminal 2 and goes to the next measurement point MP (for example, the second measurement point MP B ) and then steps S41 to S44 and step S5 of FIG. 20 are executed at this measurement point MP. Steps S41 to S44 and step S5 of FIG. 20 are executed at the final measurement point MP (for example, the third measurement point MP C ) is repeated until the vibration measurement is completed (step S46 in FIG. 20).

[0121] When the vibration measurement at the final measurement point MP is completed (YES in step S46 in FIG. 20), the vibration analysis process S47 (FIGS. 20 and 21) is then executed. In the vibration analysis process S47, the control unit 21 executes the execution data for the vibration analysis (executes the vibration analysis) (similar to step S16 in FIG. 5).

[0122] 21, specifically, the control unit 21 performs coordinate conversion on the detected waveform data of each measurement point MP (step S51 in FIG. 21). The coordinate conversion in step S51 in FIG. 21 is equivalent to step S21 in FIG. 6. Then, the calculation unit 27 of the control unit 21 calculates the vibration level of each measurement point MP based on the converted waveform data (step S52 in FIG. 21). The vibration level obtained as a result of the calculation is stored in the analysis result storage unit 34. Furthermore, the calculation unit 27 of the control unit 21 extracts the maximum vibration level during the measurement period at each measurement point MP (step S53 in FIG. 21).

[0123] Furthermore, the calculation unit 27 of the control unit 21 estimates the vibration level at the measurement target point TP by calculation based on at least one of the converted waveform data and the vibration level at each measurement point MP (step S54 in FIG. 21). The vibration level at the measurement target point TP is stored in the analysis result storage unit 34. Furthermore, the calculation unit 27 of the control unit 21 extracts the maximum vibration level at the measurement target point TP (step S55 in FIG. 21).

[0124] After extracting the maximum vibration level at the measurement target point TP, the control unit 21 of the portable terminal 2 ends the vibration analysis process S47 (FIGS. 5 and 20), and displays a measurement end screen 66 (FIG. 12) on the display operation unit 22 of the portable terminal 2. The maximum vibration level at the measurement target point TP (i.e., the analysis result, for example, 45.0 dB) is displayed on the measured vibration level display unit 67 of the display operation unit 22 (step S48 in FIG. 20).

[0125] The worker looks at the vibration analysis results (maximum vibration level) displayed on the measured vibration level display unit 67 and decides whether or not to redo the vibration measurement. If it is decided not to redo the vibration measurement, the control unit 21 of the mobile terminal 2 creates a vibration measurement report 391 (step S50 in FIG. 20). The control unit 21 creates the vibration measurement report 391 according to a predetermined layout using an installed spreadsheet application program. Steps S47 to S50 in FIG. 20 are the same as steps S6 to S9 in FIG. 4, respectively. The created vibration measurement report 391 is stored in the memory unit 24 (FIG. 2). The vibration measurement report 391 stored in the memory unit 24 can be printed out or the like by the worker (measurer) when he or she returns to the office.

[0126] 22, vibration measurement report 391 includes bibliographic information display 92, each measurement point calculation result display 394, measurement target point calculation result display 395, and position information display 396. In the example of FIG. 22, vibration measurement report 391 does not include image display 97.

[0127] The numerical value calculated as the maximum vibration level at each measurement point MP is displayed on each measurement point calculation result display 394. In addition to the maximum vibration level at each measurement point MP, each measurement point calculation result display 394 may also display position information (latitude and longitude) at each measurement point MP.

[0128] The display 395 of the calculation result of each measurement point displays a numerical value estimated as the maximum vibration level at the measurement point TP.

[0129] The position information display 396 includes map information 396a. The map information 396a shows the measurement point MP, the measurement target point TP, the first measurement point MP on a surrounding map 396b. A , second measurement point MP B , 3rd measurement point MP C The vibration source VS is displayed by the position identification display 396c. In this embodiment, the position identification display 396c is displayed in color. The control unit 21 uses the position identification display 396c to identify each measurement point MP (first measurement point MP A , second measurement point MP B and the third measurement point MP C The control unit 21 transmits the position information (latitude and longitude) of the measurement target point TP input by the worker to the map providing server 3. The map providing server 3 creates map information 396a based on this position information and sends it to the portable terminal 2. The control unit 21 of the portable terminal 2 creates the map information 396a sent from the map providing server 3 as a position information display 396.

[0130] In the third embodiment, after the vibration measurement report 391 is created, the database 38 is not updated (created).

[0131] The third embodiment also provides the same effects as the first embodiment.

[0132] Although a number of embodiments of the present invention have been described above, the present invention can also be embodied in other forms.

[0133] For example, the second embodiment may be combined with the third embodiment. That is, in the third embodiment, a vibration spectrum may be estimated instead of a vibration level as the vibration calculation information of the measurement target point TP.

[0134] Furthermore, the portable terminal 2 may use the detection output of a GPS sensor built into the portable terminal 2 as the position information of the measurement point MP, instead of the GPS sensor 15 of the vibration meter 1. Then, the position information displays 96, 396 may be created using map information 96a, 396a created based on the position information.

[0135] Furthermore, the mobile terminal 2 and the vibration meter 1 may be connected via a public line (wireless line) instead of the dedicated wireless line N1. Furthermore, the mobile terminal 2 and the vibration meter 1 may be connected via a wired dedicated line instead of a wireless communication line. Of course, the mobile terminal 2 and the vibration meter 1 may also be connected via a public line (wired line).

[0136] The mobile terminal 2 is not limited to a tablet terminal, but may be a smartphone, a portable notebook computer, a PDA, or the like.

[0137] In each of the above-described embodiments, the vibration evaluation system 100 has been described as measuring and evaluating environmental vibrations and microtremors, but the vibration evaluation system 100 may also be used to measure and evaluate seismic motion, or to perform structural health monitoring (assessment of the soundness of structures) by measuring the microtremors of structures such as buildings and bridges.

[0138] The present invention is not limited to the contents of the above-described embodiment, and various modifications are possible within the scope of the claims. [Explanation of symbols]

[0139] 1: Vibration meter 2: Mobile devices 21: Control unit (record creation unit) 22:Display operation section (display section) 23: Camera 27: Arithmetic section 91: Vibration measurement report (vibration measurement record) 96: Location information display 97: Image display 98: Captured image 100: Vibration evaluation system 291: Vibration measurement report (vibration measurement record) 391: Vibration measurement report (vibration measurement record) 396: Location information display N1: Dedicated wireless line N2: Public line

Claims

1. a vibrometer including an acceleration sensor and a first communication unit that outputs a first detection output, which is a detection output of the acceleration sensor, to an outside; a portable terminal that is portable and capable of communicating with the vibration meter, the portable terminal having a calculation unit that calculates vibration calculation information based on the first detection output, and a display unit that displays the vibration calculation information that is the result of the calculation.

2. The vibration evaluation system according to claim 1 , wherein the mobile terminal further includes a record creating unit that creates a vibration measurement record that is a record of the vibration calculation information.

3. the vibrometer further comprises a position sensor; the first communication unit outputs a second detection output, which is a detection output of the position sensor, to an outside; The vibration evaluation system according to claim 2 , wherein the record creation unit obtains a position information indication relating to a position of the vibrometer based on the second detection output, and creates the vibration measurement record including the position information indication.

4. The vibration evaluation system according to claim 3 , wherein the location information display includes map information indicating the locations of the vibrometers.

5. the mobile terminal has a camera, 5. The vibration evaluation system according to claim 2, wherein the record creation unit creates the vibration measurement record including an image display including an image captured by the camera.

6. 5. The vibration evaluation system according to claim 1, wherein the vibration calculation information includes at least one of a vibration spectrum calculated based on the first detection output and a vibration level calculated based on the first detection output.

7. The vibration evaluation system according to any one of claims 1 to 4, wherein the vibration evaluation system is a ground vibration evaluation system that evaluates ground vibration.

8. A vibration evaluation method for evaluating vibrations occurring at a measurement point using a vibrometer having an acceleration sensor and a first communication unit that outputs a first detection output that is a detection output of the acceleration sensor to an outside, and a portable terminal that has a display unit, is portable, and can communicate with the vibrometer, a calculation step in which the portable terminal calculates vibration calculation information based on the first detection output of the acceleration sensor; and displaying the vibration calculation information, which is a result of the calculation, on the display unit.

9. The vibration evaluation method according to claim 8 , wherein the vibration evaluation method is a ground vibration evaluation method for evaluating ground vibration.

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