Vibration monitoring device and vibration monitoring method

Abstract

The present invention provides a vibration monitoring device and a vibration monitoring method for more appropriately monitoring vibrations that occur in a building due to the movement of vehicles. [Solution] A vibration monitoring device 10 according to one embodiment of the present invention includes a processor 10a, which acquires a correspondence between the degree of vibration generated in a building T due to the movement of a vehicle and the vehicle's identification information, acquires the identification information of a vehicle that has passed a specified point associated with the building T, and outputs warning information when the identification information of a vehicle that has passed the specified point corresponds to the vehicle's identification information that corresponds to a degree of vibration above a threshold in the correspondence.

Description

[Technical Field]

[0001] The present invention relates to a vibration monitoring device and a vibration monitoring method, and more particularly to a vibration monitoring device and a vibration monitoring method for monitoring vibrations generated in a target building due to the movement of a vehicle. [Background technology]

[0002] In a building where vibration-resistant equipment, etc. is used inside, if vibrations originating from the environment around the building occur in the building, it will interfere with the use of the vibration-resistant equipment, etc. Therefore, it is necessary to monitor such vibrations. As a technology for monitoring vibrations occurring in a building due to the influence of the surrounding environment, for example, there is a vibration monitoring system described in Patent Document 1.

[0003] The vibration monitoring system 1 described in Patent Document 1 analyzes vibrations measured by a vibrometer installed near vibration-sensitive equipment in real time, and issues an alarm if the analysis result exceeds the vibration tolerance of the vibration-sensitive equipment. This makes it possible to prevent the use of the vibration-sensitive equipment from being affected by vibrations. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2007-71566 Summary of the Invention [Problem to be solved by the invention]

[0005] One environmental factor that can cause vibrations in a building is vehicles traveling near the building. When the system of Patent Document 1 is used to monitor vibrations caused by vehicles traveling, the vibrations are measured on the building side when they are actually occurring in the building. However, in this case, since vibrations are already occurring in the building, there is a possibility that there will not be enough time to take measures against the vibrations (for example, if the building uses vibration-suppressing equipment, measures to stop using the vibration-suppressing equipment, etc.).

[0006] Therefore, the present invention has been made in consideration of the above-mentioned problems, and its object is to provide a vibration monitoring device and a vibration monitoring method for more appropriately monitoring vibrations generated in buildings due to the movement of vehicles. [Means for solving the problem]

[0007] The above problem is solved by the vibration monitoring device of the present invention, which is a vibration monitoring device equipped with a processor, wherein the processor obtains a correspondence between the degree of vibration generated in a target building due to the movement of a vehicle and the vehicle's identification information, obtains the identification information of a vehicle that has passed a specified point associated with the target building, and outputs warning information if the identification information of a vehicle that has passed the specified point corresponds to the vehicle identification information that corresponds to a degree of vibration above a threshold in the correspondence. The vibration monitoring device of the present invention configured as described above outputs warning information when a vehicle that has passed a predetermined point associated with a target building is a vehicle that would cause vibrations above a threshold in the target building if it were to travel near the target building. This allows time to be secured for taking measures against the vibrations before the vehicle's movement causes vibrations above the threshold in the target building.

[0008] In addition, in the vibration monitoring device of the present invention, the processor may acquire a photographed image of a predetermined point and analyze the photographed image to acquire identification information of a vehicle that has passed through the predetermined point. With the above configuration, it is possible to obtain more appropriate (more reliable) information as vehicle identification information.

[0009] In the vibration monitoring device of the present invention, the threshold value may be a value determined according to the vibration tolerance of the equipment used in the target building. In this case, by using the vibration monitoring device of the present invention, it is possible to appropriately prevent the equipment used in the target building from being affected by vibration.

[0010] In the vibration monitoring device of the present invention, the degree of vibration occurring in the target building may be measured by a sensor. If the measurement result obtained by the sensor of the degree of vibration occurring in the target building due to the running of a vehicle having the same identification information as the first identification information included in the correspondence relationship is greater than the degree of vibration corresponding to the first identification information in the correspondence relationship, the processor may update the degree of vibration corresponding to the first identification information in the correspondence relationship to the measurement result. With the above configuration, for example, even if the vehicle is the same type, if there is a possibility that the degree of vibration generated in the target building will increase due to the vehicle's movement, the correspondence can be updated appropriately taking this into consideration.

[0011] In the vibration monitoring device of the present invention, the threshold value may be a value determined according to the type of work being performed in the target building. In this case, the processor may output warning information when the identification information of a vehicle that has passed through a predetermined point corresponds to the identification information of a vehicle that is experiencing vibrations that are equal to or greater than the threshold value according to the type of work being performed at the current time. With the above configuration, the threshold for vibration monitoring is determined according to the type of work being done within the target building, so that vibrations generated in the target building due to the movement of vehicles can be appropriately monitored to ensure that each task within the target building can proceed smoothly.

[0012] In addition, in the vibration monitoring device of the present invention, the processor may obtain a correspondence between the degree of vibration when a vehicle travels in an area closer to the target building than a specified point and the identification information of the vehicle that traveled in that area. With the above configuration, for example, the degree of vibration when a vehicle passes near a target building is measured in advance, and the measurement results are stored in association with the vehicle's identification information. As a result, when the same type of vehicle subsequently passes a predetermined point toward the target building, the degree of vibration that will be generated in the target building due to the vehicle's passing near the target building can be predicted based on the correspondence between the degree of vibration and the vehicle's identification information. As a result, if vibrations exceeding a threshold occur in the target building, it is possible to more reliably secure time to take measures.

[0013] Furthermore, according to the vibration monitoring method of the present invention, the above-mentioned problem is solved by the processor obtaining a correspondence between the degree of vibration generated in a target building due to the movement of a vehicle and the vehicle's identification information, the processor obtaining the identification information of a vehicle that has passed a specified point associated with the target building, and if the identification information of a vehicle that has passed the specified point corresponds to the vehicle identification information that corresponds to a degree of vibration above a threshold in the correspondence relationship, the processor outputs warning information. According to the vibration monitoring method described above, it is possible to appropriately monitor vibrations occurring in a building due to the movement of a vehicle. [Effects of the Invention]

[0014] According to the vibration monitoring device and vibration monitoring method of the present invention, it is possible to appropriately monitor vibrations occurring in a building due to the movement of a vehicle. [Brief explanation of the drawings]

[0015] [Figure 1] FIG. 1 is an explanatory diagram of a target building whose vibrations are monitored. [Figure 2] 1 is a diagram showing a vibration monitoring device and related equipment according to one embodiment of the present invention; [Figure 3] 1 is a diagram illustrating a hardware configuration of a vibration monitoring device according to an embodiment of the present invention. [Figure 4A] 10 is a diagram showing a correspondence relationship between vehicle identification information and the degree of vibration generated by the running of the vehicle; [Figure 4B] FIG. 10 is an explanatory diagram of updating of correspondence relationships. [Figure 5] FIG. 10 is a diagram showing a pre-processing flow of a vibration monitoring flow according to an embodiment of the present invention. [Figure 6] FIG. 2 is a diagram showing a monitoring process flow of a vibration monitoring flow according to an embodiment of the present invention. [Figure 7] FIG. 10 is a diagram illustrating an example of output of warning information. DETAILED DESCRIPTION OF THE INVENTION

[0016] A vibration monitoring device and a vibration monitoring method according to one embodiment of the present invention (hereinafter referred to as this embodiment) will be described below with reference to the accompanying drawings. In this specification, the concept of "device" includes not only a single device that performs a specific function, but also a combination of multiple devices that exist independently in a distributed manner but cooperate (link) to perform a specific function.

[0017] Furthermore, the basic data processing technologies (communication / transmission technologies, data acquisition technologies, data recording technologies, data processing / analysis technologies, image processing technologies, visualization technologies, etc.) required to realize the contents of this embodiment are well-known technologies, and therefore explanations thereof will be omitted.

[0018] <<Vibration Monitoring in This Embodiment>> In this embodiment, vibrations of a target building, particularly vibrations generated in the target building due to vehicles traveling near the target building, are monitored. The target building is, for example, a building in which vibration-damping equipment is used, and specific examples thereof include research buildings where tests and research are conducted using vibration-damping equipment, educational buildings where experiments and lectures are conducted using vibration-damping equipment, product manufacturing buildings where inspections and work are conducted using vibration-damping equipment, and medical buildings where medical procedures are conducted using vibration-damping equipment.

[0019] Vibration-sensitive equipment is equipment that must be used under conditions that minimize the effects of vibration, and specific examples include precision equipment such as electron microscopes and semiconductor manufacturing equipment, precision mass meters, etc. For vibration-sensitive equipment, the allowable vibration value (unit: dB) during use is predetermined.

[0020] In the following, we will use a building where an electron microscope is used indoors (hereinafter referred to as building T) as an example of a target building, and explain the case of monitoring vibrations that occur in building T due to the movement of a vehicle (hereinafter also referred to as vehicle-induced vibrations).

[0021] Explaining building T with reference to FIG. 1, a road (roadway) is provided in front of building T on which vehicle M can travel. Furthermore, railroad tracks (not shown) are laid near building T. In other words, vehicles that can cause vehicle-induced vibrations to building T are vehicles that travel outside building T and around building T, and include, for example, vehicle M traveling on the road in front of building T and trains traveling on the tracks around building T. Furthermore, vehicle M traveling on the road in front of building T includes ordinary vehicles, transport vehicles such as trucks, public transportation such as buses, towing vehicles such as tow trucks, and construction vehicles such as crane trucks, mixer trucks, and excavators. In addition, situations in which vehicle-induced vibrations occur in building T are not limited to when a vehicle M is traveling on the road in front of building T or when a train is traveling on the tracks around building T, but can also include other cases, such as when a vehicle M is traveling on a road near building T.

[0022] Furthermore, within building T (indoor space), multiple different tasks are performed using an electron microscope, which is a vibration-resistant device. Specifically, the task of viewing and observing an object through the electron microscope and the task of taking images of the object through the electron microscope are performed. These tasks are not performed constantly within building T, but are only performed during certain periods determined by the user of the electron microscope. Furthermore, the task of taking images of an object through the electron microscope requires greater suppression of vibration during work than the task of viewing an object through the electron microscope; in other words, the tolerance for vibration is lower during image taking work than during observation work.

[0023] <<Configuration example of vibration monitoring device and related devices according to this embodiment>> A vibration monitoring device according to this embodiment (hereinafter referred to as vibration monitoring device 10) and its related devices will be described with reference to Figures 2 and 3. Note that although Figure 2 shows one user terminal 20, in reality there are a number of user terminals 20 corresponding to the number of users who use the functions of the vibration monitoring device 10.

[0024] The vibration monitoring device 10 works in conjunction with a disaster monitoring system 12 to monitor vibrations in a building T, more specifically vibrations caused by vehicles. The disaster monitoring system 12 normally constantly monitors the condition of the building T, and in the event of a disaster such as an earthquake, identifies the level of damage to the building T, determines the need for evacuation or inspection of the building T depending on the level of damage, and issues an alert depending on the determination result. As shown in FIG. 2, the disaster monitoring system 12 includes an acceleration sensor 14 installed in the building T, a data logger 16 that collects the measurement results of the acceleration sensor 14, and a fixed camera 18.

[0025] The acceleration sensor 14 is a sensor that measures the degree of vibration occurring in the building T, and outputs the measurement result (strictly speaking, a signal according to the measurement result). Here, the degree of vibration means the magnitude of the vibration, and more specifically, corresponds to the maximum acceleration when the part of the building T where the acceleration sensor 14 is installed is displaced by the vibration. The number and locations of the acceleration sensors 14 installed in the building T can be set arbitrarily as long as they are suitable for monitoring vibrations occurring in the building T. Furthermore, the sensor that measures the degree of vibration occurring in the building T is not limited to an acceleration sensor, and other sensors, such as a displacement sensor or a vibration meter, may also be used.

[0026] The data logger 16 receives and stores the measurement results of the acceleration sensors 14 as needed. If multiple acceleration sensors 14 are installed in different locations in the building T and each acceleration sensor 14 outputs a measurement result at a different time, the data logger 16 stores the measurement results of each acceleration sensor 14, along with the ID and measurement date and time of the acceleration sensor 14. The information stored in the data logger 16, i.e., the measurement results of the acceleration sensors 14, is transmitted to the vibration monitoring device 10 and the user terminal 20 according to a set schedule. However, the data logger 16 does not necessarily have to be provided, and in that case, the measurement results of the acceleration sensor 14 may be transmitted directly to the vibration monitoring device 10 and the user terminal 20.

[0027] The fixed camera 18 is an outdoor web camera installed in or around the building T. Images captured by the fixed camera 18 are sent to the vibration monitoring device 10 and the user terminal 20 with the location of the image capture (more specifically, the location included in the angle of view of the fixed camera 18) and the date and time of the image capture attached. The images captured by the fixed camera 18 may be still images or moving images (live footage).

[0028] Furthermore, in this embodiment, the fixed camera 18 captures images of different locations during vibration monitoring (more specifically, the monitoring processing flow described later) and in the preparation stage therefor (more specifically, the pre-processing flow described later). Specifically, during vibration monitoring, the fixed camera 18 constantly captures images of a predetermined point set outside the building T. The predetermined point is a location associated with the building T, and more specifically, is a point slightly away from the building T, for example, about several hundred meters away from the building T. The predetermined point also includes a road connected to the road in front of the building T or a part of a railroad track passing around the building T.

[0029] During preparation before vibration monitoring, the fixed camera 18 photographs an area closer to the building T than the above-mentioned specified point, more specifically, photographs the vehicle M when the vehicle M is traveling on the road in front of the building T, and also photographs the train when the train is traveling on the tracks near the building T.

[0030] The vibration monitoring device 10 monitors vehicle-induced vibrations using the measurement results of the acceleration sensor 14 stored in the data logger 16 and images taken by the fixed camera 18. More specifically, the vibration monitoring device 10 monitors vehicle-induced vibrations as environmental vibrations by utilizing information obtained by the constant operation of the acceleration sensor 14, which is installed to identify the damage status of the building T when an earthquake occurs, in other words, disaster monitoring data.

[0031] The vibration monitoring device 10 is composed of a computer, such as a PC (Personal Computer), a workstation, or a server computer. The vibration monitoring device 10 may be composed of a single computer or multiple computers distributed in parallel. If the vibration monitoring device 10 is composed of a server computer, the server computer may be a server computer for an ASP (Application Service Provider), SaaS (Software as a Service), PaaS (Platform as a Service), or IaaS (Infrastructure as a Service). In this case, when necessary information is input into a client terminal, the server computer performs various processes and calculations based on the input information, and the calculation results are output on the client terminal side. This allows the functions of the server computer, which is the vibration monitoring device 10, to be used on the client terminal side.

[0032] As shown in FIG. 3, the computer constituting the vibration monitoring device 10 includes a processor 10a, a memory 10b, a storage 10c, and a communication interface 10d.

[0033] The processor 10a is composed of, for example, a CPU (Central Processing Unit), an MPU (Micro-Processing Unit), an MCU (Micro Controller Unit), a GPU (Graphics Processing Unit), a DSP (Digital Signal Processor), a TPU (Tensor Processing Unit), an NPU (Neural network Processing Unit), or an ASIC (Application Specific Integrated Circuit).

[0034] The memory 10b is configured by semiconductor memory such as a ROM (Read Only Memory) and a RAM (Random Access Memory). The memory 10b also stores, as software, a program for an operating system (OS) and an application program for vibration monitoring. These programs are read and executed by the processor 10a, causing the computer constituting the vibration monitoring device 10 to function as the vibration monitoring device 10, specifically, to execute a series of processes related to vibration monitoring.

[0035] The storage 10c is configured by, for example, a flash memory, a hard disc drive (HDD), a solid state drive (SSD), a flexible disc (FD), a magneto-optical disc (MO disc), a compact disc (CD), a digital versatile disc (DVD), a secure digital card (SD card), a universal serial bus memory (USB memory), etc. The storage 10c stores data required for monitoring vibrations of the building T, specifically, table data (see FIGS. 4A and 4B) indicating the correspondence between vehicle identification information and the degree of vibration caused by the vehicle. The storage 10c may be built into the computer main body constituting the vibration monitoring device 10, or may be attached to the computer main body in an external form. The storage 10c may also be configured by an external computer (for example, a cloud server) communicably connected to the computer main body constituting the vibration monitoring device 10.

[0036] The communication interface 10d may be configured, for example, by a network interface card or a communication interface board. The computer configuring the vibration monitoring device 10 can communicate with other devices connected to the Internet or a mobile communication line via the communication interface 10d. Devices with which the vibration monitoring device 10 communicates include a user terminal 20.

[0037] The user terminal 20 is a communication terminal carried and used by a user of the building T, and is configured, for example, as a personal computer (PC), smartphone, mobile phone, tablet terminal, wearable terminal, or television receiver or display with data communication function. An application program for vibration monitoring (hereinafter, a monitoring app) is installed in the user terminal 20. The user of the building T can then use the information sent from the vibration monitoring device 10 by starting the monitoring app on the user terminal 20. For example, when warning information, which will be described later, is sent from the vibration monitoring device 10, the user of the building T, specifically, a person working in the building T using vibration-disturbing equipment, checks the warning information through the user terminal 20 and takes that as an opportunity to stop working using the vibration-disturbing equipment.

[0038] <<Vibration Management Flow According to This Embodiment>> Next, a vibration monitoring flow, which is a data processing flow using the vibration monitoring device 10 described above, will be described. In the following explanation, the case of monitoring vibrations (vibrations caused by vehicles) occurring in a building T due to the running of a vehicle will be taken as an example.

[0039] The vibration monitoring flow employs the vibration management method of the present invention. That is, each step in the vibration monitoring flow corresponds to each element constituting the vibration monitoring method of the present invention. Furthermore, at each step in the vibration monitoring flow, data processing corresponding to that step is executed by processor 10a provided in a computer constituting vibration monitoring device 10. The vibration monitoring flow described below is an example, and unnecessary steps may be deleted, new steps may be added, or the order in which steps are performed may be changed, without departing from the spirit of the present invention.

[0040] In this embodiment, the vibration monitoring flow is made up of a pre-processing flow shown in Fig. 5 and a monitoring processing flow shown in Fig. 6. Each processing flow will be explained below.

[0041] (Pre-processing flow) The pre-processing flow is executed before the monitoring processing flow, and by executing the pre-processing flow, the vibration monitoring device 10 (more specifically, the processor 10a of the computer that constitutes the vibration monitoring device 10) acquires the table data shown in Figures 4A and 4B.

[0042] The pre-processing flow is executed every time a vehicle travels on the road in front of building T or on the railroad tracks near building T. Specifically, when a vehicle travels (passes) on the road in front of building T or on the railroad tracks near building T, the vehicle is photographed by fixed camera 18, and the photographed image is transmitted to vibration monitoring device 10. Processor 10a (hereinafter simply referred to as processor 10a) of a computer constituting vibration monitoring device 10 receives the photographed image from fixed camera 18 via a network, thereby acquiring a photographed image of the vehicle that traveled on the road in front of building T or on the railroad tracks near building T (S001). The acquired photographed image is accompanied by information on the photographing location and the photographing date and time.

[0043] Next, the processor 10a analyzes the acquired photographed image to acquire identification information of the vehicle appearing in the photographed image (S002). A known image analysis technique can be used to acquire the identification information of the vehicle from the photographed image, and specifically, an object recognition technique or the like may be applied.

[0044] The vehicle identification information includes vehicle-specific identification information such as the vehicle type (model), vehicle license plate number, and the vehicle's appearance, etc. In the following, an example will be described in which the vehicle identification information is the vehicle type.

[0045] When the processor 10a performs the above-mentioned step S001, it reads out the measurement results of the acceleration sensor 14 stored in the data logger 16 that have the same date and time as the captured image. This allows the degree of vibration (i.e., vehicle-induced vibration) that has occurred in the building T due to a vehicle traveling on the road in front of the building T or on the railroad tracks near the building T to be identified (S003).

[0046] Then, the processor 10a associates the vehicle identification information acquired in step S002 with the degree of vibration (vibration caused by the vehicle) identified in step S003 (S004). As a result, a record for one type of vehicle is generated regarding the correspondence between vehicle identification information and vibration degree. Then, when a new vehicle runs on the road in front of the building T or on the tracks near the building T, steps S001 to S004 are repeated, and each time, the above record is added. As a result, table data indicating the correspondence between vehicle identification information and vibration degree is acquired, as shown in FIG. 4A.

[0047] The table data acquired in this embodiment indicates the correspondence between the degree of vibration when a vehicle travels in an area closer to building T than a specified point associated with building T (specifically, the road in front of building T or the railroad tracks near building T) and the identification information of the vehicle that traveled in that area.

[0048] In addition, the processor 10a determines whether the vehicle identification information acquired in step S002 (hereinafter referred to as the current identification information) is the same as identification information acquired in the past, i.e., identification information already included in the above correspondence relationship (hereinafter referred to as the first identification information) (S005).

[0049] If the current identification information is the same as the first identification information, the processor 10a further determines whether the current measurement result (i.e., the degree of vibration identified in step S003) is greater than the degree of vibration corresponding to the first identification information in the above correspondence relationship (S006). The current measurement result is the measurement result when the acceleration sensor 14 measures the degree of vibration caused in the building T by the running of the vehicle identified by the current identification information.

[0050] If the current measurement result is greater than the degree of vibration corresponding to the first identification information, the processor 10a updates the degree of vibration corresponding to the first identification information in the above correspondence relationship to the current measurement result (S007), as shown in Fig. 4B. In this manner, in this embodiment, when a vehicle with the same identification information as the first identification information runs on the road in front of the building T or on the railroad tracks around the building T, if the degree of vibration generated in the building T by the running of the vehicle is greater than the degree of vibration when the vehicle with the first identification information ran in the past, the above table data is updated (overwritten).

[0051] To explain this with a specific example, suppose that the degree of vibration of building T when a dump truck previously drove along the road in front of building T is already stored in the table data, and the same dump truck drives along the road in front of building T again. If the degree of vibration caused to building T by the driving of the dump truck at this time (i.e., the current measurement result) is greater than the degree of vibration associated with the dump truck stored in the table data, the degree of vibration associated with the dump truck is updated to the current measurement result, as shown in FIG. 4B. This causes the degree of vibration stored in the table data to be managed at a larger value. As a result, the monitoring processing flow can evaluate (predict) vehicle-induced vibrations occurring in building T on the safe side.

[0052] (Monitoring process flow) The monitoring process flow is executed after the above-mentioned table data is acquired by the pre-processing flow, and by executing the monitoring process flow, vehicle-induced vibrations occurring in the building T can be monitored.

[0053] In the monitoring process flow, a fixed camera 18 takes an image of a predetermined point slightly away from the building T, and the captured image is transmitted as needed to a computer constituting the vibration monitoring device 10. The processor 10a receives and acquires the captured image transmitted from the fixed camera 18 (S011). The processor 10a also analyzes the acquired captured image to acquire identification information of vehicles that have passed the predetermined point (S012).

[0054] Thereafter, the processor 10a identifies the degree of vibration corresponding to the vehicle identification information acquired in S012 based on the correspondence relationship indicated in the table data acquired in the pre-processing flow (if the correspondence relationship has been updated, the updated correspondence relationship) (S013). In other words, in this embodiment, if the identification information (specifically, the vehicle type) of a vehicle that has passed a predetermined point slightly away from building T is known, it is possible to determine the degree of vibration that will occur in building T due to the vehicle's movement before the vehicle actually travels on the road in front of building T or on the railroad tracks near building T.

[0055] The processor 10a also determines whether the vehicle identification information acquired in step S012 corresponds to the vehicle identification information corresponding to the degree of vibration equal to or greater than the threshold value in the correspondence relationship (if the correspondence relationship has been updated, the updated correspondence relationship) (S014). Taking the correspondence relationship shown in Fig. 4A as an example, if the threshold value is 60, in step S014, it is determined whether the identification information (vehicle type) of the vehicle that has passed the predetermined point is a dump truck or a truck. In the following description, the vehicle identification information corresponding to the degree of vibration equal to or greater than the threshold value will be referred to as corresponding identification information.

[0056] Here, the threshold value is a value determined according to the vibration tolerance of the vibration-damping equipment used in building T, specifically, the electron microscope. This makes it possible to monitor whether vibrations exceeding the vibration tolerance value are generated in building T due to vehicle traffic while the vibration-damping equipment is being used in building T, and as a result, it is possible to appropriately prevent the vibrations caused by vehicles from affecting the vibration-damping equipment.

[0057] The threshold value may also be changed depending on the type of work being performed using vibration-resistant equipment within building T. For example, if work is being performed to photograph an object to be observed through an electron microscope, a value equivalent to the vibration tolerance of the electron microscope may be used as the threshold value. On the other hand, if work is being performed to observe an object to be observed using an electron microscope, a value that is more lenient than the above-mentioned vibration tolerance may be used as the threshold value. In this case, in step S014, the processor 10a determines whether the vehicle identification information acquired in step S012 corresponds to the corresponding identification information corresponding to the type of work being performed in building T at present, in the above-mentioned correspondence relationship. The corresponding identification information corresponding to the type of work being performed at present is the vehicle identification information corresponding to the degree of vibration equal to or greater than the threshold corresponding to the type of work being performed at present.

[0058] Then, if the vehicle identification information acquired in step S012 corresponds to the corresponding identification information or the corresponding identification information corresponding to the current work content, the processor 10a outputs warning information to a user of the building T, more specifically, a person performing work using vibration-resistant equipment in the building T (S015). Specifically, the processor 10a transmits alert data to the user terminal 20 carried by the user of the building T. Upon receiving the alert data, the user terminal 20 displays a warning message as shown in Fig. 7 on the screen based on the data. The warning message is, for example, a message urging the user to stop working using the vibration-resistant equipment.

[0059] As a result, when it is predicted that vibrations above the threshold (vibrations caused by the vehicle) will occur in building T as a vehicle that has passed a predetermined point approaches building T, users of building T can be notified of this before the vibrations occur. As a result, even if work using vibration-resistant equipment is being carried out in building T when the vehicle passes the predetermined point, the work can be interrupted before vibrations above the threshold occur in building T. As a result, it is possible to avoid the effects of vibrations interfering with the work.

[0060] The manner in which the warning information is output is not limited to displaying a warning message on the screen of the user terminal 20, but may be other manners, for example, an alarm sound may be generated from a speaker or the like installed in a room where the user of the building T is present, or a warning light installed in a room where the user of the building T is present may be turned on.

[0061] The series of steps S011 to S015 described above are repeatedly performed during the period when monitoring of vehicle-induced vibrations is required, specifically, during the period when work using vibration-resistant equipment is being carried out in building T (S016). Then, when the period ends, the monitoring process flow ends.

[0062] <<Effectiveness of this embodiment>> According to this embodiment, it is possible to appropriately monitor vibrations that occur in a building T due to a vehicle traveling around the building T, i.e., vehicle-induced vibrations. Specifically, in this embodiment, identification information of a vehicle that has passed a predetermined point associated with building T is identified, and if the identification information corresponds to the identification information of a vehicle whose vehicle-induced vibrations are equal to or greater than a threshold, warning information is output. This allows users of building T to know whether the intensity of vehicle-induced vibrations is equal to or greater than a threshold before the vibrations actually occur in building T, and also allows them time to take measures against the vibrations.

[0063] Furthermore, according to this embodiment, it is not necessary to adapt the specifications and structure of the building T in which the vibration mitigating equipment is used to meet the requirements of the vibration mitigating equipment. Specifically, when the vibration mitigating equipment is used constantly or for long periods of time in a building, it is common to set the specifications of the building in accordance with the requirements of the vibration mitigating equipment (for example, vibration tolerance) by increasing the size of the building materials or installing a Tuned Mass Damper (TMD). On the other hand, if the period during which work using vibration-damping equipment is performed is limited, or if the time the vibration-damping equipment is used within the building is relatively short, adjusting the building specifications to meet the requirements of the vibration-damping equipment may result in over-specifying the building. In contrast, with this embodiment, if vibrations (vibrations caused by vehicles) of a magnitude that make it impossible to properly use the vibration-damping equipment occur in building T, warning information can be output to prompt the user to suspend work using the vibration-damping equipment. This eliminates the need to adjust the specifications of building T to meet the requirements of the vibration-damping equipment, and as a result, it is possible to avoid over-specifying building T and reduce the construction costs of building T.

[0064] <<Other embodiments>> While one embodiment of the vibration monitoring device and vibration monitoring method of the present invention has been described above, the above embodiment is merely an example for facilitating understanding of the present invention and is not intended to limit the present invention. In other words, the present invention can be modified and improved without departing from the spirit and scope of the present invention. Furthermore, it goes without saying that the present invention also includes equivalents thereof.

[0065] Furthermore, in the above embodiment, when the degree of vibration generated in building T due to the movement of a vehicle is equal to or greater than a threshold, warning information is output, and specifically, a warning message is displayed or a warning sound is played to urge the user of building T to suspend work using the vibration-suppressing device. In the above embodiment, the user of building T who has confirmed the warning information suspends the work using the vibration-suppressing device. However, this is not limited to this, and when the vibration-suppressing device is a remotely controllable device, the vibration monitoring device 10 may remotely control the vibration-suppressing device to forcibly stop the vibration-suppressing device and suspend the work, on the condition that the degree of vibration generated in building T due to the movement of a vehicle is equal to or greater than a threshold.

[0066] In the above embodiment, a photographed image of the vehicle is acquired and analyzed to acquire (identify) the vehicle's identification information, but the present invention is not limited to this. For example, text or symbols indicating the vehicle's identification information may be input via an input device (e.g., an input device connected to a computer constituting the vibration monitoring device 10), and the vehicle's identification information may be acquired by receiving the input. Alternatively, a communication device mounted on the vehicle, such as an electronic control unit (ECU: Electric Control Unit), may transmit data indicating the vehicle's identification to the vibration monitoring device 10 via a network, and the vibration monitoring device 10 may receive the transmitted data from the vehicle to acquire the vehicle's identification information. However, if the vehicle identification information is obtained from a photographed image of the vehicle, more appropriate information, i.e., more reliable information, can be obtained as the vehicle identification information. From this perspective, the above embodiment is more preferable.

[0067] Furthermore, in the above embodiment, a threshold value set for the degree of vehicle-induced vibration may be determined for each of a plurality of tasks performed using vibration-inhibiting equipment in building T. Here, in the above embodiment, the plurality of tasks may be tasks performed using the same type of vibration-inhibiting equipment but with different content, or may be tasks performed using different types of vibration-inhibiting equipment. In other words, different vehicle-induced threshold values ​​may be set for tasks performed using vibration-inhibiting equipment K1 and tasks performed using vibration-inhibiting equipment K2. A common threshold may also be used for multiple tasks.

[0068] In the above embodiment, the measurement results of the acceleration sensor 14 are accumulated in the data logger 16, and a computer separate from the data logger 16 functions as the vibration monitoring device 10, reading out some of the measurement results from the data logger 16 and acquiring the measurement results. However, this is not limiting, and the computer constituting the vibration monitoring device 10 may also function as the data logger 16, in which case the measurement results of the acceleration sensor 14 are directly stored in the storage 10c of the vibration monitoring device 10.

[0069] In the above embodiment, the target building is a building where work using vibration-damping equipment is performed indoors. In this case, the effect of the present invention, that is, the effect of securing time to take measures against vibration caused by vehicles, is more significant. However, the present invention can also be applied to buildings where vibration-damping equipment is not used.

[0070] In the above embodiment, vibrations occurring in a target building due to vehicles traveling outside the target building are monitored, and identification information of vehicles passing through a predetermined point set outside the target building is acquired. However, the present invention is not limited to this, and can also be used to monitor vibrations occurring in a target building due to an indoor vehicle, such as an indoor forklift, traveling (moving) inside the building. In this case, the predetermined point associated with the target building (the point through which the vehicle to be photographed passes) may be set inside the target building.

[0071] It should be noted that, with regard to the above-described multiple embodiments (including the above-described modified examples), elements and features of each embodiment may be combined as appropriate. In other words, the configuration of any of the above-described multiple embodiments may be applicable to the other embodiments, and in such cases, the effects brought about by the configuration may be similarly achieved. [Explanation of symbols]

[0072] 10 Vibration monitoring device 10a processor 10b memory 10c Storage 10d Communication Interface 12 Disaster Monitoring System 14 Acceleration sensor (sensor) 16 Data Logger 18 Fixed camera (camera) 20 User terminal M vehicle T Building (Target Building)

Claims

1. A vibration monitoring device comprising a processor, The processor: Obtaining a correspondence relationship between the degree of vibration generated in the target building due to the running of a vehicle and the identification information of the vehicle; Acquire identification information of a vehicle that has passed through a predetermined point associated with the target building; A vibration monitoring device that outputs warning information when the identification information of a vehicle that has passed the specified point corresponds to the identification information of a vehicle that corresponds to the degree of vibration that is equal to or greater than a threshold value in the correspondence relationship.

2. The vibration monitoring device according to claim 1 , wherein the processor acquires a photographed image of the predetermined point and analyzes the photographed image to acquire identification information of a vehicle that has passed through the predetermined point.

3. The vibration monitoring device according to claim 1 , wherein the threshold value is a value determined according to a vibration tolerance of equipment used in the target building.

4. The degree of vibration occurring in the target building is measured by a sensor, 2. The vibration monitoring device of claim 1, wherein when the measurement result obtained by the sensor of the degree of vibration caused in the target building by the passage of a vehicle having the same identification information as the first identification information included in the correspondence relationship is greater than the degree of vibration corresponding to the first identification information in the correspondence relationship, the processor updates the degree of vibration corresponding to the first identification information in the correspondence relationship to the measurement result.

5. The threshold value is a value determined according to the content of work to be performed in the target building, 2. The vibration monitoring device according to claim 1, wherein the processor outputs the warning information when the identification information of a vehicle that has passed the specified point corresponds to the identification information of a vehicle that, in the correspondence relationship, corresponds to a degree of vibration that is equal to or greater than the threshold value according to the content of the work currently being performed.

6. The vibration monitoring device of claim 1 , wherein the processor acquires the correspondence between the degree of vibration when a vehicle travels through a range closer to the target building than the specified point and the identification information of the vehicle that traveled through the range.

7. The processor acquires a correspondence relationship between the degree of vibration generated in the target building due to the running of the vehicle and the identification information of the vehicle; a processor acquiring identification information of a vehicle that has passed through a predetermined point associated with the target building; A vibration monitoring method in which a processor outputs warning information when the identification information of a vehicle that has passed the specified point corresponds to the identification information of a vehicle that corresponds to a degree of vibration that is greater than or equal to a threshold value in the correspondence relationship.

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