JP6754522B2 - Sensor device for aerial work platforms, data collection system, and method for grasping the operating status of aerial work platforms - Google Patents

Description

The present invention relates to an aerial work platform sensor device for grasping the operating state of the aerial work platform at a construction site, a data collection system, and a method for grasping the operating state of the aerial work platform.

Site conditions at various construction sites to be used to check the impact of construction on the internal and external environment of the construction site, the arrangement status of construction machinery used for construction work at the construction site, the degree of progress against the plan of progress of construction work, etc. Vibration, noise, placement of construction machinery) needs to be understood.

For this reason, the person in charge who is obliged to grasp the situation, such as the site manager, is regularly patrolled in the construction site. Then, a method is generally used in which the person in charge observes the ever-changing state of the construction site with the naked eye, confirms and records the observed change in the state of the construction site, and grasps the change in the state inside and outside the construction site. There is.

However, at the construction site, work for various constructions is constantly being carried out at any location, and the site conditions inside and outside the construction site change from moment to moment. For this reason, in order to accurately grasp changes in the site conditions, as already mentioned, the person in charge constantly patrols the site for the purpose of confirming the site conditions at the construction site and recording the confirmation results. There must be. In this way, in a place where the person in charge is constantly patrolled in the site for confirmation, a large number of people are required, which leads to an increase in construction cost.

In order to suppress this increase in construction cost, when estimating the site situation at the construction site, the physical quantity corresponding to the measurement target of the site situation is measured data for the purpose of labor saving that does not require patrol of many persons in charge. Various types of sensor devices to be acquired as are arranged.

Then, the data collection device arranged in the construction site receives the measurement data transmitted from each of the different types of sensor devices, and the measurement data received by the data collection device is transmitted to the data management server, and the data management server. A system that accumulates measurement data for each sensor device is used. As a result, a person in charge such as a site manager can check the site conditions inside and outside the construction site where the sensor device is installed in real time by referring to the measurement data stored in the data management server.

Conventionally, as a means of confirming the site conditions inside and outside the construction site in real time, the strength of the radio waves transmitted by the sensor device can be checked without changing the position of the antenna of the data collection device in response to the progress of the building. A data collection system capable of easily collecting measurement data transmitted by a sensor device without making it expensive is disclosed (for example, Patent Document 1).

Japanese Unexamined Patent Publication No. 2014-146169

However, Patent Document 1 does not specifically describe grasping the operating state of the aerial work platform.

The present invention has been made in view of such circumstances, and is a sensor device for aerial work platforms and data collection capable of accurately grasping the operating state of aerial work platforms at a construction site with a simple configuration. The purpose is to provide a method for grasping the operating status of the system and the aerial work platform.

The present invention has been made to solve the above-mentioned problems.
The sensor device for aerial work platforms according to the present invention is
A vibration sensor installed on a workbench that moves up and down with respect to the aerial work platform.
When the acceleration measured by the vibration sensor exceeds a predetermined first threshold value, the normal flow for releasing the sleep state,
When the acceleration measured by the vibration sensor is equal to or higher than the predetermined second threshold value and exceeds the predetermined number of times within the predetermined first predetermined time, the operation is determined to be the operating state. ON judgment flow,
as well as,
When the acceleration measured by the vibration sensor is smaller than the predetermined first threshold value for a predetermined second predetermined time, the operation OFF determination flow for determining the non-operating state,
And the control unit that executes
It is characterized by having.

Further, the sensor device for aerial work platforms according to the present invention is
The number of measurements of acceleration per unit time in the operation ON determination flow is larger than the number of measurement of acceleration per unit time in the normal flow and the operation OFF determination flow.

Further, the data collection system according to the present invention is
The sensor device, which is arranged at a predetermined location at a construction site, acquires measurement data for grasping the operating state of the aerial work platform, and transmits the acquired measurement data by wireless output at time intervals.
When a person involved in construction work moving in the construction site enters an area where the radio of the sensor device can be received and receives the measurement data from the sensor device, the measurement received to the internal storage unit. A mobile terminal that writes and stores data,
When it is detected that the mobile terminal has reached a distance capable of wireless communication with itself, a measurement data acquisition device that reads the measurement data stored in the internal storage unit of the mobile terminal and a measurement data acquisition device.
It is characterized by having.

Further, the data collection system according to the present invention is
It also has a data server that stores the measurement data.
Each of the sensor devices
The measurement data for grasping the operating state of the work vehicle at a high place is measured, and the measurement data and the time information obtained by measuring the measurement data are written and stored in the measurement data storage unit inside the user, and the measurement data is stored at intervals. The measurement data and the time information are read from the measurement data storage unit and transmitted.
The measurement data acquisition device
The measurement data read from the plurality of mobile terminals is transmitted to the data server together with the sensor identification information indicating the sensor device added to the measurement data.
The data server
The supplied measurement data is classified for each sensor device according to the sensor identification information, and the measurement data is arranged in time series for each of the classified sensor devices using the time information, and the time of the state of the surrounding environment. It is characterized in that state measurement data indicating a change is generated and written to and stored in an internal state measurement data storage unit.

Further, the data collection system according to the present invention is
The mobile terminal
When the measurement data is received, a data reception completion signal indicating that the measurement data has been received is transmitted to the sensor device.
When the sensor device receives the data reception completion signal from the mobile terminal, the sensor device deletes the transmitted measurement data and time information from the measurement data storage unit.

Further, the data collection system according to the present invention is
The time interval at which the sensor device transmits the measurement data is set according to the speed of change in the state of the surrounding environment measured by the sensor device.

Further, the data collection system according to the present invention is
The mobile terminal
It is characterized in that it is carried by the person involved in the construction, who is the person in charge of managing the type of construction in charge at the construction site, which travels around the entire construction site for patrol multiple times a day.

Further, the data collection system according to the present invention is
The mobile terminal
It is characterized in that it is carried by the construction-related person who is a worker who performs work in the type of construction in charge at the construction site multiple times a day.

Further, the data collection method according to the present invention is
When the acceleration measured by the vibration sensor installed on the workbench that moves up and down with respect to the workbench body of the aerial work platform exceeds a predetermined first threshold value, the normal flow for canceling the sleep state and the normal flow.
When the acceleration measured by the vibration sensor is equal to or higher than the predetermined second threshold value and exceeds the predetermined number of times within the predetermined first predetermined time, the operation is determined to be the operating state. ON judgment flow and
When the state in which the acceleration measured by the vibration sensor is smaller than the predetermined first threshold value continues for the predetermined second predetermined time, the operation OFF determination flow for determining the non-operating state and the operation OFF determination flow.
It is characterized by having.

According to the sensor device for the aerial work platform, the data collection system, and the method for grasping the operating state of the aerial work platform according to the present invention, the operating state of the aerial work platform at the construction site can be grasped with high accuracy with a simple configuration. Is possible.

It is a conceptual diagram explaining the collection of the measurement data from the sensor apparatus using the data collection system by one Embodiment of this invention. It is a block diagram which shows the structural example of the sensor device 10 and the sensor device 11 in FIG. It is a figure which shows the structural example of the measurement data which the sensor device 10 transmits. It is a block diagram which shows the structural example of the mobile terminal 401, the mobile terminal 402, and the mobile terminal 403 in FIG. It is a block diagram which shows the structural example of the measurement data acquisition apparatus 500 in FIG. It is a block diagram which shows the configuration example of the data server 700 in FIG. It is a figure which shows the structural example of the state measurement data stored in the database 800. FIG. 5 is a sequence diagram of time-series processing of transmission / reception of measurement data in a sensor device, a mobile terminal, a measurement data acquisition device, and a data server 700. It is a figure which shows the aerial work platform of this embodiment. It is a figure which shows the flowchart of the operating state grasping method by the vibration detection of the aerial work platform of this embodiment. It is a figure which shows the subroutine of the operation determination program of the operation state grasping method of this embodiment. It is a schematic diagram of an example of the vibration waveform detected by the sensor device 11 of this embodiment.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a conceptual diagram illustrating the collection of measurement data from a sensor device using the data collection system according to the embodiment of the present invention.

FIG. 1 shows the configuration of the third floor F3 of an n (n = 1, 2, ...) Building (construction site) 100 under construction. Construction machinery M1, construction machinery M2, and construction machinery M3 are arranged on the 3rd floor F3 as an example, and work is performed according to their respective functions. The temperature of the construction machine M1 rises during operation, and the operating state can be estimated by monitoring this temperature. Further, the construction machine M2 and the construction machine M3 generate vibration during operation, and the operating state can be estimated by monitoring the intensity of the vibration.

Further, the data collection system in the present embodiment includes the sensor device 10, the sensor device 11, the sensor device 12, the mobile terminal 401, the mobile terminal 402, the mobile terminal 403, the measurement data acquisition device 500, and the sensors on the other floors on the third floor F3. It is composed of an apparatus, a measurement data acquisition apparatus, a data server 700, and a database 800. Here, mobile terminals such as the mobile terminal 401, the mobile terminal 402, and the mobile terminal 403 are carried by construction personnel who move within the construction site and perform work related to the construction of the construction site. For example, mobile terminals such as the mobile terminal 402 and the mobile terminal 403 are site managers (sites) who patrol the construction site to manage QCDS (Quality, Cost, Delivery, Safety). (Supervisor, etc.) Or, it is carried by construction personnel such as general workers who work and transport at construction sites. For this reason, mobile terminals such as the mobile terminal 402 and the mobile terminal 403 move together with the construction personnel when they newly enter the building site or move each floor of the building at the construction site. It is not a terminal that is fixedly operated on that floor.

Here, the site manager is responsible for quality control of whether or not the work performed by the worker is performed according to the design drawing for each work type (reinforcing bar work, formwork work, sash work, ceiling work, etc.). Price control to check the amount of money required for construction such as quality and number of workers, construction period management to check the progress of the type of construction in charge, whether the workers are working in a safe environment and condition (for example) , Is the scaffolding secured without any problems?) It is the person in charge of performing each of the safety management. The site manager needs to frequently manage (supervise) the work of each construction type in charge of directing the worker so as not to cause a problem in QCDS. For this reason, the site manager manages the part of the construction site where the work of the construction type in charge is being performed (not only confirmation but also transmission of instructions to solve any problems in the confirmation result to the worker). ), The construction site is toured multiple times a day. Therefore, the site manager moves in a wider range than the workers who perform general construction work, and patrols the construction site multiple times. As a result, the mobile terminal carried by the site manager has a high probability of receiving the data transmitted from the sensor device (sensor device 10, sensor device 11, etc.). In addition, regardless of whether or not the person in charge of carrying the mobile terminal is aware of it, it is necessary to acquire more measurement data of the state at the construction site other than the construction type in charge of the person in charge. Can be done.

In addition, the sensor devices on each floor will be changed in a timely manner according to the condition of the construction machine, the room temperature, the type of measurement data to be measured such as images of the construction site, or the progress of construction. It is not operated fixedly on the floor. Further, the measurement data data acquisition device 500 is not arranged on all the nth floors of the building 100, and is not arranged on the first floor or inside the building, and the construction personnel must pass through. You may place only one at the doorway or the office where you always stop by.

The sensor device 10 is attached to the construction machine M1. For example, the temperature of the construction machine M1 housing is measured at regular time intervals, and the measured temperature is used as measurement data and transmitted at regular intervals. At this time, the sensor device 10 does not specify the address of the transmission destination of the measurement data, and transmits the measurement data so that any communication device can receive the measurement data.

The sensor device 11 is attached to the construction machine M2, measures the vibration intensity (for example, the intensity of vibration acceleration) of the vibration of the housing of the construction machine M1 at regular intervals, and uses the measured vibration intensity as measurement data. Sends at regular intervals. Further, each of the sensor device 10 and the sensor device 11 transmits measurement data indicating the state of the measured environment according to the radio wave strength within the radio wave strength range (area) of the specified low power radio specified by the Radio Law. Further, each of the sensor device 10 and the sensor device 11 transmits the sensor device identification information and the time information together with the measurement data. Here, the sensor identification information is the same as the code of each sensor device, the sensor device 10 is 10, and the sensor device 11 is 11. The time information is the time when the measurement data is measured.

The shorter the fixed cycle for transmitting this transmission, the shorter the time interval for acquiring the measurement data, and the real-time performance of monitoring the change in the state (physical quantity) due to the measurement data is improved. However, there are some that the state of the object to be monitored does not change so quickly. Therefore, this constant cycle may be set according to the speed of change in the state of the object to be monitored. For example, depending on the level at which the physical quantity of the environment is to be managed, a predetermined time such as one hour cycle or four cycles per day is set, and the measurement data measured at that time is transmitted. In this case, the time interval for measuring the physical quantity is also changed according to this fixed cycle.

In this way, even if the fixed period in which each of the sensor device 10 and the sensor device 11 transmits the measurement data and the time interval for acquiring the measurement data from the measurement unit 111 are set to different values for each sensor device, the measurement data will be displayed. Since the sensor device identification information and the time information are added, the data server 700 can easily classify the measurement data for each sensor device and rearrange them in the order of measurement time. Further, each of the sensor device 10 and the sensor device 11 may acquire the measurement data at random time intervals and transmit the measurement data at random time intervals instead of the above-mentioned fixed cycle. good. Here, even if the measurement data is measured at a random time and transmitted, the time information is added to the measurement data as a time stamp, so that the time information is shown and the measurement data can be rearranged in the order of the measurement time. ..

The mobile terminal 401 is a mobile phone, a smartphone, a tablet terminal, or the like, and is within a range in which radio waves transmitted by the sensor device 10 can be transmitted / received (range in which radio waves can be transmitted / received) as the person involved in the construction carries the mobile terminal. The sensor device 10 transmits measurement data during the period of existence in a certain range 301. The mobile terminal 401 receives the measurement data transmitted by the sensor device 10 and writes it in its own internal storage unit (storage unit 423 described later) to store the measurement data. Each of the mobile terminal 402 and the mobile terminal 403 also performs the same operation as the mobile terminal 401 described above. Further, each of the mobile terminal 401, the mobile terminal 402, and the mobile terminal 403 receives the measurement data transmitted by the sensor device 11 itself during the period in which the radio wave transmitted by the sensor device 11 is within the receivable range 302. It is written in the internal storage unit and stored.

When the measurement data acquisition device 500 detects that the mobile terminal exists in the range 303, which is the range of data transmission / reception (distance range in which radio waves can be transmitted / received) with the mobile terminal due to the movement of construction personnel, the inside of the mobile terminal Read the measurement data of the sensor device stored in the storage unit of. Further, the measurement data acquisition device 500 transmits the measurement data read from the mobile terminal to the data server 700 via the communication line (for example, LAN (Local Area Network) wiring) 600. The data server 700 writes and stores the measurement data supplied from the measurement data acquisition device 500 in the database 800 as state measurement data.

Next, the measurement data acquisition process of the measurement data acquisition device 500 when the sensor device and the measurement data acquisition device 500 are located at a communicable distance will be described.

In FIG. 1, the measurement data acquisition device 500 performs a process of directly acquiring measurement data from the sensor device 12 when it is within a communicable distance from the sensor device 12. In FIG. 1, the receivable range 304 of the radio wave transmitted by the sensor device 12 and the receivable range 303 of the radio wave transmitted by the measurement data acquisition device 500 include the sensor device 12 and the measurement data acquisition device 500. It overlaps. On the other hand, the distance between the sensor device 10 and the sensor device 11 and the measurement data acquisition device 500 is such that radio waves cannot be transmitted and received.

In the case of FIG. 1, the measurement data acquisition device 500 receives the radio wave transmitted from the sensor device 12 and acquires the measurement data directly from the sensor device 12. Here, when transmitting, the sensor device 12 transmits the measurement data only to the measurement data acquisition device 500. That is, when the measurement data acquisition device 500 acquires the measurement data, it detects the mobile terminal existing in the communicable range and also detects the sensor device existing in the communicable range. When the measurement data acquisition device 500 detects the sensor device within the communicable range, it notifies the sensor device of its own address. The sensor device transmits the measurement data to the address of the supplied measurement data acquisition device 500. As a result, the measurement data transmitted by the sensor device is received only by the measurement data acquisition device 500. Therefore, the mobile terminal does not receive the measurement data from the sensor device even if it exists within the communicable range with the sensor device.

FIG. 2 is a block diagram showing a configuration example of the sensor device 10 (or the sensor device 11) in FIG. In FIG. 2, the sensor device 10 includes a measurement unit 111, a control unit 112, a measurement data storage unit 113, a wireless transmission / reception unit 114, and a battery 115.

The measurement unit 111 is a temperature sensor that measures the temperature, and outputs the measured measurement data to the control unit 112. In the case of the present embodiment, for example, since the physical quantity of the measurement target of the sensor device 10 is the temperature, the measurement unit 111 is a temperature sensor, and since the physical quantity of the measurement target of the sensor device 11 is the acceleration, the measurement unit 111 is an acceleration sensor. is there.

The control unit 112 reads the measurement data from the measurement unit 111 at regular time intervals, and reads the time when the measurement data is read from its own internal timer. The control unit 112 writes and stores the measurement data and the time information in which the measurement data is read in the measurement data storage unit 113 as a set in the measurement data storage unit 113. Further, when the control unit 112 is supplied with a periodic signal indicating that a certain period of time has elapsed since the previous measurement data was transmitted from the timer, the measurement data and time stored in the measurement data storage unit 113. Along with the information, it transmits its own sensor identification signal via the wireless transmission / reception unit 114. The radio transmission / reception unit 114 transmits radio waves at a value lower than the upper limit of the radio wave strength of the specified low power radio specified by the Radio Law, and transmits / receives data. The battery 115 supplies electric power for driving each of the above-mentioned parts.

FIG. 3 is a diagram showing a configuration example of measurement data transmitted by the sensor device 10.

The sensor device 10 measures the temperature as, for example, the state of the surrounding environment at the position where the sensor device 10 is arranged. FIG. 3A is a diagram showing measurement data that the sensor device 10 periodically transmits at a predetermined fixed cycle (for example, every 20 minutes). That is, the sensor device 10 adds sensor identification information to a set of measurement data measured within a fixed cycle and measurement time (measurement time t1, t2, t3, t4) that measures the measurement data, and transmits the measurement data. Further, in FIG. 3A, the measurement time is time information, which is set in advance at a predetermined time interval (for example, every 5 minutes) and shows the time for measuring the state of the surrounding environment as measurement data. FIG. 3B also shows the same configuration as that of FIG. 3A, and the measurement data and the measurement time (measurement times t5, t6, t7, t8) of the fixed cycle immediately after the fixed cycle of FIG. 3A are shown. ) Is shown.

FIG. 4 is a block diagram showing a configuration example of the mobile terminal 401, the mobile terminal 402, and the mobile terminal 403 in FIG.

In FIG. 4, each of the mobile terminal 401, the mobile terminal 402, and the mobile terminal 403 includes a wireless transmission / reception unit 421, a control unit 422, and a storage unit 423, respectively. Each of the mobile terminals installs the operation of the control unit 422 as an application program, and its own internal CPU (Central Processing Unit) or the like executes this application program to the sensor device 10 and the measurement data acquisition device 500. Performs processing such as sending and receiving measurement data.

Similar to the radio transmission / reception unit 114, the radio transmission / reception unit 421 transmits radio waves at a value lower than the upper limit of the radio wave strength of the specified low power radio specified by the Radio Law, and transmits / receives data. The control unit 422 writes and stores the measurement data, the time information, and the sensor identification information supplied from the wireless transmission / reception unit 421 in the storage unit 423. For example, the control unit 422 writes the measurement data shown in FIG. 3A received from the sensor device into the storage unit 423. When the control unit 422 receives not only the measurement data of the sensor device 10 but also the measurement data from another sensor device 11 or the like, the control unit 422 writes the measurement data to the storage unit 423 in correspondence with each sensor identification information. Remember it once.

FIG. 5 is a block diagram showing a configuration example of the measurement data acquisition device 500 in FIG.

In FIG. 5, the measurement data acquisition device 500 includes a wireless transmission / reception unit 501, a wired transmission / reception unit 502, a control unit 503, and a storage unit 504. Similar to the radio transmission / reception unit 114, the radio transmission / reception unit 501 transmits / receives radio waves at a value lower than the upper limit of the radio wave strength of the specified low power radio specified by the Radio Law, and transmits / receives data. The wired transmission / reception unit 502 is formed by a wired information communication network, for example, a wired LAN, and transmits / receives data via the data server 700 and the wired information / communication network.

The control unit 503 temporarily writes and stores the measurement data, the time information, and the sensor identification information supplied from the wireless transmission / reception unit 501 in the storage unit 504. Further, the control unit 503 reads the measurement data, the time information, and the sensor identification information from the storage unit 504 at predetermined time intervals, and outputs the measurement data, the time information, and the sensor identification information to the data server 700 via the wired transmission / reception unit 502. Further, since the control unit 503 receives the measurement data from the mobile terminal 401 or the like, the control unit 503 receives not only the measurement data of the sensor device 10 but also the measurement data from the other sensor device 11 or the like from the mobile terminal as in the mobile terminal. If so, the measurement data is written to the storage unit 504 in correspondence with each sensor identification information and temporarily stored.

FIG. 6 is a block diagram showing a configuration example of the data server 700 in FIG.

In FIG. 6, the data server 700 includes a wired transmission / reception unit 701, a control unit 702, a classification unit 703, and a rearrangement unit 704. The wired transmission / reception unit 701 transmits / receives data via the measurement data acquisition device 500 and the wired information communication network, similarly to the wired transmission / reception unit 502. The control unit 702 writes and stores the measurement data, the time information, and the sensor identification information in the measurement data collection area in the database 800 from the measurement data acquisition device 500 via the wired and wired transmission / reception units 701 of the LAN.

The classification unit 703 sequentially reads out the measurement data, time information, and sensor identification information written in the measurement data collection area, classifies the measurement data and time information for each sensor identification information, and classifies each of the classified sensor identification information. A processing file is generated, and once written in the measurement data collection area for each sensor in the database 800 and stored. The rearrangement unit 704 sequentially reads the measurement data and time information processing files from the sensor-specific measurement data collection area. Then, the rearrangement unit 704 rearranges the state measurement data for each sensor identification information in the measurement data storage area for each sensor by rearranging the measurement data in the order of the measured time based on the time information.

As a result, the rearrangement unit 704 rearranges the already accumulated measurement data and the newly supplied measurement data in chronological order, and is stored in the database 800 so that the measurement data is in the acquired time order. Edit and store measurement data. Further, in the database 800, the sensor device identification information and the construction machine identification information for identifying the construction machine are stored in a correspondence table associated with each other. That is, which construction device each of the sensor devices is installed in can be detected by the control unit 702 searching the corresponding table in the database 800.

FIG. 7 is a diagram showing a configuration example of state measurement data stored in the database 800. In FIG. 7, the database 800 stores (accumulates) state measurement data in which measurement data are arranged in the order of measured time for each sensor identification information that identifies the sensor device. As described above, the data server 700 once accumulates the measurement data supplied from the measurement data acquisition device 500 in the measurement data collection area for each sensor in the database 800, and the once accumulated measurement data is measured. The state measurement data is edited and stored by rearranging and storing in the order of the time.
According to the present embodiment, by the above-mentioned classification and rearrangement processing of the data server 700, the measurement data of the same sensor device received by different mobile devices are arranged in chronological order and stored in the database 800 as state measurement data. It will be accumulated.

Next, the sequence of transmitting and receiving measurement data in the sensor device, the mobile terminal, the measurement data acquisition device, and the data server 700 will be described with reference to the drawings. FIG. 8 is a sequence diagram of time-series processing of transmission / reception of measurement data in the sensor device, mobile terminal, measurement data acquisition device, and data server 700. In the following description, the movement of the measurement data transmitted from the sensor device 10 will be described as an example.

Step S1:
In the sensor device 10, the control unit 112 reads the measurement data output by the measurement unit 111 at predetermined time intervals, that is, at regular time intervals, based on the time measured by the timer inside the control unit 112, and measures the measurement time. At the same time, the measurement data storage unit 113 is written and stored.
Then, the control unit 112 reads the measurement data shown in FIG. 3 from the measurement data storage unit 113 at regular intervals based on the time measured by the timer inside the control unit 112, and wirelessly transmits and receives the measurement data together with the sensor identification information added to the control unit 112. It is transmitted from the unit 114. Here, when the control unit 112 does not acquire the transmitted measurement data from any of the mobile terminals (when the data reception completion signal is not received from the mobile terminal), the control unit 112 directly transmits the measurement data to the measurement data storage unit 113 without erasing the measurement data. And keep it in the accumulated state.

Step S2:
For example, when a construction worker carrying a mobile terminal 401 happens to enter the communicable distance range 301 of the sensor device 10 for a certain process, the sensor device 10 transmits measurement data after a certain period of time has elapsed. .. At this time, when the control unit 422 receives the measurement data transmitted from the sensor device 10 in the mobile terminal 401, it determines whether or not the terminal data indicating the end added to the end of the received measurement data has been received. I do. This terminal data is added as a delimiter of measurement data at regular intervals, and includes cycle identification information for identifying a fixed cycle. At this time, when the end data is added to the measurement data received from the sensor device 10, the control unit 422 writes and stores the measurement data in the storage unit 423 in correspondence with the sensor identification information of the sensor device 10.

Step S3:
When the terminal data is added to the received measurement data, the control unit 422 transmits a data reception completion signal including the cycle identification information to the sensor device 10 on the assumption that the measurement data of a fixed cycle has been normally received. .. As a result, in the sensor device 10, when the control unit 112 receives the data reception completion signal within the preset period, the control unit 112 deletes the measurement data of the fixed cycle indicated by the cycle identification information from the measurement data storage unit 113. Do. On the other hand, if the control unit 112 cannot receive the data reception completion signal within a preset period after transmitting the measurement data, the control unit 112 does not delete the transmitted measurement data and keeps the transmitted measurement data stored in the measurement data storage unit 113. Then, at the next transmission timing, the data is transmitted together with other fixed-cycle data.

Step S4:
In the measurement data acquisition device 500, the control unit 503 periodically transmits a confirmation signal via the wireless transmission / reception unit 501.

Step S5:
In the mobile terminal 401, the control unit 422 detects that the measurement data acquisition device 500 exists at a transmittable distance when the confirmation signal is supplied via the wireless transmission / reception unit 421.

Step S6:
When the control unit 422 detects that the measurement data acquisition device 500 exists within a transmittable distance, the control unit 422 reads the measurement data stored in the storage unit 423 together with the time information and the sensor identification information. Then, the control unit 422 adds the terminal data to the read measurement data, time information, and sensor identification information, and transmits the terminal data to the measurement data acquisition device 500 via the wireless transmission / reception unit 421.

As a result, in the measurement data acquisition device 500, when the control unit 503 receives the measurement data transmitted from the mobile phone 401, whether or not it has received the terminal data indicating the end added to the end of the received measurement data. Is judged. At this time, when the terminal data is added to the measurement data received from the mobile phone 401, the control unit 503 stores the measurement data in correspondence with the sensor identification information of the sensor device 10 added to the measurement data. Write to 504 and memorize it.

Step S7:
When the control unit 503 detects the terminal data added to the measurement data, the control unit 503 transmits a data reception completion signal indicating that the measurement data of the fixed period in which the terminal data is detected is normally received via the wireless transmission / reception unit 501. To the mobile terminal 401. In the mobile terminal 401, when the control unit 422 receives the above-mentioned data reception completion signal via the wireless transmission / reception unit 421, the control unit 422 stores the measurement data of a fixed cycle corresponding to the cycle identification signal added to the data reception completion signal. Delete from part 423.

Step S8:
Based on the time measured by the timer inside the control unit 503, when a predetermined time interval elapses in advance, the control unit 503 reads out the measurement data of each sensor device stored in the storage unit 504 and wires it to the data server. It is transmitted via the transmission / reception unit 502. As a result, in the data server 700, the control unit 702 temporarily writes and stores the measurement data received via the wired transmission / reception unit 701 in the measurement data collection area in the database 800.

Next, the classification unit 703 reads the measurement data at regular intervals stored in the measurement data collection amount area, and classifies the measurement data for each sensor device according to the sensor identification information. Then, the classification unit 703 writes and stores the classified measurement data at regular intervals in the sensor-specific measurement data collection area in the database 800, respectively, in correspondence with the sensor identification information. The rearrangement unit 704 sequentially reads the measurement data from the measurement data collection area for each sensor for each sensor identification information.

Further, the rearrangement unit 704 reads the state measurement data of the sensor identification information similar to the measurement data read from the measurement data collection area for each sensor from the database 800. Then, the rearrangement unit 704 compares the measurement time of the measurement data arranged in chronological order in the state measurement data with the measurement time of the measurement data read from the measurement data collection area for each sensor. The rearrangement unit 704 rearranges and rearranges the measurement time of the measurement data in the state measurement data and the measurement time of the measurement data read from the measurement data collection area for each sensor in the order of the measurement time. The arranged result is written and stored in the database 800 as the state measurement data after editing.

The processes shown in steps S1 to S8 described above are executed for each sensor identification information at regular time intervals, and time-series measurement data of each sensor device is accumulated in the database 800.

As described above, according to the present embodiment, even if the antenna position of the measurement data acquisition device 500 is not changed and the situation such as a shield in the building changes, the construction personnel carrying the mobile terminal. By arranging the antenna at the position where the sensor device passes, the data server 700 can easily collect the measurement data measured by the sensor device.

Further, according to the present embodiment, the measurement data transmitted by each sensor device at regular intervals is collected by a plurality of mobile terminals and supplied to the measurement data acquisition device 500, and the data server 700 is the same sensor. It is possible to generate state measurement data, which is time-series measurement data, by rearranging the measurement data supplied from each mobile terminal at regular intervals of the identification information in chronological order and collecting them.

Further, in each of the sensor devices, when the mobile terminal receives the measurement data measured at regular intervals and outputs the receipt / reception completion, it is deleted from its own storage unit, so that it is necessary to provide a useless storage capacity. The price can be reduced.

Further, in each of the sensor devices, since the transmission is transmitted at regular intervals and is received by the mobile terminal that happens to exist in the communicable area, it is compared with the configuration in which it is always determined whether or not the mobile terminal exists in the surroundings. As a result, the life of the battery (battery 115 in FIG. 2) can be extended.

Further, in the above-described embodiment, the configuration has been described as a configuration in which the sensor device 10 and the sensor device 11 transmit the measured measurement data only at a fixed cycle. However, a configuration may be added to the mobile terminal to transmit a control signal for transmitting the measurement data from the sensor device so that the measurement data can be arbitrarily acquired.

That is, a person involved in the construction carries a mobile terminal, invades the range where wireless communication of the sensor device holding the necessary measurement data is possible, and performs an operation of acquiring the data on the mobile terminal. Here, the construction personnel click, for example, the measurement data acquisition button displayed on the touch panel of the mobile terminal.

As a result, the control unit 112 of the mobile terminal transmits a control signal instructing the sensor device to transmit the measurement data held by the sensor device via the wireless transmission / reception unit 114. Then, when the sensor device receives this control signal, it transmits the measurement data stored inside to the mobile terminal. At this time, when the sensor device receives the data reception completion signal from the mobile terminal, as already described in the sequence diagram of FIG. 8, the sensor device erases the measurement data stored inside.

Next, in the present embodiment, the ambient temperature has been described as an example as the state (physical quantity) of the ambient environment measured by the sensor device 10, but various types of sensor devices are assumed.
For example, as the state of the surrounding environment measured by the sensor device, a vibration sensor for sensing (measuring) the operating state of the construction machine, a temperature sensor for sensing the temperature of the cast concrete, and sensing vibration and noise around the building. There are vibration sensors and noise sensors. Hereinafter, applications using each sensor will be described.

<Application example>
A sensor device including a vibration sensor (measurement unit 111) for the aerial work platform in order to grasp how much the aerial work platform (construction machine M2, etc.) placed for work at the construction site is operating. (Sensor device 11) is installed. This sensor device has the configuration shown in FIG. In this case, the sensor device 11 operates at regular time intervals, that is, it senses vibration from the measurement unit 111, which is a vibration sensor, and uses the sensed measurement time as time information, as described above, the measurement data storage unit 113. Write to and memorize.

Then, as already described, when the construction personnel move in the construction site, the mobile terminal enters within the range of communication with the sensor device 11 installed on the aerial work platform, and the sensor device Transfer the measurement data of 11 to itself. Further, when a person involved in the construction moves and the mobile terminal invades within the range of communication with the measurement data acquisition device 500, the measurement data is transferred from the mobile terminal to the measurement data acquisition device 500. The measurement data acquisition device 500 transmits measurement data acquired from a plurality of mobile terminals to the data server 700 via the LAN wiring 600. For example, the data server 700 is installed in a site office at a construction site.

The data server 700 generates state measurement data from the supplied measurement data, and displays the state measurement data for each sensor device on a display device (not shown). Here, the data server 700 reads the construction machine identification information corresponding to the sensor device identification information from the corresponding table of the database 800, and displays on the display device which state measurement data of the construction machine.

As a result, the user can grasp the operating state of all the aerial work platforms arranged at the construction site by the time change of the vibration data which is the measurement data indicated by the state measurement data displayed by the data server 700. It is possible to judge whether there is any bias in the arrangement of aerial work platforms. For example, if there is an aerial work platform that is generally in a low operating state or has an extremely low operating state in a plurality of aerial work platforms arranged at the same point, the manager of the site, which is a user, has a height at the same point. It is possible to reduce the number of aerial work platforms and realize processing to reduce costs.

In the present embodiment, a computer-readable record of a program for realizing the functions of the sensor device 10 in FIG. 2, the mobile terminal 401 in FIG. 4, the measurement data acquisition device 500 in FIG. 5, and the data server 700 in FIG. A process of controlling the operation of each device may be performed by recording on a medium, causing the computer system to read the program recorded on the recording medium, and executing the program.

The term "computer system" as used herein includes hardware such as an OS and peripheral devices. The "computer system" shall also include a homepage providing environment (or display environment) if a WWW system is used. Further, the "computer-readable recording medium" refers to a portable medium such as a flexible disk, a magneto-optical disk, a ROM, or a CD-ROM, or a storage device such as a hard disk built in a computer system. Further, a "computer-readable recording medium" is a communication line for transmitting a program via a network such as the Internet or a communication line such as a telephone line, and dynamically holds the program for a short period of time. In that case, it also includes the one that holds the program for a certain period of time, such as the volatile memory inside the computer system that becomes the server or client. Further, the above-mentioned program may be a program for realizing a part of the above-mentioned functions, and may be a program for realizing the above-mentioned functions in combination with a program already recorded in the computer system.

Next, a method of grasping the operating state by detecting the vibration of the aerial work platform will be described with a specific example.

FIG. 9 is a diagram showing an aerial work platform of the present embodiment.

Here, the 4 m type aerial work platform 1 as shown in FIG. 9 is applied. The aerial work platform 1 has a work vehicle main body 2 and a workbench 3 that moves up and down with respect to the work vehicle main body 2. The sensor device 11 including the vibration sensor (measurement unit 111) shown in FIG. 2 is installed on the workbench 3. The operating state is grasped by the control unit 112 shown in FIG. 2 of the sensor device 11.

The operating state of the aerial work platform 1 is grasped by the sensor device 11 installed on the workbench 3. In general, various heavy construction machines or machines that are sources of vibration are operating in the site. Therefore, it may not be possible to determine whether or not the vibration detected by the sensor device 11 installed on the aerial work platform 1 is the vibration of the source of the aerial work platform 1. Therefore, in the present embodiment, the operation of the aerial work platform 1 is determined by grasping the level of vibration when the aerial work platform 1 operates.

FIG. 10 is a diagram showing a flowchart of an operating state grasping method by detecting vibration of the aerial work platform of the present embodiment. FIG. 11 is a diagram showing a subroutine of an operation determination program of the operation state grasping method of the present embodiment.

In the method of grasping the operating state by detecting the vibration of the aerial work platform of the present embodiment, the normal flow is executed in steps 11 to 13, the operation ON determination flow is executed in steps 14 to 19, and the operation ON determination flow is executed in steps 20 to 26. Execute the operation OFF judgment flow. In the operation ON determination flow, the acceleration monitoring interval is shorter than the normal flow and the operation OFF determination flow. Therefore, in the operation ON determination flow, it is possible to perform highly accurate monitoring. In the normal flow and the operation OFF determination flow, the microcomputer can be put into a sleep state and the duration of the power supply can be extended.

Here, the terms used in the flowchart will be described.
“Interruption occurs” means that the control unit 112 in the sleep state is activated.
The “number of determinations” is the number of times the operation determination program is executed.
The "operation confirmation number of times" is a predetermined fixed value, and in the operation ON determination state, the "operation determination program" is repeatedly executed until the "determination number" reaches the "operation confirmation number of times".
The "operation count" is the number of times that the acceleration calculated by the operation determination program executed "operation confirmation determination count" by the control unit 112 exceeds the "operation determination acceleration threshold value" in the operation ON determination state.
The "operation confirmed number of times" is a predetermined fixed value that is determined to be an operating state when the operation is ON determined. When the "number of operations" exceeds the "number of confirmed operations", it is determined to be in the operating state.
The "interrupt threshold value" is a fixed value of a predetermined acceleration that activates the control unit 112 at the time of normal operation or operation OFF determination. When the acceleration exceeds the "interrupt threshold", the control unit 112 is activated. The interrupt threshold constitutes the first threshold.
The “operation determination acceleration threshold value” is a predetermined fixed value for determining whether the acceleration is in the operating state or the non-operating state with respect to the acceleration calculated by the control unit 112. The operation determination acceleration threshold value constitutes the second threshold value.

First, in steps 11 to 13, the normal flow is executed. In step 11, it is determined whether or not the current time is between 7:00 and 19:00 (ST11). In step 11, if the current time is not between 7:00 and 19:00, it is determined that the aerial work platform is not operating, and the grasp of the operating state is completed. In step 11, if the current time is between 7:00 and 19:00, the process proceeds to step 12. The current time determination range is not limited to between 7:00 and 19:00, and a predetermined time may be set.

In step 12, the acceleration is monitored (ST12). The monitoring interval is 6 times per second.

Next, in step 13, it is determined whether or not the acceleration measured by the vibration sensor is equal to or higher than a predetermined interrupt threshold value (ST13). In step 13, if the acceleration measured by the vibration sensor is not equal to or higher than the interrupt threshold value, it is determined that the aerial work platform is not operating, and the grasp of the operating state is completed. In step 13, if the acceleration measured by the vibration sensor is equal to or greater than the interrupt threshold value, the process proceeds to step 14.

Next, in steps 14 to 19, the operation ON determination flow is executed. In step 14, the interrupt generation is executed (ST14). When an interrupt occurs, the microcomputer in the sleep state is activated.

Subsequently, in step 15, the number of determinations is set to 0, the number of operations is set to 0, and the time is set to the current time (ST15).

Next, in step 16, the subroutine of the operation determination program shown in FIG. 11 is executed (ST16).

First, in step 61, the "number of determinations" is counted up to "the number of determinations + 1" (ST61). The number of determinations is the number of times the operation determination program is executed.

Subsequently, in step 62, acceleration monitoring is executed (ST62). The monitoring is performed at intervals of 100 times per second for a time obtained by dividing the reference 30 seconds by the predetermined number of operation confirmation determinations. The number of times the acceleration is measured per unit time in step 62 is larger than the number of times the acceleration is measured per unit time in the normal flow and the operation OFF determination flow. Further, the reference 30 seconds constitutes the first predetermined time.

Next, in step 63, it is determined whether or not the measured acceleration is larger than the operation determination acceleration threshold value (ST63). If the measured acceleration in step 63 is larger than the operation determination acceleration threshold value, the process proceeds to step 64. In step 63, if the measured acceleration is equal to or less than the operation determination acceleration threshold value, the subroutine of the operation determination program is terminated.

In step 64, the "number of operations" is counted up to "the number of operations + 1" (ST64). After that, the subroutine of the operation judgment program is terminated.

In step 17, it is determined whether or not the number of determinations is the same as the predetermined number of operation confirmation determinations (ST17). In step 17, if the number of determinations is the same as the number of operation confirmation determinations, the process proceeds to step 18. In step 17, if the number of determinations is different from the number of operation confirmation determinations, the process returns to step 16.

In step 18, it is determined whether or not the number of operations is equal to or greater than the predetermined number of confirmed operations (ST18). In step 18, if the number of operations is equal to or greater than the number of confirmed operations, the process proceeds to step 19. In step 17, if the number of operations is less than the confirmed number of operations, it is determined that the aerial work platform is not operating, and the grasp of the operating state is completed.

In step 19, recording is performed (ST19). The log records the date, time, and whether the operation is ON.

Next, in steps 20 to 26, the operation OFF determination flow is executed. In step 20, it is determined whether or not the current time is between 7:00 and 19:00 (ST20). In step 20, if the current time is not between 7:00 and 19:00, it is determined that the aerial work platform is not operating, and the operation status grasping is completed. In step 20, if the current time is between 7:00 and 19:00, the process proceeds to step 21.

In step 21, it is determined whether or not the current time has passed 30 minutes from the time recorded in the log in step 19 (ST21). In step 21, if the current time has passed 30 minutes from the time recorded in the log in step 19, the process proceeds to step 22. In step 21, if the current time does not elapse 30 minutes from the time recorded in step 19, the process proceeds to step 23. The 30 minutes here constitutes the second predetermined time. The time does not have to be 30 minutes and may be selected as appropriate.

In step 22, recording is performed (ST22). The date, time, and operation OFF state are recorded in the log.

In step 23, the acceleration is monitored (ST23). The monitoring interval is 6 times per second.

Next, in step 24, it is determined whether or not the acceleration measured by the vibration sensor is equal to or higher than a predetermined interrupt threshold value (ST24). In step 24, if the acceleration measured by the vibration sensor is not equal to or greater than the interrupt threshold value, the process returns to step 20. In step 24, if the acceleration measured by the vibration sensor is equal to or greater than the interrupt threshold value, the process proceeds to step 25.

In step 25, interrupt generation is executed (ST25). When an interrupt occurs, the microcomputer in the sleep state is activated.

Subsequently, in step 26, the time is set to the current time (ST26). Then, the process returns to step 20.

FIG. 12 is a schematic diagram of an example of the vibration waveform detected by the sensor device 11 of the present embodiment.

As shown in FIG. 12, the sensor device 11 always senses a relatively low level of vibration. This low level of vibration is due to heavy construction equipment, work elevators, etc. In the present embodiment, the interrupt threshold value is set to 500 mG in advance. The interrupt threshold value is not limited to 500 mG, and is preferably selected from 400 mG to 700 mG depending on, for example, the vehicle type or work location of the aerial work platform 1.

During the period (1) shown in FIG. 12, since the measured acceleration continued for an interrupt threshold value of 500 mG or more for a predetermined time or more, it is judged to be in operation. During the period (2), the measured acceleration is smaller than the interrupt threshold value of 500 mG for a predetermined time or longer, so that it is judged to be non-operating. In the present embodiment, the predetermined time is set to 30 minutes. The predetermined time is not limited to 30 minutes, and is preferably selected according to, for example, the vehicle type or work place of the aerial work platform 1.

During the period (3), the measured acceleration remains smaller than the interrupt threshold value of 500 mG for a short time. However, since the predetermined time has not continued, it is not determined to be in the non-operating state, but to be in the operating state.

During the period (4), the measured acceleration is smaller than the interrupt threshold value of 500 mG for a predetermined time, so it is judged to be a non-operating state. During the period (5), the measured acceleration remains larger than the interrupt threshold value of 500 mG for a short time. However, since the predetermined time has not continued, it is not determined to be in the operating state, but is determined to be in the non-operating state. Here, the predetermined time of (5) is set to 30 seconds.

In the example shown in FIG. 12, the interrupt threshold value and the operation determination acceleration threshold value are set to the same 500 mG. However, different values may be set in advance for the interrupt threshold value and the operation determination acceleration threshold value.

As described above, in the sensor device for the high-altitude work vehicle of the present embodiment, the vibration sensor installed on the work table that moves up and down with respect to the work vehicle main body of the high-altitude work vehicle and the acceleration measured by the vibration sensor are predetermined. When it becomes 1 threshold value or more, the normal flow for releasing the sleep state and the state where the acceleration measured by the vibration sensor becomes equal to or more than the predetermined second threshold value are within the predetermined first predetermined time. When the number of times exceeds a predetermined number of times, the operation ON determination flow for determining the operating state and the state in which the acceleration measured by the vibration sensor is smaller than the predetermined first threshold value are the predetermined second. Since it is equipped with a control unit that executes an operation OFF determination flow that determines that it is in a non-operating state when it continues for a predetermined time, it is possible to grasp the operating state of an aerial work vehicle at a construction site with high accuracy with a simple configuration. It will be possible.

Further, in the sensor device of the aerial work platform of the present embodiment, the number of measurements of acceleration per unit time in the operation ON determination flow is larger than the number of measurement of acceleration per unit time in the normal flow and the operation OFF determination flow. Since there are many, it is possible to grasp the operating state of the aerial work platform at the construction site with a simple configuration and with higher accuracy.

In addition, the data collection system of the present embodiment is arranged at a predetermined location at the construction site, acquires measurement data for grasping the operating state of the work vehicle at a high place, and wirelessly outputs the acquired measurement data at time intervals. When the sensor device transmitted by the device and the construction personnel who move in the construction site carry it, enter the area where the radio of the sensor device can be received, and receive the measurement data from the sensor device, the internal storage unit When it is detected that the mobile terminal that writes and stores the received measurement data and the mobile terminal has reached a distance that allows wireless communication with itself, the measurement data that the mobile terminal reads the measurement data stored in the internal storage unit. Since it has an acquisition device, a user carrying a mobile terminal unknowingly measures the sensor device from each of the sensor devices in the vicinity of the moving location by moving while performing his / her own work at the construction site. When data is received and moved to the vicinity of the measurement data acquisition device, this measurement data acquisition device reads the measurement data from the mobile terminal, so the person in charge does not have to collect the measurement data as in the past, and the measurement data is acquired. It is possible to easily collect measurement data from each of the sensor devices without adjusting the position of the antenna of the device and increasing the radio wave intensity transmitted by the sensor device.

Further, the data collection system of the present embodiment further has a data server that accumulates measurement data, and each of the sensor devices measures the measurement data for grasping the operating state of the work vehicle at a high place, and is inside itself. The measurement data acquisition device writes the measured time information together with the measurement data in the measurement data storage unit and stores it, reads the measurement data and time information from the measurement data storage unit at time intervals, and transmits the measurement data. The measurement data read from a plurality of mobile terminals is transmitted to the data server together with the sensor identification information indicating the sensor device added to the measurement data, and the data server transmits the supplied measurement data by the sensor identification information. Classify by the sensor device, arrange the measurement data in time series using the time information for each classified sensor device, generate the state measurement data showing the time change of the state of the surrounding environment, and generate the internal state measurement data. Since it is written and stored in the storage unit, measurement data can be easily collected and time-series state measurement data can be generated.

Further, in the data collection system of the present embodiment, when the mobile terminal receives the measurement data, a data reception completion signal indicating that the measurement data has been received is transmitted to the sensor device, and the sensor device sends the measurement data from the mobile terminal. When the data reception completion signal is received, the transmitted measurement data and time information are deleted from the measurement data storage unit, so that it is not necessary to provide a wasteful storage capacity and the price can be reduced.

Further, in the data collection system of the present embodiment, since the time interval at which the sensor device transmits the measurement data is set according to the speed of change in the state of the surrounding environment measured by the sensor device, it is always in the surroundings. It is possible to extend the life of the battery as compared with a configuration in which it is determined whether or not a mobile terminal exists.

In addition, the data collection system of the present embodiment is a construction-related person who manages the type of construction in charge at the construction site, in which the mobile terminal moves around the entire construction site for patrol multiple times a day. Since it is carried by a person, it is possible to extend the life of the battery by adjusting the time interval for transmitting the measurement data to the patrol time.

Further, in the data collection system of the present embodiment, since the mobile terminal is carried to the construction personnel who are the workers who perform the work in the type of construction in charge at the construction site multiple times a day, the measurement data It is possible to extend the life of the battery according to the time of work.

Further, the method of grasping the operating state of the high-altitude work vehicle of the present embodiment is the first method in which the acceleration measured by the vibration sensor installed on the work table that moves up and down with respect to the work vehicle main body of the high-altitude work vehicle is predetermined. When the value exceeds the threshold value, the normal flow for releasing the sleep state and the state in which the acceleration measured by the vibration sensor becomes equal to or higher than the predetermined second threshold value are within the predetermined first predetermined time. When the number of times exceeds a predetermined number of times, the operation ON determination flow for determining the operating state and the state in which the acceleration measured by the vibration sensor is smaller than the predetermined first threshold value are the predetermined second. Since it has an operation OFF determination flow for determining that it is not in operation when it continues for a predetermined time, it is possible to grasp the operation state of the aerial work vehicle at the construction site with high accuracy with a simple configuration.

Although the embodiment of the present invention has been described in detail with reference to the drawings, the specific configuration is not limited to this embodiment, and the design and the like within a range not deviating from the gist of the present invention are also included.

1 ... Aerial work platform 2 ... Work vehicle body 3 ... Workbench 10, 11 ... Sensor device 100 ... Building 111 ... Measurement unit (vibration sensor)
112,422,503,702 ... Control unit 113 ... Measurement data storage unit 114,421,501 ... Wireless transmitter / receiver 115 ... Battery 301,302,303 ... Range 401,402 ... Mobile terminal 423,504,704 ... Storage unit 500 … Measurement data acquisition device 502, 701… Wired transmission / reception unit 700… Data server 703… Classification unit 704… Rearrangement unit 800… Database M1, M2… Construction machinery

Claims (9)

A vibration sensor installed on a workbench that moves up and down with respect to the aerial work platform.
When the acceleration measured by the vibration sensor exceeds a predetermined first threshold value, the normal flow for releasing the sleep state,
When the acceleration measured by the vibration sensor is equal to or higher than the predetermined second threshold value and exceeds the predetermined number of times within the predetermined first predetermined time, the operation is determined to be the operating state. ON judgment flow,
as well as,
When the acceleration measured by the vibration sensor is smaller than the predetermined first threshold value for a predetermined second predetermined time, the operation OFF determination flow for determining the non-operating state,
And the control unit that executes
A sensor device for aerial work platforms, which is characterized by being equipped with. The first aspect of claim 1, wherein the number of times of measurement of acceleration per unit time in the operation ON determination flow is larger than the number of times of measurement of acceleration per unit time in the normal flow and the operation OFF determination flow. Sensor device for aerial work platforms. According to claim 1 or 2, each of the measurement data is arranged at a predetermined place of a construction site, measurement data for grasping the operating state of the aerial work platform is acquired, and the acquired measurement data is transmitted by wireless output at time intervals. The sensor device described and
When a person involved in construction work moving in the construction site enters an area where the radio of the sensor device can be received and receives the measurement data from the sensor device, the measurement received to the internal storage unit. A mobile terminal that writes and stores data,
When it is detected that the mobile terminal has reached a distance capable of wireless communication with itself, a measurement data acquisition device that reads the measurement data stored in the internal storage unit of the mobile terminal and a measurement data acquisition device.
A data collection system characterized by having. It also has a data server that stores the measurement data.
Each of the sensor devices
The measurement data for grasping the operating state of the high-altitude work vehicle is measured, and the measurement data and the time information obtained by measuring the measurement data are written and stored in the measurement data storage unit inside the user, and the measurement data is stored at intervals. The measurement data and the time information are read from the measurement data storage unit and transmitted.
The measurement data acquisition device
The measurement data read from the plurality of mobile terminals is transmitted to the data server together with the sensor identification information indicating the sensor device added to the measurement data.
The data server
The supplied measurement data is classified for each sensor device according to the sensor identification information, and the measurement data is arranged in time series for each of the classified sensor devices using the time information, and the time of the state of the surrounding environment. The data collection system according to claim 3, wherein state measurement data indicating a change is generated, written to an internal state measurement data storage unit, and stored. The mobile terminal
When the measurement data is received, a data reception completion signal indicating that the measurement data has been received is transmitted to the sensor device.
The data collection system according to claim 4 , wherein when the sensor device receives the data reception completion signal from the mobile terminal, the transmitted measurement data and time information are deleted from the measurement data storage unit. .. A fourth or fifth aspect of the present invention, wherein the time interval at which the sensor device transmits the measurement data is set according to the rate of change in the state of the surrounding environment measured by the sensor device. The data collection system described in. The mobile terminal
A claim characterized in that it is carried by a person involved in the construction, who is a person in charge of managing the type of construction in charge at the construction site, which moves around the entire construction site for patrol multiple times a day. The data collection system according to any one of 4 to 6. The mobile terminal
Any one of claims 4 to 6, characterized in that it is carried by the person involved in the construction, who is a worker who performs the work in the type of construction in charge at the construction site multiple times a day. The data collection system described in. When the acceleration measured by the vibration sensor installed on the workbench that moves up and down with respect to the workbench body of the aerial work platform exceeds a predetermined first threshold value, the normal flow for canceling the sleep state and the normal flow.
When the acceleration measured by the vibration sensor is equal to or higher than the predetermined second threshold value and exceeds the predetermined number of times within the predetermined first predetermined time, the operation is determined to be the operating state. ON judgment flow and
When the state in which the acceleration measured by the vibration sensor is smaller than the predetermined first threshold value continues for the predetermined second predetermined time, the operation OFF determination flow for determining the non-operating state and the operation OFF determination flow.
A method for grasping the operating state of an aerial work platform, which is characterized by having.

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