JP2017171480A - Sensor device of vehicle for high lift work, data collection system, and method for recognizing operation state of vehicle for high lift work - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sensor device of a vehicle for high lift work, a data collection system, and a method for recognizing an operation state of the vehicle for high lift work, which can highly accurately recognize an operation state of the vehicle for high lift work at a construction site with a simple configuration.SOLUTION: A sensor device of a vehicle 1 for high lift work includes: a vibration sensor which is installed on a work bench to be raised/lowered with respect to a work vehicle body of the vehicle for high lift work; and a control section which executes a normal flow for releasing a sleep state when acceleration measured by the vibration sensor becomes a predetermined first threshold or more, an operation ON determination flow for determining an operation state when a state in which the acceleration measured by the vibration sensor becomes a predetermined second threshold or more becomes a predetermined prescribed number of times or more within a predetermined first prescribed time, and an operation OFF determination flow for determining a non-operation state when a state in which the acceleration measured by the vibration sensor is smaller than the predetermined first threshold is continued for a predetermined second prescribed time.SELECTED DRAWING: Figure 10

Description

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

  It is used to check the impact of construction work on the environment inside and outside the construction site, the location of construction machines used for construction work at the construction site, and the degree of progress against the construction progress plan. It is necessary to grasp the vibration, noise, construction machine layout).

  For this reason, the person in charge who is obliged to grasp the situation, such as a site manager, periodically patrols the construction site. And the method in which the person in charge observes the state of the construction site that changes every moment with the naked eye, confirms and records the status change of the observed construction site, and grasps the state change inside and outside the construction site is generally used. Yes.

  However, on the construction site, work for various constructions is constantly performed in any place, and the site conditions inside and outside the construction site change every moment. For this reason, when trying to accurately grasp changes in the site situation, as mentioned above, the person in charge constantly patrols the site for the purpose of checking the site situation at the construction site and recording the confirmation results. There must be. As described above, in a place where the person in charge is constantly circulated in the site for confirmation, a large number of persons in charge are required, leading to an increase in construction cost.

  In order to suppress this increase in construction cost, the physical quantity corresponding to the measurement target of the site situation is measured when estimating the site situation in the construction site for the purpose of labor-saving that eliminates the need for patrol of many persons in charge. Arrangement of various types of sensor devices obtained as

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

  Conventionally, in order to confirm the situation in and outside the construction site in real time, the intensity of the radio wave transmitted by the sensor device can be adjusted without changing the position of the antenna of the data collection device corresponding to the progress of the building. A data collection system that can easily collect measurement data transmitted by a sensor device without increasing the height is disclosed (for example, Patent Document 1).

JP 2014-146169 A

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

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

The present invention has been made to solve the above-described problems.
The sensor device for an aerial work vehicle according to the present invention includes:
A vibration sensor installed on a work table that moves up and down with respect to the work vehicle body of the aerial work vehicle;
A normal flow for canceling the sleep state when the acceleration measured by the vibration sensor is equal to or greater than a predetermined first threshold;
When the state in which the acceleration measured by the vibration sensor is equal to or greater than a predetermined second threshold is equal to or greater than a predetermined number of times within a predetermined first predetermined time, the operation is determined to be an operating state. ON judgment flow,
as well as,
An operation OFF determination flow for determining that the acceleration measured by the vibration sensor is smaller than a predetermined first threshold value for a predetermined second predetermined time and that the acceleration is measured as a non-operating state;
A control unit for executing
It is characterized by providing.

In addition, the sensor device for an aerial work vehicle according to the present invention includes:
The number of acceleration measurements per unit time in the operation ON determination flow is greater than the number of acceleration measurements per unit time in the normal flow and the operation OFF determination flow.

In addition, the data collection system according to the present invention includes:
Each of the sensor devices arranged at predetermined locations on a construction site, acquiring measurement data for grasping the operating state of the aerial work vehicle, and transmitting the acquired measurement data by wireless output at time intervals;
The measurement received by the internal storage unit when the measurement data is received from the sensor device that is carried by a person concerned in the construction moving within the construction site, enters the area where radio of the sensor device can be received, and is received from the sensor device. A portable terminal for writing and storing data;
When it is detected that the mobile terminal has reached a wireless communication distance with itself, a measurement data acquisition device that reads the measurement data stored in the internal storage unit of the mobile terminal;
It is characterized by having.

In addition, the data collection system according to the present invention includes:
A data server for storing the measurement data;
Each of the sensor devices
The measurement data for grasping the operating state of the aerial work vehicle is measured, and the time data measured with the measurement data is written and stored together with the measurement data in the internal measurement data storage unit. Read and send the measurement data and the time information from the measurement data storage unit,
The measurement data acquisition device is
The measurement data read from a plurality of the mobile terminals is transmitted to the data server together with sensor identification information indicating the sensor device added to the measurement data,
The data server is
The measurement data to be supplied is classified for each sensor device by the sensor identification information, the measurement data is arranged in time series using the time information for each classified sensor device, and the time of the state of the surrounding environment State measurement data indicating a change is generated, and is written and stored in an internal state measurement data storage unit.

In addition, the data collection system according to the present invention includes:
The mobile terminal is
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 transmitted measurement data and time information are deleted from the measurement data storage unit.

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

In addition, the data collection system according to the present invention includes:
The mobile terminal is
It is carried by the construction person who is in charge of managing the type of work in charge at the construction site, which travels the entire construction site several times a day for patrol.

In addition, the data collection system according to the present invention includes:
The mobile terminal is
It is carried by the construction-related person who is a worker who performs work for the type of work he / she is responsible for within the construction site several times a day.

Furthermore, the data collection method according to the present invention includes:
A normal flow for canceling the sleep state when the acceleration measured by the vibration sensor installed on the work table that moves up and down with respect to the work vehicle body of the aerial work vehicle is equal to or greater than a predetermined first threshold;
When the state in which the acceleration measured by the vibration sensor is equal to or greater than a predetermined second threshold is equal to or greater than a predetermined number of times within a predetermined first predetermined time, the operation is determined to be an operating state. ON judgment flow,
An operation OFF determination flow for determining that the acceleration measured by the vibration sensor is smaller than a predetermined first threshold value for a predetermined second predetermined time and that the acceleration is measured as a non-operating state;
It is characterized by having.

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

It is a conceptual diagram explaining collection of the measurement data from a 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 apparatus 10 and the sensor apparatus 11 in FIG. It is a figure which shows the structural example of the measurement data which the sensor apparatus transmits. FIG. 2 is a block diagram illustrating a configuration example of a mobile terminal 401, a mobile terminal 402, and a 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 structural example of the data server 700 in FIG. It is a figure which shows the structural example of the state measurement data accumulate | stored in the database. FIG. 10 is a sequence diagram of time-series processing of transmission / reception of measurement data in the sensor device, the portable terminal, the measurement data acquisition device, and the data server 700. It is a figure which shows the aerial work vehicle of this embodiment. It is a figure which shows the flowchart of the operation state grasping | ascertaining method by vibration detection of the aerial work vehicle of this embodiment. It is a figure which shows the subroutine of the operation determination program of the operation state grasping | ascertainment method of this embodiment. It is a schematic diagram of an example of the vibration waveform which the sensor apparatus 11 of this embodiment sensed.

  Embodiments of the present invention will be described below with reference to the drawings.

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

  In FIG. 1, the structure of the 3rd floor F3 of the building (construction site) 100 of n (n = 1, 2, ...) floor under construction is shown. On the third floor F3, as an example, a construction machine M1, a construction machine M2, and a construction machine M3 are arranged, and work corresponding to each function is performed. For example, the temperature of the construction machine M1 rises during operation, and the operating state can be estimated by monitoring this temperature. In addition, the construction machine M2 and the construction machine M3, for example, generate vibration during operation, and the operating state can be estimated by monitoring the intensity of the vibration.

  In addition, the data collection system according to 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 other floors on the third floor F3. The apparatus includes a device, a measurement data acquisition device, a data server 700, and a database 800. Here, portable terminals such as the portable terminal 401, the portable terminal 402, and the portable terminal 403 are carried by construction personnel who move within the construction site and perform work related to the construction site and the like. For example, mobile terminals such as the mobile terminal 402 and the mobile terminal 403 are site managers (sites) that visit the construction site to manage QCDS (Quality (quality) Cost (price) Delivery (safety)) Safety (safety)) Etc.) or carried by construction personnel such as general workers who work and transport at construction sites. For this reason, portable terminals such as the portable terminal 402 and the portable terminal 403 move together with the construction personnel when the construction personnel 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 performs quality control on whether the work performed by the worker is performed according to the design drawing for each work type (reinforcement work, formwork, sash work, ceiling work, etc.), Price management to confirm the amount of work such as quality and the number of workers, construction schedule management to confirm the progress of construction for the type of work in charge, whether the worker is working in a safe environment and condition (for example, Is the person in charge of each of the safety management) The site manager needs to frequently manage (supervise) the work of the type of work for which the worker is in charge and in charge so as not to cause a problem in the QCDS. For this reason, the site manager manages the location of the construction type work that the entire construction site is in charge of (including not only confirmation but also transmission of instructions to the operator to resolve any problems in the confirmation results) Therefore, patrol the construction site several times a day. Therefore, the site manager moves in a wider range than a worker who performs general construction, and goes around the construction site several times. Thereby, the probability that the portable terminal carried by the site manager will receive data transmitted from the sensor device (sensor device 10, sensor device 11, etc.) increases. Also, regardless of whether or not the person in charge carrying the mobile terminal is conscious, whether or not the person in charge of the person in charge is in charge of acquiring more measurement data of the state at the construction site other than the type of work that he is in charge of Can do.

  In addition, the arrangement of the sensor devices on each floor is changed in a timely manner depending on the state of the construction machine, the type of measurement data to be measured such as the room temperature, the image of the construction site, or the progress of the construction. There is no fixed operation on the floor. Further, the measurement data data acquisition device 500 is not arranged on all the n floors of the building 100, but is not arranged on the first floor or inside the building, and the construction personnel must pass. It is also possible to place only one at the entrance / exit where you want to go, or at the office where you always stop by.

  The sensor device 10 is attached to the construction machine M1, and for example, measures the temperature of the housing of the construction machine M1 at regular intervals, and transmits the measured temperature as measurement data at regular intervals. At this time, the sensor device 10 transmits the measurement data so that any communication device can receive it without designating the address of the transmission destination of the measurement data.

  The sensor device 11 is attached to the construction machine M2, measures the vibration intensity (for example, vibration acceleration intensity) of the casing of the construction machine M1 at regular time intervals, and uses the measured vibration intensity as measurement data. Send at regular intervals. In addition, each of the sensor device 10 and the sensor device 11 transmits measurement data indicating a measured environment state with a radio wave intensity within a radio field intensity range (area) of a specific low-power radio defined by the Radio Law. Each of the sensor device 10 and the sensor device 11 transmits sensor device identification information and time information together with 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. Moreover, time information is the time which measured measurement data.

  The shorter the fixed period for performing the transmission, the shorter the time interval for acquiring the measurement data, and the real-time property for monitoring the change in the state (physical quantity) due to the measurement data is improved. However, there are some cases where the state of the monitored object does not change so quickly. Therefore, this fixed period may be set in accordance with the speed of change of the state of the object to be monitored. For example, it is configured to set a predetermined time of about one hour period or about four periods per day according to the level at which the physical quantity of the environment is to be managed, and to transmit the measurement data measured at that time. In this case, the time interval for measuring the physical quantity is also changed in accordance with this fixed period.

  As described above, even if the sensor device 10 and the sensor device 11 each set the fixed period for transmitting the measurement data and the time interval for acquiring the measurement data from the measurement unit 111 to different values for each sensor device, the measurement data 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 the measurement time. In addition, each of the sensor device 10 and the sensor device 11 may acquire measurement data at random time intervals instead of the above-described fixed period, and may transmit measurement data at random time intervals. good. Here, even if the measurement data is measured and transmitted at random times, the time information is added to the measurement data as a time stamp, so that the time information can be rearranged in the order of the measurement time. .

  The mobile terminal 401 is a mobile phone, a smart phone, a tablet terminal, or the like, and is within a range in which radio waves transmitted by the sensor device 10 can be transmitted and received (distance range in which radio waves can be transmitted and received) in accordance with the movement of the carrying construction personnel. The sensor device 10 transmits measurement data during a period that exists in a certain range 301. The portable terminal 401 receives the measurement data transmitted by the sensor device 10 and writes and stores it in its own storage unit (storage unit 423 described later). Each of the portable terminal 402 and the portable terminal 403 performs the same operation as the portable terminal 401 described above. Similarly, 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 during the period in which the radio wave transmitted by the sensor device 11 can be received. Write and store in the internal storage.

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

  Next, measurement data acquisition processing 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 acquiring measurement data directly from the sensor device 12 when the measurement data acquisition device 500 is at a distance communicable with the sensor device 12. In FIG. 1, a receivable range 304 of radio waves transmitted by the sensor device 12 and a receivable range 303 of radio waves 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 devices 10 and 11 and the measurement data acquisition device 500 is a distance at which radio waves cannot be transmitted and received.

  In the case of FIG. 1, the measurement data acquisition device 500 receives radio waves transmitted from the sensor device 12 and acquires measurement data directly from the sensor device 12. Here, when performing transmission, the sensor device 12 transmits measurement data only to the measurement data acquisition device 500. That is, when acquiring measurement data, the measurement data acquisition device 500 detects a mobile terminal that exists in a communicable range and detects a sensor device that exists in a communicable range. When the measurement data acquisition device 500 detects a sensor device within a communicable range, the measurement data acquisition device 500 notifies the sensor device of its own address. The sensor device transmits measurement data to the address of the supplied measurement data acquisition device 500. Thereby, only the measurement data acquisition device 500 receives the measurement data transmitted by the sensor device. Therefore, the mobile terminal does not receive measurement data from the sensor device even if it exists in a range where communication with the sensor device is possible.

  FIG. 2 is a block diagram illustrating 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 temperature, and outputs the measured measurement data to the control unit 112. In this embodiment, for example, the measurement unit 111 is a temperature sensor because the physical quantity of the measurement target of the sensor device 10 is a temperature, and the measurement unit 111 is an acceleration sensor because the physical quantity of the measurement target of the sensor device 11 is an acceleration. is there.

  The control unit 112 reads measurement data from the measurement unit 111 at regular intervals, and reads the time when the measurement data is read from an internal timer. The control unit 112 causes the measurement data storage unit 113 to write and store the measurement data and the time information read from the measurement data as a set to 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 transmission of the previous measurement data, the measurement data and time stored in the measurement data storage unit 113 are transmitted. Along with the information, its own sensor identification signal is transmitted via the wireless transmission / reception unit 114. The wireless transmission / reception unit 114 transmits / receives data by transmitting a radio wave below the upper limit of the radio field intensity of the specific low power radio defined by the Radio Law. The battery 115 supplies power for driving the above-described units.

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

  The sensor device 10 measures the temperature as the state of the surrounding environment at the position where the sensor device 10 is disposed, for example. FIG. 3A is a diagram illustrating measurement data that the sensor device 10 periodically transmits in a predetermined period (for example, every 20 minutes). That is, the sensor device 10 adds sensor identification information to a set of measurement data measured within a certain period and a measurement time (measurement time t1, t2, t3, t4) when the measurement data is measured, and transmits the set. 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 indicates the time for measuring the state of the surrounding environment as measurement data. FIG. 3B also shows the same configuration as FIG. 3A, and the measurement data and measurement time (measurement time t5, t6, t7, t8) immediately after the fixed period in FIG. ).

  FIG. 4 is a block diagram illustrating 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. Each of the mobile terminals installs the operation of the control unit 422 as an application program, and an internal CPU (Central Processing Unit) or the like executes the application program to the sensor device 10 and the measurement data acquisition device 500. To perform processing such as transmission and reception of measurement data.

  Similarly to the wireless transceiver 114, the wireless transceiver 421 transmits and receives data by transmitting a radio wave below the upper limit of the radio field strength of the specific low power radio defined by the Radio Law. The control unit 422 writes and stores the measurement data, time information, and 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 to the storage unit 423. When the control unit 422 receives not only measurement data of the sensor device 10 but also 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 once.

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

  In FIG. 5, the measurement data acquisition apparatus 500 includes a wireless transmission / reception unit 501, a wired transmission / reception unit 502, a control unit 503, and a storage unit 504. Similarly to the wireless transmission / reception unit 114, the wireless transmission / reception unit 501 transmits / receives data by transmitting a radio wave below the upper limit of the radio field strength of the specific low-power radio defined by the Radio Law. The wired transmission / reception unit 502 is formed of a wired information communication network such as a wired LAN, and transmits / receives data to / from the data server 700 via the wired information communication network.

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

  FIG. 6 is a block diagram illustrating 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. Similar to the wired transmission / reception unit 502, the wired transmission / reception unit 701 transmits / receives data to / from the measurement data acquisition device 500 via a wired information communication network. The control unit 702 writes measurement data, time information, and sensor identification information in the measurement data collection area in the database 800 via the wired LAN and wired transmission / reception unit 701 from the measurement data acquisition device 500 and stores them.

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

  As a result, the rearrangement unit 704 rearranges the already accumulated measurement data and the newly supplied measurement data in the order of time, and the state stored in the database 800 so that the measurement data is in the order of the acquired time. Edit and store measurement data. In the database 800, sensor device identification information and construction machine identification information for identifying a construction machine are stored in a correspondence table in association with each other. That is, it is possible to detect which construction device each sensor device is installed by searching the correspondence table in the database 800 by the control unit 702.

FIG. 7 is a diagram illustrating 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 is arranged in the order of measured time for each sensor identification information for identifying a sensor device. As described above, the data server 700 temporarily accumulates the measurement data supplied from the measurement data acquisition apparatus 500 in the database 800 and the measurement data collected by sensor, and the once accumulated measurement data is measured. The state measurement data is edited and processed by rearranging and storing them in the order of the specified times.
According to the present embodiment, the measurement data of the same sensor device received by different mobile devices is arranged in time order by the classification and rearrangement processing of the data server 700 described above, and the state measurement data is stored in the database 800 as the state measurement data. Will be accumulated.

  Next, a sequence of transmission / reception of measurement data in the sensor device, the portable 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, the portable terminal, the measurement data acquisition device, and the data server 700. In the following description, the movement of 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 measurement data output from the measurement unit 111 at predetermined time intervals, that is, at regular intervals based on the time measured by the internal timer, and measures the measurement data. At the same time, the measurement data storage unit 113 is written and stored.
And the control part 112 reads the measurement data shown in FIG. 3 for every fixed period from the measurement data memory | storage part 113 based on the time which the timer of an internal self counts, and carries out radio | wireless transmission and reception with the sensor identification information added to self. Call from unit 114. Here, when the measurement data transmitted from any portable terminal is not acquired (when the data reception completion signal is not received from the portable terminal), the control unit 112 directly stores the measurement data in the measurement data storage unit 113 without deleting the measurement data. And keep it accumulated.

Step S2:
For example, when a construction person carrying the 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 has elapsed. . At this time, in the portable terminal 401, when receiving the measurement data transmitted from the sensor device 10, the control unit 422 determines whether or not termination data indicating the termination added to the end of the received measurement data has been received. I do. This end data is added as a delimiter of measurement data for each fixed period, and includes period identification information for identifying the fixed period. At this time, if the termination data is added to the measurement data received from the sensor device 10, the control unit 422 writes the measurement data in the storage unit 423 and stores it in correspondence with the sensor identification information of the sensor device 10.

Step S3:
When the termination data is added to the received measurement data, the control unit 422 transmits a data reception completion signal including the period identification information to the sensor device 10 on the assumption that the measurement data of a certain period has been normally received. . Thereby, in the sensor device 10, when the control unit 112 receives the data reception completion signal within a preset period, the control unit 112 performs a process of deleting the measurement data of a certain period indicated by the period identification information from the measurement data storage unit 113. Do. On the other hand, if the control unit 112 does not 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 remains stored in the measurement data storage unit 113. And at the next transmission timing, it 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 portable terminal 401, when the confirmation signal is supplied via the wireless transmission / reception unit 421, the control unit 422 detects that the measurement data acquisition device 500 exists within a transmittable distance.

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

  As a result, in the measurement data acquisition apparatus 500, when receiving the measurement data transmitted from the mobile phone 401, the control unit 503 has received termination data indicating the termination added to the end of the received measurement data. Judgment is made. At this time, if the termination 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 store.

Step S7:
When the control unit 503 detects the end data added to the measurement data, the control unit 503 transmits a data reception completion signal indicating that the measurement data of a certain period in which the end data is detected has been normally received via the wireless transmission / reception unit 501. To the portable terminal 401. In the portable terminal 401, when the control unit 422 receives the above-described data reception completion signal via the wireless transmission / reception unit 421, the control unit 422 stores measurement data having a certain period corresponding to the period identification signal added to the data reception completion signal. It is deleted from the part 423.

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

  Next, the classification unit 703 reads the measurement data for each fixed period stored in the measurement data collection amount area, and classifies the measurement data for each sensor device based on the sensor identification information. Then, the classification unit 703 writes and stores the classified measurement data for each fixed period in association with the sensor identification information in the sensor-specific measurement data collection area in the database 800. The rearrangement unit 704 sequentially reads measurement data from the sensor-specific measurement data collection area for each sensor identification information.

  Further, the rearrangement unit 704 reads from the database 800 state measurement data of sensor identification information similar to the measurement data read from the sensor-specific measurement data collection area. Then, the rearrangement unit 704 compares the measurement time of the measurement data arranged in time order in the state measurement data with the measurement time of the measurement data read from the sensor-specific measurement data collection area. The rearrangement unit 704 performs rearrangement so that the measurement time of the measurement data in the state measurement data and the measurement time of the measurement data read from the sensor-specific measurement data collection area are in order of the measurement time. The arrangement result is written and stored in the database 800 as edited state measurement data.

  The processes shown in steps S1 to S8 described above are executed at regular time intervals for each sensor identification information, 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 apparatus 500 is not changed, even if the situation such as the shielding in the building changes, the construction personnel carrying the mobile terminal By arranging the antenna at a position where the signal passes, measurement data measured by the sensor device can be easily collected by the data server 700.

  In addition, according to the present embodiment, measurement data transmitted by each sensor device at regular intervals is collected by a plurality of portable terminals and supplied to the measurement data acquisition device 500, and the data server 700 has 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 order of time.

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

  In addition, in each of the sensor devices, compared with a configuration in which it is determined whether or not there is a mobile terminal in the surroundings at all times in order to transmit at regular intervals and cause the mobile terminal to happen to be received in the communicable area. Thus, the life of the battery (battery 115 in FIG. 2) can be extended.

  Furthermore, in embodiment mentioned above, sensor device 10 and sensor device 11 explained as composition which transmits measured data measured only in a fixed period. However, a configuration for transmitting a control signal for transmitting measurement data from the sensor device to the mobile terminal may be added so that the measurement data can be arbitrarily acquired.

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

  Thereby, the control unit 112 of the portable terminal transmits a control signal instructing to transmit the measurement data held by the sensor device to the sensor device via the wireless transmission / reception unit 114. And a sensor apparatus will transmit the measurement data stored inside with respect to a portable terminal, if this control signal is received. At this time, as already described with reference to the sequence diagram of FIG. 8, when the sensor device receives a data reception completion signal from the portable terminal, the sensor device deletes the measurement data stored therein.

Next, in this embodiment, the ambient temperature has been described as an example of the ambient environment state (physical quantity) measured by the sensor device 10, but various types of sensor devices are assumed.
For example, as a 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 placed concrete, and sensing vibration and noise around the building There are vibration sensors and noise sensors. The application using each sensor will be described below.

<Application example>
A sensor device including a vibration sensor (measurement unit 111) for an aerial work vehicle (construction machine M2 or the like) that is arranged for work on a construction site in order to grasp how much it is operating. (Sensor device 11) is installed. This sensor device has a configuration shown in FIG. In this case, the sensor device 11 operates at a constant time interval, that is, senses vibration from the measurement unit 111 which is a vibration sensor, and the measurement data storage unit 113 as described above using the sensed measurement time as time information. Write to and store.

  And as already stated, when a construction person moves within the construction site, the mobile terminal enters within the range of the distance that can be communicated with the sensor device 11 installed in the aerial work vehicle, and the sensor device 11 measurement data is transferred to itself. In addition, when a person involved in the construction moves and a portable terminal enters the range of a distance communicable with the measurement data acquisition device 500, the measurement data is transferred from the portable terminal to the measurement data acquisition device 500. The measurement data acquisition device 500 transmits measurement data acquired from a plurality of portable terminals to the data server 700 via the LAN wiring 600. For example, the data server 700 is installed in a construction site office.

  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 correspondence table of the database 800 and displays on the display device which state measurement data of the construction machine.

  Thereby, the user grasps the operating states of all the aerial work vehicles arranged at the construction site from 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 determine whether there is a bias in the placement of the aerial work vehicle. For example, if there are multiple aerial work platforms that are arranged at the same point and there are aerial work vehicles that are generally in a low operating state or very low in operating state, a site manager who is a user may It is possible to reduce the number of work vehicles and 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 portable 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 the program on the medium, reading the program recorded on the recording medium into a computer system, and executing the program.

  Here, the “computer system” includes an OS and hardware such as peripheral devices. The “computer system” includes a homepage providing environment (or display environment) if a WWW system is used. The “computer-readable recording medium” refers to a storage device such as a flexible medium, a magneto-optical disk, a portable medium such as a ROM and a CD-ROM, and a hard disk incorporated in a computer system. Furthermore, the “computer-readable recording medium” dynamically holds a program for a short time like a communication line when transmitting a program via a network such as the Internet or a communication line such as a telephone line. In this case, a volatile memory in a computer system serving as a server or a client in that case, and a program that holds a program for a certain period of time are included. The program may be a program for realizing a part of the functions described above, and may be a program capable of realizing the functions described above in combination with a program already recorded in a computer system.

  Next, an operation state grasping method by vibration detection of an aerial work vehicle will be described with a specific example.

  FIG. 9 is a diagram showing an aerial work vehicle according to the present embodiment.

  Here, a 4 m type aerial work vehicle 1 as shown in FIG. 9 is applied. The aerial work vehicle 1 includes a work vehicle main body 2 and a work table 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) illustrated in FIG. 2 is installed on the work table 3. The grasping of the operating state is performed by the control unit 112 of the sensor device 11 shown in FIG.

  The operating state of the aerial work vehicle 1 is grasped by the sensor device 11 installed on the work table 3. In general, various heavy construction machines or machines that are sources of vibration are operating in the field. Therefore, the vibration sensed by the sensor device 11 installed in the aerial work vehicle 1 may not be able to determine whether or not the aerial work vehicle 1 is the vibration of the generation source. Therefore, in the present embodiment, the operation of the aerial work vehicle 1 is determined by grasping the vibration level when the aerial work vehicle 1 is operated.

  FIG. 10 is a diagram illustrating a flowchart of an operation state grasping method based on vibration detection of an aerial work vehicle according to the present embodiment. FIG. 11 is a diagram illustrating a subroutine of an operation determination program of the operation state grasping method according to the present embodiment.

  The operation state grasping method by vibration detection of an aerial work vehicle according to the present embodiment executes a normal flow in steps 11 to 13, an operation ON determination flow in steps 14 to 19, and steps 20 to 26. The operation OFF determination flow is executed. In the operation ON determination flow, the acceleration monitoring interval is made shorter than in the normal flow and the operation OFF determination flow. Therefore, it is possible to perform highly accurate monitoring in the operation ON determination flow. In the normal flow and the operation OFF determination flow, it is possible to put the microcomputer in the sleep state and extend the duration of the power supply.

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

  First, in steps 11 to 13, a 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, when the current time is not between 7:00 and 19:00, it is determined that the aerial work vehicle is not operating, and the grasping of the operating state is ended. In step 11, if the current time is between 7 o'clock and 19 o'clock, the process proceeds to step 12. The determination range of the current time 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 greater than a predetermined interrupt threshold value (ST13). In step 13, when the acceleration measured by the vibration sensor is not equal to or greater than the interrupt threshold, it is determined that the aerial work vehicle is not operating, and the grasping of the operating state is ended. 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.

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

  Subsequently, in step 15, the determination number is set to 0, the operation number is set to 0, and the time is set to the current time (ST15).

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

  First, in step 61, “determination count” is incremented to “determination count + 1” (ST61). The number of times of determination is the number of times that the operation determination program is executed.

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

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

  In step 64, the “number of operations” is counted up to “number of operations + 1” (ST64). Thereafter, the operation determination program subroutine is terminated.

  In step 17, it is determined whether or not the number of determinations is the same as the predetermined number of operation determinations (ST17). If it is determined in step 17 that the number of determinations is the same as the number of operation determinations, the process proceeds to step 18. If the number of determinations is different from the number of operation determinations in step 17, 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 a predetermined number of operations determined (ST18). If it is determined in step 18 that the number of operations is equal to or greater than the number of operations determined, the process proceeds to step 19. In step 17, when the number of operations is smaller than the number of confirmed operations, it is determined that the aerial work vehicle is not operating, and the grasping of the operating state is ended.

  In step 19, it records in a log (ST19). The log records the date, time, and operational ON status.

  Next, in step 20 to step 26, an operation OFF determination flow is executed. In step 20, it is determined whether or not the current time is between 7 o'clock and 19 o'clock (ST20). In step 20, when the current time is not between 7 o'clock and 19 o'clock, it is determined that the aerial work vehicle is not in operation, and the operation state grasping is terminated. If it is determined in step 20 that 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). If it is determined in step 21 that 30 minutes have elapsed from the time recorded in the log in step 19, the process proceeds to step 22. If it is determined in step 21 that the current time has not passed 30 minutes from the time recorded in the log in step 19, the process proceeds to step 23. Here, 30 minutes constitutes the second predetermined time. The time does not need to be 30 minutes and may be selected as appropriate.

  In step 22, it is recorded in a log (ST22). The log records the date, time, and operation OFF status.

  In step 23, 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 greater than a predetermined interrupt threshold value (ST24). If the acceleration measured by the vibration sensor is not equal to or greater than the interrupt threshold value in step 24, 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, 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). Thereafter, the process returns to step 20.

  FIG. 12 is a schematic diagram of an example of a vibration waveform sensed 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 or work elevators. In this embodiment, the interrupt threshold 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, for example, according to the type of vehicle or work place of the aerial work vehicle 1.

  In the period of (1) shown in FIG. 12, since the state where the measured acceleration is equal to or greater than the interrupt threshold value 500 mG has continued for a predetermined time or more, it is determined to be in operation. During the period of (2), since the state where the measured acceleration is smaller than the interrupt threshold value 500 mG has continued for a predetermined time or more, it is determined to be non-operational. In this embodiment, the predetermined time is 30 minutes. Note that 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 vehicle 1.

  During the period of (3), the state where the measured acceleration is smaller than the interrupt threshold value 500 mG continues for a short time. However, since the predetermined time does not continue, it is not determined as the non-operating state but is determined as the operating state.

  During the period (4), a state in which the measured acceleration is smaller than the interrupt threshold value 500 mG continues for a predetermined time, so that it is determined as a non-operating state. During the period (5), the state where the measured acceleration is larger than the interrupt threshold value 500 mG continues for a short time. However, since the predetermined time does not continue, the operating state is not determined and the non-operating state is determined. Here, the predetermined time in (5) is 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 and the operation determination acceleration threshold.

  As described above, the sensor device for an aerial work vehicle according to the present embodiment includes a vibration sensor installed on a work table that moves up and down with respect to a work vehicle body of the aerial work vehicle, and a first acceleration that is measured by the vibration sensor. When the threshold value is 1 or more, a normal flow for canceling the sleep state, and a state where the acceleration measured by the vibration sensor is equal to or more than a predetermined second threshold value are within a predetermined first predetermined time. When the predetermined number of times is reached, the operation ON determination flow for determining the operation state and the state in which the acceleration measured by the vibration sensor is smaller than the predetermined first threshold value are the second predetermined value. And a control unit that executes an operation OFF determination flow for determining that the vehicle is in a non-operating state when it has continued for a predetermined time. It is possible to grasp every time.

  In the sensor device for an aerial work vehicle of this embodiment, the number of acceleration measurements per unit time in the operation ON determination flow is greater than the number of acceleration measurements per unit time in the normal flow and operation OFF determination flow. Since there are many, it becomes possible to grasp | ascertain the operating state of the aerial work vehicle in a construction site more accurately by simple structure.

  In addition, the data collection system of this embodiment is arranged at a predetermined location on the construction site, acquires measurement data for grasping the operating state of an aerial work vehicle, and wirelessly outputs the acquired measurement data at time intervals. When the sensor device that is transmitted by and the construction person who moves in the construction site is carried, enters the area where radio of the sensor device can be received, and receives measurement data from the sensor device, the internal storage unit Measurement data that reads the measurement data stored in the internal storage unit when it is detected that the portable terminal that writes and stores the received measurement data and the portable terminal has reached a distance that allows wireless communication with itself And a sensor device in the vicinity of the moving location when the user carrying the mobile terminal moves while performing his / her work at the construction site. When the measurement data of the sensor device is received unconsciously from each, 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 that the person in charge collects the measurement data as before It is possible to easily collect measurement data from each of the sensor devices without adjusting the position of the antenna of the measurement data acquisition device and without increasing the intensity of the radio wave transmitted by the sensor device.

  In addition, the data collection system of the present embodiment further includes a data server that performs measurement data accumulation processing, and each of the sensor devices measures measurement data for grasping the operating state of the aerial work vehicle, The measurement data storage unit writes and stores the time information of the measurement data together with the measurement data, reads the measurement data and the time information from the measurement data storage unit at a time interval, and transmits the measurement data. The measurement data read from the plurality of portable 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 sends the supplied measurement data to the sensor identification information. The sensor data is classified for each sensor device, and the measurement data is arranged in time series using the time information for each classified sensor device. Since the state measurement data indicating the time change of the state is generated and written and stored in the internal state measurement data storage unit, the measurement data can be easily collected and the time series state measurement data can be generated. .

  In addition, when the mobile terminal receives the measurement data, the data collection system of the present embodiment transmits a data reception completion signal indicating that the measurement data has been received to the sensor device, and the sensor device receives the 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 useless storage capacity, and the price can be reduced.

  Further, in the data collection system of the present embodiment, the time interval at which the sensor device transmits measurement data is set corresponding to the speed of change in the state of the surrounding environment measured by the sensor device. Compared with the configuration for determining whether or not a mobile terminal is present, the battery life can be extended.

  In addition, the data collection system according to the present embodiment is a work-related that is a person in charge of managing the type of work in charge at the construction site, in which the mobile terminal moves for patrol throughout the construction site several 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 traveling time.

  In addition, the data collection system of the present embodiment is such that the portable terminal is carried by a construction person who is a worker who performs work in the type of work he / she takes in the construction site several times a day. It is possible to extend the life of the battery by matching the time for transmitting the time with the work time.

  Furthermore, the working condition grasping method of the aerial work vehicle according to the present embodiment is a 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 body of the aerial work vehicle is predetermined. When the threshold value is exceeded, the normal flow for canceling the sleep state and the state where the acceleration measured by the vibration sensor is equal to or greater than a predetermined second threshold value are within a predetermined first predetermined time. When the predetermined number of times is reached, the operation ON determination flow for determining the operation state and the state in which the acceleration measured by the vibration sensor is smaller than a predetermined first threshold value are the second predetermined value. Since it has an operation OFF determination flow that determines that it is in a non-operating state when it lasts for a predetermined time, it is possible to accurately grasp the operating state of an aerial work vehicle at a construction site with a simple configuration It can become.

  The embodiment of the present invention has been described in detail with reference to the drawings. However, the specific configuration is not limited to this embodiment, and includes design and the like within a scope not departing from the gist of the present invention.

DESCRIPTION OF SYMBOLS 1 ... Work vehicle at high place 2 ... Main body of work vehicle 3 ... Work table 10, 11 ... Sensor apparatus 100 ... Building 111 ... Measuring part (vibration sensor)
112, 422, 503, 702 ... control unit 113 ... measurement data storage unit 114, 421, 501 ... wireless transmission / reception unit 115 ... battery 301, 302, 303 ... range 401, 402 ... portable 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 machine

Claims (9)

A vibration sensor installed on a work table that moves up and down with respect to the work vehicle body of the aerial work vehicle;
A normal flow for canceling the sleep state when the acceleration measured by the vibration sensor is equal to or greater than a predetermined first threshold;
When the state in which the acceleration measured by the vibration sensor is equal to or greater than a predetermined second threshold is equal to or greater than a predetermined number of times within a predetermined first predetermined time, the operation is determined to be an operating state. ON judgment flow,
as well as,
An operation OFF determination flow for determining that the acceleration measured by the vibration sensor is smaller than a predetermined first threshold value for a predetermined second predetermined time and that the acceleration is measured as a non-operating state;
A control unit for executing
A sensor device for an aerial work vehicle, comprising: The number of acceleration measurements per unit time in the operation ON determination flow is greater than the number of acceleration measurements per unit time in the normal flow and the operation OFF determination flow. Sensor device for aerial work vehicles. The measurement data that is arranged at each predetermined place of a construction site, acquires measurement data for grasping an operating state of the aerial work vehicle, and transmits the acquired measurement data by wireless output at time intervals. The described sensor device;
The measurement received by the internal storage unit when the measurement data is received from the sensor device that is carried by a person concerned in the construction moving within the construction site, enters the area where radio of the sensor device can be received, and is received from the sensor device. A portable terminal for writing and storing data;
When it is detected that the mobile terminal has reached a wireless communication distance with itself, a measurement data acquisition device that reads the measurement data stored in the internal storage unit of the mobile terminal;
A data collection system comprising: A data server for storing the measurement data;
Each of the sensor devices
The measurement data for grasping the operating state of the aerial work vehicle is measured, and the time data measured with the measurement data is written and stored together with the measurement data in the internal measurement data storage unit. Read and send the measurement data and the time information from the measurement data storage unit,
The measurement data acquisition device is
The measurement data read from a plurality of the mobile terminals is transmitted to the data server together with sensor identification information indicating the sensor device added to the measurement data,
The data server is
The measurement data to be supplied is classified for each sensor device by the sensor identification information, the measurement data is arranged in time series using the time information for each classified sensor device, and the time of the state of the surrounding environment 4. The data collection system according to claim 3, wherein state measurement data indicating a change is generated and written and stored in an internal state measurement data storage unit. The mobile terminal is
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 said sensor apparatus deletes the transmitted said measurement data and time information from the said measurement data memory | storage part, when the said data reception completion signal is received from the said portable terminal. Data collection system. 6. The time interval at which the sensor device transmits the measurement data is set corresponding to the speed of change in the state of the surrounding environment measured by the sensor device. The data collection system as described in any one of. The mobile terminal is
It is carried by the construction personnel who is in charge of managing the type of construction in charge at the construction site, which travels the entire construction site several times a day for patrol. The data collection system according to any one of claims 3 to 6. The mobile terminal is
7. It is carried by said construction person who is a worker who performs work in the type of work in charge within the construction site a plurality of times a day. The data collection system described in A normal flow for canceling the sleep state when the acceleration measured by the vibration sensor installed on the work table that moves up and down with respect to the work vehicle body of the aerial work vehicle is equal to or greater than a predetermined first threshold;
When the state in which the acceleration measured by the vibration sensor is equal to or greater than a predetermined second threshold is equal to or greater than a predetermined number of times within a predetermined first predetermined time, the operation is determined to be an operating state. ON judgment flow,
An operation OFF determination flow for determining that the acceleration measured by the vibration sensor is smaller than a predetermined first threshold value for a predetermined second predetermined time and that the acceleration is measured as a non-operating state;
A method for grasping an operating state of an aerial work vehicle characterized by comprising:

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