JP2020083588A - Work management system and work management method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To estimate the behavior of a worker who performs maintenance work of an elevator with high accuracy. In a work management system 1, a smart device 10 registers a barometric pressure sensor 12 and a barometric pressure sensor value 171 (243) indicating a relative time-series change in the barometric pressure value measured by the barometric pressure sensor 12. The value registration unit 13 and the entrance / exit registration unit 14 for registering the entry / exit time 242 of the worker in the building are provided. Further, the center device 20 has a barometric pressure sensor value 243 and an entry / exit time 242 registered with the implementation of the maintenance work of the elevator, and characteristic conditions of the atmospheric pressure change when the maintenance work is normally carried out. Is a work completion determination unit 23 that determines whether or not the maintenance work has been normally performed by comparing the storage unit 24 that stores the preset barometric pressure change condition 245 with the barometric pressure sensor value 243 and the barometric pressure change condition 245. And. [Selection diagram] Fig. 1

Description

The present invention relates to a work management system and a work management method, and is suitably applied to a work management system and a work management method for estimating the behavior of a worker who performs maintenance work on an elevator.

Conventionally, in a building where an elevator is installed, when trying to track the action history of a worker who performs maintenance work on the elevator by GPS (Global Positioning System), even if the position of the worker can be specified, Due to the accuracy error, it was difficult to track the worker's detailed actions. In addition, it was difficult to obtain the approval from the customer who owns the building from the viewpoint of security regarding the utilization of the floor plan in the building. In addition, it is necessary to install a communication device in the building when using the indoor location technology using single-range wireless communication, but it is difficult to obtain approval because the customer does not have the advantage of installation. It was

On the other hand, in recent years, with the spread of smart devices (smartphones, smartwatches, wearable devices, etc.), it has been proposed to estimate a worker's action tracking using a built-in sensor of the smart device. For example, in Patent Document 1, in a portable smart device carried by an operator, the behavior of the operator is estimated by an internal or external sensor (acceleration sensor, pressure sensor, gyro sensor, illuminance sensor, temperature sensor, etc.) of the smart device. However, there is disclosed a work management system that manages work properly by leaving it as evidence.

International Publication No. 2017/149587

The work management system disclosed in Patent Document 1 uses an internal or external sensor of a smart device in order to track the behavior of a worker, but it is premised that measurement by various sensors is performed without a large measurement error. However, it is known that there is a measurement error in the sensor itself in the use of sensors of smart devices such as smartphones recently, and environmental changes during work (weather, temperature, etc.) are also a major cause of errors. .. In the prior art, sufficient solutions to these problems have not been considered, and it has not been easy to accurately estimate the behavior of the worker when an internal or external sensor of the smart device is used.

The present invention has been made in consideration of the above points, and is intended to propose a work management system and a work management method capable of highly accurately estimating the behavior of a worker who performs maintenance work on an elevator. ..

In order to solve such a problem, the present invention provides the following work management system that estimates the action history of a worker who performs maintenance work on an elevator. The work management system includes a smart device carried by the worker, and a center device capable of communicating with the smart device. The smart device measures an atmospheric pressure by an atmospheric pressure sensor and the atmospheric pressure sensor. A barometric pressure sensor value registering unit for registering a barometric pressure sensor value indicating a relative time-series change in the generated barometric pressure value, and entering/leaving the worker at a building where the elevator is installed. The center device includes an exit registration unit, and the center device includes the atmospheric pressure sensor value registered by the atmospheric pressure sensor value registration unit along with the maintenance work, and the entrance/exit of the center device along with the maintenance work. A storage unit that stores the entry time and the exit time registered by the exit registration unit and the atmospheric pressure change condition in which a characteristic condition of the atmospheric pressure change when the maintenance work is normally performed is preset. And a work completion determination unit that determines whether or not the maintenance work is normally performed by comparing the atmospheric pressure sensor value stored in the storage unit with the atmospheric pressure change condition. To be done.

In order to solve such a problem, the present invention provides the following work management method by a work management system that estimates the behavior history of a worker who performs maintenance work on an elevator. Here, the work management system includes a smart device carried by the worker and a center device capable of communicating with the smart device. Then, the work management method includes a measuring step in which the smart device measures atmospheric pressure with an atmospheric pressure sensor, and the smart device indicates a relative time-series change in the atmospheric pressure value measured in the measuring step. An atmospheric pressure sensor value registration step of registering a value; an entrance/exit registration step of registering an entrance time and an exit time of the worker in the building where the smart device is installed by the smart device; , The atmospheric pressure sensor value registered in the atmospheric pressure sensor value registration step accompanying the maintenance work, and the admission time and exit time registered in the entrance/exit registration step accompanying the maintenance work. A storage step of storing a time and an atmospheric pressure change condition in which a characteristic condition of the atmospheric pressure change when the maintenance work is performed normally in a predetermined storage unit; A work completion determination step of determining whether or not the maintenance work has been normally performed by comparing the atmospheric pressure sensor value stored in the unit with the atmospheric pressure change condition.

According to the present invention, the behavior of a worker who performs maintenance work on an elevator can be estimated with high accuracy.

It is a block diagram showing an example of composition of a work management system concerning one embodiment of the present invention. It is a longitudinal section showing an example of structure of an elevator. It is a flow chart which shows an example of the work procedure of maintenance work. 4 is a graph showing an example of a time series change of a relative atmospheric pressure value when the maintenance work shown in FIG. 3 is performed. It is a flow chart which shows the example of a processing procedure of work completion judgment processing.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

(1) Configuration of Work Management System FIG. 1 is a block diagram showing a configuration example of a work management system according to an embodiment of the present invention. As shown in FIG. 1, the work management system 1 according to the present embodiment includes a smart device 10 and a center device 20. The smart device 10 and the center device 20 are communicably connected via a wide area network 30.

First, the functional configuration of the smart device 10 will be described.

The smart device 10 is an information terminal that is always carried (carried) by a worker who is engaged in maintenance work of the elevator 40 (hereinafter, also simply referred to as work), and is, for example, a smartphone, a smart watch, or a wearable device. Devices, etc. As shown in FIG. 1, the smart device 10 includes a transmission/reception unit 11, an atmospheric pressure sensor 12, an atmospheric pressure sensor value registration unit 13, an entrance/exit registration unit 14, a work record registration unit 15, a display unit 16, and a storage unit 17. It is configured with. The configuration of the elevator 40 will be described later with reference to FIG.

The transmission/reception unit 11 is a communication interface, and transmits/receives data to/from the center device 20 via the wide area network 30. The atmospheric pressure sensor 12 is a sensor that detects atmospheric pressure.

The atmospheric pressure sensor value registration unit 13 registers the atmospheric pressure sensor value measured by the atmospheric pressure sensor 12. Specifically, the atmospheric pressure sensor value registration unit 13 continuously records the atmospheric pressure sensor value measured by the atmospheric pressure sensor 12 in the storage unit 17 (atmospheric pressure sensor value 171), and after the work of the worker is completed, the storage unit 17 is completed. The atmospheric pressure sensor value 171 recorded in 1 is transmitted to the center device 20 and stored in the storage unit 24 of the center device 20 (atmospheric pressure sensor value 243). In this example, it is assumed that the barometric pressure sensor value 171 is transmitted to the center device 20 at the time of exit registration.

The entry/exit registration unit 14 registers the entry time and the exit time of the worker in the building of the work destination. The above-mentioned processing (entry/leaving registration processing) by the entry/leaving registration unit 14 is performed when the worker enters the building of the work destination or leaves the building, and is displayed by the worker. The 16 screen operations may be used as the execution timing, or the fact that the worker can confirm the entry/exit of the work destination building using the GPS or the like may be used as the execution timing. When the entrance/exit registration processing is executed, the entrance/exit registration unit 14 acquires the entrance time or the exit time based on the time of a clock (not shown) mounted on the smart device 10, and The entry time or the exit time is recorded in the storage unit 24 of the device 20 (entry/exit time 242). In addition, it is preferable that the time of the clock is periodically corrected by, for example, communication with the communication device of the mobile phone company, and by performing such correction, the error range is reduced to a predetermined amount (for example, less than 1 second). Can be suppressed.

The work record registration unit 15 registers the content (work record) of the maintenance work performed by the worker based on the input operation to the display unit 16 by the worker. When the above-described processing (work performance registration processing) by the work performance registration unit 15 is executed, the content of the work performance input to the display unit 16 is transmitted to the center device 20 and recorded in the storage unit 24 of the center device 20. (Work record 244).

The display unit 16 is, for example, a liquid crystal display and has a display function as well as a keyboard function (input function) capable of inputting numerical and character information like a smartphone. By operating the display unit 16, the worker can confirm the work schedule 241 stored in the storage unit 24 of the center device 20, and by confirming the work schedule 241, information on the work destination and work contents. Can be recognized.

The storage unit 17 is a memory that records data. Specifically, for example, the atmospheric pressure sensor value 171 registered by the atmospheric pressure sensor value registration unit 13 is stored.

In addition, supplementing the hardware that realizes each functional configuration of the smart device 10 illustrated in FIG. 1, the atmospheric pressure sensor value registration unit 13, the entry/exit registration unit 14, and the work record registration unit 15 are, for example, the smart device 10 This can be realized by a CPU (Central Processing Unit) installed in the CPU reading a predetermined program stored in a ROM (Read Only Memory) into a RAM (Random Access Memory) and executing the program. The CPU may also control the display function and the input function of the display unit 16.

Next, the functional configuration of the center device 20 will be described.

The center device 20 is a management device that integrally manages elevators at a plurality of locations, and is realized by, for example, a server or a database. The center device 20 is generally installed in a remote place from the place where the worker performs the maintenance work, for example, in the building of the company to which the worker belongs. As shown in FIG. 1, the center device 20 includes a transmission/reception unit 21, a work schedule planning unit 22, a work completion determination unit 23, and a storage unit 24.

The transmission/reception unit 21 is a communication interface, and transmits/receives data to/from the smart device 10 via the wide area network 30.

The work schedule planning unit 22 receives and registers a work schedule plan such as which work destination to visit when a worker goes around a plurality of work destinations. Specifically, for example, a worker adjusts the work date and time with a work requester (a building owner or a manager), and performs a predetermined input operation on an input unit (not shown) of the center device 20. The work schedule planning unit 22 registers the work schedule with the input work destination and work date and time. The work schedule to be registered is stored in the storage unit 24 (work schedule 241) and can be referred to from the smart device 10.

The work completion determination unit 23 determines whether the maintenance work of the elevator 40 is normally performed based on the time-series relative atmospheric pressure value (atmospheric pressure sensor value 243) received from the smart device 10 and stored in the storage unit 24. It has the function to judge. Although details will be described later with reference to FIG. 5, the work completion determination unit 23 executes the “work completion determination process” after the maintenance work of the elevator 40 is completed, so that the atmospheric pressure sensor value stored in the storage unit 24. By comparing 243 with the atmospheric pressure change condition 245, it can be determined whether or not the maintenance work has been correctly performed without omission.

The storage unit 24 is a memory that records data. Specifically, as shown in FIG. 1, the storage unit 24 stores a work schedule 241, entry/exit times 242, barometric pressure sensor values 243, work records 244, barometric pressure change conditions 245, and floor information 246. To be done.

Of these, the work schedule 241 is data registered by the work schedule planning unit 22, and the entry/exit time 242, the atmospheric pressure sensor value 243, and the work record 244 are data registered and transmitted from the smart device 10. is there.

The atmospheric pressure change condition 245 and the floor information 246 are data stored in the storage unit 24 in advance. The atmospheric pressure change condition 245 is data indicating a characteristic condition of atmospheric pressure change in normal maintenance work, and is set in advance. The atmospheric pressure change condition 245 is used as a condition for determining whether or not the maintenance work is normally performed by the worker in the work completion determination process described later with reference to FIG. The floor information 246 is data indicating the number of floors of the work destination building, and is also set in advance. In this example, the floor information 246 is used by substituting it into an equation for calculating a relative atmospheric pressure reference value, which will be described later with reference to FIG.

In addition, supplementing the hardware that realizes each functional configuration of the center device 20 illustrated in FIG. 1, the work schedule planning unit 22 and the work completion determining unit 23 store, for example, a CPU mounted in the center device 20 in a ROM. This can be realized by reading out the specified program into the RAM and executing it.

The wide area network 30 is a wide area communication line network represented by the Internet, LTE (Long Term Evolution), LAN (Local Area Network), and the like, and exchanges various data between the smart device 10 and the center apparatus 20. It is a communication means.

The above is the configuration of the work management system 1 according to the present embodiment.

(2) Structure of Elevator FIG. 2 is a vertical sectional view showing an example of the structure of the elevator. With reference to FIG. 2, the structure of the elevator 40 that is the target of the maintenance work will be briefly described.

As shown in FIG. 2, the elevator 40 is installed in a building to be worked, and includes a hoistway 41, a car 42, a rope 43, a counterweight 44, a drive device 45, a brake 46, and an oil buffer 47.

The hoistway 41 is a shaft for vertically moving the car 42 and the counterweight 44. The car 42 is a box for carrying passengers and the like, and is hung by a rope 43. The rope 43 is a steel cable and connects the car 42 and the counterweight 44.

The balance weight 44 is a weight for balancing with the car 42. Generally, the counterweight 44 is adjusted in weight so that it is balanced when 50% of the maximum load of the car 42 is loaded by a person. That is, when there are no passengers in the car 42, the counterweight 44 is heavier than the car 42.

The drive device 45 is a motor that provides a driving force for moving the rope 43 in the vertical direction. The drive device 45 rotates the motor according to a command from a control panel (not shown), and drives the pulley (not shown) to move the rope 43. The brake 46 is a device that constitutes the drive device 45, and is an important device that holds the pulley to prevent the drive device 45 from moving when the drive device 45 is stopped.

If the brake 46 does not operate normally, the pulley becomes free, and the car 42 and the counterweight 44 may unexpectedly move in the direction in which the weight is heavy, which may lead to an accident. Therefore, it is necessary for the worker to regularly overhaul the brake 46 during the maintenance work so that the brake 46 does not become abnormal. As shown in FIG. 2, since the drive device 45 including the brake 46 is installed in the machine room 50 above the hoistway 41 (corresponding to the F+1 floor in this example), the brake 46 is overhauled. When doing so, the worker works in the machine room 50.

In the unlikely event that the brakes 46 do not operate normally in the oil buffer 47 and the car 42 starts to move toward the counterweight 44 side and the car 42 rises to the top of the hoistway 41, the counterweight 44 moves up and down. It is a shock absorbing device for reducing the impact caused by the collision with the floor surface side of the road 41. Although such a shock absorber used in a general elevator includes an oil type shock absorber and a spring type shock absorber, in this example, an oil type shock absorber widely used in a high speed elevator will be described.

When the brake 46 does not operate normally as described above, when the counterweight 44 moves to the floor surface side of the hoistway 41 and comes into contact with the oil buffer 47, the buffer function operates and the oil buffer 47 moves. The oil (oil) overflows. As described above, since the oil type shock absorber 47 has a mechanism for buffering by overflowing the oil (oil) during the operation of the shock absorbing function, the amount of the oil (oil amount) is appropriate during maintenance work. It is necessary to check whether there is any, and when the buffer function operates, add oil and clean the surroundings.

(3) Elevator maintenance work and changes in relative atmospheric pressure value In the work management system 1 according to the present embodiment, while the power of the smart device 10 carried by the worker is on (a predetermined application is performed by the smart device 10). The pressure sensor 12 is measuring the atmospheric pressure. When the worker performs the maintenance work on the elevator 40, the barometric pressure sensor value registration unit 13 sets the atmospheric pressure from the time the worker enters the target building to the time the maintenance work is performed and the worker leaves the building. The atmospheric pressure sensor value measured by the sensor 12 is continuously supplemented, and the atmospheric pressure sensor value at the reference point (for example, the first floor when entering the building) is set as the reference value "0", and the relative atmospheric pressure value (hereinafter referred to as the relative atmospheric pressure value). Change) is recorded in the storage unit 17.

FIG. 3 is a flowchart showing an example of a work procedure of maintenance work. FIG. 3 shows a work procedure of the maintenance work for overhauling the brake 46 as an example of the maintenance work of the elevator 40 targeted in the present embodiment.

According to FIG. 3, first, the worker confirms the work schedule (step S1). Specifically, for example, the worker confirms the work schedule of the day by operating the display unit 16 of the smart device 10 to refer to the work schedule 241 stored in the storage unit 24 of the center device 20, Understand the work content, work start/end times, work address of the building, etc.

Next, as soon as the work start time comes, the worker enters the work destination building where the elevator 40 is laid and starts the maintenance work (step S2). When entering the building, the operator operates the display unit 16 of the smart device 10 to register the building. As a result, the entry/exit registration unit 14 registers the current entry time at the entry/exit time 242 stored in the storage unit 24 of the center device 20. Since entry registration is supposed to be done at the entrance of the building, in the case of a general building, it is done on the first floor.

Next, before starting the overhaul of the brake 46, the worker reciprocates the operation of each floor of the car 42 of the elevator 40 in step S3 in order to confirm that the brake 46 is operating normally. Check the floor step and stop shock (impact when stopping) on each floor (check the landing level). At this time, the operator stops the car 42 while driving the car 42 and performs reciprocating operation.

Next, the worker moves to the machine room 50 and confirms that the car 42 is excessively elevated (step S4). When the brake 46 is overhauled, the brake 46 is disassembled and maintained. At this time, since the brake 46 cannot hold the pulley, it is necessary to raise the car 42 in advance. A special jig (not shown) for opening the brake 46 is used for the excessive rise. The operator can slowly move the car 42 to the counterweight 44 side by gradually opening the brake 46 using this dedicated jig.

When the car 42 rises to the top of the hoistway 41, the counterweight 44 comes into contact with the oil type shock absorber 47, and the shock absorbing function of the oil type shock absorber 47 operates. As a result, the oil overflows from the oil type shock absorber 47, so that it is necessary to inspect the oil type shock absorber 47 after returning from the excessive rise, which will be described later in step S7.

After excessively raising the car 42 in step S4, the worker starts to overhaul the brake 46 (step S5). While the work of steps S4 to S5 is performed, the worker stays in the machine room 50, and depending on the skill of the worker, overhaul of the brake 46 requires about 30 minutes.

After the overhaul of the brake 46 is completed, the operator reciprocally operates the car 42 of the elevator 40 on each floor to confirm whether the brake 46 after the overhaul is operating normally. Check the floor level difference and stop shock (impact at the time of stopping), and confirm the landing level (step S6). In step S6, similarly to step S3 described above, the worker operates the car 42 and stops at each floor to perform a reciprocating operation.

Next, the worker moves to the floor surface of the hoistway 41 and inspects the oil buffer 47 (step S7). Specifically, it is checked whether the oil amount of the oil type shock absorber 47 is proper (oil type shock absorber oil amount check), or the oil overflowing around the oil type shock absorber 47 is cleaned. When moving to the floor of the hoistway 41, the elevator 40 is generally stopped slightly above the first floor to enter the pit through the gap.

When the work in step S7 is completed, the worker leaves the building to be inspected (step S8), and the series of maintenance work is completed. At the time of leaving the building, the worker operates the display unit 16 of the smart device 10 to perform the leaving registration. As a result, the entry/exit registration unit 14 registers the current exit time at the entry/exit time 242 stored in the storage unit 24 of the center device 20. At this time, the atmospheric pressure sensor value registration unit 13 transmits the time-series data of the atmospheric pressure sensor value 171 (relative atmospheric pressure value) recorded in the storage unit 17 during a series of maintenance work to the center device 20, and the atmospheric pressure of the storage unit 24. It is stored as the sensor value 243. In the work management system 1, the atmospheric pressure sensor value 171 recorded in the storage unit 17 on the smart device 10 side may be transmitted to the center device 20 during a series of maintenance work.

The worker inputs the work record by operating the display unit 16 of the smart device 10 during or after the maintenance work. When the input is performed, the work record registration unit 15 transmits the input work record to the center device 20, and stores the work record 244 in the storage unit 24 with the status of temporary completion. In the work record 244, a plurality of statuses that can be linked are prepared, and in this example, it is assumed that the statuses of “not implemented”, “temporary completed”, and “implemented” are prepared.

The above is an example of the maintenance work of the elevator 40 in the present embodiment. As described above, in the work management system 1 according to the present embodiment, the sensor atmospheric pressure value is measured by the smart device 10 carried by the worker during the above-mentioned maintenance work, and the reference point (for example, 1 when entering the building). The time series change of the relative atmospheric pressure value with the atmospheric pressure sensor value at the floor) as the reference value “0” is recorded in the storage unit 17. Then, the time series data of the relative atmospheric pressure values recorded in the storage unit 17 is transmitted to the center device 20 and stored in the storage unit 24 as the atmospheric pressure sensor value 243.

Here, since the atmospheric pressure value is fluctuation information that fluctuates in the vertical direction, a time-series change in the relative atmospheric pressure value in a series of maintenance work correlates with the vertical movement of the worker in the maintenance work. Therefore, in the center device 20, the work completion determination unit 23 uses the atmospheric pressure change condition 245 stored in the storage unit 24 and the floor information 246 of the work destination to reference the relative atmospheric pressure value (relative value) of each floor. The atmospheric pressure reference value) can be calculated, and by comparing the calculated relative atmospheric pressure reference value with the time-series relative atmospheric pressure value (atmospheric pressure sensor value 243) stored in the storage unit 24, the worker can perform maintenance work. It is possible to accurately track and grasp the behavior history of the worker at which time and on which floor.

FIG. 4 is a graph showing an example of a time series change of the relative atmospheric pressure value when the maintenance work shown in FIG. 3 is performed. On the left side of FIG. 4, an F-story building where elevators 40 can be stopped on each floor is shown, and a machine room 50 is provided at the top, which corresponds to the “F+1” floor of the building, and the “−1” floor of the building. The bottom of the hoistway (pit) is shown at the bottom, which corresponds to.

In the graph of the time series change of the relative atmospheric pressure value shown in FIG. 4, the vertical axis represents the relative atmospheric pressure value and the horizontal axis represents the passage of time. As for the relative atmospheric pressure value, the atmospheric pressure on the reference floor (first floor in this example) is set as the reference atmospheric pressure value “0”. In this example, the height between floors of the building is the same, and the pressure change value for one floor is P. When doing in this way, the relative atmospheric pressure reference value of each floor is "0" for the first floor, "-P" for the second floor, "-2P" for the third floor,..., "-(F-1 )×P”, similarly, the relative atmospheric pressure reference value of the machine room (F+1 floor) is “−F×P”, and the relative atmospheric pressure reference value of the hoistway floor surface (−1st floor) is “P”. In addition, the elapsed time on the horizontal axis includes each step (steps S3 to S7 in FIG. 3) of the series of maintenance work illustrated in FIG. 3, and the relative atmospheric pressure value corresponding to each step. (The line graph in which the relative atmospheric pressure values based on the measured values by the atmospheric pressure sensor 12 are plotted in time series) is denoted by the reference signs H1 to H5.

Below, the respective atmospheric pressure changes H1 to H5 of FIG. 4 will be described in detail while contrasting with the progress of each step of the maintenance work shown in FIG.

First, when the entrance registration is performed (step S2 in FIG. 3), the atmospheric pressure sensor value registration unit 13 sets the atmospheric pressure sensor value measured by the atmospheric pressure sensor 12 as the reference value “0”, and thereafter, the atmospheric pressure sensor value registration. The unit 13 converts the atmospheric pressure sensor value measured by the atmospheric pressure sensor 12 into a relative value (relative atmospheric pressure value) with respect to the reference value and handles it. In general, the atmospheric pressure sensor 12 may cause a considerable measurement error, but the atmospheric pressure sensor value registration unit 13 sets a reference value at the time of admission registration and treats it as a relative expected value thereafter, so that the measurement error up to that point is Can be reset, and measurement error during a series of maintenance work can be suppressed.

When the maintenance work is started, the landing level is confirmed in each floor operation (step S3 in FIG. 3). At this time, since the worker drives the car 42 to stop at each floor and perform a reciprocating operation, the atmospheric pressure change H1 is represented by a graph of a shape in which each floor moves stepwise.

Next, the passenger's car excessive rise is confirmed (step S4 in FIG. 3). At this time, the worker first moves from the first floor to the machine room 50 and performs an over-elevating operation of the car 42 in the machine room 50. Therefore, the atmospheric pressure change H2 decreases to “−F×P” indicating the height of the machine room 50. At the end of the operation of raising the car 42, the worker is again on the first floor.

Next, overhaul confirmation of the brake 46 is performed (step S5 of FIG. 3). As described above, since the overhaul of the brake 46 is performed in the machine room 50, the relative atmospheric pressure value at the atmospheric pressure change H3 transits at "-F×P".

After the overhaul of the brake 46 is completed, the landing level is confirmed in each floor operation in order to confirm whether the brake 46 after the overhaul is operating normally (step S6 in FIG. 3). At this time, the worker gets on the elevator 40 on the top floor (F floor) and reciprocates up to the first floor while confirming the floor landing level on each floor. Therefore, the pressure change H4 is a graph in which each floor moves stepwise. It is represented by. In addition, comparing the shapes of the atmospheric pressure change H1 and the atmospheric pressure change H4, the former is the atmospheric pressure change when going back and forth from the first floor to the uppermost floor (F floor) in each floor operation, whereas the latter is the uppermost floor (F floor). ) To the 1st floor due to the change in atmospheric pressure when going back and forth on each floor, the staircase convex direction is opposite, but in both cases, the 1st floor to the top floor each roundabout It is represented by a graph.

Next, the oil amount of the oil type shock absorber is confirmed (step S7 in FIG. 3). At this time, the worker works on the floor surface of the hoistway 41. The floor of the hoistway 41 is below the first floor (corresponding to "-1st floor" in this example), and as described above in step S7 of FIG. 3, the worker enters the pit from the first floor to work. To do. Therefore, the atmospheric pressure change H5 in the oil amount confirmation of the oil-type shock absorber is represented between the first floor (relative atmospheric pressure "0") and the -1st floor (relative atmospheric pressure "P").

When all the processes are completed, the worker leaves the first floor, and the final relative atmospheric pressure value becomes "0".

(4) Work Completion Determination Process As described in detail with reference to FIGS. 3 and 4, the work completion determination unit 23 determines the relative atmospheric pressure reference value of each floor of the building and the time-series relative atmospheric pressure measured in the maintenance work. By comparing the value (atmospheric pressure sensor value 243) with the value, it is possible to identify the vertical movement history (action history) of the worker at what time and on which floor in the maintenance work. Furthermore, the work completion determination unit 23 determines whether or not the maintenance work has been correctly performed by the worker by performing the following work completion determination processing.

FIG. 5 is a flowchart showing an example of the procedure of the work completion determination process. The work management determination process illustrated in FIG. 5 is performed at an arbitrary timing when the entry/exit time 242, the atmospheric pressure sensor value 243, and the work record 244 related to the maintenance work are stored in the storage unit 24, for example, the maintenance work targeted for the worker. After the completion of the process and the completion of the exit registration and the work record registration, the work completion determination unit 23 mainly executes the process. The work completion determination unit 23 determines each step (steps S12 to S15) in FIG. 5 based on the atmospheric pressure change condition 245.

According to FIG. 5, first, the work completion determination unit 23 extracts the atmospheric pressure sensor value 243 from the entry time to the exit time from the storage unit 24 (step S11).

Next, the work completion determination unit 23 refers to the atmospheric pressure sensor value 243 extracted in step S11 and determines whether or not the staying time of the machine room 50 is 30 minutes or more (step S12). More specifically, the work completion determination unit 23 sets the extracted atmospheric pressure sensor value 243 to “−F×P” which is the relative atmospheric pressure reference value of the machine room 50 between the entry time and the exit time. It is determined whether or not there is a portion where the corresponding value does not vary (a variation range of a predetermined degree that does not approach the relative atmospheric pressure reference value of a different floor may be allowed) and 30 minutes or more have passed. If there is a place where 30 minutes or more has passed in step S12 (YES in step S12), it can be estimated that the overhaul of the brake 46 in the machine room 50 (step S5 in FIG. 3, pressure change H3 in FIG. 4) has been normally performed. , And proceeds to step S13. On the other hand, if there is no portion where 30 minutes or more has elapsed in step S12 (NO in step S12), it can be estimated that the overhaul of the brake 46 in the machine room 50 has not been properly performed, and thus the process proceeds to step S17. Step S17 is a process performed when it is determined that the maintenance work is not performed correctly, and the details will be described later.

In step S13, the work completion determination unit 23 refers to the atmospheric pressure sensor value 243 extracted in step S11, and performs the reciprocal movement of each floor starting from the first floor before the stay of the machine room 50 confirmed in step S12. It is determined whether it has been done. More specifically, the work completion determination unit 23 uses the extracted air pressure sensor value 243 from the first floor to the F from the first floor to the start of the stay time of 30 minutes or more of the machine room 50 determined in step S12. The value corresponding to the relative atmospheric pressure reference value (“0” to “−(F-1)×P”) of each floor up to the floor is stayed in order for a predetermined time (the shortest time allocated to the working time on each floor) or more. , Determine whether or not it is making a round trip. At this time, the uppermost floor of the floor information 246 of the work destination stored in the storage unit 24 is substituted into “F”. Further, “P” can be calculated by dividing the minimum value of the relative atmospheric pressure values of the atmospheric pressure sensor values 243 from the entrance time to the exit time by the top floor +1 of the floor information 246. When the reciprocating movement of each floor stay can be confirmed in step S13 (YES in step S13), the landing level confirmation (step S3 in FIG. 3, pressure change H1 in FIG. 4) before overhaul of the brake 46 is normally performed. It can be estimated that this is the case, and the process proceeds to step S14. On the other hand, if it is not possible to confirm the reciprocating movement of each floor stay in step S13 (NO in step S13), it can be estimated that the landing level confirmation before the overhaul of the brake 46 is not normally performed, so the process proceeds to step S17.

In step S14, the work completion determination unit 23 refers to the atmospheric pressure sensor value 243 extracted in step S11, and after the stay of the machine room 50 confirmed in step S12, reciprocating each floor starting from the top floor (F floor). It is determined whether or not the movement has been performed. More specifically, the work completion determination unit 23 determines, in the extracted atmospheric pressure sensor value 243, from the F floor between the time of stay of 30 minutes or more of the machine room 50 determined in step S12 and the exit time. The value corresponding to the relative atmospheric pressure reference value (“-(F-1)×P” to “0”) of each floor up to the first floor is stayed in order for a predetermined time (the shortest time allocated to the working time on each floor) or more. Then, it is determined whether or not the vehicle is reciprocating. When the reciprocating movement of each floor stay can be confirmed in step S14 (YES in step S14), the landing level confirmation after the overhaul of the brake 46 (step S6 in FIG. 3, atmospheric pressure change H4 in FIG. 4) is normally performed. It can be estimated that this is the case, and the process proceeds to step S15. On the other hand, if it is not possible to confirm the reciprocating movement of staying at each floor in step S14 (NO in step S14), it can be estimated that the landing level confirmation before the overhaul of the brake 46 is not normally performed, so the process proceeds to step S17.

In step S15, the work completion determination unit 23 refers to the atmospheric pressure sensor value 243 extracted in step S11, and determines whether or not the work chamber 50 has moved to the hoistway floor surface after the machine room 50 stayed in step S12. .. More specifically, the work completion determination unit 23 determines, in the extracted atmospheric pressure sensor value 243, between the time of stay of 30 minutes or more of the machine room 50 determined in step S12 and the time of leaving the hoistway floor. It is determined whether or not a value corresponding to the relative atmospheric pressure reference value “P” of the surface (pit) is measured. It may be determined whether or not the value corresponding to the relative reference value of the floor surface of the hoistway is staying for a predetermined time (shortest time allotted for confirmation of the oil amount in the oil-type shock absorber) or more. When the movement to the floor surface of the hoistway can be confirmed in step S15 (YES in step S15), it is determined that the oil amount confirmation of the oil-type shock absorber (step S7 in FIG. 3, pressure change H5 in FIG. 4) is normally performed. It can be estimated, and the process proceeds to step S16. On the other hand, if the movement to the floor surface of the hoistway cannot be confirmed in step S15 (NO in step S15), it can be estimated that the oil amount confirmation of the oil-type shock absorber is not normally performed, and thus the process proceeds to step S17.

Although not shown in the flowchart of FIG. 5, in the work completion determination process according to the present embodiment, the same determination as in steps S12 to S15 is performed to further confirm whether the car is overheated (step of FIG. 3). It may be determined whether or not S4, the atmospheric pressure change H2 of FIG. 4) has been performed. Although a detailed description of this determination processing is omitted, whether or not the atmospheric pressure sensor value 243 extracted in step S11 is moved to the machine room 50 before the time zone that is the determination target in step S12. Should be determined.

Step S16 is executed when a positive result is obtained in each of the above steps (steps S12 to S15) and it is determined that each step of the maintenance work has been correctly performed. At this time, the work completion determination unit 23 (or the work schedule planning unit 22) re-registers the status of the work performance 244 registered in the work performance 244 from “temporary completion” to “executed”. The work completion determination unit 23 (or the work schedule planning unit 22) also reports to the administrator that a series of maintenance work has been normally performed using a screen for registering a schedule plan, an email, or the like. You can

On the other hand, step S17 is executed when a negative result is obtained in any of the above steps (steps S12 to S15) and it is determined that any one of the maintenance work steps has not been correctly performed. At this time, the work schedule planning unit 22 alerts the worker using a screen for registering the schedule plan, an electronic mail, etc., and warns that the work replanning is necessary. In addition, the work completion determination unit 23 (or the work schedule planning unit 22) re-registers the status of the work performance 244 registered in the work performance 244 from “temporary completion” to “unexecuted”. Note that, in the warning in step S17, which step in the series of maintenance work is determined to be abnormal may be output based on the determination results in steps S12 to S15. By doing so, the administrator can grasp in detail where there is a problem in the behavior history of the worker, and can further utilize it for evidence of work execution, educational activities, and the like.

After the processing of step S16 or step S17, the work completion determination processing ends. After the processing of step S16 or step S17, the status “temporary completion” of the work record 244 registered by the work record registration unit 15 is “executed” indicating that the work has been normally executed, or the work is normal. It is updated to "not yet performed" indicating that re-planning is not performed and the final status of the work record 244 is confirmed.

As described above, according to the work management system 1 according to the present embodiment, as described in detail with reference to FIGS. 3 and 4, based on the time series change of the relative atmospheric pressure values (the atmospheric pressure sensor values 171, 243), The behavior history of the worker in the maintenance work of the elevator 40 (more specifically, the maintenance work including the overhaul of the brake 46) can be tracked and grasped with high accuracy. Furthermore, by performing the work completion determination process shown in FIG. 5, the inspection items (processes) that must be performed by the worker in the maintenance work are normally judged based on the time series change of the relative atmospheric pressure value. It is possible to determine with high accuracy whether or not the above has been performed. Thus, the work management system 1 according to the present embodiment can prevent omission of maintenance work. Further, since the manager can grasp the problematic point from the highly accurate action history of the worker, it can be utilized for evidence of work execution, educational activities and the like.

In the above example, when the worker enters the building (when the entry/exit registration unit 14 records the entry time), the atmospheric pressure value of the atmospheric pressure measured by the atmospheric pressure sensor 12 is set to the reference value “0”. , And the relative atmospheric pressure reference value on the other floor is calculated using “F” and “P”. However, in the work management system 1 according to the present embodiment, it is determined in advance during a series of maintenance work. The relative atmospheric pressure reference value may be corrected at the time of executing the operation capable of specifying the position. Specifically, for example, when the brake 46 whose work position can be specified in the machine room 50 is overhauled, the relative atmospheric pressure reference value can be corrected using the actual atmospheric pressure value measured by the atmospheric pressure sensor 12. When the sensor value (atmospheric pressure value) is corrected in this way, it is possible to deal with the case where the relative atmospheric pressure reference value fluctuates due to changes in the environment during work, so the behavior history of the worker can be calculated with higher accuracy. It can be tracked and grasped.

It should be noted that the present invention is not limited to the above-described embodiments, but includes various modifications. The above-described embodiments have been described in order to explain the present invention in an easy-to-understand manner, and the present invention is not necessarily limited to those having all the configurations described, and may be appropriately configured in other configurations. It can be applied.

Further, the above-described respective configurations, functions, processing units, processing means, etc. may be realized by hardware by designing a part or all of them, for example, with an integrated circuit. Further, each of the above-described configurations, functions, and the like may be realized by software by a processor interpreting and executing a program that realizes each function. Information such as a program, a table, and a file that realizes each function can be stored in a memory, a recording device such as a hard disk and an SSD (Solid State Drive), or a recording medium such as an IC card, an SD card, and a DVD.

Further, in the drawings, control lines and information lines are shown as being considered necessary for explanation, and not all control lines and information lines are shown on a product. In practice, it may be considered that almost all configurations are connected to each other.

1 Work Management System 10 Smart Device 11 Transmitting/Receiving Unit 12 Atmospheric Pressure Sensor 13 Atmospheric Pressure Sensor Value Registering Unit 14 Admission/Exiting Registration Unit 15 Work Record Registering Unit 16 Display 17 Storage 20 Center Device 21 Transmitting/Receiving 22 Work Schedule Planning 23 Work Completion determination unit 24 Storage unit 30 Wide area network 40 Elevator 41 Hoistway 42 Car basket 43 Rope 44 Balance weight 45 Drive device 46 Brake 47 Oil buffer 50 Machine room 171 Pressure sensor value 241 Work schedule 242 Entrance/exit time 243 Atm Sensor value 244 Work record 245 Atmospheric pressure change condition 246 Floor information

Claims (7)

A work management system for estimating the action history of a worker who performs maintenance work on an elevator,
A smart device carried by the worker,
A center device capable of communicating with the smart device,
Equipped with
The smart device is
An atmospheric pressure sensor that measures atmospheric pressure,
An atmospheric pressure sensor value registration unit for registering an atmospheric pressure sensor value indicating a relative time series change of the atmospheric pressure value measured by the atmospheric pressure sensor,
An entry/exit registration unit that registers the entry time and the exit time of the worker in the building where the elevator is laid,
Have
The center device is
The atmospheric pressure sensor value registered by the atmospheric pressure sensor value registration unit along with the execution of the maintenance work, and the entrance time and the exit time registered by the entrance/exit registration unit along with the execution of the maintenance work And a storage unit that stores the atmospheric pressure change condition in which the characteristic condition of the atmospheric pressure change when the maintenance work is normally performed is preset,
By comparing the atmospheric pressure sensor value stored in the storage unit and the atmospheric pressure change condition, a work completion determination unit that determines whether or not the maintenance work is normally performed,
A work management system characterized by having. The atmospheric pressure sensor value registration unit uses the atmospheric pressure value measured by the atmospheric pressure sensor when the admission/exit registration unit has registered the admission time as a reference value of “0”, and thereafter performs the measurement by the atmospheric pressure sensor. The work management system according to claim 1, wherein a relative atmospheric pressure value is registered as the atmospheric pressure sensor value. The center device is
Further having a work schedule planning unit for registering the work schedule of the maintenance work,
When the work completion determination unit determines that the maintenance work is not normally performed, the work schedule planning unit warns that the work schedule of the maintenance work needs to be re-planned. The work management system according to claim 1, wherein: The maintenance work includes overhaul of the elevator brakes located in the machine room of the building,
As one of the atmospheric pressure change conditions, one section of the atmospheric pressure sensor value is a reference value of a relative atmospheric pressure value corresponding to the altitude of the machine room for a predetermined time or more that is assumed to be required for the brake overhaul. The work management system according to claim 2, wherein what is shown is set. A work management method using a work management system that estimates the behavior history of a worker who performs maintenance work on an elevator,
The work management system includes a smart device carried by the worker, and a center device capable of communicating with the smart device,
A measuring step in which the smart device measures atmospheric pressure with an atmospheric pressure sensor;
The smart device, an atmospheric pressure sensor value registration step of registering an atmospheric pressure sensor value indicating a relative time-series change of the atmospheric pressure value measured in the measuring step,
An admission/exit registration step in which the smart device registers an admission time and an exit time of the worker to the building in which the elevator is laid,
The center device has the atmospheric pressure sensor value registered in the atmospheric pressure sensor value registration step associated with the maintenance work, and the admission registered in the entrance/exit registration step associated with the maintenance work. A storage step of storing a time and a leaving time, and an atmospheric pressure change condition in which a characteristic condition of the atmospheric pressure change when the maintenance work is normally performed is preset in a predetermined storage unit,
The center device, by comparing the atmospheric pressure sensor value stored in the storage unit and the atmospheric pressure change conditions, a work completion determination step of determining whether the maintenance work is normally performed,
A work management method comprising: In the atmospheric pressure sensor value registration step, the smart device sets the atmospheric pressure value measured by the atmospheric pressure sensor in the measurement step at a timing at which the entry time is registered in the entry/exit registration step to a reference value of "0". The work management method according to claim 5, wherein the relative atmospheric pressure value of the subsequent measurement value by the atmospheric pressure sensor is registered as the atmospheric pressure sensor value. A work schedule planning step in which the center device registers a work schedule of the maintenance work;
When it is determined in the work completion determination step that the maintenance work is not normally performed, the center device needs to re-plan the work schedule of the maintenance work registered in the work schedule planning step. The work management method according to claim 5, further comprising: a warning step of warning the effect.

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