JP7016454B2 - Judgment device, judgment method and judgment program - Google Patents

Description

The present invention relates to a determination device, a determination method, and a determination program.

In dangerous work, it is required to accurately inform the worker of the possibility of a dangerous event. In addition, the dangerous event means all the events which endanger the worker. Specific examples of dangerous events are an event that injures a worker, an event that may injure a worker, an event that impairs the health of the worker, and an event that may impair the health of the worker.

Patent Document 1 discloses a technique for notifying a worker engaged in maintenance and inspection work in a hoistway of the possibility of a dangerous event. More specifically, Patent Document 1 discloses a method of guaranteeing the safety of an operator by notifying the operator of a warning when a preset alert condition is satisfied. ..

Japanese Unexamined Patent Publication No. 2016-0595950

In the method of Patent Document 1, the notification device alerts the worker with a warning to guarantee the safety of the worker.

However, in work in which the possibility of danger increasing in a short time, the time from alerting the worker to the actual occurrence of danger becomes very short.

Therefore, the method of Patent Document 1 has a problem that the avoidance action of the worker may not be in time and the worker may be endangered.

The main object of the present invention is to solve such a problem. More specifically, it is a main object of the present invention to notify the possibility of a dangerous event at an appropriate timing so that the worker can take evasive action.

The determination device according to the present invention is
Extraction of candidate work that is one or more work that may be performed next to the work started by the worker Extraction of candidate work that may cause a dangerous event due to the execution as extraction candidate work Department and
Based on the probability that the extraction candidate work extracted by the extraction unit will be executed next to the start work, the operator determines the possibility of a dangerous event occurring due to the execution of the extraction candidate work. It also has a notification determination unit that determines whether or not to notify at least one of the persons involved in the work.

According to the present invention, the possibility that a dangerous event may occur can be notified at an appropriate timing, and as a result, the worker can take evasive action.

The figure which shows the hardware configuration example of the determination apparatus which concerns on Embodiment 1. FIG. The figure which shows the functional structure example of the determination apparatus which concerns on Embodiment 1. FIG. The figure which shows the example of the implementation probability information which concerns on Embodiment 1. The figure which shows the example of the dangerous event list which concerns on Embodiment 1. The flowchart which shows the operation example of the determination apparatus which concerns on Embodiment 1. The figure which shows the functional structure example of the determination apparatus which concerns on Embodiment 2. The flowchart which shows the operation example of the determination apparatus which concerns on Embodiment 2. The figure which shows the functional structure example of the determination apparatus which concerns on Embodiment 3. FIG. The figure which shows the example of the dangerous event list which concerns on Embodiment 3. The flowchart which shows the operation example of the determination apparatus which concerns on Embodiment 3. The figure which shows the functional structure example of the determination apparatus which concerns on Embodiment 4. The figure which shows the example of the dangerous event list which concerns on Embodiment 4. The flowchart which shows the operation example of the determination apparatus which concerns on Embodiment 4. The figure which shows the functional structure example of the determination apparatus which concerns on Embodiment 5. The figure which shows the example of the dangerous event list which concerns on Embodiment 5. The flowchart which shows the operation example of the determination apparatus which concerns on Embodiment 5.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following description and drawings of the embodiments, those having the same reference numerals indicate the same parts or corresponding parts.
In the following embodiment, the explanation will be advanced using the maintenance work of the elevator as an example of the work.

Embodiment 1.
*** Explanation of configuration ***
FIG. 1 shows a hardware configuration example of the determination device 30 according to the present embodiment.

The determination device 30 informs the worker of the possibility that a dangerous event may occur based on the work situation of the worker.
The determination device 30 is connected to the elevator control panel 10, the sensor 20, the auxiliary storage device 40, and the notification device 50.
The operation procedure of the determination device 30 corresponds to the determination method. Further, the program that realizes the operation of the determination device 30 corresponds to the determination program.

The determination device 30 includes a control panel signal interface 31, a sensor interface 32, a processor 33, a memory 34, and a notification device interface 35.
The control panel signal interface 31 communicates with the elevator control panel 10.
The sensor interface 32 communicates with the sensor 20.
The processor 33 is a central processing unit.
The memory 34 is a main storage device, and a program stored in the auxiliary storage device 40 is loaded. Further, the program is read by the processor 33 and executed.
The notification device interface 35 communicates with the notification device 50.

The elevator control panel 10 controls operations related to the elevator, such as vertical movement of the elevator and opening / closing of doors.

The sensor 20 acquires the position of the operator. Specific examples of the sensor 20 include a camera, a motion sensor, a wearable sensor, a pressure sensor, an acceleration sensor, a GPS (Global Positioning System) receiver, and the like.

The auxiliary storage device 40 includes a car position detection unit 3301, a worker operation signal detection unit 3302, a worker position detection unit 3303, a work estimation unit 3304, an implementation probability update unit 3305, an extraction unit 3306, and a notification determination unit 3307, which will be described later. And the program that realizes the function of the notification unit 3308 is stored. As a specific example, the auxiliary storage device 40 is a storage medium such as a USB (Universal Serial Bus) memory, an HDD (Hard Disk Drive), an SD (Secure Digital) (registered trademark) card, a database, an online storage, and a cloud storage.

The notification device 50 notifies the operator of the possibility of a dangerous event occurring. As a specific example, the notification device 50 is a buzzer, an alarm device, a speaker, a mobile terminal, a display, a wearable device, or the like.
The notification device 50 stimulates and notifies the five senses of the operator. Alternatively, the notification device 50 conveys linguistic information such as words or characters by visual information and voice information to notify the notification. Further, the notification device 50 may notify one or more workers of the same notification content or may notify different notification contents. Further, the notification device 50 notifies an alert notifying the danger, a movement guidance to a safe position, and the like.

FIG. 2 shows a functional configuration diagram of the determination device 30 according to the present embodiment.

The determination device 30 includes a car position detection unit 3301, a worker operation signal detection unit 3302, a worker position detection unit 3303, a work estimation unit 3304, an implementation probability update unit 3305, an extraction unit 3306, a notification determination unit 3307, and a notification unit 3308. It includes an information management unit 341 and a dangerous event storage unit 342.

The car position detection unit 3301 detects the position of the elevator car based on the car position information received from the elevator control panel 10. The car position information indicates the position of the elevator car.

The worker operation signal detection unit 3302 detects the worker's operation based on the worker's operation signal received from the elevator control panel 10. The operator operation signal indicates the operation performed by the operator.

The worker position detection unit 3303 detects the position of the worker based on the worker position information received from the worker position acquisition device 21 of the sensor 20. The worker position acquisition device 21 detects the position of the worker. The worker position information indicates the position of the worker detected by the worker position acquisition device 21.

The work estimation unit 3304 estimates the start work, which is the work started by the worker, based on the detected position of the car, the operation of the worker, and the position of the worker. As a specific example, the work estimation unit 3304 detects that the worker has started the work when he / she notifies that the worker has started a new work by using the terminal device.

The implementation probability update unit 3305 records the work performed by the worker and updates the implementation probability information based on the record.
In the execution probability information, a plurality of combinations of a plurality of operations for which the execution order is defined are described. Further, the execution probability information indicates the probability that a plurality of operations included in the combination will be executed according to the execution order for each combination. Therefore, a combination of three or more works may be described in the execution probability information. In the present embodiment, for the sake of simplification of the explanation, the description will be given using the implementation probability information in which the combination of the two operations is described.

The extraction unit 3306 extracts the extraction candidate work from the candidate work.
Candidate work is one or more work that may be performed after the work to be started. The extraction candidate work is a candidate work in which a dangerous event may occur due to the implementation.
The process performed by the extraction unit 3306 corresponds to the extraction process.

The notification determination unit 3307 determines whether or not to notify at least one of the worker and the person involved in the work of the possibility of occurrence of a dangerous event based on the implementation probability information. A work-related person is a person who is involved in the work. Worker-related persons include a manager who manages the worker and an assistant who assists the worker.
The possibility of occurrence of a dangerous event is the possibility that a dangerous event will occur due to the execution of the extraction candidate work extracted by the extraction unit 3306.
Then, when the notification determination unit 3307 determines to notify the possibility of occurrence of a dangerous event, the notification determination unit 3308 outputs a notification determination signal to the notification unit 3308. In the notification decision signal, the target person (worker or work-related person, worker and work-related person) who should be notified of the possibility of occurrence of a dangerous event and the details of the dangerous event that may occur due to the execution of the extraction candidate work are notified. Will be done.
The processing performed by the notification determination unit 3307 corresponds to the notification determination processing.

The notification unit 3308 transmits a notification command to the notification device 50 when a notification determination signal is input from the notification determination unit 3307.
The notification command is a command instructing the notification device 50 to notify the possibility of occurrence of a dangerous event. The notification command includes the content notified by the notification determination signal.

The information management unit 341 manages the implementation probability information for each worker.

The dangerous event storage unit 342 stores the dangerous event list.
The hazard list shows the work and the hazards that may occur as a result of performing the work. The details of the dangerous event list will be described later.

FIG. 3 shows an example of the implementation probability information T10 according to the present embodiment.
The information management unit 341 stores the implementation probability information T10 shown in FIG.
The implementation probability information T10 indicates a plurality of started operations. Further, the execution probability information T10 indicates a candidate work that may be performed next to the start work for each start work. Further, the execution probability information T10 indicates the probability (implementation probability) that the candidate work is executed.
In the example of FIG. 3, the work described in the leftmost column is the start work. Then, work other than the start work is a candidate work. In FIG. 3, the probability that the start work: # 001 is followed by the candidate work: # 001 is 0.10. Further, the probability that the start work: # 001 is followed by the candidate work: # 002 is 0.10. Further, the probability that the start work: # 001 is followed by the candidate work: #XXX is 0.02.
The implementation probability information T10 is preset for each worker based on the past work records of each worker and the like. When there are two or more workers, the implementation probability information T10 for the number of workers is set.
Further, the implementation probability information T10 is updated by the implementation probability update unit 3305 based on the work record of each worker and the like.

FIG. 4 shows an example of the dangerous event list T21 according to the present embodiment.
The dangerous event storage unit 342 stores the dangerous event list T21 shown in FIG.
The dangerous event list T21 shows a combination of dangerous events and work. That is, when the worker performs the work described in the dangerous event list T21, the dangerous event described in the dangerous event list T21 may occur. The work shown in FIG. 4 is either a start work or a candidate work.
The dangerous event list T21 is prepared for each number of workers. FIG. 4A shows a dangerous event list T21 when there is only one worker. FIG. 4B shows a dangerous event list T21 when there are two workers.
The dangerous event list T21 of FIG. 4A shows that when the worker 1 performs the work: # 001, the dangerous event: 001 may occur.
In the dangerous event list T21 of FIG. 4B, if the worker 1 performs the work: # 001 and the worker 2 performs the work: # 012 in parallel, the dangerous event: 011 may occur. Represents that there is.
The dangerous event list T21 is preset based on past disaster cases, hiyari hat cases, and the like.

*** Explanation of operation ***
Next, an operation example of the determination device 30 according to the present embodiment will be described with reference to the flowchart of FIG. In the following, an example of one worker will be described. An example of two or more workers will be described separately.

First, the car position detection unit 3301 detects the position of the elevator car based on the car position information received from the elevator control panel 10 (step S10). Then, the car position detection unit 3301 notifies the work estimation unit 3304 of the position of the car.

Next, the worker operation signal detection unit 3302 detects the worker's operation based on the worker's operation information received from the elevator control panel 10 (step S20). Then, the worker operation signal detection unit 3302 notifies the work estimation unit 3304 of the worker's operation.

Next, the worker position detection unit 3303 detects the position of the worker based on the worker position information received from the worker position acquisition device 21 (step S30). Then, the worker position detection unit 3303 notifies the work estimation unit 3304 of the position of the worker.

Next, the work estimation unit 3304 estimates the work to be started by the worker (step S40). Specifically, the work estimation unit 3304 is notified by the car position notified by the car position detection unit 3301, the worker operation notified by the worker operation signal detection unit 3302, and the worker position detection unit 3303. Estimate the worker's starting work based on the worker's position. Specifically, the work estimation unit 3304 refers to the setting information regarding the position of the car during work, the operation of the worker, and the position of the worker in all the work registered in advance in the memory 34 or the auxiliary storage device 40. do. The work estimation unit 3304 estimates the work by searching for the work corresponding to the setting information from the notified car position, the operator's operation, and the worker's position.
When the work estimation unit 3304 detects the operation of the worker indicating that the work has been completed, the work estimation unit 3304 estimates the end of the work.
Further, the work estimation unit 3304 specifies the number of workers from the position of the worker. As mentioned above, here it is assumed that the number of workers is one.
Then, the work estimation unit 3304 notifies the extraction unit 3306 of the estimation result of the start work and the number of workers. Further, the work estimation unit 3304 notifies the implementation probability update unit 3305 of the estimation result of the start work.

In this embodiment, the work estimation unit 3304 estimates the start work based on the position of the car, the operation of the worker, and the position of the worker. However, for example, when the worker notifies the determination device 30 of the start work by using the terminal device, the steps S10 to S40 can be omitted.

Next, the extraction unit 3306 extracts the extraction candidate work (step S50).
Specifically, the extraction unit 3306 reads the implementation probability information T10 from the information management unit 341. Then, the extraction unit 3306 extracts candidate work based on the implementation probability information T10. More specifically, the extraction unit 3306 extracts as a candidate work a work whose probability of being executed next to the start work notified from the work estimation unit 3304 exceeds 0.
Further, the extraction unit 3306 reads out the danger event list T21 from the danger event storage unit 342. Then, the extraction unit 3306 extracts the candidate work included in the dangerous event list T21 from the extracted candidate work as the extraction candidate work.
Then, the extraction unit 3306 notifies the notification determination unit 3307 of the worker's start work, the number of workers, and the extraction candidate work.

Next, the notification determination unit 3307 determines whether or not the start work causes a dangerous event (step S60).
Specifically, the notification determination unit 3307 reads the dangerous event list T21 from the dangerous event storage unit 342. Then, the notification determination unit 3307 confirms whether the worker's start work is included in the dangerous event list T21. When the start work is included in the dangerous event list T21, the notification determination unit 3307 determines that the start work causes a dangerous event.
If it is determined that the start work causes a dangerous event, the process proceeds to step S80. On the other hand, if it is determined that the start work does not cause a dangerous event, the process proceeds to step S70.

If it is determined in step S60 that the start work does not cause a dangerous event, the notification determination unit 3307 determines whether or not the execution probability is higher than the threshold value (step S70).
Specifically, the notification determination unit 3307 reads the implementation probability information T10 from the information management unit 341. Then, the notification determination unit 3307 extracts the execution probability corresponding to the combination of the start work and the extraction candidate work from the execution probability information T10. Further, the notification determination unit 3307 compares the extracted execution probability with the set threshold value.
If the execution probability is higher than the set threshold value, the process proceeds to step S80. On the other hand, when the execution probability is equal to or less than the set threshold value, the process proceeds to step S90.

If YES in step S60 or YES in step S70, the notification determination unit 3307 determines to notify the possibility of occurrence of a dangerous event (step S80).
Then, the notification determination unit 3307 outputs a notification determination signal to the notification unit 3308. The notification unit 3308 transmits a notification command to the notification device 50 according to the notification determination signal from the notification determination unit 3307.

If the result is NO in step S70 or if step S80 is executed, the execution probability updating unit 3305 detects the end of the work based on the estimation result received from the work estimation unit 3304 (step S90).
If the work is completed, the process proceeds to step S100. On the other hand, if the work is not completed, the process proceeds to step S10.

When it is detected in step S90 that the work is completed, the execution probability updating unit 3305 determines whether or not the work performed by the worker satisfies the specified criteria (step S100).
Specifically, the implementation probability update unit 3305 determines whether or not the work performed by the worker is suitable for use as learning data. As a specific example, the implementation probability updating unit 3305 determines in step S100 depending on whether or not the total working time is longer than the set time.
If it is determined that the work meets the specified criteria, the process proceeds to step S110. On the other hand, if it is not determined that the work meets the specified criteria, the process ends.

If it is determined in step S100 that the work satisfies the specified criteria, the execution probability updating unit 3305 updates the worker's execution probability information T10 (step S110).
As a specific example, the implementation probability update unit 3305 sets the work transition as a Markov chain model or a Bayesian network. Further, as a specific example, the implementation probability updating unit 3305 inputs the transition process of the work in the time series in the work of the elevator, performs maximum likelihood estimation of the transition matrix component, and outputs the transition probability between each work. Then, the implementation probability information is updated.

Next, an operation example of the determination device 30 when there are two or more workers will be described.

When it is determined that the number of workers is two or more as a result of performing steps S10 to S40, the extraction unit 3306 extracts the extraction combination in step S50. More specifically, the extraction unit 3306 extracts candidate work for each worker. Then, the extraction unit 3306 obtains a plurality of combinations of candidate works by combining the candidate works of each extracted worker. Further, the extraction unit 3306 extracts the combination registered in the danger event list T21 according to the number of workers from the combination of the plurality of candidate works as the extraction combination.
Further, the extraction unit 3306 notifies the notification determination unit 3307 of the start work of each worker, the number of workers, and the extraction combination.

Next, in step S60, the notification determination unit 3307 confirms whether the combination of the start work of each worker is included in the danger event list T21 according to the number of workers.
If the combination of start operations is included in the dangerous event list T21, the process proceeds to step S80. On the other hand, if the combination of starting operations is not included in the dangerous event list T21, the process proceeds to step S70.

In step S70, the notification determination unit 3307 integrates the probabilities that the extraction candidate work of each worker included in the extraction combination is executed. The integrated value is the probability that the candidate work of each worker is carried out in parallel. Then, the notification determination unit 3307 compares the integrated value with the set threshold value.
If the integrated value is higher than the set threshold value, the process proceeds to step S80. If the integrated value is equal to or less than the set threshold value, the process proceeds to step S90.
Since steps S80 to S110 are as described above, the description thereof will be omitted.

*** Explanation of the effect of the embodiment ***
As described above, in the present embodiment, the possibility of a dangerous event occurring is predicted from the current start work of the worker based on the implementation probability of the candidate work to be executed next. Then, when there is a high possibility that a dangerous event will occur, the notification device is operated. Therefore, according to the present embodiment, the worker can take preventive safety measures against the danger that may be caused in the future. Therefore, the worker can take evasive action in advance against future dangers.
Further, in the present embodiment, it is also determined whether or not the current starting work itself may cause a dangerous event. Then, in the present embodiment, the notification device is operated when there is a high possibility that the starting work causes a dangerous event. Therefore, according to the present embodiment, even if the prediction based on the extraction candidate work previously performed is not correct, the worker can take measures to ensure safety at the stage of the start work. It is possible.

Embodiment 2.
In the present embodiment, an example in which the control signal invalidation unit invalidates the operator operation signal when the notification determination unit 3307 determines to notify the possibility of occurrence of a dangerous event will be described.
In this embodiment, the difference from the first embodiment will be mainly described.
The matters not described below are the same as those in the first embodiment.

FIG. 6 is a functional configuration diagram of the determination device 30 according to the present embodiment.
In the present embodiment, the determination device 30 is newly provided with a control signal invalidation unit 3309 and is connected to the elevator control panel 10. The same components as those in the first embodiment are designated by the same numbers, and the description thereof will be omitted.

FIG. 7 is a flowchart showing an operation example of the determination device 30 according to the embodiment. The same operations as those in the first embodiment are designated by the same numbers, and the description thereof will be omitted.

When the notification determination unit 3307 determines that the possibility of occurrence of a dangerous event is notified, the control signal invalidation unit 3309 transmits a signal for disabling the operator operation signal to the elevator control panel 10 (step S120). ..
As a result, the elevator control panel 10 invalidates the operator operation signal.
The operator operation signal is a control signal that the operator inputs to the control panel when the operator performs an operation of moving the elevator up and down, an operation of opening and closing the door, and the like.
Further, invalidation means canceling the operator operation signal and invalidating the operator's operation.

As described above, when the possibility of occurrence of a dangerous event is predicted by carrying out the start work or the extraction candidate work, the worker operation signal is invalidated so that the start work or the extraction candidate work is not carried out. As a result, the safety of work can be further improved.

Embodiment 3.
In the present embodiment, an example of determining the possibility that a dangerous event may occur when the worker performs the work without facing a specific line-of-sight direction will be described.
In this embodiment, the difference from the second embodiment will be mainly described.
The matters not described below are the same as those in the second embodiment.

FIG. 8 is a functional configuration diagram of the determination device 30 according to the embodiment.
In the present embodiment, the determination device 30 is newly provided with the worker line-of-sight direction detection unit 3310, and is connected to the worker line-of-sight direction acquisition device 22 of the sensor 20.
The worker line-of-sight direction acquisition device 22 acquires the line-of-sight direction of the worker.
The same components as those in the second embodiment are designated by the same numbers, and the description thereof will be omitted.

FIG. 9 is an example of a dangerous event list according to an embodiment.
The dangerous event storage unit 342 stores the dangerous event list T22 shown in FIG.
The dangerous event list T22 shows the combination of the dangerous event, the line-of-sight direction of the worker, and the work. That is, if the line-of-sight direction of the worker is not in the specific direction described in the dangerous event list T22 and the work described in the dangerous event list T22 is performed, the dangerous event described in the dangerous event list T22 may occur. .. Specific examples of the above-mentioned specific direction are a weight direction, a car downward direction, a hoistway top direction, and the like. The work shown in FIG. 9 is either a start work or a candidate work.
The dangerous event list T22 is prepared for each number of workers. FIG. 9A shows a dangerous event list T22 when there is only one worker. FIG. 9B shows a dangerous event list T22 when there are two workers.
The dangerous event list T22 of FIG. 9A shows that if the worker 1 performs the work: # 101 without looking at the hoistway top, the dangerous event: 101 may occur.
In the dangerous event list T22 of FIG. 9B, when the worker 1 performs the work: # 111 and the worker 2 performs the work: # 112 without looking at the weight in parallel, the dangerous event: 111 is performed. Indicates that it may occur.

FIG. 10 is a flowchart showing an operation example of the determination device 30 according to the embodiment. The same operation as in the second embodiment is assigned the same number and the description thereof will be omitted.

After the completion of step S30, the worker line-of-sight direction detection unit 3310 detects the line-of-sight direction of the worker based on the line-of-sight direction information (step S130). The line-of-sight direction information indicates the line-of-sight direction of the worker acquired by the worker line-of-sight direction acquisition device 22.
Then, the worker line-of-sight direction detection unit 3310 notifies the extraction unit 3306 of the worker's line-of-sight direction.

After the step S40 is completed, the extraction unit 3306 extracts the extraction candidate work using the dangerous event list T22 (step S500).
First, the extraction unit 3306 reads out the danger event list T22 from the danger event storage unit 342. Then, the extraction unit 3306 determines whether or not the line-of-sight direction of the operator matches the line-of-sight direction shown in the dangerous event list T22. When the line-of-sight direction of the worker matches the line-of-sight direction shown in the dangerous event list T22, the extraction unit 3306 extracts candidate work as in the first embodiment. Further, the extraction unit 3306 extracts, among the extracted candidate works, the candidate work that matches the work shown in the dangerous event list T22 as the extraction candidate work.
When the dangerous event list T22 shown in FIG. 9A is used, the work: # 101 is extracted as the extraction candidate work when the worker is not looking at the top of the hoistway.
When there are two or more workers, the extraction unit 306 extracts a combination of worker candidate works that meet the conditions of the danger event list T22 shown in FIG. 9 (b) as an extraction combination. Specifically, when one of the workers is not looking at the weight, the candidate work of the worker who is not looking at the weight corresponds to work: # 112, and the candidate work of the other worker is work: # 111. When, the extraction unit 306 extracts work: # 112 and work: # 111 as an extraction combination.
Then, the extraction unit 3306 notifies the notification determination unit 3307 of the extraction candidate work or the extraction combination.

Next, the notification determination unit 3307 determines whether or not the start work causes a dangerous event by using the dangerous event list T22 (step S600).
First, the notification determination unit 3307 reads the dangerous event list T22 from the dangerous event storage unit 342. Further, the notification determination unit 3307 confirms whether or not the combination of the line-of-sight direction of the worker and the estimated start work matches the conditions of the line-of-sight direction and the start work shown in the dangerous event list T22. The notification determination unit 3307 determines that the start work causes a dangerous event when the combination of the line-of-sight direction and the start work matches the conditions of the line-of-sight direction and the start work shown in the dangerous event list T22.
Further, when the number of workers is two or more, the notification determination unit 3307 meets the conditions of the danger event list T22 shown in FIG. 9 (b) in the combination of the line-of-sight direction of the two or more workers and the start work. Check if it is not. The notification determination unit 3307 determines that the start work causes a dangerous event when the combination of the line-of-sight direction of two or more workers and the start work meets the conditions shown in the dangerous event list T22. Specifically, when one of the workers is not looking at the weight, the work of the worker who is not looking at the weight corresponds to work: # 112, and the work of the other worker is work: # 111. At this time, the notification determination unit 3307 determines that the start work of any worker or all workers causes a dangerous event.
If it is determined that the start work causes a dangerous event, the process proceeds to step S80. On the other hand, if it is determined that the start work does not cause a dangerous event, the process proceeds to step S70.

Since steps S70 to S120 are the same as those described in the first embodiment or the second embodiment, the description thereof will be omitted.

In this embodiment, the operation of the extraction unit and the notification determination unit using the danger event list T22 has been described, but extraction and notification determination may be performed in combination with the danger event list in other embodiments. ..

As described above, in the present embodiment, the accuracy of predicting the possibility of a dangerous event can be improved by adding the determination of the line-of-sight direction of the operator to the determination of the notification determination. Therefore, according to the present embodiment, the safety of work can be further enhanced.

Embodiment 4.
In this embodiment, an example of determining the possibility of a dangerous event occurring by the worker performing the work when the worker's physiological state is a specific state will be described.
In this embodiment, differences from the third embodiment will be mainly described.
The matters not described below are the same as those in the third embodiment.

FIG. 11 is a functional configuration diagram of the determination device 30 according to the present embodiment.
In the present embodiment, the determination device 30 is newly provided with the worker physiological state detection unit 3311 and is connected to the worker physiological state acquisition device 23 of the sensor 20.
The worker physiological state acquisition device 23 detects the worker's physiological state from the heart rate, body temperature, respiration, and the like. The physiological state is a physical or mental state that changes with the passage of time. Specific examples of the physiological state include a state of involuntary state in which work is not concentrated, a state of high temperature disorder such as heat stroke, and a state of tension in an emergency response or the like when time is imminent.
The same components as those in the third embodiment are designated by the same numbers, and the description thereof will be omitted.

FIG. 12 is an example of the dangerous event list T23 according to the present embodiment.
The dangerous event storage unit 342 stores the dangerous event list T23 shown in FIG.
The dangerous event list T23 shows a combination of the dangerous event, the physiological state of the worker, and the work. That is, when the worker performs the work described in the dangerous event list T23 in the physiological state described in the dangerous event list T23, the dangerous event described in the dangerous event list T23 may occur. The work shown in FIG. 12 is either a start work or a candidate work.
The dangerous event list T23 is prepared for each number of workers. FIG. 12A shows a dangerous event list T23 when there is only one worker. FIG. 12B shows a dangerous event list T23 when there are two workers.
The dangerous event list T23 of FIG. 12A shows that if the worker 1 performs the work: # 201 in the high temperature failure state, the dangerous event: 201 may occur.
In the dangerous event list T23 of FIG. 12 (b), when the worker 1 performs the work: # 211 and the worker 2 performs the work: # 212 in parallel, the dangerous event: 211 occurs. Indicates that there is a possibility.

FIG. 13 is a flowchart showing an operation example of the determination device 30 according to the present embodiment. The same operations as those in the third embodiment are designated by the same numbers, and the description thereof will be omitted.

After the completion of step S30, the worker physiological state detection unit 3311 detects the worker's physiological state based on the worker's physiological state information (step S140). The worker's physiological state information shows the worker's physiological state acquired by the worker's physiological state acquisition device 23.
Then, the worker physiological state detection unit 3311 notifies the extraction unit 3306 of the worker's physiological state.

After the step S40 is completed, the extraction unit 3306 extracts the extraction candidate work using the dangerous event list T23 (step S510).
First, the extraction unit 3306 reads out the danger event list T23 from the danger event storage unit 342. Then, the extraction unit 3306 determines whether or not the physiological state of the worker matches the physiological state shown in the dangerous event list T23. When the physiological state of the worker matches the physiological state shown in the dangerous event list T23, the extraction unit 3306 extracts the candidate work as in the first embodiment. Further, the extraction unit 3306 extracts the candidate work that matches the work shown in the dangerous event list T23 from the extracted candidate work as the extraction candidate work.
When the dangerous event list T23 shown in FIG. 12 (a) is used, work: # 201 is extracted as an extraction candidate work when the worker is in a high temperature failure state.
When there are two or more workers, the extraction unit 3306 extracts a combination of worker candidate works that meet the conditions of the danger event list T23 shown in FIG. 12 (b) as an extraction combination. Specifically, when one of the workers is in a loose state, the candidate work of the worker in the loose state corresponds to work: # 212, and the candidate work of the other worker is work: # 211. In addition, the extraction unit 306 extracts work: # 212 and work: # 211 as an extraction combination.
Then, the extraction unit 3306 notifies the notification determination unit 3307 of the extraction candidate work or the extraction combination.

Next, the notification determination unit 3307 determines whether or not the start work causes a dangerous event by using the dangerous event list T23 (step S610).
First, the notification determination unit 3307 reads the dangerous event list T23 from the dangerous event storage unit 342. Further, the notification determination unit 3307 confirms whether or not the combination of the worker's physiological state and the estimated start work matches the conditions of the physiological state and the start work shown in the dangerous event list T23. The notification determination unit 3307 determines that the start work causes a dangerous event when the combination of the worker's physiological state and the estimated start work matches the conditions of the physiological state and the start work shown in the dangerous event list T23. do.
Further, in the notification determination unit 3307, when there are two or more workers, the combination of the physiological state of the two or more workers and the starting work meets the conditions of the danger event list T23 shown in FIG. 12 (b). Check if it is not. The notification determination unit 3307 determines that the start work causes a dangerous event when the combination of the physiological state of two or more workers and the start work meets the conditions shown in the dangerous event list T23. Specifically, when one of the workers is in a loose state, the start work of the worker in the loose state corresponds to work: # 212, and the start work of the other worker is work: # 211. Occasionally, the notification determination unit 3307 determines that the start work of any worker or all workers causes a dangerous event.
If it is determined that the start work causes a dangerous event, the process proceeds to step S80. On the other hand, if it is determined that the start work does not cause a dangerous event, the process proceeds to step S70.

Since steps S70 to S120 are the same as those described in the first to third embodiments, the description thereof will be omitted.

In this embodiment, the operation of the extraction unit and the notification determination unit using the danger event list T23 has been described, but extraction and notification determination may be performed in combination with the danger event list in other embodiments. ..

As described above, in the present embodiment, the accuracy of predicting the possibility of a dangerous event can be improved by adding the determination of the physiological state of the worker to the determination of the notification determination. Therefore, according to the present embodiment, the safety of work can be further enhanced.

Embodiment 5.
In the present embodiment, when the personality of the worker is a specific personality, an example of determining the possibility that a dangerous event occurs by the worker performing the work will be described.
In this embodiment, differences from the fourth embodiment will be mainly described.
The matters not described below are the same as those in the fourth embodiment.

FIG. 14 is a functional configuration diagram of the determination device 30 according to the present embodiment.
In the present embodiment, the determination device 30 is newly provided with the worker personality storage unit 343.
The worker personality storage unit 343 stores the preset personality of each worker.
The personality of the worker includes the temperament of the worker and the ability of the worker. A specific example of a worker's temperament is an impatient temperament. On the other hand, a specific example of the worker's ability is the reaction speed to the worker's stimulus.
The same components as those in the fourth embodiment are designated by the same numbers, and the description thereof will be omitted.

FIG. 15 is an example of the dangerous event list T24 according to the present embodiment.
The dangerous event storage unit 342 stores the dangerous event list T24 shown in FIG.
The dangerous event list T24 shows the combination of the dangerous event, the personality of the worker, and the work. That is, when a worker having the character described in the dangerous event list T24 performs the work described in the dangerous event list T24, the dangerous event described in the dangerous event list T24 may occur. The work shown in FIG. 15 is either a start work or a candidate work.
The dangerous event list T24 is prepared for each number of workers. FIG. 15A shows a dangerous event list T24 when there is only one worker. FIG. 15B shows a dangerous event list T24 when there are two workers.
The dangerous event list T24 of FIG. 15A shows that if the impatient worker 1 performs the work: # 301, the dangerous event: 301 may occur.
In the dangerous event list T24 of FIG. 15 (b), the worker 2 whose reaction speed is considerably slower than the average value performs work: # 312, and the worker 1 performs work: # 311 in parallel. , Dangerous event: Indicates that 311 may occur.

FIG. 16 is a flowchart showing an operation example of the determination device 30 according to the present embodiment. The same operations as those in the fourth embodiment are designated by the same numbers, and the description thereof will be omitted.

After the completion of step S40, the extraction unit 3306 acquires the personality of the worker from the worker personality storage unit 343 (step S150).

Next, the extraction unit 3306 extracts the extraction candidate work using the dangerous event list T24 (step S520).
First, the extraction unit 3306 reads out the danger event list T24 from the danger event storage unit 342. Then, the extraction unit 3306 determines whether or not the personality of the worker matches the personality shown in the dangerous event list T24. When the character of the worker matches the character shown in the dangerous event list T24, the extraction unit 3306 extracts candidate work as in the first embodiment. Further, the extraction unit 3306 extracts, among the extracted candidate works, the candidate work that matches the work shown in the dangerous event list T24 as the extraction candidate work.
When the danger event list T24 shown in FIG. 15A is used, work: # 301 is extracted as an extraction candidate work when the worker's personality is impatient.
When there are two or more workers, the extraction unit 3306 extracts a combination of worker candidate works that meet the conditions of the danger event list T24 shown in FIG. 15 (b) as an extraction combination. Specifically, when the reaction speed of one of the workers is considerably slower than the average value, the candidate work of the worker with a slow reaction speed corresponds to work: # 312, and the candidate work of the other worker. Is work: # 311 and the extraction unit 306 extracts work: # 312 and work: # 311 as an extraction combination.
Then, the extraction unit 3306 notifies the notification determination unit 3307 of the extraction candidate work or the extraction combination.

Next, the notification determination unit 3307 determines whether or not the start work causes a dangerous event by using the dangerous event list T24 (step S620).
First, the notification determination unit 3307 reads the dangerous event list T24 from the dangerous event storage unit 342. The notification determination unit 3307 confirms whether or not the combination of the worker's personality and the presumed start work matches the conditions of the character and the start work shown in the dangerous event list T24. The notification determination unit 3307 determines that the start work causes a dangerous event when the combination of the worker's personality and the presumed start work matches the conditions of the personality and the start work shown in the dangerous event list T24.
Further, when the number of workers is two or more, the notification determination unit 3307 determines whether or not the combination of the personality of the two or more workers and the start work meets the conditions of the danger event list T24 shown in FIG. 15 (b). Check if. The notification determination unit 3307 determines that the start work causes a dangerous event when the combination of the personality of two or more workers and the start work meets the conditions shown in the dangerous event list T24. Specifically, when the reaction speed of one of the workers is considerably slower than the average value, the work of the worker with a slow reaction speed corresponds to work: # 312, and the work of the other worker is started. Work: When # 311 is set, the notification determination unit 3307 determines that the start work of any worker or all workers causes a dangerous event.
If it is determined that the start work causes a dangerous event, the process proceeds to step S80. On the other hand, if it is determined that the start work does not cause a dangerous event, the process proceeds to step S70.

Since steps S70 to S120 are the same as those described in the first to fourth embodiments, the description thereof will be omitted.

In this embodiment, the operation of the extraction unit and the notification determination unit using the danger event list T24 has been described, but extraction and notification determination may be performed in combination with the danger event list in other embodiments. ..

As described above, in the present embodiment, the accuracy of prediction of the possibility that a dangerous event may occur can be improved by adding the determination of the personality of the worker to the determination of the notification determination. Therefore, according to the present embodiment, the safety of work can be further enhanced.

Although the embodiments of the present invention have been described above, one of these embodiments may be partially implemented.
Alternatively, two or more of these embodiments may be partially combined and carried out.
The present invention is not limited to these embodiments, and various modifications can be made as needed.

*** Explanation of hardware configuration ***
Finally, a supplementary explanation of the hardware configuration of the determination device 30 will be given.
The processor 33 shown in FIG. 1 is an IC (Integrated Circuit) that performs processing.
The processor 33 is a CPU (Central Processing Unit), a DSP (Digital Signal Processor), or the like.
The memory 34 shown in FIG. 1 is a RAM (Random Access Memory).
The control panel signal interface 31, the sensor interface 32, and the notification device interface 35 shown in FIG. 3 are electronic circuits that execute data communication processing, respectively.
The control panel signal interface 31, the sensor interface 32, and the notification device interface 35 are, for example, communication chips or NICs (Network Interface Cards), respectively.

An OS (Operating System) is also stored in the auxiliary storage device 40.
Then, at least a part of the OS is executed by the processor 33.
While the processor 33 executes at least a part of the OS, the car position detection unit 3301, the worker operation signal detection unit 3302, the worker position detection unit 3303, the work estimation unit 3304, the execution probability update unit 3305, the extraction unit 3306, and the notification unit. A program that realizes the functions of the determination unit 3307 and the notification unit 3308 is executed.
When the processor 33 executes the OS, task management, memory management, file management, communication control, and the like are performed.
Further, processing of the cache position detection unit 3301, the worker operation signal detection unit 3302, the worker position detection unit 3303, the work estimation unit 3304, the implementation probability update unit 3305, the extraction unit 3306, the notification determination unit 3307, and the notification unit 3308. At least one of the information, data, signal values and variable values indicating the result is stored in at least one of the memory 34, the auxiliary storage 40, the registers in the processor 33 and the cache memory.
Further, the functions of the car position detection unit 3301, the worker operation signal detection unit 3302, the worker position detection unit 3303, the work estimation unit 3304, the implementation probability update unit 3305, the extraction unit 3306, the notification determination unit 3307, and the notification unit 3308 are performed. The program to be realized may be stored in a portable recording medium such as a magnetic disk, a flexible disk, an optical disk, a compact disk, a Blu-ray (registered trademark) disk, or a DVD. Then, the functions of the car position detection unit 3301, the worker operation signal detection unit 3302, the worker position detection unit 3303, the work estimation unit 3304, the implementation probability update unit 3305, the extraction unit 3306, the notification determination unit 3307, and the notification unit 3308 are performed. A portable recording medium in which the program to be realized is stored may be distributed.

Further, the "section" of the car position detection unit 3301, the worker operation signal detection unit 3302, the worker position detection unit 3303, the work estimation unit 3304, the implementation probability update unit 3305, the extraction unit 3306, the notification determination unit 3307, and the notification unit 3308. May be read as "circuit" or "process" or "procedure" or "processing".
Further, the determination device 30 may be realized by a processing circuit. The processing circuit is, for example, a logic IC (Integrated Circuit), a GA (Gate Array), an ASIC (Application Specific Integrated Circuit), or an FPGA (Field-Programmable Gate Array).
In this case, the car position detection unit 3301, the worker operation signal detection unit 3302, the worker position detection unit 3303, the work estimation unit 3304, the implementation probability update unit 3305, the extraction unit 3306, the notification determination unit 3307, and the notification unit 3308 , Each realized as part of the processing circuit.
In this specification, the superordinate concept of the processor and the processing circuit is referred to as "processing circuit Lee".
That is, the processor and the processing circuit are specific examples of the "processing circuit Lee", respectively.

10 Elevator control panel, 20 sensors, 21 worker position acquisition device, 22 worker line-of-sight direction acquisition device, 23 worker physiological state acquisition device, 30 judgment device, 31 control panel signal interface, 32 sensor interface, 33 processor, 34 memory , 35 notification device interface, 40 auxiliary storage device, 50 notification device, 341 information management unit, 342 danger event storage unit, 343 worker personality storage unit, 3301 car position detection unit, 3302 worker operation signal detection unit, 3303 worker Position detection unit, 3304 work estimation unit, 3305 implementation probability update unit, 3306 extraction unit, 3307 notification determination unit, 3308 notification unit, 3309 control signal invalidation unit, 3310 worker line-of-sight direction detection unit, 3311 worker physiological state detection unit. ..

Claims (17)

Extraction of candidate work that is one or more work that may be performed next to the work started by the worker Extraction of candidate work that may cause a dangerous event due to the execution as extraction candidate work Department and
Based on the probability that the extraction candidate work extracted by the extraction unit will be executed next to the start work, the operator determines the possibility of a dangerous event occurring due to the execution of the extraction candidate work. And a determination device having a notification determination unit that determines whether or not to notify at least one of the persons involved in the work. The determination device further
A claim having a notification unit for notifying at least one of the worker and the person involved in the work of the possibility of occurrence of the dangerous event when the notification determination unit determines to notify the possibility of occurrence of the dangerous event. Item 1. The determination device according to item 1. The determination device further
An information management unit that manages execution probability information in which a plurality of combinations of a plurality of works for which an execution order is defined are described, and the probability that a plurality of works included in the combination are executed according to the execution order is described for each combination. ,
When a plurality of works are performed by the worker, among the plurality of combinations described in the execution probability information, the combinations corresponding to the plurality of works and the execution order performed by the worker are described. The determination device according to claim 1, further comprising an implementation probability update unit for updating the probability. The implementation probability update unit
3. Claim 3 for updating the probabilities described in the combinations corresponding to the plurality of works performed by the worker and the combinations performed by the worker when the plurality of work performed by the worker meets the specified criteria. The determination device described. The notification determination unit is
The determination device according to claim 1, wherein it is determined whether or not to notify at least one of the worker and the person involved in the work of the possibility that a dangerous event may occur due to the execution of the start work. The extraction unit
When there are two or more workers, a dangerous event occurs when the candidate work of each worker is performed in parallel among a plurality of combinations obtained by combining the candidate work of each worker. Extract possible combinations as extraction combinations and
The notification determination unit is
Based on the probability that each of the candidate works included in the extraction combination extracted by the extraction unit will be performed next to the start work of each worker, each of the candidate works included in the extraction combination will be performed in parallel. The determination device according to claim 1, wherein it is determined whether or not to notify at least one of each worker and the person concerned with the work of the possibility that a dangerous event may occur due to the implementation. The notification determination unit is
When there are two or more workers, the possibility that a dangerous event may occur due to the start work of each worker being carried out in parallel is given to at least one of each worker and the person concerned with the work. The determination device according to claim 1, which determines whether or not to notify. The determination device further
The determination device according to claim 1, further comprising a control signal invalidation unit that invalidates the control signal required for carrying out the start work when the notification determination unit determines to notify the possibility of occurrence of the dangerous event. The determination device further
It has a work estimation unit that estimates the start work when the start work is unknown.
The extraction unit
The determination device according to claim 1, wherein the extraction candidate work is extracted based on the start work estimated by the work estimation unit. The worker is a worker who works on an elevator.
The work estimation unit
The start work is performed based on the car position information indicating the position of the elevator car, the worker operation signal indicating the operation performed by the worker, and the worker position information indicating the position of the worker. The determination device according to claim 9. The extraction unit
The determination device according to claim 1, wherein candidate work that may cause a dangerous event when the worker's state is in a specific state is extracted as the extraction candidate work. The extraction unit
When there are two or more workers, at least one of the two or more workers among the plurality of combinations obtained by combining the candidate works of each worker is in a specific state. The determination device according to claim 1, wherein a combination in which a dangerous event may occur due to the parallel execution of the candidate work of each worker at a certain time is extracted as the extraction combination. The extraction unit
The determination device according to claim 11, wherein candidate work that may cause a dangerous event if performed when the line-of-sight direction of the worker is a specific direction is extracted as the extraction candidate work. The extraction unit
The determination device according to claim 11, wherein candidate work that may cause a dangerous event when the worker's physiological state is in a specific physiological state is extracted as the extraction candidate work. The extraction unit
The determination device according to claim 11, wherein a candidate work that may cause a dangerous event if the worker's personality is a specific personality is extracted as the extraction candidate work. Of the candidate works that the computer may perform after the work started by the worker, the candidate work that may cause a dangerous event is selected as the extraction candidate work. Extract and
Based on the probability that the extracted candidate work will be performed next to the start work, the computer will determine the possibility of a dangerous event occurring due to the execution of the extraction candidate work. And a determination method for determining whether or not to notify at least one of the persons involved in the work. Extraction of candidate work that is one or more work that may be performed next to the work started by the worker Extraction of candidate work that may cause a dangerous event due to the execution as extraction candidate work Processing and
Based on the probability that the extraction candidate work extracted by the extraction process is executed next to the start work, the worker determines the possibility of a dangerous event occurring due to the execution of the extraction candidate work. And a determination program that causes the computer to execute a notification determination process for determining whether or not to notify at least one of the workers involved in the work.

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