KR102467113B1 - Judging apparatus, judging method, and judging program stored in recording medium - Google Patents

Abstract

The extraction unit 3306 extracts, as an extraction candidate job, a candidate job for which a risk event may occur due to execution, from among candidate jobs that are one or more jobs that may be performed next to the start job initiated by the operator. The notification determination unit 3307 determines the probability of occurrence of a dangerous event, which is the possibility of occurrence of a dangerous event due to the execution of the candidate extraction job, based on the probability that the extraction candidate job extracted by the extraction unit 3306 will be executed next to the starting job. It is determined whether or not to inform at least one of the worker and work related person.

Description

Judging apparatus, judging method, and judging program stored in recording medium

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

In work involving risk, it is required to accurately inform workers of the possibility of occurrence of a dangerous event (event). In addition, a risk event refers to any event that puts a worker at risk. Specific examples of hazardous events are events that injure workers, events that may injure workers, events that harm workers' health, and events that may harm workers' health.

Patent Document 1 discloses a technique for notifying workers engaged in maintenance work in a hoistway of the possibility of occurrence of a dangerous event. More specifically, Patent Literature 1 discloses a method for ensuring the safety of a worker by notifying the worker of a warning by a notification device when a preset alerting condition is established.

Patent Document 1: Japanese Unexamined Patent Publication No. 2016-055950

In the method of Patent Literature 1, the notification device alerts the operator by warning and ensures the safety of the operator.

However, in a work in which the possibility of danger increases in a short time, the time from alerting the operator to the actual occurrence of danger is extremely short.

Therefore, in the method of Patent Literature 1, there is a problem that the worker's avoidance behavior is not timely and there is a possibility that the worker is in danger.

The main object of the present invention is to solve these problems. More specifically, the main object of the present invention is to notify the possibility of occurrence of a dangerous event at an accurate timing so that an operator can take avoidance action.

The judgment device according to the present invention,

An extraction unit for extracting, as an extraction candidate job, a candidate job that may cause a risk event due to execution among candidate jobs that are one or more jobs that may be performed next to the start job initiated by the operator;

Based on the probability that the extraction candidate task extracted by the extraction unit will be performed next to the starting task, the possibility of occurrence of a dangerous event, which is the possibility that a risk event will occur due to the execution of the extraction candidate task, is determined among the worker and the person involved in the work. It has a notification decision unit that determines whether or not to notify at least one of them.

According to the present invention, the possibility of occurrence of a dangerous event can be notified at an accurate timing, and as a result, the operator can take avoidance action.

1 is a diagram showing an example of a hardware configuration of a judgment device according to Embodiment 1;
Fig. 2 is a diagram showing an example of a functional configuration of a judgment device according to Embodiment 1;
3 is a diagram showing an example of execution probability information according to Embodiment 1;
4 is a diagram showing an example of a risk event list according to Embodiment 1;
Fig. 5 is a flowchart showing an operation example of the determination device according to Embodiment 1;
Fig. 6 is a diagram showing an example of a functional configuration of a judgment device according to Embodiment 2;
Fig. 7 is a flowchart showing an operation example of the determination device according to Embodiment 2;
Fig. 8 is a diagram showing an example of functional configuration of the judgment device according to Embodiment 3;
9 is a diagram showing an example of a risk event list according to Embodiment 3;
Fig. 10 is a flowchart showing an operation example of the determination device according to Embodiment 3;
Fig. 11 is a diagram showing an example of a functional configuration of a judgment device according to Embodiment 4;
Fig. 12 is a diagram showing an example of a risk event list according to Embodiment 4;
Fig. 13 is a flowchart showing an operation example of the determination device according to Embodiment 4;
Fig. 14 is a diagram showing an example of functional configuration of the judgment device according to Embodiment 5;
Fig. 15 is a diagram showing an example of a risk event list according to Embodiment 5;
Fig. 16 is a flowchart showing an operation example of the determination device according to Embodiment 5;

EMBODIMENT OF THE INVENTION Hereinafter, embodiment of this invention is described using drawing. In the descriptions and drawings of the following embodiments, the same reference numerals denote the same parts or equivalent parts.

In the following embodiments, description will be given using maintenance work of an elevator as an example of work.

Embodiment 1.

***Description of configuration***

1 shows an example of the hardware configuration of the judgment device 30 according to the present embodiment.

The determination device 30 informs the operator of the possibility of occurrence of a dangerous event based on the operator's working conditions.

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.

In addition, the operation procedure of the judgment device 30 corresponds to the judgment method. In addition, the program for realizing the operation of the judgment device 30 corresponds to the judgment program.

The decision 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 programs stored in the auxiliary storage device 40 are loaded. In addition, the program is read into 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 operator's position. Specific examples of the sensor 20 include a camera, a human detection sensor, a wearable sensor, an air pressure sensor, an acceleration sensor, a Global Positioning System (GPS) receiver, and the like.

The auxiliary storage device 40 includes a car position detection unit 3301, an operator operation signal detection unit 3302, an operator position detection unit 3303, a job estimation unit 3304, an execution probability update unit 3305, and an extraction unit (which will be described later). 3306), the notification determination unit 3307, and the programs realizing the functions of the notification unit 3308 are stored. As a specific example, the auxiliary storage device 40 is a storage such as USB (Universal, Serial, Bus) memory, HDD (Hard, Disk, Drive), SD (Secure, Digital) (registered trademark) card, database, online storage, cloud storage, and the like. it is a medium

The notification device 50 notifies the operator of the possibility of occurrence of a dangerous event. Specific examples of the notification device 50 include a buzzer, an alarm device, a speaker, a portable terminal, a display, and a wearable device.

The notification device 50 informs by stimulating the operator's five senses. Alternatively, the notification device 50 communicates language information such as speech or text as visual information or audio information. In addition, the notification device 50 may notify one or more workers of the same notification content or another notification content. In addition, the notification device 50 notifies an alert indicating danger, inducing movement to a safe location, and the like.

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

The determination device 30 includes a car position detection unit 3301, an operator operation signal detection unit 3302, an operator position detection unit 3303, a job estimation unit 3304, an execution probability update unit 3305, an extraction unit 3306, A notification determination unit 3307, a notification unit 3308, an information management unit 341, and a risk event storage unit 342 are provided.

The car position detection unit 3301 detects the position of the car of the elevator based on the car position information received from the elevator control panel 10 . In the car position information, the position of the car of the elevator is indicated.

The operator operation signal detector 3302 detects operator operation based on the operator operation signal received from the elevator control panel 10 . The operator operation signal indicates an operation performed by the operator.

The worker position detection unit 3303 detects the position of the worker based on the worker position information that the sensor 20 receives from the worker position acquisition device 21 . The worker position acquisition device 21 detects the position of the worker. In the operator position information, the position of the operator detected by the operator position acquisition device 21 is indicated.

The job estimating unit 3304 estimates the work undertaken by the worker, based on the detected car position, operator's operation, and operator's position. As a specific example, the job estimating unit 3304 detects that the worker has started a new job when notifying that the worker has started a new job using a terminal device.

The implementation probability update unit 3305 records the work performed by the operator and updates the implementation probability information based on the record.

In the execution probability information, a plurality of combinations of a plurality of jobs in which an execution order is defined are described. Further, in the execution probability information, for each combination, a probability that a plurality of jobs included in the combination will be executed according to the execution order is indicated. For this reason, a combination of three or more tasks may be described in the execution probability information. In the present embodiment, for simplification of explanation, explanation is made using execution probability information in which a combination of two tasks is described.

The extraction unit 3306 extracts an extraction candidate job from the candidate jobs.

A candidate job is one or more jobs that are likely to be executed next to the start job. An extraction candidate job is a candidate job with a possibility of generating a dangerous event due to execution.

The processing performed by the extraction section 3306 corresponds to the extraction processing.

The notification determination unit 3307 determines whether or not to notify at least either one of the worker and the person concerned with the work, based on the probability of occurrence information, of the possibility of occurrence of a dangerous event. A work associate is a person involved in a work. The worker concerned includes a manager who manages the worker and an assistant who assists the worker.

The possibility of occurrence of a dangerous event is the possibility of occurrence of a dangerous event due to the execution of the extraction candidate job extracted by the extraction unit 3306 .

Further, the notification decision unit 3307 outputs a notification decision signal to the notification unit 3308 when it is determined to notify the possibility of occurrence of a dangerous event. As the notification decision signal, a person to be notified of the possibility of occurrence of a dangerous event (worker or work person concerned, worker and work person concerned) and details of a dangerous event that may occur due to the execution of the extraction candidate job are notified.

The processing performed by the notification decision unit 3307 corresponds to the notification decision processing.

The notification unit 3308 transmits a notification command to the notification device 50 when a notification decision signal is input from the notification decision 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 decision signal.

The information management unit 341 manages execution probability information for each worker.

The risk event storage unit 342 stores a risk event list.

In the dangerous event list, a job and a potentially dangerous event that may occur due to the execution of the job are displayed. Details of the risk event list will be described later.

3 shows an example of execution probability information T10 according to the present embodiment.

The information management unit 341 stores implementation probability information T10 shown in FIG. 3 .

In the execution probability information T10, a plurality of start jobs are shown. Further, in the implementation probability information T10, for each started job, a candidate job that is likely to be implemented next to the started job is shown. Further, in the implementation probability information T10, the probability that the candidate job will be implemented (implementation probability) is indicated.

In the example of FIG. 3 , the work described in the column on the left is the start work. Also, jobs other than the start job are candidate jobs. In Fig. 3, the probability that the candidate job: #001 will be executed after the start job: #001 is 0.10. In addition, the probability that the candidate job: #002 will be executed after the start job: #001 is 0.10. In addition, the probability that the candidate job: #XXX will be executed after the start job: #001 is 0.02.

The execution probability information T10 is preset for each worker based on the past work record of each worker. When there are two or more operators, implementation probability information T10 for the number of people is set.

In addition, the implementation probability information T10 is updated by the implementation probability update unit 3305 based on the job records of each worker.

4 shows an example of the risk event list T21 according to the present embodiment.

The dangerous event storage unit 342 stores the dangerous event list T21 shown in FIG. 4 .

In the risk event list T21, combinations of risk events and jobs appear. That is, when the operator 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 starting job or a candidate job.

A dangerous event list T21 is prepared for each number of workers. Fig. 4(a) shows a dangerous event list T21 when the operator is one. (b) of FIG. 4 shows the dangerous event list T21 when there are two operators.

Dangerous event list T21 in (a) of FIG. 4 indicates that when worker 1 executes job: #001, there is a possibility that dangerous event: 001 will occur.

The dangerous event list T21 in (b) of FIG. 4 indicates that a dangerous event: 011 may occur when worker 1 executes job: #001 and, in parallel, worker 2 executes job: #012.

The dangerous event list T21 is set in advance based on past cases of disasters, cases that almost led to large-scale accidents, and the like.

***Description of action***

Next, an operation example of the determination device 30 according to the present embodiment will be described using the flowchart of FIG. 5 . Below, an example in which the operator is one is described. An example with two or more workers will be separately described.

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

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

Next, the job estimator 3304 estimates the work undertaken by the operator (step S40). Specifically, the job estimating unit 3304 determines the position of the car notified from the car position detecting unit 3301, the operator's operation notified from the operator operation signal detecting unit 3302, and the operator's notified from the worker position detecting unit 3303. Based on the location, the work to be undertaken by the operator is estimated. Specifically, the job estimating unit 3304 relates to the position of the car, the operation of the operator, and the position of the operator at the time of work in all jobs registered in advance in the memory 34 or the auxiliary storage device 40. See setup information. The job estimating unit 3304 performs job estimation by retrieving a job corresponding to the setting information from the notified car position, operator's operation, and operator's position.

Further, the job estimator 3304 estimates the end of the job when detecting an operator's operation indicating that the job has ended.

In addition, the job estimating unit 3304 specifies the number of workers from the position of the worker. As described above, it is assumed here that the number of workers is one.

Then, the job estimating unit 3304 notifies the extraction unit 3306 of the estimation result of the work to be started and the number of workers. In addition, the job estimator 3304 notifies the execution probability updater 3305 of the estimated result of the starting job.

In the present embodiment, the job estimator 3304 estimates the work to be undertaken based on the position of the car, the operator's operation, and the operator's position. However, for example, when the operator notifies the determination device 30 of the work to be undertaken using the terminal device, steps S10 to S40 can be omitted.

Next, the extraction unit 3306 extracts an extraction candidate job (step S50).

Specifically, the extraction unit 3306 reads the execution probability information T10 from the information management unit 341 . Then, the extraction unit 3306 extracts candidate jobs based on the execution probability information T10. More specifically, the extraction unit 3306 extracts, as a candidate job, a job whose probability of being executed next to the start job notified from the job estimating unit 3304 exceeds 0.

Also, the extraction unit 3306 reads the dangerous event list T21 from the dangerous event storage unit 342. Then, the extraction unit 3306 extracts a candidate job included in the risk event list T21 among the extracted candidate jobs as an extraction candidate job.

Then, the extraction unit 3306 notifies the notification determination unit 3307 of the start-up work of the worker, the number of workers, and the extraction candidate job.

Next, the notification decision unit 3307 determines whether or not the start-up operation causes a risk 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 checks whether the operator's initiating work is included in the dangerous event list T21. If the starting job is included in the dangerous event list T21, notification determining unit 3307 determines that the starting job causes a dangerous event.

If it is determined that the starting job causes a dangerous event, the process proceeds to step S80. On the other hand, if it is determined that the starting operation does not cause a risk event, the process proceeds to step S70.

If it is determined in step S60 that the work to be undertaken does not cause a dangerous event, notification determining unit 3307 determines whether or not the execution probability is higher than a threshold value (step S70).

Specifically, the notification determination unit 3307 reads the execution probability information T10 from the information management unit 341 . Then, notification decision unit 3307 extracts an implementation probability corresponding to a combination of a starting job and an extraction candidate job from the implementation probability information T10. In addition, notification determination unit 3307 compares the extracted implementation probability with the set threshold value.

If the implementation probability is higher than the set threshold, the process proceeds to step S80. On the other hand, if the implementation probability is equal to or less than the set threshold, the process proceeds to step S90.

In the case of YES in step S60 or in the case of 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 decision unit 3307 outputs a notification decision signal to the notification unit 3308. The notification unit 3308 transmits a notification command to the notification device 50 according to the notification decision signal from the notification decision unit 3307 .

If it is NO in step S70 or if step S80 is implemented, the execution probability updating unit 3305 detects the end of the job based on the estimation result received from the job estimating unit 3304 (step S90).

If the job has ended, the process proceeds to step S100. On the other hand, if the job has not ended, the process proceeds to step S10.

When it is detected that the work has ended in step S90, the execution probability update unit 3305 determines whether or not the work performed by the worker satisfies the prescribed standard (step S100).

Specifically, the execution probability update unit 3305 determines whether or not the work performed by the operator is suitable for use as learning data. As a specific example, the implementation probability update unit 3305 determines step S100 depending on whether or not the total work time is longer than the set time.

If it is determined that the job satisfies the prescribed criteria, processing proceeds to step S110. On the other hand, if it is not determined that the job satisfies the specified criteria, the process ends.

When it is determined in step S100 that the job satisfies the specified standard, the execution probability update unit 3305 updates the worker's execution probability information T10 (step S110).

As a specific example, the execution probability updating unit 3305 sets the transition of the task as a Markov chain model or a Bayesian network. Further, as a specific example, the implementation probability update unit 3305 takes as an input the transition process of tasks in a time series in an elevator task, performs maximum likelihood estimation of transition matrix components, and performs each task The implementation probability information is updated by outputting the transition probability between

Next, an operation example of the determination device 30 in the case of two or more operators will be described.

When it is determined that there are two or more workers as a result of step S10 to step S40 being performed, in step S50, the extraction unit 3306 extracts an extraction combination. More specifically, the extraction unit 3306 extracts candidate jobs for each operator. Then, the extraction unit 3306 combines the extracted candidate jobs of each worker to obtain a plurality of combinations of candidate jobs. Further, the extraction unit 3306 extracts, as an extraction combination, a combination registered in the dangerous event list T21 according to the number of workers among the combinations of a plurality of candidate jobs.

In addition, the extraction unit 3306 notifies the notification determination unit 3307 of the work undertaken by each worker, the number of workers, and the extraction combination.

Next, in step S60, the notification determination unit 3307 confirms whether or not the combination of work undertaken by each worker is included in the dangerous event list T21 according to the number of workers.

If the combination of work to be undertaken is included in the risky event list T21, the process proceeds to step S80. On the other hand, if the combination of work to be undertaken is not included in the risky event list T21, the process proceeds to step S70.

In step S70, notification determination unit 3307 accumulates probabilities of performing the extraction candidate jobs of each worker included in the extraction combination. The integrated value is a probability that the candidate jobs of each worker are executed in parallel. Then, the notification determination unit 3307 compares the accumulated value with the set threshold value.

If the integrated value is higher than the set threshold, the process proceeds to step S80. If the integrated value is equal to or less than the set threshold, the process proceeds to step S90.

Steps S80 to S110 are the same as those described above, and thus descriptions are omitted.

***Description of the effect of the embodiment***

As described above, in the present embodiment, the possibility of occurrence of a dangerous event is predicted based on the probability of performing a candidate job to be performed next from the currently undertaken job of the worker. And, when the risk event is likely to occur, the notification device is operated. For this reason, according to the present embodiment, it is possible for the operator to take preventive safety measures against possible risks that may arise in the future. Therefore, the operator can take an avoidance action in advance against future danger.

Further, in the present embodiment, it is also determined whether or not the current start operation itself has a possibility of generating a dangerous event. And, in the present embodiment, the notification device is operated when there is a high possibility that the starting operation will generate a dangerous event. For this reason, according to the present embodiment, even if the prediction based on the previously performed extraction candidate job is wrong, it is possible for the operator to take measures to ensure safety at the stage of the starting job.

Embodiment 2.

In this embodiment, an example in which the control signal invalidating unit invalidates the operator operation signal when the notification determining unit 3307 determines to notify the possibility of occurrence of a dangerous event will be described.

In this embodiment, differences from Embodiment 1 are mainly explained.

In addition, matters not described below are the same as in Embodiment 1.

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 equipped with a control signal invalidating unit 3309 and is connected to the elevator control panel 10. In addition, the same number is attached|subjected to the same component part as Embodiment 1, and the description is abbreviate|omitted.

7 is a flowchart showing an operation example of the determination device 30 according to the embodiment. In addition, the same numbers are assigned to the same operations as in Embodiment 1, and descriptions thereof are omitted.

The control signal invalidation unit 3309 transmits a signal for invalidating the operator operation signal to the elevator control panel 10 when the notification determination unit 3307 determines to notify the possibility of occurrence of a dangerous event (step S120).

As a result, the elevator control panel 10 invalidates the operator's operation signal.

In addition, the operator operation signal is a control signal that the operator inputs to the control panel when the operator performs an operation to move the elevator up and down, an operation to open and close a door, and the like.

In addition, invalidation indicates that the operator's operation is invalidated by canceling the operator's operation signal.

As described above, when the possibility of occurrence of a dangerous event is predicted by performing the start-up job or the extraction candidate job, the worker operation signal is invalidated and the start-up job or the extraction candidate job is not performed, thereby improving the safety of the work. can be raised further.

Embodiment 3.

In the present embodiment, an example in which the possibility of occurrence of a dangerous event is determined by a worker performing work without facing a specific line of sight direction will be described.

In this embodiment, differences from Embodiment 2 are mainly explained.

In addition, matters not described below are the same as in the second embodiment.

8 is a functional configuration diagram of the determination device 30 according to the embodiment.

In the present embodiment, the determination device 30 newly includes an operator line-of-sight direction detection unit 3310, and the sensor 20 is connected to the operator line-of-sight direction acquisition device 22.

The operator's line-of-sight direction acquisition device 22 acquires the operator's line-of-sight direction.

In addition, the same number is attached|subjected to the same component as Embodiment 2, and the description is abbreviate|omitted.

9 is an example of a risk event list according to an embodiment.

The dangerous event storage unit 342 stores the dangerous event list T22 shown in FIG. 9 .

In the dangerous event list T22, a combination of a dangerous event, an operator's line of sight direction, and an operation is shown. That is, when the operator's gaze direction is not in the specific direction described in the dangerous event list T22 and the operation 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 specific direction described above include a weight direction, a car down direction, a hoistway top direction, and the like. In addition, the jobs shown in FIG. 9 are either a start job or a candidate job.

A dangerous event list T22 is prepared for each number of workers. Fig. 9(a) shows a dangerous event list T22 when the operator is one. (b) of FIG. 9 shows the dangerous event list T22 when there are two operators.

The dangerous event list T22 in (a) of FIG. 9 indicates that there is a possibility that a dangerous event: 101 may occur if worker 1 performs work: #101 without looking at the top of the hoistway.

In the dangerous event list T22 of FIG. 9 (b), if worker 1 executes work: #111 and in parallel, worker 2 performs work: #112 without looking at the weight, there is a possibility that dangerous event: 111 will occur. indicates

10 is a flowchart showing an operation example of the determination device 30 according to the embodiment. In addition, the same numbers are given to the same operations as in Embodiment 2, and descriptions thereof are omitted.

After step S30 is completed, the operator's line-of-sight direction detection unit 3310 detects the operator's line-of-sight direction based on the line-of-sight direction information (step S130). In the line-of-sight direction information, the line-of-sight direction of the operator acquired by the operator's line-of-sight direction acquisition device 22 is indicated.

Then, the operator's line-of-sight direction detection unit 3310 notifies the extraction unit 3306 of the operator's line-of-sight direction.

After step S40 is completed, extraction unit 3306 extracts an extraction candidate job using the risk event list T22 (step S500).

First, the extraction unit 3306 reads the dangerous event list T22 from the dangerous event storage unit 342. Then, the extraction unit 3306 determines whether the operator's line of sight direction coincides with the line of sight direction shown in the risk event list T22. When the operator's line-of-sight direction coincides with the line-of-sight direction shown in the risk event list T22, the extraction unit 3306 extracts a candidate job similarly to the first embodiment. Further, of the extracted candidate jobs, the extraction unit 3306 extracts, as an extraction candidate job, a candidate job matching a job appearing in the risky event list T22.

When the dangerous event list T22 shown in (a) of Fig. 9 is used, when the operator is not looking at the top of the hoistway, job: #101 is extracted as an extraction candidate job.

Further, when there are two or more workers, the extraction unit 306 extracts, as an extraction combination, a combination of candidate jobs of workers that meet the condition of the risk event list T22 shown in FIG. 9(b). Specifically, when one worker does not look at the weight, the candidate job of the worker who does not see the weight corresponds to job: #112, and the candidate job of the other worker is job: #111, the extraction unit (306) extracts job: #112 and job: #111 as an extraction combination.

Then, the extraction unit 3306 notifies the notification determination unit 3307 of the extraction candidate job or the extraction combination.

Next, the notification decision unit 3307 determines whether or not the starting job causes a dangerous event 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. In addition, the notification determination unit 3307 checks whether the combination of the operator's line of sight direction and the estimated task to be undertaken matches the conditions of the line of sight direction and the task to be undertaken appearing in the risk event list T22. The notification determining unit 3307 determines that an undertaking task causes a risky event when the combination of the line of sight direction and the undertaking task matches the conditions of the line of sight direction and undertaking task appearing in the risky event list T22.

In addition, when there are two or more workers, the notification determination unit 3307 determines whether or not the combination of the two or more workers' line of sight directions and the starting work meets the condition of the dangerous event list T22 shown in FIG. 9(b). Check. The alert determining unit 3307 determines that the undertaking task causes a risky event, when the combination of the two or more workers' line of sight direction and the undertaking task matches the conditions shown in the risky event list T22. Specifically, when one worker is not looking at the weight, when the work undertaken by the worker who has not seen the weight corresponds to work: #112 and the work started by the other worker is work: #111, notification The decision unit 3307 determines that the work undertaken by any one or all workers causes a risky event.

If it is determined that the starting job causes a dangerous event, the process proceeds to step S80. On the other hand, if it is determined that the starting operation does not cause a risk event, the process proceeds to step S70.

Since steps S70 to S120 are the same as those described in Embodiment 1 or Embodiment 2, descriptions thereof are omitted.

Further, in the present embodiment, operations of the extraction unit and notification determination unit using the dangerous event list T22 have been described, but extraction and notification determination may be performed in combination with the dangerous event list in other embodiments.

As described above, in the present embodiment, by adding the determination of the operator's line of sight direction to the determination of notification determination, it is possible to increase the accuracy of prediction of the possibility of occurrence of a dangerous event. For this reason, according to this embodiment, the safety of work can be further improved.

Embodiment 4.

In the present embodiment, an example in which the possibility of occurrence of a dangerous event is determined when the worker performs work when the worker's physiological state is in a specific state will be described.

In this embodiment, differences from Embodiment 3 are mainly explained.

In addition, matters not described below are the same as in Embodiment 3.

11 is a functional configuration diagram of the judgment device 30 according to the present embodiment.

In the present embodiment, the determination device 30 newly includes a worker physiological state detection unit 3311 , and the sensor 20 is connected to the worker physiological state acquisition device 23 .

The worker's physiological state acquisition device 23 detects the worker's physiological state from heart rate, body temperature, respiration, and the like. In addition, a physiological state is a physical or mental state that changes over time. Specific examples of the physiological state include a dull state not concentrating on work, a high-temperature disorder state such as heat stroke, and a tense state in which time is imminent due to an emergency response or the like.

In addition, the same number is attached|subjected to the same component part as Embodiment 3, and the description is abbreviate|omitted.

12 is an example of the risk event list T23 according to the present embodiment.

The dangerous event storage unit 342 stores the dangerous event list T23 shown in FIG. 12 .

In the dangerous event list T23, a combination of the dangerous event, the worker's physiological state, and the work is shown. That is, when the operator 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 job shown in FIG. 12 is either a start job or a candidate job.

A dangerous event list T23 is prepared for each number of workers. Fig. 12(a) shows a dangerous event list T23 when the operator is one. Fig. 12(b) shows a dangerous event list T23 when there are two operators.

Dangerous event list T23 in (a) of FIG. 12 indicates that there is a possibility that a dangerous event: 201 may occur when worker 1 performs work: #201 in a high-temperature disorder state.

In the dangerous event list T23 of FIG. 12 (b), if worker 1 performs work: #211 and worker 2 performs work: #212 in a distracted state, a dangerous event: 211 may occur. indicates

13 is a flowchart showing an operation example of the determination device 30 according to the present embodiment. In addition, the same numbers are given to the same operations as in Embodiment 3, and the description thereof is omitted.

After step S30 is completed, the worker's physiological state detection unit 3311 detects the worker's physiological state based on the worker's physiological state information (step S140). The physiological state of the worker obtained by the physiological state acquisition device 23 of the worker is indicated in the physiological state information of the worker.

Then, the worker's physiological state detection unit 3311 notifies the extraction unit 3306 of the worker's physiological state.

After step S40 is completed, the extraction unit 3306 extracts an extraction candidate job using the risk event list T23 (step S510).

First, the extraction unit 3306 reads the dangerous event list T23 from the dangerous event storage unit 342. Then, the extraction unit 3306 determines whether or not the physiological state of the worker coincides with the physiological state shown in the risk event list T23. When the physiological state of the worker coincides with the physiological state shown in the risk event list T23, the extraction unit 3306 extracts the candidate job similarly to the first embodiment. Also, the extraction unit 3306 extracts, as an extraction candidate job, a candidate job that matches the job appearing in the risk event list T23 from among the extracted candidate jobs.

When the dangerous event list T23 shown in (a) of FIG. 12 is used, job: #201 is extracted as an extraction candidate job when the worker is in a high-temperature injury state.

Further, when there are two or more workers, the extraction unit 3306 extracts, as an extraction combination, a combination of candidate jobs of workers that meet the condition of the risk event list T23 shown in FIG. 12(b). Specifically, when one worker is in a distracted state, the distracted worker's candidate job corresponds to job: #212, and the other worker's candidate job is job: #211, the extraction unit (306) extracts job: #212 and job: #211 as an extraction combination.

Then, the extraction unit 3306 notifies the notification determination unit 3307 of the extraction candidate job or the extraction combination.

Next, the notification decision unit 3307 determines whether or not the starting job causes a dangerous event 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. In addition, the notification determination unit 3307 confirms whether the combination of the worker's physiological state and the estimated job to be undertaken matches the conditions of the physiological state and the job to be undertaken appearing in the risk event list T23. The alert determining unit 3307 determines that the undertaking task causes a dangerous event when the combination of the worker's physiological state and the estimated undertaking task matches the condition of the undertaking task and the physiological state shown in the risky event list T23.

In addition, when there are two or more workers, the notification decision unit 3307 determines whether or not the combination of the physiological states of the two or more workers and the work to be undertaken meets the condition of the dangerous event list T23 shown in FIG. 12(b). Check. The notification determining unit 3307 determines that the undertaking task causes a risky event, when the combination of the physiological state of two or more workers and the undertaking task matches the condition shown in the risky event list T23. Specifically, when one worker is in a distracted state, when the work undertaken by the worker in the distracted state corresponds to work: #212 and the work undertaken by the other worker is work: #211, notification is determined. Unit 3307 determines that an operation undertaken by any or all operators causes a risk event.

If it is determined that the starting job causes a dangerous event, the process proceeds to step S80. On the other hand, if it is determined that the starting operation does not cause a risk event, the process proceeds to step S70.

Steps S70 to S120 are the same as those described in Embodiment 1 to Embodiment 3, so descriptions thereof are omitted.

Further, in the present embodiment, operations of the extraction unit and notification determination unit using the dangerous event list T23 have been described, but extraction and notification determination may be performed in combination with the dangerous event list in other embodiments.

As described above, in the present embodiment, by adding the determination of the worker's physiological state to the determination of the notification decision, it is possible to increase the accuracy of prediction of the possibility of occurrence of a dangerous event. For this reason, according to this embodiment, the safety of work can be further improved.

Embodiment 5.

In the present embodiment, an example in which the possibility of occurrence of a dangerous event is determined when the worker performs work when the character of the worker is a specific character will be described.

In this embodiment, differences from Embodiment 4 are mainly explained.

In addition, matters not described below are the same as in the fourth embodiment.

14 is a functional configuration diagram of the judgment device 30 according to the present embodiment.

In the present embodiment, the judgment device 30 is newly equipped with a worker personality storage unit 343 .

The worker personality storage unit 343 stores the personality of each worker set in advance.

The worker's personality includes the worker's temperament and the worker's ability. 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 worker's reaction speed to stimulation.

In addition, the same number is attached|subjected to the same component part as Embodiment 4, and the description is abbreviate|omitted.

15 is an example of the risk event list T24 according to the present embodiment.

The dangerous event storage unit 342 stores the dangerous event list T24 shown in FIG. 15 .

In the dangerous event list T24, a combination of a dangerous event, a worker's personality, and a task is displayed. In other words, when a worker having the characteristics 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 jobs shown in FIG. 15 are either a start job or a candidate job.

A dangerous event list T24 is prepared for each number of workers. Fig. 15(a) shows a dangerous event list T24 when there is only one operator. (b) of FIG. 15 shows the dangerous event list T24 when there are two workers.

The dangerous event list T24 in (a) of FIG. 15 indicates that there is a possibility that a dangerous event: 301 may occur when the impatient worker 1 executes the task: #301.

In the dangerous event list T24 of FIG. 15 (b), when worker 2, whose reaction speed is significantly slower than the average value, performs task #312 and worker 1 performs task #311 in parallel, dangerous event: 311 indicates that this is likely to occur.

16 is a flowchart showing an operation example of the determination device 30 according to the present embodiment. In addition, the same numbers are assigned to the same operations as in the fourth embodiment, and the description thereof is omitted.

After step S40 is completed, 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 an extraction candidate job using the risk event list T24 (step S520).

First, the extraction unit 3306 reads the dangerous event list T24 from the dangerous event storage unit 342. Then, the extraction unit 3306 determines whether or not the personality of the operator matches the personality shown in the risk event list T24. When the personality of the worker matches the personality appearing in the risk event list T24, the extraction unit 3306 extracts the candidate job similarly to the first embodiment. Also, the extraction unit 3306 extracts, as an extraction candidate job, a candidate job matching the job appearing in the risky event list T24 from among the extracted candidate jobs.

When the dangerous event list T24 shown in (a) of Fig. 15 is used, when the worker's personality is impatient, job: #301 is extracted as an extraction candidate job.

Further, when there are two or more workers, the extraction unit 3306 extracts, as an extraction combination, a combination of candidate jobs of workers that meet the conditions of the risk event list T24 shown in FIG. 15(b). Specifically, when one worker's reaction speed is significantly slower than the average, the candidate job of the slow worker corresponds to job: #312, and the candidate job of the other worker is job: #311. When , the extraction unit 306 extracts job:#312 and job:#311 as an extraction combination.

Then, the extraction unit 3306 notifies the notification determination unit 3307 of the extraction candidate job or the extraction combination.

Next, the notification decision unit 3307 determines whether or not the starting job causes a dangerous event 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 checks whether the combination of the worker's personality and the estimated job to start matches the conditions of the personality and the job to start appearing in the risk event list T24. The alert determining unit 3307 determines that the undertaking task causes a risky event, when the combination of the worker's personality and the estimated undertaking task matches the conditions of the undertaking task and the personality appearing in the dangerous event list T24.

Further, when there are two or more workers, the notification decision unit 3307 checks whether or not the combination of the characteristics of the two or more workers and the work to be started meets the condition of the dangerous event list T24 shown in FIG. 15(b). do. The alert determining unit 3307 determines that the starting job causes a dangerous event, when the combination of the personalities of the two or more workers and the starting job matches the conditions shown in the dangerous event list T24. Specifically, when one worker's reaction speed is considerably slower than the average value, the work undertaken by the slow worker corresponds to work: #312, and the work initiated by the other worker: #311 days. At this time, the notification determination unit 3307 determines that an operation undertaken by any one operator or all operators causes a dangerous event.

If it is determined that the starting job causes a dangerous event, the process proceeds to step S80. On the other hand, if it is determined that the starting operation does not cause a risk event, the process proceeds to step S70.

Steps S70 to S120 are the same as those described in Embodiment 1 to Embodiment 4, so descriptions thereof are omitted.

Further, in the present embodiment, operations of the extraction unit and notification determination unit using the dangerous event list T24 have been described, but extraction and notification determination may be performed in combination with the dangerous event list in other embodiments.

As described above, in the present embodiment, by adding the determination of the character of the operator to the determination of the notification determination, it is possible to increase the accuracy of prediction of the possibility of occurrence of a dangerous event. For this reason, according to this embodiment, the safety of work can be further improved.

As mentioned above, although embodiment of this invention was described, it does not matter even if one of these embodiment is implemented partially.

Alternatively, among these embodiments, two or more may be partially combined and implemented.

In addition, this invention is not limited to these embodiment, Various changes are possible as needed.

***Description of Hardware Configuration***

Finally, a supplementary description of the hardware configuration of the judgment device 30 is 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 RAM (Random Access Memory).

The control panel signal interface 31, sensor interface 32, and notification device interface 35 shown in FIG. 3 are electronic circuits that perform data communication processing, respectively.

The control panel signal interface 31, sensor interface 32, and notification device interface 35 are, for example, communication chips or NICs (Network, Interface, and Card), respectively.

In addition, an OS (Operating System) is also stored in the auxiliary storage device 40 .

And, at least part of the OS is executed by the processor 33.

The processor 33 executes at least a part of the OS, and includes a car position detection unit 3301, a worker manipulation signal detection unit 3302, a worker position detection unit 3303, a job estimation unit 3304, an execution probability update unit 3305, Programs for realizing the functions of the extraction unit 3306, notification determination unit 3307, and notification unit 3308 are executed.

When the processor 33 executes the OS, task management, memory management, file management, communication control, and the like are performed.

In addition, a car position detection unit 3301, an operator operation signal detection unit 3302, an operator position detection unit 3303, a job estimation unit 3304, an execution probability update unit 3305, an extraction unit 3306, and a notification determination unit 3307 ), and at least one of information, data, signal values, and variable values representing the result of the processing of the notification unit 3308, the memory 34, the auxiliary storage device 40, the register and cache memory in the processor 33 remembered in at least one of them.

In addition, a car position detection unit 3301, an operator operation signal detection unit 3302, an operator position detection unit 3303, a job estimation unit 3304, an execution probability update unit 3305, an extraction unit 3306, and a notification determination unit 3307 ), and programs for realizing the functions of the notification unit 3308 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 car position detection unit 3301, the operator manipulation signal detection unit 3302, the operator position detection unit 3303, the job estimation unit 3304, the execution probability update unit 3305, the extraction unit 3306, and the notification determination unit 3307 ), and a portable recording medium storing a program for realizing the function of the notification unit 3308 may be distributed.

In addition, a car position detection unit 3301, an operator operation signal detection unit 3302, an operator position detection unit 3303, a job estimation unit 3304, an execution probability update unit 3305, an extraction unit 3306, and a notification determination unit 3307 ), and “section” in the notification unit 3308 may be read interchangeably with “circuit” or “process” or “sequence” or “process”.

Also, the judgment 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 operator operation signal detection unit 3302, the operator position detection unit 3303, the job estimation unit 3304, the execution probability update unit 3305, the extraction unit 3306, and the notification determination unit 3307 and notification unit 3308 are each realized as a part of the processing circuit.

In addition, in this specification, the superordinate concept of a processor and a processing circuit is called "processing circuit tree".

That is, a processor and a processing circuit are specific examples of a "processing circuit tree", respectively.

10 Elevator control panel, 20 sensor, 21 operator position acquisition device, 22 operator gaze direction acquisition device, 23 operator 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 risk event storage unit, 343 worker personality storage unit, 3301 car position detection unit, 3302 operator manipulation signal detection unit, 3303 operator position detection unit, 3304 task estimation unit, 3305 execution probability 3306 Extraction unit, 3307 Notification determination unit, 3308 Notification unit, 3309 Control signal invalidation unit, 3310 Operator gaze direction detection unit, 3311 Operator physiological state detection unit.

Claims (17)

An extraction unit for extracting, as an extraction candidate job, a candidate job that may cause a risk event due to execution among candidate jobs that are one or more jobs that may be performed next to the start job initiated by the operator;
Based on the probability that the extraction candidate task extracted by the extraction unit will be performed next to the starting task, the possibility of occurrence of a dangerous event, which is the possibility that a risk event will occur due to the execution of the extraction candidate task, is determined among the worker and the person involved in the work. A judgment device having a notification decision unit that determines whether or not to notify at least one of them. According to claim 1,
The determination device,
and a notification unit for notifying at least one of the worker and the work related person 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. According to claim 1,
The determination device,
an information management unit for managing execution probability information in which a plurality of combinations of a plurality of tasks in which an execution order is defined are described, and a probability that a plurality of tasks included in the combination will be executed according to the execution order is described for each combination;
When a plurality of jobs are performed by the worker, among the plurality of combinations described in the execution probability information, a probability described in a combination corresponding to the plurality of jobs performed by the worker and the execution order is updated. A decision device further having a probability update unit. According to claim 3,
The implementation probability update unit,
and updating a probability described in a combination corresponding to the plurality of operations performed by the operator and the order of execution, when the plurality of operations performed by the operator satisfies a prescribed criterion. According to claim 1,
The notification decision unit,
A determination device for determining whether or not to notify at least either one of the worker and the person concerned with the work that a risk event may occur as a result of the execution of the starting work. According to claim 1,
The extraction part,
In the case where there are two or more workers, among a plurality of combinations obtained by combining the candidate jobs of each worker, a combination in which a risk event may occur when the candidate jobs of each worker are executed in parallel is extracted as a combination. extract,
The notification decision unit,
Each of the candidate jobs included in the extraction combination is executed in parallel based on a probability that each of the candidate jobs included in the extraction combination extracted by the extraction unit will be performed next to the start job of each worker. A decision device for determining whether or not to inform at least one of each worker and the work concerned of the possibility of occurrence of a dangerous event by being. According to claim 1,
The notification decision unit,
and determining whether or not to inform at least either one of each worker and the person concerned with the work, when there are two or more workers, a possibility that a dangerous event will occur as a result of the starting work of each worker being performed in parallel. According to claim 1,
The determination device,
and a control signal invalidation unit for invalidating a control signal necessary for the execution of the starting task when the notification decision unit determines to notify the possibility of occurrence of the dangerous event. According to claim 1,
The determination device,
Further comprising a job estimating unit for estimating the started job when the started job is unknown;
The extraction part,
and a determination device for extracting the extraction candidate job based on the undertaking job estimated by the job estimating unit. According to claim 9,
The worker is a worker who works on the elevator,
The work estimation unit,
The determining device for estimating the work to be undertaken based on car position information indicating the position of the elevator car, an operator operation signal indicating the operation performed by the operator, and operator position information indicating the position of the operator. According to claim 1,
The extraction part,
A determination device for extracting, as the extraction candidate job, a candidate job having a possibility of causing a dangerous event if executed when the worker's state is in a specific state. According to claim 1,
The extraction part,
When there are two or more workers, among a plurality of combinations obtained by combining the candidate jobs of each worker, when at least one of the two or more workers is in a specific state, the candidate of each worker A judgment device that extracts, as an extraction combination, a combination in which a dangerous event may occur due to operations being performed in parallel. According to claim 11,
The extraction part,
A determination device for extracting, as the extraction candidate job, a candidate job having a possibility of causing a risk event if the operator's gaze direction is performed in a specific direction. According to claim 11,
The extraction part,
and a determination device for extracting, as the extraction candidate job, a candidate job having a possibility of causing a risk event if performed when the physiological state of the worker is in a specific physiological state. According to claim 11,
The extraction part,
A determination device for extracting, as the extraction candidate job, a candidate job having a possibility of causing a dangerous event if the worker's personality is performed when the character is a specific character. The computer extracts, as an extraction candidate job, a candidate job that may cause a risk event due to execution, among candidate jobs that are one or more jobs that may be performed next to the start job initiated by the operator,
Based on the probability that the extracted candidate extraction job will be performed next to the starting job, the computer determines the possibility of occurrence of a risk event, which is the possibility of occurrence of a risk event due to the execution of the extraction candidate job, by at least one of the worker and the person involved in the job. The decision method for deciding whether to notify either party. Extraction processing of extracting, as an extraction candidate job, a candidate job that may cause a risk event due to execution, among candidate jobs that are one or more jobs that may be performed next to the start job initiated by the operator;
Based on the probability that the extraction candidate job extracted by the extraction process will be performed next to the undertaking job, the possibility of occurrence of a dangerous event, which is the possibility of occurrence of a dangerous event due to the execution of the extraction candidate job, is determined among the worker and the person concerned. A determination program stored in a recording medium for causing a computer to execute an alert determination process for determining whether or not to notify at least one of the parties.

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