JP2018180573A - Safety management system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable secure and highly reliable accident prediction and prevention.SOLUTION: Using a work place management screen 38 and a dangerous spot registration screen 40, a danger level corresponding to a type of work and work place for each work is registered. State information 52 and accident information 54 are acquired from an operator side terminal 16 owned by a worker 20. For example, by using the information acquired from the worker side terminal 16 and weather information acquired through a wide area network 12, a heat risk degree of each area is determined. The danger of the operator is predicted from preset state judgment reference data 58 and risk estimation management data 62. Then, a work place management screen 38 indicating the risk level is displayed on a site management terminal 18. The safety management staff 24 predicts a risk from the result and prevents an accident.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a safety management system for safety management of workers and the like who are engaged in various tasks.

   For example, when an accident occurs at a construction site, a person or a joint worker requests a rescue. However, if the co-worker has not witnessed the accident, the accident detection may be delayed or the situation may become insufficient. Therefore, a technology for automatically detecting the occurrence of an accident at a construction site has been introduced (Patent Document 1). In addition, for trucks, buses and taxi drivers, building security guards and managers, small store clerks, and other types of workers who often act alone, prompt response to an accident may be delayed. is there. Therefore, a system has been introduced in which a state where a person falls down for early relief is detected and automatically notified (Patent Document 2). In addition, a technology for acquiring detection signals by various sensors has also been introduced for watching over elderly people living alone (Patent Document 3).

Unexamined-Japanese-Patent No. 2012-203677 JP, 2009-163573, A JP, 2014-89494, A

The known prior art has the following problems to be solved.
For example, when working in a high noise area or a high temperature and humidity atmosphere, the safety of the worker can not be assuredly assured by the well-known surveillance system in an operation that travels violently, an operation at a high place, and the like. For the safety management of workers involved in various operations, it is desirable to construct a more complete safety management system in order to prevent the occurrence of an accident. An object of the present invention is to provide a safety management system that enables more reliable and reliable accident prediction and prevention.

  The following configurations are means for solving the above-mentioned problems.

<Configuration 1>
A storage device for storing state information acquired from a worker side terminal owned by a worker and safety management data for each worker including accident information;
Data collection means for collecting status information and accident information from the worker side terminal and acquiring environmental information including weather information through a wide area network;
The heat index (WBGT) for each area included in the weather report acquired by the above data collection means is corrected using the measurement value acquired by the temperature and humidity sensor of the worker side terminal Per-worker risk determination means for generating and displaying risk information indicating the heatstroke risk specific to each worker;
A reporting means for predicting the danger of the worker based on the status judgment reference data and the risk degree prediction management data set in advance and sending a report to the worker terminal possessed by the worker or the site management terminal possessed by the safety manager Safety management system characterized by having.

<Configuration 2>
The notification means predicts the load of the worker from the impact level applied to the worker acquired by the acceleration sensor of the worker side terminal and predicts the load of the worker and the worker terminal possessed by the worker or the site management terminal possessed by the safety manager The security management system according to Configuration 1, wherein the security management system issues a notification.

<Configuration 3>
The notification means determines the physical position of the worker from the change in the direction in which the gravitational acceleration is applied, obtained by the acceleration sensor of the worker side terminal, and the worker terminal possessed by the worker or the site possessed by the safety manager The safety management system according to Configuration 2, wherein a report is issued to the management terminal.

<Configuration 4>
The above-mentioned reporting means seeks the degree of risk due to the fatigue degree of the worker from the consumed calories calculated from the pulse of the worker acquired by the pulse meter of the worker side terminal, and the worker terminal possessed by the worker or the person in charge of safety management The security management system according to Configuration 1 or 2, characterized in that a notification is issued to a site management terminal owned by.

<Configuration 5>
The notification means obtains the degree of risk due to the fatigue degree of the worker from the noise level around the worker acquired by the microphone of the worker side terminal, and carries the worker terminal possessed by the worker or the person in charge of safety management The safety management system according to Configuration 1 or 2, characterized in that a notification is issued to a site management terminal.

<Configuration 6>
The above notification means detects the movement amount and the break time of the worker by the position sensor of the worker side terminal, finds the degree of risk due to overwork, and the worker terminal or safety management person in charge of the worker The safety management system according to Configuration 1 or 2, characterized in that a notification is issued to a site management terminal owned.

<Configuration 7>
There is a danger level determination unit for each area that generates and displays a work place management screen indicating the degree of danger for each area using the information acquired by the data collection unit,
The above-mentioned notification means detects the position of the worker by the position sensor of the worker side terminal, and when the worker enters the area where the degree of danger is high, the worker terminal possessed by the worker or the person in charge of safety management The security management system according to Configuration 1 or 2, characterized in that a notification is issued to a site management terminal owned by.

<Configuration 8>
The safety management system according to Configuration 1 or 2, wherein in the work place management screen, all areas for specifying the work place for determining the position of the worker are set as convex polygons.

  The risk of the worker is predicted from the condition judgment reference data 58 and the risk degree prediction management data 62 which are set in advance, and the site management terminal 18 possessed by the safety manager 24 is notified. It can be prevented. Even in the event of an accident, the site management database 36 collected by the data collection means 28 and the safety management data 42 for each worker can accurately estimate the cause of the accident and the degree of impact on the worker, etc. And enable accident recovery measures.

It is a functional block which shows the safety management system of this invention. FIG. 18 is an explanatory view showing an example of a work place management screen 38. It is an explanatory view showing an example of environmental information 50, state information 52, and accident information. FIG. 6 is an explanatory view showing an example of a dangerous place registration screen 40; FIG. 6 is an explanatory view showing an example of work place registration data 56; FIG. 6 is an explanatory view showing an example of state determination reference data 58 for determining the state of the worker 20. It is explanatory drawing which shows the content of the data which show the danger degree of the working area of worker 20, work environment, and the state of worker 20. FIG. It is explanatory drawing which shows the parameter for predicting the risk degree regarding heat stroke. It is an explanatory view showing an example of field setting.

  Hereinafter, embodiments of the present invention will be described in detail for each example.

FIG. 1 is a functional block showing a safety management system of the present invention.
The management terminal device 14, the worker terminal 16 and the site management terminal 18 are connected to the network 12. The management terminal device 14 is installed in a management center, and is connected to worker side terminals 16 possessed by workers 20 of many work sites to be managed to collect data. Although only one worker side terminal 16 is illustrated in this drawing, it is possible to connect with a large number of worker side terminals 16 through the network 12. The worker side terminal 16 has a function of acquiring data from the position sensor 43, the acceleration sensor 44, the temperature / humidity sensor 46, the pulse meter 48, the microphone 49, etc. worn by the worker 20.

  The management terminal device 14 has a function of acquiring data from the worker side terminal 16, analyzing it, and performing necessary determination. In order to execute this, the management terminal device 14 comprises an arithmetic processing unit 26 and a storage unit 34. The arithmetic processing unit 26 includes a data collection unit 28, a per-worker risk determination unit 29, a per-area risk determination unit 30, a notification unit 32, and an initial value setting unit 45. The storage unit 34 stores a site management database 36, a work place management screen 38, a dangerous spot registration screen 40, safety management data 42 for each worker, state determination reference data 58, and risk degree prediction management data 62.

  Various information based on the data collected by the management terminal device 14 is displayed on the site management terminal 18 possessed by the safety manager 24. The safety manager 24 can manage the safety of the worker 20. For example, when the information for notifying the danger is obtained, the security manager 24 can notify the site manager 22 to take appropriate measures. .

FIG. 2 is an explanatory view showing an example of the work place management screen 38. As shown in FIG.
Map data is displayed on this screen through the wide area network. The work place of the worker is displayed on this map data. Furthermore, when the worker moves, the moving path from the start of the work to the end of the work can also be displayed. This screen is created for each worker and for each type of work and registered in the site management database 36.

FIG. 3 is an explanatory view showing an example of the dangerous place registration screen 40. As shown in FIG.
This figure is displayed together with, for example, the work place management screen 38. The environmental information 50 is generated and displayed by the regional risk determination unit 30 from the temperature and humidity sensor 46 of the worker side terminal 16 and the weather information. If it is determined from the weather information and the work environment that the risk of heatstroke is high, a report by the reporting means 32 is made.

  The state information 52 is generated from data output from the temperature and humidity sensor 46 of the worker side terminal 16. By monitoring this data and comparing it to certain criteria, one can determine the risk of heat stroke for the worker. This process is executed by the hazard level determination unit 29 for each worker. Further, based on the information acquired from the worker terminal 16, it can be determined whether the worker 20 is walking or falling. When the status information 52 is determined to be abnormal, the reporting means 32 sends a report.

  Also, for example, the position sensor 43 detects the position of the object person, monitors the flow line and the movement distance, and if there is an approach or approach to the danger area, the operator side terminal carried by the operator by the reporting means 32 You can also warn through 16.

FIG. 4 is an explanatory view showing an example of the dangerous place registration screen 40, and FIG. 5 is an explanatory view showing an example of the work place registration data 56. As shown in FIG.
As shown in this figure, the work area to be managed is divided into areas of a certain size. Then, the degree of danger is determined for each area, and coloring is performed according to the degree of danger. By displaying the result on the site management terminal 18 possessed by the safety manager 24, it is possible to call attention.

  The danger level for each area is, for example, a level where there is an environment, such as a place where wind is difficult to pass or heat stroke, a place where things are likely to fly by building wind, places where traffic congestion is heavy and air tends to be dirty It can be included. That is, in this embodiment, the description has focused on the degree of risk for heat stroke, but it is preferable to set the other degrees of risk as well to ensure the safety of the operation.

  The type of work for each worker and the degree of risk corresponding to the work place are registered in the site management database 36 by the work place management screen 38 and the dangerous place registration screen 40 described above. The state information 52 and the accident information 54 acquired from the worker side terminal 16 owned by the worker are registered in the safety management data 42 for each worker.

  The data collection means 28 shown in FIG. 1 has a function of collecting state information 52 and accident information 54 from the worker side terminal 16 and acquiring environmental information including weather information through the wide area network 12. The per-area risk determination unit 30 determines the per-area risk using the information acquired by the data collection unit 28, and generates a work place management screen 38 indicating the corresponding risk.

FIG. 6 is an explanatory view showing an example of the condition determination reference data 58 for determining the condition of the worker 20 from the data acquired from the worker side terminal 16.
This data is data in which a threshold value or the like for determining the walking distance and the degree of fatigue of the worker 20 is set from the data acquired by the acceleration sensor 44 and the pulsimeter 48 of the worker side terminal 16. These data can automatically determine whether the worker 20 has received a certain impact or more, whether he has walked a distance that may cause overwork, and whether an abnormal condition occurs and falls. Anything is acceptable, and its value and form are free.

FIG. 7 is an explanatory view showing the contents of data indicating the work area of the worker 20, the work environment, and the degree of danger of the state of the worker 20. As shown in FIG.
This data is created for each worker. Then, the acceleration, temperature, humidity, state, pulse and the like acquired from the worker side terminal 16 are included in the per-worker safety management data 60. The heat index is calculated from the weather information and the data of the temperature / humidity sensor 46 of the worker side terminal 16 to calculate the degree of danger. The pulsimeter 48 can calculate the consumed calories using the formula of the device.

  By setting the determination criteria as shown in FIG. 6, the area-by-area risk determination means 30 detects the movement amount and the break time of the worker by the position sensor 43 of the worker side terminal 16, resulting in overwork. A work place management screen 38 showing the degree of risk can be generated and displayed.

  Further, the reporting means 32 obtains the degree of risk due to the degree of fatigue of the worker from the consumed calories calculated from the pulse of the worker acquired by the pulse meter 48 of the terminal 16 of the worker, and is possessed by the safety manager. A notification can be issued to the site management terminal.

  Furthermore, the notification means 32 obtains the degree of risk due to the fatigue degree of the worker from the noise level around the worker acquired by the microphone 49 of the worker side terminal 16, and manages the site owned by the safety manager. It can issue a report to the terminal.

  Further, the reporting means 32 obtains the degree of risk caused by the load of the worker from the impact level applied to the worker acquired by the acceleration sensor 44 of the worker side terminal 16, and the site management terminal possessed by the safety manager. You can issue a call to

  The acceleration sensor can detect the direction of gravitational acceleration. Therefore, the operator wears the acceleration sensor and performs an operation for detecting the direction of the gravitational acceleration in a normal posture. The direction is stored in the storage device as an initial value. Thereafter, when the operator falls over, a difference between the direction of the gravitational acceleration detected by the acceleration sensor and the initial value occurs. Based on the degree of this difference, it can be determined what kind of posture the worker is. In order to enable this process, the worker terminal 16 is securely fixed to the belt or the like of the worker 20 so as not to shake. Then, when the start button of the worker terminal 16 is operated to start the safety monitoring of the worker, the process of automatically detecting the direction of the gravitational acceleration by the acceleration sensor and setting it as the initial value is the initial value setting means 45 It is good to let

  The state determination reference data 58 and the risk degree prediction management data 62 may be set to appropriate values in consideration of the type of work of the worker and the nature of the work place. Then, the notification means 32 predicts the danger of the worker from the contents of the collected per-worker safety management data 42. The result is displayed on the site management terminal 18 possessed by the safety manager 24, and a notification according to the risk is issued.

  This can prevent an accident in advance. Furthermore, if an accident occurs, the site management database 36 and the per-worker safety management data 42 collected by the data collection means 28 are referred to. Then, the result is displayed on the site management terminal 18 or the like. Therefore, the safety manager 24 or the notification means 32 can accurately estimate the cause of the accident, the degree of impact on the worker, and the like. Of course, quick relief and accident recovery measures will also be possible.

FIG. 8 is an explanatory view showing parameters for predicting the degree of risk related to heat stroke.
The calculation is performed using the data acquired by the temperature and humidity sensor 46 of the worker side terminal 16 and the position coordinates of the work place acquired by the position sensor 43 of the worker side terminal 16. The environment including the working place of the worker 20 is predicted by calculation including data such as predicted temperature and predicted humidity provided by the meteorological association. For example, if it is predicted that the risk of heatstroke occurrence will be high at this location, a notification is issued to alert the site management terminal 18 of the safety manager 24.

  For example, the work area management screen indicating the degree of danger of the surrounding environment of the worker calculated by the weather report acquired by the data collection means 28 and the temperature / humidity sensor 46 of the worker side terminal 16 38 can be generated and displayed on the site management terminal 18. In this way, it is possible to promote measures (heatstroke prevention, etc.) in accordance with changes in weather conditions.

  The heat index (WBGT (Wet bulb black bulb temperature): Wet Bulb Globe Temperature) is a heat environment such as solar radiation, which has a large influence on the heat balance of the human body, in order to prevent heat stroke. It is an indicator that incorporates the temperature. Regional WBGTs will be released by the Meteorological Association. By correcting the published WBGT using the measurement value of the temperature and humidity meter possessed by the worker 20, it is possible to calculate the accurate WBGT of the work place. Thus, if the risk of heatstroke is determined and the reporting means 32 reports to the operator 20 or the safety manager 24, heatstroke can be prevented.

  In addition, heatstroke is almost recovered if you notice and treat early, but it will be life-threatening if the treatment is delayed. Since the degree of heatstroke risk based on the thermal environment specific to each worker is determined, the notification is highly reliable and the heatstroke prevention effect is high. Furthermore, since the acceleration sensor 44 promptly detects that the worker has fallen, and is notified to the on-site manager, the position sensor 43 can grasp the position of the worker, leading to prompt rescue of the worker.

The reporting means 32 executes the reporting process by transmitting the work place management screen 38 and the dangerous place registration screen 40 displayed on the display device to the worker side terminal 16 and the site management terminal 18. Furthermore, it is preferable to make a notification so that the alarm can be recognized even if the worker 20 or the site manager 22 does not look at the display device, by using an alarm sound, a pipelining, an alarm mail or the like.

  In addition, when the worker moves the work place, if there is a dangerous area which is not suitable for the work, the worker is notified to prevent the movement to the area. For this purpose, the location of the worker is divided into a plurality of areas to monitor the position and movement of the worker. These areas may be specified in advance as arbitrary polygons on the map. That is, it is preferable to display a map, draw a polygon with a mouse or the like, and set an area identification symbol and a degree of danger in attribute data of the polygon.

  In addition to determining and displaying the heatstroke risk level for each area in advance, the above-mentioned area level risk determination means 30 may also notify the worker 20 and the site manager 22 of the risk level due to causes other than the air temperature. preferable. For example, locations where there are dangerous facilities and equipment where accidents are likely to occur, locations where accidents have occurred, locations where explosives and dangerous materials are stored from the past experience, etc. It registers in the danger point registration screen 40 as a high place. Then, when it is detected that the worker moves toward the place, the reporting unit 32 may report the danger by an alarm sound, an alarm mail, or the like. Furthermore, it is preferable to issue a notification so as to prevent entry even at a place where an accident has just occurred and which may be involved in the accident.

  As described in the above embodiments, the system of the present invention notifies the alarm to determine whether the worker is within the preset area or to prevent the worker from moving to the high risk area. Do. For this determination, position coordinates output from the position sensor 43 of the worker terminal 16 and map data of the work place are used. If the work place is a city area, it is possible to divide the area by the house display. The position of the worker can be determined as the 10th address or the 15th address.

FIG. 9 is an explanatory view showing an example of area setting.
If the work place is a vast field or forest land, it is necessary to set a virtual boundary. At this time, as shown in the example of the triangle or the example of FIG. Here, for example, as shown in FIG. 7A, when the position coordinate of the worker is (x0, y0), it is determined whether the position coordinate is a point inside or outside the polygon. For example, points of intersection (x1, y0) and (x2, y0) of the sides of the polygon with the straight line of Y = y0 and points of intersection (y1, x0) and (y2) of the sides of the polygon with the straight line of X = x0. , X0). Then, when (x1 <X <x2) and (y1 <Y <y2), it is determined that the position coordinates (x0, y0) are inside the polygon.

  When such a determination is made, if the polygon defining the region is a concave polygon as shown in FIG. 9B, four or more intersection points of the side of the polygon and the straight line of X = x0 cause arithmetic processing Becomes complicated. Therefore, it is preferable to divide all the regions by convex polygons. When the actual area is a concave polygon, the area inside / outside judgment can be made by dividing the area into a plurality of convex polygons.

12 Network 14 Management terminal device 16 Worker side terminal 18 Field management terminal 20 Worker 22 Field manager 24 Safety manager 26 Operation processing device 28 Data collection means 29 Work risk degree judgment means 30 Area danger degree judgment means 32 Notification means 34 Storage device 36 Site management database 38 Work place management screen 40 Hazard location registration screen 42 Safety management data for each worker 43 Position sensor 44 Acceleration sensor 45 Initial value setting means 46 Temperature and humidity sensor 48 Pulse meter 49 Microphone 50 Environmental information 52 Condition information 54 Accident information 56 Work place registration data 58 Condition judgment reference data 60 Worker safety management data 62 Risk degree prediction management data

Claims (8)

A storage device for storing state information acquired from a worker side terminal owned by a worker and safety management data for each worker including accident information;
Data collection means for collecting status information and accident information from the worker side terminal and acquiring environmental information including weather information through a wide area network;
The heat index (WBGT) for each area included in the weather report acquired by the above data collection means is corrected using the measurement value acquired by the temperature and humidity sensor of the worker side terminal Per-worker risk determination means for generating and displaying risk information indicating the heatstroke risk specific to each worker;
A reporting means for predicting the danger of the worker based on the status judgment reference data and the risk degree prediction management data set in advance and sending a report to the worker terminal possessed by the worker or the site management terminal possessed by the safety manager Safety management system characterized by having.   The notification means predicts the load of the worker from the impact level applied to the worker acquired by the acceleration sensor of the worker side terminal and predicts the load of the worker and the worker terminal possessed by the worker or the site management terminal possessed by the safety manager The security management system according to claim 1, wherein the security management system issues a notification.   The notification means determines the physical position of the worker from the change in the direction in which the gravitational acceleration is applied, obtained by the acceleration sensor of the worker side terminal, and the worker terminal possessed by the worker or the site possessed by the safety manager The security management system according to claim 2, wherein a notification is issued to the management terminal.   The above-mentioned reporting means seeks the degree of risk due to the fatigue degree of the worker from the consumed calories calculated from the pulse of the worker acquired by the pulse meter of the worker side terminal, and the worker terminal possessed by the worker or the person in charge of safety management The security management system according to claim 1 or 2, wherein a notification is issued to a site management terminal owned by the server.   The notification means obtains the degree of risk due to the fatigue degree of the worker from the noise level around the worker acquired by the microphone of the worker side terminal, and carries the worker terminal possessed by the worker or the person in charge of safety management The security management system according to claim 1 or 2, wherein a notification is issued to the site management terminal.   The above notification means detects the movement amount and the break time of the worker by the position sensor of the worker side terminal, finds the degree of risk due to overwork, and the worker terminal or safety management person in charge of the worker The security management system according to claim 1 or 2, wherein a notification is issued to a site management terminal owned. There is a danger level determination unit for each area that generates and displays a work place management screen indicating the degree of danger for each area using the information acquired by the data collection unit,
The above-mentioned notification means detects the position of the worker by the position sensor of the worker side terminal, and when the worker enters the area where the degree of danger is high, the worker terminal possessed by the worker or the person in charge of safety management The security management system according to claim 1 or 2, wherein a notification is issued to a site management terminal owned by the server. The safety management system according to claim 1 or 2, wherein in the work place management screen, all areas for specifying the work place for determining the position of the worker are set as convex polygons.

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