JP7753030B2 - Safety Management System - Google Patents

Description

The present invention relates to a safety management system.

Technology related to safety management systems that use information obtained from subjects has been publicly known. For example, see Patent Document 1.

Patent Document 1 describes a safety management system in which a device is worn by workers working at a construction site, and the device acquires biometric information such as brain waves, breathing, and heart rate while the worker is working, and warns of danger levels based on the biometric information.

However, the safety management system described in Patent Document 1 requires workers to wear the device at all times, which may make safety management difficult.

Japanese Patent Application Laid-Open No. 2020-155066

The present invention was made in consideration of the above situation, and the problem it aims to solve is to provide a safety management system that makes it easy to manage the safety of subjects.

The above is the problem that this invention aims to solve, and next we will explain the means for solving this problem.

That is, in claim 1, the device comprises a cognitive function acquisition unit that acquires test results of the subject's cognitive function, a subjective evaluation acquisition unit that acquires a subjective evaluation of the subject's health state, an external factor information acquisition unit that acquires external factor information, which is information acquired using a specified device and is information regarding the subject's health state, and an estimation unit that can estimate a decline in the subject's cognitive function based on the cognitive function test results, the health state evaluation , and the external factor information, wherein the external factor information includes work environment information related to the subject's work environment, and the estimation unit estimates the work environment information based on weather information related to the weather .

In claim 2, the external factor information includes lifestyle habit information regarding the lifestyle of the subject, and when there is an abnormality in the cognitive function test results but no abnormality in the health status evaluation results, the estimation unit determines whether the lifestyle habit information satisfies a predetermined condition, and if it determines that the condition is satisfied, evaluates the decline in cognitive function of the subject based on the work environment information.

In claim 3, the target persons are people who work at a construction site of a building, and the weather information includes information about the weather at the construction site .

In a fourth aspect of the present invention, the device further comprises a countermeasure notification section that notifies a countermeasure based on the estimation result by the estimation section .

In claim 5, the system is provided with an evaluation result acquisition unit that acquires evaluation results of responses implemented based on the response plans of the response plan notification unit, and a learning unit that learns response plans based on the evaluation results, and the response plan notification unit notifies the response plan based on the results of learning by the learning unit .

The effects of the present invention are as follows:

In the present invention , safety management of subjects can be easily carried out.

1 is a block diagram showing a safety management system according to an embodiment of the present invention; 10 is a flowchart showing a safety management process. 3 is a flowchart showing a continuation of FIG. 2 . 10 is a flowchart showing a situation determination process. 10 is a flowchart showing an abnormality determination process.

The following describes a safety management system 1 according to one embodiment of the present invention, using Figure 1.

The safety management system 1 manages the safety of subjects. More specifically, the safety management system 1 estimates the decline in cognitive function of subjects and notifies them of countermeasures based on the estimation results. Here, "cognitive function" refers to intellectual functions (mental functions) including comprehension, judgment, memory, attention, logic, etc. In this embodiment, "decline in cognitive function" includes not only symptoms of dementia from a medical perspective, but also decline in mental function due to health problems such as lack of sleep or poor physical condition. The subjects of the safety management system 1 are workers, site supervisors, and other people who work at building construction sites.

The safety management system 1 comprises a terminal 10, a wearable terminal 20, and an external server 30.

The terminal 10 is capable of inputting, outputting, and processing various types of information. A portable information terminal (tablet, smartphone, etc.) can be used as the terminal 10. As shown in FIG. 1, the terminal 10 includes a touch panel 11, a speaker 12, a microphone 13, a control unit 14, and a communication unit 15.

The touch panel 11 allows for the input and display (output) of various types of information. The operator (subject) can operate the terminal 10 via the touch panel 11.

The speaker 12 converts electrical signals into a predetermined sound such as voice.

The microphone 13 is capable of capturing specific sounds, such as the subject's voice.

The control means 14 is capable of executing various types of control. The control means 14 is mainly composed of an arithmetic processing unit such as a CPU, and storage devices such as RAM, ROM, and HDD. The control means 14 is capable of executing apps (programs) stored in the storage devices. Information is input to the control means 14 via the touch panel 11 and microphone 13.

The communication unit 15 transmits and receives various types of information. The communication unit 15 can transmit and receive information to other terminals such as the wearable terminal 20, as well as control devices such as an external server 30 or a personal computer, and IoT (Internet of Things) devices that can communicate with external devices.

The wearable terminal 20 is a terminal that can be worn on the subject's body and is capable of inputting and outputting various types of information. In this embodiment, the wearable terminal 20 is a wristwatch-type terminal that can be worn on the subject's arm. The wearable terminal 20 is capable of acquiring biometric information of the subject. The wearable terminal 20 has sensors that can measure, for example, the subject's heart rate, changes in blood sugar level, and body temperature, and acquires biometric information based on the measurement results of the sensors. A detailed explanation of the biometric information will be given later. The wearable terminal 20 is capable of communicating with the control means 14.

The external server 30 is a control means (control device) separate from the terminal 10, and is capable of storing and calculating various types of information. The external server 30 is primarily composed of a processing unit such as a CPU, storage devices such as RAM and ROM, and input/output devices. The external server 30 is capable of communicating with the control means 14 and the wearable terminal 20.

The control means 14 of the terminal 10 described above is capable of estimating a decline in the subject's cognitive function based on the results of the subject's cognitive function check, a subjective assessment of their health status (hereinafter referred to as "subjective assessment"), and information on external factors (hereinafter referred to as "external factor information"), and is capable of executing safety management processing that presents countermeasures based on the estimation results. The safety management processing is executed by the operation of an application by the control means 14. The cognitive function check, subjective assessment, and external factor information are described in detail below.

The cognitive function check is a test to determine whether there are any abnormalities in the subject's cognitive function. The cognitive function check is designed to be able to assess the subject's cognitive function based on the correctness of answers to several predetermined questions. The cognitive function check is designed from a general medical perspective, with questions (such as "What is the date today?") from dementia tests (such as the Hasegawa Dementia Scale-R (HDS-R) or MMSE) added as appropriate to enable assessment of task-related cognitive function.

The questions for the cognitive function check are asked aloud via the speaker 12 of the terminal 10 or displayed on the touch panel 11. Responses to the cognitive function check are input by the subject's voice via the microphone 13. The subject may also manually input the responses via the touch panel 11. The cognitive function check may also be performed using another application that can check cognitive function using voice data. In this case, the other application is linked to the application that executes the safety management process.

Subjective assessment is a subjective assessment of the subject's own health condition. In this embodiment, health condition includes the subject's state regarding sleep, diet, and body temperature. The subjective assessment is formed so that the health condition can be estimated based on answers to predetermined questions. Questions in the subjective assessment include "Are you getting enough sleep?", "Are you eating?", and "Is your body temperature normal?".

Questions for the subjective evaluation are asked via the display on the touch panel 11 of the terminal 10 or via voice via the speaker 12. The subject answers the questions subjectively. The answers are input by the subject's hand via the touch panel 11. Alternatively, the answers may be input by the subject's voice via the microphone 13.

External factor information is information acquired using a specified device such as the wearable device 20. External factor information is not based on the subjective opinion of the subject, but is acquired to objectively assess the decline in cognitive function, including the subject's health condition. External factor information includes biometric information, lifestyle information, and work environment information.

Biometric information is information emitted by a living organism and acquired using the wearable device 20. In this embodiment, biological information includes heart rate, changes in blood sugar levels, body temperature, etc.

Lifestyle information is information about the subject's lifestyle that is estimated based on acquired biometric information. Lifestyle information includes, for example, sleep time estimated based on heart rate, and the number of meals estimated based on changes in blood glucose levels.

Work environment information is information about the subject's work environment that is estimated based on acquired weather information (weather information). Weather information can be acquired by receiving information from external web services such as weather information services.

The safety management process is explained below using the flowcharts in Figures 2 to 5. The safety management process is performed by a manager (e.g., a foreman or supervisor) at a construction site to manage the safety of workers (subjects). The safety management process is performed, for example, before work begins at a construction site.

The safety management process is executed when an operator (e.g., an administrator) starts the application. In the following example, the subject wears the wearable terminal 20 from the end of work on the previous day until the start of work on the current day, and the wearable terminal 20 acquires the subject's biometric information for the above period.

In step S10, the control means 14 executes processing for logging in. Specifically, the control means 14 displays a login screen on the touch panel 11 for inputting the target person's ID and password. The target person can use the application by inputting their ID and password. After executing the processing of step S10, the control means 14 proceeds to processing of step S11. Note that the processing of step S10 may be omitted and the processing of step S11 may be executed by launching the application.

In step S11, the control means 14 executes a cognitive function check. Specifically, the control means 14 asks questions for the cognitive function check by voice via the speaker 12 or by display on the touch panel 11. The cognitive function check is carried out by the subject inputting answers to the questions by voice via the microphone 13 or manually via the touch panel 11. Once the answers have been input, the control means 14 stores the results of the cognitive function check, which determines whether the answers are correct or incorrect.

In step S12, the control means 14 executes a situation assessment process. Here, the situation assessment process is a process for determining whether or not the subject's cognitive function has declined based on the results of the cognitive function check, subjective assessment, and external factor information. The flowchart in Figure 4 shows the processing performed in the situation assessment process. Details of the situation assessment process will be explained below using the flowchart in Figure 4.

In step S30, the control means 14 reads the results of the cognitive function check. After executing the processing of step S30, the control means 14 proceeds to the processing of step S31.

In step S31, the control means 14 determines whether or not there is an abnormality in the cognitive function of the subject based on the results of the cognitive function check. This determination is made based on the number of correct answers (points) in the cognitive function check. The threshold used as the basis for this determination can be set appropriately from the perspective of safety at the construction site. Note that if the cognitive function check is linked to another application that can check cognitive function using voice data, the control means 14 refers to the results of the other application and determines whether or not there is an abnormality in the cognitive function of the subject based on the results. If the control means 14 determines that there is an abnormality in the cognitive function of the subject, it proceeds to processing in step S32. On the other hand, if the control means 14 determines that there is no abnormality in the cognitive function of the subject, it proceeds to processing in step S41.

In step S32, the control means 14 asks questions for the subjective evaluation. Specifically, the control means 14 asks the questions by displaying them on the touch panel 11 or by voice via the speaker 12. The subject answers the questions by manual input via the touch panel 11 or by voice via the microphone 13. Specifically, the subject answers the questions "Are you getting enough sleep?", "Are you eating?", and "Is your body temperature normal?" After executing the process of step S32, the control means 14 proceeds to the process of step S33.

In step S33, the control means 14 waits for a certain period of time. This certain period of time can be set based on the time required for the subject to respond. After executing the processing of step S33, the control means 14 proceeds to the processing of step S34.

In step S34, the control means 14 determines whether the answers to the subjective evaluation questions have been completed. If the control means 14 determines that the answers to the subjective evaluation questions have been completed, it proceeds to processing in step S35. On the other hand, if the control means 14 determines that the answers to the subjective evaluation questions have not been completed, it proceeds to processing in step S33.

In step S35, the control means 14 analyzes the subjective assessment responses based on the responses. Specifically, the control means 14 determines that there is no abnormality if the answers to all of the questions "Are you getting enough sleep?", "Are you eating?", and "Is your body temperature normal?" are all YES, and determines that there is an abnormality if any of the answers are NO. After executing the process of step S35, the control means 14 proceeds to the process of step S36.

In step S36, the control means 14 analyzes the subjective evaluation responses and determines whether or not an abnormality has been detected. If the control means 14 determines that an abnormality has been detected as a result of analyzing the subjective evaluation responses, it proceeds to processing in step S37. On the other hand, if the control means 14 determines that no abnormality has been detected as a result of analyzing the subjective evaluation responses, it proceeds to processing in step S38.

In step S37, the control means 14 determines that "action is required." Here, "action is required" means that both the results of the cognitive function check and the results of the subjective assessment indicate an abnormality, or that the results of the analysis based on external factor information in step S38, which will be described later, indicate an abnormality. If it is determined that "action is required," it is assessed that there is the highest possibility that cognitive function has declined. If it is determined that "action is required," it is estimated that the subject's cognitive function has declined, and it is therefore determined that some kind of action needs to be taken against the subject. After executing the processing of step S37, the control means 14 terminates the situation assessment processing.

In step S38, the control means 14 reads the external factor information and analyzes the decline in cognitive function, including the subject's health condition, based on the external factor information.

Specifically, the control means 14 determines whether the subject is "sleeping well," "eating well," "has body temperature normal," and "is the weather good" based on the number of meals, sleep duration, body temperature, and weather information included in the external factor information.

Analysis based on external factor information is performed by executing the abnormality determination process shown in Figure 5. Here, the abnormality determination process is a process for determining a decline in cognitive function based on external factor information (biometric information, lifestyle information, and work environment information). The flowchart in Figure 5 shows the processing performed in the abnormality determination process. Details of the abnormality determination process will be explained below using the flowchart in Figure 5.

In step S50, the control means 14 determines whether the subject is sleeping. The control means 14 determines whether the subject is sleeping based on whether the sleep time included in the external factor information (lifestyle habit information) is equal to or greater than a predetermined threshold. If the control means 14 determines that the subject is sleeping, it proceeds to processing in step S51. On the other hand, if the control means 14 determines that the subject is not sleeping, it proceeds to processing in step S57.

In step S51, the control means 14 turns the consecutive days of sleep deprivation flag OFF. Here, "consecutive days of sleep deprivation flag OFF" indicates that the condition for determining that "the subject has not been able to get enough sleep for two or more consecutive days (consecutive days)" is not met. After executing the process of step S51, the control means 14 proceeds to the process of step S52.

In step S52, the control means 14 determines whether the subject is eating a meal. The control means 14 determines whether the subject is eating a meal based on whether the number of meals included in the external factor information (lifestyle information) is equal to or greater than a predetermined threshold. If the control means 14 determines that the subject is eating a meal, it proceeds to processing in step S53. On the other hand, if the control means 14 determines that the subject is not eating a meal, it proceeds to processing in step S60.

In step S53, the control means 14 turns the consecutive days of insufficient food flag OFF. Here, "consecutive days of insufficient food flag OFF" indicates that the condition for determining that "the subject has not eaten for two or more consecutive days" is not met. After executing the processing of step S53, the control means 14 proceeds to the processing of step S54.

In step S54, the control means 14 determines whether the subject's body temperature is normal. The control means 14 determines whether the body temperature is normal based on whether the body temperature included in the external factor information (biometric information) is above a predetermined threshold. If the control means 14 determines that the subject's body temperature is normal, it proceeds to processing in step S55. On the other hand, if the control means 14 determines that the subject's body temperature is not normal, it proceeds to processing in step S56.

In step S55, the control means 14 determines that no abnormality is found. That is, the control means 14 determines that, as a result of analysis based on external factor information, no decline in the subject's cognitive function is observed. After executing the processing of step S55, the control means 14 terminates the abnormality determination processing.

In step S56, the control means 14 determines that an abnormality has occurred. That is, the control means 14 determines that, as a result of analysis based on external factor information, a decline in the subject's cognitive function has been observed. After executing the processing of step S56, the control means 14 terminates the abnormality determination processing.

In step S57, which is performed if it is determined in step S50 that the subject is not getting enough sleep, the control means 14 determines whether the consecutive days of sleep deprivation flag is OFF. If the control means 14 determines that the consecutive days of sleep deprivation flag is OFF, the control means 14 proceeds to processing in step S58. On the other hand, if the control means 14 determines that the consecutive days of sleep deprivation flag is not OFF, the control means 14 proceeds to processing in step S63.

In step S58, the control means 14 turns the consecutive days of sleep deprivation flag ON. Here, "consecutive days of sleep deprivation flag ON" indicates that the conditions for determining that "the subject has not been able to get enough sleep for two or more consecutive days" are met. After executing the processing of step S58, the control means 14 proceeds to the processing of step S59.

In step S59, the control means 14 determines whether the weather is good. The control means 14 determines whether the weather is good based on the weather information included in the external factor information (work environment information). The control means 14 determines whether the weather is good based on whether the weather information indicates rain. If the control means 14 determines that the weather is good, it proceeds to processing in step S52. On the other hand, if the control means 14 determines that the weather is not good, it proceeds to processing in step S63.

In step S60, which is performed if it is determined in step S52 that the subject is not eating enough, the control means 14 determines whether the consecutive days of insufficient food intake flag is OFF. If the control means 14 determines that the consecutive days of insufficient food intake flag is OFF, the control means 14 proceeds to processing in step S61. On the other hand, if the control means 14 determines that the consecutive days of insufficient food intake flag is not OFF, the control means 14 proceeds to processing in step S62.

In step S61, the control means 14 turns the consecutive days of insufficient food flag ON. Here, "consecutive days of insufficient food flag ON" indicates that the condition for determining that "the subject has not eaten for two or more consecutive days" is met. After executing the processing of step S61, the control means 14 proceeds to the processing of step S62.

In step S62, the control means 14 determines whether the weather is good. If the control means 14 determines that the weather is good, it proceeds to processing in step S54. On the other hand, if the control means 14 determines that the weather is not good, it proceeds to processing in step S63.

In step S63, the control means 14 determines that an abnormality has occurred. That is, the control means 14 determines that a decline in the subject's cognitive function has been observed as a result of analysis based on the external factor information. After executing the processing of step S63, the control means 14 terminates the abnormality determination processing.

By performing the abnormality determination process as described above, it is possible to determine whether or not a decline in the subject's cognitive function, including their health status, has occurred based on the subject's biometric information, lifestyle information, and work environment information.

In the situation assessment process according to this embodiment, the assessments in steps S55, S56, and S63 also include whether or not there is a possibility of cognitive decline while working (i.e., in the future). More specifically, if, for example, the subject has not been able to sleep or eat, albeit not every day (step S57: YES, step S60: YES), and the work environment is poor, such as slippery ground due to rain (step S59: NO, step S62: NO), the subject is more likely to become fatigued than usual while working, which could ultimately lead to a decline in cognitive function. Therefore, in the abnormality assessment process, the control means 14 assesses whether cognitive decline is occurring, including the possibility of future decline, based on information about the work environment.

Furthermore, in the situation assessment process according to this embodiment, if it is determined that the subject has not eaten or slept for two or more consecutive days, it is determined that there is something wrong with their health (steps S57 and S60). In other words, in the situation assessment process, even if the subject has not eaten or slept for just one day, it is determined that there is nothing wrong with their health as long as there are no abnormalities in other conditions (weather and body temperature).

In addition, the thresholds that serve as the basis for each judgment in the situation assessment process can be set appropriately from the perspective of safety at the construction site. Taking into account that there are individual differences in the number of meals, amount of sleep, and body temperature, it is also possible to weight each item according to individual differences before making a judgment.

As described above, by executing the abnormality determination process, it is possible to determine whether or not an abnormality exists based on external factor information. If an abnormality is determined to exist in the analysis results, this indicates that a decline in the cognitive function, including the subject's health condition, has been recognized. As shown in FIG. 4, after executing the process of step S38, the control means 14 proceeds to the process of step S39.

In step S39, the control means 14 determines whether or not there is an abnormality in the results of the analysis based on the external factor information. If the control means 14 determines that there is an abnormality in the results of the analysis based on the external factor information, it proceeds to processing in step S37. On the other hand, if the control means 14 determines that there is no abnormality in the results of the analysis based on the external factor information, it proceeds to processing in step S40.

In step S40, the control means 14 determines that "observation is required." Here, "observation is required" means a state in which the results of the cognitive function check indicate an abnormality, but the results of the analysis of the subjective assessment responses and the results of the analysis based on external factor information indicate no abnormality, or a state in which the results of the cognitive function check indicate no abnormality, but the results of the analysis of the subjective assessment responses in step S45, described below, indicate an abnormality. If it is determined that "observation is required," then, after a determination that "action is required," it is assessed that there is a high possibility that cognitive function has declined. If it is determined that "observation is required," it is estimated that the subject's cognitive function may be declining, and therefore it is determined that observation of the subject, for example, while working, is necessary. After executing the processing of step S37, the control means 14 terminates the situation assessment processing.

If it is determined in step S31 that there is no abnormality in the subject's cognitive function, the control means 14 executes the processes from steps S41 to S45 to analyze the responses to the subjective assessment questions and determine whether there is an abnormality in the subject's subjective health condition based on the results. Here, the processes from steps S41 to S45 are the same as the processes from steps S31 to S35, so a description thereof will be omitted.

In step S45, if the control means 14 determines that an abnormality exists as a result of analyzing the subjective evaluation responses, it proceeds to processing in step S40. On the other hand, if the control means 14 determines that an abnormality does not exist as a result of analyzing the subjective evaluation responses, it proceeds to processing in step S46.

In step S46, the control means 14 determines that the situation is "safe." Here, "safe" means that there are no abnormalities in both the results of the cognitive function check and the results of the analysis of the subjective assessment responses. If the situation is determined to be "safe," it is assessed as having the lowest possibility of cognitive function decline. If the situation is determined to be "safe," it is estimated that no decline in the subject's cognitive function has been observed. After executing the processing of step S46, the control means 14 terminates the situation assessment processing.

As described above, by executing the situation assessment process (step S12), it is possible to determine whether the subject is in a "needs action," "needs observation," or "safe" state. In this way, the safety management system 1 can assess cognitive decline in multiple stages (three levels). As shown in Figure 2, after executing the process of step S12, the control means 14 proceeds to the process of step S13.

In step S13, the control means 14 determines whether the subject's cognitive function has declined. If the control means 14 determines that the subject's cognitive function has declined ("action required" or "observation required"), the control means 14 proceeds to processing in step S14. On the other hand, if the control means 14 determines that the subject's cognitive function has not declined, the control means 14 proceeds to processing in step S26.

In step S14, the control means 14 notifies the subject that their cognitive function has declined. That is, the control means 14 notifies the subject that they "require action" or "observation." The notification is made, for example, by displaying on the touch panel 11. After executing the processing of step S14, the control means 14 proceeds to the processing of step S15.

In step S15, the control means 14 stores the result indicating that the subject's cognitive function is declining. This is stored in the control means 14 of the terminal 10 or the external server 30. After executing the processing of step S15, the control means 14 proceeds to the processing of step S16.

In step S16, the control means 14 notifies the user of a response plan. The control means 14 notifies the user of a response plan corresponding to "action required" or "observation required" from among the response plans stored in advance. For example, if the subject is "action required," the control means 14 notifies the user of a response plan such as transferring the subject. Alternatively, if the subject is "observation required," the control means 14 notifies the user of a response plan such as having the subject work more carefully than usual. Note that response plans are not limited to the examples above, and various plans can be adopted from the perspective of safety at the construction site.

Furthermore, if the subject's body temperature is abnormal (step S54: NO: step S56), a more careful response plan is required, and a notification to that effect may be sent in step S16. The notification is sent, for example, by display on the touch panel 11. After executing the processing of step S16, the control means 14 proceeds to the processing of step S17.

In step S17, the control means 14 determines whether the notified countermeasure will be implemented. The operator inputs, for example, via the touch panel 11, a response indicating whether or not the notified countermeasure will be implemented. The control means 14 determines whether or not the countermeasure will be implemented based on the response. If the control means 14 determines that the notified countermeasure will be implemented, it proceeds to processing in step S18. On the other hand, if the control means 14 determines that the notified countermeasure will not be implemented, it proceeds to processing in step S19.

In step S18, the control means 14 registers the countermeasure to be implemented. This registration (saving) is performed in the control means 14 of the terminal 10 or the external server 30. After executing the processing of step S18, the control means 14 proceeds to the processing of step S20.

In step S19, the control means 14 issues a warning. The warning is issued, for example, by displaying a message on the touch panel 11. The warning may include, for example, a message prompting the user to confirm whether the notified countermeasure should be implemented. After executing the process of step S19, the control means 14 proceeds to the process of step S20.

In step S20, the control means 14 stores the result of whether or not the notified countermeasure was implemented. This is stored in the control means 14 of the terminal 10 or the external server 30. After executing the processing of step S20, the control means 14 proceeds to the processing of step S21.

In step S21, the control means 14 waits until a specified time. The specified time is set to the end time of the work (e.g., 6:00 PM). After executing the processing of step S21, the control means 14 proceeds to the processing of step S22.

In step S22, the control means 14 asks the subject a follow-up question and determines whether or not the subject has answered the follow-up question. Here, the follow-up question is a question about whether or not the implemented countermeasure was effective. The control means 14 displays the follow-up question on the touch panel 11. The subject answers the follow-up question by inputting an answer via the touch panel 11.

If the control means 14 determines that an answer to the additional question has been provided, it proceeds to processing in step S23. On the other hand, if the control means 14 determines that an answer to the additional question has not been provided, it proceeds to processing in step S24.

In step S23, the control means 14 stores the answer to the additional question. That is, the control means 14 stores the answer as to whether the proposed response was effective or not. The above storage is performed in the control means 14 of the terminal 10 or the external server 30.

The control means 14 also learns a response plan based on the answers to the additional questions. This learning can be performed using an existing learning program. As a result of this learning, the response plan is saved in the control means 14 of the terminal 10 or in the external server 30. The saved response plan is notified in step S16 depending on the conditions. After executing the processing of step S23, the control means 14 terminates the safety management processing.

In step S24, which is performed if it is determined in step S22 that there is no answer to the follow-up question, the control means 14 executes a follow-up question execution alert. Here, the follow-up question execution alert is a notification prompting the user to answer the follow-up question. The follow-up question execution alert is performed, for example, by a display on the touch panel 11. After executing the processing of step S24, the control means 14 proceeds to the processing of step S25.

In step S25, the control means 14 waits for a certain period of time. After executing the processing of step S35, the control means 14 proceeds to the processing of step S22.

In step S26, which is performed if it is determined in step S13 that the subject's cognitive function has not declined, the control means 14 notifies the subject that the cognitive function has not declined. In other words, the control means 14 notifies the subject that the subject is "safe." This notification is made, for example, by a display on the touch panel 11. After executing the processing of step S26, the control means 14 proceeds to the processing of step S27.

In step S27, the control means 14 stores the result indicating that the subject's cognitive function has not declined. This is stored in the control means 14 of the terminal 10 or the external server 30. After executing the processing of step S27, the control means 14 terminates the safety management processing.

The safety management process has been described above. Note that the safety management process according to this embodiment is merely an example, and the processes executed in the safety management process are not limited to the above example; any process may be added or modified.

Furthermore, the safety management process is not limited to a mode in which all processes are executed on the same terminal 10, and each process may be executed on a different terminal 10 as necessary. For example, processes related to questions and answers, such as cognitive function checks and subjective assessments, may be executed on a terminal 10 held by the subject, while processes such as notification of response plans may be executed on another terminal 10 held by the administrator. Furthermore, processes such as notification of response plans may be executed on multiple terminals 10, including other terminals 10 held by the subject and the administrator. In this case, an application that executes the safety management process is stored on each of the multiple terminals 10.

Furthermore, with the safety management system 1 described above, it is possible to estimate the cognitive decline of a subject before work begins based on the results of a cognitive function check, subjective assessment, and external factor information, and notify the subject of a proposed response based on the estimation results. This allows for measures such as reassignment to be taken in advance. Furthermore, it is possible to easily estimate the decline in cognitive function without requiring the subject to wear a device that acquires biometric information while working.

One way to understand the subject's health condition before the work begins is for the manager to verbally ask about their health. However, it is possible that the subject may find it difficult to tell the manager about their condition, or may not even be aware of it. In such cases, the above method will not be able to effectively understand the subject's health condition.

On the other hand, the safety management system 1 is configured to ask the subject questions about their health condition via the terminal 10 in accordance with the operation of the application. This makes it easier for the subject to respond to questions about their own ailments.

In addition, the safety management system 1 analyzes the decline in cognitive function, including the subject's health condition, using external factor information acquired by the wearable device 20 in addition to the subject's subjective assessment of their health condition (subjective assessment). Specifically, in the situation assessment process shown in FIG. 4, if the cognitive function check results in an abnormality but the analysis of the subjective assessment responses shows no abnormality (step S31: YES, step S36: NO), the control means 14 analyzes the decline in cognitive function using the analysis results based on the external factor information (steps S38 and S39), and can evaluate the decline in cognitive function into multiple stages ("action required" or "observation required"). This makes it possible to discover the subject's condition by performing an analysis based on the external factor information, even if the subject is unaware of their condition. It also makes the subject aware of their condition.

Another possible method for determining whether a subject's cognitive function has declined before the task begins is to distribute general cognitive function test forms to the subject, have them fill them out, and then tally the results. However, this method is likely to take time. Furthermore, in this case, the test method is independent of other tests, such as subjective assessments, making it difficult to link with other tests.

On the other hand, the safety management system 1 is configured to obtain responses to the cognitive function check via the terminal 10. This saves time and also allows the cognitive function check and subjective assessment to be performed simultaneously via the terminal 10, making it easier to link the results of each test.

In addition, the safety management system 1 can store the implementation of a response plan and its results on the terminal 10 or external server 30. This allows a record of the response to be kept.

Furthermore, after notifying a response plan, the safety management system 1 can learn effective response plans based on the answers to questions about whether the response plan was effective (steps S22 and S23). Furthermore, the results of this learning can be notified as a response plan (step S16). This allows for notification of effective response plans based on the learning results.

As described above, the safety management system 1 according to one embodiment of the present invention includes:
A cognitive function acquisition unit (touch panel 11) that acquires test results of the subject's cognitive function (results of the cognitive function check);
a subjective assessment acquisition unit (microphone 13) for acquiring a subjective assessment of the health state of the subject;
an external factor information acquisition unit (wearable terminal 20) that acquires external factor information, which is information acquired using a predetermined device and is information regarding the health condition of the subject;
An estimation unit (control means 14) capable of estimating a decline in cognitive function of the subject based on the cognitive function test results, the health state evaluation, and the external factor information (step S12);
It is equipped with the following.

This configuration makes it easy to manage the safety of the subject. That is, it is possible to estimate the decline in the subject's cognitive function based on information indicating the subject's condition before work, rather than during work. This eliminates the need for the subject to wear the device at all times while working, making it easy to manage the subject's safety. Furthermore, it is possible to estimate the decline in the subject's cognitive function by comprehensively assessing the results of the subject's cognitive function test, a subjective assessment of their health status, and information on external factors, including biometric information, before work.

In addition, the safety management system 1 includes:
The control unit 14 includes a countermeasure notification unit that notifies the user of a countermeasure based on the estimation result by the estimation unit 14 (step S16).

With this configuration, safety management can be more easily carried out by notifying a response plan based on the estimation results by the estimation unit (control means 14).

In addition, the safety management system 1 includes:
an evaluation result acquisition unit (touch panel 11) that acquires an evaluation result of the measures implemented based on the measures proposed by the measure proposal notification unit (control means 14);
a learning unit (control means 14) that learns a countermeasure plan based on the evaluation result;
Equipped with
The countermeasure notification unit (control means 14)
The learning unit (control means 14) notifies the user of a countermeasure based on the results of learning (steps S16 and S23).

This configuration makes it possible to notify users of countermeasures based on the learning results.

Further, the estimation unit (control means 14)
If there is an abnormality in the cognitive function test results (cognitive function check results) but there is no abnormality in the health status evaluation results (step S31: YES, step S36: NO), the external factor information is used to evaluate the subject's cognitive function decline in multiple stages (steps S38, S39).

With this configuration, even if the subject is unaware of their own condition, it is possible to detect the subject's condition by evaluating the decline in cognitive function at multiple levels based on information from external factors.

In addition, the safety management system 1 includes:
The cognitive function acquisition unit (touch panel 11) and the subjective evaluation acquisition unit (microphone 13) are provided in the same device (terminal 10).

This configuration makes it easier to link the information acquired by the cognitive function acquisition unit (touch panel 11) and the information acquired by the subjective evaluation acquisition unit (microphone 13).

The terminal 10 according to this embodiment is one form of the device according to the present invention.
The cognitive function check according to this embodiment is one form of the cognitive function test according to the present invention.
The touch panel 11 according to this embodiment is one form of the cognitive function acquisition unit and the evaluation result acquisition unit according to the present invention.
The microphone 13 according to this embodiment is one form of the subjective evaluation acquisition section according to the present invention.
The wearable terminal 20 according to this embodiment is one form of an external factor information acquisition unit according to the present invention.
The control unit 14 according to this embodiment is one form of the estimation unit, the countermeasure notification unit, and the learning unit according to the present invention.

The above describes one embodiment of the present invention, but the present invention is not limited to the above configuration, and various modifications are possible within the scope of the invention described in the claims.

For example, in this embodiment, an example has been shown in which questions for the cognitive function check are displayed on the touch panel 11 and the subject inputs answers to the questions via the touch panel 11 during the cognitive function check, but this configuration is not limited to this. For example, the cognitive function check may be conducted using paper media. In this case, the answers written by the subject on the paper media may be input by another person into the terminal 10 via the touch panel 11, etc.

In addition, while this embodiment has shown an example in which external factor information (biometric information) is acquired via the wearable terminal 20, this configuration is not limited to this. For example, instead of the wearable terminal 20, external factor information (biometric information) may be acquired by a device that is not worn on the subject's body. In this case, the biometric information may be acquired by an IoT device or the like that is capable of measuring biometric information. Alternatively, the biometric information may be acquired by the terminal 10. In this case, information input via the touch panel 11 may be acquired as biometric information.

Furthermore, in this embodiment, weather information is included in the external factor information, but this configuration is not limited to this. For example, the external factor information may not include weather information, and subjective assessment and analysis of external factor information may be performed using only information related to the subject's health condition (biometric information and lifestyle information).

In addition, in this embodiment, an example has been shown in which the safety management system 1 includes the terminal 10, the wearable terminal 20, and the external server 30, but this configuration is not limited to this. For example, the safety management system 1 may not include the external server 30. In this case, all data may be stored in the control means 14 of the terminal 10. Also, the wearable terminal 20 may not be included. In this case, external factor information may be acquired only by the terminal 10.

Furthermore, the criteria used in the situation assessment process in this embodiment, "Are you getting enough sleep?", "Are you eating?", "Is your body temperature normal?", and "Is the weather good?", are merely examples. Various criteria can be used as the criteria for the situation assessment process.

Furthermore, in this embodiment, the information acquired as external factor information (biometric information, lifestyle information, and work environment information) is an example. Various types of information can be used as information acquired as external factor information.

Furthermore, while this embodiment illustrates an example in which lifestyle habit information is estimated based on biometric information, the present invention is not limited to this configuration. For example, lifestyle habit information may be estimated based on information other than biometric information, such as image information.

In addition, in this embodiment, an example has been shown in which the subject's heart rate, blood sugar level changes, and body temperature are acquired using the sensors of the wearable terminal 20, but this configuration is not limited to this. Various types of information, such as the amount of sweating and blood pressure, can be used as information acquired by the sensors of the wearable terminal 20.

In this embodiment, the safety management system 1 is a system targeted at workers working at building construction sites, but it is not limited to this configuration. For example, the safety management system 1 may also be a system targeted at workers working in a factory, etc.

10 Terminal 20 Wearable terminal 30 External server

Claims (5)

a cognitive function acquisition unit that acquires test results of the subject's cognitive function;
a subjective assessment acquisition unit that acquires a subjective assessment of the health state of the subject;
an external factor information acquisition unit that acquires external factor information, which is information acquired using a predetermined device and is information regarding the health condition of the subject;
an estimation unit capable of estimating a decline in cognitive function of the subject based on the cognitive function test results, the health state evaluation, and the external factor information;
Equipped with
The external factor information includes work environment information related to the work environment of the subject,
The estimation unit
estimating the work environment information based on weather information;
Safety management system. the external factor information includes lifestyle habit information regarding the lifestyle of the subject,
The estimation unit
When the cognitive function test result shows an abnormality but the health condition evaluation result shows no abnormality, it is determined whether or not the lifestyle habit information satisfies a predetermined condition, and when it is determined that the condition is satisfied, the cognitive function of the subject is evaluated based on the work environment information.
The safety management system of claim 1 . The target is anyone who works at a building construction site,
The weather information includes information about the weather at the construction site.
The safety management system according to claim 1 or 2. a countermeasure notification unit that notifies a countermeasure based on the estimation result by the estimation unit;
The safety management system of claim 1 . an evaluation result acquisition unit that acquires an evaluation result of a response implemented based on the response plan proposed by the response plan notification unit;
a learning unit that learns a response plan based on the evaluation result;
Equipped with
The countermeasure plan notification unit
notifying the user of a countermeasure based on the results of learning by the learning unit;
The safety management system according to claim 4 .