Worker monitoring system

Abstract

We provide a worker monitoring system that can be easily and inexpensively implemented at work sites. [Solution] The worker monitoring system 1 comprises a body information measurement sensor 110, a body information relay 120, a motion information measurement sensor 130, a motion information relay 140, and a monitoring device 150. The body information measurement sensor 110 is attached to a sweat-absorbing pad 103 that can be attached to the inside of a helmet 100 worn by a worker. The body information measurement sensor 110 contacts the worker's head to measure body information such as the worker's body temperature and pulse, and transmits a wireless signal related to the measurement result to the monitoring device 150 via the body information relay 120. The motion information measurement sensor 130 is attached to the helmet 100 worn by the worker. The motion information measurement sensor 130 measures the acceleration of the helmet 100 as motion information of the worker, and transmits a signal related to the measurement result to the monitoring device 150 via the motion information relay 140.

Description

Technical Field

[0001] The present invention relates to a worker monitoring system for monitoring the physical information and motion information of workers, and particularly to a system using a sensor that can be easily attached to the helmets worn by workers.

Background Art

[0002] In recent years, due to rising temperatures associated with global warming, the working environment of workers at work sites has become harsh. In addition, due to labor shortages and the aging of workers, the physical burden on workers has been increasing. As a result, the risk of workers suffering from heatstroke and being involved in falls or accidents has been increasing. Therefore, measures at the national level to manage the physical condition of workers and reduce the risk of accidents have become an urgent issue. Thus, for example, as shown in Patent Document 1, a fatigue determination system has been proposed that determines the degree of burden or fatigue of a subject being measured based on at least one of the physical information and motion information of the subject while working.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] The fatigue determination system (10) of Patent Document 1 includes a wearable sensor (12), a fatigue determination device (14), and an information processing device (16) (paragraph 0029).

[0005] The wearable sensor (12) is a device worn by a person being measured to measure the person's pulse rate (physical information), the number of steps taken and the change in activity level over time (motion information). The wearable sensor (12) may be, for example, a smart band that is attached to the person's wrist by a band (paragraphs 0031, 0032). The wearable sensor (12) also includes a pulse sensor (22), an acceleration sensor (20), a step count calculation unit (24), and a communication unit (28) (paragraph 0034). The pulse sensor (22) measures the person's pulse rate (paragraph 0036). The acceleration sensor (20) measures the person's movement (activity level) (paragraph 0035). The step count calculation unit (24) calculates the person's step count based on the detection result from the acceleration sensor (20) (paragraph 0037). The communications unit (28) periodically (for example, every minute) transmits the measured results of the subject's pulse rate, steps, and activity level to the fatigue determination device (14) via wireless communication such as WiFi® and Bluetooth® (paragraph 0038).

[0006] The fatigue determination device (14) is an information processing device such as a server, and determines the degree of fatigue of the subject based on the measurement result of at least one of the subject's physical information and movement information transmitted from the wearable sensor (12) (paragraphs 0039, 0041). The fatigue determination device (14) also transmits the determination result of the subject's fatigue level to the information processing device (16). The information processing device (16) is a portable device such as a smartphone or tablet owned by the subject. The determination result from the fatigue determination device (14) is displayed on the display of the information processing device (16) and notified to the subject by voice. The subject can confirm the determination result on the information processing device (16) (paragraphs 0030, 0082).

[0007] However, when introducing the fatigue assessment system (10) described in Patent Document 1, the person being measured must wear a smart band or the like as a wearable sensor (12). Therefore, there is a risk that the wearable sensor (12) may interfere with the work when the person being measured is performing complex manual tasks. Furthermore, when introducing the fatigue assessment system (10) described in Patent Document 1, in addition to the smart band or the like as a wearable sensor (12), it is also necessary to prepare a smartphone or tablet terminal as an information processing device (16), which may increase costs.

[0008] This invention has been made in view of these circumstances, and aims to provide a monitoring system that can be easily and inexpensively introduced at work sites. [Means for solving the problem]

[0009] To solve the above problems, the first invention of the present application is a worker monitoring system for monitoring the physical information and motion information of a worker wearing a helmet, comprising a monitoring device, a physical information measurement sensor, a physical information relay, a motion information measurement sensor, and a motion information relay. The monitoring device has a storage device capable of storing the worker's physical information and motion information. The physical information measurement sensor is attached to a sweat-absorbing pad that can be attached to the inside of the helmet worn by the worker. The physical information measurement sensor contacts the worker's head and measures at least one of the worker's physical information, such as body temperature, pulse rate, blood pressure, blood glucose level, and blood oxygen saturation, and transmits a wireless signal relating to the measurement result. When the physical information relay receives a wireless signal relating to the measurement result of the physical information, it transmits a wireless signal to the monitoring device. The motion information measurement sensor is attached to the helmet worn by the worker. The motion information measurement sensor measures the acceleration of the helmet as motion information of the worker and transmits a signal relating to the measurement result. When the motion information relay receives a signal relating to the measurement result of the motion information, it transmits a wireless signal to the monitoring device. Short-range wireless communication is also performed between the body information measurement sensor and the body information relay. Alternatively, short-range wireless communication is performed between the motion information measurement sensor and the motion information relay, or wired communication is performed between the motion information measurement sensor and the motion information relay. Furthermore, long-range wireless communication, which has a longer communication range than the short-range wireless communication, is performed between the body information relay and the monitoring device, and between the motion information relay and the monitoring device. The monitoring device can also determine whether the measurement result of the body information received via the body information relay is normal or abnormal, and / or whether the motion information received via the motion information relay is normal or abnormal.

[0010] The second invention of this application is the worker monitoring system of the first invention, wherein the short-range wireless communication is a communication compliant with the BLE (Bluetooth Low Energy) standard.

[0011] The third invention of this application is a worker monitoring system according to the first or second invention, wherein the long-distance wireless communication is a communication compliant with the LPWA (Low Power, Wide Area) standard.

[0012] The fourth invention of this application is a worker monitoring system according to any one of the first to third inventions, wherein the monitoring device performs an alarm operation via an alarm unit when it determines that the measurement result of the physical information is abnormal, and / or when it determines that the measurement result of the movement information is abnormal.

[0013] The fifth invention of this application is a worker monitoring system according to any one of the first to fourth inventions, wherein the body information measurement sensor transmits a wireless signal relating to the measurement result of the body information once at a first predetermined time, and the motion information measurement sensor transmits a signal relating to the measurement result of the motion information once at a second predetermined time that is shorter than the first predetermined time. [Effects of the Invention]

[0014] According to the first to fifth inventions of this application, by monitoring the physical information of workers using measurement results from a body information measurement sensor that can be easily and inexpensively attached to the helmet worn by the worker, the physical condition of the worker can be managed. Similarly, by monitoring the movement information of workers using measurement results from a movement information measurement sensor that can be easily and inexpensively attached to the helmet worn by the worker, falls and tumbles of workers can be detected immediately.

[0015] In particular, according to the second invention of this application, low-power, short-range data communication can be performed from a body information measurement sensor to a body information relay device, and from an action information measurement sensor to an action information relay device.

[0016] In particular, according to the third invention of this application, long-distance data communication can be performed with low power from a body information relay device to a monitoring device, and from an action information relay device to a monitoring device.

[0017] In particular, according to the fourth invention of the present application, since the monitoring device can recognize the abnormality of the worker, the rescue of the worker can be carried out promptly.

Brief Description of the Drawings

[0018] [Figure 1] Figure 1 is a schematic diagram for explaining a worker monitoring system. [Figure 2] Figure 2 is a block diagram schematically showing the connection of each part in a worker monitoring system. [Figure 3] Figure 3 is a block diagram showing the electrical configuration of a body information measurement sensor. [Figure 4] Figure 4 is a block diagram showing the electrical configuration of a body information relay device. [Figure 5] Figure 5 is a block diagram showing the electrical configuration of an operation information measurement sensor. [Figure 6] Figure 6 is a block diagram showing the electrical configuration of an operation information relay device. [Figure 7] Figure 7 is a block diagram showing the electrical configuration of a monitoring device. [Figure 8] Figure 8 is a schematic diagram showing the measurement results of the body information of a plurality of workers displayed on a display unit, and the determination results of whether each measurement result is normal or abnormal. [Figure 9] Figure 9 is a schematic diagram showing the measurement results of the operation information of a plurality of workers displayed on a display unit, and the determination results of whether each measurement result is normal or abnormal.

Embodiments for Carrying Out the Invention

[0019] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0020] <1. Configuration of Worker Monitoring System> Figure 1 is a schematic diagram illustrating the worker monitoring system 1. The worker monitoring system 1 is a system that monitors the physical information and movement information of multiple workers, each wearing a helmet 100. The worker monitoring system 1 is applicable, for example, to work sites where wearing a helmet 100 is required. In particular, the worker monitoring system 1 of this embodiment is applicable to work sites where workers perform various tasks such as transporting heavy objects and operating heavy machinery in a hot and humid environment.

[0021] Figure 2 is a block diagram schematically showing the connections of each part in the worker monitoring system 1. In Figure 2, helmets 100 worn by multiple workers are shown as helmet 100A, helmet 100B, helmet 100C, etc., to distinguish them from one another. As shown in Figures 1 and 2, the worker monitoring system 1 includes a body information measurement sensor 110, a body information relay 120, an action information measurement sensor 130, and an action information relay 140, which are provided for each helmet 100 worn by multiple workers, and a monitoring device 150. Furthermore, the body information measurement sensor 110, body information relay 120, action information measurement sensor 130, and action information relay 140 corresponding to one helmet 100 (for example, helmet 100A) have the same configuration as the body information measurement sensor 110, body information relay 120, action information measurement sensor 130, and action information relay 140 corresponding to another helmet 100 (for example, helmet 100B). Therefore, the following description will only explain the configuration of a body information measurement sensor 110, a body information relay 120, a motion information measurement sensor 130, and a motion information relay 140, all of which correspond to one helmet 100.

[0022] As shown in Figure 1, a headband 101 is attached to the inside of each helmet 100, which surrounds the head of the worker wearing the helmet 100. The worker can fit the helmet 100 to their head by putting on the helmet 100 and adjusting the adjuster 102 located at the rear of the headband 101.

[0023] Furthermore, a sweat-absorbing pad 103 is attached to the front of the headband 101. The sweat-absorbing pad 103 is made of a mesh material, for example, polyester fiber, and has the effect of absorbing sweat and heat. The sweat-absorbing pad 103 is wrapped around the front of the headband 101 and secured by a snap fastener. However, the method of attaching the sweat-absorbing pad 103 is not limited to this. The sweat-absorbing pad 103 comes into contact with the forehead of the worker wearing the helmet 100 and can suppress stuffiness on the forehead.

[0024] However, the position where the sweat-absorbing pad 103 is fixed may be offset from the front part of the headband 101. For example, the sweat-absorbing pad 103 may be in contact with the worker's temple or ear. In other words, the sweat-absorbing pad 103 only needs to be attachable to the inside of the helmet 100 worn by the worker. A body information measurement sensor 110 is attached to the sweat-absorbing pad 103. Power is supplied to the body information measurement sensor 110 from a power source (rechargeable battery) not shown in the figure. The body information measurement sensor 110 is activated when power is supplied. However, the method of supplying power to the body information measurement sensor 110 is not limited to this.

[0025] Figure 3 is a block diagram showing the electrical configuration of the body information measurement sensor 110. As shown in Figure 3, the body information measurement sensor 110 includes a body information sensor control unit 111, a body information sensor board 112, and a body information short-range transmission unit 113. The body information sensor board 112 and the body information short-range transmission unit 113 are each electrically connected to the body information sensor control unit 111. However, the body information sensor board 112 and the body information short-range transmission unit 113 may each be included in the body information sensor control unit 111.

[0026] The body information sensor control unit 111 includes a microcontroller and executes a program pre-written in memory or the like to drive and control the body information sensor board 112 and the body information short-range transmission unit 113.

[0027] The body information sensor board 112 is a sensor board capable of acquiring various types of physical information of a worker. As described above, the body information measurement sensor 110 is attached to the sweat absorption pad 103. The body information sensor board 112, while attached to the sweat absorption pad 103 installed inside the helmet 100, comes into contact with the head of the worker wearing the helmet 100.

[0028] The body information measurement sensor 110 of this embodiment measures the worker's body temperature, pulse rate, blood pressure (maximum value), blood pressure (minimum value), blood glucose level, and blood oxygen saturation. However, the objects measured by the body information measurement sensor 110 are not limited to these. The body information measurement sensor 110 only needs to measure at least one of the worker's body information: body temperature, pulse rate, blood pressure, blood glucose level, and blood oxygen saturation. The body information measurement sensor 110 then transmits a wireless signal related to the measurement results of the worker's body information from the body information short-range transmission unit 113 to the body information relay unit 120. The body information measurement sensor 110 also transmits a wireless signal related to the measurement results of the worker's body information once at a first predetermined time interval. The wireless signal includes identification information of the body information measurement sensor 110 that acquired the measurement results. Here, as identification information for the body information measurement sensor 110, for example, identification information of the helmet 100 to which the body information measurement sensor 110 is attached (information unique to each of the multiple helmets 100A, helmet 100B, helmet 100C, etc.) can be used.

[0029] The body information short-range transmission unit 113 is a transmission means that transmits a wireless signal related to the measurement results of the worker's body information to the body information relay unit 120. The body information relay unit 120 is positioned on or near the side of the helmet 100 to which the body information measurement sensor 110 is attached. Therefore, short-range wireless communication is performed between the body information measurement sensor 110 and the body information relay unit 120. Specifically, the short-range wireless communication is a communication that conforms to the BLE (Bluetooth Low Energy) standard. By performing such communication, low-power short-range data communication can be performed from the body information measurement sensor 110 to the body information relay unit 120.

[0030] The body information relay device 120 is a relay device for transmitting the worker's body information received from the body information measurement sensor 110 to the monitoring device 150. In this embodiment, the body information relay device 120 is fixed to the side of the helmet 100. Power is supplied to the body information relay device 120 from a power supply (rechargeable battery) which is not shown. The body information relay device 120 becomes activated when power is supplied. However, the position in which the body information relay device 120 is placed and the method of supplying power to the body information relay device 120 are not limited to this. The body information relay device 120 may be placed near the worker wearing the helmet 100. Also, the body information relay device 120 may be integrated with the operation information relay device 140.

[0031] Figure 4 is a block diagram showing the electrical configuration of the body information relay unit 120. As shown in Figure 4, the body information relay unit 120 includes a body information relay unit control unit 121, a body information short-range receiving unit 122, a body information long-range transmitting unit 123, and a body information sub-alarm unit 124. The body information short-range receiving unit 122, the body information long-range transmitting unit 123, and the body information sub-alarm unit 124 are each electrically connected to the body information relay unit control unit 121. However, the body information short-range receiving unit 122, the body information long-range transmitting unit 123, and the body information sub-alarm unit 124 may each be included in the body information relay unit control unit 121.

[0032] The body information relay control unit 121 includes a microcontroller and executes a program pre-written in memory, etc., to drive and control the body information short-range receiving unit 122, the body information long-range transmitting unit 123, and the body information sub-alarm unit 124. When the body information relay control unit 121 receives a wireless signal related to the measurement results of the worker's body information via the body information short-range receiving unit 122, it transmits a different wireless signal from the received wireless signal to the monitoring device 150 via the body information long-range transmitting unit 123. In other words, when the body information relay unit 120 receives a wireless signal related to the measurement results of body information, it transmits a wireless signal to the monitoring device 150.

[0033] The long-distance body information transmission unit 123 is a transmission means that transmits wireless signals related to the measurement results of the worker's body information to the monitoring device 150. The monitoring device 150 is located several meters to tens of meters away from the helmet 100 on which the body information relay unit 120 is attached. Therefore, long-distance wireless communication is performed between the body information relay unit 120 and the monitoring device 150. Long-distance wireless communication has a longer communication range than the short-distance wireless communication described above. Specifically, long-distance wireless communication conforms to the LPWA (Low Power, Wide Area) standard. By performing this type of communication, long-distance data communication can be performed from the body information relay unit 120 to the monitoring device 150 with low power consumption.

[0034] The body information sub-alarm unit 124 has an LED lamp (not shown), an electronic sound alarm with a built-in horn that emits a warning sound, and / or a display capable of displaying warning characters. As will be described in detail later, in the monitoring device 150, if the body information of a certain worker is determined to be abnormal based on the measurement results from the body information measurement sensor 110, the body information relay control unit 121 of the body information relay unit 120 attached to the helmet 100 worn by the worker will perform an alarm operation via the body information sub-alarm unit 124.

[0035] The motion information measurement sensor 130 is a detection device that detects falls and tumbles of workers. The motion information measurement sensor 130 and the motion information relay 140 are housed and fixed in a case 135 (see Figure 1) on the side of the helmet 100 worn by the worker. In other words, the motion information measurement sensor 130 is attached to the helmet 100 worn by the worker. Power is supplied to the motion information measurement sensor 130 from a power source (rechargeable battery) not shown in the figure. The motion information measurement sensor 130 is activated when power is supplied. However, the position in which the motion information measurement sensor 130 is placed and the method of supplying power to the motion information measurement sensor 130 are not limited to these.

[0036] Figure 5 is a block diagram showing the electrical configuration of the motion information measurement sensor 130. As shown in Figure 5, the motion information measurement sensor 130 includes a motion information sensor control unit 131, a motion information sensor board 132, and a motion information short-range transmission unit 133. The motion information sensor board 132 and the motion information short-range transmission unit 133 are each electrically connected to the motion information sensor control unit 131. However, the motion information sensor board 132 and the motion information short-range transmission unit 133 may each be included in the motion information sensor control unit 131.

[0037] The motion information sensor control unit 131 includes a microcontroller and executes a program pre-written in memory or the like to drive and control the motion information sensor board 132 and the motion information short-range transmission unit 133.

[0038] The motion information sensor board 132 is a device capable of detecting the acceleration of the helmet 100. When a worker wearing the helmet 100 falls or tumbles, the acceleration of the helmet 100 changes significantly from its normal state. Therefore, based on the acceleration of the helmet 100 detected by the motion information sensor board 132, it is possible to detect when a worker wearing the helmet 100 falls or tumbles. In other words, the motion information measurement sensor 130 measures the acceleration of the helmet 100 as motion information of the worker.

[0039] The motion information measurement sensor 130 then transmits a signal relating to the measurement result of the worker's motion information from the motion information short-range transmission unit 133 to the motion information relay unit 140. The motion information measurement sensor 130 transmits the signal relating to the measurement result of the worker's motion information once at a second predetermined time interval. This second predetermined time interval is shorter than the first predetermined time interval. The signal includes identification information of the motion information measurement sensor 130 that acquired the measurement result. Here, as the identification information of the motion information measurement sensor 130, for example, identification information of the helmet 100 to which the motion information measurement sensor 130 is attached (information unique to each of the multiple helmets 100A, helmet 100B, helmet 100C, etc.) can be used.

[0040] The motion information short-range transmission unit 133 is a transmitting means that transmits signals related to the measurement results of the worker's motion information to the motion information relay unit 140. As described above, the motion information measurement sensor 130 and the motion information relay unit 140 are fixed, for example, on the side of the helmet 100 worn by the worker, while being housed in the case 135. In this embodiment, the motion information short-range transmission unit 133 and the motion information short-range receiving unit 142 of the motion information relay unit 140, which will be described later, are connected by a wire. Wired communication is then performed between the motion information measurement sensor 130 and the motion information relay unit 140. By performing such communication, low-power short-range data communication can be performed from the motion information measurement sensor 130 to the motion information relay unit 140.

[0041] However, short-range wireless communication may be performed between the motion information measurement sensor 130 and the motion information relay unit 140. In that case, the motion information measurement sensor 130 only needs to transmit a wireless signal related to the measurement result of the worker's motion information from the short-range motion information transmission unit 133 to the short-range motion information receiving unit 142 of the motion information relay unit 140, which will be described later. This short-range wireless communication is compliant with the BLE (Bluetooth Low Energy) standard. By performing such communication, low-power short-range data communication can be performed from the motion information measurement sensor 130 to the motion information relay unit 140.

[0042] The operation information relay 140 is a relay device for transmitting worker operation information received from the operation information measurement sensor 130 to the monitoring device 150. As described above, the operation information relay 140 in this embodiment is fixed to the side of the helmet 100. Power is supplied to the operation information relay 140 from a power supply (rechargeable battery) which is not shown. The operation information relay 140 becomes activated when power is supplied. However, the position in which the operation information relay 140 is placed and the method of supplying power to the operation information relay 140 are not limited to this. The operation information relay 140 may be placed near the worker wearing the helmet 100.

[0043] Figure 6 is a block diagram showing the electrical configuration of the operation information repeater 140. As shown in Figure 6, the operation information repeater 140 includes an operation information repeater control unit 141, an operation information short-range receiving unit 142, an operation information long-range transmitting unit 143, and an operation information sub-alarm unit 144. The operation information short-range receiving unit 142, the operation information long-range transmitting unit 143, and the operation information sub-alarm unit 144 are each electrically connected to the operation information repeater control unit 141. However, the operation information short-range receiving unit 142, the operation information long-range transmitting unit 143, and the operation information sub-alarm unit 144 may each be included in the operation information repeater control unit 141.

[0044] The operation information relay control unit 141 includes a microcontroller and executes a program pre-written in memory or the like to drive and control the operation information short-range receiving unit 142, the operation information long-range transmitting unit 143, and the operation information sub-alarm unit 144. When the operation information relay control unit 141 receives a signal related to the measurement result of worker operation information via the operation information short-range receiving unit 142, it transmits a different wireless signal to the monitoring device 150 via the operation information long-range transmitting unit 143. In other words, when the operation information relay unit 140 receives a signal related to the measurement result of operation information, it transmits a wireless signal to the monitoring device 150.

[0045] The operation information long-distance transmission unit 143 is a transmission means that transmits a wireless signal related to the measurement results of the worker's operation information to the monitoring device 150. The monitoring device 150 is located several meters to tens of meters away from the helmet 100 to which the operation information repeater 140 is attached. Therefore, long-distance wireless communication is performed between the operation information repeater 140 and the monitoring device 150. Long-distance wireless communication has a longer communication range than the short-distance wireless communication described above. Specifically, long-distance wireless communication is a communication that conforms to the LPWA (Low Power, Wide Area) standard. By performing such communication, long-distance data communication can be performed from the operation information repeater 140 to the monitoring device 150 with low power.

[0046] The operation information sub-alarm unit 144 has an LED lamp (not shown), an electronic sound alarm with a built-in horn that emits a warning sound, and / or a display capable of displaying warning characters. As will be described in detail later, in the monitoring device 150, if a fall or slip of a foot is detected by the operation information measurement sensor 130, the operation information relay control unit 141 of the operation information relay unit 140 attached to the helmet 100 worn by the worker will perform an alarm operation via the operation information sub-alarm unit 144.

[0047] Furthermore, in a work site where the worker monitoring system 1 is applied, an external monitoring device 150 (server, etc.) is installed at a location several meters to tens of meters away from multiple workers, each wearing a helmet 100. The monitoring device 150 is a device that aggregates the measurement results of physical information and movement information for each of the multiple workers. Power is supplied to the monitoring device 150 from a power source not shown in the diagram. The monitoring device 150 becomes operational when power is supplied. However, the location where the monitoring device 150 is installed and the method of supplying power to the monitoring device 150 are not limited to this.

[0048] Figure 7 is a block diagram showing the electrical configuration of the monitoring device 150. As shown in Figure 7, the monitoring device 150 includes a monitoring control unit 151, a remote body information receiving unit 152, a remote operation information receiving unit 153, a display unit 154, an alarm unit 155, and a sub-alarm notification unit 156. The remote body information receiving unit 152, the remote operation information receiving unit 153, the display unit 154, the alarm unit 155, and the sub-alarm notification unit 156 are each electrically connected to the monitoring control unit 151. However, the remote body information receiving unit 152, the remote operation information receiving unit 153, the display unit 154, the alarm unit 155, and the sub-alarm notification unit 156 may each be included in the monitoring control unit 151.

[0049] The monitoring control unit 151 includes a microcontroller and executes a program pre-written to memory, etc., to drive and control the body information remote receiving unit 152, the operation information remote receiving unit 153, the display unit 154, the alarm unit 155, and the sub-alarm notification unit 156. The monitoring control unit 151 also has a storage device 157. In other words, the monitoring device 150 has a storage device 157. The functions of the storage device 157 are realized, for example, by the memory of the microcontroller mentioned above.

[0050] When the monitoring control unit 151 receives a wireless signal related to the measurement results of a worker's physical information from the physical information relay unit 120 via the physical information long-range receiving unit 152, it stores the measurement results in the storage device 157 along with the identification information of the physical information measurement sensor 110 that acquired them. In this way, the monitoring control unit 151 receives wireless signals related to the measurement results of physical information from the physical information measurement sensors 110 fixed to the helmets 100 worn by multiple workers, via the physical information relay unit 120, and stores each measurement result in the storage device 157 along with the identification information of the physical information measurement sensor 110 that acquired it.

[0051] Furthermore, the monitoring and control unit 151 determines whether each of the measurement results of the physical information of multiple workers stored in the storage device 157 is normal or abnormal. More specifically, the monitoring and control unit 151 determines whether the measurement results of the physical information of a worker wearing a helmet 100A, namely body temperature, pulse rate, blood pressure (maximum), blood pressure (minimum), blood glucose level, and blood oxygen saturation, each meet predetermined standard values ​​(acceptable ranges). The monitoring and control unit 151 then determines that the worker's physical information is normal if all of the worker's body temperature, pulse rate, blood pressure (maximum), blood pressure (minimum), blood glucose level, and blood oxygen saturation meet predetermined standard values. On the other hand, the monitoring and control unit 151 determines that the worker's physical information is abnormal (dangerous) if one or more of the worker's body temperature, pulse rate, blood pressure (maximum), blood pressure (minimum), blood glucose level, and blood oxygen saturation do not meet predetermined standard values. Similarly, the monitoring and control unit 151 determines whether the measurement results of the physical information of each worker wearing a helmet 100 other than helmet 100A are normal or abnormal.

[0052] The monitoring control unit 151 then displays the measurement results of the physical information of multiple workers stored in the storage device 157, along with the judgment results determining whether each measurement result is normal or abnormal, on the display unit 154 (display). The display unit 154 is a general display device provided on the surface of the monitoring device 150. Figure 8 is a schematic diagram showing the measurement results of the physical information of multiple workers and the judgment results determining whether each measurement result is normal or abnormal, as displayed on the display unit 154. This allows a manager responsible for managing the physical information of multiple workers to easily manage the health of workers by monitoring the physical information of workers displayed on the display unit 154. Furthermore, if there is a worker whose physical information is abnormal (dangerous), prompt action can be taken.

[0053] The alarm unit 155 has an LED lamp (not shown), an electronic sound alarm with a built-in horn that emits a warning sound, and / or a function to display warning characters on the display unit 154. The monitoring control unit 151 activates an alarm via the alarm unit 155 when it determines that a worker's physical information is abnormal (dangerous). In other words, the monitoring device 150 activates an alarm via the alarm unit 155 when it determines that the measurement result of a worker's physical information is abnormal. Here, the alarm activation includes, for example, the illumination of the LED lamp, the sounding of the electronic sound alarm, and / or the display of warning characters on the display unit 154. As a result, the monitoring device 150 can recognize the abnormality of the worker, and thus can quickly rescue the worker.

[0054] Furthermore, if the monitoring control unit 151 determines that a worker's physical information is abnormal (dangerous), the sub-alarm notification unit 156 sends a warning notification (long-distance wireless communication) to the physical information relay unit 120 attached to the helmet 100 worn by the worker. When the physical information relay unit 120 receives the wireless signal related to the warning notification from the monitoring control unit 151, it performs an alarm action via the physical information sub-alarm unit 124. Here, the alarm action may include, for example, the illumination of an LED lamp, the sounding of an electronic alarm, and / or the display of warning text on a display (not shown in the figure). This alerts the worker and helps prevent heatstroke and other related incidents.

[0055] Furthermore, when the monitoring control unit 151 receives a wireless signal related to the measurement results of worker movement information from the movement information relay unit 140 via the movement information long-distance receiving unit 153, it stores the measurement results in the storage device 157 along with the identification information of the movement information measurement sensor 130 that acquired them. In this way, the monitoring control unit 151 receives wireless signals related to the measurement results of movement information from the movement information measurement sensors 130 fixed to the helmets 100 worn by multiple workers, via the movement information relay unit 140, and stores each measurement result in the storage device 157 along with the identification information of the movement information measurement sensor 130 that acquired it. In other words, the storage device 157 can store the physical information and movement information of multiple workers.

[0056] Furthermore, the monitoring and control unit 151 determines whether each of the measurement results of the operation information of multiple workers stored in the storage device 157 is normal or abnormal. More specifically, the monitoring and control unit 151 determines whether the acceleration of helmet 100A meets a predetermined standard value. If the acceleration of helmet 100A meets the predetermined standard value, the monitoring and control unit 151 determines that the operation information of the worker is normal. On the other hand, if the acceleration of helmet 100A does not meet the predetermined standard value, the monitoring and control unit 151 determines that the operation information of the worker is abnormal (dangerous). Similarly, the monitoring and control unit 151 also determines whether the acceleration of helmets 100 other than helmet 100A is normal or abnormal.

[0057] The monitoring and control unit 151 then displays the measurement results of the operation information of multiple workers stored in the storage device 157, along with the judgment results determining whether each measurement result is normal or abnormal, on the display unit 154. Figure 9 is an overview diagram showing the measurement results of the operation information of multiple workers and the judgment results determining whether each measurement result is normal or abnormal, as displayed on the display unit 154. This allows a manager who manages the operation information of multiple workers to easily perform worker safety management by monitoring the operation information of workers displayed on the display unit 154. Furthermore, if there is a worker whose operation information is abnormal (dangerous), they can take immediate action.

[0058] Furthermore, if the monitoring control unit 151 determines that the operation information of a certain worker is abnormal (dangerous), it will activate an alarm via the alarm unit 155. In other words, if the monitoring device 150 determines that the measurement result of the worker's operation information is abnormal, it will activate an alarm via the alarm unit 155. As a result, the monitoring device 150 can immediately recognize any abnormality in the worker, allowing for prompt rescue of the worker.

[0059] Furthermore, if the monitoring control unit 151 determines that the operation information of a worker is abnormal (dangerous), it sends a warning notification (long-range wireless communication) from the sub-alarm notification unit 156 to the operation information relay unit 140 attached to the helmet 100 worn by the worker. When the operation information relay unit 140 receives the wireless signal related to the warning notification from the monitoring control unit 151, it performs an alarm operation via the operation information sub-alarm unit 144. Here, the alarm operation may include, for example, the illumination of an LED lamp, the sounding of an electronic alarm, and / or the display of warning characters on a display (not shown in the figure). This notifies the worker and workers around the worker of the danger, and enables the worker to be rescued quickly.

[0060] As described above, in this embodiment, the physical information of workers can be monitored using the measurement results from a body information measurement sensor 110, which can be easily and inexpensively attached to the helmet 100 worn by the worker, thereby enabling management of the worker's physical condition. Furthermore, by monitoring the worker's movement information using the measurement results from a motion information measurement sensor 130, which can be easily and inexpensively attached to the helmet 100 worn by the worker, falls and tumbles can be detected immediately.

[0061] <2. Variant> Although embodiments of the present invention have been described above, the present invention is not limited to the embodiments described above.

[0062] The monitoring device 150 only needs to be able to determine whether the measurement results of the worker's physical information received via the physical information relay device 120 are normal or abnormal, and / or whether the worker's operational information received via the operational information relay device 140 is normal or abnormal.

[0063] Furthermore, the elements that appeared in the above embodiments may be combined as appropriate, to the extent that no contradictions arise. [Explanation of Symbols]

[0064] 1. Worker Monitoring System 100, 100A, 100B, 100C Helmets 103 Sweat-absorbing pads 110 Body Information Measurement Sensor 120 Body Information Relay Device 130 Motion Information Measurement Sensor 140 Operation Information Repeater 150 Monitoring equipment 155 Alarm section 157 Storage device

Claims

1. A worker monitoring system that monitors the physical and movement information of workers wearing helmets, A monitoring device having a storage device capable of accumulating the physical information and movement information of the worker, A body information measurement sensor is attached to a sweat-absorbing pad that can be fitted inside the helmet worn by the worker, and contacts the worker's head to measure at least one of the worker's body information, such as body temperature, pulse rate, blood pressure, blood glucose level, and blood oxygen saturation, and transmits a wireless signal related to the measurement results. A body information relay device, which receives a wireless signal relating to the measurement results of the aforementioned body information and transmits a wireless signal to the monitoring device, A motion information measurement sensor is attached to the helmet worn by the worker, measures the acceleration of the helmet as motion information of the worker, and transmits a signal related to the measurement result. An operation information relay device, which receives a signal relating to the measurement result of the operation information, transmits a wireless signal to the monitoring device, It has, Short-range wireless communication is performed between the body information measurement sensor and the body information relay device. Short-range wireless communication is performed between the motion information measurement sensor and the motion information relay, or wired communication is performed between the motion information measurement sensor and the motion information relay. Long-range wireless communication, which has a longer communication range than short-range wireless communication, is performed between the body information relay and the monitoring device, and between the motion information relay and the monitoring device. A worker monitoring system comprising a monitoring device capable of determining whether the measurement results of the physical information received via the physical information relay are normal or abnormal, and / or whether the operation information received via the operation information relay is normal or abnormal.

2. A worker monitoring system according to claim 1, The aforementioned short-range wireless communication is a worker monitoring system that conforms to the BLE (Bluetooth Low Energy) standard.

3. A worker monitoring system according to claim 1, The aforementioned long-distance wireless communication is a worker monitoring system that conforms to the LPWA (Low Power, Wide Area) standard.

4. A worker monitoring system according to any one of claims 1 to 3, The monitoring device is a worker monitoring system that, when it determines that the measurement result of the physical information is abnormal, and / or when it determines that the measurement result of the movement information is abnormal, activates an alarm via an alarm unit.

5. A worker monitoring system according to any one of claims 1 to 3, The body information measurement sensor transmits a wireless signal relating to the measurement result of the body information once at a first predetermined time interval. The operation information measurement sensor is a worker monitoring system that transmits a signal relating to the measurement result of the operation information once at a second predetermined time that is shorter than the first predetermined time.

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