KR102073213B1 - Wearable apparatus and method for danger area guiding - Google Patents

Abstract

The present invention relates to a wearable user risk guidance device and method for increasing the reliability and utilization of the dangerous situation notification operation, and generates and outputs a biological signal by sensing at least one of a user's pulse, ECG sensor body temperature, and oxygen saturation A first sensor unit; A second sensor unit configured to generate and output an environmental signal by sensing at least one of temperature, humidity, air pressure, wind speed, air volume, light / illumination, noise, vibration, and air quality around the user; A situation inference unit that infers a user situation based on the biosignal and the environment signal; If the user's situation is inferred as a dangerous situation, generate a tactile stimulus for notifying the occurrence of the dangerous situation and checking the user's responsiveness and request a user response thereto. If the user's response is not input, the degree of the tactile stimulus is sequentially increased. A situation guide unit checking a user responsiveness based on a tactile stimulus level to which the user response is input; A situation report unit configured to calculate a degree of user's haptic risk based on the user's situation and the user's responsiveness, and notify an external device of the occurrence of a dangerous situation only when the user's haptic risk is greater than or equal to a preset value; And a wireless communication unit supporting wireless communication with the external device.

Description

Wearable user risk guidance device and method {WEARABLE APPARATUS AND METHOD FOR DANGER AREA GUIDING}

The present invention relates to a wearable user risk guidance device and method for increasing the reliability of the risk situation notification operation by further considering the degree of risk that the user actually feels in addition to the information obtained through the sensor devices.

As human civilization develops, research and work are frequently carried out in dangerous environments, such as underground, underwater, jungle, far west, and extreme regions. In addition, the work often occurs at the site of fire or radiation leakage.

In this case, there is a risk that workers may lose consciousness due to toxic gases, heat, cold, and the like. Since these hazards are difficult to identify with the naked eye, it is difficult for the worker himself to easily recognize the danger situation until the danger is reached.

In addition, even if a number of workers work together, it is difficult to quickly grasp the risks of fellow workers due to the lack of visibility due to smoke or darkness. For these reasons, workers who work in manholes, fire sites, nuclear reactors, etc. often lose their lives.

In order to prevent such accidents, various safety devices may be put in place, but safety devices may not always be used due to limitations in work speed or working environment. Therefore, the need for a technology that can prevent the risk by checking the user's condition and surrounding environment at the risk site has emerged.

Accordingly, in Korean Patent No. 10-1422234, it recognizes biometric information including heartbeat, pulse, body temperature, and vibration, and has a GPS receiving function for receiving a current position from a notification device and a mobile phone. Coupled with the ring structure described above, and configured to have a bracelet-type notification device to the user to wear on the wrist, if any one of the biometric information exceeds a preset reference value preset guardian We proposed an emergency notification system using biometric and GPS information to promptly contact the hospital.

However, in Korean Patent No. 10-1422234, if any one of the biometric information is more than a predetermined reference value, the unconditional notification of the occurrence of an emergency situation has a disadvantage in that the user does not consider the degree of danger actually felt at all. In other words, the user's physical condition may occur frequently when one of the heartbeat, pulse, body temperature, and vibration have an abnormal value due to the normal or external environment of the user, but this may not be considered at all, and thus the reliability of the notification of the dangerous situation may be reduced. It has a problem of deterioration.

In order to solve the above problems, the present invention is to provide a wearable user risk guidance apparatus and method for improving the reliability of the operation by performing the risk situation notification operation in consideration of the degree of risk actually felt by the user. do.

In addition, the present invention provides a wearable user risk guidance device and method for communicating with adjacent wearable user risk guidance devices to determine whether a dangerous situation has occurred in a corresponding region, and to perform a notification operation accordingly.

The object of the present invention is not limited to the above-mentioned object, and other objects that are not mentioned will be clearly understood by those skilled in the art from the following description.

As a means for solving the above problems, the wearable user risk guide device implemented in a form that can be worn on the user's body according to an embodiment of the present invention, sensing at least one of the user's pulse, electrocardiogram sensor body temperature, and oxygen saturation A first sensor unit generating and outputting a biosignal; A situation inference unit that infers a user situation based on the biosignal; If the user's situation is inferred as a dangerous situation, generate a tactile stimulus for notifying the occurrence of the dangerous situation and checking the user's responsiveness and request a user response thereto. If the user's response is not input, the degree of the tactile stimulus is sequentially increased. A situation guide unit checking a user responsiveness based on a tactile stimulus level to which the user response is input; A situation report unit configured to calculate a degree of user's haptic risk based on the user's situation and the user's responsiveness, and notify an external device of the occurrence of a dangerous situation only when the user's haptic risk is greater than or equal to a preset value; And a wireless communication unit supporting wireless communication with the external device.

The situation guide may further include a function of promptly informing the user of the occurrence of the dangerous situation when the risk control center notifies the occurrence of the dangerous situation.

The situation guide may further include a function of promptly informing the user of the occurrence of the dangerous situation when more than a predetermined ratio among other wearable user risk guide devices located around the user simultaneously informs the occurrence of the dangerous situation.

The wearable user risk guidance device further includes a second sensor unit configured to generate and output an environmental signal by sensing at least one of temperature, humidity, air pressure, wind speed, air volume, light / illumination, noise, vibration, and air quality around the user. The situation inference unit may further include a function of inferring a user situation by further considering the environment signal.

As a means for solving the above problem, the wearable user risk guidance method according to another embodiment of the present invention, comprising the steps of inferring the user situation based on the user's physical state and the environment surrounding the user; When the user's situation is inferred as a dangerous situation, the user generates a tactile stimulus for reporting a dangerous situation occurrence and checks the user's responsiveness and requests a user response thereto. If the user's response is not input, the user's response is sequentially increased. step; Checking user responsiveness based on a tactile stimulus level to which the user response is input; And calculating a user's haptic risk level based on the user's situation and the user's responsiveness, and notifying an external device of the occurrence of a dangerous situation only when the user's haptic risk degree is greater than or equal to a preset value.

The method may further include immediately informing the user of the occurrence of the dangerous situation when the risk control center notifies the occurrence of the dangerous situation.

The method may further include recognizing all of the other wearable user risk guide devices located near the user when the risk situation is notified by another wearable user risk guide device; Checking the operation state of the recognized wearable user risk guide device and calculating a proportion of the device notifying occurrence of the dangerous situation; And immediately informing the user of the occurrence of the dangerous situation only when the calculation ratio is equal to or greater than a preset ratio.

In the present invention, it is possible to confirm the possibility that the user is in a dangerous situation in consideration of the user's physical situation and the surrounding environment, and to perform the dangerous situation notification operation only after further confirming the degree of danger felt by the user, thereby improving the reliability of the dangerous situation notification operation. It allows you to.

The adjacent wearable user's risk guidance devices communicate with each other to determine whether a dangerous situation has occurred in a corresponding region and to perform a notification operation accordingly, thereby maximizing device utilization.

1 is a block diagram of a user risk guidance system according to an embodiment of the present invention.
2 is a block diagram of a wearable user risk guidance apparatus according to an embodiment of the present invention.
3 and 4 illustrate an embodiment of a haptic device according to an embodiment of the present invention.
5 and 6 are views for explaining a tactile stimulation method using a haptic device according to an embodiment of the present invention.
7 is a view for explaining a user risk guidance method using a wearable user risk guidance apparatus according to an embodiment of the present invention.
8 is a view for explaining a user risk guidance method using a wearable user risk guide device according to another embodiment of the present invention.

The objects and effects of the present invention and the technical configurations for achieving them will be apparent with reference to the embodiments described below in detail with the accompanying drawings. In describing the present invention, when it is determined that a detailed description of a known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

Terms to be described later are terms defined in consideration of functions in the present invention, and may be changed according to intentions or customs of users or operators.

However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various forms. The present embodiments are merely provided to complete the disclosure of the present invention and to fully inform the scope of the invention to those skilled in the art, and the present invention is defined by the scope of the claims. It will be. Therefore, the definition should be made based on the contents throughout the specification.

1 is a block diagram of a user risk guidance system according to an embodiment of the present invention.

Referring to FIG. 1, the user risk guidance system of the present invention includes a plurality of wearable user risk guidance devices 100, a risk control center 200, and the like, to detect or notify a user risk in a user wearable manner. .

In the present invention, the term "risk" refers to all situations other than those that the user has set as normal. In particular, in the present invention, the user can create and register the scenarios for each situation in advance, and when the data having values outside the previously registered situational scenarios are obtained, it can be inferred that the current situation is a dangerous situation. Make sure

Wearable user risk guidance device 100 is implemented in a form that can be worn on the user's body, such as helmets, belts, vests, bracelets, gloves, etc., minimizing user behavior restrictions while real-time checking whether the user is in danger, other wearable users Notify the hazard guidance device 100 and / or the hazard control center 200.

In particular, the wearable user risk guide device 100 of the present invention checks whether a dangerous situation occurs in consideration of the user's physical state and the environment around the user, and notifies the user, and reconsiders the user's haptic risk level in consideration of the user's response state. To calculate. The risk situation notification operation may be rapidly increased by reporting the occurrence of the dangerous situation to the other wearable user risk guide device 100 and / or the risk control center 200 only when the user haptic risk level is equal to or greater than a preset value. do.

In addition, the wearable user risk guide device 100 of the present invention may communicate with a wearable user risk guide device located adjacent to the self wearable user risk guide device to determine whether a dangerous situation has occurred in a corresponding region and perform a user guide operation accordingly. That is, the short-range communication method identifies the wearable user's risk guidance device located near the user and checks the proportion of devices that notify the occurrence of the dangerous situation. If the wearable user's risk guidance device over the preset ratio notifies the occurrence of the dangerous situation simultaneously, it confirms that the dangerous situation such as gas leakage, avalanche, earthquake, etc. has occurred in the relevant area, and unconditionally unconditionally regardless of the user's situation Perform a notification operation.

The risk control center 200 monitors each operation of the wearable user risk guidance device 100 to identify a user at risk, and transmits user information to a related organization, so that the user at risk may take appropriate follow-up measures. To be provided.

In addition, the risk control center 200 according to the present invention may identify a dangerous situation occurrence area based on each operation state of the wearable user risk guidance device 100, and apply the control unit 100 to all of the wearable user risk guidance devices 100 located in the corresponding area. By notifying the occurrence of a dangerous situation, users can be released from the dangerous area as soon as possible. In other words, it is necessary to provide a function to check whether a dangerous situation occurs and to guide the user on a local basis.

2 is a block diagram of a wearable user risk guidance apparatus according to an embodiment of the present invention.

As shown in FIG. 2, the user risk guidance apparatus 100 of the present invention includes the first and second sensor units 10 and 20, the situation inference unit 30, the situation guide unit 40, and the situation report unit ( 50), a user interface 60, a GPS device 70, a wireless communication unit 80, and the like.

Hereinafter, the function of each component will be described in more detail.

The first sensor unit 10 includes at least one of a pulse sensor, an electrocardiogram sensor, a temperature sensor, and an oxygen saturation test sensor. The first sensor unit 10 senses at least one of a user's pulse, an electrocardiogram sensor body temperature, and an oxygen saturation level. Create and print That is, information about the physical state of the user is obtained and provided.

The second sensor unit 20 includes at least one of a temperature sensor, a humidity sensor, a barometric pressure sensor, a side wind detection sensor, an illuminance sensor, and a vibration sensor, through which the temperature, humidity, air pressure, wind speed, air volume, light / At least one of illuminance, noise, vibration, and air quality is sensed to generate and output an environmental signal. That is, to obtain and provide information on the environmental state around the user.

The situation inference unit 30 includes scenarios for various situations that a user may encounter, and analyzes the biosignals and environmental signals acquired through the first and second sensor units 10 and 20 with reference to the user. Infer the current situation.

For example, scenarios such as a climbing situation, a diving situation, a running situation, and a sleep situation may be provided, and each scenario may include environmental information that can be obtained for each detailed situation (ie, temperature, humidity, barometric pressure, wind speed, wind volume, light / Information about illuminance, noise, vibration, and air quality) and user body information (ie pulse, ECG body temperature, and oxygen saturation).

When the situation inference unit 30 infers that the user is in a dangerous situation, the situation guide unit 40 generates a tactile stimulus for notification of dangerous situation occurrence and user responsiveness, and then requests a user response thereto. If it is not input, the degree of tactile stimulation is sequentially increased, and the user's response is checked based on the input tactile stimulus.

The situation guide unit 40 of the present invention performs a dangerous situation occurrence notification operation through a tactile stimulus, which is a method capable of performing a user notification operation regardless of visual and hearing impairment in the case of tactile stimulation. This is because it has a characteristic of having a high responsiveness compared to auditory stimulus operation. However, if the user state is a normal state, the user may have a high responsiveness to the tactile stimulus generated by the situation guide unit 40, but may have a relatively low responsiveness when the user is in danger and the cognitive ability is degraded. Accordingly, the situation guide unit 40 of the present invention generates a minimum tactile stimulus that can be perceived by a user in a normal state, and notifies a user's risk. If the user's response is not input, the situation guide unit 40 sequentially measures the tactile stimulus until the user's response is input. The user response is checked based on the input tactile stimulus level.

In addition, the situation guide unit 40 of the present invention is a wearable user risk guidance device when the risk control center 200 notifies the occurrence of the dangerous situation and the wearable user risk guidance device of a predetermined ratio among the wearable user risk guidance device 100 located around the user In case of simultaneous notification of the occurrence of the dangerous situation, the user is immediately notified of the occurrence of the dangerous situation regardless of the user's situation. That is, through the collaboration with the risk control center 200 or the wearable user risk guide device 100 located around the user, it is possible to additionally perform a risk situation notification operation for each region.

The situation report unit 50 calculates a user's perceived risk based on the user's situation and the user's responsiveness. The risk situation occurrence report includes information on at least one of user profile information, location information of the user risk guidance device, user context information, user body information, and user experience risk level only when the user experience risk level is greater than or equal to a preset value. The information is generated to report the occurrence of the dangerous situation to the risk control center 200 and / or the other wearable user risk guide device 100.

Of course, when the user directly enters the occurrence of the risk situation, the notification operation to the risk control center 200 or other wearable user risk guidance device 100 may be immediately performed without the user's diminishing degree of risk. will be.

The user interface 60 includes a haptic device 600 having at least one haptic actuator, through which the haptic notification information generated by the situation guide 40 can be tactilely output. In addition, a data input device such as a touch screen, a keypad, a microphone, and the like may be further provided, thereby allowing a user to obtain a user input value generated in response to the dangerous situation notification operation and to transmit it to the situation guide unit 40.

In some cases, the user interface 60 further includes data input / output devices such as a touch screen, a button, a speaker, and the like, and visualizes and / or audibly outputs dangerous situation notification information or outputs a dangerous situation notification operation. It is also possible to obtain a corresponding feedback value. In other words, the user who has received the risk notification through tactile stimulation can give feedback on the touch screen and buttons to build a more accurate risk notification system. For example, when a user receives a tactile stimulus requesting confirmation of a dangerous situation, the user may press the button once and ignore it, or may press the button twice to indicate that the actual dangerous situation.

In addition, when a specific situation such as a cardiac arrest situation is expected that the actual user may not be able to identify the risk, the situation is inferred through the situation reasoning unit 30, and immediately without a user feedback checking procedure. The risk control center 200 or other wearable user risk guidance device 100 may be notified of the current danger situation.

The GPS device 70 obtains a position value of the user wearing the wearable user risk guide device, that is, the wearable user risk guide device, and provides the position value to the situation report unit 50.

The wireless communication unit 80 may support wireless communication between the wearable user risk guide device and an external device, that is, the risk control center or another wearable user risk guide device. However, the wireless communication operation may be performed through the short distance communication technology with the other wearable user risk guidance device 100 through the long distance communication technology with the risk control center 200.

3 and 4 illustrate an embodiment of a haptic device according to an embodiment of the present invention.

Referring to FIGS. 3 and 4, the haptic device 600 of the present invention covers the entire region of the device body 610 and the device body 610 made of cloth, which are implemented in the form of an arm band, a wrist watch, a patch, and the like. A plurality of haptic actuators 620 arranged in a two-dimensional matrix form or arranged in a line, and a signal transmission unit 630 for transmitting each of the signals applied from the situation guide unit 40 to the plurality of haptic actuators 620. The signal transmitter 630 may further include a signal applied through the first signal line 631 and the first signal line 631 to electrically connect the situation guide 40 and the haptic device 600. A signal processing device 632 for selectively transmitting to at least one of the plurality of haptic actuators 620, and a plurality of second signal lines 633 electrically connecting between the signal processing device 632 and the plurality of haptic actuators 620. And the like.

The haptic device 600 implemented as described above may notify the user of various dangerous situations in a tactile stimulus manner by variously changing vibration positions, intensities, and patterns of the plurality of haptic actuators 620.

For example, when the haptic device includes a plurality of haptic actuators arranged in a line, the dangerous situation notification operation may be performed in the following manner.

First, when a user wants to confirm the risk, the plurality of haptic actuators 620 may be driven as follows.

1) As shown in (a) of FIG. 5, one haptic actuator 620 vibrates periodically while gradually increasing the vibration intensity.

2) As shown in (b) of FIG. 5, the haptic actuators 620 vibrate one by one sequentially, and the tactile stimulus rotates the arms in a circular manner, so that the vibration intensity gradually increases each time the wheel is rotated).

3) By gradually decreasing the time interval for sequentially vibrating the haptic actuator 620 while maintaining the strength of the vibration so that the rotational speed in which the tactile stimulus returns to the circular gradually increases.

4) Perform the operation of 2) and 3) at the same time so that the motor speed increases and the rotation speed becomes faster.

When the risk is confirmed to be real and the user is notified, the plurality of haptic actuators 620 may be driven as follows.

1) The intensity of vibration or the haptic actuators 620 vibrate sequentially to adjust the rotation speed depending on the severity of the risk.

2) to change the vibration pattern of the haptic actuators 620 according to the type of danger (ie, fire, explosion, chemical spill, etc.). For example, changing the position of the haptic actuator 620 that vibrates or modulates or vibrates the same as the operation of 1) (ie, right, left, up, down, etc.), or the motors simultaneously turn on vibration. Change this cycle with / off.

3) Changes the tactile stimulus as shown in 2 depending on the user's reaction (ie power off, evacuation, use of oxygen mask, etc.)

In addition, when the haptic device is provided with a haptic actuator disposed in a two-dimensional matrix form, the risk situation notification operation may be performed in the following manner.

1) As shown in (a) of FIG. 6, the haptic actuator 620 is sequentially vibrated in up, down, left, and right directions to display the front, the back, the sides, and the like.

2) As shown in (b) of FIG. 6, the front, rear, and sides of the haptic actuators 620 disposed in two dimensions can be displayed to transmit the evacuation direction and the like (see FIG. 6A). ).

3) In addition to the above examples, as shown in (c) of FIG. 6, the vibration pattern for informing the user of the type of risk, the reaction to be taken by the user, and the like may be further diversified in two dimensions. something to do.

As described above, the haptic device of the present invention is implemented in a form that can be worn on the wrist or cuff, and has a plurality of haptic devices arranged around the wrist or cuff at regular intervals, thereby providing various types of tactile stimulation operations. Make it work.

7 is a view for explaining a user risk guidance method using a wearable user risk guide device according to an embodiment of the present invention, which is a case of checking whether a user risk situation occurs based on a user's physical state and an environment surrounding a user It is about.

First, when the user wears the wearable user risk guide device 100 and activates the wearable user risk guide device 100, the wearable user risk guide device 100 uses the first and second sensor units 10 and 20 to sense the user's physical state and the surrounding environment of the user. Checking and analyzing the status in real time, the user begins to infer the situation (S1).

As a result of the inference of step S1, if it is determined that the user is in a dangerous situation (S2), the user is notified of the occurrence of a dangerous situation and at the same time generates a tactile stimulus for checking the responsiveness of the user, and then requests a user response thereto. (S3).

If the user does not respond to the tactile stimulus operation of step S3 (S4), after determining that the user is in danger and the cognitive deterioration phenomenon occurs, increase the tactile stimulus degree and request the user response again (S6). . That is, in the present invention, steps S3 to S5 are repeatedly performed while gradually increasing the level of tactile stimulation until a user response is input.

However, if the user does not respond even though the tactile stimulus degree is the maximum value, it is determined that the user's cognitive ability is seriously degraded and the external device is immediately notified of the occurrence of a dangerous situation (S5).

On the other hand, if a user response is input (S4), the user's sensation risk is calculated based on the tactile stimulus level at which the user's response is generated (S7), and the user's current situation generates dangerous situation occurrence information on the external device immediately. To provide (S8).

8 is a view for explaining a user risk guidance method using a wearable user risk guide device according to another embodiment of the present invention, which relates to a case where a user is notified of an occurrence of a user danger situation from an external device.

If the external device generates dangerous situation occurrence information, the wearable user risk guide device 100 first checks who is the subject of the dangerous situation (S11).

As a result of checking in step S11, if the subject of the dangerous situation is another wearable user risk guide device (S12), the wearable user risk guide device 100 may identify all of the wearable user risk guide devices located around the user. That is, it is located in the same area as the wearable user risk guide device 100, so as to grasp all of the wearable user risk guide device existing within the short-range communication range (S13).

The operation state of all the wearable user risk guidance apparatuses identified through the step S13 is checked, and the ratio of the device notifying the occurrence of the dangerous situation is calculated (S14).

When the calculation rate is greater than or equal to the preset ratio (S15), the user is immediately notified of the occurrence of the dangerous situation regardless of the user's situation (S16). In other words, through collaboration with other wearable user risk guidance devices, check whether there is a large amount of dangerous situation in the area where the user is currently located, and in case of a dangerous situation, notify the user of the dangerous situation immediately so that the user can leave the area. .

On the other hand, if the result of the check in step S11, the subject of the dangerous situation is another risk control center (200) (S17), without causing a separate analysis work to notify the user of the dangerous situation unconditionally (S18). That is, a government agency or a local administrator determines that the situation where the user is currently located in the area where the user is currently located is through the risk control center 200, and the risk situation is generated so that the user can leave the area. Be notified immediately.

The above description is merely illustrative of the technical idea of the present invention, and those skilled in the art to which the present invention pertains may make various modifications and changes without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention but to describe the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The protection scope of the present invention should be interpreted by the following claims, and all technical ideas within the scope equivalent thereto should be construed as being included in the scope of the present invention.

Claims (7)

In the wearable user risk guidance device implemented in a form that can be worn on the user's body,
A first sensor unit configured to generate and output a biosignal by sensing at least one of a pulse, an ECG sensor body temperature, and an oxygen saturation of the user;
A situation inference unit that infers a user situation based on the biosignal;
When the user's situation is inferred as a dangerous situation, the user generates a tactile stimulus for notifying the dangerous situation occurrence and checking the user's responsiveness and requests a user response thereto. If the user's response is not input, the degree of the tactile stimulus is sequentially increased. A situation guide unit checking a user responsiveness based on a tactile stimulus level to which the user response is input;
A situation reporter configured to calculate a degree of user's haptic risk based on the user's situation and the user's responsiveness, and notify an external device of occurrence of a dangerous situation only when the user's haptic risk is greater than or equal to a preset value; And
Wearable user risk guidance device including a wireless communication unit for supporting wireless communication with the external device. According to claim 1, wherein the situation guide portion
Wearable user risk guidance device, if the risk control center notifies the occurrence of the dangerous situation, the user of the wearable user, characterized in that it further comprises a function to immediately inform the user. According to claim 1, wherein the situation guide portion
Wearable user risk guidance device further comprises a function to immediately notify the user of the occurrence of the dangerous situation when more than a predetermined ratio among the other wearable user risk guidance devices located around the user at the same time to notify the occurrence of the dangerous situation . According to claim 1,
And a second sensor unit configured to generate and output an environmental signal by sensing at least one of temperature, humidity, air pressure, wind speed, air volume, light / illumination, noise, vibration, and air quality around the user.
The situation reasoning unit
The wearable user risk guidance device further includes a function of inferring a user situation by further considering the environment signal. Inferring the user situation based on the user's physical condition and the environment surrounding the user;
When the user's situation is inferred as a dangerous situation, the user generates a tactile stimulus for notifying the dangerous situation occurrence and checking the user's responsiveness and requests a user response thereto. If the user's response is not input, the user's response is sequentially increased. step;
Checking user responsiveness based on a tactile stimulus level to which the user response is input; And
And calculating a user's haptic risk level based on the user's situation and the user's responsiveness, and notifying an external device of occurrence of a dangerous situation only when the user's haptic risk level is greater than or equal to a preset value. The method of claim 5,
If the risk control center notifies the occurrence of the dangerous situation, wearable user risk guidance method further comprising the step of promptly notifying the user of the occurrence of the dangerous situation. The method of claim 5,
Recognizing the occurrence of a dangerous situation from another wearable user risk guide device, recognizing all of the other wearable user risk guide devices located around the user;
Checking the operation state of the recognized wearable user risk guide device and calculating a proportion of the device notifying occurrence of the dangerous situation; And
And informing the user of the occurrence of the dangerous situation only when the calculation ratio is greater than or equal to a preset ratio.

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