Work stress monitoring and physical interaction with stress data system

Abstract

The application discloses a working pressure monitoring and physical interaction system of pressure data, comprising: first, obtaining the tomato clock configuration information of a user, collecting the physiological signals of the user through a ring in the process that the user concentrates on work, processing the collected original data by using an algorithm, and calculating the pressure condition of the user, wherein the pressure condition comprises a real-time calculation pressure value of the user and a pressure average value in the tomato clock. The real-time pressure condition is mapped to the transverse lamp strip of the device base. At the end of each tomato clock, the user is reminded of the completion of the tomato clock by using visual and audible signals, and the pressure data in the time period is physically realized. By using the application, the user can improve the work efficiency and concentration, record the work duration, and timely pay attention to and adjust the working pressure and observe the pressure condition change under different work tasks. A new idea is provided for pressure management and intelligent office.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of human-computer interaction, and particularly relates to a work pressure monitoring and pressure data physical interaction system. BACKGROUND

[0002] Chronic stress has become a major problem in contemporary society, especially among the working population. The increase in chronic stress brings numerous psychological and physiological health risks, including anxiety, depression, immune disorders, and cardiovascular problems. Therefore, effective management of negative stress is crucial for overall health.

[0003] Measuring biological data related to stress and providing feedback to users has been recognized as helpful to promote self-analysis and reflection on daily experiences, so as to timely discover and manage stress sources. Therefore, biological data feedback systems focusing on stress-related indicators have received extensive attention.

[0004] At present, the data feedback system based on stress mainly relies on visual feedback. For example, ClockViz visually presents different levels of collective stress through static or dynamic superimposed projection. Affective Health encourages stress management by visualizing users' biological data in a spiral design. However, most of the current biological data feedback is limited to screen display, usually requiring complex equipment and professional settings, making it difficult to promote application in daily office environment. In contrast, integrating data presentation into the physical world and utilizing the tangible properties of entities can better arouse people's multi-sensory participation. Data physicalization representation can enhance user interaction with data, making data more accessible.

[0005] In addition, the Pomodoro timer as a time management tool helps improve work efficiency and concentration by dividing work time into multiple focused time periods and rest periods. However, existing Pomodoro timer tools mostly only prompt the start and end of the Pomodoro timer, lacking monitoring and feedback mechanisms for users' physiological and psychological states, making it difficult to effectively manage and regulate work stress.

[0006] The design of data physicalization based on stress-related indicators embedded in the work space still needs to be explored. SUMMARY

[0007] The purpose of the embodiments of the present application is to provide a work pressure monitoring and pressure data physical interaction system to solve the technical problems of insufficient intuitiveness of the pressure data feedback system, insufficient data interaction, and lack of monitoring and feedback mechanisms for users' physiological and psychological states in the existing Pomodoro timer tools in the related art.

[0008] According to the embodiments of the present application, a work pressure monitoring and pressure data physical interaction system is provided, comprising:

[0009] a heart rate data collection module comprising a PPG sensor, which can be wound and fixed on the index finger of the non-dominant hand of the user to be detected, for collecting heart rate data of the user to be detected;

[0010] a stress state and time calculation module connected with the heart rate data collection module, for calculating the real-time stress value HRV of the user to be detected according to the collected heart rate data n , counting the tomato clock and the rest time, and calculating the average stress value in the tomato clock at the end of each tomato clock and the stress level;

[0011] a tomato clock setting module connected with the stress state and time calculation module, comprising a user interface for receiving the working time and rest time parameters of the tomato clock set by the user and storing these parameters in the memory;

[0012] a tomato clock reminding and stress feedback module controlled by the data physicalization control module, comprising twelve test tubes and a micro sound, and each test tube is equipped with a ring-shaped light belt at the bottom, and the average stress value in the tomato clock and the stress level, wherein: the stress level of the user in the tomato clock is represented by the color of the liquid column, and the stress size is represented by the height of the liquid column in the test tube, and the color of the ring-shaped light belt controls the color change of the liquid column, in addition, during the process of raising the liquid column, the micro sound will play the corresponding audio according to the stress level to physically present the stress level in the form of hearing to indicate the end of the tomato clock, similarly, after the rest time is over, the micro sound will play a reminding audio;

[0013] a real-time stress feedback adjustment module controlled by the data physicalization control module, comprising a horizontal light belt placed on the base, which physically presents the calculated real-time stress value in the form of vision, and guides to adjust the real-time stress level of the user when the user is in a high stress level, wherein: the real-time stress state of the user is directly represented by the color of the horizontal light belt of the base, and the high stress level adjustment of the user is guided by the flashing of the horizontal light belt of the base;

[0014] a data physicalization control module driven by the calculation results of the stress state and time calculation module, which realizes the height of the liquid column, the color change of the ring-shaped light belt and the horizontal light belt of the base through the circuit control of the electronic elements, so as to control the tomato clock reminding and stress feedback module and the real-time stress feedback adjustment module.

[0015] Optionally, the real-time stress value HRV n and the average stress value in the tomato clock is evaluated using heart rate variability, the real-time stress value HRV nThe standard deviation of the heart rate interval (SDNN) is calculated based on the heart rate interval, and the smaller the SDNN value, the greater the stress of the user. The NN interval is the interval between a normal heartbeat and the next normal heartbeat.

[0016] The real-time stress value HRV n The calculation formula is as follows:

[0017] HRV n = ((w-1) x HRV n-1 + |IBI n - IBI avg ||) / w

[0018]

[0019] Wherein, w is the selected heart beat moving window size; IBI n represents the time interval between the nth heartbeat and the (n-1)th heartbeat; IBI avg represents the average value of the heart rate interval in the selected window.

[0020] The average stress value in the tomato clock The calculation formula is as follows:

[0021]

[0022] Wherein, represents the average value of all HRV values in the tomato clock; HRV k represents the heart rate variability score obtained by the kth measurement in the tomato clock; N represents the total number of HRV values in the tomato clock, which depends on the measurement frequency and the number of heartbeats in the tomato clock.

[0023] Optionally, the stress level of the user in the tomato clock is visually represented as a liquid column color:

[0024] The stress level of the user in the tomato clock is divided into five levels, and each level corresponds to a color; under the same stress level, The smaller the stress level, the greater the stress of the user, and the higher the saturation of the color; the color of the liquid column is controlled by the color of the ring-shaped light belt, and when the user is in the first stress level, the ring-shaped light belt is red. The intensity formula of red color can be expressed as:

[0025]

[0026] RGB r = 255

[0027]

[0028] RGB b = 0

[0029] When the user is at the second stress level, the annular light belt is red-orange, and the intensity formula of red-orange can be expressed as:

[0030]

[0031] RGB r = 255

[0032]

[0033] RGB b = 0

[0034] When the user is at the third stress level, the annular light belt is orange-yellow, and the intensity formula of orange-yellow can be expressed as:

[0035]

[0036] RGB b = 0

[0037] When the user is at the fourth stress level, the annular light belt is yellow-green, and the intensity formula of yellow-green can be expressed as:

[0038]

[0039] RGB g = 255

[0040] RGB b = 0

[0041] When the user is at the fifth stress level, the annular light belt is green, and the intensity formula of green can be expressed as:

[0042] RGB r = 0

[0043] RGB g = 255

[0044] RGB b = 0

[0045] Wherein, intensity represents the saturation of the color, RGB r , RGB g , RGB b respectively represent the intensity values of the red, green and blue components of the light color, stressBar k represents the threshold value of different color levels.

[0046] ​Optionally, the physical and visual presentation of the stress level is a pressure gauge:

[0047] When the user is in a low stress level, the audio control module will select to play audio files of a celebratory nature to celebrate the end of the tomato clock period, enhancing the user's sense of achievement and pleasure; when the user is in a medium or high stress level, the audio control module will select to play music of a relaxing nature, reminding the user to relax himself properly to reduce stress and avoid excessive fatigue; the audio changes synchronously with the height of the liquid column, ensuring the synchronization of the auditory effect and the visual effect.

[0048] Optionally, the stress level of the user in the tomato clock is represented by the height of the liquid column in the test tube:

[0049] The height of the liquid column is inversely proportional to the average stress of the user in the tomato clock The greater the stress the user bears, the higher the water level in the corresponding test tube; in order to further amplify the pressure change at high and medium stress levels, so that the user can more clearly perceive the fluctuations in his own stress, the response of the liquid column height to the pressure change is more significant at high and medium stress levels; the relationship between the height of the liquid surface H in the liquid column and the average stress in the tomato clock is expressed as:

[0050]

[0051] wherein HRV min1 , HRV min2 , HRV min3 represent the minimum value of the user's HRV in different stress intervals, HRV max1 , HRV max2 , HRV max3 represent the maximum value of the user's HRV in different stress intervals, H min1 , H min2 , H min3 represent the minimum value of the liquid surface height in different intervals, H max1 , H max2 , H max3 represent the maximum value of the liquid surface height.

[0052] Optionally, the user's real-time stress state is visually represented by the color of the base transverse light strip:

[0053] If the user's real-time stress is at a high stress level, the module will control the base transverse light strip to be purple, otherwise, it is classified as low stress or no stress, and the module will control the base transverse light strip to be blue.

[0054] The user's real-time stress adjustment is guided by the flashing of the base transverse light strip, which is specifically:

[0055] If the user's real-time stress level is high, the horizontal light strip on the base will flash at a fixed frequency to guide the user to take deep breaths, thereby regulating the user's stress level; when the user's real-time stress level is low or no stress, the horizontal light strip on the base will stop flashing.

[0056] Optionally, the real-time pressure status HRV n and the pressure level within the Pomodoro timer The determination method is as follows:

[0057] If the user's HRV n value or If the pressure level is less than the first threshold, it is determined to be a high pressure level; if it is greater than or equal to the first threshold and less than the second threshold, it is determined to be a low pressure level; if it is greater than or equal to the second threshold, it is determined to be a no-pressure level, where the first threshold is less than the second threshold.

[0058] Optionally, the data physical control module includes: a water flow control module, a lighting control module, and a sound screen control module.

[0059] Optionally, the water flow control module includes: a water storage tank, a water supply pump, a diverter, a solenoid valve, and a return water pump. The water supply pump is fixed to the bottom of the water storage tank and is connected to the diverter via a connecting water pipe. The diverter has 13 outlets, each connected to one of 13 solenoid valves via a connecting water pipe. Twelve of these solenoid valves are connected to the test tubes of the Tomato Clock reminder and pressure feedback module via connecting water pipes, and the thirteenth solenoid valve is connected to the inlet of the return water pump. The outlet of the return water pump is connected to a return water pipe. The water storage tank, the water supply pump's inlet pipe, the water supply pump, the diverter solenoid valve, the return water pump, and the return water pipe constitute a circulating water circuit.

[0060] Optionally, the water supply control logic of the water flow control module is as follows:

[0061] Based on the average pressure value within the Pomodoro timer period transmitted by the Pomodoro timer reminder and pressure feedback module, the required water supply time T is calculated to ensure that the water supply meets the system's needs. Then, a start signal is simultaneously sent to the water supply pump and the solenoid valve connected to the target controlled test tube. The pump starts supplying water, and the solenoid valve opens to allow water to flow into the system. During the water supply process, the control module monitors the changes in water flow and pressure values ​​in real time to ensure the stability and accuracy of the water supply process. If any abnormality occurs, the controller will adjust the water supply time or shut down the water supply equipment in a timely manner. When the water supply time T is reached, the control module immediately sends a shut-off signal to the water supply pump and the solenoid valve to stop the water supply and close the solenoid valve, completing one water supply cycle. The water flow control module can recover the water in the test tube to the water storage tank through water flow backflow.

[0062] The calculation method of the water supply time T is:

[0063]

[0064] Wherein, T is the water supply time required for the water pump and the electromagnetic valve to operate, V is the required water volume, r is the radius of the bottom surface of the test tube, and Q is the constant water pumping flow of the water pump;

[0065] The water flow backflow control logic of the water flow control module is:

[0066] The controller sends a start signal to the backflow water pump and opens the backflow electromagnetic valve to pump water back to the water storage tank. During the backflow process, the controller continuously monitors the water volume and pressure value in the system to ensure the smooth progress of the backflow process. If an abnormality is detected during the backflow process, the control module will automatically adjust the backflow rate or suspend the backflow operation. When the water volume in the system returns to the preset initial level, the controller will send a close signal to the backflow water pump and the electromagnetic valve to stop the backflow water pump and close the electromagnetic valve, completing the backflow process.

[0067] The logic of the audio control module is:

[0068] According to the average pressure value in the Pomodoro clock transmitted by the Pomodoro clock reminder and pressure feedback module, the audio control module selects the corresponding audio file from the preset audio file library and sends an audio playback instruction to the micro sound, adjusts the audio playback in real time to match the change of the liquid column height. The audio files in the audio file library are divided into celebration music and relaxation music.

[0069] If a rest time termination signal is received from the Pomodoro clock reminder and pressure feedback module, an audio playback instruction is sent to the micro sound to play the termination rest audio.

[0070] The logic of the light control module is:

[0071] According to the average pressure value and real-time pressure value in the Pomodoro clock transmitted by the Pomodoro clock reminder and pressure feedback module, the corresponding pressure level is calculated, and the light color corresponding to the pressure level is determined. The corresponding light strip changes color.

[0072] The technical scheme provided by the embodiment of the application can include the following beneficial effects:

[0073] From the above embodiments, it can be seen that the application adopts a heart rate data acquisition module containing a PPG sensor to measure physiological data; adopts a Pomodoro clock setting module to receive user-set Pomodoro clock working time and rest time parameters; calculates the real-time stress value of the detected user through a stress state and time calculation module, calculates the average stress value in each Pomodoro clock, sets the stress level evaluation threshold in the Pomodoro clock, and designs the mapping relationship between the stress level and the feedback mode in the Pomodoro clock, to form a Pomodoro clock reminding and stress feedback module; sets the real-time stress state evaluation threshold, designs the mapping relationship between the real-time stress state evaluation threshold and the feedback mode, and the stress regulation guidance, to form a real-time stress feedback regulation module. Through physical visual elements and auditory elements, abstract stress data is converted into tangible form: the Pomodoro clock is used to help users improve work efficiency, and also has a monitoring and feedback mechanism for user physiological and psychological state. At the end of each Pomodoro clock cycle, the user can intuitively understand his own stress condition through visual and auditory signals, and observe and analyze the stress changes under different tasks through the physical form of real-time data. This design combined with the Pomodoro clock enables the user not only to focus on work and improve work efficiency, but also to pay attention to his physical and mental health state in a timely manner; the real-time feedback mode of one-to-one correspondence between the stress state, stress size, and stress regulation guidance and the physical elements of the physical device overcomes the technical problems that the stress data feedback system is not intuitive enough and the data interaction is not strong enough, improves the user's perception experience of the real-time stress state of the individual and the stress state in different Pomodoro clocks during the work process, so that the user can intuitively perceive and manage his own stress level; at the same time, with the help of the physical device, a novel and interesting real-time guided breathing process is designed, thereby achieving the technical effect of regulating stress.

[0074] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the application. BRIEF DESCRIPTION OF DRAWINGS

[0075] The accompanying drawings, which are incorporated into and form part of the specification, illustrate an embodiment consistent with the present application and, together with the specification, serve to explain the principles of the application.

[0076] Figure 1 is a structural block diagram of a work stress monitoring and stress data physical interaction system according to an exemplary embodiment.

[0077] Figure 2 is an example block diagram of a work stress monitoring and stress data physical interaction system according to an exemplary embodiment.

[0078] Figure 3is a test experimental flow chart of a working pressure monitoring and pressure data physical interaction system according to an exemplary embodiment. DETAILED DESCRIPTION

[0079] The exemplary embodiments will be described in detail herein with reference to the attached drawings. The description of the exemplary embodiments is intended to apply to various alternative embodiments as well. The following description is not limited to the exemplary embodiments, but rather, is applicable to any apparatus and method consistent with the present application as set forth in the appended claims.

[0080] The terminology used in the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application. As used in the description of the embodiments and the appended claims, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It also will be understood that the term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

[0081] It is to be understood that although the terms first, second, third, etc. can be employed to describe various information, such information should not be limited by these terms. These terms are only used to distinguish one piece of information from another. For example, a first information could be termed a second information, and, similarly, a second information could be termed a first information without departing from the scope of the present application. As used herein, the term "if' can be construed to mean "when" or "in response to determining" or "in response to a determination" depending on the context.

[0082] Reference Figure 1 and Figure 2 The physical interaction system for real-time feedback and intervention on group pressure provided by the embodiments of the present application can include:

[0083] a heart rate data acquisition module including a PPG sensor that can be wrapped and fixed to the index finger of the non-dominant hand of the user being detected, for acquiring heart rate data of the user being detected;

[0084] a stress state and time calculation module connected to the heart rate data acquisition module, for calculating the real-time stress value HRV of the user being detected according to the acquired heart rate data n counting the tomato clock and the rest time, and calculating the average stress value in the tomato clock at the end of each tomato clock and the stress level;

[0085] The tomato clock setting module is connected with the stress state and time calculation module, and includes a user interface for receiving user-set working time and rest time parameters of the tomato clock and storing the parameters in a memory.

[0086] The tomato clock reminding and stress feedback module is controlled by the data physicalization control module, and includes twelve test tubes and a micro sound, each of the twelve test tubes is equipped with a ring-shaped light belt at the bottom to physically present the average stress value and stress level in the tomato clock in a visual form, wherein: the stress level of the user in the tomato clock is represented by the color of the liquid column, and the stress size is represented by the height of the liquid column in the test tube, the color of the ring-shaped light belt controls the color change of the liquid column, in addition, during the rising of the liquid column, the micro sound will play corresponding audio according to the stress level to physically present the stress level in an audible form, indicating the end of the tomato clock, similarly, after the rest time is over, the micro sound will play a reminding audio;

[0087] The real-time stress feedback adjustment module is controlled by the data physicalization control module, and includes a horizontal light belt placed on the base to physically present the calculated real-time stress state in a visual form, and guide to adjust the real-time stress level of the user when the user is in a high stress level, wherein: the real-time stress state of the user is directly represented by the color of the horizontal light belt of the base, and the high stress level adjustment of the user is guided by the flashing of the horizontal light belt of the base.

[0088] The data physicalization control module is driven by the calculation results of the stress state and time calculation module, and controls the tomato clock reminding and stress feedback module and the real-time stress feedback adjustment module by controlling the height of the liquid column, the color change of the ring-shaped light belt and the horizontal light belt of the base through the circuit control electronic elements.

[0089] Specifically, the real-time stress value HRV n is the average stress value in the tomato clock is evaluated using the heart rate variability (HRV) value, which is calculated based on the standard deviation of the NN intervals (SDNN). SDNN, as an indicator of HRV, reflects the time variability of all NN intervals (i.e., the interval between a normal heartbeat and the next normal heartbeat) in the heart rate sequence. The smaller the SDNN value, the greater the stress of the user.

[0090] Specifically, the real-time stress value HRV n is calculated using a special form of SDNN based on a moving window of heartbeats, and the calculation formula is as follows:

[0091] HRV n = ((w-1) x HRV n-1 + |IBI n - IBI avg |) / w

[0092]

[0093] wherein w is a selected heart beat moving window size, in the present example w is set to 16; IBI n denotes the time interval between the nth heart beat and the (n-1)th heart beat.

[0094] Specifically, the average stress value within the tomato clock The calculation formula is:

[0095]

[0096] wherein, denotes the average value of all HRV values within the tomato clock; HRV k denotes the heart rate variability score obtained by the kth measurement within the tomato clock; N denotes the total number of HRV values within the tomato clock, which depends on the measurement frequency and the number of heart beats within the tomato clock.

[0097] The tomato clock reminder and stress feedback module, controlled by the data physical control module, includes twelve test tubes and a micro sound, each test tube of the twelve test tubes is equipped with an annular light belt at the bottom, through an algorithm, the average stress value within the tomato clock and the stress level are physically presented in a visual form, wherein: the stress level of the user within the tomato clock is represented by the liquid column color, the stress size is represented by the liquid column height in the test tube, and the liquid column color change is controlled by the annular light belt color. In addition, during the liquid column rising process, the micro sound will play the corresponding audio according to the stress level, so as to physically present the stress level in an auditory form, indicating the end of the tomato clock. Similarly, after the rest time is over, the micro sound will play a reminder audio;

[0098] Specifically, the stress level of the user within the tomato clock is visually represented by the liquid column color as:

[0099] The stress level of the user within the tomato clock is divided into five levels, and each level corresponds to a main color. Under the same stress level, The smaller the stress level is, the greater the stress of the user is, and the higher the saturation of the color is. The liquid column color change is controlled by the annular light belt color, when the user is in the first stress level, the annular light belt is red, and the intensity formula of the red color can be expressed as:

[0100]

[0101] RGB r = 255

[0102]

[0103] RGB b = 0

[0104] When the user is at the second stress level, the annular light belt is red-orange, and the intensity formula of red-orange can be expressed as:

[0105]

[0106] RGB r = 255

[0107]

[0108] RGB b = 0

[0109] When the user is at the third stress level, the annular light belt is orange-yellow, and the intensity formula of orange-yellow can be expressed as:

[0110]

[0111] RGB b = 0

[0112] When the user is at the fourth stress level, the annular light belt is yellow-green, and the intensity formula of yellow-green can be expressed as:

[0113]

[0114] RGB g = 255

[0115] RGB b = 0

[0116] When the user is at the fifth stress level, the annular light belt is green, and the intensity formula of green can be expressed as:

[0117] RGB r = 0

[0118] RGB g = 255

[0119] RGB b = 0

[0120] Wherein, intensity represents the saturation of the color, RGB r , RGB g , RGB b respectively represent the intensity values of the red, green, and blue components of the light color, stressBar k represents the threshold value of different color levels.

[0121] ​Specifically, the auditory form of physical presentation of the pressure level is visually presented as:

[0122] When the user is in a low pressure level in the Pomodoro clock, the audio control module selects to play audio files of a celebratory nature to celebrate the end of the Pomodoro clock period, enhancing the user's sense of achievement and pleasure. When the user is in a medium or high pressure level in the Pomodoro clock, the audio control module selects to play music of a relaxing nature to remind the user to properly relax himself to reduce stress and avoid excessive fatigue. The audio changes synchronously with the liquid column height, ensuring the synchronization of the auditory effect and the visual effect. In this example, the sound effects of electronic game victory and passing are used as audio files of a celebratory nature, and natural sound effects such as forest bird songs and sea wave sounds are used as audio files of a relaxing nature

[0123] Specifically, the determination method of the pressure state in the Pomodoro clock is:

[0124] If the user's is less than the first threshold value, the pressure state is determined to be a high pressure state; if it is greater than or equal to the first threshold value and less than the second threshold value, the pressure state is determined to be a low pressure state; if it is greater than or equal to the second threshold value, the pressure state is determined to be no pressure, wherein the first threshold value is less than the second threshold value. In this example, the first threshold value is set to 50 milliseconds, and the second threshold value is set to 100 milliseconds.

[0125] Specifically, the pressure of the user in the time interval is represented by the height of the liquid column in the test tube as:

[0126] The height of the liquid column is inversely proportional to the The greater the pressure the user bears, the higher the water level in the corresponding test tube. In order to further amplify the pressure changes at high and medium pressure levels and make the user more clearly perceive the fluctuations in their own pressure, the response of the liquid column height to pressure changes is more significant at high and medium pressure levels. The relationship between the liquid level height H in the liquid column and is expressed as:

[0127]

[0128] wherein HRV min1 , HRV min2 , HRV min3 respectively represent the minimum value of the user's HRV in different pressure intervals, HRV max1 , HRV max2 , HRV max3 represent the maximum value of the HRV in different pressure intervals, H min1 , H min2 , H min3 represent the minimum value of the liquid level height in different intervals, H max1 , Hmax2 , H max3 represents the maximum value of the height of the page.

[0129] a real-time stress feedback adjustment module, controlled by the data physicalization control module, including a lateral light strip placed on the base, which visually presents the calculated real-time stress value HRV n in a visual form, while adjusting the user's real-time stress level, wherein: the user's real-time stress state is visually represented by the color of the lateral light strip on the base, and the user's real-time stress adjustment is guided by the flashing of the lateral light strip on the base.

[0130] Specifically, the user's real-time stress state is visually represented by the color of the lateral light strip on the base as follows:

[0131] If the user's real-time stress is at a high stress level, the module will control the lateral light strip on the base to be purple, otherwise, it is classified as low stress or no stress, and the module will control the lateral light strip on the base to be blue.

[0132] Specifically, the user's real-time stress adjustment is guided by the flashing of the lateral light strip on the base as follows:

[0133] If the user's real-time stress state is high stress, the lateral light strip on the base will flash at a fixed frequency, guiding the user to take deep breaths, thereby adjusting the user's stress. When the user's real-time stress state is at a low stress or no stress state, the lateral light strip on the base stops flashing.

[0134] Specifically, the determination method of the real-time stress state is as follows:

[0135] If the user's real-time stress value HRV n is less than the first threshold value, the stress state is determined to be high stress; if it is greater than or equal to the first threshold value and less than the second threshold value, the stress state is determined to be low stress; if it is greater than or equal to the second threshold value, the stress state is determined to be no stress, wherein the first threshold value is less than the second threshold value. In this example, the first threshold value is set to 50 milliseconds, and the second threshold value is set to 100 milliseconds.

[0136] The data physicalization control module is driven by the calculation results of the stress state and time calculation module, and realizes the color change of the liquid column height, the ring light strip and the lateral light strip on the base through circuit control electronic elements, thereby controlling the tomato clock reminder and stress feedback module, real-time stress feedback adjustment module.

[0137] Specifically, the data physicalization control module includes: a water flow control module, a light control module, and a sound screen control module.

[0138] Specifically, the water flow control module includes a water storage tank, a water supply pump, a flow divider, solenoid valves, and a backflow pump. The water supply pump is fixed to the bottom of the water storage tank, and the water supply pump and the flow divider are connected through a connecting water pipe. The flow divider has 13 outlets, and each outlet is connected to a solenoid valve through a connecting water pipe. Among them, 12 solenoid valves are connected to the test tubes of the tomato clock reminder and pressure feedback module through a connecting water pipe, and the 13th solenoid valve is connected to the inlet of the backflow pump. The outlet of the backflow pump is connected to the backflow water pipe. The water storage tank, the water inlet pipeline of the water supply pump, the water supply pump, the flow divider solenoid valve, the backflow pump, and the backflow water pipe form a circulating water circuit.

[0139] Specifically, the water supply control logic of the water flow control module is as follows:

[0140] According to the average pressure value in the tomato clock sent by the tomato clock reminder and pressure feedback module, the required water supply time T is calculated to ensure that the water supply meets the needs of the system. Then, a start signal is sent to the water supply pump and the solenoid valve connected to the target controlled test tube, the water pump starts to supply water, and the solenoid valve opens to allow water flow into the system. During the water supply process, the control module monitors the changes of water flow and pressure value in real time to ensure the stability and accuracy of the water supply process. If there is an abnormality, the controller will adjust the water supply time or shut down the water supply equipment in time. When the water supply time T reaches, the control module immediately sends a shutdown signal to the water supply pump and the solenoid valve to stop water supply and close the solenoid valve, completing a water supply cycle.

[0141] Specifically, the calculation method of the water supply time T is as follows:

[0142]

[0143] Where T is the water supply time required for the water pump and solenoid valve to run, V is the required water volume, r is the radius of the test tube bottom surface, and Q is the constant water pump flow rate.

[0144] Specifically, the water flow backflow control logic of the water flow control module is as follows:

[0145] The controller sends a start signal to the backflow pump and opens the backflow solenoid valve to pump water back to the water storage tank. During the backflow process, the controller continuously monitors the water volume and pressure value in the system to ensure the smooth progress of the backflow process. If an abnormality is detected during the backflow process, the control module will automatically adjust the backflow rate or suspend the backflow operation. When the water volume in the system returns to the preset initial level, the controller will send a shutdown signal to the backflow pump and the solenoid valve to stop the backflow pump and close the solenoid valve, completing the backflow process.

[0146] Specifically, the audio control module logic is as follows:

[0147] According to the average stress value in the Pomodoro clock transmitted by the Pomodoro clock reminding and stress feedback module, the audio control module selects the corresponding audio file from the preset audio file library, and sends an audio playing instruction to the micro sound box, and adjusts the audio playing in real time to match the change of the liquid column height. The audio files in the audio file library are divided into celebration music and relaxation music.

[0148] If the rest time termination signal is received, an audio playing instruction is sent to the micro sound box to play the rest termination audio.

[0149] Specifically, the light control module logic is:

[0150] According to the average stress value in the Pomodoro clock transmitted by the Pomodoro clock reminding and stress feedback module and the real-time stress value, the corresponding stress level is calculated, and the light color corresponding to the stress level is judged. The corresponding light belt is changed in color.

[0151] From the above embodiments, it can be seen that the heart rate data acquisition module containing the PPG sensor is adopted to measure physiological data; the Pomodoro clock setting module is adopted to receive the Pomodoro clock working time and rest time parameters set by the user; the real-time stress value of the detected user is calculated by the stress state and time calculation module, the average stress value in each Pomodoro clock is calculated, the Pomodoro clock stress level evaluation threshold is set, and the mapping relationship between the Pomodoro clock stress level and the feedback mode is designed, to form the Pomodoro clock reminding and stress feedback module; the real-time stress state evaluation threshold is set, the mapping relationship between the real-time stress state evaluation threshold and the feedback mode is designed, and the stress regulation guidance is constructed, to form the real-time stress feedback regulation module. Abstract stress data is converted into tangible form through physical and visual elements and auditory elements: the Pomodoro clock is used to help the user improve work efficiency while monitoring and feeding back the user's physiological and psychological state. The user can intuitively understand his / her stress condition through visual and auditory signals at the end of each Pomodoro clock period, and can observe and analyze the stress change under different tasks through the physical form of real-time data. The design combining the Pomodoro clock enables the user not only to focus on work and improve work efficiency, but also to pay attention to his / her physical and mental health state in time; the real-time feedback mode corresponding one-to-one between the stress state, the stress size, the stress regulation guidance and the physical elements of the physical device overcomes the technical problems that the stress data feedback system is not intuitive enough and the data interaction is not strong enough, improves the user's perception experience of the real-time stress state and the stress state in different Pomodoro clocks during work, so that the user can intuitively perceive and manage his / her stress level; at the same time, with the help of the physical device, a novel and interesting real-time guided breathing process is designed, so as to achieve the technical effect of regulating stress.

[0152] Embodiment:

[0153] First, simulate the office scene, assign 1 computer to the test user, fix the PPG sensor on the index finger of the non-dominant hand of the test user, and make it relatively stable on the table. The user customizes the Pomodoro clock working time and rest time parameters through the interactive interface and passes them to the Pomodoro clock setting module. Then, in different Pomodoro clocks, assign the user similar work tasks in an office scenario, including high-difficulty tasks and low-difficulty tasks, to stimulate different levels of simulated work pressure.

[0154] Then, when the user starts doing the task, the heart rate data acquisition module starts working at the same time to collect the user's physiological data; the heart rate data acquisition module is connected to another monitoring computer through USB transmission, and the stress state and time calculation module processes the received heart rate data in real time, calculates the real-time stress value of the test user, and at the same time, calculates the average stress value in the Pomodoro clock.

[0155] Next, the Pomodoro clock reminder and stress feedback module will calculate the stress state in the Pomodoro clock physically present in the form of vision and hearing, and feedback the user's stress state in the Pomodoro clock. Specifically, the stress state in the Pomodoro clock compared with the threshold set previously, the user's stress state in the Pomodoro clock is obtained, and the user's stress state in the Pomodoro clock is visually represented using the color of the ring-shaped light strip and the auditory effect of the audio; if the user is in a low stress level in the Pomodoro clock, the audio control module will select to play celebratory audio, and if the user is in a medium or high stress level in the Pomodoro clock, the audio control module will select to play relaxing music; the size of the stress is represented by the height of the liquid column in the test tube, and the greater the stress the user bears, the higher the liquid level in the corresponding test tube. The audio changes synchronously with the liquid column height to ensure the synchronization of the auditory and visual effects.

[0156] In addition, the real-time stress feedback adjustment module will calculate the real-time stress value HRV n physically present in the form of vision, while adjusting the user's real-time stress level. Specifically, the real-time stress value HRV n compared with the threshold set previously, the user's stress state in the Pomodoro clock is obtained, and the user's stress state in the Pomodoro clock is visually represented using the color of the ring-shaped light strip and the auditory effect of the audio; if the user is in a low stress level in the Pomodoro clock, the audio control module will select to play celebratory audio, and if the user is in a medium or high stress level in the Pomodoro clock, the audio control module will select to play relaxing music; the size of the stress is represented by the height of the liquid column in the test tube, and the greater the stress the user bears, the higher the liquid level in the corresponding test tube. The audio changes synchronously with the liquid column height to ensure the synchronization of the auditory and visual effects.

[0157] Finally, after completing the work task within the specified time, the base transverse light strip will flash at a fixed frequency to guide the user to take a deep breath, so as to adjust the stress of the user. At this time, the heart rate data collection module continuously collects user data, and at the same time, the stress state and time calculation module calculates the stress state of the user in real time to observe the stress relief effect of the user under this intervention measure.

[0158] The above embodiment process can refer to Figure 3 , which is roughly divided into six stages. The first stage is to let the user be in a natural relaxed state, measure the baseline heart rate value of each user, and then fill in the RSS and STAI questionnaires; the second stage stimulates the user to produce lower stress, and then fills in the Ruminative Thinking Scale (RSS) and State-Trait Anxiety Inventory (STAI); the third stage lets the user relax freely, and then fills in the RSS and STAI questionnaires; the fourth stage stimulates the user to produce higher stress, and then fills in the RSS and STAI questionnaires; the fifth stage lets the user relax freely, and then fills in the RSS and STAI questionnaires; the sixth stage conducts a questionnaire interview on the user.

[0159] Among them, RRS and STAI are subjective stress state scales that need to be filled in by the user; the gray bar represents the data collection time period of the user measured by the PPG sensor. The raw data used in the above embodiment is the data within the above data collection time period.

[0160] Through the process of the above embodiment, the test user can focus on completing the corresponding work task in the Pomodoro clock, and at the same time, better understand the real-time stress state of the individual and the stress state change in different time periods, reflect on the change of stress state in the management process, and adjust the physiological and psychological stress in time through the guidance measures of the system.

[0161] Other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. It is intended that the application be limited only by the scope of the claims, including any appropriate amendments thereof, and that there is no intention to limit the scope of the application to any of the specific recited embodiments. The specification and examples given herein are to be considered only as illustrative and not as limiting the scope of the application.

[0162] It should be understood that the application is not limited to the precise construction that has been described above and shown in the accompanying drawings, and that various modifications and changes can be made by those skilled in the art without departing from the scope of the application. The scope of the application is to be limited only by the appended claims.

Claims

1. A work pressure management method, characterized by, The application relates to a tomato clock, which comprises a heart rate data acquisition module, a tomato clock setting module, a tomato clock reminding and stress feedback module and a real-time stress feedback adjustment module. The heart rate data acquisition module comprises a PPG sensor which can be fixed on the index finger of the non-dominant hand of a user to be detected to acquire heart rate data of the user to be detected. The pressure state and time calculation module is connected with the heart rate data acquisition module, and is used for calculating the real-time pressure value HRV of the detected user according to the collected heart rate data n Timing the tomato clock and the rest time, calculating the average pressure value in the tomato clock at the end of each tomato clock With the pressure level; The tomato clock setting module is connected with the stress state and time calculation module and comprises a user interface which is used for receiving working time and rest time parameters set by the user and storing the parameters in a memory. The tomato clock reminding and stress feedback module is controlled by the data physicalization control module and comprises twelve test tubes and a micro sounder, the bottom of each test tube is equipped with an annular light belt, and the average stress value and the stress level in the tomato clock are physically presented in a visual form, wherein the stress level of the user in the tomato clock is indicated by the color of the liquid column, the stress size is indicated by the height of the liquid column in the test tube, the color of the annular light belt controls the color change of the liquid column, and in addition, the micro sounder plays corresponding audio according to the stress level to physically present the stress level in an audible form and indicate the end of the tomato clock; similarly, after the rest time ends, the micro sounder plays a reminding audio. The real-time stress feedback adjustment module is controlled by the data physicalization control module and comprises a horizontal light belt arranged on a base, and the calculated real-time stress state is physically presented in a visual form, and when the user is in a high stress level, the horizontal light belt of the base is used for guiding the adjustment of the real-time stress level of the user. The data physicalization control module is driven by the calculation result of the stress state and time calculation module, the height of the liquid column, the color change of the annular light belt and the horizontal light belt of the base are realized by circuit control electronic elements, so that the tomato clock reminding and stress feedback module and the real-time stress feedback adjustment module are controlled.

2. The working pressure monitoring and pressure data physicalization interaction system of claim 1, wherein, The real-time stress value HRV n with the average value of stress in the tomato clock The real-time stress value HRV is evaluated using heart rate variability n Calculated based on the standard deviation of inter-beat intervals SDNN, SDNN reflects the time variability of all NN intervals in the heart rate sequence, the smaller the SDNN value, the greater the stress of the user; NN interval is the interval between a normal heartbeat and the next normal heartbeat; The real-time pressure value HRV n The calculation formula is as follows: HRV n = (w - 1) x HRV n-1 + |IBI n - IBI avg |) / w where w is a selected heartbeat moving window size; IBI n represents the time interval between the nth heartbeat and the n-1th heartbeat; IBI avg represents the average value of the heartbeat intervals within the selected window; The average value of the pressure within the tomato clock The formula for calculating the average value of the pressure within the tomato clock is: wherein, represents the average of all HRV values within the tomato clock; HRV k represents the heart rate variability score obtained at the kth measurement within the tomato clock; N represents the total number of HRV values within the tomato clock, this number depends on the measurement frequency and the number of heartbeats within that tomato clock.

3. The working pressure monitoring and pressure data physicalization interaction system of claim 1, wherein, The stress level of the user in the tomato clock is visually indicated by the color of the liquid column, and the stress level of the user in the tomato clock is visually indicated by the color of the liquid column. The stress level of the user in the Pomodoro clock is divided into five levels, each level corresponds to a color; under the same level of stress, The smaller, the greater the stress of the user, the higher the saturation of the color; the color of the liquid column is controlled by the color of the ring-shaped light belt. When the user is in the first stress level, the ring-shaped light belt is red. The intensity formula of the red color can be expressed as: RGB r = 255 RGB b = 0 When the user is in the second stress level, the annular light belt is red and orange, and the intensity formula of the red and orange color can be expressed as follows: RGB r = 255 RGB b = 0 When the user is in the third stress level, the annular light belt is orange and yellow, and the intensity formula of the orange and yellow color can be expressed as follows: RGB b = 0 When the user is in the fourth stress level, the annular light belt is yellow and green, and the intensity formula of the yellow and green color can be expressed as follows: RGB g = 255 RGB b = 0 When the user is in the fifth stress level, the annular light belt is green, and the intensity formula of the green color can be expressed as follows: RGB r = 0 RGB g = 255 RGB b = 0 where intensity represents the saturation of the color, RGB r , RGB g , RGB b represent the intensity values of the red, green, and blue components of the light color, respectively, stressBar k represents the stress bar of different color levels threshold values.

4. The working pressure monitoring and pressure data physicalization interaction system of claim 1, wherein, The audible form physically presents the stress level, and the audible form physically presents the stress level. When the user is in a low stress level in the tomato clock, the audio control module selects to play an audio file with a celebratory nature to celebrate the end of the tomato clock period and enhance the sense of achievement and pleasure of the user; when the user is in a medium and high stress level in the tomato clock, the audio control module selects to play music with a relaxing nature to remind the user to relax himself properly so as to reduce stress and avoid excessive fatigue; the audio changes synchronously with the height of the liquid column, so that the hearing effect is synchronous with the visual effect.

5. The working pressure monitoring and pressure data physicalization interaction system of claim 1, wherein, The stress of the user in the tomato clock is indicated by the height of the liquid column in the test tube. The height of the liquid column is proportional to the average pressure in the user's tomato clock The greater the pressure the user bears, the higher the liquid column in the corresponding test tube. In order to further amplify the pressure changes at high and medium pressure levels, so that the user can more clearly perceive the fluctuations in their own pressure, the response of the liquid column height to pressure changes is more significant at high and medium pressure levels. The relationship between the height H of the liquid surface in the liquid column and the average pressure in the tomato clock is expressed as: ​ wherein HRV min1 , HRV min2 , HRV min3 respectively represent the minimum value of HRV of the user in different stress intervals, HRV max1 , HRV max2 , HRV max3 represent the maximum value of HRV in different stress intervals, H min1 , H min2 , H min3 represent the minimum value of liquid level in different intervals, H max1 , H max2 , H max3 represent the maximum value of page height.

6. The working pressure monitoring and pressure data physicalization interaction system of claim 1, wherein, The real-time stress state of the user is visually indicated by the color of the horizontal light belt of the base. If the user's real-time stress is at a high stress level, the module will control the base transverse light strip to be purple, otherwise, it is classified as low stress or no stress, and the module will control the base transverse light strip to be blue; The real-time stress adjustment of the user uses the base transverse light strip to flash to guide, which is specifically: If the user's real-time stress state is high stress, the base transverse light strip will flash at a fixed frequency, guiding the user to take deep breaths, thereby adjusting the user's stress; when the user's real-time stress state is at a low stress or no stress level, the base transverse light strip stops flashing.

7. The working pressure monitoring and pressure data physicalization interaction system of claim 3, 5 or 6, wherein, The real-time stress state HRV n and the tomato clock internal pressure level The determination method is: If the user's HRV n value or If the pressure level is less than the first threshold, it is determined to be a high pressure level; if it is greater than or equal to the first threshold and less than the second threshold, it is determined to be a low pressure level; if it is greater than or equal to the second threshold, it is determined to be a no-pressure level, where the first threshold is less than the second threshold.

8. The working pressure monitoring and pressure data physicalization interaction system of claim 1, wherein, The data physical control module includes: water flow control module, light control module, audio screen control module.

9. The working pressure monitoring and pressure data physicalization interaction system of claim 8, wherein, The water flow control module includes: a water storage tank, a water supply pump, a flow divider, an electromagnetic valve, and a backflow pump; wherein the water supply pump is fixed to the bottom of the water storage tank, and the water supply pump and the flow divider are connected in communication through a connecting water pipe; the flow divider has 13 outlets, and the 13 outlets are connected in communication with 13 electromagnetic valves through connecting water pipes; among them, 12 electromagnetic valves are connected in communication with test tubes of the tomato clock reminder and stress feedback module through connecting water pipes, and the 13th electromagnetic valve is connected with the inlet of the backflow pump; the outlet of the backflow pump is connected with the backflow water pipe; the water storage tank, the water inlet pipeline of the water supply pump, the water supply pump, the flow divider electromagnetic valve, the backflow pump and the backflow water pipe form a circulating water circuit.

10. The working pressure monitoring and pressure data physicalization interaction system of claim 8, wherein, The water supply control logic of the water flow control module is: According to the average stress value in the tomato clock sent by the tomato clock reminder and stress feedback module, the required water supply time T is calculated to ensure that the water supply meets the needs of the system; then the controller sends a start signal to the water supply pump and the electromagnetic valve connected to the target controlled test tube at the same time, the water pump starts to supply water, and the electromagnetic valve opens to allow water flow into the system; During the water supply process, the control module monitors the changes of water flow and pressure value in real time to ensure the stability and accuracy of the water supply process; if there is an abnormality, the controller will adjust the water supply time or close the water supply equipment in time; when the water supply time T arrives, the control module immediately sends a closing signal to the water supply pump and the electromagnetic valve to stop water supply and close the electromagnetic valve, completing a water supply cycle; the water flow control module can recycle the water in the test tube to the water storage tank through water flow backflow; The calculation method of the water supply time T is: Wherein, T is the water supply time required for the water pump and the electromagnetic valve to run, V is the required water volume, r is the radius of the bottom surface of the test tube, and Q is the constant water pump flow rate; The water flow backflow control logic of the water flow control module is: The controller sends a start signal to the backflow pump and opens the backflow electromagnetic valve to pump the water back to the water storage tank; during the backflow process, the controller continuously monitors the water volume and pressure value in the system to ensure the smooth progress of the backflow process; if an abnormality is detected during the backflow process, the control module will automatically adjust the backflow rate or suspend the backflow operation; when the water volume in the system returns to the preset initial level, the controller will send a closing signal to the backflow pump and the electromagnetic valve to stop the backflow pump and close the electromagnetic valve, completing the backflow process; The audio control module logic is: According to the average pressure value in the Pomodoro clock transmitted by the Pomodoro clock reminding and pressure feedback module, the audio control module selects the corresponding audio file from the preset audio file library and sends an audio playing instruction to the micro sound box to adjust the audio playing in real time to match the change of the liquid column height; the audio files in the audio file library are divided into celebration music and relaxation music; If the rest time termination signal transmitted by the Pomodoro clock reminding and pressure feedback module is received, an audio playing instruction is sent to the micro sound box to play the rest audio termination; The light control module logic is: According to the average pressure value in the Pomodoro clock transmitted by the Pomodoro clock reminding and pressure feedback module and the real-time pressure value, the corresponding pressure level is calculated, and the light color corresponding to the pressure level is judged; the corresponding light belt is controlled to change color.

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