CN110545572A - fatigue detection system capable of automatically standby and saving electricity - Google Patents

fatigue detection system capable of automatically standby and saving electricity Download PDF

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Publication number
CN110545572A
CN110545572A CN201810528235.6A CN201810528235A CN110545572A CN 110545572 A CN110545572 A CN 110545572A CN 201810528235 A CN201810528235 A CN 201810528235A CN 110545572 A CN110545572 A CN 110545572A
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module
control module
cmos camera
receiving
infrared
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袁丽萍
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/16—Devices for psychotechnics; Testing reaction times ; Devices for evaluating the psychological state
    • A61B5/163—Devices for psychotechnics; Testing reaction times ; Devices for evaluating the psychological state by tracking eye movement, gaze, or pupil change
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
    • G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
    • G06V40/18—Eye characteristics, e.g. of the iris
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/724—User interfaces specially adapted for cordless or mobile telephones
    • H04M1/72403—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality
    • H04M1/7243—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality with interactive means for internal management of messages
    • H04M1/72439—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality with interactive means for internal management of messages for image or video messaging
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/724—User interfaces specially adapted for cordless or mobile telephones
    • H04M1/72448—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/724—User interfaces specially adapted for cordless or mobile telephones
    • H04M1/72448—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions
    • H04M1/72454—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions according to context-related or environment-related conditions
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0251—Power saving arrangements in terminal devices using monitoring of local events, e.g. events related to user activity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0251—Power saving arrangements in terminal devices using monitoring of local events, e.g. events related to user activity
    • H04W52/0254—Power saving arrangements in terminal devices using monitoring of local events, e.g. events related to user activity detecting a user operation or a tactile contact or a motion of the device
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0261—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level
    • H04W52/0264—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level by selectively disabling software applications
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M2250/00—Details of telephonic subscriber devices
    • H04M2250/52—Details of telephonic subscriber devices including functional features of a camera
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Human Computer Interaction (AREA)
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Abstract

the invention discloses a fatigue detection system capable of automatically realizing standby power saving, which comprises an infrared optical module, a CMOS camera module, a control module, a clock module and a task management module, wherein the infrared optical module, the CMOS camera module, the clock module and the task management module are respectively connected with the control module, the CMOS camera module comprises two cameras, whether a person is tired is judged by utilizing a PERCLOS standard, a background running program is closed by controlling the task management module, the standby power is saved automatically, and the purpose of saving the electric energy of intelligent equipment such as a mobile phone or a tablet is achieved.

Description

fatigue detection system capable of automatically standby and saving electricity
Technical Field
the invention relates to the field of machine vision control, in particular to a fatigue detection system capable of automatically waiting for power saving.
Background
An intelligent terminal is a type of embedded computer system device, so the architecture framework of the intelligent terminal is consistent with the architecture of an embedded system. Meanwhile, the intelligent terminal is used as an application direction of the embedded system, and the application scene setting is clear, so that the system structure is more clear than that of a common embedded system, the granularity is finer, and the system has certain characteristics. For example, a smart phone, a tablet computer, and the like all belong to the smart terminal.
with the popularity and popularity of intelligent terminals, smart phones or tablets are an indispensable part of life of people, and people have dependence on the smart phones or tablets more and more when holding the smart phones or tablets at any time and any place. Playing the mobile phone or the tablet before falling asleep at night seems to be a daily habit of contemporary people, and a plurality of people can sleep unconsciously in the playing process, and at the moment, if the mobile phone or the tablet runs a video, the mobile phone or the tablet cannot be automatically turned off, the video is played till the video is finished or the mobile phone is automatically turned off after the electric quantity of the mobile phone is exhausted, so that a lot of electric quantity is wasted undoubtedly. Meanwhile, the heat and electromagnetic radiation emitted in the process of playing and running the mobile phone video are higher than those in a standby state, which poses great threat to the health of people.
disclosure of Invention
the invention aims to overcome the technical problems and provide a fatigue detection system capable of automatically waiting and saving power, and the purpose of detecting the fatigue of a user watching a mobile phone or a tablet and realizing the automatic waiting and power saving mode is achieved.
the invention is realized by the following technical scheme:
the utility model provides a but fatigue detection system of automatic standby power saving, includes infrared optical module, CMOS camera module, control module, clock module, task management module, infrared optical module, CMOS camera module, clock module, task management module are connected with control module respectively, CMOS camera module includes two cameras, wherein:
An infrared light module: receiving a starting signal sent by the control module, and starting the infrared light source; receiving a closing signal sent by the control module, and closing the infrared light source;
A CMOS camera module: receiving a starting signal sent by a control module, and starting a camera; collecting infrared image information reflected by human eyes to an infrared light source, and transmitting the infrared image information collected by the two cameras at the same time to the control module; receiving a closing signal sent by the control module, and closing the camera;
a clock module: collecting time information and transmitting the time information to a control module;
a control module: receiving time information transmitted by a clock module, and sending a starting signal to an infrared optical module and a CMOS camera module when the received time information is in a time period of the trigger time information according to trigger time information preset in the clock module; receiving infrared image information transmitted by a CMOS camera module, processing to obtain a pupil image, extracting characteristic parameters of the pupil image, comparing the characteristic parameters with a preset PERCLOS value, if the comparison result is judged to be eye fatigue, delaying for 5-10 s, then sending a task closing instruction to a task management module, and sending a closing signal to an infrared light module and the CMOS camera module;
a task management module: receiving a task closing instruction sent by a control module, and closing the running program;
Still include the display module who is connected with control module, wherein:
a control module: if the comparison result is judged to be eye fatigue, immediately sending fatigue prompt information to a display module;
a display module: and receiving and displaying the fatigue prompt information sent by the control module. Further, the invention aims at the problems that people are asleep unconsciously in the process of using the mobile phone or the tablet, and the background program of the equipment of the people is continuously operated to cause electric quantity waste and the like, and discovers that the sizes of pupils of human eyes are different when people are tired according to scientific research. The method comprises the steps of utilizing the basic physiological characteristics of human eyes, namely the difference of the reflection quantity of infrared light with different wavelengths by the retina of the human eyes, adding an infrared light module and a CMOS camera module, wherein the infrared light module is used for emitting an infrared light source, the CMOS camera module is used for shooting an image of the infrared light reflected by the human eyes, then decomposing collected infrared image information by a control module according to the existing image recognition technology, carrying out differential processing by utilizing the existing image processing program to obtain a pupil image, and extracting the characteristic parameters of the pupil image. The method comprises the steps of obtaining the maximum value of the size of a pupil and the real-time pupil closing percentage through statistical processing of a user, calculating to obtain a PERCLOS value f of the user, wherein f is the percentage of the time that the eye is closed for more than 80% of a certain specific time, taking an interval value of f and storing the interval value as a preset PERCLOS value, comparing the characteristic parameters of the pupil image obtained in real time at present with the preset PERCLOS value, if the f obtained through calculation of the characteristic parameters of the pupil image obtained in real time at present is within the preset PERCLOS value, judging that the eye is tired, automatically delaying for 5-10 s by a control module, sending a task closing instruction to a task management module, controlling the task management module to close a background running program, automatically waiting for power saving, and saving the electric energy of intelligent equipment such as a mobile phone or a tablet and the like. The method also reduces the error brought by the pupil identification fatigue detection technology and improves the practicability of the invention.
In addition, the control module is internally provided with trigger time information, the trigger time information refers to the starting time of the infrared optical module and the CMOS camera module, the time is set according to the activity time habit of a user playing a mobile phone, the clock module transmits the current time information to the control module, and if the current time reaches the starting time point of the infrared optical module and the CMOS camera module, the control module controls the infrared optical module and the CMOS camera module to be started, so that the infrared optical module and the CMOS camera module work in different time periods, and the problem that the mobile phone or the tablet battery quantity is wasted due to the fact that the infrared optical module and the CMOS camera module work continuously for 24 hours is solved.
Preferably, the emission hole of the infrared light module is located right below the display module. Furthermore, when the human eyes watch the mobile phone, the eyes usually look downwards, so that the emission hole of the infrared optical module is positioned right below the display module, the infrared light source can enter the eyes at each moment, and the accuracy of pupil identification is ensured.
preferably, the device further comprises a vibration module connected with the control module, wherein:
a control module: if the comparison result is judged to be eye fatigue, immediately sending a vibration instruction to a vibration module;
a vibration module: and receiving a vibration instruction sent by the control module, and sounding a vibration prompt. The invention also adopts the vibration module to remind people of paying attention, so that people can continuously operate and control the mobile phone to avoid closing the background if the mobile phone needs to be continuously used. Compared with a display prompting mode, the mode avoids the problem that display information is delayed sometimes in the prior art.
And a Kalman filter is also arranged between the CMOS camera module and the control module and is used for tracking and predicting the pupil image in real time. Further, the Kalman filter is a recursive filter proposed by Kalman (Kalman) for a time-varying linear system. The system can be described by a differential equation model containing orthogonal state variables, the filter is used for combining the past measurement estimation errors into new measurement errors to estimate future errors, and the Kalman filter is used for tracking and predicting the pupil images in real time, so that the errors of the pupil images obtained by the method can be reduced, and the accuracy of the characteristic parameters of the pupil images is improved.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. according to the fatigue detection system capable of automatically realizing standby power saving, disclosed by the invention, according to the physiological characteristics of different sizes of pupils of human eyes when a person is tired, the mobile phone is provided with the infrared optical module and the CMOS camera module, whether the person is tired is judged by utilizing the PERCLOS standard, and the task management module is controlled to close a background running program, so that the standby power saving is realized automatically, and the purpose of saving the electric energy of intelligent equipment such as a mobile phone or a tablet and the like is achieved;
2. According to the fatigue detection system capable of automatically waiting and saving power, the trigger time information is arranged in the control module, the infrared optical module and the CMOS camera module are controlled to work in a time-sharing mode, energy consumption is low, and practicability is high;
3. According to the fatigue detection system capable of automatically waiting and saving power, when the fatigue state of eyes is detected, the task management module is not immediately controlled to close the background running program, but people are prompted to pay attention in an information prompting or vibrating manner, so that people can continuously operate the mobile phone to avoid closing the background if the mobile phone needs to be continuously used, errors caused by a pupil recognition fatigue detection technology are reduced, and the practicability of the fatigue detection system is improved.
drawings
the accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
FIG. 1 is a schematic view of the structure of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.
examples
as shown in fig. 1, the fatigue detection system capable of automatically waiting for power saving of the present invention includes an infrared optical module, a CMOS camera module, a control module, a clock module, and a task management module, where the infrared optical module, the CMOS camera module, the clock module, and the task management module are respectively connected to the control module, the CMOS camera module includes two cameras, where:
An infrared light module: receiving a starting signal sent by the control module, and starting the infrared light source; receiving a closing signal sent by the control module, and closing the infrared light source;
A CMOS camera module: receiving a starting signal sent by a control module, and starting a camera; collecting infrared image information reflected by human eyes to an infrared light source, and transmitting the infrared image information collected by the two cameras at the same time to the control module; receiving a closing signal sent by the control module, and closing the camera;
a clock module: collecting time information and transmitting the time information to a control module;
A control module: receiving time information transmitted by a clock module, and sending a starting signal to an infrared optical module and a CMOS camera module when the received time information is in a time period of the trigger time information according to trigger time information preset in the clock module; receiving infrared image information transmitted by a CMOS camera module, processing to obtain a pupil image, extracting characteristic parameters of the pupil image, comparing the characteristic parameters with a preset PERCLOS value, if the comparison result is judged to be eye fatigue, delaying for 5-10 s, then sending a task closing instruction to a task management module, and sending a closing signal to an infrared light module and the CMOS camera module;
a task management module: receiving a task closing instruction sent by a control module, and closing the running program;
still include the display module who is connected with control module, wherein:
A control module: if the comparison result is judged to be eye fatigue, immediately sending fatigue prompt information to a display module;
a display module: and receiving and displaying the fatigue prompt information sent by the control module. And the emission hole of the infrared light module is positioned right below the display module. Still include the vibrations module of being connected with control module, wherein:
A control module: if the comparison result is judged to be eye fatigue, immediately sending a vibration instruction to a vibration module;
A vibration module: and receiving a vibration instruction sent by the control module, and sounding a vibration prompt. And a Kalman filter is also arranged between the CMOS camera module and the control module and is used for tracking and predicting the pupil image in real time.
When the infrared light module works, the infrared light module emits 850nm wavelength, and at the moment, 90% of incident light can be reflected by retina; the infrared light module emits 950nm wavelength and the retina can only reflect 40% of the incident light. Under the condition of the same illumination, 2 cameras simultaneously measure images of human eyes, one is an image with 850nm wavelength, the other is an image with 950nm wavelength, and the subtraction result of the 2 images only leaves an image of the position of the retina, namely a pupil image, and then characteristic parameters of the pupil image are obtained by analyzing the size and the position of the retina. In order to obtain 2 images with different wavelength light sources but the same, the CMOS camera module comprises two cameras, which are crossed by 90 degrees. When the image passes through a beam splitter, the image is divided into 2 beams which respectively enter the lenses of 2 cameras, and then the 2 lenses respectively use filters with the wavelengths of 850nm and 950nm to obtain corresponding infrared image information.
and then, whether a person is tired is judged by using the PERCLOS standard, so that the task management module is controlled to close the background running program, the automatic standby power saving is realized, and the purpose of saving the electric energy of intelligent equipment such as a mobile phone or a tablet is achieved.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims (4)

1. the utility model provides a but fatigue detection system of automatic standby power saving which characterized in that, includes infrared optical module, CMOS camera module, control module, clock module, task management module, infrared optical module, CMOS camera module, clock module, task management module are connected with control module respectively, CMOS camera module includes two cameras, wherein:
an infrared light module: receiving a starting signal sent by the control module, and starting the infrared light source; receiving a closing signal sent by the control module, and closing the infrared light source;
A CMOS camera module: receiving a starting signal sent by a control module, and starting a camera; collecting infrared image information reflected by human eyes to an infrared light source, and transmitting the infrared image information collected by the two cameras at the same time to the control module; receiving a closing signal sent by the control module, and closing the camera;
A clock module: collecting time information and transmitting the time information to a control module;
a control module: receiving time information transmitted by a clock module, and sending a starting signal to an infrared optical module and a CMOS camera module when the received time information is in a time period of the trigger time information according to trigger time information preset in the clock module; receiving infrared image information transmitted by a CMOS camera module, processing to obtain a pupil image, extracting characteristic parameters of the pupil image, comparing the characteristic parameters with a preset PERCLOS value, if the comparison result is judged to be eye fatigue, delaying for 5-10 s, then sending a task closing instruction to a task management module, and sending a closing signal to an infrared light module and the CMOS camera module;
A task management module: receiving a task closing instruction sent by a control module, and closing the running program;
Still include the display module who is connected with control module, wherein:
a control module: if the comparison result is judged to be eye fatigue, immediately sending fatigue prompt information to a display module;
A display module: and receiving and displaying the fatigue prompt information sent by the control module.
2. the system of claim 1, wherein the emission hole of the infrared module is located right below the display module.
3. The system of claim 1, further comprising a vibration module connected to the control module, wherein:
A control module: if the comparison result is judged to be eye fatigue, immediately sending a vibration instruction to a vibration module;
A vibration module: and receiving a vibration instruction sent by the control module, and sounding a vibration prompt.
4. The system of claim 1, wherein a Kalman filter is further disposed between the CMOS camera module and the control module, and the Kalman filter is used for real-time tracking and predicting the pupil image.
CN201810528235.6A 2018-05-29 2018-05-29 fatigue detection system capable of automatically standby and saving electricity Withdrawn CN110545572A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810528235.6A CN110545572A (en) 2018-05-29 2018-05-29 fatigue detection system capable of automatically standby and saving electricity

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Application Number Priority Date Filing Date Title
CN201810528235.6A CN110545572A (en) 2018-05-29 2018-05-29 fatigue detection system capable of automatically standby and saving electricity

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Application publication date: 20191206