CN108881620B - Mobile terminal awakening method and device and mobile terminal - Google Patents

Mobile terminal awakening method and device and mobile terminal Download PDF

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Publication number
CN108881620B
CN108881620B CN201810536882.1A CN201810536882A CN108881620B CN 108881620 B CN108881620 B CN 108881620B CN 201810536882 A CN201810536882 A CN 201810536882A CN 108881620 B CN108881620 B CN 108881620B
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mobile terminal
infrared
pyroelectric sensor
infrared light
voltage
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CN108881620A (en
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李帅
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SHENZHEN ZHIYING TECHNOLOGY Co.,Ltd.
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Shenzhen Zhiying Technology Co ltd
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Priority to PCT/CN2019/081559 priority patent/WO2019228067A1/en
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    • 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
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/66—Substation equipment, e.g. for use by subscribers with means for preventing unauthorised or fraudulent calling
    • H04M1/667—Preventing unauthorised calls from a telephone set
    • H04M1/67—Preventing unauthorised calls from a telephone set by electronic means
    • 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
    • H04M1/72463—User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions to restrict the functionality of the device
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M2250/00—Details of telephonic subscriber devices
    • H04M2250/12—Details of telephonic subscriber devices including a sensor for measuring a physical value, e.g. temperature or motion
    • 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)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Human Computer Interaction (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Environmental & Geological Engineering (AREA)
  • Telephone Function (AREA)

Abstract

The invention provides a mobile terminal awakening method, a mobile terminal awakening device and a mobile terminal, and relates to the technical field of mobile terminal control, wherein the method comprises the following steps: if the mobile terminal is in a screen locking state, receiving an infrared light signal through an infrared pyroelectric sensor; judging whether the infrared light signal meets a preset awakening condition or not; and if so, waking up the mobile terminal. According to the mobile terminal awakening method, the device and the mobile terminal provided by the embodiment of the invention, when the mobile terminal is in the screen locking state, infrared light can be passively received through the infrared pyroelectric sensor and converted into the voltage signal, the mobile terminal is awakened only when the voltage signal meets the preset awakening condition, the mobile terminal can be automatically awakened based on the received human face infrared light, energy and electricity are saved, and the standby time of the terminal can be prolonged.

Description

Mobile terminal awakening method and device and mobile terminal
Technical Field
The invention relates to the technical field of mobile terminal control, in particular to a mobile terminal awakening method and device and a mobile terminal.
Background
After the smart phone enters the touch screen era, the screen can be turned off and the touch screen can be turned off in the standby state of the smart phone for the purposes of preventing mistaken touch and saving electricity. When a user needs to use the mobile phone, a certain mechanism is adopted to wake up the screen and unlock the screen to enter a user interface. The existing awakening screen mechanism mainly comprises an automatic awakening mechanism and a manual awakening mechanism: the manual awakening is mainly to awaken the screen by pressing a power side key, and the automatic awakening is often combined with the automatic unlocking so as to provide more convenient use experience for users.
The existing automatic awakening and unlocking scheme mainly comprises fingerprint identification and face identification. The scheme of automatic fingerprint awakening and unlocking has the following problems: the fingerprint module also needs to work in the state that the mobile phone screen is locked when the mobile phone screen is turned off, so that the fingerprint module can be awakened at any time, and the power of the fingerprint module is continuously consumed when the mobile phone screen is turned off and standby. With the scheme of face recognition, the following problems exist: the face recognition is generally carried out by taking a picture of a user by a front camera, an acceleration sensor or a gyroscope is adopted to detect the motion state of the mobile phone in the screen-off locking state of the mobile phone, and if the acceleration change or the motion state change occurs to the mobile phone, the front camera is awakened to take the picture. This method can easily cause frequent waking up of the mobile phone to take a picture during the exercise, resulting in increased power consumption.
Aiming at the problem that the standby time of the mobile phone is affected by high power consumption of the automatic awakening mode, an effective solution is not provided at present.
Disclosure of Invention
In view of the above, an object of the present invention is to provide a method and an apparatus for waking up a mobile terminal, and a mobile terminal, which can automatically wake up based on received infrared light of a user's face, save energy and power, and prolong a standby time of a mobile phone.
In a first aspect, an embodiment of the present invention provides a method for waking up a mobile terminal, where the mobile terminal includes an infrared pyroelectric sensor, and the method includes: if the mobile terminal is in a screen locking state, receiving an infrared light signal through an infrared pyroelectric sensor; judging whether the infrared light signal meets a preset awakening condition or not; and if so, waking up the mobile terminal.
In a preferred embodiment of the present invention, the infrared pyroelectric sensor includes a converging lens, a filter layer and a pyroelectric detecting element; the method comprises the following steps of receiving an infrared light signal through an infrared pyroelectric sensor: converging infrared light in an external environment through a converging lens; filtering the collected infrared light through a filter layer, and only enabling the infrared light emitted from the face to reach the pyroelectric detection element; the infrared light is converted into a voltage signal by the pyroelectric detection element, and the voltage signal is taken as an infrared light signal.
In a preferred embodiment of the present invention, the step of determining whether the infrared light signal meets a predetermined wake-up condition includes: judging whether a voltage value corresponding to the voltage signal is greater than a first voltage threshold and smaller than a second voltage threshold; the first voltage threshold and the second voltage threshold are respectively voltage values output by the infrared pyroelectric sensor when the distance from the infrared pyroelectric sensor to a light source of infrared light is a first distance and a second distance; the first distance is less than the second distance; if so, determining that the voltage signal meets the preset awakening condition.
In a preferred embodiment of the present invention, the step of determining whether the infrared light signal meets a predetermined wake-up condition includes: judging whether the waveform of the voltage signal belongs to a preset type of waveform; if so, determining that the voltage signal meets the preset awakening condition.
In a preferred embodiment of the present invention, the step of determining whether the infrared light signal meets a predetermined wake-up condition includes: judging whether a voltage value corresponding to the voltage signal is greater than a first voltage threshold and smaller than a second voltage threshold; the first voltage threshold and the second voltage threshold are respectively voltage values output by the infrared pyroelectric sensor when the distance from the infrared pyroelectric sensor to a light source of infrared light is a first distance and a second distance; the first distance is less than the second distance; if so, judging whether the waveform of the voltage signal belongs to a preset type of waveform; and when the waveform of the voltage signal belongs to the preset type of waveform, determining that the voltage signal meets the preset awakening condition.
In a preferred embodiment of the present invention, the step of waking up the mobile terminal includes: and outputting a wake-up signal to a screen of the mobile terminal and/or an unlocking device to wake up the mobile terminal, wherein the unlocking device comprises a fingerprint module and a camera.
In a preferred embodiment of the present invention, after the step of waking up the mobile terminal, the method further includes: and controlling to unlock.
In a second aspect, an embodiment of the present invention provides a device for waking up a mobile terminal, where the mobile terminal includes an infrared pyroelectric sensor, and the device includes: the receiving module is used for receiving the infrared light signal through the infrared pyroelectric sensor if the mobile terminal is in a screen locking state; the judging module is used for judging whether the infrared light signal meets a preset awakening condition or not; and the awakening module is used for awakening the mobile terminal if the mobile terminal is the mobile terminal.
In a third aspect, an embodiment of the present invention provides a mobile terminal, including an infrared pyroelectric sensor, a memory, and a processor; the infrared pyroelectric sensor comprises a converging lens, a filter layer and a pyroelectric detection element which are sequentially arranged from outside to inside; the infrared pyroelectric sensor is connected with the processor and used for outputting a wake-up signal to the processor; the memory is for storing a program for enabling the processor to perform the method of any of the first aspect, the processor being configured for executing the program stored in the memory.
Compared with the prior art, according to the mobile terminal awakening method and device and the mobile terminal provided by the embodiment of the invention, when the mobile terminal is in the standby sleep state, infrared light emitted by the human face can be passively received through the infrared pyroelectric sensor and converted into the voltage signal, the mobile terminal is awakened only when the voltage signal meets the preset awakening condition, the mobile terminal can be automatically awakened based on the received human face infrared light, energy and electricity are saved, and the standby time of the terminal can be prolonged.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a block diagram of a mobile terminal according to an embodiment of the present invention;
fig. 2 is a flowchart of a method for waking up a mobile terminal according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of an automatic wake-up system according to an embodiment of the present invention;
FIG. 4 is a schematic view of the refraction principle of the lens provided by the embodiment of the invention;
FIG. 5 is a schematic diagram of the refraction angle of a lens provided by an embodiment of the invention;
fig. 6 is a schematic diagram of a mobile terminal rotation provided by an embodiment of the present invention;
fig. 7 is a schematic diagram of a rectangular wave of a wake-up signal according to an embodiment of the present invention;
FIG. 8 is a schematic diagram of a square wave of another wake-up signal according to an embodiment of the present invention;
fig. 9 is a block diagram of a mobile terminal wake-up apparatus according to an embodiment of the present invention;
fig. 10 is a block diagram of another wake-up apparatus for a mobile terminal according to an embodiment of the present invention;
fig. 11 is a block diagram of another wake-up apparatus for a mobile terminal according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
The following embodiments of the present invention are applicable to a mobile terminal. The mobile terminal can be intelligent terminal equipment such as a mobile phone, a tablet personal computer and intelligent wearable equipment comprising an infrared pyroelectric sensor. Fig. 1 shows a block diagram of a mobile terminal according to an embodiment of the present invention, where the mobile terminal 100 includes: a Radio Frequency (RF) circuit 110, a memory 120, an input unit 130, a display unit 140, an infrared pyroelectric sensor 150, an audio circuit 160, a wireless fidelity (WiFi) module 170, a processor 180, and a power supply 190.
The RF circuit 110 may be used for receiving and transmitting signals during information transmission and reception or during a call, and in particular, receives downlink information from a network (e.g., a base station) and then sends the downlink information to the processor 180; in addition, data relating to uplink is transmitted to the base station. In general, the RF circuit 110 includes, but is not limited to, an antenna, at least one Amplifier, a transceiver, a coupler, a Low Noise Amplifier (LNA), a duplexer, and the like. In addition, the RF circuitry 110 may also communicate with networks and other devices via wireless communications. The wireless communication may use any communication standard or protocol, including but not limited to Global System for Mobile communication (GSM), General Packet Radio Service (GPRS), Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA), Long Term Evolution (LTE), email, Short Messaging Service (SMS), and the like.
The memory 120 may be configured to store software programs and modules, such as program instructions/modules corresponding to the network registration method and apparatus in the embodiment of the present invention, and the processor 180 executes various functional applications and data processing of the mobile terminal 100, such as the network registration method provided in the embodiment of the present invention, by executing the software programs and modules stored in the memory 120. The memory 120 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the mobile terminal 100, and the like. Further, the memory 120 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.
The input unit 130 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the mobile terminal 100. Specifically, the input unit 130 may include a touch panel 131 and other input devices 132. The touch panel 131, also referred to as a touch screen, may collect touch operations of a user on or near the touch panel 131 (e.g., operations of the user on or near the touch panel 131 using any suitable object or accessory such as a finger or a stylus pen), and drive the corresponding connection device according to a preset program. Alternatively, the touch panel 131 may include two parts, i.e., a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 180, and can receive and execute commands sent by the processor 180. In addition, the touch panel 131 may be implemented by various types such as a resistive type, a capacitive type, an infrared ray, and a surface acoustic wave. The input unit 130 may include other input devices 132 in addition to the touch panel 131. In particular, other input devices 132 may include, but are not limited to, one or more of a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and the like.
The display unit 140 may be used to display information input by the user or information provided to the user and various menus of the mobile terminal 100. The Display unit 140 may include a Display panel 141, and optionally, the Display panel 141 may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like. Further, the touch panel 131 can cover the display panel 141, and when the touch panel 131 detects a touch operation on or near the touch panel 131, the touch operation is transmitted to the processor 180 to determine the type of the touch event, and then the processor 180 performs processing according to the type of the touch event. Although the touch panel 131 and the display panel 141 are shown in fig. 1 as two separate components to implement the input and output functions of the mobile terminal 100, in some embodiments, the touch panel 131 and the display panel 141 may be integrated to implement the input and output functions of the mobile terminal 100.
The mobile terminal 100 may also include at least one infrared pyroelectric sensor 150 and may also include other sensors such as light sensors, motion sensors, and other sensors. Specifically, the light sensor may include an ambient light sensor that may adjust the brightness of the display panel 141 according to the brightness of ambient light, and a proximity sensor that may turn off the display panel 141 and/or a backlight when the mobile terminal 100 is moved to the ear. As one of the motion sensors, the accelerometer sensor may detect the magnitude of acceleration in each direction (generally, three axes), detect the magnitude and direction of gravity when stationary, and be used for applications (such as horizontal and vertical screen switching, related games, magnetometer attitude calibration) for recognizing the attitude of the mobile terminal 100, and related functions (such as pedometer and tapping) for vibration recognition; as for other sensors such as a gyroscope, a barometer, a hygrometer, a thermometer, and an infrared sensor, which may be further configured in the mobile terminal 100, detailed descriptions thereof are omitted.
Audio circuitry 160, speaker 161, and microphone 162 may provide an audio interface between a user and mobile terminal 100. The audio circuit 160 may transmit the electrical signal converted from the received audio data to the speaker 161, and convert the electrical signal into a sound signal for output by the speaker 161; on the other hand, the microphone 162 converts the collected sound signal into an electric signal, converts the electric signal into audio data after being received by the audio circuit 160, and then outputs the audio data to the processor 180 for processing, and then transmits the audio data to, for example, another mobile terminal 100 via the RF circuit 110, or outputs the audio data to the memory 120 for further processing.
WiFi belongs to a short-distance wireless transmission technology, and the mobile terminal 100 can help a user send and receive e-mails, browse web pages, access streaming media, and the like through the WiFi module 170, and it provides a wireless broadband internet access for the user. Although fig. 1 shows the WiFi module 170, it is understood that it does not belong to the essential constitution of the mobile terminal 100, and may be omitted entirely as needed within the scope not changing the essence of the invention.
The processor 180 is a control center of the mobile terminal 100, connects various parts of the entire mobile terminal 100 using various interfaces and lines, and performs various functions of the mobile terminal 100 and processes data by running or executing software programs and/or modules stored in the memory 120 and calling data stored in the memory 120, thereby monitoring the mobile terminal 100 as a whole. Alternatively, processor 180 may include one or more processing units; preferably, the processor 180 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 180.
The mobile terminal 100 further includes a power supply 190 (e.g., a battery) for powering the various components, which may be logically coupled to the processor 180 via a power management system that may be configured to manage charging, discharging, and power consumption.
Those skilled in the art will appreciate that the mobile terminal 100 configuration shown in fig. 1 is not intended to be limiting of the mobile terminal 100 and may include more or less components than those shown, or some components in combination, or a different arrangement of components.
The existing mobile terminal can be awakened or unlocked by using fingerprints or face recognition, the fingerprint acquisition module, the acceleration sensor or the gyroscope is in a continuous working state, so that the mobile terminal in a dormant state can be awakened in time when a user touches a fingerprint acquisition area or shakes the mobile terminal, and the power consumption is high. If the mobile terminal is unlocked in a face recognition mode, when the mobile terminal is changed in acceleration or in motion state, the front camera is awakened to take pictures, so that the mobile phone is frequently awakened to take pictures in the motion process, and power consumption is increased. Based on the consideration of energy saving, the following embodiments of the present invention provide a method for waking up a mobile terminal to reduce energy consumption during the wake-up process, which are described in detail in the following embodiments.
Before the above method is described, a brief description of infrared radiation and thermoelectric devices will be given. The human body can radiate infrared rays, and according to the heat radiation Wien displacement law: λ mT is 2898 μm · K, i.e. the wavelength corresponding to the maximum of the radiation intensity is inversely proportional to its absolute temperature. Under normal conditions, the temperature of the face area of the human body which is not covered by clothes is a fixed value and is about 37 ℃ of the normal body temperature of the human body, so according to the Wien displacement law, the infrared radiation wavelength corresponding to the maximum value of the radiation intensity of the head area and the face area of the human body which are not covered by clothes is about 9.4 μm, and the temperature of the other areas of the human body which are covered by clothes is lower than the body temperature, so the wavelength corresponding to the maximum value of the radiation intensity is more than 9.4 μm.
The thermoelectric device is a detecting element made of materials with high thermoelectric coefficient, such as lead zirconate titanate ceramic, lithium tantalate, triethylene-sulfate, etc. These materials have a pyroelectric effect, i.e. a phenomenon of charge release which is exhibited by a change in the polarization with temperature, which is macroscopically the case when the material is subjected to a change in temperatureA voltage appears across or a current is generated. The pyroelectric effect is similar to the piezoelectric effect, and the pyroelectric effect is also a natural physical effect of crystals. Delta Ps＝P△T，△PsIs spontaneous polarization intensity variation; Δ T is the temperature change; p is the pyroelectric coefficient.
Example one
Referring to a flowchart of a method for waking up a mobile terminal shown in fig. 2, the method is applied to a mobile terminal, the mobile terminal includes an infrared pyroelectric sensor, and the method includes the following steps:
step S202, if the mobile terminal is in a screen locking state, receiving an infrared light signal through an infrared pyroelectric sensor;
the human body radiates infrared rays, and under the condition of normal use of the mobile phone, the face of the human body faces the mobile terminal, so that the mobile terminal can receive the infrared rays emitted by the face. Since the body of a person is covered by clothes, the temperature of the body is lower than the temperature of the face, and as can be seen from the foregoing, the wavelength of the object radiation at different temperatures is different, so that only the infrared light with the wavelength corresponding to the temperature of the face can be received by the infrared pyroelectric sensor, for example, by selecting the infrared pyroelectric sensor with a suitable receiving wavelength range, or by providing a wavelength filtering element. Therefore, the interference of other temperature objects to the awakening process can be reduced.
When the mobile terminal is in a screen locking state, namely the screen of the mobile terminal is in an off state (a user cannot directly touch the screen), and elements used for unlocking the mobile terminal, such as a camera or a fingerprint identification module, are in a stop working state or a non-open state, or the screen is in an on state but is not unlocked, and meanwhile, elements used for unlocking the mobile terminal, such as the camera or the fingerprint identification module, are in a stop working state or a non-open state, infrared light emitted by the face of the user can be passively received through the infrared pyroelectric sensor. The infrared pyroelectric sensor does not emit any type of radiation, so that the power consumption of the device is low. The infrared light signal may be represented using a voltage signal, a current signal, or other parameter indicative of a property of the signal output by the infrared pyroelectric sensor.
Step S204, judging whether the infrared light signal meets a preset awakening condition. If yes, go to step S206; if not, the process is ended.
The preset wake-up condition may be a threshold range of the infrared light signal, or a preset type waveform of the voltage signal. The wake-up condition may be determined based on an operation performed by the user at the time of the true wake-up intention. For example, when a user wants to wake up a mobile terminal, the user usually takes the mobile terminal up to face, or shakes in front of the mobile terminal, or rotates the handheld mobile terminal, and the like, a preset wake-up condition can be determined based on the above operations, that is, the characteristics of the infrared light signal under the above operations are taken as the content of the wake-up condition, and when it is determined that the currently acquired infrared light signal meets the above characteristics, the user can be considered to have made an operation of waking up the mobile terminal, so that the false wake-up situation can be reduced.
And step S206, waking up the mobile terminal.
And awakening the mobile terminal when determining that the user wants to awaken the mobile terminal according to whether the voltage signal meets a preset awakening condition. Wherein waking up the mobile terminal may be outputting a wake-up signal to a screen and/or an unlocking device of the mobile terminal. The unlocking device can comprise a fingerprint module, a camera and the like. The above-mentioned waking action may be, for example, lighting a screen for a user to perform a touch operation (including inputting an unlocking password, selecting an unlocking mode, selecting a shortcut operation, and the like), waking up a fingerprint module to perform fingerprint acquisition, and waking up a camera to perform photographing or shooting. It will be appreciated that the screen, fingerprint or camera is in an off state or not on state prior to waking up. The infrared pyroelectric sensor with low power consumption continuously works, and a screen, a fingerprint module or a camera with high power consumption is awakened for identification and unlocking when the screen, the fingerprint module or the camera needs to be unlocked, so that the power consumption of the mobile terminal in the standby process can be reduced.
According to the method provided by the embodiment, when the mobile terminal is in the standby sleep state, infrared light emitted by the human face can be passively received through the infrared pyroelectric sensor and converted into the voltage signal, the mobile terminal is awakened only when the voltage signal meets the preset awakening condition, the mobile terminal can be automatically awakened based on the received human face infrared light, energy and power are saved, and the standby time of the terminal can be prolonged.
Generally, it is necessary to receive only infrared light of a human face and filter infrared light of other wavelengths, and a filter element may be disposed in the infrared pyroelectric sensor, and the infrared pyroelectric sensor may include a collecting lens, a filter layer and a pyroelectric detection element. After receiving the infrared light, the infrared light is converted into a voltage signal for subsequent judgment. The signal output by the infrared pyroelectric sensor is converted into a voltage signal, and the existing mode can be adopted, so that the description is omitted. The step of receiving the infrared light signal by the infrared pyroelectric sensor may include:
(1) the infrared light in the external environment is converged by the converging lens. The converging lens can intensively irradiate infrared light in an external environment onto the thermoelectric detection element, and limits the angle of the infrared light which can be irradiated onto the thermoelectric detection element, so that the infrared light in a set angle range can be triggered to wake up.
(2) The collected infrared light is filtered by the filter layer, and only the infrared light emitted from the face reaches the pyroelectric detection element. The filter layer can pass infrared light in a preset wavelength range, the preset wavelength range corresponds to the wavelength range of infrared light emitted under the normal condition of human face temperature, and for example, the light-permeable wavelength range of the filter layer can be 9-10 μm.
(3) The infrared light is converted into a voltage signal by the pyroelectric detection element, and the voltage signal is taken as an infrared light signal.
After the infrared pyroelectric sensor converts the infrared light emitted by the face into a voltage signal, whether the voltage signal meets a preset awakening condition needs to be judged. The present embodiment also provides a way to determine whether the voltage signal meets the requirements, which may be based on the threshold range of the voltage signal or based on the preset type waveform of the voltage signal. The above-described modes will be described below.
(1) Based on the threshold range of the voltage signal. And judging whether the voltage value corresponding to the voltage signal is greater than the first voltage threshold and smaller than the second voltage threshold. When the first voltage threshold and the second voltage threshold are respectively a first distance and a second distance from the infrared pyroelectric sensor to a light source of infrared light, the voltage value output by the infrared pyroelectric sensor is obtained, and the first distance is smaller than the second distance. The first distance and the second distance form a square range, which is the distance range between the face and the mobile terminal in most cases when the user normally uses the mobile terminal. And if the voltage value meets the conditions, determining that the voltage signal meets the preset awakening conditions.
(2) Based on a preset type waveform of the voltage signal. And judging whether the waveform of the voltage signal belongs to a preset type of waveform. Because infrared pyroelectric sensor can be triggered many times, a plurality of voltage signal of output to have certain wave form shape, can improve the degree of accuracy of awakening through judging this wave form shape, really reflect user's awakening intention. Different waveforms may correspond to different motion characteristics of the mobile terminal, such as shaking or rotating, etc. And if the waveform of the voltage signal meets the condition, determining that the voltage signal meets the preset awakening condition. In this case, the influence of the distance of the user's face from the mobile terminal is not considered.
(3) Based on a threshold range of the voltage signal and a preset type of waveform. Firstly, judging whether a voltage value corresponding to the voltage signal is larger than a first voltage threshold and smaller than a second voltage threshold, secondly, judging whether the waveform of the voltage signal belongs to a preset type waveform, and when the voltage value and the waveform of the voltage signal both belong to the preset type waveform, determining that the voltage signal accords with a preset awakening condition. The two judgment modes are considered at the same time, so that the awakening accuracy can be further improved.
Considering that the user needs to unlock the mobile terminal after waking up the mobile terminal, the method may further include the step of controlling the mobile terminal to unlock. The unlocking mode may be image unlocking, fingerprint unlocking, voice unlocking, password unlocking, or the like, and the image unlocking is described as an example below. The controlling of the unlocking of the mobile terminal may include: starting a camera of the mobile terminal to acquire an image; comparing the acquired image with a pre-stored image; and when the comparison is matched, controlling the mobile terminal to unlock. And when the comparison is not matched, controlling the mobile terminal to send out a prompt or an alarm.
Because mobile terminal carries out image acquisition in darker environment, the condition of gathering the failure appears easily, before carrying out image acquisition, can start mobile terminal's optical line sensors earlier and carry out the ambient light detection, if the ambient light detection result is less than ambient brightness threshold value, then control mobile terminal's leading light filling lamp or screen and open.
In order to facilitate the use of a user, the mobile terminal can be unlocked and bound with certain functions or application software, so that the functions or the application software can be quickly opened after unlocking, and the method is convenient and quick. This can be performed, for example, by:
(1) the number of high levels and/or the number of low levels of the waveform of the voltage signal are acquired.
(2) And determining unlocking operation corresponding to the high level quantity and/or the low level quantity according to a preset unlocking rule. The preset unlocking rule may be set by a user or set when the user leaves a factory, and may include a correspondence between the number of different high levels, the number of low levels, and the number of combinations of the two and the unlocking operation. The unlocking operation comprises unlocking the mobile terminal, starting application software of the mobile terminal or starting built-in functions of the mobile terminal.
(3) And controlling to execute an unlocking operation.
Example two
The method for waking up a mobile terminal provided in the above embodiment may be implemented by an automatic wake-up system, which is described in detail below.
Referring to fig. 3, the schematic diagram of the automatic wake-up system is shown, which is composed of a lens 31, a filter 32, a thermoelectric material 33 and a circuit.
Wherein, lens's effect is on refracting the thermoelectric material with light, and other light beyond the 9.4um wavelength that human head and face produced are filtered to the effect of filter coating to guarantee that the light of projecting on the thermoelectric material is the produced infrared radiation of human head and face. The wavelength range of the light transmitted by the filter film can be controlled to be 9-10 μm.
As shown in fig. 3, the pyroelectric material 33 includes two detection elements connected in series with opposite polarities, and can suppress interference due to a rise in its own temperature. The infrared radiation detected and received by the detecting element is converted into weak voltage signals, and the voltage signals are amplified by the amplifier and then sent to the two comparators for comparison. Wherein the positive terminal of the comparator A is connected with a fixed voltage signal VAWhen the distance between the signal voltage and the distance between the head and the face and the awakening system is A, the voltage value output by the amplifier is the same; the negative end of the comparator B is connected with a fixed voltage signal VBWhen the distance between the signal voltage and the distance between the head and the face from the wake-up system is B, the voltage value output by the amplifier is the same, and the comparison result of the two comparators is sent to an AND gate for AND operation. Therefore, when the distance between the head and the face of the mobile phone user and the wake-up system is greater than B and less than A, the wake-up system outputs the wake-up signal, and when the distance is less than or equal to B or greater than A, the wake-up system does not output the wake-up signal. For example, B is 10cm and A is about 1m in length of the human arm. The mobile phone is ensured to be awakened in a handheld reading state or a handheld self-shooting state.
The lens, the filter film and the thermoelectric device in fig. 3 can be designed into a rectangle, a plurality of right-angled triangular prisms are distributed along the short side direction of the lens, the right-angled sides of the small prisms are connected with the plane lens, and the other right-angled side is perpendicular to the plane lens and symmetrically arranged with the horizontal center of the plane lens. The upper side of the lens is a plane, and the lower side of the lens is a sawtooth shape. Here, a circular lens may be used. For example, a portion of the screen of the mobile terminal may be used as a planar lens, so that the lens as a whole does not lie in the plane of the screen. If the thickness of the lens exceeds the plane of the screen, the number of the right-angle triangular prisms can be increased, and the height of each right-angle triangular prism can be reduced. For example, if the wake-up system is installed under a mobile phone screen, the planar lens in fig. 3 is the mobile phone screen, the long sides of the planar lens are arranged along the short sides of the mobile phone, and the right-angled triangular prism is arranged along the long sides of the mobile phone.
Referring to the schematic view of the refraction principle of the lens shown in fig. 4, when infrared rays emitted by a human body enter the right-angle side of the prism from the upper surface plane of the lens perpendicularly, the rays are not refracted, and when the rays are emitted from the oblique side of the prism, the rays are refracted. Since the refractive index of the outside air is smaller than that of the lens, the exit angle is larger than the incident angle, and the light rays will converge toward the middle. Referring to the schematic diagram of the refraction angle of the lens shown in fig. 5, the angles of the small triangular prisms can be set, so that light can be refracted to the thermoelectric device only in a small range perpendicular to the horizontal direction of the lens, the angle of light capable of entering the thermoelectric device is limited, and the precision of the identification awakening action is improved.
Referring to the rotation diagram of the mobile terminal shown in fig. 6, when a human body passes in front of the screen along the short side of the terminal and moves into the angle range shown in fig. 5, the wake-up system can output a wake-up signal. If the user repeatedly passes through the terminal, for example, the terminal shakes in front of the face of the user, the wake-up signal is repeatedly output, and the rectangular wave diagram of the wake-up signal shown in fig. 7 can be seen; for example, when the terminal uses the long side as the Y axis and repeatedly rotates around the Y axis in a small range, the wake-up signal is also repeatedly output, as shown in the schematic diagram of a rectangular wave of the wake-up signal shown in fig. 8, in which the infrared light of the face sequentially enters the detecting element on one side, the gap, and the detecting element on the other side during rotation. The terminal can judge the waveform of the wake-up signal, and if the waveform accords with a preset waveform type, the terminal performs wake-up operation. When the mobile terminal wakes up, the application software or the built-in function of the mobile terminal can also be started quickly, for example, a quick start command of a user can be determined by setting the corresponding relation between the different high level numbers, the different low level numbers and the number of the combination of the two and the unlocking operation. Taking fig. 7 as an example, which includes 4 high level signals, the 4 high level signals may be set to correspond to the dial function being activated; for example, there are only 2 high signals, which may correspond to unlocking the handset only, there are only 3 high signals, which may correspond to opening the WeChat, etc. It is understood that the corresponding relationship between the low level signal and the unlocking operation can be used for quick unlocking.
According to the method and the automatic wake-up system provided by the embodiment, the wake-up signal and the waveform of the wake-up signal can be output by the automatic wake-up system, and the mobile terminal is waken up only when the waveform of the output wake-up signal or the waveform of the wake-up signal conforms to the preset waveform type, so that energy and power are saved, and the standby time of the terminal can be prolonged.
Example three:
fig. 9 shows a block diagram of a structure of a wake-up apparatus of a mobile terminal according to an embodiment of the present invention, where the mobile terminal includes an infrared pyroelectric sensor, and includes:
the receiving module 91 is configured to receive an infrared light signal through an infrared pyroelectric sensor if the mobile terminal is in a screen locking state;
the judging module 92 is configured to judge whether the infrared light signal meets a preset wake-up condition;
and a wake-up module 93, configured to wake up the mobile terminal if yes.
The infrared pyroelectric sensor comprises a converging lens, a filter layer and a pyroelectric detection element; the receiving module 91 is further configured to: converging infrared light in an external environment through a converging lens; filtering the collected infrared light through a filter layer, and only enabling the infrared light emitted from the face to reach the pyroelectric detection element; the infrared light is converted into a voltage signal by the pyroelectric detection element, and the voltage signal is taken as an infrared light signal.
The determining module 92 is further configured to: judging whether a voltage value corresponding to the voltage signal is greater than a first voltage threshold and smaller than a second voltage threshold; the first voltage threshold and the second voltage threshold are respectively voltage values output by the infrared pyroelectric sensor when the distance from the infrared pyroelectric sensor to a light source of infrared light is a first distance and a second distance; the first distance is less than the second distance; if so, determining that the voltage signal meets the preset awakening condition.
The determining module 92 is further configured to: judging whether the waveform of the voltage signal belongs to a preset type of waveform; if so, determining that the voltage signal meets the preset awakening condition.
The determining module 92 is further configured to: judging whether a voltage value corresponding to the voltage signal is greater than a first voltage threshold and smaller than a second voltage threshold; the first voltage threshold and the second voltage threshold are respectively voltage values output by the infrared pyroelectric sensor when the distance from the infrared pyroelectric sensor to a light source of infrared light is a first distance and a second distance; the first distance is less than the second distance; if so, judging whether the waveform of the voltage signal belongs to a preset type of waveform; and when the waveform of the voltage signal belongs to the preset type of waveform, determining that the voltage signal meets the preset awakening condition.
The wake-up module 93 is further configured to: and outputting a wake-up signal to a screen and/or an unlocking device of the mobile terminal to wake up the mobile terminal. The unlocking device can comprise a fingerprint module, a camera and the like.
Fig. 10 is a block diagram illustrating a structure of another wake-up apparatus for a mobile terminal according to an embodiment of the present invention, where the wake-up apparatus further includes: and the unlocking module 10 is used for controlling unlocking.
The unlocking module 10 is further configured to: acquiring the high level number and/or the low level number of the waveform of the voltage signal; determining unlocking operations corresponding to the high level quantity and/or the low level quantity according to a preset unlocking rule, wherein the unlocking operations comprise unlocking the mobile terminal, starting application software of the mobile terminal or starting built-in functions of the mobile terminal; and controlling to execute an unlocking operation.
The unlocking module 10 is further configured to: starting a camera of the mobile terminal to acquire an image; comparing the acquired image with a pre-stored image; and when the comparison is matched, controlling to unlock.
Fig. 11 is a block diagram illustrating a structure of another wake-up apparatus for a mobile terminal according to an embodiment of the present invention, where the apparatus further includes: the light supplementing module 11 is used for starting a light sensor of the mobile terminal to perform ambient light detection; and when the ambient light detection result is smaller than the ambient brightness threshold value, controlling a front supplementary lighting lamp or a screen of the mobile terminal to be turned on.
The filter layer has a light transmission wavelength range of 9-10 μm.
The above-mentioned device that this embodiment provided, when mobile terminal was in standby sleep state, can receive the infrared light of human facial emission passively through infrared pyroelectric sensor to convert it into voltage signal, awaken mobile terminal only when this voltage signal accords with the awakening condition of predetermineeing, can awaken automatically based on the human facial infrared light of receipt, energy-conserving power saving, thereby can prolong the standby time at terminal.
The embodiment also provides a mobile terminal, which comprises an infrared pyroelectric sensor, a memory and a processor; the infrared pyroelectric sensor comprises a converging lens, a filter layer and a pyroelectric detection element which are sequentially arranged from outside to inside; the infrared pyroelectric sensor is connected with the processor and used for outputting a wake-up signal to the processor; the memory is used for storing programs that support the processor to execute the methods provided by the above embodiments, and the processor is configured to execute the programs stored in the memory.
The converging lens can comprise a plurality of parallel right-angled triangular prisms, one right-angled side of each right-angled triangular prism is parallel to the filter layer, and the refraction direction of each right-angled triangular prism faces the filter layer; alternatively, the converging lens may be a circular lens having a converging direction toward the filter layer.
The present embodiment also provides a computer storage medium for storing computer software instructions for the apparatus provided in the above embodiments.
It should be noted that, in the present specification, the embodiments are all described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other. The implementation principle and the generated technical effect of the mobile terminal wake-up and the mobile terminal provided by the embodiment of the invention are the same as those of the method embodiment, and for brief description, no part of the embodiment of the apparatus is mentioned, and reference may be made to the corresponding contents in the method embodiment.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method can be implemented in other ways. The apparatus embodiments described above are merely illustrative, and for example, the flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of apparatus, methods and computer program products according to various embodiments of the present invention. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures.
In addition, each functional module or unit in each embodiment of the present invention may be integrated together to form an independent part, or each module may exist separately, or two or more modules may be integrated to form an independent part.
The functions, if implemented in the form of software functional modules and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
The embodiment of the invention also discloses:
A1. a mobile terminal wake-up method, the mobile terminal including an infrared pyroelectric sensor, the method comprising:
if the mobile terminal is in a screen locking state, receiving an infrared light signal through the infrared pyroelectric sensor;
judging whether the infrared light signal meets a preset awakening condition or not;
and if so, waking up the mobile terminal.
A2. The method of a1, the infrared pyroelectric sensor comprising a converging lens, a filter layer and a pyroelectric detection element; the step of receiving an infrared light signal by the infrared pyroelectric sensor includes:
the infrared light in the external environment is converged through the converging lens;
filtering the collected infrared light through the filter layer, so that only the infrared light emitted from the face reaches the thermoelectric detection element;
converting the infrared light into a voltage signal by the pyroelectric detection element, and taking the voltage signal as an infrared light signal.
A3. According to the method of a2, the step of determining whether the infrared light signal meets a preset wake-up condition includes:
judging whether a voltage value corresponding to the voltage signal is greater than a first voltage threshold and smaller than a second voltage threshold; the first voltage threshold and the second voltage threshold are respectively voltage values output by the infrared pyroelectric sensor when the distance between the infrared pyroelectric sensor and the light source of the infrared light is a first distance and a second distance; the first distance is less than the second distance;
and if so, determining that the voltage signal meets a preset awakening condition.
A4. According to the method of a2, the step of determining whether the infrared light signal meets a preset wake-up condition includes:
judging whether the waveform of the voltage signal belongs to a preset type of waveform;
and if so, determining that the voltage signal meets a preset awakening condition.
A5. According to the method of a2, the step of determining whether the infrared light signal meets a preset wake-up condition includes:
judging whether a voltage value corresponding to the voltage signal is greater than a first voltage threshold and smaller than a second voltage threshold; the first voltage threshold and the second voltage threshold are respectively voltage values output by the infrared pyroelectric sensor when the distance between the infrared pyroelectric sensor and the light source of the infrared light is a first distance and a second distance; the first distance is less than the second distance;
if so, judging whether the waveform of the voltage signal belongs to a preset type of waveform;
and when the waveform of the voltage signal belongs to the preset type of waveform, determining that the voltage signal meets a preset awakening condition.
A6. The method according to a1 or a2, the step of waking up the mobile terminal comprising: and outputting a wake-up signal to a screen of the mobile terminal and/or an unlocking device to wake up the mobile terminal, wherein the unlocking device comprises a fingerprint module and a camera.
A7. The method according to a1 or a2, further comprising, after the step of waking up the mobile terminal: and controlling to unlock.
A8. The method of a7, the controlling unlocking step comprising:
acquiring the high level number and/or the low level number of the waveform of the voltage signal;
according to a preset unlocking rule, unlocking operations corresponding to the high level quantity and/or the low level quantity are determined, wherein the unlocking operations comprise unlocking the mobile terminal, starting application software of the mobile terminal or starting built-in functions of the mobile terminal;
and controlling to execute the unlocking operation.
A9. The method of a7, the controlling unlocking step comprising:
starting a camera of the mobile terminal to acquire an image;
comparing the acquired image with a pre-stored image;
and when the comparison is matched, controlling to unlock.
A10. According to the method of a9, before the step of starting the camera of the mobile terminal for image acquisition, the method further comprises:
starting a light sensor of the mobile terminal to detect ambient light;
and when the ambient light detection result is smaller than the ambient brightness threshold value, controlling a front supplementary lighting lamp or a screen of the mobile terminal to be turned on.
A11. The method according to A2, wherein the filter layer has a light transmission wavelength range of 9-10 μm.
B12. A mobile terminal wake-up apparatus, the mobile terminal including an infrared pyroelectric sensor, the apparatus comprising:
the receiving module is used for receiving an infrared light signal through the infrared pyroelectric sensor if the mobile terminal is in a screen locking state;
the judging module is used for judging whether the infrared light signal meets a preset awakening condition or not;
and the awakening module is used for awakening the mobile terminal if the mobile terminal is in the idle state.
B13. The apparatus of B12, the infrared pyroelectric sensor comprising a converging lens, a filter layer and a pyroelectric detection element; the receiving module is further configured to:
the infrared light in the external environment is converged through the converging lens;
filtering the collected infrared light through the filter layer, so that only the infrared light emitted from the face reaches the thermoelectric detection element;
converting the infrared light into a voltage signal by the pyroelectric detection element, and taking the voltage signal as an infrared light signal.
B14. The apparatus of B13, the determining module further configured to:
judging whether a voltage value corresponding to the voltage signal is greater than a first voltage threshold and smaller than a second voltage threshold; the first voltage threshold and the second voltage threshold are respectively voltage values output by the infrared pyroelectric sensor when the distance between the infrared pyroelectric sensor and the light source of the infrared light is a first distance and a second distance; the first distance is less than the second distance;
and if so, determining that the voltage signal meets a preset awakening condition.
B15. The apparatus of B13, the determining module further configured to:
judging whether the waveform of the voltage signal belongs to a preset type of waveform;
and if so, determining that the voltage signal meets a preset awakening condition.
B16. The apparatus of B13, the determining module further configured to:
judging whether a voltage value corresponding to the voltage signal is greater than a first voltage threshold and smaller than a second voltage threshold; the first voltage threshold and the second voltage threshold are respectively voltage values output by the infrared pyroelectric sensor when the distance between the infrared pyroelectric sensor and the light source of the infrared light is a first distance and a second distance; the first distance is less than the second distance;
if so, judging whether the waveform of the voltage signal belongs to a preset type of waveform;
and when the waveform of the voltage signal belongs to the preset type of waveform, determining that the voltage signal meets a preset awakening condition.
B17. The apparatus of B12 or B13, the wake-up module further to: and outputting a wake-up signal to a screen of the mobile terminal and/or an unlocking device to wake up the mobile terminal, wherein the unlocking device comprises a fingerprint module and a camera.
B18. The apparatus of B12 or B13, the apparatus further comprising: and the unlocking module is used for controlling unlocking.
B19. The apparatus of B18, the unlocking module further configured to:
acquiring the high level number and/or the low level number of the waveform of the voltage signal;
according to a preset unlocking rule, unlocking operations corresponding to the high level quantity and/or the low level quantity are determined, wherein the unlocking operations comprise unlocking the mobile terminal, starting application software of the mobile terminal or starting built-in functions of the mobile terminal;
and controlling to execute the unlocking operation.
B20. The apparatus of B18, the unlocking module further configured to:
starting a camera of the mobile terminal to acquire an image;
comparing the acquired image with a pre-stored image;
and when the comparison is matched, controlling to unlock.
B21. The apparatus of B20, the apparatus further comprising:
the light supplementing module is used for starting a light sensor of the mobile terminal to perform ambient light detection; and when the ambient light detection result is smaller than the ambient brightness threshold value, controlling a front supplementary lighting lamp or a screen of the mobile terminal to be turned on.
B22. The device according to B13, wherein the filter layer has a light transmission wavelength range of 9-10 μm.
C23. A mobile terminal comprises an infrared pyroelectric sensor, a memory and a processor;
the infrared pyroelectric sensor comprises a converging lens, a filter layer and a pyroelectric detection element which are sequentially arranged from outside to inside;
the infrared pyroelectric sensor is connected with the processor and used for outputting a wake-up signal to the processor;
the memory is for storing a program that enables the processor configured to execute the program stored in the memory to perform the method of any one of a1 to a10.
C24. The mobile terminal of C23, wherein the converging lens comprises a plurality of right triangle prisms arranged side by side, one leg of each right triangle prism is parallel to the filter layer, and a refraction direction of each right triangle prism is toward the filter layer; alternatively, the first and second electrodes may be,
the converging lens is a circular lens, and the converging direction of the circular lens faces the filter layer.
D25. A computer storage medium storing computer software instructions for use with an apparatus according to any one of B12 to B22.

Claims (9)

1. A mobile terminal awakening method is characterized in that the mobile terminal comprises an infrared pyroelectric sensor, and the method comprises the following steps:
if the mobile terminal is in a screen locking state, receiving an infrared light signal through the infrared pyroelectric sensor; the infrared pyroelectric sensor is provided with a filtering element for ensuring that the infrared pyroelectric sensor only receives infrared rays with a wavelength corresponding to the temperature of the face;
judging whether the infrared light signal meets a preset awakening condition or not;
if yes, awakening the mobile terminal;
the step of receiving an infrared light signal by the infrared pyroelectric sensor comprises the step of converting the infrared light signal into a voltage signal by the infrared pyroelectric sensor;
the step of judging whether the infrared light signal meets a preset awakening condition comprises the following steps:
judging whether a voltage value corresponding to the voltage signal is greater than a first voltage threshold and smaller than a second voltage threshold; the first voltage threshold and the second voltage threshold are respectively voltage values output by the infrared pyroelectric sensor when the distance between the infrared pyroelectric sensor and the light source of the infrared light is a first distance and a second distance; the first distance is less than the second distance;
if so, judging whether the waveform of the voltage signal belongs to a preset type of waveform;
and when the waveform of the voltage signal belongs to the preset type of waveform, determining that the voltage signal meets a preset awakening condition.
2. The method of claim 1, wherein the infrared pyroelectric sensor comprises a focusing lens, a filter layer and a pyroelectric detection element; the step of receiving an infrared light signal by the infrared pyroelectric sensor includes:
the infrared light in the external environment is converged through the converging lens;
filtering the collected infrared light through the filter layer, so that only the infrared light emitted from the face reaches the thermoelectric detection element;
converting the infrared light into a voltage signal by the pyroelectric detection element, and taking the voltage signal as an infrared light signal.
3. The method of claim 2, wherein the step of determining whether the infrared light signal meets a preset wake-up condition comprises:
judging whether a voltage value corresponding to the voltage signal is greater than a first voltage threshold and smaller than a second voltage threshold; the first voltage threshold and the second voltage threshold are respectively voltage values output by the infrared pyroelectric sensor when the distance between the infrared pyroelectric sensor and the light source of the infrared light is a first distance and a second distance; the first distance is less than the second distance;
and if so, determining that the voltage signal meets a preset awakening condition.
4. The method of claim 2, wherein the step of determining whether the infrared light signal meets a preset wake-up condition comprises:
judging whether the waveform of the voltage signal belongs to a preset type of waveform;
and if so, determining that the voltage signal meets a preset awakening condition.
5. The method according to claim 1 or 2, wherein the step of waking up the mobile terminal comprises: and outputting a wake-up signal to a screen of the mobile terminal and/or an unlocking device to wake up the mobile terminal, wherein the unlocking device comprises a fingerprint module and a camera.
6. Method according to claim 1 or 2, characterized in that after said step of waking up the mobile terminal, the method further comprises: and controlling to unlock.
7. The method of claim 6, wherein the step of controlling unlocking comprises:
acquiring the high level number and/or the low level number of the waveform of the voltage signal;
according to a preset unlocking rule, unlocking operations corresponding to the high level quantity and/or the low level quantity are determined, wherein the unlocking operations comprise unlocking the mobile terminal, starting application software of the mobile terminal or starting built-in functions of the mobile terminal;
and controlling to execute the unlocking operation.
8. A mobile terminal awakening device is characterized in that the mobile terminal comprises an infrared pyroelectric sensor, the infrared pyroelectric sensor is provided with a filtering element, and the filtering element is used for ensuring that the infrared pyroelectric sensor only receives infrared rays with a wavelength corresponding to the temperature of the face; the device comprises:
the receiving module is used for receiving an infrared light signal through the infrared pyroelectric sensor if the mobile terminal is in a screen locking state; after receiving an infrared light signal through the infrared pyroelectric sensor, converting the infrared light signal into a voltage signal through the infrared pyroelectric sensor;
the judging module is used for judging whether the infrared light signal meets a preset awakening condition or not;
the awakening module is used for awakening the mobile terminal if the mobile terminal is in the idle state;
the judging module is also used for: judging whether a voltage value corresponding to the voltage signal is greater than a first voltage threshold and smaller than a second voltage threshold; the first voltage threshold and the second voltage threshold are respectively voltage values output by the infrared pyroelectric sensor when the distance between the infrared pyroelectric sensor and the light source of the infrared light is a first distance and a second distance; the first distance is less than the second distance; if so, judging whether the waveform of the voltage signal belongs to a preset type of waveform; and when the waveform of the voltage signal belongs to the preset type of waveform, determining that the voltage signal meets a preset awakening condition.
9. A mobile terminal is characterized by comprising an infrared pyroelectric sensor, a memory and a processor;
the infrared pyroelectric sensor comprises a converging lens, a filter layer and a pyroelectric detection element which are sequentially arranged from outside to inside;
the infrared pyroelectric sensor is connected with the processor and used for outputting a wake-up signal to the processor;
the memory is for storing a program that enables a processor configured to execute the program stored in the memory to perform the method of any one of claims 1 to 7.
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