CN114205442B - Vision protection device for mobile terminal, control method and device - Google Patents
Vision protection device for mobile terminal, control method and device Download PDFInfo
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- CN114205442B CN114205442B CN202110969567.XA CN202110969567A CN114205442B CN 114205442 B CN114205442 B CN 114205442B CN 202110969567 A CN202110969567 A CN 202110969567A CN 114205442 B CN114205442 B CN 114205442B
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- 230000004438 eyesight Effects 0.000 title claims abstract description 62
- 238000000034 method Methods 0.000 title claims abstract description 53
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- 206010015946 Eye irritation Diseases 0.000 description 1
- 206010070834 Sensitisation Diseases 0.000 description 1
- 206010047513 Vision blurred Diseases 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/22—Illumination; Arrangements for improving the visibility of characters on dials
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
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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
- H04M1/72403—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality
- H04M1/72409—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality by interfacing with external accessories
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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
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/10—Controlling the intensity of the light
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- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
Abstract
The invention relates to a vision protection device for a mobile terminal, a control method and a control device, wherein the method comprises the following steps: step S100, acquiring the current ambient light brightness acquired by a photosensitive element, wherein the photosensitive element is positioned in a photosensitive hole groove in the middle area of a shell, the photosensitive surface faces to the outer side of the shell, and the whole shell is sheet-shaped and is used for being attached to the back surface of a mobile terminal; step S200, judging whether the current ambient light brightness is smaller than a first threshold value; if less than the first threshold, executing step S300; step S300, outputting ambient light control signals to the plurality of light emitting elements to drive a plurality of light emitting elements to emit light and/or change brightness, so as to provide ambient light with preset brightness, so that the current ambient light brightness matches with the predetermined mobile terminal screen brightness. On the premise of improving user experience, the visual health of the user when the user uses the mobile phone in a dim light environment is improved.
Description
Technical Field
The invention relates to the technical field of vision protection of mobile terminals, in particular to a vision protection device, a control method and a control device for a mobile terminal.
Background
With the popularization of mobile terminal electronic devices such as mobile phones and tablets, more and more people suffer from eye discomfort symptoms such as asthenopia, eye irritation, eye redness, blurred vision and the like. Referring to fig. 1, one important cause of these symptoms is that users use the electronic device 1' in such environments for a long time: the brightness of the screen of the electronic device 1 'is higher than the background brightness of the electronic device 1' so that a bright area is formed on the screen side of the electronic device 1', but a dark area is formed on the back side of the electronic device 1', which causes an imbalance between the brightness of the screen and the background brightness of the electronic device. Because the pupil size regulated by eyes of a user according to the background environment and the brightness of the display screen are not suitable in the environment, the eyes of the user can easily feel tired after staring at the display screen for reading for a long time, and visual health is affected.
Taking a mobile phone as an example, the mobile phone is taken as an intelligent mobile terminal, and besides a display screen, a plurality of sensors and luminous elements are integrated, wherein the intelligent mobile terminal comprises a light sensor arranged near a receiver on the front side of the mobile phone and a flash lamp arranged on the back side of the mobile phone. In the prior art for primarily solving the problem that the brightness of the screen is not coordinated with the background brightness, a light sensor arranged near the receiver is used for monitoring the brightness of the surrounding environment, and then the brightness of the screen is automatically adjusted according to the detection value. However, this solution also causes visual fatigue when the brightness of the screen is reduced to approach the limit value, and when the screen is used in a dark environment, the light sensor also receives the light of the display screen reflected by the face of the user, so that the brightness of the background environment cannot be accurately reflected, and it is difficult to accurately coordinate the brightness between the screen and the background.
In a further solution: for the light sensor, a plurality of sensors are adopted to sense the environmental light intensity, so that the hardware cost is obviously increased, and on the other hand, the arrangement of the plurality of sensors occupies a large space, so that the light sensor is inconvenient for a user to hold and misjudge the environmental light intensity due to the shielding of the hand of the user. The flashlight arranged on the back of the mobile phone is utilized in a superimposed mode for supplementing the ambient light, namely, the flashlight is automatically turned on according to the detection value of the brightness of the surrounding environment to carry out light supplementing and coordination on the brightness between the screen and the background. However, the general purpose of the flash lamp is a flashlight or photographing light filling, which is mainly suitable for illuminating a medium-and-long distance object, and is fixedly arranged at the edge or corner of the back of the mobile phone, so that on one hand, the light filling is uneven left and right, and on the other hand, if no proper reflecting surface exists, the light filling intensity is easy to be too high or too low, therefore, the inherent flash lamp of the mobile phone is utilized for light filling to coordinate the brightness of the screen, and the visual health of the user still cannot be fully ensured.
In addition, the mobile phone market is very competitive, and there are various severe design requirements for mobile phones, such as mobile phone thickness, mobile phone weight and anti-drop properties related to portability, in order to maintain competitiveness, and the internal design space of mobile phones is also very limited in order to promote endurance.
Therefore, how to propose such a solution remains a highly difficult challenge: the method is suitable for various types of mobile phones, and improves the visual health of users when using the mobile phones in a dim light environment on the premise of not obviously damaging the original performances of the mobile phones.
Disclosure of Invention
Based on the above-mentioned current situation, the main purpose of the present invention is to provide a vision protection device, control method and device for a mobile terminal, so as to improve the visual health of a user when using a mobile phone in a dim light environment on the premise of improving the user experience.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
a control method of a vision protection device for attaching to a back surface of a mobile terminal, comprising: the control method comprises the steps of: step S100, acquiring the current ambient light brightness acquired by the photosensitive element, wherein the photosensitive element is positioned in a photosensitive hole groove in the middle area of the shell, the photosensitive surface faces to the outer side of the shell, and the whole shell is sheet-shaped and is used for being attached to the back surface of the mobile terminal; step S200, judging whether the current ambient light brightness is smaller than a first threshold value; if the threshold value is smaller than the first threshold value, executing step S300; and step S300, outputting ambient light control signals to the plurality of light emitting elements to drive a plurality of light emitting elements to emit light and/or change brightness so as to provide ambient light with preset brightness, so that the current ambient brightness is matched with the preset mobile terminal screen brightness, wherein the plurality of light emitting elements are respectively positioned at the periphery of the photosensitive element, and the light emitting surface faces the outer side of the shell.
Preferably, after the step S300, the control method further includes: step S400, outputting a screen brightness control signal to the mobile terminal so that the mobile terminal can adjust the screen brightness to the preset screen brightness of the mobile terminal.
Preferably, after the step S300, the control method further includes: step S500, closing the photosensitive element; step S610, periodically activating the photosensitive element, and returning to step S100.
Preferably, after the step S300, the control method further includes: step S500, closing the photosensitive element; step S710, periodically starting the photosensitive element; step S720, during the starting of the photosensitive element, acquiring the current ambient light brightness acquired by the photosensitive element; step S730, determining whether the current ambient light brightness is greater than a second threshold; if so, executing step S740, wherein the second threshold is greater than the first threshold; step S740, outputting an ambient light down-regulation control signal to the plurality of light emitting elements to down-regulate the light emitting brightness of a plurality of light emitting elements and/or turn off at least one of the plurality of light emitting elements; and returning to step S720, step S730 and step S740 until the current ambient light level is less than the second threshold or all light emitting elements have been turned off.
Preferably, when the plurality of light emitting elements are all turned off, if the current ambient light level is greater than the second threshold value at the time of performing step S730, step S750 is performed; step S750, outputting a control signal for up-regulating the screen brightness to the mobile terminal, so as to up-regulate the screen brightness of the mobile terminal. Preferably, before the step S100, the method further includes: and receiving the first threshold and the second threshold sent by the mobile terminal, wherein the first threshold and the second threshold are input in the mobile terminal by a user, or the first threshold and the second threshold are sent to the mobile terminal by a cloud.
The present invention also provides a control device of a vision protection device for attachment to a mobile terminal, comprising: the casing, sensitization component and a plurality of light emitting component, controlling means includes: the environment brightness acquisition module is used for acquiring the current environment brightness acquired by the photosensitive element, wherein the photosensitive element is positioned in a photosensitive hole groove in the middle area of the shell, the photosensitive surface faces to the outer side of the shell, and the whole shell is sheet-shaped and is used for being attached to the back surface of the mobile terminal; the threshold judging module is used for judging whether the current ambient light brightness is smaller than a first threshold; if the first threshold is smaller than the first threshold, running the ambient light control module; and the ambient light control module is used for outputting ambient light control signals to the plurality of light emitting elements so as to drive a plurality of light emitting elements to emit light and/or change brightness, so as to provide ambient light with preset brightness, and the current ambient light brightness is matched with the preset mobile terminal screen brightness, wherein the plurality of light emitting elements are respectively positioned at the periphery of the photosensitive element, and the light emitting surface faces the outer side of the shell.
Preferably, the control device further includes: the screen brightness control module is used for outputting a screen brightness control signal to the mobile terminal so that the mobile terminal can adjust the screen brightness to the preset screen brightness of the mobile terminal; the threshold judging module is further used for judging whether the current ambient light brightness is smaller than a first threshold; if the screen brightness is smaller than the first threshold value, the screen brightness control module is also operated.
Preferably, the control device further includes: the threshold receiving module is configured to receive the first threshold sent by the mobile terminal, where the first threshold is input by a user in the mobile terminal, or the first threshold is sent to the mobile terminal by a cloud.
The present invention also provides a vision protection device for attaching to a back surface of a mobile terminal, comprising: the light emitting device comprises a shell, a photosensitive element, a plurality of light emitting elements and a control circuit board, wherein the control circuit board is configured to execute a program or a functional circuit to realize any control method.
[ beneficial effects ]
According to the vision protection device for the mobile terminal, the control method and the control device, the vision protection device is used for being attached to the back face of the mobile terminal, the control method is used for a control circuit board in the vision protection device, current ambient light brightness collected by the photosensitive elements is obtained, when the current ambient light brightness is smaller than a first threshold value, the plurality of luminous elements are driven to provide ambient light with preset brightness, and the screen of the mobile terminal is controlled to be adjusted to the brightness of a preset interval. Therefore, the brightness of the environment can be better matched with the brightness of the screen; and on one hand, the light emitting elements are driven to generate the ambient light with preset brightness, and on the other hand, the screen brightness is adjusted downwards, so that the excessive ambient light is not required to be generated to match the screen brightness, the overall power consumption is reduced (the light emitting elements do not need to be excessively bright and the screen brightness is adjusted downwards), namely, the cruising ability of the mobile phone is not obviously damaged, and therefore, the visual health of a user when the mobile phone is used in a dark environment is improved on the premise of improving the user experience.
In addition, the vision protection device is used for being attached to the back of the mobile terminal, so that the vision protection device can be attached to the back of various mobile terminals, for example, a camera matrix on the back of the mobile terminal or an area of the back of the mobile terminal corresponding to the wireless charging coil is avoided, and user experience is improved; it should be noted that, compared with the mode of fixing by adopting the mobile phone shell, the embodiment of the invention adopts the attaching mode to fix the vision protection device and the mobile terminal, so that the vision protection device can be adapted to mobile terminals with different sizes, and different mobile phone shells do not need to be prepared for the mobile terminals with different sizes, thereby reducing the die sinking cost and facilitating the attachment of the vision protection device.
The whole shell is in a flake shape, so that the shell is not obviously protruded out of the back of the mobile terminal after being attached to the back of the mobile terminal, and can be conveniently inserted into flat storage spaces such as trousers bags and the like; and when the mobile terminal falls down and slides in a posture that the back face is downward, the force arm corresponding to the side impact force of the shell is small, so that the vision protection device is difficult to fall off from the mobile terminal, and the service life of the vision protection device is prolonged.
Since the photosensitive element is positioned in the photosensitive hole groove in the middle area of the shell, and the plurality of light-emitting elements are positioned at the side of the shell and the light-emitting surface faces the outer side of the shell, the light source of the light-emitting element can be reduced from directly irradiating the photosensitive element, that is, the interference of the light-emitting element on the detection of the photosensitive element can be avoided.
Other advantages of the present invention will be set forth in the description of specific technical features and solutions, by which those skilled in the art should understand the advantages that the technical features and solutions bring.
Drawings
Embodiments according to the present invention will be described below with reference to the accompanying drawings. In the figure:
FIG. 1 is a schematic view of a scenario in which a user uses a mobile terminal;
fig. 2 is a schematic structural diagram of a vision protection device according to the present embodiment attached to a back surface of a mobile terminal;
fig. 3 is a schematic view of the overall structure of a vision protection device according to the present embodiment;
fig. 4 is a flowchart of a control method of the vision protection device disclosed in this embodiment;
fig. 5 is a flowchart of a method for controlling driving of a light emitting element according to the present embodiment;
fig. 6 is a flowchart of another method for controlling driving of a light emitting element according to the present embodiment;
fig. 7 is a schematic structural diagram of a control device of a vision protection device according to the present embodiment.
Detailed Description
In order to improve visual health of a user when using a mobile phone in a dim light environment on the premise of improving user experience, the embodiment discloses a control method of a vision protection device, please refer to fig. 2, which is a schematic structural diagram of the vision protection device attached to the back of a mobile terminal disclosed in the embodiment, wherein the vision protection device 2 is used for being attached to the back of the mobile terminal 1. In a preferred embodiment, the vision protection device 2 is used to be attached to the back surface center area, in particular, may be attached to the back surface of the mobile terminal 1 centrally in the left-right direction. Specifically, the adhesive may be detachably attached to the back surface of the mobile terminal 1 by means of a clip, an adhesive, or an adsorption. The back of the mobile terminal 1 may be referred to as the back of the housing of the mobile terminal 1 itself, or may be the back of a currently popular, user-installed anti-shatter or decorative protective housing for the mobile terminal 1.
Regarding the manner of electrical connection of the vision protection device 2 and the mobile terminal 1, in one embodiment, the vision protection device 2 may be electrically connected to the mobile terminal through the flexible flat cable 31 and the connector 32, specifically, the vision protection device 2 may perform data interaction with the mobile terminal through the flexible flat cable 31 and the connector 32, and may also take electricity from the mobile terminal through the flexible flat cable 31 and the connector 32, where the connector 32 may be, for example, a type C interface, a mini USB interface, and the like, specifically, depending on the interface type of the mobile terminal itself. In another embodiment, the vision protection device 2 may also be in wireless data transmission with the mobile terminal 1. In other embodiments, the flexible flat cable 31 and the connector 32 can only provide power for the vision protection device 2; the vision protection device 2 may also incorporate a battery.
In this embodiment, please refer to fig. 3, which is a schematic diagram of an overall structure of a vision protection device disclosed in this embodiment, the vision protection device 2 is independent with respect to the mobile terminal before being attached to the back of the mobile terminal, and in a specific embodiment, the vision protection device includes: a case 10, a photosensitive element 20, a plurality of light emitting elements 30, and a control circuit board (reference numerals not shown); the control circuit board is located in the housing 10, and the photosensitive element 20 and the plurality of light emitting elements 30 are disposed on the control circuit board.
In particular embodiments, the photosensitive element 20 may be a single photosensitive diode, i.e., multiple photosensitive elements 20 need not be employed. The light emitting element 30 is used to emit light to the back side of the mobile terminal 1 to enhance the brightness of the ambient light on the back side of the mobile terminal 1. In particular, the light emitting element 30 is preferably an LED lamp bead.
The control circuit board is used for providing a driving circuit, a control circuit and a bearing platform for the photosensitive element 20 and the light emitting element 30, and is also used for providing a mounting surface for mounting the vision protection device 2. One surface of the control circuit board back shell 10 and the end surface of the shell 10 adjacent to the control circuit board are used for being attached and fixed with the back surface of the mobile terminal 1, so that the area of the mounting surface can be increased, and the attaching firmness is improved.
Further, a male head 51 is provided at one end of the connector 32, the male head 51 is used for connecting with a side interface of the mobile terminal 1, a switching circuit structure for connecting the male head 51 and the flat cable 31 is provided inside the connector 32, and the flat cable 31 is led out from the peripheral surface of the connector 32. In this embodiment, compared with the wire-arranging wire 31 being led out along the plugging direction between the connector 32 and the side interface of the mobile terminal 1, the wire-arranging wire 31 is led out from the peripheral surface of the connector 32, and the bending degree of the wire-arranging wire 31 is lower, so that stress concentration can be better prevented, the pluggable frequency of the wire-arranging wire 31 is improved, and the durability of the eyesight protection flat box device 100 is further improved.
In a preferred embodiment, the other end of the connector 32 is provided with a female head 52, the female head 52 being electrically connected to the male head 51, i.e. after the male head 51 is inserted into the mobile terminal, other devices can interact data with the mobile terminal through the female head 52. The female head 52 may be the same as the original interface of the mobile terminal, and in this embodiment, by setting the female head 52, when the vision protection device 2 provides power for multiplexing the original interface of the mobile terminal, other devices may perform data interaction with the mobile terminal through the female head 52, that is, the original interface function of the mobile terminal is not affected.
Referring to fig. 4, in this embodiment, the control method is used for controlling a circuit board, and compared with the control method performed on a mobile terminal, the control method performed on the control circuit board in this embodiment can not occupy too much resources of the mobile terminal, so that the performance of the mobile terminal is not obviously affected, and the user experience is improved. The control method of the vision protection device disclosed in the embodiment comprises the following steps:
in step S100, the current ambient light level collected by the photosensitive element 20 is obtained, where the photosensitive element 20 is located in a photosensitive hole slot in the middle area of the housing 10, and the hole slot may be a hole, a slot, or the like. Referring to fig. 3, the casing 10 is in a sheet shape as a whole and is used for attaching to the back of the mobile terminal (may be the back of the mobile terminal itself or the back of a protective cover of the mobile terminal); the middle area of the casing 10 is provided with a photosensitive hole groove, the photosensitive element 20 is positioned in the photosensitive hole groove, and the photosensitive surface faces the outer side of the casing 10, so that the light of the light emitting element 30 can be prevented from directly irradiating the photosensitive element 20, that is, the precision of detecting the ambient light by the photosensitive element 20 is improved. The present embodiment can reduce the complexity of the operation without the plurality of photosensitive elements 20 collecting the ambient light from different angles and calculating the ambient light based on the data of the different angles.
Step S200, determining whether the current ambient light brightness is less than a first threshold. In a specific embodiment, the first threshold and the second threshold form a threshold interval, the first threshold is smaller than the second threshold, the first threshold may be, for example, 5lx, the second threshold may be, for example, 7lx, that is, the threshold interval is, for example, 5-7lx, it should be noted that, in a specific implementation process, the first threshold and the second threshold may be determined empirically, or dynamically adjusted, for example, the threshold interval may also be 4-6lx, 5-8lx, 4-8lx, etc. In this embodiment, if the current ambient light level is less than the first threshold, step S300 and step S400 are performed.
In step S300, an ambient light control signal is output to the plurality of light emitting elements 30 to drive a plurality of light emitting elements 30 of the plurality of light emitting elements 30 to emit light and/or change brightness to provide ambient light of a preset brightness so that the current ambient light brightness matches a predetermined mobile terminal screen brightness. The predetermined mobile terminal screen brightness may be the lowest value of the mobile phone screen brightness, or may be other suitable brightness values, such as a value most comfortable for human eyes, such as a brightness value similar to that of an electronic book screen, etc. In the present embodiment, by driving the light emitting elements 30 to emit light, the mobile terminal can be provided with the ambient light of the preset brightness, wherein the plurality of light emitting elements 30 are respectively located at the periphery of the photosensitive element 20 and the light emitting surface faces the outside of the housing 10. In a preferred embodiment, the plurality of light emitting elements 30 are located on respective sides of the housing 10, such as on opposite sides or sides of a square housing, such as on a side of a circular housing near the outer edge. In the specific embodiment, part of the light emitting elements 30 may be driven to emit light, or all of the light emitting elements 30 may be driven to emit light; the light emitting elements to be driven to emit light may have the same or different light emitting luminance. In the implementation process, the preset brightness can be fixed or dynamically adjusted. For the preset brightness which is dynamically adjusted, the preset brightness can be set through a user, the preset brightness can also be obtained from the cloud, specifically, the preset brightness is obtained through an APP matched with the mobile terminal, and the preset brightness data are sent to the control circuit board. For the embodiment adopting dynamic adjustment of preset brightness, the preset brightness can be generated according to different environments, so that the preset brightness is prevented from being too bright or too dark. For example, in an open environment, the preset brightness may be brighter, and in a smaller environment, the preset brightness may be darker.
Step S400, outputting a screen brightness control signal to the mobile terminal, so that the mobile terminal adjusts the screen brightness to the predetermined screen brightness of the mobile terminal, for example, the mobile terminal adjusts the screen brightness to the brightness of the preset interval. In this embodiment, by adjusting the brightness of the screen downwards, the brightness of the screen can be matched with the brightness of the current environment, and the power consumption of the mobile terminal can be saved. In the specific implementation process, the preset interval is 30% -50%, preferably 40%, so that eyes of a user are more comfortable, and power consumption can be saved. It should be noted that, 30% -50% is based on the brightness of the screen itself, and when the brightness of the screen is represented by a numerical value, for example, 1-100, the preset interval may be, for example, 40-50, preferably 40.
In this embodiment, the execution sequence between the steps S300 and S400 is not limited.
In order to reduce the power consumption of the vision protection device, in an alternative embodiment, after step S300, it further comprises: step S500, the photosensitive element 20 is turned off. In this embodiment, by turning off the photosensitive element 20, on one hand, power consumption caused by the operation of the photosensitive element itself can be reduced, and on the other hand, power consumption caused by the operation of the photosensitive element 20 triggering the control circuit board can be avoided.
In order to dynamically adjust the brightness of the light emitting element so that the ambient light generated by the light emitting element exceeds the first threshold, please refer to fig. 5, which is a flowchart of a light emitting element driving control method disclosed in this embodiment, in an alternative embodiment, after step S500, the method further includes:
in step S610, the photosensitive element 20 is periodically activated. In this embodiment, the specific duration of the period is not limited.
In step S620, during the start of the photosensitive element 20, the current ambient light level collected by the photosensitive element 20 is obtained.
In step S630, it is determined whether the current ambient light brightness is less than a first threshold. Specifically, reference may be made to the description of the above embodiments, and the description thereof will not be repeated here. In this embodiment, if the current ambient light level is less than the first threshold value, step S640 is performed.
In step S640, an ambient light up-regulation control signal is output to the plurality of light emitting elements 30 to up-regulate the light emitting luminance of the plurality of light emitting elements 30. In the embodiment, the light emission luminance may be adjusted up by increasing the number of the light emitting elements 30 to be driven to emit light, or the luminance of the light emitting elements themselves may be adjusted up. And returns to step S620, step S630 and step S640 until the current ambient light level exceeds the first threshold.
In order to dynamically adjust the brightness of the light emitting element so that the ambient light generated by the light emitting element is less than the second threshold, please refer to fig. 6, which is a flowchart of another light emitting element driving control method disclosed in this embodiment, in an alternative embodiment, after step S500, the method further includes:
in step S710, the photosensitive element 20 is periodically activated. In the specific implementation process, step S610 and step S710 are the same step.
In step S720, during the start of the photosensitive element 20, the current ambient light level collected by the photosensitive element 20 is obtained. In the implementation process, step S620 and step S720 are the same step.
In step S730, it is determined whether the current ambient light brightness is greater than a second threshold. In this embodiment, if the current ambient light level is greater than the second threshold, step S740 is performed, where the second threshold is greater than the first threshold. It should be noted that, in the implementation process, step S630 and step S730 may be performed by the same action, that is, after the current ambient light level is obtained, the current ambient light level may be compared with the first threshold value and the second threshold value, respectively. Of course, the current ambient light level may be compared with the first threshold, and if the current ambient light level is greater than the first threshold, the current ambient light level may be compared with the second threshold; otherwise, the current ambient light level may be compared with the second threshold, and if the current ambient light level is smaller than the second threshold, the current ambient light level may be compared with the first threshold.
In step S740, an ambient light down-control signal is output to the plurality of light emitting elements 30 to down-control the light emitting brightness of the plurality of light emitting elements 30. In a specific embodiment, the light emission luminance may be adjusted down by reducing the number of light emitting elements 30 to be driven to emit light, or the luminance of the light emitting elements themselves may be adjusted down. And returns to step S720, step S730 and step S740 until the current ambient light level is less than the second threshold.
In an alternative embodiment, in order to match the screen brightness to the ambient brightness, in an alternative embodiment, when step S730 is performed, if the current ambient brightness is greater than the second threshold, step S750 is performed;
step S750, outputting a control signal for up-regulating the screen brightness to the mobile terminal to up-regulate the screen brightness of the mobile terminal. In the implementation process, after the control signal for up-regulating the screen brightness is output to the mobile terminal, the mobile terminal can up-regulate the screen brightness by itself. It should be noted that, in the present embodiment, the execution sequence between the step S740 and the step S750 is not limited.
To avoid that the vision protection device is always in an operational mode, the overall power consumption is reduced, and in an alternative embodiment, before step S100, the method further comprises: judging whether the mobile terminal is on; if the screen is on, step S100 is performed, otherwise, step S100 is not performed. Specifically, the starting step S100 may be triggered by a trigger signal output by the mobile terminal when the screen is on, or the judging operation may be started periodically to judge whether the screen is on.
In an alternative embodiment, before step S100, further includes: and receiving a first threshold and a second threshold sent by the mobile terminal, wherein the first threshold and the second threshold are input by a user in the mobile terminal, or the first threshold and the second threshold are sent to the mobile terminal by a cloud. Specifically, an APP can be matched with the mobile terminal, and a user inputs a first threshold value and a second threshold value on the APP; the first threshold and the second threshold issued by the cloud can also be received by the APP. In a specific embodiment, when the cloud end is adopted to issue the first threshold value and the second threshold value, the cloud end can obtain the first threshold value and the second threshold value according to statistics and analysis of big data, so that the first threshold value and the second threshold value are more adaptive, and visual health of a user when the user uses the mobile phone in a dim light environment is improved.
The embodiment also discloses a control device of the vision protection device, wherein the vision protection device is used for being attached to the back surface of the mobile terminal. The vision protection device comprises: the light emitting device comprises a housing 10, a photosensitive element 20, a plurality of light emitting elements 30 and a control circuit board.
In this embodiment, referring to fig. 7, a schematic structural diagram of a control device of a vision protection device disclosed in this embodiment is shown, where the control device is used for controlling a circuit board, and the control device includes: an ambient brightness acquisition module 100, a threshold judgment module 200, an ambient light control module 300, and a screen brightness control module 400, wherein:
the ambient brightness obtaining module 100 is configured to obtain a current ambient brightness collected by the photosensitive element 20, where the photosensitive element 20 is located in a photosensitive hole groove in a middle area of the housing 10, the photosensitive surface faces to an outer side of the housing 10, and the housing 10 is integrally in a sheet shape and is used for being attached to a back surface of the mobile terminal;
the threshold value judging module 200 is configured to judge whether the current ambient light brightness is less than a first threshold value; if less than the first threshold, the ambient light control module 300 and the screen brightness control module 400 are run;
the ambient light control module 300 is configured to output an ambient light control signal to the plurality of light emitting elements 30 to drive a plurality of light emitting elements 30 of the plurality of light emitting elements 30 to emit light and provide the mobile terminal with ambient light with a preset brightness, wherein the plurality of light emitting elements 30 are respectively located at the periphery of the photosensitive element 20 and the light emitting surface faces the outside of the housing 10;
the screen brightness control module 400 is configured to output a screen brightness control signal to the mobile terminal, so as to control the screen of the mobile terminal to be adjusted down to the brightness of the preset interval, so that the screen brightness matches with the current ambient light brightness.
In an alternative embodiment, the method further comprises: the screen-lighting judging module is used for judging whether the mobile terminal is on screen or not; if the screen is on, the ambient brightness acquisition module 100 is run, otherwise, the ambient brightness acquisition module 100 is not run.
In an alternative embodiment, the method further comprises: the threshold receiving module is used for receiving a first threshold and a second threshold sent by the mobile terminal, wherein the first threshold and the second threshold are input in the mobile terminal by a user, or the first threshold and the second threshold are issued to the mobile terminal by a cloud, and the second threshold is larger than the first threshold.
The embodiment also discloses a vision protection device, please refer to fig. 2 and 3, wherein the vision protection device is configured to be attached to a back central area of the mobile terminal and independent with respect to the mobile terminal before being attached to the back of the mobile terminal, and the vision protection device comprises: a housing 10, a photosensitive element 20, a plurality of light emitting elements 30, and a control circuit board; the control circuit board and the mobile terminal can be disconnected electrically; the control circuit board is configured to execute a program or a functional circuit to implement the method disclosed in the above embodiments.
According to the vision protection device for the mobile terminal, the control method and the control device, the vision protection device is used for being attached to the back face of the mobile terminal, the control method is used for a control circuit board in the vision protection device, current ambient light brightness collected by the photosensitive elements is obtained, when the current ambient light brightness is smaller than a first threshold value, the plurality of luminous elements are driven to provide ambient light with preset brightness, and the screen of the mobile terminal is controlled to be adjusted to the brightness of a preset interval. Therefore, the brightness of the environment can be better matched with the brightness of the screen; and on one hand, the light emitting elements are driven to generate the ambient light with preset brightness, and on the other hand, the screen brightness is adjusted downwards, so that the excessive ambient light is not required to be generated to match the screen brightness, the overall power consumption is reduced (the light emitting elements do not need to be excessively bright and the screen brightness is adjusted downwards), namely, the cruising ability of the mobile phone is not obviously damaged, and therefore, the visual health of a user when the mobile phone is used in a dark environment is improved on the premise of improving the user experience.
In addition, the vision protection device is used for being attached to the back of the mobile terminal, so that the vision protection device can be attached to the back of various mobile terminals, for example, a camera matrix on the back of the mobile terminal or an area of the back of the mobile terminal corresponding to the wireless charging coil is avoided, and user experience is improved; it should be noted that, compared with the mode of fixing by adopting the mobile phone shell, the embodiment of the invention adopts the attaching mode to fix the vision protection device and the mobile terminal, so that the vision protection device can be adapted to mobile terminals with different sizes, and different mobile phone shells do not need to be prepared for the mobile terminals with different sizes, thereby reducing the die sinking cost and facilitating the attachment of the vision protection device.
The whole shell is in a flake shape, so that the shell is not obviously protruded out of the back of the mobile terminal after being attached to the back of the mobile terminal, and can be conveniently inserted into flat storage spaces such as trousers bags and the like; and when the mobile terminal falls down and slides in a posture that the back face is downward, the force arm corresponding to the side impact force of the shell is small, so that the vision protection device is difficult to fall off from the mobile terminal, and the service life of the vision protection device is prolonged.
Since the photosensitive element is positioned in the photosensitive hole groove in the middle area of the shell, and the plurality of light-emitting elements are positioned at the side of the shell and the light-emitting surface faces the outer side of the shell, the light source of the light-emitting element can be reduced from directly irradiating the photosensitive element, that is, the interference of the light-emitting element on the detection of the photosensitive element can be avoided.
It should be noted that step numbers (letter or number numbers) are used in the present invention to refer to certain specific method steps for convenience and brevity only, and are not intended to limit the order of the method steps by letter or number in any way. It will be apparent to those skilled in the art that the sequence of the steps of the relevant method should be determined by the technique itself and should not be unduly limited by the presence of step numbers.
Those skilled in the art will appreciate that the above-described preferred embodiments can be freely combined and stacked without conflict.
It will be understood that the above-described embodiments are merely illustrative and not restrictive, and that all obvious or equivalent modifications and substitutions to the details given above may be made by those skilled in the art without departing from the underlying principles of the invention, are intended to be included within the scope of the appended claims.
Claims (10)
1. A control method of a vision protection device for attaching to a back surface of a mobile terminal, comprising: the control method comprises the steps of:
step S100, acquiring the current ambient light brightness acquired by the photosensitive element, wherein the photosensitive element is positioned in a photosensitive hole groove in the middle area of the shell, and the photosensitive surface faces to the outer side of the shell so as to acquire ambient light without a plurality of photosensitive elements, and the whole shell is sheet-shaped and is used for being attached to the back surface of the mobile terminal, wherein one surface of the control circuit board back shell and the end surface of the shell, which is adjacent to the control circuit board, are both used for being attached and fixed with the back surface of the mobile terminal;
step S200, judging whether the current ambient light brightness is smaller than a first threshold value; if the threshold value is smaller than the first threshold value, executing step S300;
and step S300, outputting ambient light control signals to the plurality of light emitting elements to drive a plurality of light emitting elements to emit light and/or change brightness so as to provide ambient light with preset brightness, so that the current ambient brightness is matched with the preset mobile terminal screen brightness, wherein the plurality of light emitting elements are respectively positioned at the periphery of the photosensitive element, the light emitting surface faces to the outer side of the shell, and particularly are positioned at the side of the shell.
2. The control method according to claim 1, characterized by further comprising, after said step S300:
step S400, outputting a screen brightness control signal to the mobile terminal so that the mobile terminal can adjust the screen brightness to the preset screen brightness of the mobile terminal.
3. The control method according to claim 1, characterized by further comprising, after said step S300:
step S500, closing the photosensitive element;
step S610, periodically activating the photosensitive element, and returning to step S100.
4. The control method according to claim 1, characterized by further comprising, after said step S300:
step S500, closing the photosensitive element;
step S710, periodically starting the photosensitive element;
step S720, during the starting of the photosensitive element, acquiring the current ambient light brightness acquired by the photosensitive element;
step S730, determining whether the current ambient light brightness is greater than a second threshold; if so, executing step S740, wherein the second threshold is greater than the first threshold;
step S740, outputting an ambient light down-regulation control signal to the plurality of light emitting elements to down-regulate the light emitting brightness of a plurality of light emitting elements and/or turn off at least one of the plurality of light emitting elements; and returning to step S720, step S730 and step S740 until the current ambient light level is less than the second threshold or all light emitting elements have been turned off.
5. The control method according to any one of claims 1 to 4, characterized in that, when step S730 is performed after the plurality of light emitting elements are all turned off, if the current ambient light level is greater than a second threshold value, step S750 is performed;
step S750, outputting a control signal for up-regulating the screen brightness to the mobile terminal, so as to up-regulate the screen brightness of the mobile terminal.
6. The control method according to claim 5, characterized by further comprising, before said step S100:
and receiving the first threshold and the second threshold sent by the mobile terminal, wherein the first threshold and the second threshold are input in the mobile terminal by a user, or the first threshold and the second threshold are sent to the mobile terminal by a cloud.
7. A control device of a vision protection device for attachment to a mobile terminal, comprising: the shell, photosensitive element and a plurality of light emitting component, its characterized in that, controlling means includes:
the environment brightness acquisition module is used for acquiring the current environment brightness acquired by the photosensitive element, wherein the photosensitive element is positioned in a photosensitive hole groove in the middle area of the shell, and the photosensitive surface faces to the outer side of the shell so as to acquire the environment brightness without a plurality of photosensitive elements;
the threshold judging module is used for judging whether the current ambient light brightness is smaller than a first threshold; if the first threshold is smaller than the first threshold, running the ambient light control module;
and the ambient light control module is used for outputting ambient light control signals to the plurality of light emitting elements so as to drive a plurality of light emitting elements to emit light and/or change brightness, so as to provide ambient light with preset brightness, and the current ambient light brightness is matched with the preset mobile terminal screen brightness, wherein the plurality of light emitting elements are respectively positioned at the periphery of the photosensitive element, the light emitting surface faces to the outer side of the shell, and the light emitting surface is particularly positioned at the side of the shell.
8. The control device according to claim 7, characterized by further comprising:
the screen brightness control module is used for outputting a screen brightness control signal to the mobile terminal so that the mobile terminal can adjust the screen brightness to the preset screen brightness of the mobile terminal;
the threshold judging module is further used for judging whether the current ambient light brightness is smaller than a first threshold; if the screen brightness is smaller than the first threshold value, the screen brightness control module is also operated.
9. The control device according to claim 7 or 8, characterized by further comprising:
the threshold receiving module is configured to receive the first threshold sent by the mobile terminal, where the first threshold is input by a user in the mobile terminal, or the first threshold is sent to the mobile terminal by a cloud.
10. A vision protection device for attachment to a back surface of a mobile terminal, comprising: the shell, the photosensitive element, a plurality of luminous elements and the control circuit board are characterized in that,
the control circuit board is configured to execute a program or a functional circuit to implement the control method according to any one of claims 1 to 6.
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