CN107301403A - Control method, electronic installation and computer-readable recording medium - Google Patents

Abstract

The invention discloses a control method, which is used in an electronic device. The electronic device includes an iris recognition module, and the iris recognition module includes an infrared light source. The control method includes: collecting an image; processing the image to identify the iris area; judging whether the iris distance between the iris and the iris recognition module is appropriate according to the area of the iris area; starting the infrared light source when the iris distance is appropriate; and when the iris distance is inappropriate Turn off or keep the infrared light source off. In addition, the invention also discloses an electronic device and a computer-readable storage medium. The control method, electronic device and computer-readable storage medium of the present invention start the infrared light source when the iris distance is appropriate, thereby avoiding the problems of power consumption and heating caused by starting the infrared light source when the iris distance is not appropriate.

Description

Control method, electronic device and computer readable storage medium

technical field

The present invention relates to an electronic device, in particular to a control method, an electronic device and a computer-readable storage medium.

Background technique

Iris recognition generally requires an infrared light source to assist the infrared camera to obtain a clear iris image. However, the infrared light source consumes a lot of energy and generates heat during work, so it is not suitable to be turned on for a long time.

Contents of the invention

Embodiments of the present invention provide a control method, an electronic device, and a computer-readable storage medium.

A control method according to an embodiment of the present invention is used for an electronic device, the electronic device includes an iris recognition module, the iris recognition module includes an infrared light source, and the control method includes the following steps:

capture images;

processing the image to identify iris regions;

Judging whether the iris distance between the iris and the iris recognition module is appropriate according to the area of the iris region;

activating the infrared light source when the iris distance is appropriate; and

The infrared light source is turned off or kept turned off when the iris distance is inappropriate.

An electronic device according to an embodiment of the present invention includes:

An iris recognition module, the iris recognition module includes an infrared light source; and

a processor for:

capture images;

processing the image to identify iris regions;

Judging whether the iris distance between the iris and the iris recognition module is appropriate according to the area of the iris region;

activating the infrared light source when the iris distance is appropriate; and

The infrared light source is turned off or kept turned off when the iris distance is inappropriate.

An electronic device according to an embodiment of the present invention includes:

Iris recognition module;

one or more processors;

storage; and

One or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the one or more processors, the programs are used to execute instructions of the control method.

An electronic device according to an embodiment of the present invention includes:

An iris recognition module, the iris recognition module includes an infrared light source; and

A processor, the processor is used to process the collected face image to identify the iris area, and when it is determined based on the iris area that the iris distance between the iris and the iris identification module meets the activation condition, start the infrared light source .

A computer-readable storage medium according to an embodiment of the present invention includes a computer program used in combination with an electronic device, and the computer program can be executed by a processor to complete the control method.

The control method, electronic device and computer-readable storage medium of the embodiments of the present invention activate the infrared light source when the iris distance is appropriate, thereby avoiding power consumption and heating problems caused by activating the infrared light source when the iris distance is not appropriate.

Additional aspects and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Description of drawings

The above and/or additional aspects and advantages of the present invention will become apparent and comprehensible from the description of the embodiments in conjunction with the following drawings, wherein:

Fig. 1 is a schematic flow chart of a control method according to an embodiment of the present invention;

2 is a schematic plan view of an electronic device according to an embodiment of the present invention;

Fig. 3 is another schematic flow chart of the control method in the embodiment of the present invention;

Fig. 4 is another schematic flow chart of the control method in the embodiment of the present invention;

5 is another schematic plan view of an electronic device according to an embodiment of the present invention;

Fig. 6 is another schematic flow chart of the control method in the embodiment of the present invention;

7 is another schematic plan view of the electronic device according to the embodiment of the present invention;

8 is a schematic diagram of the state of the infrared light source, the infrared camera, and the visible light camera according to the embodiment of the present invention;

9 is another schematic plan view of an electronic device according to an embodiment of the present invention;

Fig. 10 is another schematic flowchart of the control method according to the embodiment of the present invention;

Fig. 11 is another schematic flowchart of the control method according to the embodiment of the present invention;

Fig. 12 is another schematic flowchart of the control method according to the embodiment of the present invention;

13 is another schematic plan view of the electronic device according to the embodiment of the present invention;

Fig. 14 is a schematic diagram of the connection between the electronic device and the computer-readable storage medium according to the embodiment of the present invention.

Description of main component symbols:

Electronic device 100 , iris recognition module 20 , infrared light source 22 , infrared camera 24 , processor 30 , acceleration sensor 40 , visible light camera 50 , housing 60 , front surface 62 , memory 70 , computer readable storage medium 800 .

detailed description

Embodiments of the present invention are described in detail below, embodiments of which are illustrated in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

Please refer to FIG. 1 and FIG. 2 together, the control method of the embodiment of the present invention can be used in the electronic device 100 . The electronic device 100 includes an iris recognition module 20 , and the iris recognition module 20 includes an infrared light source 22 . The control method includes the following steps:

S31: collecting images;

S32: processing the image to identify the iris area;

S33: judging whether the iris distance is appropriate according to the area of the iris region;

S34: start the infrared light source 22 when the iris distance is appropriate; and

S35: Turn off or keep turning off the infrared light source 22 when the iris distance is inappropriate.

Please refer to FIG. 2 again, the electronic device 100 according to the embodiment of the present invention includes an iris recognition module 20 and a processor 30 . The iris recognition module 20 includes an infrared light source 22 . Processor 30 is used for:

capture images;

Process the image to identify the iris area;

Judging whether the iris distance is appropriate according to the area of the iris area;

activating the infrared light source 22 when the iris distance is appropriate; and

Turn off or keep turning off the infrared light source 22 when the iris distance is inappropriate.

That is to say, the control method of the embodiment of the present invention can be realized by the electronic device 100 of the embodiment of the present invention, wherein steps S31 , S32 , S33 , S34 and S35 can be realized by the processor 30 .

The electronic device 100 according to the embodiment of the present invention includes an iris recognition module 20 and a processor 30 . The iris recognition module 20 includes an infrared light source 22 . The processor 30 is used to process the collected face image to identify the iris area, and activate the infrared light source 22 when it is determined based on the iris area that the iris distance between the iris and the iris identification module 20 meets the activation condition. It can be understood that when the iris distance between the iris and the iris recognition module 20 meets the start condition, it may refer to when the iris distance is appropriate.

The control method and the electronic device 100 of the embodiment of the present invention activate the infrared light source 22 when the iris distance is appropriate, thereby avoiding power consumption and heating problems caused by activating the infrared light source 22 when the iris distance is not appropriate.

In some embodiments, the infrared light source 22 refers to a light source capable of generating infrared radiation (infrared light), and infrared radiation is a certain range of electromagnetic radiation with a wavelength greater than that of red light.

In some implementations, the iris distance may refer to the distance between the iris (or eye) corresponding to the user's iris area and the electronic device 100 (such as the iris recognition module 20 ). It can be understood that when there is only one iris area, that is, when the image only contains one iris area corresponding to one eye, the iris distance may refer to the distance between the iris area or the eye and the electronic device 100; when there are multiple iris areas , that is, when there are multiple iris regions corresponding to multiple eyes, the iris distance may refer to the average value of the distances between the multiple iris regions and the electronic device 100, or may refer to the minimum distance between the multiple iris regions and the electronic device 100. The value may also refer to the maximum value of the distances between the multiple iris regions and the electronic device 100 , which is not specifically limited here.

It can be understood that during the iris recognition process of the electronic device 100, when the iris distance is too large, the iris area of the image collected by the electronic device 100 is too small, which may result in the inability to extract the texture information of the iris and thus fail to perform iris recognition; If the value is too small, the texture information of the iris contained in the image may be incomplete, making it impossible to perform iris recognition. Therefore, the infrared light source 22 can be activated only when the iris distance is appropriate. Turn off or keep off the infrared light source 22 when the iris distance is inappropriate to avoid unnecessary power consumption and heat generation of the electronic device 100 . It should be noted that, since the infrared light source 22 may be in the activated state or the closed state when the iris distance is inappropriate, therefore, turning off or keeping the infrared light source 22 off may refer to turning off the infrared light source 22 when the infrared light source 22 is in the activated state. When the light source 22 is in the off state, keep the infrared light source 22 off.

In some embodiments, the value range of the iris distance can be 10-30 centimeters, that is to say, when the iris distance is between 10-30 centimeters, it means that the iris distance is appropriate; when the iris distance is less than or equal to 10 centimeters or When it is greater than or equal to 30 cm, it means that the iris distance is not appropriate.

In some embodiments, the electronic device 100 includes a mobile phone, a laptop computer, a tablet computer, a smart watch or smart glasses. In the embodiment of the present invention, the electronic device 100 is a mobile phone.

Referring to Figure 3, in some embodiments, the control method includes the following steps:

S36: judging whether an iris recognition request is received;

S37: enter step S31 when receiving the iris recognition request; and

S38: return to step S36 when no iris recognition request is received.

Referring again to FIG. 2, in some embodiments, the processor 30 is used to:

Determine whether an iris recognition request is received;

Entering the step of capturing an image upon receipt of an iris recognition request; and

When the iris recognition request is not received, return to the step of judging whether the iris recognition request is received.

That is to say, steps S36 , S37 and S38 can be implemented by the processor 30 .

In this way, the image can be captured only when the iris recognition request is received, thereby reducing the power consumption of the electronic device 100 .

Specifically, the processor 30 first judges whether the electronic device 100 has received an iris recognition request, and only collects images when the iris recognition request is received; The iris recognition request is received, thereby preventing the electronic device 100 from continuously collecting images, thereby reducing power consumption of the electronic device 100 and improving battery life of the electronic device 100 .

Please refer to FIG. 4 and FIG. 5 together. In some embodiments, the electronic device 100 includes an acceleration sensor 40 . Step S36 comprises the following steps:

S362: Process the output signal of the acceleration sensor 40 to determine whether the electronic device 100 operates in a predetermined manner; and

S364: Determine that the iris recognition request is received when the electronic device 100 operates in a predetermined manner.

Please refer to FIG. 5 again, in some embodiments, the electronic device 100 includes an acceleration sensor 40 . Processor 30 is used for:

processing the output signal of the acceleration sensor 40 to determine whether the electronic device 100 is operating in a predetermined manner; and

It is determined that the iris recognition request is received when the electronic device 100 operates in a predetermined manner.

That is to say, steps S362 and S364 can be implemented by the processor 30 .

In this way, the acceleration sensor 40 can be used to determine whether the electronic device 100 has received an iris recognition request, thereby simplifying the user's operation procedures and facilitating the user's use of the electronic device 100 .

Specifically, the acceleration sensor 40 can be used to detect the acceleration of the electronic device 100, and the processor 30 obtains the output signal of the acceleration sensor 40 (such as the acceleration detected by the acceleration sensor 40), so as to obtain the operation mode of the electronic device 100, and then judge the electronic device. Whether the 100 is operating in a predetermined manner, it is determined that an iris recognition request is received when the electronic device 100 is operating in a predetermined manner. In one embodiment, the predetermined way is to translate left and right twice back and forth within 2 seconds, and the acceleration sensor 40 detects the acceleration of the electronic device 100. When it is detected that the direction of the acceleration of the electronic device 100 is left, changes from left to When turning to the right, changing from right to left, or changing from left to right, it is determined that the electronic device 100 is operating in a predetermined manner, thereby determining that the electronic device 100 receives an iris recognition request. It should be noted that the processor 30 can determine the motion trajectory of the electronic device 100 by processing the acceleration of the electronic device 100 acquired by the acceleration sensor 40, and the predetermined manner may also refer to a predetermined motion trajectory, such as an arc, a circle, or a V shape. Wait. For example, when the user picks up the electronic device 100, the electronic device 100 moves from a position away from the user's face to a position close to the user's face. Then, the acceleration of the electronic device 100 acquired by the acceleration sensor 40 is used to determine whether the motion track of the electronic device 100 is arc-shaped to determine whether an iris recognition request is received.

Please refer to FIG. 6 and FIG. 7 together. In some embodiments, the electronic device 100 includes a visible light camera 50 . Step S31 comprises the following steps:

S312: Control the visible light camera 50 to collect images.

Please refer to FIG. 7 again, in some embodiments, the electronic device 100 includes a visible light camera 50 . The processor 30 is used to control the visible light camera 50 to collect images.

That is to say, step S312 may be implemented by the processor 30 .

In this way, the visible light camera 50 can be used to quickly collect images.

It can be understood that, in order to realize the diversity of functions of the electronic device 100 , the electronic device 100 may include a visible light camera 50 to obtain a color image by using the visible light camera 50 . Since the relevant technologies of the visible light camera 50 (such as control methods or image data processing methods, etc.) are relatively mature, the visible light camera 50 can quickly collect images.

Referring to FIG. 8 , in some embodiments, the iris recognition module 20 includes an infrared camera 24 , the illumination range of the infrared light source 22 , the field of view of the infrared camera 24 and the field of view of the visible light camera 50 at least partially overlap.

In this way, the infrared light source 22, the infrared camera 24 and the visible light camera 50 can work together.

Specifically, the infrared light source 22 and the infrared camera 24 need to cooperate to realize the collection of iris images. The infrared light source 22 and the infrared camera 24 can be arranged on the same side of the electronic device 100, and the infrared light source 22 and the infrared camera 24 are adjacently arranged. , so that the infrared light emitted by the infrared light source 22 can be collected by the infrared camera 24 after passing through the object surface. In addition, the illumination range of the infrared light source 22, the field of view of the infrared camera 24 and the field of view of the visible light camera 50 overlap at least partially to facilitate the collection of iris images by the electronic device 100. And according to the iris distance, the infrared light source 22 and the infrared camera 24 are controlled to start and close, and then the iris image is obtained when the iris distance is appropriate.

Referring to FIG. 9 , in some embodiments, the electronic device 100 includes a casing 60 , and the casing 60 includes a front surface 62 , and the iris recognition module 20 and the visible light camera 50 are disposed in the casing 60 and exposed from the front surface 62 .

In this way, the housing 60 of the electronic device 100 can be used to protect the iris recognition module 20 and the visible light camera 50 and facilitate the iris recognition module 20 and the visible light camera 50 to work.

Specifically, the iris recognition module 20 and the visible light camera 50 are arranged in the casing 60, and the dustproof and waterproof effect of the casing 60 can be used to protect the iris recognition module 20 and the visible light camera 50, thereby avoiding the iris recognition module 20 and the The visible light camera 50 is damaged by external factors and affects its normal operation. In addition, exposing the iris recognition module 20 and the visible light camera 50 from the front surface 62 can facilitate the work of the iris recognition module 20 and the visible light camera 50, and avoid affecting the collection of light by the infrared camera 24 and the visible light camera 50 of the iris recognition module 20, thereby ensuring The iris recognition module 20 and the visible light camera 50 can work efficiently.

Referring to FIG. 10, in some embodiments, step S31 includes the following steps:

S314: Control the infrared camera 24 to collect images.

Referring again to FIG. 9, in some embodiments, the processor 30 is used to:

Control the infrared camera 24 to collect images.

That is to say, step S314 can be implemented by the processor 30 .

In this way, the infrared camera 24 can be used to collect images.

It can be understood that, in the embodiment of the present invention, the image is used to identify the iris region to judge the iris distance according to the area of the iris region, so the quality of the image (such as color, resolution, etc.) is not high, so the infrared camera 24 can be used to collect image (grayscale image), thereby using the image collected by the infrared camera 24 to obtain the iris distance. In one embodiment, the electronic device 100 includes the infrared camera 24 instead of the visible light camera 22 , and using the infrared camera 24 to collect images can realize the control method of the embodiment of the present invention.

Referring to Fig. 11, in some embodiments, step S32 includes the following steps:

S322: Process the image to identify whether there is a human face;

S324: Recognize the iris area when there is a human face; and

S326: return to step S31 when there is no human face.

Referring again to FIG. 2, in some embodiments, the processor 30 is used to:

process images to identify the presence or absence of faces;

Identify the iris area when a human face is present; and

Return to the step of acquiring an image when no face is present.

That is to say, steps S322 , S324 and S326 can be implemented by the processor 30 .

In this way, the calculation amount of the processor 30 can be reduced, and the working efficiency of the electronic device 100 can be improved.

Specifically, identifying the iris area generally requires face recognition first, so the calculation amount for identifying the iris area is generally greater than that for face recognition. In addition, the face recognition technology is relatively mature compared to the technology for identifying the iris area. Therefore, the image can be quickly processed by face recognition technology to identify whether there is a human face in the image. When there is a human face, it means that the image may contain an iris area, and then identify the iris area and judge the iris distance by the area of the iris area; When there is a human face, it means that the image does not contain the iris area, and the image can be directly recaptured without performing iris area recognition on the image to reduce unnecessary calculations of the processor 30 , thereby improving the working efficiency of the electronic device 100 .

Referring to Fig. 12, in some embodiments, step S33 includes the following steps:

S332: Determine whether the area of the iris region is greater than a first predetermined value and smaller than a second predetermined value;

S334: Determine that the iris distance is appropriate when the area of the iris region is greater than the first predetermined value and smaller than the second predetermined value; and

S336: Determine that the iris distance is inappropriate when the area of the iris region is less than or equal to the first predetermined value or greater than or equal to the second predetermined value.

Referring again to FIG. 2, in some embodiments, the processor 30 is used to:

judging whether the area of the iris region is greater than a first predetermined value and smaller than a second predetermined value;

determining that the iris distance is appropriate when the area of the iris region is greater than a first predetermined value and less than a second predetermined value; and

It is determined that the iris distance is inappropriate when the area of the iris region is less than or equal to a first predetermined value or greater than or equal to a second predetermined value.

That is to say, steps S332 , S334 and S336 can be implemented by the processor 30 .

In this way, whether the iris distance is appropriate can be quickly and accurately judged according to the area of the iris region.

It can be understood that when the iris area is small, it means that the iris is far away from the electronic device 100, that is, the iris distance is relatively large; when the iris area is relatively large, it means that the iris is close to the electronic device 100, that is, the iris distance is small. Whether the iris distance is appropriate. Specifically, the first predetermined value is less than the second predetermined value, and when the area of the iris region is greater than the first predetermined value and less than the second predetermined value, it is determined that the iris distance is appropriate, and the texture information of the iris image obtained at this time is clear and complete; in the iris region When the area of the iris area is less than or equal to the first predetermined value, the iris distance is too small, and the iris image obtained at this time may be incomplete; Relatively vague.

In some implementations, the values of the first predetermined value and the second predetermined value can be obtained according to experiments and preset in the electronic device 100 before the electronic device 100 leaves the factory. Different electronic devices 100 may have different first and second predetermined values. The area of the iris area may refer to the area of the pixels occupied by the iris area. In one embodiment, when the area of the pixels occupied by the iris area is 100*100, that is, when the iris area is formed by 10,000 pixels, the corresponding iris The distance is a better value.

Referring to FIG. 13 , an electronic device 100 according to an embodiment of the present invention includes an iris recognition module 20 , one or more processors 30 , a memory 70 and one or more programs. One or more programs are stored in the memory 70 and configured to be executed by one or more processors 30 , the programs are used to execute the instructions of the control method in any of the above-mentioned embodiments of the present invention.

As an example, a program can be used to execute the instructions of the following control methods:

S31: collecting images;

S32: processing the image to identify the iris area;

S33: judging whether the iris distance is appropriate according to the area of the iris region;

S34: start the infrared light source 22 when the iris distance is appropriate; and

S35: Turn off or keep turning off the infrared light source 22 when the iris distance is inappropriate.

Please refer to FIG. 14 , the computer-readable storage medium 800 of the embodiment of the present invention includes a computer program used in combination with the electronic device 100 , and the computer program can be executed by the processor 30 to complete the control method of any of the above-mentioned embodiments of the present invention.

To give one example, the computer program can be executed by the processor 30 to complete the following control methods:

S31: collecting images;

S32: processing the image to identify the iris area;

S33: judging whether the iris distance is appropriate according to the area of the iris region;

S34: start the infrared light source 22 when the iris distance is appropriate; and

S35: Turn off or keep turning off the infrared light source 22 when the iris distance is inappropriate.

It should be noted that the computer-readable storage medium 800 may be a storage medium built in the electronic device 100 , or may be a storage medium that can be plugged into the electronic device 100 in a pluggable manner.

In the description of the embodiments of the present invention, the terms "first" and "second" are used for description purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of said features. In the description of the embodiments of the present invention, "plurality" means two or more, unless otherwise specifically defined.

In the description of the embodiments of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a It is a detachable connection, or an integral connection; it can be mechanically connected, it can be electrically connected, or it can communicate with each other; it can be directly connected or indirectly connected through an intermediary, and it can be internal communication between two components or two components interaction relationship. Those of ordinary skill in the art can understand the specific meanings of the above terms in the embodiments of the present invention according to specific situations.

In the description of this specification, reference to the terms "one embodiment", "some embodiments", "exemplary embodiments", "example", "specific examples" or "some examples" etc. Specific features, structures, materials, or features described in an embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the described specific features, structures, materials or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

Any process or method descriptions in flowcharts or otherwise described herein may be understood to represent modules, segments or portions of code comprising one or more executable instructions for implementing specific logical functions or steps of the process , and the scope of preferred embodiments of the invention includes alternative implementations in which functions may be performed out of the order shown or discussed, including substantially concurrently or in reverse order depending on the functions involved, which shall It is understood by those skilled in the art to which the embodiments of the present invention pertain.

The logic and/or steps represented in the flowcharts or otherwise described herein, for example, can be considered as a sequenced listing of executable instructions for implementing logical functions, can be embodied in any computer-readable medium, For use with instruction execution systems, devices, or devices (such as computer-based systems, systems including processing modules, or other systems that can fetch instructions from instruction execution systems, devices, or devices and execute instructions), or in conjunction with these instruction execution systems, devices or equipment used. For the purposes of this specification, a "computer-readable medium" may be any device that can contain, store, communicate, propagate or transmit a program for use in or in conjunction with an instruction execution system, device or device. More specific examples (non-exhaustive list) of computer-readable media include the following: electrical connection with one or more wires (electronic device), portable computer disk case (magnetic device), random access memory (RAM), Read Only Memory (ROM), Erasable and Editable Read Only Memory (EPROM or Flash Memory), Fiber Optic Devices, and Portable Compact Disc Read Only Memory (CDROM). In addition, the computer-readable medium may even be paper or other suitable medium on which the program can be printed, since the program can be read, for example, by optically scanning the paper or other medium, followed by editing, interpretation or other suitable processing if necessary. The program is processed electronically and stored in computer memory.

It should be understood that each part of the embodiments of the present invention may be implemented by hardware, software, firmware or a combination thereof. In the embodiments described above, various steps or methods may be implemented by software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, it can be implemented by any one or combination of the following techniques known in the art: Discrete logic circuits, ASICs with suitable combinational logic gates, programmable gate arrays (PGAs), field programmable gate arrays (FPGAs), etc.

Those of ordinary skill in the art can understand that all or part of the steps carried by the methods of the above embodiments can be completed by instructing related hardware through a program, and the program can be stored in a computer-readable storage medium. During execution, one or a combination of the steps of the method embodiments is included.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing module, each unit may exist separately physically, or two or more units may be integrated into one module. The above-mentioned integrated modules can be implemented in the form of hardware or in the form of software function modules. If the integrated modules are realized in the form of software function modules and sold or used as independent products, they can also be stored in a computer-readable storage medium.

The storage medium mentioned above may be a read-only memory, a magnetic disk or an optical disk, and the like.

Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, those skilled in the art can make the above-mentioned The embodiments are subject to changes, modifications, substitutions and variations.

Claims (23)

1. A control method for an electronic device, wherein the electronic device includes an iris recognition module, the iris recognition module includes an infrared light source, and the control method comprises the following steps: capture images; processing the image to identify iris regions; Judging whether the iris distance between the iris and the iris recognition module is appropriate according to the area of the iris region; activating the infrared light source when the iris distance is appropriate; and The infrared light source is turned off or kept turned off when the iris distance is inappropriate. 2. The control method according to claim 1, wherein the electronic device comprises a mobile phone, a laptop computer, a tablet computer, a smart watch or smart glasses. 3. control method as claimed in claim 1 is characterized in that, described control method comprises the following steps: Determine whether an iris recognition request is received; Entering the step of capturing images when receiving the iris recognition request; and When the iris recognition request is not received, return to the step of judging whether the iris recognition request is received. 4. control method as claimed in claim 3, is characterized in that, described electronic device comprises acceleration sensor, and the step of described judgment whether receives iris recognition request comprises the following steps: processing an output signal of the acceleration sensor to determine whether the electronic device is operating in a predetermined manner; and Receipt of the iris recognition request is determined when the electronic device operates in a predetermined manner. 5. The control method according to claim 1, wherein the electronic device comprises a visible light camera, and the step of collecting images comprises the following steps: and controlling the visible light camera to collect the image. 6. The control method according to claim 5, wherein the electronic device includes a housing, the housing includes a front surface, the iris recognition module and the visible light camera are arranged in the housing and exposed from the front surface. 7. control method as claimed in claim 5, is characterized in that, described iris recognition module comprises infrared camera, and the illumination range of described infrared light source, the field of view of described infrared camera and the field of view of described visible light camera are at least partially overlap. 8. The control method according to claim 1, wherein the iris recognition module includes an infrared camera, and the step of collecting images comprises the following steps: controlling the infrared camera to collect the image. 9. The control method of claim 1, wherein the step of processing the image to identify iris regions comprises the steps of: processing the image to identify the presence or absence of a human face; identifying said iris region when said face is present; and When the face does not exist, return to the step of capturing images. 10. The control method according to claim 1, wherein the step of judging whether the iris distance of the iris and the iris recognition module according to the area of the iris region is appropriate comprises the following steps: judging whether the area of the iris region is larger than a first predetermined value and smaller than a second predetermined value; determining that the iris distance is appropriate when the area of the iris region is greater than a first predetermined value and less than a second predetermined value; and It is determined that the iris distance is inappropriate when the area of the iris region is less than or equal to a first predetermined value or greater than or equal to a second predetermined value. 11. An electronic device, characterized in that it comprises: An iris recognition module, the iris recognition module includes an infrared light source; and a processor for: capture images; processing the image to identify iris regions; Judging whether the iris distance between the iris and the iris recognition module is appropriate according to the area of the iris region; activating the infrared light source when the iris distance is appropriate; and The infrared light source is turned off or kept turned off when the iris distance is inappropriate. 12. The electronic device according to claim 11, wherein the electronic device comprises a mobile phone, a laptop computer, a tablet computer, a smart watch or smart glasses. 13. The electronic device of claim 11, wherein the processor is configured to: Determine whether an iris recognition request is received; Entering the step of capturing images when receiving the iris recognition request; and When the iris recognition request is not received, return to the step of judging whether the iris recognition request is received. 14. The electronic device according to claim 13, wherein the electronic device comprises an acceleration sensor, and the processor is used for: processing an output signal of the acceleration sensor to determine whether the electronic device is operating in a predetermined manner; and Receipt of the iris recognition request is determined when the electronic device operates in a predetermined manner. 15. The electronic device according to claim 11, wherein the electronic device comprises a visible light camera, and the processor is used for: and controlling the visible light camera to collect the image. 16. The electronic device according to claim 15, wherein the electronic device comprises a casing, the casing includes a front surface, the iris recognition module and the visible light camera are arranged in the casing and exposed from the front surface. 17. The electronic device according to claim 15, wherein the iris recognition module includes an infrared camera, the illumination range of the infrared light source, the field of view of the infrared camera and the field of view of the visible light camera are at least partially overlap. 18. The electronic device according to claim 11, wherein the iris recognition module includes an infrared camera, and the processor is used for: controlling the infrared camera to collect the image. 19. The electronic device of claim 11, wherein the processor is configured to: processing the image to identify the presence or absence of a human face; identifying said iris region when said face is present; and When the face does not exist, return to the step of capturing images. 20. The electronic device of claim 11, wherein the processor is configured to: judging whether the area of the iris region is larger than a first predetermined value and smaller than a second predetermined value; determining that the iris distance is appropriate when the area of the iris region is greater than a first predetermined value and less than a second predetermined value; and It is determined that the iris distance is inappropriate when the area of the iris region is less than or equal to a first predetermined value or greater than or equal to a second predetermined value. 21. An electronic device, characterized in that it comprises: Iris recognition module; one or more processors; storage; and One or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the one or more processors, the programs are used to perform any one of claims 1-10 instructions for the control method. 22. A computer-readable storage medium, characterized by comprising a computer program used in combination with an electronic device, and the computer program can be executed by a processor to implement the control method according to any one of claims 1-10. 23. An electronic device, comprising: An iris recognition module, the iris recognition module includes an infrared light source; and A processor, the processor is used to process the collected face image to identify the iris area, and when it is determined based on the iris area that the iris distance between the iris and the iris identification module meets the activation condition, start the infrared light source .