CN108279408A - Proximity sensor calibration method and device, mobile terminal and computer readable medium - Google Patents

Abstract

The embodiment of the application provides a method and a device for calibrating a proximity sensor, a mobile terminal and a computer readable medium, and belongs to the technical field of mobile communication. The method comprises the following steps: when detecting that the proximity sensor is started, acquiring a proximity value acquired by the proximity sensor according to preset calibration parameters; judging whether the approach value is larger than a preset standard value and smaller than a preset maximum threshold value; and if so, updating the preset calibration parameters according to the difference value between the approach value and the preset standard value. And updating the preset calibration parameter according to the difference value between the approach value and the preset standard value, so that the approach value acquired by the approach sensor according to the updated preset calibration parameter approaches the preset standard value more, and the measurement accuracy of the approach sensor is improved.

Description

Proximity sensor calibration method, device, mobile terminal and computer readable medium

technical field

The present application relates to the technical field of mobile communication, and more specifically, relates to a proximity sensor calibration method, device, mobile terminal and computer-readable medium.

Background technique

At present, the proximity sensors used in mobile terminals mostly use the principle of infrared emission and reception. If the opening position of the proximity sensor is covered with a protective film or smeared with oil, the proximity value collected by the proximity sensor will be too large, causing the mobile terminal to fail during use. Functional disorder occurs in the system, which reduces user experience.

Contents of the invention

The present application proposes a proximity sensor calibration method, device, mobile terminal and computer-readable medium to improve the above-mentioned defects.

In the first aspect, an embodiment of the present application provides a method for calibrating a proximity sensor, including: acquiring a proximity value collected by the proximity sensor according to preset calibration parameters when the proximity sensor is detected to be activated; judging whether the proximity value is greater than the preset Set a standard value and be less than a preset maximum threshold; if yes, update the preset calibration parameter according to the difference between the close value and the preset standard value.

In a second aspect, the embodiment of the present application further provides a proximity sensor calibration device, including: an acquisition unit, a judgment unit, and an update unit. The obtaining unit is configured to obtain a proximity value collected by the proximity sensor according to preset calibration parameters when the proximity sensor is detected to be activated. A judging unit, configured to judge whether the proximity value is greater than a preset standard value and smaller than a preset maximum threshold. An updating unit, configured to update the preset calibration parameter according to the difference between the close value and the preset standard value if yes.

In a third aspect, the embodiment of the present application further provides a mobile terminal, including a memory and a processor, and the memory is coupled to the processor. The memory stores instructions, and when the instructions are executed by the processor, the processor performs the following operations: when the proximity sensor is detected to be activated, obtain the proximity value collected by the proximity sensor according to preset calibration parameters; Judging whether the proximity value is greater than a preset standard value and smaller than a preset maximum threshold; if yes, updating the preset calibration parameter according to a difference between the proximity value and the preset standard value.

In a fourth aspect, the embodiment of the present application further provides a computer-readable medium having a program code executable by a processor, and the program code causes the processor to execute the above method.

The embodiment of the present application provides a proximity sensor calibration method, device, mobile terminal and computer-readable medium. When the proximity sensor is detected to be activated, the proximity sensor will collect the proximity value with the surrounding target objects according to the preset calibration parameters. Then the proximity value collected by the proximity sensor is obtained. Judging whether the proximity value is greater than the preset standard value and less than the preset maximum threshold, if greater than or equal to the preset maximum threshold, it means that the proximity sensor is in normal use, for example, the user calls through a mobile terminal, if the proximity value is less than or equal to The preset standard value means that the opening position of the proximity sensor is not blocked by obstacles such as screen film or oil stains, and if the proximity value is greater than the preset standard value and less than the preset maximum threshold, it means that the current proximity value does not meet the standard and may It is caused by the fact that the opening position of the proximity sensor is not blocked by obstacles such as screen film or oil stains. Therefore, the preset calibration parameters are updated according to the difference between the proximity value and the preset standard value, so that Then the proximity sensor collects the proximity value according to the updated preset calibration parameter, and updates the preset calibration parameter according to the difference between the proximity value and the preset standard value, so that the proximity sensor collects the value according to the updated preset calibration parameter. The proximity value of the mobile terminal is closer to the preset standard value, which better avoids the malfunction of the mobile terminal during use due to the inaccurate proximity value collected by the proximity sensor, thereby improving the user experience.

Other features and advantages of the embodiments of the present application will be set forth in the following description, and partly become obvious from the description, or can be understood by implementing the embodiments of the present application. The objectives and other advantages of the embodiments of the application will be realized and attained by the structure particularly pointed out in the written description, claims hereof as well as the appended drawings.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application. For those skilled in the art, other drawings can also be obtained based on these drawings without any creative effort.

FIG. 1 shows a schematic structural diagram of a mobile terminal provided by an embodiment of the present application;

Fig. 2 shows the method flowchart of the proximity sensor calibration method provided by an embodiment of the present application;

FIG. 3 shows a method flowchart of a proximity sensor calibration method provided by another embodiment of the present application;

FIG. 4 shows a method flowchart of a proximity sensor calibration method provided in another embodiment of the present application;

FIG. 5 shows a block diagram of a proximity sensor calibration device provided by an embodiment of the present application;

FIG. 6 shows a block diagram of a proximity sensor calibration device provided by another embodiment of the present application;

FIG. 7 shows a module block diagram of a mobile terminal provided in an embodiment of the present application for executing the method provided in the embodiment of the present application.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all of them. The components of the embodiments of the application generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations. Accordingly, the following detailed description of the embodiments of the application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative efforts belong to the scope of protection of the present application.

It should be noted that like numerals and letters denote similar items in the following figures, therefore, once an item is defined in one figure, it does not require further definition and explanation in subsequent figures. Meanwhile, in the description of the present application, the terms "first", "second" and the like are only used to distinguish descriptions, and cannot be understood as indicating or implying relative importance.

Please refer to FIG. 1 , which shows a mobile terminal 100 provided by an embodiment of the present application. The mobile terminal 100 is provided with a proximity sensor 114J. Specifically, the proximity sensor 114J is located on the front of the mobile terminal 100, for example, on the Near the earpiece on the front.

The proximity sensor 114J is used to detect the distance between surrounding objects and the mobile terminal 100 . Specifically, the proximity sensor 114J includes an infrared emitting tube and an infrared receiving tube, and an opening is provided on the mobile terminal. The proximity sensor 114J is located in the opening, and the infrared emitting tube is used to emit infrared rays. When an object approaches, the infrared emitting tube The emitted light will be reflected back by the object and received by the infrared receiving tube, and the distance to the object can be obtained according to the intensity of the light received by the infrared receiving tube. Specifically, the proximity value output by the proximity sensor 114J may be the distance to the target object, or the light intensity value of the light emitted by the infrared emitting tube received by the infrared receiving tube or converted according to the acquired light intensity value Here, the proximity value is not limited, as long as it can demonstrate the distance between the proximity sensor and the target object.

When the mobile terminal leaves the factory, the proximity sensor is generally calibrated, that is, an initial calibration value is set. When the proximity sensor collects the initial sampling value, it will calibrate the initial sampling value according to the initial calibration value to obtain The actual measured proximity value, eg, the actual measured proximity value is equal to the difference between the initial sampled value and the initial calibration value.

However, when using a mobile terminal, the user will stick a film on the screen of the mobile terminal to cover the opening of the proximity sensor, or accidentally cover the opening of the proximity sensor with pollutants such as oil, which affects the proximity sensor. The measurement accuracy of the proximity value, for example, makes the proximity value measured by the proximity sensor too large, while the corresponding distance is smaller than the actual distance.

Therefore, in order to solve the above defects, please refer to FIG. 2. The embodiment of the present application provides a method for calibrating a proximity sensor, which is applied to a mobile terminal to solve the problem of inaccurate measurement accuracy of the proximity sensor. Specifically, please refer to FIG. 2 , the method includes: S201 to S203.

S201: Acquire a proximity value collected by the proximity sensor according to preset calibration parameters when it is detected that the proximity sensor is activated.

Some functions in the mobile terminal need to use the proximity value collected by the proximity sensor. For example, the call application of the mobile terminal. The calling application will obtain the proximity value collected by the proximity sensor, and when it is judged according to the proximity value that the earpiece of the mobile terminal is located at the user's ear, the screen of the mobile terminal will be turned off. When the proximity sensor is activated, the mobile terminal obtains the proximity value collected by the proximity sensor according to preset calibration parameters.

Specifically, the method for the proximity sensor to collect the proximity value is that the infrared receiving tube of the proximity sensor receives the light emitted by the infrared transmitting tube and reflected by the target object, thereby obtaining the initial sampling value, and then obtaining the preset calibration parameters to obtain the initial sampling value The difference between the preset calibration parameters and the difference is used as the proximity value collected by the proximity sensor. Wherein, the preset calibration parameter may be pre-stored in a register of the mobile terminal, and the preset calibration parameter may be a value, for example, may be an initial calibration value set when the mobile terminal leaves the factory.

In addition, in order to improve the calibration accuracy, the manner of obtaining the proximity value collected by the proximity sensor according to the preset calibration parameters may be: obtaining a plurality of initial proximity values collected by the proximity sensor according to the preset calibration parameters; obtaining the plurality of initial proximity values The average value of the proximity value; the average value is used as the proximity value collected by the proximity sensor.

Specifically, when the proximity sensor is detected to be activated, the proximity sensor collects a plurality of initial sampling values, and subtracts a preset calibration parameter from each initial sampling value to obtain an initial calibration value corresponding to each initial sampling value. After calculation, the average value of multiple initial calibration values is obtained, and the average value is used as the proximity value collected by the proximity sensor in the embodiment of the present application. Specifically, five initial proximity values may be collected, and an average value of the five initial proximity values may be used as the proximity value collected by the proximity sensor.

S202: Determine whether the proximity value is greater than a preset standard value and smaller than a preset maximum threshold.

Wherein, the preset standard value is an expected value. In theory, if the proximity value collected by the proximity sensor is equal to the preset standard value, it means that the measurement accuracy of the proximity sensor is very accurate. When the proximity sensor is blocked by the film of the mobile terminal or other pollutants such as oil, the proximity value measured by the proximity sensor will be too large, that is, greater than the preset standard value. Therefore, the proximity sensor needs to be calibrated so that its The measured close value can be as close as possible to the preset standard value. In this way, the proximity values of the proximity sensors of different mobile terminals can be calibrated to the same value, which can ensure that the off-screen distances of different mobile terminals are the same, and reduce differences among different mobile terminals.

In addition, the preset standard value is generally small, for example, if the total range of the proximity sensor is 1023, the preset standard value can be 200, which is one-fifth of the total range of the proximity sensor, and the initial value is greater than 200 All of them are calibrated to 200, so that the proximity value of the object in the process of approaching the proximity sensor can have a large dynamic adjustment range. If the proximity value collected by the proximity sensor is less than or equal to the preset standard value, it can be determined that there is no film or oil covering, and the proximity sensor does not need to be calibrated.

Wherein, the preset maximum threshold is greater than the preset standard value, which is a set larger value. If the proximity value collected by the proximity sensor is greater than the preset maximum threshold, it means that the mobile terminal is in the proximity state, and the proximity sensor does not need to be calibrated at this time. Wherein, the proximity state is that the proximity sensor of the mobile terminal is blocked by the user. Although pollutants such as film or oil stains can make the proximity value collected by the proximity sensor too large, it will not be larger than the proximity value of the mobile terminal when it is in the proximity state. Therefore, when the proximity value is greater than the preset standard value and less than the preset value When the maximum threshold is set, the proximity sensor is calibrated, that is, step S203 is executed, and when the proximity value is less than or equal to the preset standard value, or when the proximity value is greater than or equal to the preset maximum threshold, the proximity sensor is not calibrated.

S203: Update the preset calibration parameters according to the difference between the proximity value and the preset standard value.

Specifically, the difference between the approach value and the preset standard value is obtained, which is recorded as a calibration difference. Then update the preset calibration parameter to the sum of the preset calibration parameter and the calibration difference. Suppose, the initial sampling value collected by the proximity sensor is x, the preset calibration value is offset1, and the preset standard value is pc, then the proximity value collected by the proximity sensor is ps=x-offset1, then x=ps+offset1. Then the calibration difference=ps-pc, then the updated preset calibration parameter offset1'=offset1+ps-pc, then recalculate the approach value according to the updated preset calibration parameter:

ps=x-offset1'=ps+offset1-offset1-ps+pc, that is, ps=pc, then the approximate value after the calibration value is equal to the preset standard value, that is, the calibration requirement is met.

As an implementation, the updated preset calibration parameters are used to collect the proximity value of the proximity sensor this time, that is to say, the updated preset calibration parameters are used during the time period between the proximity sensor is turned on and off this time. The parameter calibrates the proximity value of the proximity sensor. At the next startup, the proximity sensor collects the proximity value again according to the preset calibration parameters before updating, that is, offset1' is used this time, and offset1 is used next time. Then the preset calibration parameter is the initial calibration parameter set by the mobile terminal when it leaves the factory. In some embodiments, the preset calibration parameter is 0, and the value is updated according to the difference between the proximity value and the preset standard value. The way of the preset calibration parameter may be: the difference between the close value and the preset standard value is used as the preset calibration parameter, that is, the preset calibration parameter is updated to be between the close value and the preset standard value difference.

As another implementation manner, the updated preset calibration parameters are stored in the register of the mobile terminal, and when the proximity sensor is started next time, the updated preset calibration parameters can continue to be used, that is, use offset'. If the value of offset' is too large, when the proximity sensor is activated next time, the proximity value collected by the proximity sensor according to the offset' is too small, or even less than 0, which will cause dysfunction of the application that needs to use the proximity value.

Therefore, in order to solve this defect, another embodiment of the present application provides a method for calibrating a proximity sensor. Please refer to FIG. 3 , the embodiment of the present application provides a method for calibrating a proximity sensor, which is applied to a mobile terminal to solve the problem of inaccurate measurement accuracy of the proximity sensor. Specifically, please refer to FIG. 3 , the method includes: S301 to S309.

S301: Acquire a proximity value collected by the proximity sensor according to preset calibration parameters when it is detected that the proximity sensor is activated.

S302: Determine whether the proximity value is greater than a preset minimum threshold.

Wherein, the preset minimum threshold is a value set by the user according to the normal use requirements of the proximity sensor. As an implementation, the preset minimum threshold is 0. When the proximity sensor uses the difference between the collected initial sampling value and the preset calibration parameter as the collected proximity value, if the preset calibration parameter is too large, the initial sampling The difference between the value and the preset calibration parameter is a negative number, that is, less than 0. When the application program of the mobile terminal reads that the proximity value of the proximity sensor is a negative number, it will not be recognized. And even if all negative numbers are changed to 0, when reading the proximity value collected by the proximity sensor, no matter what the difference between the initial sampling value and the preset calibration parameter is, as long as it is a negative number, it will read 0. Therefore, the accuracy of the read proximity value is insufficient. Then, step S303 is executed when the proximity value is greater than the preset minimum threshold, and step S305 is executed when the proximity value is less than or equal to the preset minimum threshold.

S303: Determine whether the proximity value is greater than a preset standard value and smaller than a preset maximum threshold.

Wherein, the preset standard value is greater than the preset minimum threshold.

S304: Update the preset calibration parameter according to the difference between the proximity value and the preset standard value.

S305: Use the difference between the preset standard parameter and the preset value as a parameter difference.

Since the proximity value collected by the proximity sensor is less than or equal to 0 because the preset standard parameter is too large, the preset standard parameter is gradually reduced until the proximity value is greater than the preset minimum threshold. Specifically, the difference between the preset standard parameter and the preset value is obtained. For example, if the preset standard parameter is offset and the preset value is c, then the difference between the preset standard parameter and the preset value is offset- c, the parameter difference is offset-c.

S306: Obtain a proximity value collected by the proximity sensor according to the parameter difference as the updated proximity value.

Since the proximity value ps=x-offset, wherein, x is close to the initial sampling value collected by the sensor, the preset standard parameter is reduced by a preset value, and accordingly, the proximity value should also be increased by a preset value, but, in some embodiments , since the proximity sensor automatically updates all proximity values less than 0 to 0, therefore, when the proximity value is less than or equal to 0, the initial sampling value and the actual size of the proximity value cannot be known, if the proximity value is updated directly Errors may occur as the sum of the approximate value and the preset value. Then modify the value of the preset standard parameter to the parameter difference, and instruct the proximity sensor to collect the proximity value according to the preset standard parameter modified as the parameter difference, and name the collected proximity value as the updated proximity value.

S307: Determine whether the updated proximity value is greater than a preset minimum threshold.

If the updated proximity value is greater than the preset minimum threshold, perform step S308, and if the updated proximity value is less than or equal to the preset minimum threshold, perform step S309.

S308: Use the parameter difference as the preset standard parameter.

If the updated proximity value is greater than the preset minimum threshold, it means that when the preset standard parameter is equal to the parameter difference, the collected proximity value can be greater than the preset minimum threshold, and the parameter difference is used as the preset standard The parameter, that is, the preset standard parameter at this time is the parameter difference. For example, if the parameter difference is offset-c, then the preset standard parameter at this time is equal to offset-c. Wherein, c is a numerical value of a minimum unit, for example, if all numerical values such as preset standard parameters and close values are integers, then C is 1.

S309: Update the parameter difference to a difference between the parameter difference and the preset value.

If the updated proximity value is still a negative number or 0, it means that the preset standard parameter is still too large, and the preset standard parameter needs to be reduced again. Then subtract the preset value from the parameter difference again. That is, the parameter difference is updated to the difference between the parameter difference and the preset value, and returns to step S306, that is, the parameter difference obtained at this time is used again to obtain the approximate value until after the update If the approach value is greater than the preset minimum threshold, the parameter difference at this time is used as the preset standard parameter.

For example, if the preset value is 1, the preset minimum threshold is 0, and the preset standard parameter is offset, then the parameter difference is offset-1, and offset-1 is used to obtain the proximity value, that is, the updated proximity value is obtained . Then the updated proximity value is equal to 0, then update the parameter difference to offset-2, use offset-2 to obtain the proximity value, and judge whether the obtained proximity value is greater than 0, if it is still equal to 0, then set the parameter difference The value is updated to offset-3, and the cycle continues in this way until the collected close value is greater than 0, and the parameter difference at this time is used as the preset standard parameter.

It should be noted that, for the part described in detail in the above steps, reference may be made to the foregoing embodiments, and details are not repeated here.

In addition, when the collected proximity value is equal to the preset standard value, the precision of the proximity value collected by the proximity sensor is the highest. Therefore, further, the way of judging whether the updated proximity value is greater than the preset minimum threshold is to judge whether the updated Whether the proximity value is equal to the preset standard value, specifically, please refer to FIG. 4, the embodiment of the present application provides a proximity sensor calibration method, which is applied to a mobile terminal to solve the problem of inaccurate measurement accuracy of the proximity sensor , specifically, referring to FIG. 4 , the method includes: S401 to S411.

S401: Acquire a proximity value collected by the proximity sensor according to preset calibration parameters when it is detected that the proximity sensor is activated.

S402: Determine whether the proximity value is greater than a preset minimum threshold.

S403: Determine whether the proximity value is greater than a preset standard value and smaller than a preset maximum threshold.

S404: Update the preset calibration parameter according to the difference between the proximity value and the preset standard value.

S405: Use the difference between the preset standard parameter and the preset value as a parameter difference.

S406: Determine whether the parameter difference is greater than zero.

In the embodiment of the present application, the preset minimum threshold is zero. Then, the proximity value collected by the proximity sensor is smaller than the preset minimum threshold, which is caused by the preset standard parameter being too large. The proximity value can be increased by reducing the preset standard parameter, but it may cause the preset standard parameter to be less than zero, resulting in failure to read the proximity value smoothly or dysfunction of applications that depend on the proximity value. Therefore, it is necessary to ensure that the preset standard parameter cannot be less than zero. If the parameter difference is greater than zero, execute S407, and if the parameter difference is less than or equal to zero, execute S411.

S407: Obtain a proximity value collected by the proximity sensor according to the parameter difference as the updated proximity value.

S408: Determine whether the updated proximity value is equal to the preset standard value.

S409: Update the parameter difference to a difference between the parameter difference and the preset value.

S410: Use the parameter difference as the preset standard parameter.

S411: Modify the preset standard parameter to zero.

The proximity value is equal to the initial sampling value minus the preset standard parameter. If the initial sampling value itself is less than the preset standard value, then if the proximity value is to be equal to the preset standard value, the preset standard parameter needs to be a negative number, which will cause the function Disturbance occurs or the proximity sensor cannot be used normally. Therefore, the judgment of whether the proximity value is equal to the preset standard value is combined with whether the parameter difference is greater than zero. When the proximity value is equal to the preset standard value or the parameter difference Calibration is stopped when a value less than or equal to 0 occurs.

Assume that the initial sampling value is x=4, the preset calibration parameter offset=8, the preset standard value pc=2, and the preset value is 1. Then the ps obtained for the first time=4-8=-4, judge that -4 is not equal to 2, then offset-1 is 7, judge that 7 is greater than 0, then obtain the updated ps=4-7=-3, judge - 3 is not equal to 2, then subtract 1 after offset-1 to become 6, determine that 6 is greater than 0, update ps=4-6=-2 again, determine that -2 is not equal to 2, and so on, at offset-6 After = 2, the updated ps = 4-2 = 2 is obtained, then the updated approach value is equal to the preset standard value, that is, ps = pc, and the preset calibration parameter at this time is 2.

Assume that the initial sampling value is x=4, the preset calibration parameter offset=8, the preset standard value pc=6, and the preset value is 1. Then the ps obtained for the first time=4-8=-4, judge that -4 is not equal to 6, then offset-1 is 7, judge that 7 is greater than 0, then obtain the updated ps=4-7=-3, judge - 3 is not equal to 6, then subtract 1 after offset-1 to become 6, determine that 6 is greater than 0, update ps=4-6=-2 again, determine that -2 is not equal to 6, and so on, at offset-8 =0, the updated ps=4-0=4, it is judged that 4 is not equal to 6, but at this time the parameter difference=offset-8 is already equal to 0, although the approach value is not equal to the preset standard value at this time, However, if the parameter difference is already equal to 0, then directly modify the preset calibration parameters to zero. Moreover, although the close value is not equal to the preset standard value at this time, the close value has already approached the preset standard value as much as possible.

It should be noted that, for the part described in detail in the above steps, reference may be made to the foregoing embodiments, and details are not repeated here.

Please refer to FIG. 5. The embodiment of the present application provides a proximity sensor calibration device, which is applied to a mobile terminal to solve the problem of inaccurate measurement accuracy of the proximity sensor. Specifically, please refer to FIG. 5. The device includes: an acquisition unit 501 , a judging unit 502 and an updating unit 503 .

The obtaining unit 501 is configured to obtain a proximity value collected by the proximity sensor according to preset calibration parameters when it is detected that the proximity sensor is activated.

A judging unit 502, configured to judge whether the proximity value is greater than a preset standard value and smaller than a preset maximum threshold.

The updating unit 503 is configured to update the preset calibration parameter according to the difference between the close value and the preset standard value if yes.

Those skilled in the art can clearly understand that for the convenience and brevity of description, the specific working process of the above-described devices and units can refer to the corresponding process in the foregoing method embodiments, and details are not repeated here.

Please refer to FIG. 6. The embodiment of the present application provides a proximity sensor calibration device, which is applied to a mobile terminal to solve the problem of inaccurate measurement accuracy of the proximity sensor. Specifically, please refer to FIG. 6. The device includes: an acquisition unit 601 , judging unit 602 , updating unit 603 and zero-crossing adjusting unit 604 .

The obtaining unit 601 is configured to obtain a proximity value collected by the proximity sensor according to preset calibration parameters when it is detected that the proximity sensor is activated.

A judging unit 602, configured to judge whether the proximity value is greater than a preset standard value and smaller than a preset maximum threshold. Specifically, for judging whether the proximity value is greater than a preset minimum threshold; if greater than a preset minimum threshold, judging whether the proximity value is greater than a preset standard value and smaller than a preset maximum threshold, wherein the preset standard value greater than the preset minimum threshold.

The updating unit 603 is configured to update the preset calibration parameter according to the difference between the close value and the preset standard value if yes.

A zero-crossing adjustment unit 604, configured to use the difference between the preset standard parameter and the preset value as a parameter difference if the proximity value is less than or equal to a preset minimum threshold; obtain the proximity sensor according to the The proximity value collected by the parameter difference is used as the updated proximity value; judging whether the updated proximity value is greater than a preset minimum threshold; if so, using the parameter difference as the preset standard parameter; if not , updating the parameter difference to the difference between the parameter difference and the preset value, and performing acquiring the proximity value collected by the proximity sensor according to the parameter difference again until the updated The proximity value is greater than a preset minimum threshold.

Those skilled in the art can clearly understand that for the convenience and brevity of description, the specific working process of the above-described devices and units can refer to the corresponding process in the foregoing method embodiments, and details are not repeated here.

Please refer to FIG. 1 again. Based on the above-mentioned method and device, the embodiment of the present application also provides a mobile terminal 100, which includes an electronic body part 10, and the electronic body part 10 includes a housing 12 and is arranged on the housing 12 The main display screen 120 on. The housing 12 can be made of metal, such as steel or aluminum alloy. In this embodiment, the main display screen 120 generally includes a display panel 111 , and may also include a circuit for responding to a touch operation on the display panel 111 . The display panel 111 may be a liquid crystal display panel (Liquid Crystal Display, LCD), and in some embodiments, the display panel 111 is also a touch screen 109 .

Please also refer to FIG. 7. In an actual application scenario, the mobile terminal 100 can be used as a smart phone terminal. In this case, the electronic main body 10 usually includes one or more (only shown in the figure) a) A processor 102 , a memory 104 , an RF (Radio Frequency, radio frequency) module 106 , an audio circuit 110 , a sensor 114 , an input module 118 , and a power module 122 . Those skilled in the art can understand that the structure shown in FIG. 7 is only a schematic diagram, which does not limit the structure of the electronic body part 10 . For example, the electronic body part 10 may also include more or fewer components than shown in FIG. 7 , or have a different configuration than that shown in FIG. 1 .

Those skilled in the art can understand that, relative to the processor 102 , all other components belong to peripherals, and the processor 102 is coupled to these peripherals through a plurality of peripheral interfaces 124 . The peripheral interface 124 can be implemented based on the following standards: Universal Asynchronous Receiver/Transmitter (UART), General Purpose Input Output (GPIO), Serial Peripheral Interface (Serial Peripheral Interface) , SPI), inter-integrated circuit (Inter-Integrated Circuit, I2C), but not limited to the above standards. In some examples, the peripheral interface 124 may only include a bus; in other examples, the peripheral interface 124 may also include other components, such as one or more controllers, for example for connecting the display panel 111 display controller or memory controller for connecting memory. In addition, these controllers can also be separated from the peripheral interface 124 and integrated in the processor 102 or corresponding peripherals.

The memory 104 can be used to store software programs and modules, and the processor 102 executes various functional applications and data processing by running the software programs and modules stored in the memory 104 . The memory 104 may include high-speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory 104 may further include a memory that is remotely located relative to the processor 102 , and these remote memories may be connected to the electronic main body 10 or the main display 120 through a network. Examples of the aforementioned networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.

The RF module 106 is used to receive and send electromagnetic waves, realize mutual conversion between electromagnetic waves and electrical signals, and communicate with communication networks or other devices. The RF module 106 may include various existing circuit elements for performing these functions, such as antennas, radio frequency transceivers, digital signal processors, encryption/decryption chips, Subscriber Identity Module (SIM) cards, memory, etc. . The RF module 106 can communicate with various networks such as the Internet, intranet, wireless network or communicate with other devices through the wireless network. The wireless network mentioned above may include a cellular telephone network, a wireless local area network or a metropolitan area network. The above-mentioned wireless network can use various communication standards, protocols and technologies, including but not limited to Global System for Mobile Communication (GSM), Enhanced Data GSM Environment (EDGE), wideband code Division multiple access technology (wideband code division multiple access, W-CDMA), code division multiple access technology (Code division access, CDMA), time division multiple access technology (time division multiple access, TDMA), wireless fidelity technology (Wireless, Fidelity, WiFi) (such as IEEE802.10A, IEEE 802.11b, IEEE802.11g and/or IEEE 802.11n), VoIP (Voice over internet protocal, VoIP), Worldwide Interoperability for Microwave Access, Wi-Max), other protocols for mail, instant messaging, and short messages, and any other suitable communication protocols, even those that have not yet been developed.

The audio circuit 110 , the earpiece 101 , the sound jack 103 , and the microphone 105 jointly provide an audio interface between the user and the electronic main body 10 or the main display 120 . Specifically, the audio circuit 110 receives sound data from the processor 102 , converts the sound data into electrical signals, and transmits the electrical signals to the earpiece 101 . The earpiece 101 converts electrical signals into sound waves that can be heard by the human ear. The audio circuit 110 also receives electrical signals from the microphone 105, converts the electrical signals into sound data, and transmits the sound data to the processor 102 for further processing. Audio data may be retrieved from the memory 104 or through the RF module 106 . In addition, audio data can also be stored in the memory 104 or sent through the RF module 106 .

The sensor 114 is arranged in the electronic main body 10 or in the main display screen 120, examples of the sensor 114 include but not limited to: light sensor, operation sensor, pressure sensor, acceleration sensor 114F, proximity sensor 114J and other sensors.

Specifically, the light sensor may include a light sensor and a pressure sensor. Wherein, the pressure sensor may be a sensor that detects pressure generated by pressing on the mobile terminal 100 . That is, the pressure sensor detects pressure generated by contact or press between the user and the mobile terminal, eg, pressure generated by contact or press between the user's ear and the mobile terminal. Therefore, the pressure sensor can be used to determine whether contact or pressing occurs between the user and the mobile terminal 100, and the magnitude of the pressure.

Please refer to FIG. 1 again. Specifically, in the embodiment shown in FIG. 1 , the light sensor and the pressure sensor are disposed adjacent to the display panel 111 . The light sensor can turn off the display output of the processor 102 when an object is close to the main display screen 120 , for example, when the electronic main body 10 moves to the ear.

As a type of motion sensor, the acceleration sensor 114F can detect the magnitude of acceleration in various directions (generally three axes), and can detect the magnitude and direction of gravity when it is stationary, and can be used to identify the application of the posture of the mobile terminal 100 (such as horizontal and vertical Screen switching, related games, magnetometer attitude calibration), vibration recognition related functions (such as pedometer, tap), etc. In addition, the electronic main body 10 can also be equipped with other sensors such as gyroscope, barometer, hygrometer, thermometer, etc., which will not be repeated here.

In this embodiment, the input module 118 may include the touch screen 109 arranged on the main display screen 120, and the touch screen 109 may collect the user's touch operations on or near it (for example, the user uses a finger, a stylus) operation of any suitable object or accessory on the touch screen 109 or near the touch screen 109), and drive the corresponding connection device according to the preset program. Optionally, the touch screen 109 may include a touch detection device and a touch controller. Wherein, the touch detection device detects the user's touch orientation, detects the signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, and The touch information is converted into touch point coordinates, and then sent to the processor 102, and can receive and execute commands sent by the processor 102. In addition, the touch detection function of the touch screen 109 can be realized by various types such as resistive, capacitive, infrared, and surface acoustic wave.

The main display screen 120 is used to display information input by the user, information provided to the user, and various graphical user interfaces of the electronic main body 10. These graphical user interfaces can be composed of graphics, text, icons, numbers, video and Any combination thereof may be used. In one example, the touch screen 109 may be disposed on the display panel 111 so as to form an integral body with the display panel 111 .

The power module 122 is used to provide power supply to the processor 102 and other components. Specifically, the power module 122 may include a power management system, one or more power sources (such as batteries or alternating current), a charging circuit, a power failure detection circuit, an inverter, a power status indicator light, and any other components related to the electronic body. Part 10 or the components related to the generation, management and distribution of power in the main display screen 120 .

The mobile terminal 100 further includes a locator 119, and the locator 119 is used to determine the actual location of the mobile terminal 100. In this embodiment, the locator 119 uses a positioning service to realize the positioning of the mobile terminal 100. The positioning service should be understood as obtaining the position information (such as longitude and latitude coordinates) of the mobile terminal 100 through a specific positioning technology. ), a technology or service that marks the position of a positioned object on an electronic map.

It should be understood that the above-mentioned mobile terminal 100 is not limited to a smart phone terminal, but refers to a computer device that can be used on the move. Specifically, the mobile terminal 100 refers to a mobile computer device equipped with an intelligent operating system, and the mobile terminal 100 includes but is not limited to a smart phone, a smart watch, a tablet computer, and the like.

In summary, the embodiment of the present application provides a proximity sensor calibration method, device, mobile terminal and computer readable medium. When the proximity sensor is detected to be activated, the proximity sensor will collect the distance between the proximity sensor and the surrounding target objects according to the preset calibration parameters. The proximity value collected by the proximity sensor is obtained. Judging whether the proximity value is greater than the preset standard value and less than the preset maximum threshold, if greater than or equal to the preset maximum threshold, it means that the proximity sensor is in normal use, for example, the user calls through a mobile terminal, if the proximity value is less than or equal to The preset standard value means that the opening position of the proximity sensor is not blocked by obstacles such as screen film or oil stains, and if the proximity value is greater than the preset standard value and less than the preset maximum threshold, it means that the current proximity value does not meet the standard and may It is caused by the fact that the opening position of the proximity sensor is not blocked by obstacles such as screen film or oil stains. Therefore, the preset calibration parameters are updated according to the difference between the proximity value and the preset standard value, so that Then the proximity sensor collects the proximity value according to the updated preset calibration parameter, and updates the preset calibration parameter according to the difference between the proximity value and the preset standard value, so that the proximity sensor collects the value according to the updated preset calibration parameter. The proximity value of the mobile terminal is closer to the preset standard value, which better avoids the malfunction of the mobile terminal during use due to the inaccurate proximity value collected by the proximity sensor, thereby improving the user experience.

When the state of the mobile terminal changes in the hands of the user after leaving the factory (such as film or oil stains, etc.), it can also be automatically calibrated, so that the proximity sensor can maintain the original initial value after the film is attached or oil stains, so that there will be no film. Or it is close to malfunction after being stained with oil.

In the description of this specification, descriptions referring to the terms "one embodiment", "some embodiments", "example", "specific examples", or "some examples" mean that specific features described in connection with the embodiment or example , structure, material or characteristic is included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms are not necessarily directed 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. In addition, those skilled in the art can combine and combine different embodiments or examples and features of different embodiments or examples described in this specification without conflicting with each other.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In the description of the present application, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

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 present application includes additional implementations in which functions may be performed out of the order shown or discussed, including in substantially simultaneous fashion or in reverse order depending on the functions involved, which shall It should be understood by those skilled in the art to which the embodiments of the present application belong.

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 processors, 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 (mobile terminal), 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 present application may be realized 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 application 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 application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limitations on the present application, and those skilled in the art can make the above-mentioned The embodiments are subject to changes, modifications, substitutions and variations.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still Modifications are made to the technical solutions described in the foregoing embodiments, or equivalent replacements are made to some of the technical features; and these modifications or replacements do not drive the essence of the corresponding technical solutions away from the spirit and scope of the technical solutions of the various embodiments of the present application.

Claims (10)

1. a kind of proximity sensor calibration method, which is characterized in that including：

When detecting that proximity sensor starts, proximity values of the proximity sensor according to default calibration parameter acquisition are obtained；

Judge whether the proximity values are more than preset standard value and less than default max-thresholds；

If so, updating the default calibration parameter according to the difference between the proximity values and the preset standard value.

2. according to the method described in claim 1, it is characterized in that, described judge whether the proximity values are more than preset standard value And less than default max-thresholds, including：

Judge whether the proximity values are more than default minimum threshold；

If more than default minimum threshold, judge whether the proximity values are more than preset standard value and are less than default max-thresholds, In, the preset standard value is more than the default minimum threshold.

3. according to the method described in claim 2, it is characterized in that, further including：

If the proximity values are less than or equal to default minimum threshold, by the difference between the preset standard parameter and default value As parameter difference；

The proximity values that the proximity sensor is acquired according to the parameter difference are obtained, as the updated proximity values；

Judge whether the updated proximity values are more than default minimum threshold；

If so, using the parameter difference as the preset standard parameter；

If it is not, the parameter difference is updated to the difference between the parameter difference and the default value, and execute again The proximity values that the proximity sensor is acquired according to the parameter difference are obtained, are preset until the updated proximity values are more than Minimum threshold.

4. according to the method described in claim 3, it is characterized in that, judging whether the updated proximity values are more than in advance If minimum threshold；If so, using the parameter difference as the preset standard parameter；If it is not, the parameter difference is updated to Difference between the parameter difference and the default value, and execute obtain the proximity sensor according to the parameter again The proximity values of difference acquisition, until the updated proximity values further include more than default minimum threshold：

Judge whether the updated proximity values are equal to the preset standard value；

If being equal to, using the parameter difference as the preset standard parameter；

If being not equal to, the parameter difference is updated to the difference between the parameter difference and the default value, and again It executes and obtains the proximity values that the proximity sensor is acquired according to the parameter difference, until the updated proximity values are equal to The preset standard value.

5. according to the method described in claim 3, it is characterized in that, described obtain the proximity sensor according to the parameter difference It is worth the proximity values of acquisition, as the updated proximity values, including：

Judge whether the parameter difference is more than zero；

If more than zero, the proximity values that the proximity sensor is acquired according to the parameter difference are obtained, as updated described Proximity values.

6. according to the method described in claim 5, it is characterized in that, the method further includes：

If being less than or equal to zero, the preset standard parameter is revised as zero.

7. according to any methods of claim 1-6, which is characterized in that described to obtain the proximity sensor according to default The proximity values of calibration parameter acquisition, including：

Obtain multiple initial proximity values of the proximity sensor according to default calibration parameter acquisition；

Obtain the average value of the multiple initial proximity values；

The proximity values that the average value is acquired as the proximity sensor.

8. a kind of proximity sensor calibrating installation, which is characterized in that including：

Acquiring unit, for when detecting that proximity sensor starts, obtaining the proximity sensor according to default calibration parameter The proximity values of acquisition；

Judging unit, for judging whether the proximity values are more than preset standard value and less than default max-thresholds；

Updating unit is used for if so, updating the default school according to the difference between the proximity values and the preset standard value Quasi- parameter.

9. a kind of mobile terminal, which is characterized in that including memory and processor, the memory is coupled with the processor； The memory store instruction, when executed by the processor so that the processor executes following operation：

When detecting that proximity sensor starts, proximity values of the proximity sensor according to default calibration parameter acquisition are obtained；

Judge whether the proximity values are more than preset standard value and less than default max-thresholds；

If so, updating the default calibration parameter according to the difference between the proximity values and the preset standard value.

10. a kind of computer-readable medium for the program code that can perform with processor, which is characterized in that said program code The processor is set to execute any one of claim 1-7 the methods.