WO2017028198A1

WO2017028198A1 - Terminal sleep and wake-up system

Info

Publication number: WO2017028198A1
Application number: PCT/CN2015/087332
Authority: WO
Inventors: 陈苑锋; 钟光华
Original assignee: 华为技术有限公司
Priority date: 2015-08-18
Filing date: 2015-08-18
Publication date: 2017-02-23
Also published as: CN106462335A

Abstract

A terminal sleep and wake-up system, method and device, comprising a sensor module, a touch module and a processing module, wherein: the sensor module (201) is for detecting a preset parameter capable of characterizing a terminal placement mode, and outputting corresponding first detection data; the touch module (202) is for detecting a screen drawing action on a terminal touchscreen, and outputting corresponding second detection data; and the processing module (200) is for controlling, when the terminal is in a sleep state, whether or not the terminal continues in the sleep state, according to the first detection data output by the sensor module and the second detection data output by the touch module. The system, method and device have high reliability.

Description

Sleep wake-up system, method and device for terminal

Technical field

The present invention relates to the field of terminal technologies, and in particular, to a sleep wake-up system, method and device for a terminal.

Background technique

With the development of technology, various terminals such as mobile phones and tablet computers have become an indispensable part of people's life work. These terminals usually have two states when they are turned on: sleep state with low power consumption and power consumption. A higher amount of work. In the prior art, the sleep wake-up of such a terminal uses a physical button wake-up scheme. As shown in FIG. 1 , when the terminal is in a sleep state, if the physical button B of the terminal is pressed, the core part of the terminal is SOC (System on The CPU (Central Processing Unit) in the Chip (system on chip) receives an interrupt signal, triggering the terminal to end the sleep state.

However, the physical button wake-up scheme is prone to false wake-up, and the frequent use of physical buttons for a long time may cause wear and tear problems, that is, the reliability of the existing scheme is low.

Summary of the invention

The embodiment of the invention provides a sleep wake-up system, method and device for a terminal, which have high reliability.

In a first aspect, a sleep wake-up system for a terminal is provided, which is characterized by comprising a sensor module, a touch module and a processing module, wherein:

The sensor module is configured to detect a preset parameter capable of characterizing a terminal placement mode, and output corresponding first detection data;

The touch module is configured to detect a screen capture action on the touch screen of the terminal, and output corresponding second detection data;

The processing module is configured to control whether the terminal continues according to the first detection data output by the sensor module and the second detection data output by the touch module when the terminal is in a sleep state. Continue to sleep.

With reference to the first aspect, in a first possible implementation, the processing module is specifically configured to: when the first detection data output by the sensor module is characterized by a terminal placement mode that is not a non-use state placement mode, When the screen capture action indicated by the second detection data output by the touch module matches the preset action, the terminal is controlled not to continue to be in a sleep state; otherwise, the terminal is controlled to continue to be in a sleep state.

With reference to the first aspect, or the first possible implementation manner of the first aspect, in a second possible implementation, the processing module is further configured to: when the first detection data is output by the sensor module When the placement mode is not the non-use state placement mode, the touch module is controlled not to be in a low power consumption state, and the second detection data can be output; when the first detection data output by the sensor module is characterized by the terminal placement mode being in a non-use state When the mode is placed, the touch module is controlled to be in a low power consumption state, and the second detection data is not output.

In conjunction with the first possible implementation of the first aspect, or the second possible implementation of the first aspect, in a third possible implementation, the non-use state placement mode includes a pocket placement mode, a desktop placement Mode, travel placement mode.

With reference to the first aspect, the first possible implementation manner of the first aspect, the second possible implementation manner of the first aspect, or the third possible implementation manner of the first aspect, in the fourth possible implementation manner The sensor module includes an acceleration sensor, and the preset parameters include an acceleration of the terminal; and/or

The sensor module includes a magnetic field sensor, and the preset parameters include a magnetic field in which the terminal is placed; and/or

The sensor module includes a tilt sensor, the preset parameter includes an inclination angle of the terminal; and/or

The sensor module includes an ambient light sensor, and the preset parameters include brightness of a terminal placement environment;

The sensor module includes a distance sensor, and the preset parameter includes a distance between the terminal touch screen and the front item.

With reference to the first aspect, the first possible implementation of the first aspect, the second possible implementation of the first aspect, the third possible implementation of the first aspect, or the fourth possible aspect of the first aspect In a fifth possible implementation manner, the processing module is integrated in a system on a chip of the terminal.

A second aspect provides a sleep wake-up method for a terminal, which is characterized by:

Obtaining first detection data, where the first detection data is detection data capable of characterizing a preset parameter of a terminal placement mode;

Obtaining second detection data, where the second detection data is detection data corresponding to a screen capture action on the touch screen of the terminal;

When the terminal is in the sleep state, according to the first detection data and the second detection data, whether the terminal continues to be in a sleep state is controlled.

With reference to the second aspect, in a first possible implementation manner, controlling whether the terminal continues to be in a dormant state according to the first detection data and the second detection data includes:

When the terminal placement mode characterized by the first detection data is not the non-use state placement mode, and the screen capture action represented by the second detection data matches the preset action, the terminal is controlled to not continue to be in a sleep state; otherwise And controlling the terminal to continue to sleep.

With reference to the second aspect, or the first possible implementation manner of the second aspect, in the second possible implementation manner, before acquiring the second detection data, the method further includes:

Determining that the terminal placement mode characterized by the first detection data is not a non-use state placement mode.

In conjunction with the first possible implementation of the second aspect, or the second possible implementation of the second aspect, in a third possible implementation, the non-use state placement mode includes a pocket placement mode, a desktop placement Mode, travel placement mode.

With reference to the second aspect, the first possible implementation manner of the second aspect, the second possible implementation manner of the second aspect, or the third possible implementation manner of the second aspect, in the fourth possible implementation manner The preset parameters include at least one of an acceleration of the terminal, a magnetic field of the terminal placement environment, a tilt angle of the terminal, a brightness of the terminal placement environment, and a distance between the terminal touch screen and the front item.

A third aspect provides a sleep wake-up device for a terminal, which is characterized by comprising:

a first acquiring unit, configured to acquire first detection data, where the first detection data is detection data that can represent a preset parameter of a terminal placement mode;

a second acquiring unit, configured to acquire second detection data, where the second detection data is detection data corresponding to a screenping action on the touch screen of the terminal;

And a control unit, configured to control, according to the first detection data and the second detection data, whether the terminal continues to be in a sleep state when the terminal is in a sleep state.

With reference to the third aspect, in a first possible implementation, the control unit is configured to: when the terminal placement mode characterized by the first detection data is not a non-use state placement mode, and the second detection data When the characterized screening action and the preset action match, the terminal is controlled not to continue to be in a sleep state; otherwise, the terminal is controlled to continue to be in a sleep state.

With reference to the third aspect, or the first possible implementation manner of the third aspect, in a second possible implementation, the control unit is further configured to: before the second acquiring unit acquires the second detection data, Determining that the terminal placement mode characterized by the first detection data is not a non-use state placement mode.

In conjunction with the first possible implementation of the third aspect, or the second possible implementation of the third aspect, in a third possible implementation, the non-use state placement mode includes a pocket placement mode, a desktop placement Mode, travel placement mode.

With reference to the third aspect, the first possible implementation manner of the third aspect, the second possible implementation manner of the third aspect, or the third possible implementation manner of the third aspect, in the fourth possible implementation manner The preset parameters include at least one of an acceleration of the terminal, a magnetic field of the terminal placement environment, a tilt angle of the terminal, a brightness of the terminal placement environment, and a distance between the terminal touch screen and the front item.

According to the sleep wake-up system of the terminal provided by the first aspect, or the sleep wake-up method of the terminal provided by the second aspect, or the sleep wake-up device of the terminal provided by the third aspect, comprehensively determining whether to wake up the terminal according to the terminal placement mode and the screen swipe action By ending the sleep state, compared with the prior art, the number of occurrences of false wake-ups can be reduced, and physical buttons are not required, and reliability is high.

DRAWINGS

The drawings are intended to provide a further understanding of the invention, and are intended to be a In the drawing:

1 is a schematic diagram of a sleep wakeup scheme of a terminal in the prior art;

FIG. 2 is a schematic structural diagram of a sleep wake-up system of a terminal according to an embodiment of the present disclosure;

FIG. 3 is a second schematic structural diagram of a sleep wake-up system of a terminal according to an embodiment of the present disclosure;

4 is a schematic structural diagram of an SOC of a terminal according to an embodiment of the present invention;

FIG. 5 is a schematic flowchart of processing of a processing module in a sleep wake-up system of a terminal according to an embodiment of the present disclosure;

FIG. 6 is a schematic flowchart of a sleep wakeup method of a terminal according to an embodiment of the present invention;

FIG. 7 is a schematic flowchart of a sleep wake-up device of a terminal according to an embodiment of the present invention.

detailed description

The present invention provides a dormant wake-up system, method, and apparatus for a terminal, and a preferred embodiment of the present invention will be described below with reference to the accompanying drawings. The preferred embodiments described herein are for illustrative purposes only and are not intended to limit the invention. And in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

The embodiment of the present invention provides a sleep wake-up system for a terminal, which can be applied to various terminals such as a mobile phone and a tablet computer. The system, as shown in FIG. 2, can include a sensor module 201, a touch module 202, and a processing module 200, where:

The sensor module 201 is configured to detect a preset parameter that can represent a terminal placement mode, and output corresponding first detection data.

The touch module 202 is configured to detect a screen capture action on the touch screen of the terminal, and output corresponding second detection data.

The processing module 200 is configured to output according to the sensor module 201 when the terminal is in a sleep state. The first detection data and the second detection data output by the touch module 202 control whether the terminal continues to be in a sleep state.

That is, the processing module 200 reads the first detection data output by the sensor module 201 and the second detection data output by the touch module 202; when the terminal placement mode represented by the first detection data output by the sensor module 201 is not the non-use state placement mode, When the screen capture action indicated by the second detection data output by the touch module 202 matches the preset action, the control terminal does not continue to be in the sleep state; otherwise, the control terminal continues to be in the sleep state.

The sleep wake-up system of the terminal provided by the embodiment of the present invention is a system independent of the terminal CPU. When the terminal sleeps, the terminal CPU does not work, but the sleep wake-up system works all the time, and comprehensively judges whether according to the terminal placement mode and the screen-drawing action. The wake-up signal is sent to the CPU to wake up the terminal and end the sleep state. Compared with the prior art, the number of occurrences of false wake-up can be reduced, and the physical button is not needed, and the reliability is high.

In actual implementation, as shown in FIG. 3 , the sensor module 201 may include, but is not limited to, at least one of an acceleration sensor, a magnetic field sensor, a tilt sensor, an ambient light sensor, and a distance sensor.

When the sensor module 201 specifically includes an acceleration sensor such as an accelerometer ACC, the preset parameters include an acceleration of the terminal.

When the sensor module 201 specifically includes a magnetic field sensor such as a magnetometer MAG, the preset parameters include a magnetic field of the terminal placement environment.

When the sensor module 201 specifically includes a tilt sensor such as a gyroscope GYO, the preset parameters include an inclination angle of the terminal.

When the sensor module 201 specifically includes an ambient light sensor, the preset parameters include the brightness of the terminal placement environment.

When the sensor module 201 specifically includes a proximity sensor PS and the like, the preset parameters include a distance between the terminal touch screen and the front item.

It should be noted that the various sensors shown in FIG. 3 and the foregoing various preset parameters are merely examples, and are not intended to limit the present invention. Other parameters capable of characterizing the terminal placement mode may be used as pre-invention in the embodiments of the present invention. Set the parameters and set the corresponding sensor for detection.

Since the touch module 202 consumes less power when the detection data is not output, it is in a low power consumption state; and when the detection data is output, the power consumption is high. Therefore, the processing module 200 is further configured to: when the terminal placement mode represented by the first detection data output by the sensor module 201 is not in the non-use state placement mode, control the touch module 202 not to be in a low power consumption state, and can output The second detection data; when the terminal placement mode represented by the first detection data output by the sensor module 201 is the non-use state placement mode, the touch module 202 is controlled to be in a low power consumption state, and the second detection data is not output.

When the terminal placement mode represented by the first detection data output by the sensor module 201 is the non-use state placement mode, the screen capture action on the touch screen of the terminal is a user's malfunction. At this time, the processing module 200 does not need to read the output of the touch module 202. The second detection data can therefore not control the touch module 202 to exit the low power state, and the system power consumption can be reduced by reducing the power consumption of the trigger module 202.

The above non-use state placement mode refers to a placement mode when the terminal is not normally used by the user. Generally, the common placement positions of the terminal when the user is not normally used by the user are: the bag, the desktop, and the traveling user's hand, respectively corresponding to the pocket placement mode, the desktop placement mode, and the travel placement mode. In the embodiment of the present invention, the non-use state placement mode may specifically include, but is not limited to, at least one of a pocket placement mode, a desktop placement mode, and a travel placement mode.

It is judged whether the terminal placement mode is a pocket placement mode, and the determination is whether the placement position of the terminal is in the bag; if the sleep wake-up system shown in FIG. 3 is adopted, the detection data output by the ambient light sensor and the distance sensor can be mainly combined with other The detection data output by the sensor determines whether the placement position of the terminal is in the bag.

It is judged whether the terminal placement mode is the desktop placement mode, and the determination is whether the placement position of the terminal is on the desktop; if the sleep wake-up system shown in FIG. 3 is adopted, the detection data output by the acceleration sensor may be combined with the detection data output by other sensors. Determine whether the placement position of the terminal is in the bag.

It is judged whether the terminal placement mode is the traveling placement mode, and the determination is whether the placement position of the terminal is in the hand of the traveling user; if the sleep wake-up system shown in FIG. 3 is adopted, the detection data outputted by the acceleration sensor may be combined with the detection of the output of other sensors. The data determines whether the placement position of the terminal is in the bag.

Further, the processing module 200 may be located outside the SOC of the terminal. Preferably, as shown in FIG. 4, the processing module 200 may be integrated into the SOC of the terminal to ensure the response speed. 4 is a schematic diagram of a SOC, which mainly includes a CPU, a modem, a DDRC (Double Date Rate DRAM controller) of a DRAM (Dynamic Random Access Memory), and a processing module 200. .

In actual implementation, the processing module 200 that has been working can use the low-power ARM processor as the core processing unit, and the power consumption is low; and the processing module 200 can have a built-in SRAM (Static Dynamic Random Access Memory). Programs running on ARM processors can be stored directly on SRAM, eliminating the need for external memory, improving processing efficiency and saving power.

Of course, the processing module 200 can be implemented by using other processor chips, which is not exemplified herein.

Because the processing module 200 is always in operation, it can be powered independently. In actual implementation, technologies such as memory segmentation shutdown can be used to reduce power consumption.

In summary, for the terminal in the dormant state, when the touch screen of the terminal has a swipe action, the specific processing flow of the processing module 200 in the sleep wake-up system provided by the embodiment of the present invention may be as shown in FIG. 5, and includes the following steps:

Step 501: Read first detection data output by the sensor module 201.

Step 502: Determine whether the terminal placement mode represented by the first detection data output by the sensor module 201 is a non-use state placement mode.

When the terminal detection mode indicated by the first detection data output by the sensor module 201 is the non-use state placement mode, proceed to step 503;

When the terminal placement mode represented by the first detection data output by the sensor module 201 is not the non-use state placement mode, the process proceeds to step 504.

Step 503: Control the touch module 202 to be in a low power consumption state, and not output the second detection data.

At this point, the processing flow ends, and no wake-up signal is sent to the terminal CPU, that is, the terminal is not woken up.

Step 504: Control the touch module 202 not to be in a low power consumption state, and output second detection data.

Step 505: Read second detection data output by the touch module 202.

Step 506: Determine whether the screen capture action and the preset action represented by the second detection data output by the touch module 202 match.

When the screen capture action represented by the second detection data output by the touch module 202 matches the preset action, the wake-up signal is sent to the terminal CPU, that is, the terminal is woken up;

When the screen capture action represented by the second detection data output by the touch module 202 does not match the preset action, the wake-up signal is not sent to the terminal CPU, that is, the terminal is not woken up.

It can be seen that the sleep wake-up system of the terminal provided by the embodiment of the present invention has high reliability and low power consumption.

Based on the same inventive concept, the embodiment of the present invention further provides a sleep waking method for a terminal. As shown in FIG. 6, the method may include the following steps:

Step 601: Acquire first detection data, where the first detection data is detection data that can represent a preset parameter of a terminal placement mode;

Step 602: Acquire second detection data, where the second detection data is detection data corresponding to a screen capture action on the touch screen of the terminal;

Step 603: When the terminal is in the sleep state, control whether the terminal continues to be in the sleep state according to the first detection data and the second detection data.

The step 603 is to control whether the terminal continues to be in a dormant state according to the first detection data and the second detection data, and specifically includes:

When the terminal placement mode represented by the first detection data is not in the non-use state placement mode, and the screen capture action represented by the second detection data matches the preset action, the control terminal does not continue to be in the sleep state; otherwise, the control terminal continues Is in a dormant state.

Preferably, before acquiring the second detection data in step 602, the method further includes:

For specific implementations, reference may be made to the foregoing system embodiments, and details are not described herein.

Based on the same inventive concept, corresponding to the sleep wake-up method of the foregoing terminal, the embodiment of the present invention further provides a sleep wake-up device for the terminal. As shown in FIG. 7 , the following may specifically include the following units:

The first acquiring unit 701 is configured to acquire first detection data, where the first detection data is capable of being characterized Detection data of preset parameters of the terminal placement mode;

The second acquiring unit 702 is configured to acquire second detection data, where the second detection data is detection data corresponding to a screenping action on the touch screen of the terminal;

The control unit 700 is configured to control whether the terminal continues to be in a sleep state according to the first detection data and the second detection data when the terminal is in a sleep state.

The control unit 700 is configured to: when the terminal placement mode represented by the first detection data is not in the non-use state placement mode, and the screen capture action represented by the second detection data matches the preset action, the control terminal does not continue In the sleep state; otherwise, the control terminal continues to sleep.

Preferably, the control unit 700 is further configured to: before the second acquiring unit 702 acquires the second detection data, determine that the terminal placement mode characterized by the first detection data is not the non-use state placement mode.

In the embodiment of the present invention, the non-use state placement mode may include, but is not limited to, at least one of a pocket placement mode, a desktop placement mode, and a travel placement mode.

In actual implementation, the foregoing preset parameters may include, but are not limited to, at least one of acceleration of the terminal, a magnetic field of the terminal placement environment, a tilt angle of the terminal, a brightness of the terminal placement environment, and a distance between the terminal touch screen and the front item.

Those skilled in the art will appreciate that embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the invention can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) including computer usable program code.

The present invention has been described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (system), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or FIG. These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device. To implement the functions specified in one or more blocks of a flow or a flow and/or block diagram of a flowchart Device.

The computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device. The apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.

These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device. The instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

While the preferred embodiment of the invention has been described, it will be understood that Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and the modifications and

It is apparent that those skilled in the art can make various modifications and variations to the embodiments of the invention without departing from the spirit and scope of the embodiments of the invention. Thus, it is intended that the present invention cover the modifications and modifications of the embodiments of the invention.

Claims

A sleep wake-up system for a terminal, comprising: a sensor module, a touch module and a processing module, wherein:

The sensor module is configured to detect a preset parameter capable of characterizing a terminal placement mode, and output corresponding first detection data;

The touch module is configured to detect a screen capture action on the touch screen of the terminal, and output corresponding second detection data;

The processing module is configured to control whether the terminal continues to be in a sleep state according to the first detection data output by the sensor module and the second detection data output by the touch module when the terminal is in a sleep state.
The system of claim 1, wherein the processing module is configured to: when the first detection data output by the sensor module is characterized by a terminal placement mode that is not a non-use state placement mode, and the touch module When the output of the second detection data is matched by the screen capture action and the preset action, the terminal is controlled to not continue to be in a sleep state; otherwise, the terminal is controlled to continue to be in a sleep state.
The system according to claim 1 or 2, wherein the processing module is further configured to: when the terminal placement mode represented by the first detection data output by the sensor module is not in a non-use state placement mode, The touch module is not in a low power consumption state, and is capable of outputting second detection data; when the terminal placement mode represented by the first detection data output by the sensor module is a non-use state placement mode, controlling the touch module to be in low power consumption Status, no second detection data is output.
The system of claim 2 or 3, wherein the non-use state placement mode comprises a pocket placement mode, a desktop placement mode, a travel placement mode.
A system according to any one of claims 1 to 4, wherein

The sensor module includes an acceleration sensor, and the preset parameters include an acceleration of the terminal; and/or

The sensor module includes a magnetic field sensor, and the preset parameters include a magnetic field of the terminal placement environment Field; and/or

The sensor module includes a tilt sensor, the preset parameter includes an inclination angle of the terminal; and/or

The sensor module includes an ambient light sensor, and the preset parameters include brightness of a terminal placement environment;

The sensor module includes a distance sensor, and the preset parameter includes a distance between the terminal touch screen and the front item.
A system according to any of claims 1-5, wherein said processing module is integrated in a system on a chip of said terminal.
A sleep wake-up method for a terminal, comprising:

Obtaining first detection data, where the first detection data is detection data capable of characterizing a preset parameter of a terminal placement mode;

Obtaining second detection data, where the second detection data is detection data corresponding to a screen capture action on the touch screen of the terminal;

When the terminal is in the sleep state, according to the first detection data and the second detection data, whether the terminal continues to be in a sleep state is controlled.
The method of claim 7, wherein controlling whether the terminal continues to be in a sleep state according to the first detection data and the second detection data comprises:

When the terminal placement mode characterized by the first detection data is not the non-use state placement mode, and the screen capture action represented by the second detection data matches the preset action, the terminal is controlled to not continue to be in a sleep state; otherwise And controlling the terminal to continue to sleep.
The method according to claim 7 or 8, wherein before acquiring the second detection data, the method further comprises:

Determining that the terminal placement mode characterized by the first detection data is not a non-use state placement mode.
The method of claim 8 or 9, wherein the non-use state placement mode comprises a pocket placement mode, a desktop placement mode, a travel placement mode.
The method of any of claims 7-10, wherein the preset parameters comprise At least one of acceleration of the terminal, a magnetic field of the terminal placement environment, a tilt angle of the terminal, a brightness of the terminal placement environment, and a distance between the terminal touch screen and the front item.
A sleep wake-up device for a terminal, comprising:

a first acquiring unit, configured to acquire first detection data, where the first detection data is detection data that can represent a preset parameter of a terminal placement mode;

a second acquiring unit, configured to acquire second detection data, where the second detection data is detection data corresponding to a screenping action on the touch screen of the terminal;

And a control unit, configured to control, according to the first detection data and the second detection data, whether the terminal continues to be in a sleep state when the terminal is in a sleep state.
The device according to claim 12, wherein the control unit is configured to: when the terminal placement mode characterized by the first detection data is not a non-use state placement mode, and the second detection data is characterized When the screen capture action and the preset action match, the terminal is controlled to not continue to be in a sleep state; otherwise, the terminal is controlled to continue to be in a sleep state.
The device according to claim 12 or 13, wherein the control unit is further configured to: before the second obtaining unit acquires the second detection data, determine that the terminal placement mode characterized by the first detection data is not Place the mode for non-use status.
The apparatus according to claim 13 or 14, wherein the non-use state placement mode comprises a pocket placement mode, a desktop placement mode, and a travel placement mode.
The device according to any one of claims 12-15, wherein the preset parameters include an acceleration of the terminal, a magnetic field of the terminal placement environment, a tilt angle of the terminal, a brightness of the terminal placement environment, a touch screen of the terminal, and a front object. At least one of the distances between.