CN106502368B - OTG peripheral control method and system of mobile terminal - Google Patents
OTG peripheral control method and system of mobile terminal Download PDFInfo
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- CN106502368B CN106502368B CN201610896543.5A CN201610896543A CN106502368B CN 106502368 B CN106502368 B CN 106502368B CN 201610896543 A CN201610896543 A CN 201610896543A CN 106502368 B CN106502368 B CN 106502368B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/26—Power supply means, e.g. regulation thereof
- G06F1/32—Means for saving power
- G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
- G06F1/3234—Power saving characterised by the action undertaken
- G06F1/325—Power saving in peripheral device
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/26—Power supply means, e.g. regulation thereof
- G06F1/266—Arrangements to supply power to external peripherals either directly from the computer or under computer control, e.g. supply of power through the communication port, computer controlled power-strips
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/26—Power supply means, e.g. regulation thereof
- G06F1/32—Means for saving power
- G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
- G06F1/3206—Monitoring of events, devices or parameters that trigger a change in power modality
- G06F1/3215—Monitoring of peripheral devices
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/10—Program control for peripheral devices
- G06F13/102—Program control for peripheral devices where the programme performs an interfacing function, e.g. device driver
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
Abstract
The invention discloses a method and a system for controlling OTG (on-the-go) peripheral equipment of a mobile terminal, wherein the method comprises the following steps: when the mobile terminal is connected with the OTG peripheral, acquiring the lowest working voltage of the connected OTG peripheral; when detecting that the continuous no-data transmission of the OTG peripheral exceeds a set time threshold, setting the power supply voltage of the mobile terminal to the OTG peripheral to be the lowest working voltage; when data transmission of the OTG peripheral equipment is detected, if the power supply voltage of the mobile terminal to the OTG peripheral equipment is set to be the lowest working voltage at present, the power supply voltage of the mobile terminal to the OTG peripheral equipment is reset to be normal voltage. The invention provides a power-saving OTG peripheral control method, aiming at reducing the power supply voltage when a USB peripheral is idle and reducing the power consumption when the USB peripheral is idle.
Description
Technical Field
The invention relates to the technical field of mobile terminals, in particular to a method and a system for controlling an OTG peripheral of a mobile terminal.
Background
The OTG is a function capable of connecting an external device, such as a usb disk, a digital camera, a digital video camera, a mobile phone, a mobile hard disk, and the like.
The OTG (abbreviation of On-The-Go) function can make The mobile terminal as The host of The USB device, thus making The function of The mobile terminal more tend to PC (abbreviation of Personal Computer), when The mobile terminal starts The OTG function and connects various USB peripherals (such as mouse, keyboard, etc.), The mobile terminal will always provide 5V voltage for The connected USB peripherals, and The USB peripherals are also in idle; therefore, the problem of high power consumption when the USB peripheral is idle exists in the prior art.
Accordingly, the prior art is yet to be improved and developed.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide a method and a system for controlling an OTG peripheral of a mobile terminal, aiming at the above-mentioned defects in the prior art. The invention provides a power-saving OTG peripheral control method, aiming at reducing the power supply voltage when a USB peripheral is idle and reducing the power consumption when the USB peripheral is idle.
The technical scheme adopted by the invention for solving the technical problem is as follows:
an OTG peripheral control method of a mobile terminal comprises the following steps:
a, when a mobile terminal is connected with an OTG peripheral, acquiring the lowest working voltage of the connected OTG peripheral;
b, when detecting that the continuous no-data transmission of the OTG peripheral exceeds a set time threshold, setting the power supply voltage of the mobile terminal to the OTG peripheral to be the lowest working voltage;
and C, when detecting the data transmission of the OTG peripheral equipment, if the power supply voltage of the mobile terminal to the OTG peripheral equipment is set to be the lowest working voltage at present, resetting the power supply voltage of the mobile terminal to the OTG peripheral equipment to be a normal voltage.
The OTG peripheral control method of the mobile terminal, wherein the step A comprises:
a1, when detecting that the mobile terminal is connected with an OTG peripheral, prompting a user to continuously use the OTG peripheral in a set time period;
a2, the mobile terminal acquires data transmission of the OTG peripheral, and the mobile terminal reduces the power supply voltage of the OTG peripheral by a set voltage step value at set time intervals;
a3, when detecting that the OTG peripheral does not have data transmission, acquiring the power supply voltage of the OTG peripheral which is currently set; and adding the voltage step to the power supply voltage to obtain the lowest working voltage of the connected OTG peripheral equipment.
The OTG peripheral control method of the mobile terminal is characterized in that the set time period is 5 seconds.
The OTG peripheral control method of the mobile terminal, wherein,
the set time interval was 0.2 seconds.
The OTG peripheral control method of the mobile terminal is characterized in that the voltage stepping value is 0.1V.
The OTG peripheral control method of the mobile terminal, wherein the step B further comprises:
whether the OTG peripheral equipment is used for data transmission can be judged by detecting whether the DP or DN pin on the USB line has level change, when the level of the DP or DN pin on the USB line changes, data transmission is indicated, and when the level of the DP or DN pin on the USB line does not change, no data transmission is indicated.
The OTG peripheral control method of the mobile terminal, wherein the time threshold in the step B is 20 seconds.
The OTG peripheral control method of the mobile terminal, wherein the step C further comprises: the USB interface circuit can judge whether the level of the DP pin or the DN pin on the USB line changes or not by detecting whether the level of the DP pin or the DN pin on the USB line changes or not, and indicates that data transmission exists when the level of the DP pin or the DN pin on the USB line changes or does not exist.
An OTG peripheral control system of a mobile terminal, comprising:
the acquisition module is used for controlling the acquisition of the lowest working voltage of the connected OTG peripheral when the mobile terminal is connected with the OTG peripheral;
the first data transmission control module is used for setting the power supply voltage of the mobile terminal to the OTG peripheral equipment to be the lowest working voltage when detecting that the continuous no-data transmission of the OTG peripheral equipment exceeds a set time threshold;
and the second data transmission control module is used for resetting the power supply voltage of the mobile terminal to the OTG peripheral to be a normal voltage if the currently set power supply voltage of the mobile terminal to the OTG peripheral is the lowest working voltage when detecting the data transmission of the OTG peripheral.
The OTG peripheral control system of the mobile terminal, wherein the obtaining module comprises:
the detection and prompt unit is used for prompting a user to continuously use the OTG peripheral in a set time period when the mobile terminal is detected to be connected with the OTG peripheral;
the acquisition unit is used for controlling the mobile terminal to acquire data transmission of the OTG peripheral equipment, and the mobile terminal reduces the power supply voltage of the OTG peripheral equipment at set voltage step values at set time intervals;
the voltage calculation unit is used for acquiring the currently set power supply voltage of the OTG peripheral when detecting that the OTG peripheral has no data transmission; and adding the voltage step to the power supply voltage to obtain the lowest working voltage of the connected OTG peripheral equipment.
According to the OTG peripheral control method and system of the mobile terminal, provided by the invention, when the mobile terminal is connected with the OTG peripheral, the lowest working voltage of the connected OTG peripheral is obtained; when detecting that the continuous no-data transmission of the OTG peripheral exceeds a set time threshold, setting the power supply voltage of the mobile terminal to the OTG peripheral to be the lowest working voltage; when data transmission of the OTG peripheral equipment is detected, if the power supply voltage of the mobile terminal to the OTG peripheral equipment is set to be the lowest working voltage at present, the power supply voltage of the mobile terminal to the OTG peripheral equipment is set to be a normal voltage. Therefore, the power supply voltage of the USB peripheral when the USB peripheral is idle is reduced, the power consumption of the USB peripheral when the USB peripheral is idle is reduced, the battery energy of the mobile terminal is saved under the condition that the use of the OTG by a user is not influenced, and the battery endurance of the mobile terminal is improved.
Drawings
Fig. 1 is a flowchart of a method for controlling an OTG peripheral of a mobile terminal according to a first preferred embodiment of the present invention.
Fig. 2 is a flowchart of a method for controlling an OTG peripheral of a mobile terminal according to a second preferred embodiment of the present invention.
Fig. 3 is a functional block diagram of a preferred embodiment of the OTG peripheral control system of the mobile terminal of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer and clearer, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, fig. 1 is a flowchart illustrating a method for controlling an OTG peripheral of a mobile terminal according to a first preferred embodiment of the present invention. As shown in fig. 1, a method for controlling an OTG peripheral of a mobile terminal according to a first embodiment of the present invention includes the following steps:
and S100, when the mobile terminal is connected with the OTG peripheral, acquiring the lowest working voltage of the connected OTG peripheral.
In the embodiment of the invention, when the mobile terminal is connected with the OTG peripheral, the lowest working voltage of the connected OTG peripheral needs to be acquired.
Specifically, when the mobile terminal is detected to be connected with the OTG peripheral, prompting a user to continuously use the OTG peripheral in a set time period; preferably, the set time period is 5 seconds.
The mobile terminal acquires data transmission of the OTG peripheral equipment, and reduces the power supply voltage of the OTG peripheral equipment at set voltage step values at set time intervals; preferably, the set time interval is 0.2 seconds, and the voltage step value is 0.1 volt.
When detecting that the OTG peripheral does not have data transmission, acquiring the power supply voltage of the OTG peripheral which is currently set; and adding the voltage step to the power supply voltage to obtain the lowest working voltage of the connected OTG peripheral equipment.
And step S200, when detecting that the continuous no-data transmission of the OTG peripheral exceeds a set time threshold, setting the power supply voltage of the mobile terminal to the OTG peripheral to be the lowest working voltage.
Whether the OTG peripheral is in data transmission can be judged by detecting whether the DP or DN pin on the USB line has level change, when the level of the DP or DN pin on the USB line changes, data transmission is indicated, and when the level of the DP or DN pin on the USB line does not change, no data transmission is indicated. Wherein the time threshold is 20 seconds.
Step S300, when detecting the data transmission of the OTG peripheral, if the power supply voltage of the mobile terminal to the OTG peripheral is set to be the lowest working voltage, resetting the power supply voltage of the mobile terminal to the OTG peripheral to be a normal voltage.
In the invention, the judgment can be carried out by detecting whether the level of the DP or DN pin on the USB line changes, when the level of the DP or DN pin on the USB line changes, the data transmission is indicated, and when the level of the DP or DN pin on the USB line does not change, the data transmission is not indicated.
Referring to fig. 2, fig. 2 is a flowchart illustrating a method for controlling an OTG peripheral of a mobile terminal according to a second preferred embodiment of the present invention. As shown in fig. 2, a method for controlling an OTG peripheral of a mobile terminal according to a second embodiment of the present invention includes the following steps:
s1, when the mobile terminal is connected with the OTG peripheral, acquiring the lowest working voltage of the connected OTG peripheral;
s2, when detecting that the continuous no-data transmission of the OTG peripheral exceeds a set time threshold, setting the power supply voltage of the mobile terminal to the OTG peripheral to be the lowest working voltage;
and S3, when detecting the data transmission of the OTG peripheral, if the power supply voltage of the mobile terminal to the OTG peripheral is set to be the lowest working voltage, setting the power supply voltage of the mobile terminal to the OTG peripheral to be normal voltage.
The normal voltage is a working voltage for normally transmitting data by the OTG peripheral, for example, a rated voltage for the OTG peripheral to work.
When detecting that the mobile terminal is connected with the OTG peripheral, the S1 prompts the user to continuously use the OTG peripheral within the set 5 seconds; when the OTG peripheral equipment is continuously used, the mobile terminal continuously performs data communication with the OTG peripheral equipment; the mobile terminal detects data transmission of the OTG peripheral equipment, and reduces the power supply voltage of the OTG peripheral equipment by a voltage step value of 0.1V every 0.2 seconds; when detecting that the OTG peripheral does not have data transmission, acquiring the power supply voltage of the OTG peripheral which is currently set; adding voltage step to the power supply voltage to obtain the lowest working voltage of the connected OTG peripheral equipment;
whether the OTG peripheral is in data transmission or not can be judged by detecting whether the level of the DP or DN pin on the USB line changes or not, when the level of the DP or DN pin on the USB line changes, data transmission is indicated, and when the level of the DP or DN pin on the USB line does not change, no data transmission is indicated.
When detecting that the continuous no-data transmission of the OTG peripheral exceeds a set time threshold, the S2 sets the power supply voltage of the mobile terminal to the OTG peripheral to the lowest working voltage; the time threshold referred to herein is taken to be 20 seconds; when the OTG peripheral is powered by the lowest working voltage, the data transmission between the OTG peripheral and the mobile terminal can still be carried out smoothly, but the stability is not good enough; therefore, in S3, once it is detected that data transmission is performed between the mobile terminal and the OTG, the power supply voltage of the OTG peripheral is set to be 5V, so that the OTG peripheral can stably operate.
Therefore, the invention provides a power-saving OTG peripheral control method, aiming at reducing the power supply voltage when the USB peripheral is idle and reducing the power consumption when the USB peripheral is idle.
Based on the above method embodiment, the present invention further provides an OTG peripheral control system of a mobile terminal, as shown in fig. 3, the system includes:
the obtaining module 210 is configured to obtain a lowest working voltage of the connected OTG peripheral when the mobile terminal is connected to the OTG peripheral; as described above.
The first data transmission control module 220 is configured to set a power supply voltage of the mobile terminal to the OTG peripheral to the lowest working voltage when detecting that continuous no data transmission of the OTG peripheral exceeds a set time threshold; as described above.
The second data transmission control module 230 is configured to, when data transmission of the OTG peripheral is detected, reset the power supply voltage from the mobile terminal to the OTG peripheral to a normal voltage if the currently set power supply voltage from the mobile terminal to the OTG peripheral is the lowest working voltage; as described above.
The OTG peripheral control system of the mobile terminal, wherein the obtaining module comprises:
the detection and prompt unit is used for prompting a user to continuously use the OTG peripheral in a set time period when the mobile terminal is detected to be connected with the OTG peripheral; as described above.
The acquisition unit is used for controlling the mobile terminal to acquire data transmission of the OTG peripheral equipment, and the mobile terminal reduces the power supply voltage of the OTG peripheral equipment at set voltage step values at set time intervals; as described above.
The voltage calculation unit is used for acquiring the currently set power supply voltage of the OTG peripheral when detecting that the OTG peripheral has no data transmission; adding voltage step to the power supply voltage to obtain the lowest working voltage of the connected OTG peripheral equipment; as described above.
In summary, according to the method and the system for controlling the OTG peripheral of the mobile terminal provided by the present invention, when the mobile terminal is connected to the OTG peripheral, the lowest working voltage of the connected OTG peripheral is obtained; when detecting that the continuous no-data transmission of the OTG peripheral exceeds a set time threshold, setting the power supply voltage of the mobile terminal to the OTG peripheral to be the lowest working voltage; when data transmission of the OTG peripheral equipment is detected, if the power supply voltage of the mobile terminal to the OTG peripheral equipment is set to be the lowest working voltage at present, the power supply voltage of the mobile terminal to the OTG peripheral equipment is set to be a normal voltage. Therefore, the power supply voltage of the USB peripheral when the USB peripheral is idle is reduced, the power consumption of the USB peripheral when the USB peripheral is idle is reduced, the battery energy of the mobile terminal is saved under the condition that the use of the OTG by a user is not influenced, and the battery endurance of the mobile terminal is improved.
Of course, it will be understood by those skilled in the art that all or part of the processes of the methods of the above embodiments may be implemented by a computer program instructing relevant hardware (such as a processor, a controller, etc.), and the program may be stored in a computer readable storage medium, and when executed, the program may include the processes of the above method embodiments. The storage medium may be a memory, a magnetic disk, an optical disk, etc.
It is to be understood that the invention is not limited to the examples described above, but that modifications and variations may be effected thereto by those of ordinary skill in the art in light of the foregoing description, and that all such modifications and variations are intended to be within the scope of the invention as defined by the appended claims.
Claims (8)
1. An OTG peripheral control method of a mobile terminal is characterized by comprising the following steps:
a, when a mobile terminal is connected with an OTG peripheral, acquiring the lowest working voltage of the connected OTG peripheral;
b, when detecting that the continuous no-data transmission of the OTG peripheral exceeds a set time threshold, setting the power supply voltage of the mobile terminal to the OTG peripheral to be the lowest working voltage;
when data transmission of the OTG peripheral is detected, if the power supply voltage of the mobile terminal to the OTG peripheral is set to be the lowest working voltage at present, the power supply voltage of the mobile terminal to the OTG peripheral is reset to be a normal voltage;
the step A comprises the following steps:
a1, when detecting that the mobile terminal is connected with an OTG peripheral, prompting a user to continuously use the OTG peripheral in a set time period;
a2, the mobile terminal acquires data transmission of the OTG peripheral, and the mobile terminal reduces the power supply voltage of the OTG peripheral by a set voltage step value at set time intervals;
a3, when detecting that the OTG peripheral does not have data transmission, acquiring the power supply voltage of the OTG peripheral which is currently set; and adding the voltage step to the power supply voltage to obtain the lowest working voltage of the connected OTG peripheral equipment.
2. The OTG peripheral control method according to claim 1, wherein the set time period is 5 seconds.
3. The OTG peripheral control method of a mobile terminal according to claim 1,
the set time interval was 0.2 seconds.
4. The OTG peripheral control method of claim 1, wherein the voltage step value is 0.1 v.
5. The OTG peripheral control method of a mobile terminal according to claim 1, wherein the step B further comprises: whether the OTG peripheral equipment is used for data transmission can be judged by detecting whether the DP or DN pin on the USB line has level change, when the level of the DP or DN pin on the USB line changes, data transmission is indicated, and when the level of the DP or DN pin on the USB line does not change, no data transmission is indicated.
6. The OTG peripheral control method of claim 1, wherein the time threshold in step B is 20 seconds.
7. The OTG peripheral control method of a mobile terminal according to claim 1, wherein the step C further comprises: the USB interface circuit can judge whether the level of the DP pin or the DN pin on the USB line changes or not by detecting whether the level of the DP pin or the DN pin on the USB line changes or not, and indicates that data transmission exists when the level of the DP pin or the DN pin on the USB line changes or does not exist.
8. The OTG peripheral control system of the mobile terminal is characterized by comprising:
the acquisition module is used for controlling the acquisition of the lowest working voltage of the connected OTG peripheral when the mobile terminal is connected with the OTG peripheral;
the first data transmission control module is used for setting the power supply voltage of the mobile terminal to the OTG peripheral equipment to be the lowest working voltage when detecting that the continuous no-data transmission of the OTG peripheral equipment exceeds a set time threshold;
the second data transmission control module is used for resetting the power supply voltage of the mobile terminal to the OTG peripheral to be a normal voltage if the power supply voltage of the mobile terminal to the OTG peripheral is set to be the lowest working voltage when the data transmission of the OTG peripheral is detected;
the acquisition module includes:
the detection and prompt unit is used for prompting a user to continuously use the OTG peripheral in a set time period when the mobile terminal is detected to be connected with the OTG peripheral;
the acquisition unit is used for controlling the mobile terminal to acquire data transmission of the OTG peripheral equipment, and the mobile terminal reduces the power supply voltage of the OTG peripheral equipment at set voltage step values at set time intervals;
the voltage calculation unit is used for acquiring the currently set power supply voltage of the OTG peripheral when detecting that the OTG peripheral has no data transmission; and adding the voltage step to the power supply voltage to obtain the lowest working voltage of the connected OTG peripheral equipment.
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| CN107391157B (en) * | 2017-07-31 | 2020-07-31 | 北京小米移动软件有限公司 | Mobile terminal and method for identifying mobile storage device |
| CN109407814A (en) * | 2017-08-14 | 2019-03-01 | 成都鼎桥通信技术有限公司 | The USB peripheral control method and device of mobile terminal |
| CN108319354A (en) * | 2018-01-05 | 2018-07-24 | 青岛海信移动通信技术股份有限公司 | To connect the method and device of USB camera power supply on mobile terminals |
| CN109445566B (en) * | 2018-12-15 | 2021-02-26 | 惠州Tcl移动通信有限公司 | OTG (on-the-go) power-saving processing method and system, storage medium and mobile terminal |
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