CN107678986B - USB3.0 transmission rate setting method, mobile terminal and storage medium - Google Patents
USB3.0 transmission rate setting method, mobile terminal and storage medium Download PDFInfo
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Abstract
The invention discloses a USB3.0 transmission rate setting method, a mobile terminal and a storage medium, wherein when the USB3.0 is started, a timer with variable time-out is set and used for adjusting the detection frequency of the current working temperature of a central processing unit and a temperature sensor; the temperature sensor judges whether the current working temperatures of the central processing unit and the temperature sensor exceed a preset normal working temperature range, and if so, an interrupt signal is fed back to the central processing unit; when the CPU receives the interrupt signal, the CPU controls the transmission rate of the USB3.0 to reduce by a step value. According to the invention, the USB3.0 transmission rate and the temperature change amplitude are set to adjust the detection frequency by detecting the temperature abnormality, so that not only can the heat accumulation in the starting process of the USB3.0 be prevented to cause the reduction of the transmission efficiency, but also the power consumption of the temperature detection equipment can be reduced, and the use by a user is facilitated.
Description
Technical Field
The invention relates to the technical field of USB of a mobile terminal, in particular to a USB3.0 transmission rate setting method, the mobile terminal and a storage medium.
Background
At present, a mobile terminal uses a USB port to perform data transmission with devices such as a computer and a notebook, and in order to make the transmission speed faster, a USB protocol has been upgraded to 3.0, and a USB3.0 is initiated by intel and other companies, considering that the maximum transmission speed of a USB2.0 which is commonly used is 60MB/s, and the maximum transmission speed of the USB3.0 can reach 500MB/s, the USB3.0 is more harsh on the hardware condition, so as to ensure that signals are not distorted when transmitted at such a high speed.
On the other hand, when data is transmitted at a high speed, the amount of data processed by the processor per unit time is multiplied, so that the operating speed of the processor is increased, and the processor is easy to generate heat, and a plurality of chips in the mobile terminal are in a narrow and closed space, so that heat generated by heat generation of each chip is easy to accumulate and is conducted to the USB controller and the lead wire, a signal of the USB3.0 is distorted, and retransmission is caused by a transmitted data error, so that the transmission efficiency is reduced.
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 USB3.0 transmission rate setting method, a mobile terminal and a storage medium, aiming at preventing the problem of reduced transmission efficiency caused by heat accumulation in the USB3.0 starting process by setting the USB3.0 transmission rate and adjusting the detection frequency according to the temperature variation amplitude through detecting temperature abnormality, and reducing the power consumption of the temperature detection device, thereby facilitating the use of the user.
The technical scheme adopted by the invention for solving the technical problem is as follows:
a USB3.0 transmission rate setting method, wherein the USB3.0 transmission rate setting method comprises:
when the USB3.0 is started, a timer with variable time-out is set and used for adjusting the detection frequency of the current working temperature of the central processing unit and the temperature sensor;
the temperature sensor judges whether the current working temperatures of the central processing unit and the temperature sensor exceed a preset normal working temperature range, and if so, an interrupt signal is fed back to the central processing unit;
when the CPU receives the interrupt signal, the CPU controls the transmission rate of the USB3.0 to reduce by a step value.
The USB3.0 transmission rate setting method, wherein when the USB3.0 is enabled, controlling a timer with a variable timeout period to adjust the detection frequency of the current operating temperature of the central processing unit and the temperature sensor further includes:
a temperature threshold and a time threshold are preset.
The USB3.0 transmission rate setting method is characterized in that the timer is provided with a first overtime gear and a second overtime gear, and the first overtime gear is 5 seconds; the second timeout step is 60 seconds.
The USB3.0 transmission rate setting method, wherein when the USB3.0 is enabled, setting a timer with a variable timeout period to adjust the detection frequency of the current operating temperature of the central processing unit and the temperature sensor includes:
when the difference between the current working temperature of the central processing unit or the temperature sensor and the previously detected working temperature is greater than the temperature threshold, controlling the timer to be a first overtime gear, and acquiring and marking the current system time;
when the difference between the current working temperature of the central processing unit or the temperature sensor and the previously detected working temperature is smaller than the temperature threshold, comparing the current system time with the previously stored system time, and when the time difference is larger than the time threshold, controlling the timer to be a second overtime gear, and acquiring and marking the current system time;
and if the time difference is smaller than the preset time threshold, controlling the timer to be a first overtime gear, acquiring the current system time and marking.
The USB3.0 transmission rate setting method includes that the temperature sensor determines whether the current operating temperatures of the central processing unit and the temperature sensor exceed a preset normal operating temperature range, and if yes, feeding back an interrupt signal to the central processing unit includes:
the temperature sensor detects the current working temperature of the central processing unit and the temperature sensor;
judging whether the current working temperature of the central processing unit exceeds a preset normal working temperature range or not, and if so, feeding back a first interrupt signal to the central processing unit;
if not, judging whether the current working temperature of the temperature sensor exceeds the preset normal working temperature range, and if so, feeding back a second interrupt signal to the central processing unit.
The USB3.0 transmission rate setting method, wherein the step of controlling the transmission rate of the USB3.0 to decrease by a step value when the central processing unit receives the interrupt signal includes:
and when the central processing unit receives the first interrupt signal or the second interrupt signal, controlling the transmission rate of the USB3.0 to reduce by a step value.
The USB3.0 transmission rate setting method, wherein the step of controlling the transmission rate of the USB3.0 to decrease by a step value after the central processing unit receives the interrupt signal further comprises: if the central processing unit receives the interrupt signal for many times, the transmission rate of the USB3.0 is reduced by the same stepping value for many times until the temperature sensor or the central storage is in the temperature range of normal operation.
The USB3.0 transmission rate setting method is characterized in that when the central processing unit does not receive the interrupt signal, the transmission rate of the USB3.0 is controlled to increase by a step value until the temperature sensor or the central storage is restored to be in a normal working temperature range.
A mobile terminal comprises a temperature sensor, a processor and a memory connected with the processor, wherein the memory stores a program for setting USB3.0 transmission rate, and the program for setting USB3.0 transmission rate is executed by the processor to realize the method for setting USB3.0 transmission rate.
A storage medium storing a program for USB3.0 transfer rate setting, the USB3.0 transfer rate setting program being executed by a processor for implementing the method for USB3.0 transfer rate setting.
The invention discloses a USB3.0 transmission rate setting method, a mobile terminal and a storage medium, wherein when the USB3.0 is started, a timer with variable time-out is set and used for adjusting the detection frequency of the current working temperature of a central processing unit and a temperature sensor; the temperature sensor judges whether the current working temperatures of the central processing unit and the temperature sensor exceed a preset normal working temperature range, and if so, an interrupt signal is fed back to the central processing unit; when the CPU receives the interrupt signal, the CPU controls the transmission rate of the USB3.0 to reduce by a step value. According to the invention, the USB3.0 transmission rate and the temperature change amplitude are set to adjust the detection frequency by detecting the temperature abnormality, so that not only can the heat accumulation in the starting process of the USB3.0 be prevented to cause the reduction of the transmission efficiency, but also the power consumption of the temperature detection equipment can be reduced, and the use by a user is facilitated.
Drawings
FIG. 1 is a flow chart of a USB3.0 transmission rate setting method according to a first preferred embodiment of the present invention.
Fig. 2 is a functional block diagram of a preferred embodiment 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.
Example one
Referring to fig. 1, fig. 1 is a flowchart illustrating a USB3.0 transmission rate setting method according to a first preferred embodiment of the present invention. As shown in fig. 1, a USB3.0 transmission rate setting method includes the following steps:
and S100, when the USB3.0 is started, setting a timer with variable time-out time for adjusting the detection frequency of the current working temperature of the central processing unit and the temperature sensor.
In the embodiment of the present invention, the timeout time of the timer is set to two positions, namely, a first timeout position (in this embodiment, 5 seconds) and a second timeout position (in this embodiment, 60 seconds), and when the USB3.0 is started, the mobile terminal starts to default to the first timeout position.
When the timer is overtime, the working temperature of the CPU is synchronously detected by the temperature sensor and is marked as TnowCenter (C)And the operating temperature of the temperature sensor itself, denoted TnowFeeling of. When the difference between the current working temperature of the central processing unit or the temperature sensor and the previously detected working temperature is greater than a preset temperature threshold (2 degrees in the embodiment), the timer is kept for 5 seconds to detect the temperature once, the current system time is obtained and stored, and the corresponding mark is tnowCenter (C)And tnowFeeling of；
When the difference between the current working temperature of the central processing unit or the temperature sensor and the previously detected working temperature is less than 2 degrees, comparing the current system time with the previously stored system time, and when the time difference is greater than a preset time threshold (60 seconds in the embodiment), controlling the timer to detect the temperature once for 60 seconds, and acquiring and storing the current system time; and if the time difference is less than 60 seconds, still keeping the timer for 5 seconds to detect the temperature once, and acquiring and storing the current system time.
Specifically, the control method of the detection frequency with variable timeout of the timer in step S100 is described in detail as follows:
s101 detecting the current of the central processing unitOperating temperature, denoted TnowCenter (C)Executing step S102;
s102, obtaining the current system time marked as tnowCenter (C)；
S103, judging TnowCenter (C)And TpreCenter (C)(this is the previously saved temperature) whether the absolute value of the difference is less than 2 degrees, if so, executing step S104, otherwise, executing step S107;
s104 judging tnowCenter (C)And tpreCenter (C)(this is the previously saved system time) whether the difference exceeds 60 seconds, if so, step S105 is executed, otherwise, step S108 is executed;
s105, setting the timeout time of the timer to be 60 seconds, and executing the step S106;
s106, replacing the temperature record, and storing the current temperature: tpreCenter (C) = TnowCenter (C)；
S107, replacing the system time record, and saving the current system time: tpreCenter (C) = tnowCenter (C)Step S108 is executed;
s108 sets the timer timeout period to 5 seconds, and executes step S106.
It should be noted that the temperature sensor also adopts the above control method of the detection frequency with variable timeout of the timer, which is not described herein again.
Further, when the USB3.0 is normally used, the temperature of the environment does not suddenly rise and fall, and therefore according to this characteristic, when the detected temperature variation range is within a range, it is considered that the temperature is kept stable, the temperature detection frequency is decreased; but the temperature detection frequency is increased when the detected temperature variation amplitude exceeds a range. Therefore, the power consumption of the temperature detection equipment is reduced, and meanwhile, the temperature abnormity is not missed in temperature detection.
And step S200, judging whether the current working temperatures of the central processing unit and the temperature sensor exceed a preset normal working temperature range by the temperature sensor, and feeding back an interrupt signal to the central processing unit if the current working temperatures of the central processing unit and the temperature sensor exceed the preset normal working temperature range.
It should be noted that the temperature range in which the central processing unit and the temperature sensor normally operate is set by a mobile terminal manufacturer during production according to the performance of the central processing unit and the temperature sensor and the ambient temperature of the mobile terminal to the ground, for example, in the embodiment of the present invention, the temperature range in which the central processing unit and the temperature sensor normally operate is-20 to 60 ℃.
In the embodiment of the invention, the temperature sensor is used for detecting the temperature and feeding back the abnormal temperature, and not only can detect the working temperature of the central processing unit, but also can detect the working temperature of the central processing unit.
The temperature sensor judges whether the current working temperature of the central processing unit exceeds a preset normal working temperature range or not, and if so, a first interrupt signal is fed back to the central processing unit; if not, judging whether the current working temperature of the temperature sensor exceeds the preset normal working temperature range, and if so, feeding back a second interrupt signal to the central processing unit.
Specifically, step S200 is described in detail as follows:
s201, when the mobile terminal is started, the timer defaults to timeout time of 5 seconds;
s202, judging whether the timer is overtime, if so, executing the step S203, otherwise, continuing to wait for overtime by the timer;
s203, detecting the temperature of the central processing unit, and specifically executing the step S100;
s204, judging whether the temperature exceeds the normal working temperature range (-20 to 60 ℃) of the central processing unit, if so, executing a step S207, otherwise, executing a step S205;
s205, detecting the temperature of the temperature sensor;
s206, judging whether the temperature exceeds the normal working temperature range (-20 to 60 ℃) of the temperature sensor, if so, executing the step S208, otherwise, executing the step S202;
s207 feeds back a first interrupt signal to the central processing unit;
s208 feeds back the second interrupt signal to the central processing unit.
It should be further noted that when the USB3.0 is enabled, the current flows from the USB3.0 enabled device to the temperature sensor of the mobile terminal through the USB3.0 enabled line and then to the central processing unit, and the most probable heat generation is the temperature sensor and the central processing unit, while other devices on the mobile terminal are generally unrelated to the USB3.0 enabled device, so that only the temperature of the temperature sensor and the temperature of the central processing unit need to be detected.
Step S300, when the CPU receives the interrupt signal, the CPU controls the transmission rate of the USB3.0 to reduce by a step value.
In the embodiment of the present invention, when the central processing unit receives the first interrupt signal or the second interrupt signal, the transmission rate of the USB3.0 is reduced by a step value. The step value is also called as "step", and is an important parameter of the CPU, namely, the hierarchical identification product data conversion specification. The "step" numbers are used to identify design or manufacturing version data for a series of CPUs, and the step versions may change as the series of CPUs improve in manufacturing processes, solve BUGs, or increase in features, i.e., the step numbers are used to identify these different "revisions" of the CPUs. More or less different CPUs may have differences in the same series of different steps, for example, in stability, core voltage, power consumption, heat generation, over-clocking performance, and even supported instruction sets. The step numbers are then typically represented in an alphanumeric manner, such as a0, B1, C2, etc., and the step values may be automatically incremented by 10 or decremented by 10 depending on the starting value.
Preferably, after the central processing unit receives the interrupt signal and controls the transmission rate of USB3.0 to decrease by a step value, the method further includes: if the central processing unit receives the interrupt signal for multiple times, the same stepping value is subtracted for multiple times on the basis of the USB3.0 transmission rate, but if the same stepping value is subtracted for multiple times, so that the USB3.0 transmission rate is lower than the normal USB3.0 transmission rate range, the normal USB3.0 transmission rate is used, the stepping value is not continuously subtracted, and finally the temperature of the temperature sensor or the central storage is in the normal range.
Similarly, if the cpu does not receive the interrupt signal within a certain time (e.g., 100 seconds), the cpu adds the same step value to the current USB3.0 transmission rate until the temperature of the temperature sensor or the central sensor is restored to the normal range.
Of course, it will be understood by those skilled in the art that all or part of the processes of the method of the above embodiments may be implemented by instructing relevant hardware (such as a processor, a temperature sensor, etc.) through a USB3.0 transmission rate setting program, 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.
Example two
As shown in fig. 2, the mobile terminal of the embodiment of the present invention may be a mobile phone (or a computer), where the mobile terminal of the embodiment of the present invention includes a processor 10, a temperature sensor 30 (not shown in the figure), and a memory 20 connected to the processor 10;
the memory 20 stores a USB3.0 transfer rate setting program, and the USB3.0 transfer rate setting program, when executed by the processor 10, implements the USB3.0 transfer rate setting method, as described above.
The processor 10, in some embodiments, may be a Central Processing Unit (CPU), microprocessor or other data Processing chip, for running program codes stored in the memory 20 or Processing data, such as a program for performing USB3.0 transmission rate setting.
The temperature sensor 30 is a temperature detection device, which can sense the temperature of the measured object, and can compare the detected temperature information with the set threshold information for signal feedback, so as to meet the requirements of information transmission, processing, storage, display, recording, control, etc. The temperature sensor has wide application, and is widely applied to the fields of smart phones, computer color displays and the like. In some embodiments, it may be a semiconductor thermocouple temperature sensor, PN junction temperature sensor, integrated temperature sensor, etc. in a chip.
EXAMPLE III
A storage medium storing a USB3.0 transmission rate setting program, the USB3.0 transmission rate setting program implementing the USB3.0 transmission rate setting method when executed by a processor 10; as described above.
It should be noted that the implementation of the functions of the present invention depends on the mobile terminal that can use the USB3.0 related functions after installing the USB3.0 related hardware devices.
In summary, the present invention discloses a USB3.0 transmission rate setting method, a mobile terminal and a storage medium, wherein when the USB3.0 is enabled, a timer with a variable timeout period is controlled to adjust the detection frequency of the current working temperature of the central processing unit and the temperature sensor; the temperature sensor judges whether the current working temperatures of the central processing unit and the temperature sensor exceed a preset normal working temperature range, and if so, an interrupt signal is fed back to the central processing unit; when the CPU receives the interrupt signal, the CPU controls the transmission rate of the USB3.0 to reduce by a step value. According to the invention, the USB3.0 transmission rate and the temperature change amplitude are set to adjust the detection frequency by detecting the temperature abnormality, so that not only can the heat accumulation in the starting process of the USB3.0 be prevented to cause the reduction of the transmission efficiency, but also the power consumption of the temperature detection equipment can be reduced, and the use by a user is facilitated.
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 (6)
1. A USB3.0 transmission rate setting method, wherein the USB3.0 transmission rate setting method comprises:
presetting a temperature threshold and a time threshold;
when the USB3.0 is started, a timer with variable time-out is set and used for adjusting the detection frequency of the current working temperature of the central processing unit and the temperature sensor;
the temperature sensor judges whether the current working temperatures of the central processing unit and the temperature sensor exceed a preset normal working temperature range, and if so, an interrupt signal is fed back to the central processing unit;
when the CPU receives the interrupt signal, the transmission rate of the USB3.0 is controlled to be reduced by a step value;
the timer is provided with a first overtime gear and a second overtime gear, and the first overtime gear is 5 seconds; the second timeout step is 60 seconds;
when the USB3.0 is started, a timer with variable time-out is set, and the detection frequency for adjusting the current working temperature of the central processing unit and the temperature sensor comprises the following steps: when the difference between the current working temperature of the central processing unit or the temperature sensor and the previously detected working temperature is greater than the temperature threshold, controlling the timer to be a first overtime gear, and acquiring and marking the current system time; when the difference between the current working temperature of the central processing unit or the temperature sensor and the previously detected working temperature is smaller than the temperature threshold, comparing the current system time with the previously stored system time, and when the time difference is larger than the time threshold, controlling the timer to be a second overtime gear, and acquiring and marking the current system time; if the time difference is smaller than the time threshold, controlling a timer to be a first overtime gear, acquiring the current system time and marking;
and the previously detected working temperature is the last detected working temperature, and the previously stored system time is the last stored system time.
2. The method as claimed in claim 1, wherein the step of the temperature sensor determining whether the current operating temperatures of the cpu and the temperature sensor exceed a preset normal operating temperature range, and if so, the step of feeding back an interrupt signal to the cpu includes:
the temperature sensor detects the current working temperature of the central processing unit and the temperature sensor;
judging whether the current working temperature of the central processing unit exceeds a preset normal working temperature range or not, and if so, feeding back a first interrupt signal to the central processing unit;
if not, judging whether the current working temperature of the temperature sensor exceeds the preset normal working temperature range, and if so, feeding back a second interrupt signal to the central processing unit.
3. The USB3.0 transmission rate setting method of claim 2, wherein the controlling the transmission rate of USB3.0 to decrease by a step value when the cpu receives the interrupt signal comprises:
and when the central processing unit receives the first interrupt signal or the second interrupt signal, controlling the transmission rate of the USB3.0 to reduce by a step value.
4. The method as claimed in claim 3, wherein the step of controlling the transmission rate of USB3.0 to decrease by a step value after the cpu receives the interrupt signal further comprises: if the central processing unit receives the interrupt signal for many times, the transmission rate of the USB3.0 is reduced by the same stepping value for many times until the temperature of the temperature sensor or the central processing unit is within the temperature range of normal operation.
5. A mobile terminal comprising a temperature sensor, a processor, and a memory coupled to the processor, the memory storing a program for USB3.0 transfer rate setting, the program for USB3.0 transfer rate setting being executed by the processor to implement the method for USB3.0 transfer rate setting of any of claims 1-4.
6. A storage medium storing a program for USB3.0 transfer rate setting, the USB3.0 transfer rate setting program being executable by a processor to implement a method for USB3.0 transfer rate setting according to any one of claims 1 to 4.
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| CN101998448A (en) * | 2009-08-11 | 2011-03-30 | 华为终端有限公司 | Flow control method, device and terminal |
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| CN1328687A (en) * | 1998-08-18 | 2001-12-26 | 英特尔公司 | Method and apparatus to control temp of component |
| US6601168B1 (en) * | 1999-11-19 | 2003-07-29 | Hewlett-Packard Development Company, L.P. | Computer fan speed system to reduce audible perceptibility of fan speed changes |
| CN101571839A (en) * | 2009-05-22 | 2009-11-04 | 中兴通讯股份有限公司 | Method and system for controlling temperature of data transmission equipment, and data transmission equipment therefor |
| CN101998448A (en) * | 2009-08-11 | 2011-03-30 | 华为终端有限公司 | Flow control method, device and terminal |
| CN104679055A (en) * | 2015-01-23 | 2015-06-03 | 小米科技有限责任公司 | Temperature sampling treatment method and device |
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