CN101770212A - Multimedia playing terminal and playing control method thereof - Google Patents
Multimedia playing terminal and playing control method thereof Download PDFInfo
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- CN101770212A CN101770212A CN200810241758A CN200810241758A CN101770212A CN 101770212 A CN101770212 A CN 101770212A CN 200810241758 A CN200810241758 A CN 200810241758A CN 200810241758 A CN200810241758 A CN 200810241758A CN 101770212 A CN101770212 A CN 101770212A
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- 238000001514 detection method Methods 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 description 3
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Abstract
The invention is suitable for the field of multimedia equipment and provides a multimedia playing terminal and a playing control method thereof. The terminal comprises a CPU and a temperature sensor which is connected with the CPU for detecting the temperature of the terminal when the multimedia playing terminal is played, wherein the CPU compares a temperature parameter obtained by the temperature sensor with a preset temperature threshold, and when the temperature parameter reaches to the temperature threshold, the CPU controls to stop the playing control and enter into a standby state. The temperature sensor is integrated in the multimedia playing terminal, and when the CPU of the multimedia playing terminal finds out that the temperature thereof detected by the temperature sensor reaches to the threshold, the playing control is stopped and enters into the standby state, so as to avoid the shell deformation caused by the overheat multimedia playing terminal.
Description
Technical field
The invention belongs to the multimedia equipment field, relate in particular to a kind of multimedia play terminal and control method for playing back thereof.
Background technology
Present multimedia play terminal has the trend of miniaturization, particularly portable multimedia broadcasting such as MP3, MP4 is put terminal, battery capacity is also increasing simultaneously, and consequently long-time broadcast can make terminal become hot, for the terminal easy deformation that adopts the engineering plastics shell.
Summary of the invention
The purpose of the embodiment of the invention is to provide a kind of multimedia play terminal and control method for playing back thereof, is intended to solve the problem of the engineering plastics shell easy deformation of existing multimedia play terminal.
The embodiment of the invention is achieved in that a kind of multimedia play terminal, comprises a CPU, and described multimedia play terminal also comprises:
One temperature sensor is connected with described CPU, is used to detect the temperature of surveying terminal when multimedia play terminal is play;
The temperature parameter that described CPU obtains the detection of described temperature sensor compares with default temperature threshold, and when the temperature parameter that obtains when detection reached described temperature threshold, described CPU control control stopped to play, and enters holding state.
The embodiment of the invention also provides a kind of control method for playing back of multimedia play terminal, may further comprise the steps:
The temperature parameter of reading temperature sensor;
Judge whether described temperature parameter reaches default temperature threshold;
If described temperature parameter reaches default temperature threshold, then control stops to play, and enters holding state.
The embodiment of the invention is by an integrated temperature sensor in multimedia play terminal, when the temperature that detects terminal self by temperature sensor as the CPU of multimedia play terminal reaches threshold value, controls playing stops to enter holding state, thereby reaches the purpose of avoiding multimedia play terminal to cause casing deformation owing to excessive heating.
Description of drawings
Fig. 1 is the structure principle chart of the multimedia play terminal that provides of the embodiment of the invention;
Fig. 2 is the realization flow figure of the control method for playing back of multimedia play terminal shown in Figure 1.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
In the embodiment of the invention, an integrated temperature sensor in multimedia play terminal, when the temperature that detects terminal self by temperature sensor as the CPU of multimedia play terminal reached threshold value, controls playing stopped to enter holding state.
Fig. 1 shows the structural principle of the multimedia play terminal that the embodiment of the invention provides, and for convenience of description, only shows part related to the present invention.
With reference to Fig. 1, multimedia play terminal comprises CPU 1 and temperature sensor 2, when multimedia play terminal is worked, temperature sensor 2 is surveyed the temperature of terminal when multimedia play terminal is play, and temperature parameter is sent to connected CPU 1, be provided with temperature threshold among the CPU 1, biography is handled the back from the temperature parameter of temperature sensor 2 to be compared with the temperature threshold of presetting, when passing when the temperature parameter of temperature sensor 2 reaches temperature threshold, CPU 1 control stops to play, enter holding state, to reach the purpose of avoiding multimedia play terminal to cause casing deformation owing to excessive heating.
Further, CPU 1 and temperature sensor 2 pass through I
2The C bus connects, as shown in Figure 1, both serial clock buses (Serial Clock Line, SCL) between and serial data line (Serial Data Line adds and draws resistance R 1 to be connected with R2 that wherein temperature sensor can adopt MC74 type 8 bit serial interface integrated digital temperature sensors between SDA) respectively, between temperature-measuring range+25 ℃～+ 85 ℃, measuring accuracy is ± 2 ℃, and between 0 ℃～+ 125 ℃, measuring accuracy is ± 3 ℃.
Further, in order to guarantee measuring accuracy, CPU 1 can be set ask average the temperature parameter of temperature sensor 2 repeatedly being gathered before relatively with threshold temperature, such as 10 times, if mean value is greater than temperature threshold, then control stops to play, and enters holding state.
Fig. 2 is the realization flow of the control method for playing back of multimedia play terminal shown in Figure 1, and details are as follows:
In step S201, the number of times that reads temperature parameter from temperature sensor is set.
For guaranteeing the precision of the temperature parameter that reads, be provided with gather of temperature parameter of temperature sensor asked average more.
In step S202, the temperature parameter of reading temperature sensor.
In step S203, judge whether the reading times that reaches default, if, entering step S204, otherwise return step S202, the temperature parameter of reading temperature sensor again is until reaching default reading times.
In step S204, ask the mean value of all temperature parameters that read.
In step S205, judge whether the mean value of the temperature parameter of trying to achieve during previous step suddenly reaches default temperature threshold, if enter step S206, otherwise finish.
In step S206, control stops to play, and enters holding state.
Should be appreciated that step S201, S203 in the above-mentioned flow process, S204 are optional, can whether these three steps of needs be set flexibly according to actual conditions when specifically implementing.Further, said method can instruct relevant hardware to finish by program, and described program can be stored among the CPU of multimedia play terminal.
The embodiment of the invention is by an integrated temperature sensor in multimedia play terminal, when the temperature that detects terminal self by temperature sensor as the CPU of multimedia play terminal reaches threshold value, controls playing stops to enter holding state, thereby reaches the purpose of avoiding multimedia play terminal to cause casing deformation owing to excessive heating; And for guaranteeing measuring accuracy, the temperature parameter that reading temperature sensor can also be set is repeatedly asked on average, and the mean value and the temperature threshold of being tried to achieve compared, and need to judge whether control stop to enter holding state again.
The above only is preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of being done within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. a multimedia play terminal comprises a CPU, it is characterized in that, described multimedia play terminal also comprises:
One temperature sensor is connected with described CPU, is used to detect the temperature of surveying terminal when multimedia play terminal is play;
The temperature parameter that described CPU obtains the detection of described temperature sensor compares with default temperature threshold, and when the temperature parameter that obtains when detection reached described temperature threshold, described CPU control control stopped to play, and enters holding state.
2. multimedia play terminal as claimed in claim 1 is characterized in that, described CPU and described temperature sensor pass through I
2The C bus connects.
3. multimedia play terminal as claimed in claim 1 is characterized in that, described temperature sensor is MC74 type 8 bit serial interface integrated digital temperature sensors.
4. multimedia play terminal as claimed in claim 1, it is characterized in that, described CPU obtains a plurality of temperature parameters with the detection of described temperature sensor and asks average, and the temperature parameter mean value of trying to achieve and default temperature threshold compared, when described temperature parameter mean value reaches described temperature threshold, described CPU control control stops to play, and enters holding state.
5. the control method for playing back of a multimedia play terminal is characterized in that, said method comprising the steps of:
The temperature parameter of reading temperature sensor;
Judge whether described temperature parameter reaches default temperature threshold;
If described temperature parameter reaches default temperature threshold, then control stops to play, and enters holding state.
6. method as claimed in claim 5 is characterized in that, before the step of the temperature parameter of described reading temperature sensor, described method further comprises the steps:
The number of times of temperature parameter is read in setting from temperature sensor;
Before judging whether described temperature parameter reaches the step of default temperature threshold, described method further comprises:
Judge whether the reading times that reaches default,, otherwise continue the temperature parameter of reading temperature sensor if then ask the mean value of all temperature parameters that read;
The described step of judging whether described temperature parameter reaches default temperature threshold is specially:
The temperature threshold whether mean value of the temperature parameter that judgement is tried to achieve is preset greatly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810241758A CN101770212A (en) | 2008-12-30 | 2008-12-30 | Multimedia playing terminal and playing control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810241758A CN101770212A (en) | 2008-12-30 | 2008-12-30 | Multimedia playing terminal and playing control method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101770212A true CN101770212A (en) | 2010-07-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200810241758A Pending CN101770212A (en) | 2008-12-30 | 2008-12-30 | Multimedia playing terminal and playing control method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102761666A (en) * | 2012-06-29 | 2012-10-31 | 惠州Tcl移动通信有限公司 | Cell phone and temperature control method of cell phone |
| CN104683214A (en) * | 2013-11-28 | 2015-06-03 | 上海斐讯数据通信技术有限公司 | Information publishing method and system |
| CN104865895A (en) * | 2014-02-24 | 2015-08-26 | 发那科株式会社 | Controller Having Cpu Abnormality Detection Function |
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| CN1321268A (en) * | 1999-09-10 | 2001-11-07 | 索尼电脑娱乐公司 | Electronic device with temp. detector |
| CN1833201A (en) * | 2003-06-02 | 2006-09-13 | 富可视公司 | Projection device having blower and/or lamp with feedback control |
| CN101114251A (en) * | 2006-07-28 | 2008-01-30 | 鸿富锦精密工业（深圳）有限公司 | Computer system status monitoring circuit |
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2008
- 2008-12-30 CN CN200810241758A patent/CN101770212A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1321268A (en) * | 1999-09-10 | 2001-11-07 | 索尼电脑娱乐公司 | Electronic device with temp. detector |
| CN1833201A (en) * | 2003-06-02 | 2006-09-13 | 富可视公司 | Projection device having blower and/or lamp with feedback control |
| CN101114251A (en) * | 2006-07-28 | 2008-01-30 | 鸿富锦精密工业（深圳）有限公司 | Computer system status monitoring circuit |
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| 李敏等: "数字式温湿度传感器SHT15及其应用", 《单片机与嵌入式系统应用》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102761666A (en) * | 2012-06-29 | 2012-10-31 | 惠州Tcl移动通信有限公司 | Cell phone and temperature control method of cell phone |
| CN102761666B (en) * | 2012-06-29 | 2015-07-15 | 惠州Tcl移动通信有限公司 | Cell phone and temperature control method of cell phone |
| CN104683214A (en) * | 2013-11-28 | 2015-06-03 | 上海斐讯数据通信技术有限公司 | Information publishing method and system |
| CN104865895A (en) * | 2014-02-24 | 2015-08-26 | 发那科株式会社 | Controller Having Cpu Abnormality Detection Function |
| CN104865895B (en) * | 2014-02-24 | 2017-08-29 | 发那科株式会社 | Possesses the control device of CPU abnormal detection function |
| US10126715B2 (en) | 2014-02-24 | 2018-11-13 | Fanuc Corporation | Controller having CPU abnormality detection function |
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Application publication date: 20100707 |