CN104243670A - Method for lowering temperature of mobile device - Google Patents
Method for lowering temperature of mobile device Download PDFInfo
- Publication number
- CN104243670A CN104243670A CN201310237092.0A CN201310237092A CN104243670A CN 104243670 A CN104243670 A CN 104243670A CN 201310237092 A CN201310237092 A CN 201310237092A CN 104243670 A CN104243670 A CN 104243670A
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- mobile device
- charging current
- rechargeable battery
- rssi
- value
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- 238000000034 method Methods 0.000 title claims abstract description 28
- 230000005855 radiation Effects 0.000 claims abstract description 15
- 230000001105 regulatory effect Effects 0.000 claims description 7
- 238000005070 sampling Methods 0.000 abstract description 2
- 238000012935 Averaging Methods 0.000 abstract 1
- 230000002349 favourable effect Effects 0.000 description 5
- 238000004891 communication Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
Classifications
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention relates to a method for lowering the temperature and reducing the radiation of a mobile phone when the mobile phone is charged and carries out a high-power radio frequency work, and a corresponding charger. An RSSI value R2, and charging current values I1 and I2 are set in a program of the mobile phone, and I1 is larger than I2. When the mobile phone is charged and carries out radio frequency work in a non-standby state, analog signals received by a mobile phone RF receiving and transmitting module are converted into IQ signals through an ADC in an analog baseband module, the needed RSSI value R1 is obtained by the analog baseband module through a series of processes of IQ power integral, sampling and averaging, then, R1 and R2 are compared by an analog baseband, the comparison result is provided for a digital baseband module, and the charging current value of a power management module is set by the digital baseband module according to the result, wherein when R1 is larger than R2, the charging current is set as I1, and when R1 is smaller than or equal to R2, the charging current is set as I2 which is smaller than I1.
Description
Technical field
The present invention relates to a kind of method reducing mobile phone temp, minimizing radiation when mobile device, especially mobile phone carry out charging and carry out high-power RF work, the invention still further relates to the charger performing described method.
Background technology
The such as mobile device of mobile phone, flat computer and so on has become the necessity in our life, and its display screen is increasing, and function is also diversified, and this just needs the battery capacity of mobile device also increasing, and charging current also correspondingly improves; Mobile device needs, toward thin development, to cause its heat dissipation problem more and more outstanding simultaneously.And many times, user needs to use mobile device to carry out radio frequency operation, such as call, 3G online etc. when mobile device charges, at this moment the temperature of mobile device can be higher, and radiation is also larger, has negative effect to Consumer's Experience and user health.
Summary of the invention
In order to solve the problem, in first aspect, the invention provides a kind of method reducing mobile phone temp, minimizing radiation when mobile device, especially mobile phone carry out charging and carry out high-power RF work, described mobile device has rechargeable battery.According to the present invention, at first step, determine whether described rechargeable battery charges.If determine that described rechargeable battery charges, then determine whether described mobile device carries out high-power RF work at second step, wherein said high-power for higher than the RSSI value of the threshold value preset.Second step such as can be realized by the RF transceiver module of mobile device.Then, if determine that described mobile device carries out high-power RF work, then at third step, regulate the charging current of described rechargeable battery to reduce the temperature of described mobile device and to reduce radiation.
The invention has the advantages that, when charging of mobile devices, by only just regulating charging current to reduce device temperature and to reduce radiation when determining that mobile device carries out high-power RF work, effectively can protect the health of user on the one hand, because the rechargeable battery of mobile device inherently can produce larger caloric value when charging, if and mobile device performs high-power RF operation simultaneously, then not only radio-frequency radiation is larger, and be the more function of power consumption due to radio communication and larger caloric value will be produced, so now reduce the temperature of mobile device and radiation will produce sizable positive impact to Consumer's Experience and user health, on the other hand, owing to only just regulating the charging current of rechargeable battery when determining that mobile device carries out high-power RF work, the prolongation to the charging interval can be minimized, namely dropping to minimum to the prolongation of battery charge time, reduce charging current but only detecting that user just reduces charging current when performing high-power RF work because be not temperature once raising, thus reduce the additional charge time because reduction charging current causes.In addition, by reducing charging current, can not only temperature be reduced, can also radiation be reduced simultaneously, thus the negative effect effectively reducing from two aspects, even avoid the health of mobile phone to user to cause.
Specify in a favourable expansion scheme of the present invention, determine that the step whether described mobile device carries out high-power RF work comprises: received signal strength indicator (the Received Signal Strength Indicator gathered mobile device side, RSSI) value R1 is compared with RSSI threshold value R2, wherein as the RSSI value R1>RSSI threshold value R2 gathered, the charging current of described rechargeable battery is set as I1, and as the RSSI value R1≤RSSI threshold value R2 gathered, the charging current of described rechargeable battery is set as I2, wherein I1>I2.
In this application, described received signal strength indicator RSSI value refers to the RSSI value measured in mobile device side.The concrete mode obtaining described RSSI value is as follows: in 104us, carry out baseband I Q power integral to obtain the instantaneous value of RSSI, namely RSSI(is instantaneous)=sum(I^2+Q^2); Then in about 1 second, the instantaneous value of 8192 RSSI is averaged and obtains the mean value of RSSI, namely RSSI(is average)=sum(RSSI(is instantaneous))/8192, provide the ratio (RSSI instantaneous value is greater than number/8192 of a certain thresholding) that the maximum of RSSI instantaneous value in 1 second and RSSI instantaneous value are greater than a certain thresholding simultaneously.
The advantage of this expansion scheme is, the RSSI value of mobile device side can reflect whether mobile device carries out high-power RF work effectively: if namely the RSSI value of mobile device side is greater than threshold value, then show that the base station signal that mobile device receives is good, therefore mobile device will be launched with lower transmitting power; If instead and RSSI value is less than or equal to threshold value, show that mobile phone receives base station signal bad, mobile phone needs to launch with relatively high power.In addition, owing to being all equipped with the device measuring RSSI value in many mobile phones, therefore the solution of the present invention has needed less additional firmware cost.
In another favourable expansion scheme of the present invention, described RSSI threshold value R2 is set as-90dBm.At this, think that as RSSI>-90dBm Received signal strength is good, otherwise be exactly that Received signal strength is poor.
Specify in a favourable expansion scheme of the present invention, described mobile device is one of following: mobile phone, flat computer and personal digital assistant.
Specify in another favourable expansion scheme of the present invention, the rated charge stream according to described rechargeable battery sets charging current I1 and I2.
In second aspect, the invention provides a kind of charging method of mobile device, described mobile device has rechargeable battery, and described method comprises: while giving described charging of mobile devices, determine whether described mobile device carries out high-power RF work; And if described mobile device carries out high-power RF work, then regulate the charging current of described rechargeable battery to reduce the temperature of described mobile device and to reduce radiation.
In the third aspect, the invention provides a kind of for while carrying out high-power RF work at mobile device to the method for charging of mobile devices, described mobile device has rechargeable battery, and described method comprises: regulate the charging current of described rechargeable battery to reduce the temperature of described mobile device and to reduce radiation.
In fourth aspect, the invention provides a kind of charger of the rechargeable battery for mobile device, described charger has:
Charge control module, described battery charging control module is configured to receive from described mobile device when described rechargeable battery charges determine that the parameter of the radio-frequency power of described mobile device is to determine whether described radio-frequency power exceedes the radio-frequency power threshold value preset; And
Charging current adjustment module, described charging current adjustment module is configured to the charging current reducing described rechargeable battery when described RSSI value is no more than the RSSI threshold value preset.
In a favourable expansion scheme of the present invention, described charging current adjustment module comprises variable resistance, and described variable resistance is configured to the charging current regulating described rechargeable battery.
Accompanying drawing explanation
Set forth the present invention further with reference to the accompanying drawings below, accompanying drawing:
Fig. 1 shows the theory diagram of system of the present invention;
Fig. 2 shows the flow chart of method of the present invention; And
Fig. 3 shows the theory diagram of charger of the present invention.
Embodiment
Fig. 1 shows the theory diagram of the system 100 according to the temperature for reducing mobile phone of the present invention.Although should be appreciated that this system 100 is set forth for mobile phone at this, this system 100 also can be used for other mobile devices, such as possesses the flat computer and personal digital assistant PDA etc. of radio communication function.System 100 comprises: RF transceiver module 101, baseband module 102, Analog Baseband module 103, digital baseband block 104, rechargeable battery VBAT105, power management module 106 and AC adapter and USB107.
Set forth the operation principle of this system 100 below.
In the program of mobile phone, set a RSSI threshold value R2 and set charging current value I1 and I2(I1>I2).Determine whether mobile phone charges by power management module 106.When mobile phone carries out charging and its radio frequency is in non-standby operation, the ADC of analog signal in Analog Baseband module 103 that mobile phone RF transceiver module 101 receives is converted to I/Q signal, Analog Baseband module 103 is carried out a series of IQ power integral, sampling to it, is on average obtained required RSSI value R1, and then measured R1 and RSSI threshold value R2 compares to determine whether mobile phone is performing high-power RF work by Analog Baseband module 103.Result is relatively provided to digital baseband block 104, and digital baseband block 104 is according to the charging current value of this comparative result setting power management module 106: as R1>R2, charging current is set as I1; As R1≤R2, charging current is set as I2.At this, the RSSI value used is mean value.
Fig. 2 shows the flow chart of the method 200 according to the temperature for reducing mobile phone of the present invention.Although should be appreciated that method 200 is set forth for mobile phone at this, the method 200 also can be used for other mobile devices, such as possesses the flat computer and personal digital assistant PDA etc. of radio communication function.In step 202, determine whether mobile phone charges.If mobile phone does not carry out charging, the method 200 terminates, and if mobile phone is charging, then in step 204, obtain the RSSI value R1 of mobile phone side.Then, in step 206, by the RSSI value R1 of mobile phone side compared with the RSSI threshold value R2 preset.If R1>R2, then in step 208, the charging current of the rechargeable battery of mobile phone is set as normal current I1.If R1≤R2, then in step 210, the charging current of mobile phone is set as the value I2(I1>I2 less than I1).In the present embodiment, R2 is set as-90dBm, and the nominal charging current of mobile phone is 1000mA.If R1>-90dBm, then think that base station signal is better, mobile phone will be launched with small-power, now charging current will be set as normal value 1000mA.If R1≤-90dBm, then think that base station signal is poor, mobile phone will be launched with high-power, now charging current will be set as the half of nominal charging current, i.e. 500mA, with significantly reduce mobile phone charge and carry out high-power RF work time temperature and radiation.The method can be carried out repeatedly with fixed time interval, until user stops using radio-frequency enabled.
Choosing of charging current I1 and I2 can be carried out according to the nominal charging current of mobile phone.Such as, I1 can equal the nominal charging current of mobile phone, and I2 can be less than mobile phone nominal charging current, be such as 50%, 60%, 80% etc. of nominal charging current.
Fig. 3 shows the block diagram of the charger 300 according to the rechargeable battery 312 for mobile phone 308 of the present invention.Although should be appreciated that charger 300 is set forth for mobile phone at this, this charger 300 also can be used for other mobile devices, such as possesses the flat computer and personal digital assistant PDA etc. of radio communication function.Charger 300 comprises: charging current adjustment module 302, charge control module 304 and AC adapter 306.
Set forth the operation principle of charger 300 below.
When by sensing charging current, charge control module 304 such as determines that battery 105 is charged by power supply 310, charge control module 304 sends the request of the RSSI value R1 gathered for mobile phone side to mobile phone 308.This request such as can be sent by the connecting line between mobile phone and charger, such as USB charging wire.
After receiving RSSI value R1, by its comparison circuit, charge control module 304 determines whether described RSSI value R1 is greater than the RSSI threshold value R2 preset.This RSSI value R1 such as can be received by the connecting line between mobile phone and charger.
If the RSSI value R1>RSSI threshold value R2 gathered, then charge control module 304 sends signal S1 to charging current adjustment module 302, to indicate charging current adjustment module 302, the charging current of described rechargeable battery 312 is set as I1.And if gather RSSI value R1≤RSSI threshold value R2, then charge control module 304 sends signal S2 to charging current adjustment module 302, to indicate charging current adjustment module 302, the charging current of described rechargeable battery 312 is set as the electric current I 2 less than I1.
The adjustment of described charging current can be realized by variable resistance, programmable resistance or other regulating current devices.
In addition, although describe the present invention with reference to specific embodiment, these descriptions are not intended to for restrictive.After reference example embodiment, the various amendment of the disclosed embodiments and alternate embodiment of the present invention easily will be shown in aobvious the becoming of those of ordinary skill in the art.Therefore, it is expected to claims and will contain any this type of change or alternate embodiment of falling in the scope of the invention.
Claims (10)
1., for reducing a method for the temperature of mobile device, wherein said mobile device has rechargeable battery, and the method comprises the following steps:
Determine whether described rechargeable battery charges;
If described rechargeable battery charges, then determine whether described mobile device carries out high-power RF work; And
If described mobile device carries out high-power RF work, then regulate the charging current of described rechargeable battery to reduce the temperature of described mobile device and to reduce radiation.
2. the method for claim 1, it is characterized in that, determine that the step whether described mobile device is carrying out high-power RF work comprises: the received signal strength indicator RSSI value R1 gathered mobile device side is compared with RSSI threshold value R2, and the method also comprises:
If the RSSI value R1>RSSI threshold value R2 gathered, is set as I1 by the charging current of described rechargeable battery; And
If the RSSI value R1≤RSSI threshold value R2 gathered, is set as I2 by the charging current of described rechargeable battery, wherein I1>I2.
3. method as claimed in claim 2, it is characterized in that, described RSSI threshold value R2 is-90dBm.
4. the method as described in one of claims 1 to 3, is characterized in that, described mobile device is one of the following: mobile phone, flat computer and personal digital assistant.
5. method as claimed in claim 4, it is characterized in that, the rated charge stream according to described rechargeable battery sets I1 and I2.
6. a charging method for mobile device, described mobile device has rechargeable battery, and described method comprises:
While giving described charging of mobile devices, determine whether described mobile device carries out high-power RF work; And
If described mobile device carries out high-power RF work, then regulate the charging current of described rechargeable battery to reduce the temperature of described mobile device and to reduce radiation.
7. for while carrying out high-power RF work at mobile device to a method for charging of mobile devices, described mobile device has rechargeable battery, and described method comprises:
Regulate the charging current of described rechargeable battery to reduce the temperature of described mobile device and to reduce radiation.
8., for a charger for the rechargeable battery of mobile device, described charger has:
Charge control module, described battery charging control module is configured to receive the radio frequency receiving signal intensity indicating RSSI value of mobile device side collection to determine whether described RSSI value exceedes the RSSI threshold value preset when described rechargeable battery charges from described mobile device; And
Charging current adjustment module, described charging current adjustment module is configured to the charging current reducing described rechargeable battery when described RSSI value is no more than the RSSI threshold value preset.
9. charger as claimed in claim 8, it is characterized in that, described charging current adjustment module comprises regulating current device, and described regulating current device is configured to the charging current regulating described rechargeable battery.
10. charger as claimed in claim 8, it is characterized in that, described charge control module is further configured to the RSSI value R1 of collection compared with the RSSI threshold value R2 preset, and described charging current adjustment module is further configured to and when the RSSI value R1>RSSI threshold value R2 gathered the charging current of described rechargeable battery is set as I1 and the charging current of described rechargeable battery is set as I2, wherein I1>I2 when the RSSI value R1≤RSSI threshold value R2 gathered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310237092.0A CN104243670A (en) | 2013-06-14 | 2013-06-14 | Method for lowering temperature of mobile device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310237092.0A CN104243670A (en) | 2013-06-14 | 2013-06-14 | Method for lowering temperature of mobile device |
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| CN104243670A true CN104243670A (en) | 2014-12-24 |
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| CN201310237092.0A Pending CN104243670A (en) | 2013-06-14 | 2013-06-14 | Method for lowering temperature of mobile device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107277249A (en) * | 2017-06-20 | 2017-10-20 | 维沃移动通信有限公司 | It is a kind of to reduce the method and mobile terminal of interference of call signal |
| CN107919693A (en) * | 2016-10-10 | 2018-04-17 | 三星电子株式会社 | For the electronic device and its operating method to charge to battery |
| CN110365082A (en) * | 2019-07-24 | 2019-10-22 | 昆山龙腾光电有限公司 | Electric power management circuit, electronic equipment and method for managing power supply |
| CN114302486A (en) * | 2022-02-11 | 2022-04-08 | 成都市联洲国际技术有限公司 | Control method and device of wireless network equipment and wireless network system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114302486B (en) * | 2022-02-11 | 2024-03-29 | 成都市联洲国际技术有限公司 | Control method and device of wireless network equipment and wireless network system |
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Application publication date: 20141224 |