CN101806641A - Device and method for realizing overheating prompt of mobile terminal - Google Patents
Device and method for realizing overheating prompt of mobile terminal Download PDFInfo
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Abstract
The invention discloses a device for realizing overheating prompt of a mobile terminal. The device comprises a thermal-sensitive device for acquiring the temperature of a heat emitting device, a baseband processor and an alarm device, wherein the baseband processor obtains the temperature rising speed of the heat emitting device according to the temperature acquired by the thermal-sensitive device, compares the temperature rising speed with the pre-stored conventional temperature rising curve of the heat emitting device, and sends an alarm command to the alarm device when the temperature rising speed of the heat emitting device is higher than the temperature rising speed corresponding to the conventional temperature rising curve and the power of transmitting a signal is over a preset threshold value; and the alarm device generates an alarm according to the alarm command. The invention also discloses a method for realizing overheating prompt of the mobile terminal. The scheme of the invention can prompt the user and inform the user the current communication condition and the heating state when the communication environment becomes bad and the temperature rising speed of the mobile terminal becomes faster.
Description
Technical Field
The invention relates to a mobile terminal overheating detection technology, in particular to a device and a method for realizing overheating prompt of a mobile terminal.
Background
Today, people are used to keep voice communication with relatives and friends and access network resources anytime and anywhere through convenient and light mobile terminals. With the development of chip packaging technology, more and more functions are being integrated into small-sized mobile terminals, and the products accordingly show a greatly increasing trend, however, the demands of customers and the competitive pressure force mobile terminal manufacturers to pursue volume miniaturization. The development trend of the mobile terminal design leads to increase of heating density of unit volume in the mobile terminal, and in a limited space in the mobile terminal, the temperature can not be reduced by adopting heat dissipation technologies such as a fan, a radiator or a heat pipe, so that the problem that the heating of the mobile terminal is difficult to solve is solved, and the user experience is seriously influenced.
In a wireless communication system, the actual power of the electromagnetic waves emitted by the mobile terminal changes as the wireless communication progresses. When the mobile terminal receives the wireless signal of the base station, if the power of the wireless signal is found to be low, it means that the radio transmission environment between the mobile terminal and the base station is poor, for example: when the distance between the mobile terminal and the base station is far or the mobile terminal and the base station are shielded by buildings, the transmission power of the radio frequency signal can be increased by the mobile terminal so as to maintain the quality of wireless communication. On the other hand, when the base station receives the wireless signal transmitted from the mobile terminal, if the power of the wireless signal is low, it also means that the wireless transmission environment is not good, at this time, the base station can also send an instruction to the mobile terminal to increase the transmission power of the wireless signal, so as to ensure the normal communication between the mobile terminal and the base station.
At present, the thermal design and heating test of the mobile terminal are mostly steady state analysis based on the maximum transmission power, that is: after the mobile terminal works for a long time, various limit tests are carried out at the highest temperature of normal operation. However, from the market reaction point of view, the complaint of the user is that the mobile terminal is obviously heated within a short time of the initial call, for example, within 20 minutes, that is, the feeling of the user on the temperature rise of the mobile terminal is a complicated psychological process, which is not completely in reaching the maximum temperature value after the steady state, and the call time of most calls is not too long, so that the control of the temperature rise speed is the working key point of the design of the mobile terminal in practical use.
In summary, when a user uses a mobile terminal to perform wireless communication, the power of the radio frequency signal transmitted by the mobile terminal is not constant, sometimes lower, and sometimes higher, which mainly depends on the wireless communication environment where the user is located. Of note are: when the radio frequency signal is transmitted in high power, the power amplifier usually works at full load, the power amplifier is the most heat generated by the mobile terminal, so that a large amount of heat is generated, the temperature of the mobile terminal rises abnormally and quickly, and a user can obviously feel that the mobile terminal is hot in a short time, which is the least good user experience.
In addition, in the existing mobile terminal, signal bars displayed on the corners of the screen are usually only displayed according to the received power read by the radio frequency chip of the mobile terminal, and the strength of the signals is represented by the number of grids; by the method, a handheld user cannot know the quality of a local signal in a mobile call without using an earphone for calling, and the working state of a power amplifier, whether the mobile terminal is overheated or is about to be overheated and the like are more unknown.
Moreover, the existing mobile terminal does not prompt the user that the heating of the mobile terminal is caused by the bad communication environment where the user is located; the situation that the wireless communication signal quality of the current environment of the user is poor is not found according to temperature detection and signal detection, so that the mobile terminal is overheated due to long-time conversation, or the user is advised to try to change the communication place, so that the heating condition of the mobile terminal is improved.
Disclosure of Invention
In view of the above, the main objective of the present invention is to provide an apparatus and method for prompting overheating of a mobile terminal, which can prompt a user when a communication environment becomes poor and a temperature rising speed of the mobile terminal becomes fast.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
the invention provides a device for realizing overheating prompt of a mobile terminal, which comprises: a thermosensitive device for collecting the temperature of the heating device, a baseband processor and an alarm device; wherein,
the base band processor is used for obtaining the temperature rise speed of the heating device according to the temperature collected by the thermosensitive device, comparing the temperature rise speed with a conventional temperature rise curve of the heating device stored in advance, and sending an alarm instruction to the alarm device when the temperature rise speed of the heating device is larger than the temperature rise speed corresponding to the conventional temperature rise curve and the power of a transmitting signal exceeds a preset threshold value;
and the alarm device generates an alarm according to the alarm instruction.
In the above solution, the apparatus further includes a power measurement module and an analog-to-digital converter; wherein,
the power measuring module is used for measuring the power of the transmitted signal through the current inductor or the power detector by utilizing the energy of the coupled part of the coupler;
and the analog-to-digital converter is used for converting the temperature acquired by the thermosensitive device from an analog signal to a digital signal and transmitting the digital signal to the baseband processor, and converting the power of the transmitting signal obtained by the power measurement module into the digital signal and then transmitting the digital signal to the baseband processor.
In the above scheme, the heating device is a baseband processing main chip, and/or a radio frequency transceiver main chip, and/or a battery;
the thermosensitive device is a thermistor and is arranged near the heating device.
In the above scheme, the alarm device includes:
when the alarm instruction is an instruction for displaying prompt information, the liquid crystal display displays the prompt information in a dialog box form;
and/or a motor oscillator which vibrates according to a specified vibration rhythm when the alarm instruction is a touch prompt instruction;
and/or the indicator light is flickered at a higher frequency when the alarm instruction is an indicator light prompt instruction.
The invention provides a method for realizing overheating prompt of a mobile terminal, which comprises the following steps:
in the mobile terminal, collecting the temperature of a heating device;
and calculating the temperature rise speed of the heating device according to the acquired temperature, comparing the temperature rise speed with a conventional temperature rise curve of the heating device, and generating an alarm when the temperature rise speed of the heating device is greater than the temperature rise speed corresponding to the conventional temperature rise curve and the power of the transmitted signal exceeds a preset threshold value.
In the above scheme, after the temperature of the heat generating device is collected, the method further includes: and converting the collected temperature from an analog signal into a digital signal.
In the above scheme, the obtaining of the power of the transmission signal specifically includes: the energy of a part of the transmission signal is coupled by a coupler, then the power of the transmission signal is measured by a current inductor or a power detector, and then the transmission signal is converted into a digital signal by an analog-digital converter and then is sent to a baseband processor.
In the above scheme, the generating an alarm specifically includes: according to an alarm instruction of the baseband processor, alarming is carried out through displaying prompt information, and/or tactile prompt, and/or indicator light prompt;
the alarm is as follows: when the alarm instruction is an instruction for displaying prompt information, the prompt information is displayed on the liquid crystal display in a dialog box mode;
and/or when the alarm instruction is a touch prompt instruction, the motor oscillator prompts a user according to a specified vibration rhythm;
and/or when the alarm instruction is an indicator light prompt instruction, the indicator light flashes at a higher frequency.
The invention provides a device and a method for realizing overheating prompt of a mobile terminal, wherein in the mobile terminal, a thermosensitive device is used for collecting the temperature of a heating device; the base band processor obtains the temperature rise speed of the heating device according to the temperature collected by the thermosensitive device, compares the temperature rise speed with the conventional temperature rise curve of the heating device, and informs the alarm device to give an alarm when the temperature rise speed of any heating device is larger than the temperature rise speed corresponding to the conventional temperature rise curve and the power of the transmitted signal exceeds a preset threshold value; therefore, when the communication environment becomes severe and the temperature rising speed of the mobile terminal becomes high, the user can be prompted in time to inform the user of the current communication condition and the heating state.
Drawings
Fig. 1 is a schematic structural diagram of an apparatus for implementing overheat prompt of a mobile terminal according to the present invention;
fig. 2 is a schematic flow chart of a method for implementing overheat prompt of a mobile terminal according to the present invention.
Detailed Description
The basic idea of the invention is: in the mobile terminal, a thermosensitive device is used for collecting the temperature of a heating device; the base band processor obtains the temperature rise speed of the heating device according to the temperature collected by the thermosensitive device, compares the temperature rise speed with the conventional temperature rise curve of the heating device, and informs the alarm device to give an alarm when the temperature rise speed of any heating device is larger than the temperature rise speed corresponding to the conventional temperature rise curve and the power of the transmitted signal exceeds a preset threshold value.
The invention is further described in detail below with reference to the figures and the specific embodiments.
As shown in fig. 1, the device for prompting overheating of a mobile terminal of the present invention includes: a thermosensitive device 11, a baseband processor 12 and an alarm device 13; wherein,
the thermosensitive device 11 is used for collecting the temperature of the heating device;
here, the heat generating device includes a baseband processing main chip, a radio frequency transceiver main chip, a battery 20, and the like; the thermosensitive device can be a thermistor and the like and is arranged near the heating device;
the baseband processor 12 is configured to obtain a temperature rise speed of the heating device according to the temperature collected by the thermosensitive device 11, compare the temperature rise speed with a conventional temperature rise curve of the heating device, and send an alarm instruction to the alarm device 13 when the temperature rise speed of any one heating device is greater than the temperature rise speed corresponding to the conventional temperature rise curve and the power of the transmission signal exceeds a preset threshold;
here, the conventional temperature rise curve of the heat generating device is provided by a manufacturer of the heat generating device and is stored in the baseband processor in advance;
the alarm device 13 is used for generating an alarm according to the alarm instruction and prompting a user;
specifically, the alarm generated according to the alarm instruction may be a display prompt message, and/or a tactile prompt, and/or an indicator light prompt;
wherein, when the alarm instruction is a prompt information display instruction, the alarm device 13 includes a liquid crystal display 131, and displays the prompt information in a dialog box form on the liquid crystal display 131 according to the prompt information display instruction, for example: the quality of wireless signals of the current position of a user is poor, the mobile terminal is overheated due to long-time communication, and the user is advised to try to change a communication place; further, after the prompt information is displayed, the user is also prompted whether to close the prompt information, if the user selects yes, the current prompt information is immediately closed, and the baseband processor 12 is informed not to judge any more; if no, after a specified time interval, the baseband processor 12 is notified to perform the judgment again, where the specified time is preset, for example, the interval time is 2 minutes;
and/or, when the alarm instruction is a tactile prompt instruction, the alarm device 13 includes a motor oscillator 132, and prompts the user according to a specified vibration rhythm by the motor oscillator 132 according to the tactile prompt instruction; wherein, the appointed vibration rhythm is preset and is written in the instruction book to inform the user;
and/or, when the alarm instruction is an indicator light prompt instruction, the alarm device 13 includes an indicator light 133, the alarm device 13 makes the indicator light 133 flash at a lower frequency when the alarm instruction is not received, and makes the indicator light 133 flash at a higher frequency according to the alarm instruction after receiving the indicator light prompt instruction, so as to prompt the user that the mobile terminal is in a high-power emission state and a trend of too fast temperature rise occurs; the indicator light 133 may be a light emitting diode, and is disposed on an outer side of the mobile terminal housing, so that a user can clearly see the indication.
Further, the apparatus further comprises an analog-to-digital converter 14, a power measurement module 15, wherein,
the analog-to-digital converter 14 is used for converting the temperature collected by the thermosensitive device 11 from an analog signal to a digital signal and transmitting the digital signal to the baseband processor 12, and converting the power of the transmitting signal obtained by the power measuring module 15 into a digital signal and transmitting the digital signal to the baseband processor 12;
and a power measuring module 15, configured to measure the power of the transmission signal through a current sensor or a power detector by using the energy of the coupling part of the transmission signal, convert the measured power into a digital signal through the analog-to-digital converter 14, and send the digital signal to the baseband processor 12.
Further, the apparatus further comprises: a radio frequency transceiving module 16, a power adjusting module 17, a duplexer 18, an antenna 19 and a battery 20; wherein,
the radio frequency transceiving module 16 is configured to down-convert and filter the received wireless signal, transmit the down-converted and filtered wireless signal to the baseband processor 12, filter and up-convert a signal sent by the baseband processor 12, and send the filtered signal to the power adjustment module 17;
the radio frequency transceiver module further comprises a receiving circuit 161 and a transmitting circuit 162, wherein,
a receiving circuit 161, configured to down-convert and filter a received wireless signal, and then transmit the down-converted and filtered wireless signal to the baseband processor 12;
a transmitting circuit 162, configured to filter and up-convert the signal sent by the baseband processor 12, and then send the signal to the power adjusting module 17;
correspondingly, the baseband processor 12 is further configured to perform signal processing such as analog-to-digital conversion, demodulation, and decoding on the signal transmitted by the radio frequency transceiver module 16, and correspondingly generate an audio signal; the voice sound waves are subjected to signal processing such as modulation and coding and are sent to the radio frequency transceiving module 16;
a power adjusting module 17, configured to adjust a gain of an internal power amplifier according to control of the baseband processor 12, amplify a signal through the internal power amplifier to form a transmit signal, and transmit the transmit signal to an antenna 19 through a duplexer 18;
correspondingly, the baseband processor 12 is further configured to control the power adjustment module 17 to adjust the gain of the power amplifier according to the power of the transmission signal measured by the power measurement module 15;
a duplexer 18 for transmitting the transmission signal and the wireless signal;
an antenna 19 for transmitting a transmission signal and receiving a wireless signal;
and a battery 20 for supplying power.
Based on the above device, the present invention further provides a method for implementing overheat prompt of a mobile terminal, as shown in fig. 2, the method includes the following steps:
step 201: in the mobile terminal, collecting the current temperature of a heating device;
specifically, in the mobile terminal, the thermosensitive device is arranged at a position close to the heating device as much as possible, the heating device in the mobile terminal mainly comprises a baseband processing main chip, a radio frequency transceiver main chip, a battery and the like, and when the thermosensitive device is a thermistor, the temperature change near the heating device can change the voltage division value on the thermistor;
the method further comprises the following steps: converting the acquired temperature from an analog signal into a digital signal;
specifically, the analog-to-digital converter can be used for converting the temperature collected by the thermosensitive device from an analog signal to a digital signal and transmitting the digital signal to the baseband processor;
step 202: the temperature rise speed of the heating device is obtained according to the collected temperature, and is compared with a conventional temperature rise curve of the heating device, and when the temperature rise speed of any one heating device is larger than the temperature rise speed corresponding to the conventional temperature rise curve and the power of a transmitting signal exceeds a preset threshold value, an alarm is generated;
specifically, conventional temperature rise curves provided by various heating device manufacturers are stored in a baseband processor of the mobile terminal in advance, a threshold value of power of a transmitting signal is set in the baseband processor, the baseband processor calculates the temperature rise speed of the heating device according to the temperature of the heating device collected by a thermosensitive device, compares the temperature rise speed with the conventional temperature rise curve of the heating device, and generates an alarm when the temperature rise speed of any one heating device is larger than the temperature rise speed corresponding to the conventional temperature rise curve and the power of the transmitting signal exceeds the preset threshold value; the baseband processor calculates the temperature rise speed of the heating device according to the temperature of the heating device collected by the thermosensitive device, and the temperature rise speed can be as follows: the baseband processor divides the temperature difference of the heating devices at certain time intervals by the time intervals to obtain the temperature rise speed of the heating devices;
the power of the transmitted signal can be obtained by coupling part of the energy of the transmitted signal by using a coupler, measuring the power of the transmitted signal by using a current inductor or a power detector, converting the power of the transmitted signal into a digital signal by using an analog-to-digital converter and then sending the digital signal to a baseband processor;
in this step, the mobile terminal sends a transmission signal and receives a wireless signal through an antenna, a radio frequency transceiver module in the mobile terminal performs down-conversion and filtering on the received wireless signal and then transmits the wireless signal to a baseband processor, and the baseband processor performs signal processing such as analog-to-digital conversion, demodulation and decoding on the transmitted signal and correspondingly generates an audio signal; the baseband processor can also perform signal processing such as modulation and coding on voice sound waves of a user and send the voice sound waves to the radio frequency transceiver module, the radio frequency transceiver module performs filtering and up-conversion on signals sent by the baseband processor, then the signals are amplified through a power amplifier in the power adjustment module to form transmitting signals, and the transmitting signals are transmitted to the antenna through the duplexer; when the mobile terminal detects that the radio transmission environment is worse and receives an instruction of increasing the power of a transmitting signal sent by a base station, the power adjusting module adjusts the gain of an internal power amplifier under the control of a baseband processor;
the alarm can be generated by displaying prompt information, and/or tactile prompt, and/or indicator light prompt and the like according to the alarm instruction of the baseband processor;
when the alarm instruction is a prompt information display instruction, displaying prompt information in a dialog box form on the liquid crystal display according to the prompt information display instruction, wherein the prompt information display method comprises the following steps: the quality of wireless signals of the current position of a user is poor, the mobile terminal is overheated due to long-time communication, and the user is advised to try to change a communication place; further, after the prompt information is displayed, the user is prompted whether to close the prompt information, if the user selects 'yes', the current prompt information is immediately closed, and the baseband processor is informed not to judge any more; if no, informing the baseband processor to judge again after a specified time interval;
and/or when the alarm instruction is a touch prompt instruction, enabling the motor oscillator to prompt a user according to a specified vibration rhythm according to the touch prompt instruction; the specified vibration rhythm is preset and is written in the specification to inform a user;
and/or when the alarm instruction is an indicator light prompt instruction, enabling the indicator light to flash at a higher frequency according to the indicator light prompt instruction, and prompting a user that the mobile terminal is in a high-power emission state and a trend of too fast temperature rise occurs; the indicator light may be a light emitting diode, which is disposed outside the housing of the mobile terminal, and the user can clearly see the indication.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, and any modifications, equivalents, improvements, etc. that are within the spirit and principle of the present invention should be included in the present invention.
Claims (8)
1. An apparatus for implementing overheat prompt of a mobile terminal, the apparatus comprising: a thermosensitive device for collecting the temperature of the heating device, a baseband processor and an alarm device; wherein,
the base band processor is used for obtaining the temperature rise speed of the heating device according to the temperature collected by the thermosensitive device, comparing the temperature rise speed with a conventional temperature rise curve of the heating device stored in advance, and sending an alarm instruction to the alarm device when the temperature rise speed of the heating device is larger than the temperature rise speed corresponding to the conventional temperature rise curve and the power of a transmitting signal exceeds a preset threshold value;
and the alarm device generates an alarm according to the alarm instruction.
2. The apparatus of claim 1, further comprising a power measurement module, and an analog-to-digital converter; wherein,
the power measuring module is used for measuring the power of the transmitted signal through the current inductor or the power detector by utilizing the energy of the coupled part of the coupler;
and the analog-to-digital converter is used for converting the temperature acquired by the thermosensitive device from an analog signal to a digital signal and transmitting the digital signal to the baseband processor, and converting the power of the transmitting signal obtained by the power measurement module into the digital signal and then transmitting the digital signal to the baseband processor.
3. The device according to claim 1 or 2, wherein the heat generating device is a baseband processing main chip, and/or a radio frequency transceiver main chip, and/or a battery;
the thermosensitive device is a thermistor and is arranged near the heating device.
4. The device according to claim 1 or 2, characterized in that the alarm device comprises:
when the alarm instruction is an instruction for displaying prompt information, the liquid crystal display displays the prompt information in a dialog box form;
and/or a motor oscillator which vibrates according to a specified vibration rhythm when the alarm instruction is a touch prompt instruction;
and/or the indicator light is flickered at a higher frequency when the alarm instruction is an indicator light prompt instruction.
5. A method for realizing overheating prompt of a mobile terminal is characterized by comprising the following steps:
in the mobile terminal, collecting the temperature of a heating device;
and calculating the temperature rise speed of the heating device according to the acquired temperature, comparing the temperature rise speed with a conventional temperature rise curve of the heating device, and generating an alarm when the temperature rise speed of the heating device is greater than the temperature rise speed corresponding to the conventional temperature rise curve and the power of the transmitted signal exceeds a preset threshold value.
6. The method of claim 5, wherein after collecting the temperature of the heat generating device, the method further comprises: and converting the collected temperature from an analog signal into a digital signal.
7. The method according to claim 5 or 6, characterized in that the power of the transmitted signal is obtained by: the energy of a part of the transmission signal is coupled by a coupler, then the power of the transmission signal is measured by a current inductor or a power detector, and then the transmission signal is converted into a digital signal by an analog-digital converter and then is sent to a baseband processor.
8. Method according to claim 5 or 6, characterized in that said generating an alarm is in particular: according to an alarm instruction of the baseband processor, alarming is carried out through displaying prompt information, and/or tactile prompt, and/or indicator light prompt;
the alarm is as follows: when the alarm instruction is an instruction for displaying prompt information, the prompt information is displayed on the liquid crystal display in a dialog box mode;
and/or when the alarm instruction is a touch prompt instruction, the motor oscillator prompts a user according to a specified vibration rhythm;
and/or when the alarm instruction is an indicator light prompt instruction, the indicator light flashes at a higher frequency.
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| CN105894057A (en) * | 2016-03-29 | 2016-08-24 | 青岛海尔智能技术研发有限公司 | Method for identifying foods in refrigerator and refrigerator |
| CN106055457A (en) * | 2016-07-30 | 2016-10-26 | 北京海杭通讯科技有限公司 | Detection method and device for abnormal temperature increasing of intelligent handheld equipment |
| CN106055457B (en) * | 2016-07-30 | 2019-01-08 | 北京海杭通讯科技有限公司 | A kind of method for detecting and device of the improper heating of Intelligent hand-hold equipment |
| CN110736567A (en) * | 2018-07-20 | 2020-01-31 | 上海复旦微电子集团股份有限公司 | Temperature measuring method of temperature measuring chip, temperature measuring chip and readable storage medium |
| CN110736567B (en) * | 2018-07-20 | 2021-04-02 | 上海复旦微电子集团股份有限公司 | Temperature measuring method of temperature measuring chip, temperature measuring chip and readable storage medium |
| CN109580028A (en) * | 2018-12-19 | 2019-04-05 | 上海帆声图像科技有限公司 | Heat up measurement method inside display screen |
| CN113380010A (en) * | 2021-06-16 | 2021-09-10 | 国家电网有限公司 | High-temperature early warning system of power equipment |
| CN113464480A (en) * | 2021-08-13 | 2021-10-01 | 重庆金康赛力斯新能源汽车设计院有限公司 | Fan control method and system |
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