cell phone
A mobile phone and thermistor technology, applied in the field of electronic information, can solve problems such as increased production costs
Inactive Publication Date: 2015-07-29
HUIZHOU TCL MOBILE COMM CO LTD
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Problems solved by technology
[0003] In the prior art, when it is necessary to set the temperature detection function in the mobile phone, it is often necessary to add an additional temperature sensor, and in this way, it is necessary to purchase another batch of temperature sensors during the production of the mobile phone, resulting in an increase in production costs
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[0026] see first figure 1 , figure 1 is a schematic diagram of the circuit structure of the mobile phone according to the first embodiment of the present invention, such as figure 1 As shown, the mobile phone of the present invention includes a built-in thermistor 101 and a display screen 102. The built-in thermistor 101 is built into the circuit board or battery of the mobile phone. The mobile phone further includes: a user interface module 103, which can generate temperature according to user input A display selection signal, a measurement circuit 104 that can acquire a voltage drop value in an analog signal format across the built-in thermistor 101, and an analog-to-digital converter 105 that converts the analog signal across the built-in thermistor 101 in response to the temperature display selection signal The voltage drop value in the format is converted into a voltage drop value in a digital signal format, and the baseband signal processing chip 106 obtains the tempera...
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The invention provides a mobile phone and a temperature detection method based on the mobile phone. The mobile phone comprises an internal thermistor and a display screen, a measuring circuit, a measuring circuit, an analog-digital converter and a baseband signal processing chip, wherein the internal thermistor is arranged inside a circuit board or battery of the mobile phone; the mobile phone also comprises a user interface module used for generating a temperature display selection signal according to user input, a measuring circuit used for acquiring voltage drop value in an analog signal format at the two ends of the internal thermistor, the analog-digital converter is used for responding the temperature display selection signal and converting the voltage drop value in the analog signal format at the two ends of the internal thermistor into the voltage drop value in a digital signal format and the baseband signal processing chip is used for acquiring temperature of the internal thermistor according to the voltage drop value in the digital signal format and controlling display temperature of the display screen to be the current ambient temperature. By adopting the manner, thermometer function can be provided for the mobile phone without increasing cost.
Description
technical field [0001] The invention relates to the technical field of electronic information, in particular to a mobile phone and a temperature detection method based on the mobile phone. Background technique [0002] At present, mobile terminals have become an indispensable element in people's daily life. With the development of technology, more and more additional functions are embedded in mobile phones, such as web browsing, image capture, video recording, motion speed detection, temperature detection Wait. [0003] In the prior art, when it is necessary to set the temperature detection function in the mobile phone, it is often necessary to add an additional temperature sensor, and in this way, it is necessary to purchase another batch of temperature sensors during the production of the mobile phone, resulting in an increase in production costs . [0004] Generally speaking, a built-in thermistor is often provided on the circuit board or battery of a mobile phone to de...
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IPC IPC(8): H04M1/21G01K7/22
CPCY02A30/00
Inventor 白剑
Owner HUIZHOU TCL MOBILE COMM CO LTD