Method for automatic power-down protection of mobile terminal in contact with liquid and mobile terminal

Abstract

The invention discloses a method of automatic power down protection during contact of a terminal mobile with liquid. The method is applicable to the terminal mobile with a capacitive touch screen, and comprises the following steps that (1) whether capacitance variation values of zones on a touch screen are in a preset range is detected; the preset range is a range of the capacitance variation values the touch screen generated during the contact between the liquid and the touch screen; and a zone with the capacitance variation value in the preset range is called a liquid contact zone; (2) a total area value of the liquid contact zone is calculated; and whether the total area value is greater than or equal to a preset value is judged, if so, then the next step is executed, if not, an initial state is returned; and (3) the terminal mobile is powered down and turned off. According to the method, automatic power down of the terminal mobile can be triggered by the terminal mobile when the liquid contact zone on the touch screen is greater than or equal to a used area of the touch screen; the danger that the terminal mobile is burned-out since the liquid enters the terminal mobile is avoided; and the terminal mobile is well protected.

Description

technical field [0001] The invention relates to the field of mobile communication, in particular to a method for automatic power-off protection of a mobile terminal in contact with liquid. Background technique [0002] With the continuous development of social economy and the continuous progress of science and technology, people's living standards are also increasing day by day. Mobile terminals such as mobile phones are also becoming more and more popular in people's lives, and have become an indispensable necessity in people's lives. Due to the existence of many unpredictable factors in people's living environment, the mobile terminals used by people may not work normally. Therefore, mobile terminals with self-protection functions are more and more popular among people and have attracted manufacturers. of growing concern. [0003] As we all know, the mobile terminals used in people's daily life generally do not have the waterproof function. After the mobile terminal is in...

AI Technical Summary

Problems solved by technology

[0003] As we all know, the mobile terminals used in people's daily life generally do not have the waterproof function. After the mobile terminal is inadvertently flooded, the working circuit on the circuit board of the mobile terminal will be short-circuited, thereby burning the circuit board and causing the mobile terminal to fail to work normally. It can only be restored to normal use through maintenance, and if the situation is serious, it may even cause the mobile terminal to be completely burned out and scrapped

[0004] In addition, although with the continuous development of technology in the field of mobile terminals, mobile terminals with waterproof functions have appeared. One of the implementation methods is to place the circuit part in a sealed sleeve to realize the waterproof function, but the sealed sleeve and the mobile terminal shell The body is easy to wear and tear, the waterproof effect is not ideal, and the waterproof test is complicated, the defect rate will be high, and the production and processing costs are expensive; there is another way to realize it by adding corresponding waterproof components in the mobile terminal, that is, through the field effect tube, bistable circuit, water trigger circuit and reset circuit to realize the automatic shutdown of the mobile terminal after falling into the water to achieve the waterproof purpose of power failure protection, but it uses a lot of parts and a very complicated structure, which also leads to expensive Production and processing costs

It can be seen from the above that the cost of implementing waterproof protection for mobile terminals in the prior art is very high. Therefore, for general mid- and low-end mobile terminals, it has not been able to achieve a good waterproof effect, which severely limits mobile terminals with waterproof protection. Popularization and use in people's lives

Images