Sleep/wake-up device and method based on acceleration sensor for vehicle-mounted electronic equipment

Abstract

The invention discloses a sleep / wake-up device and method based on an acceleration sensor for vehicle-mounted electronic equipment. The sleep / wake-up method comprises the following steps: S1, the current state of an automobile is acquired by the acceleration sensor and correspondingly an interruption signal is generated; S2, processing analysis is performed by an MCU (Microprogrammed Control Unit) according to the interruption signal from the acceleration sensor and a sleep / wake up control command is generated; and S3, a display circuit and a control circuit are correspondingly switched on or shut off according to the sleep / wake-up control command. According to the invention, the acceleration sensor arranged in the automobile correspondingly acquires a corresponding interruption signal according to the state of the automobile and sends the interruption signal to the MCU, the MCU achieves processing analytic judgment to the interruption signal so as to confirm that the signal is a sleep command or a wake-up command, the display circuit and the control circuit are correspondingly opened or closed according to the sleep or wake-up command to achieve the purpose of energy consumption reduction, and meanwhile, normal operation of the vehicle-mounted electronic equipment is ensured as required.

Description

technical field [0001] The invention belongs to the technical field of automotive electronic equipment, and specifically relates to an acceleration sensor-based device and method for awakening vehicle electronic equipment from sleep. Background technique [0002] With the rapid development of the automobile industry and the continuous improvement of people's demand for on-board electronic equipment, various automotive electronic products have sprung up in large numbers, such as on-board DVD, on-board GPS, etc., and the power consumption of a large number of on-board electronic products has increased. , It will inevitably lead to a large amount of consumption of car batteries and fuel. Therefore, more and more car electronic devices need to have low power consumption functions, that is, enter the sleep mode when the car is stopped or the user does not need it, so as to reduce power consumption and energy consumption. And when the user needs to use or the car is started, the o...

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Problems solved by technology

[0005] For this reason, the object of the present invention is to provide a device and method for dormancy and wake-up of vehicle-mounted electronic equipment based on an acceleration sensor, so as to solve the problems of inconvenient operation, cumbersome control and The problem of high power consumption

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