Delayed Sleep Phase Syndrome

Introduction to Hibernate and Sleep Functions in Linux Power Management

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Introduction to Hibernate and Sleep Functions in Linux Power Management

Original:https://mp.weixin.qq.com/s/8tBqZ3G7reXkHOXj4rxMMA 1. Introduction The Hibernate and Sleep functions are core features of Linux Power Management (PM), and their purposes are similar: pause usage —> save context —> power off the system to save energy········> restore the system —> restore context —> continue usage. This article introduces these two functions from the perspective of the interfaces … Read more

Linux Power Management (2): Basic Concepts and Software Architecture of Conventional Power Management

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Linux Power Management (2): Basic Concepts and Software Architecture of Conventional Power Management

Original: https://mp.weixin.qq.com/s/HJihdfu9zVYEuvHVV0WXwQ 1. Introduction Conventional power management methods in Linux systems include shutdown (Power off), standby (Standby or Hibernate), and reboot (Reboot). These methods were used during the era of PCs or servers before the widespread adoption of embedded Linux. In that primitive era of computer science, driven by Moore’s Law, humanity was focused on … Read more

Understanding ECU Wake-up, Sleep, and Reset

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Understanding ECU Wake-up, Sleep, and Reset

This article focuses on the wake-up, sleep, and reset of the ECU, examining whether your understanding aligns with these concepts. 1. ECU Wake-up To clarify the ECU wake-up process, we must study the corresponding hardware schematic. The essence of ECU wake-up is to supply power to the ECU. For better understanding, this article simplifies a … Read more

Comparison of BLE and SparkLink SLE Protocols

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Comparison of BLE and SparkLink SLE Protocols

The BLE protocol is established by the Bluetooth Special Interest Group and is widely used in short-range communication fields with low power requirements, such as smartwatches, fitness bands, smart lighting, and mice. The protocol is relatively mature. The SparkLink technology, introduced by Huawei, is a new wireless communication standard, with the SLE (SparkLink Low Energy) … Read more

What is Delayed Sleep Phase Syndrome (DSPS)?

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What is Delayed Sleep Phase Syndrome (DSPS)?

1. Definition Delayed Sleep Phase Syndrome (DSPS) is a circadian rhythm sleep disorder characterized by a significant delay in the sleep-wake cycle of the patient, typically falling asleep between 2 AM and 6 AM and waking up naturally around noon or in the afternoon. This sleep pattern is inconsistent with social and work demands, leading … Read more