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Smart television and under-voltage protection fault tolerance method thereof

A smart TV and voltage technology, applied in the protection of undervoltage or no voltage, TV, TV system components, etc., can solve problems such as voltage drop, adverse effects on user experience, and inability to reset and start independently. Achieve the effect of improving user experience

Active Publication Date: 2017-12-01
HISENSE VISUAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Once the power failure is triggered, the system enters the protection state, and it cannot reset and start independently; in addition, it will occasionally enter the protection state under the circumstances of the user's artificial quick operation; especially for household power failures and occasional surges voltage drop caused by
These have a negative impact on the user experience

Method used

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  • Smart television and under-voltage protection fault tolerance method thereof
  • Smart television and under-voltage protection fault tolerance method thereof
  • Smart television and under-voltage protection fault tolerance method thereof

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Embodiment Construction

[0028] The present invention will be further elaborated below in conjunction with the accompanying drawings.

[0029] see Figure 5 , Figure 5 The system of the smart TV of the present invention is shown schematically. The present invention proposes a smart TV 100, which includes: a power supply 101, a motherboard power conversion system 104, a memory 105, a SOC 106, a storage device 107, a RESET (reset system) 108 and a detection circuit 109. Compared with the smart TV 100 of the aforementioned first embodiment, the differences between the two are mainly reflected in: the first-level voltage comparison 102 and the first-level current comparison 103 are omitted; the original SOC 106 is replaced by the improved SOC 106a . Among them, through the cooperation of the 12V provided by the power supply 101, the detection signal provided by the detection circuit 109, and the SOC 106, it is detected whether the power supply network is restored, and it is necessary to provide a pre-...

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Abstract

The invention provides a smart television and an under-voltage protection fault tolerance method thereof. The smart television comprises a power supply, a main processor, storage equipment, a resetting system and a voltage detection circuit, the power supply supplies power to the main processor, the storage equipment and the resetting system, the voltage detection circuit is used for detecting whether the power supply voltage of the storage equipment is reduced and triggering and controlling the storage equipment to stop working, software operated by the main processor can realize window detection and is used for determining whether the power supply voltage is increased to the voltage before the storage equipment is triggered and controlled to stop working after the storage equipment is triggered and controlled to stop working, and the main processor further determines whether the storage equipment is controlled to work again according to a determination result given by window detection. According to the smart television and the under-voltage protection fault tolerance method thereof, autonomous recovery can be realized after entering a power failure protection mode so that the user experience is improved.

Description

technical field [0001] The invention relates to a smart TV, in particular to a smart TV with EMMC. Background technique [0002] With the current development of smart TVs, many smart TVs have EMMC (Embedded Multi MediaCard, embedded multimedia card). EMMC is used to store program codes and other data run by the main CPU of smart TVs. Normal operation is very important. Therefore, many smart TVs adopt a power-down protection mechanism for EMMC. When the smart TV is powered off, the EMMC is controlled to stop working to ensure that the data in the EMMC will not be changed or damaged. [0003] like figure 1 Shown is the EMMC power-down protection block diagram of the prior art, including power supply, mainboard power conversion system, detection circuit, memory system, SOC (system on chip), EMMC system and RESET system (reset system). [0004] figure 2 Yes figure 1 A block diagram of a power supply, including a rectification filter circuit, a PFC circuit, an LLC resonant c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N21/443H04N21/442H04N21/426H04N21/4623
CPCH02H3/24H04N5/63H04N21/426H04N21/4424H04N21/4436H04N21/4623
Inventor 孙聪黄飞李见
Owner HISENSE VISUAL TECH CO LTD