Abstract: The present invention relates to the technical field of wearable devices, and in particular, to a watch band and a watch. The watch band includes: a plurality of sequentially connected chain elements, wherein a connecting portion and a connecting groove are provided on each of the chain elements, and the connecting portion is connected to the connecting groove on another adjacent chain element by means of a connecting mechanism; the connecting mechanism comprises a shifting block assembly and two ejector pin assemblies symmetrically provided at two sides of the shifting block assembly; an accommodating cavity and a placement groove penetrating the accommodating cavity are provided on the connecting portion; two oppositely arranged jacks are provided on the connecting groove; and the shifting block assembly is located in the accommodating cavity and the two ejector pin assemblies are located in the placement groove.

Abstract: The present disclosure discloses a method for positioning a device. The method includes obtaining a location parameter associated with the device. The location parameter includes at least one of first location information or speed information. The method also includes obtaining an orientation parameter associated with the device. The orientation parameter includes at least one of first orientation information or angle velocity information. Further, the method includes determining target location information of the device by performing a first fusion calculation based on the location parameter and determining target orientation information of the device by performing a second fusion calculation based on the orientation parameter.

Abstract: The present disclosure provides a rollable display device and an intelligent terminal. The rollable display device comprises flexible display screen, lifting mechanism connected to a top end of the flexible display screen, and rollable screen mechanism connected to a bottom end of the flexible display screen, wherein the lifting mechanism is configured to drive the flexible display screen to move up or down; and the rollable screen mechanism is configured to unfold the flexible display screen when the lifting mechanism drives the flexible display screen to move up or roll up the flexible display screen when the lifting mechanism drives the flexible display screen to move down, thereby realizing lifting and rolling of the screen with no limitation to the volume of the display screen, reducing the occupied space of the display screen, overcoming the problem that the traditional display device is not portable and bringing convenience to users.

Abstract: The present disclosure provides a display panel and a driving method thereof. The display panel includes a substrate and a scan line, a light control device, and a display device on the substrate. The scan line is electrically connected to the light control device and the display panel, so that the light control device and the display device operate simultaneously.

Abstract: An air bubble remover and an applicator for a tempered glass screen protector of an electronic device are provided. The air bubble remover includes a base and a rolling rod, where the base is provided with a mounting space for mounting an electronic device; the rolling rod is rotatably connected to the base and rotatable around a central axis of the rolling rod; and the rolling rod is automatically movable from one side of the mounting space across the mounting space to the other side of the mounting space, so as to remove a remaining air bubble between a tempered glass screen protector and the electronic device. When the rolling rod moves from one side of the mounting space across the mounting space to the other side of the mounting space, the rolling rod is abutted against the tempered glass screen protector to remove the remaining air bubble.

Abstract: A video decoding and encoding method and apparatus, a computer-readable medium, and an electronic device. The video decoding method includes classifying decoded blocks adjacent to a target block according to information about the decoded blocks to obtain at least one category, obtaining a category identifier corresponding to the target block based on coding information corresponding to the target block, determining a target category corresponding to the target block from the at least one category according to the category identifier corresponding to the target block, determining a predictive vector of the target block based on vectors of decoded blocks included in the target category, and decoding the target block based on the predictive vector.

Abstract: Provided are a sterilization device, an air filter, and a filtration system, which relate to the technical filed of sterilization equipment. The sterilization device includes an ultraviolet (UV) lamp module, two cover plates arranged opposite each other, and two reflecting layers, where a flow chamber which allows the air to flow therein is formed between the two cover plates, and each of the two cover plates is provided with at least one air vent communicated with the flow chamber; wherein two opposite surfaces of the two cover plates respectively have the two reflecting layers disposed thereon, and at least one of the two reflecting layers is a diffuse reflection layer; and the UV lamp module is disposed on the cover plate and is used to emit UV light into the flow chamber.

Abstract: A fire measuring device for electric vehicles in a garage includes a fire parameter acquisition device for collecting fire parameters during the fire evolution process of electric vehicles in the garage, a fire monitoring device for dynamically recording the combustion process, a computer, a charging pile, and a water gun fire extinguishing mechanism. The fire monitoring device communicates with the computer. The fire parameters include heat release rate, temperature, radiation, released gas, and electric vehicle mass change. The invention adopts a fire measuring device for electric vehicles in the garage with the above structure. By measuring the parameters such as heat release rate, temperature, radiation, and released gas type during the firing process, the firing mechanism of the electric vehicle stored in the garage is further analyzed and studied to provide basic data for the technical development of electric vehicle fire safety and provide experimental guidance for personnel training.