Abstract: The disclosure provides a battery, a battery apparatus and a battery manufacturing method. The battery manufacturing method includes: providing a first housing including an intermediate part and a first flange, and the intermediate part being a flat plate; or the intermediate part including a top wall and a first side wall enclosing a first accommodating cavity having an opening; providing a second housing including a bottom wall and a second side wall enclosing a second accommodating cavity having an opening, the second side wall extending outward from the opening of the second accommodating cavity to form a second flange, the depth of the first accommodating cavity being smaller than the depth of the second accommodating cavity; disposing a welding head at a side of the first housing away from the second housing, and welding the first flange and the second flange.

Abstract: The disclosure relates to the technical field of batteries, and provides a battery manufacturing method, a battery, a battery module, and a battery pack. The battery manufacturing method includes following steps. Providing an insulating mylar, laminating on the insulating mylar to form a laminated cell that includes a separator film different from the insulating mylar, and wrapping the laminated cell with the insulating mylar. By laminating on the insulating mylar to form the laminated cell and then wrapping the laminated cell with the insulating mylar, a process of moving the laminated cell to the insulating mylar is omitted.

Abstract: The disclosure relates to a technical field of batteries, and in particular, relates to a battery pack. The battery pack includes a box body, a beam, a battery apparatus, and an electrical support base. The beam is disposed in the box body. The battery apparatus is disposed in the box body, and an electrical conductor is disposed on the battery apparatus. The electrical support base is disposed on the beam. The electrical conductor extends from the battery apparatus to the electrical support base and is connected to the electrical support base.

Abstract: The disclosure provides a battery, a battery module, a battery pack, and a battery manufacturing method. The battery includes a housing, a cell, a pole assembly and a connecting piece. The housing includes two first surfaces opposite to each other in a first direction. The cell is arranged in the housing and includes a cell body and a tab portion. The tab portion includes two or more single-piece tabs extending from the lateral side of the cell body. The pole assembly is arranged on the first surface, and the tab portion and the pole assembly are connected through the connecting piece. The vertical distance between an end of the tab portion away from the lateral side of the cell body and the lateral side of the cell body is smaller than the vertical distance between the pole assembly and lateral side of the cell body.

Abstract: A battery assembly, a battery pack, and a vehicle are provided. The battery assembly includes a battery column and a voltage collection assembly disposed on one side of the battery column. The battery column includes at least one first battery, including first and second electrodes. A distance between the first electrode and the voltage collection assembly is greater than a distance between the second electrode and the voltage collection assembly. The first electrode is electrically connected to a case of the first battery, such that a potential of the first electrode is equal to a potential of the case. The voltage collection assembly includes first and second collection terminals. The first collection terminal is connected to the case and configured to collect the potential of the first electrode. The second collection terminal is connected to the second electrode and configured to collect a potential of the second electrode.

Abstract: A battery, a battery module, and a battery pack are provided. The battery includes a cell and a casing. The casing accommodates the cell. The cell includes a cell body, a first insulating film and a second insulating film. The first insulating film is disposed on a surface of the cell body and covers a part of the surface of the cell body. The second insulating film is disposed to be independent from the first insulating film and is partially adhered to a surface of the first insulating film away from the cell body, and is partially adhered to the surface of the cell body that is not covered by the first insulation film. The first insulating film is fixed firmly to the cell body.

Abstract: The disclosure relates to the technical field of batteries, in particular to a battery box, a battery pack, and a vehicle. The battery box includes a beam, a box cover, and a buffer member. The buffer member is disposed between the beam and the box cover and the buffer member is connected to the beam.

Abstract: The disclosure relates to the technical field of batteries, and provides a battery, a battery apparatus and a battery pack. The battery includes a battery surface and a pole element. The battery surface is provided with a first recess, and the first recess is used to accommodate the pole element of the other battery. The pole element is arranged on the battery surface and is located outside a range where the first recess is located. By providing the first recess on the battery surface, the pole element of the other battery can be accommodated in the first recess when the batteries are grouped.

Abstract: A battery manufacturing method and a battery are provided. The battery manufacturing method includes: providing a first housing, wherein the first housing includes an intermediate part and a first flange, and a first positioning part is formed on the first flange; providing a second housing, wherein the second housing includes a bottom wall and a side wall, the side wall extends upward from the bottom wall, the side wall encloses to form an opening, the side wall extends outward from the opening to form a second flange, a second positioning part is formed on the second flange, the intermediate part covers the opening, and the second flange is in contact with the first flange; positioning and aligning the first housing and the second housing through the first positioning part and the second positioning part; and welding the first flange and the second flange.

Abstract: A battery pack includes a bottom plate, a first beam, a frame, and a battery assembly having at least two batteries. A height of the frame is greater than a height of the first beam, the height of the first beam is a distance between a side of the first beam away from the bottom plate and the bottom plate, and the height of the frame is a distance between a side of the frame away from the bottom plate and the bottom plate. The battery assembly is disposed at an accommodating portion between the frame and the first beam, and has a first end and provided with a first explosion-proof valve, and a second end provided with a second explosion-proof valve. A distance from the second explosion-proof valve to the bottom plate is greater than that from the first explosion-proof valve to the bottom plate.

Abstract: The present disclosure provides an in-situ successively fixing rolling type holding device for use in a low-temperature environmental test chamber. The holding device includes a bracket, multiple holding components, and a conveying device. The bracket is fixed in the low-temperature environmental test chamber. The driving mechanism is used for driving the conveying member to rotate, thus making multiple test articles successively pass through the test position in the low-temperature environmental test chamber for the in-situ measurement. The present disclosure can reduce the times of door opening of the low-temperature environmental test chamber during the successive in-situ measurements of multiple test articles in the low-temperature environmental test chamber, thus preventing the door opening and closing of the low-temperature environmental test chamber and the transfer of test article from causing the temperature fluctuation in the temperature field where the test articles are located.

Abstract: The present disclosure relates to the technical field of unmanned aerial vehicle (UAV) tests, and more particularly, to an electromagnetic release device for use in vertical falling tests of tri-rotor UAVs and including a mounting frame and multiple clamping and release modules arranged on the mounting frame. movable kits, which include a ferromagnetic plate matching and connected with the electromagnetic adsorption assembly, one end of the ferromagnetic plate is hinged with the electromagnet mounting frame, and the other end of the ferromagnetic plate is connected with the UAV connecting plate; The present disclosure uses electromagnetic control to accurately control the simultaneous opening of three clamping and release modules of a UAV, realizes the release and landing of the UAV in a horizontal status, and is characterized by simple structure and easy operation.

Abstract: The invention relates to the technical field of batteries, and provides a battery and a manufacturing method of battery. The battery includes a main body portion and a tab. The tab is arranged on the main body portion. The tab includes a first welding mark and a second welding mark. The second welding mark covers at least a part of the first welding mark. By forming the first welding mark and the second welding mark on the tab, and the second welding mark covers at least part of the first welding mark, that is, when the tab is welded with the cover element, the tab is welded twice.

Abstract: A battery and a battery manufacturing method are provided. The battery includes a main body portion, a cover plate assembly, a tab portion, and a connecting piece. The cover plate assembly is located on a top surface of the main body portion and includes a pole. The tab portion extends out from a side surface of the main body portion and is bent toward a first large surface of two opposite large surfaces of the main body portion. The connecting piece is bent into a first section, located on the top surface and connected with the pole, and a second section, parallel or almost parallel to the side surface and welded to a surface of one side of the tab portion facing or facing away from the main body portion. A surface where the connecting piece is connected with the second section is disposed opposite to the main body portion.

Abstract: An augmented reality positioning method and apparatus for location-based service LBS, comprising: a first terminal obtains image information captured by a camera, and receives AR information transmitted by a server; the AR information is generated according to location information of a second terminal; the first terminal displays the image information drawn with the AR information. The apparatus avoids the following drawbacks in the prior art: location inaccuracy; when the terminals are close to each other, positioning cannot be performed on the interfaces of the terminals; if the environment is complicated, it is difficult for the user to quickly perform accurate and direct judgment, and even impossible to obtain more accurate mutual suggestive location information.

Abstract: The present application provides a method and an apparatus for three-dimensional object pose estimation, a device and a storage medium. The method includes: calculating a graph of a previous frame and a graph of a current frame for a target three-dimensional object; performing a matching calculation on the graph of the previous frame and the graph of the current frame using a graph matching algorithm to obtain a vertex correspondence relationship between the graph of the previous frame and the graph of the current frame; calculating a pose of the target three-dimensional object in the current frame according to the vertex correspondence relationship, a pose of the target three-dimensional object in the previous frame and a PnP algorithm. The matching accuracy of feature points is effectively improved, and thereby the accuracy of three-dimensional object pose estimation is improved.

Abstract: A monocular vision tracking method, apparatus, and a non-volatile computer-readable storage medium are provided. The method includes: acquiring a first camera pose by using a wireless tracker; capturing calibration board images by using a camera, and selecting a set of images from the captured calibration board images according to image sharpness and camera pose difference; calculating a second camera pose in the camera calibration algorithm according to the selected set of images; obtaining a conversion parameter between the first camera pose and the second camera pose; and converting a first capturing pose into a second capturing pose by means of the conversion parameter when a scenario is captured, wherein the first capturing pose is acquired by the wireless tracker and the second capturing pose corresponds to a pose of the camera.

Abstract: The present disclosure provides a method, an apparatus, a device for evaluating image tracking effectiveness and a readable storage medium. The method includes: extracting feature points from a target image according to a predefined algorithm; determining first texture information for the target image according to the feature points; processing the target image according to a predefined processing policy to derive a contrast image, and determining second texture information for the target image according to the contrast image; and rating the target image according to the first texture information and the second texture information. In the solution provide by the present disclosure, the tracking effectiveness for the target image can be known without having to place the target image into any actual product, nor having to wait until the product has been finalized before the target image tracking effectiveness is determined. Moreover, efficiency can be enhanced when evaluating image tracking effectiveness.

Abstract: A monocular vision tracking method, apparatus and a non-volatile computer-readable storage medium are provided. The method includes: acquiring a first camera pose by using a wireless tracker; capturing calibration board images by using a camera, and calculating a second camera pose according to the captured calibration board images; obtaining a conversion parameter between the first camera pose and the second camera pose; and converting a first capturing pose into a second capturing pose by means of the conversion parameter when a scenario is captured, wherein the first capturing pose is acquired by the wireless tracker and the second capturing pose corresponds to a pose of the camera; wherein a relative position between the wireless tracker and the camera remains unchanged, in processes of acquiring the first camera pose, capturing the calibration board images and capturing the scenario.

Abstract: A method for determining a pose of a camera is provided, the method includes: S101, acquiring an image of a marker; S102, estimating a first pose of the camera according to the image of the marker by a characteristic point method; S103, estimating a second pose of the camera according to the image of the marker by a direct method; and S104, determining the pose of the camera based on the first pose and the second pose.