Abstract: A target object tracking method, a camera, and a computer-readable storage medium are provided. The camera includes a telephoto lens and a wide-angle lens. The camera captures a telephoto image by the telephoto lens, and captures a wide-angle image by the wide-angle lens. When a target object is detected in the wide-angle image, a first zoom magnification of the wide-angle image and a zoom magnification of switching lenses are obtained. The wide-angle image is digitally zoomed according to the first zoom magnification if the first zoom magnification is less than or equal to the zoom magnification of switching lenses. Otherwise, if the first zoom magnification is greater than the zoom magnification of switching lenses, the telephoto image is digitally zoomed to output a tracking image of the target object when the target object is detected in the telephoto image.

Abstract: The invention relates to a positive plate for a lithium battery, preparation method thereof and use in semi-solid state battery. The positive plate for a lithium battery comprises a current collector and an active material layer arranged on a surface of the current collector; and the active material layer comprises a positive electrode active material, a conductive agent, a binder, an oxide solid-state electrolyte and a polymer obtained by in-situ polymerization. The oxide solid-state electrolyte and polymer are evenly distributed in the active material layer; wherein the oxide solid-state electrolyte can effectively improve the safety performance of the positive plate; and the polymer obtained by in situ polymerization can effectively improve the contact between the oxide solid-state electrolyte and the material in the positive plate, thereby reducing the impedance of the positive plate and improving the electrochemical performance of the positive plate.

Abstract: The present application provides an in-situ polymerized solid-state battery with a multilayer electrolyte, which comprises an oxidation-resistant polymer layer, which is formed in-situ on the positive electrode, and also comprises a reduction-resistant polymer layer, which is formed in-situ on the negative electrode. The oxidation-resistant polymer through chemical reaction is preset on the positive electrode during the mixing process. And a monomer or initiator that can form reduction-resistant polymer through chemical reaction is preset on the negative electrode plate during the mixing process.

Abstract: A method and an apparatus for achieving network intercommunication based on neighbor negotiation are disclosed. The method may include: switching a link mode from a first mode to a second mode; sending, to a to-be-connected device, a switching request for switching from the second mode to the first mode; and switching the second mode back to the first mode in response to receiving a response sent by the to-be-connected device, the response being used to indicate that the to-be-connected device is to be switched to the first mode.

Abstract: Embodiments of the present disclosure provide a failure protection method based on a ring protection link, a device, and a system, and nodes in the ring protection link include a forwarding device in an SDN. The method includes: receiving, by a network controller, a high-priority failure message sent by a first node, where the failure message includes information used to indicate a failure; obtaining, according to the failure message, data information about port state changes that are of the nodes and that are caused by the failure; and sending a high-priority switching message to each of the nodes, so that each of the nodes updates a local MAC address table according to the switching message, where the switching message includes the data information about port state changes that are of the nodes and that are caused by the failure.

Abstract: Embodiments of the present disclosure provide a failure protection method based on a ring protection link, a device, and a system, and nodes in the ring protection link include a forwarding device in an SDN. The method includes: receiving, by a network controller, a high-priority failure message sent by a first node, where the failure message includes information used to indicate a failure; obtaining, according to the failure message, data information about port state changes that are of the nodes and that are caused by the failure; and sending a high-priority switching message to each of the nodes, so that each of the nodes updates a local MAC address table according to the switching message, where the switching message includes the data information about port state changes that are of the nodes and that are caused by the failure.