Abstract: A detection method and a device based on a laser radar, and a computer readable storage medium are disclosed. The detection method includes: obtaining scanning data of the laser radar; performing an algorithm splitting on a feature algorithm for detection based on the scanning data to obtain at least one sub-algorithm capable of parallel processing in the feature algorithm; and performing a heterogeneous acceleration for the at least one sub-algorithm to process the scanning data and to obtain a processing result; and obtaining a detected position of an obstacle and a detected drivable area based on the processing result.

Abstract: A pressing plate structure includes a frame and a pressing block unit. The pressing block unit includes a first crimping portion and a second crimping portion fixedly connected to each other. The first crimping portion is movably disposed on the frame in a first direction to approach or leave an electrode assembly. The second crimping portion protrudes downward from the first crimping portion in the first direction. The second crimping portion is provided with a welding hole extending in the first direction. The second crimping portion is capable of being crimped onto a tab of the electrode assembly, and the welding hole exposes part of the tab.

Abstract: The present disclosure discloses an earphone. The earphone may include a hook-shaped component, a connecting component, and a holding component. When the earphone is in a wearing state, the hook-shaped component may be configured to hang between a rear side of an ear of a user and a head of the user. The holding component may be configured to contact a front side of the ear. The connecting component may be configured to connect the hook-shaped component and the holding component and extend from the head to an outside of the head to cooperate with the hook-shaped component to provide the holding component with a pressing force on the front side of the ear.

Abstract: An open-ear earphone includes a housing, a chamber is provided inside the housing, a speaker is provided inside the chamber and divides the chamber into a front chamber and a rear chamber. The housing is provided with a first sound hole and a second sound hole. The front chamber is communicated to the outside through the first sound hole, and the rear chamber is communicated to the outside through the second sound hole. The rear chamber includes a first volume down chamber and a second volume down chamber communicated to the first volume down chamber, and the first volume down chamber is located between the speaker and the second volume down chamber. The sound wave in backward motion generated by the speaker is transmitted to the outside from the second sound hole after being reduced by the first volume down chamber and the second volume down chamber.

Abstract: An open-ear Bluetooth® earphone includes an earphone body and a support frame. The support frame is configured to be plugged into a cavum concha of a wearer. The earphone body is provided with an audio source, and the support frame is installed on the earphone body and corresponds to the audio source. When in use, the support frame is configured to be firmly plugged into the cavum concha of the wearer to allow the earphone body to be worn on the ear of the wearer. The audio source corresponds to the ear canal of the wearer through the support frame, so that the sound emitted from the audio source is transmitted into the ear canal through the support frame. The audio source is directly opposite of the ear canal through the support frame to shorten the distance between the audio source and the ear canal.

Abstract: A welding clamp for use in battery manufacturing is described. The welding clamp includes a plurality of clamping portions used to fit and clamp a case of a battery cell, the clamping portion includes a body portion and a connecting portion, and the connecting portion is detachably connected to the body portion; and a wear-resistant layer is connected to a surface of the connecting portion facing the case. In the process of welding the case and the end cover of the battery cell, through fitting and clamping the case by the clamping portion of the welding clamp, the clamping portion can play a position-limit role to the wall of the case to relieve the deformation of the case during the welding process, thereby improving the welding quality of the case and the end cover and thus improving the production quality of the battery cell.

Abstract: A welding device includes a laser welding head and a cooling mechanism. The laser welding head is provided with a channel for laser to pass through, and the cooling device is arranged on a side wall of the laser welding head and configured to cool the laser welding head.

Abstract: Lithium-sulfur (Li—S) batteries using unconventional-phase transition metal dichalcogenides (TMDs), such as 1T?-WS2, as the functional layer on the separator. The unique atomic structure of 1T?-WS2 facilitates the strong immobilization and excellent catalytic ability in the conversion of polysulfide intermediates during cycling. Furthermore, the self-assembling of 1T?-WS2 greatly decreases the internal porosity, minimizing the uptake of electrolyte, which can further guarantee the performance of the battery under lean electrolyte conditions. As a result, a cell based on the 1T?-WS2 shows improved performances under high sulfur loading and lean electrolyte conditions. A cell with 12 mg cm?2 mass loading of S with only 25% oversized Li metal anode can deliver specific energy of at least 400 Wh kg?1 and 820 Wh L?1, which is among the best of reported Li—S batteries.

Abstract: The present disclosure discloses an earphone. The earphone may include a hook-shaped component, a connecting component, and a holding component. When the earphone is in a wearing state, the hook-shaped component may be configured to hang between a rear side of an ear of a user and a head of the user. The holding component may be configured to contact a front side of the ear. The connecting component may be configured to connect the hook-shaped component and the holding component and extend from the head to an outside of the head to cooperate with the hook-shaped component to provide the holding component with a pressing force on the front side of the ear.

Abstract: High-availability cluster data protection is described. A computer executes a framework and a task dispatcher. The framework disables caching of internet protocol addresses queried from a network interface configuration of the computer. The task dispatcher receives a request to execute a data protection task, and determines whether the request is for a current cluster node. If the request is not for a current cluster node, the task dispatcher determines whether the request is for a logical host. If the request is for the logical host, the task dispatcher queries the network interface configuration to determine whether the internet protocol address of the logical host is locally available. If the internet protocol address of the logical host is locally available, the task dispatcher directs the request locally. If the internet protocol address of the logical host is not locally available, the task dispatcher directs the request to a remote node.

Abstract: The present invention provides an electric power demand response system and method. The system includes an agent group including at least one agent, a total load calculation module and an electricity price calculation module; wherein each agent is adapted to receive electricity price data output by the electricity price calculation module and simulate electricity consumption behavior of a user under the effect of the electricity price, and output load data of the user; the total load calculation module is adapted to receive load data output by all the agents in the agent group and thereby calculate a total load of the agent group; and the electricity price calculation module is adapted to receive the total load of the agent group calculated by the total load calculation module and receive policy data, and thereby calculate a proper electricity price data.