Abstract: An apparatus has a current spreading base with an n-contact. The current spreading base has a small n-type resistivity to promote lateral electron flow. A current spreading cap is on top of the current spreading base. The current spreading cap has a large n-type resistivity to suppress vertical electron flow and promote lateral electron flow. An active region is on top of the current spreading cap. A p-type structure is on top of the active region with a p-contact. Sheet resistance of the current spreading base is experimentally established, the half width xF of a mesa is selected and the current spreading cap thickness hc is selected to collectively promote uniform current injection into the active region.

Abstract: A substrate structure includes an AlN template layer formed on a substrate. Depressions sealed by the AlN template layer are formed on a surface of the substrate at an interface between the substrate and the AlN template layer, the sealed depressions contain discrete depressions and depression networks and have a lateral size in the range of 20-100 nm, a vertical dimension in the range of 20-100 nm, and a density in the range of 1.0×109-2.0×1010 cm?2. The substrate structure is used for light-emitting diodes with improved optical output power efficiency.

Abstract: A movable battery replacing platform includes a travel-driving portion used for driving the movable battery replacing platform to move on the ground; a lifting portion mounted on the travel-driving portion, for lifting a battery during the replacement of the battery; and a battery mounting portion mounted on the top of the lifting portion, for placing a battery to be replaced or a replaced battery. The battery mounting porting is provided with a battery replacing device. The device can use an unlocking device to unlock a battery locked on the bottom of an electric vehicle, automatically aligning an unlocking point of a battery locking mechanism and realizing automatic unlocking in the movement. The angle of an upper board relative to the battery unlocking position can be adjusted by a movement actuating device, so that the unlocking point of the battery can automatically fit where the movable battery replacing platform remains still.

Abstract: Disclosed is an unlocking device, battery replacing platform and movable battery replacing platform. The unlocking device comprises: a guide rail; a movable seat mounted on the guide rail; an unlocking ejector rod vertically mounted on the movable seat; and a driving member to drive the movable seat to move horizontally along a plane of the guide rail, the driving member is a driving push rod; the movable seat mounted on the guide rail includes a fixing cylinder fixed vertically mounted direct on the movable seat, and the unlocking ejector rod is movably mounted inside of the fixing cylinder, and a second spring is provided in the fixing cylinder, the second spring is configured to apply an upward thrust to the unlocking ejector rod. The unlocking ejector rod can be controlled to move on the predetermined rail, and the battery locking mechanism on the electric vehicle can be automatically unlocked.

Abstract: Disclosed is a battery swapping system, comprising a battery swapping device, a signal transmission unit, a position sensor, and a detection section. The battery swapping device comprises a master control unit and a battery pack disassembly and assembly unit. The battery pack disassembly and assembly unit is used for clamping the battery pack, the master control unit is used for controlling the battery pack disassembly and assembly unit to move along a preset path. The position sensor is used for generating a stopping instruction upon sensing of the detection section, sending the stopping instruction to the master control unit which is used for stopping moving the battery pack disassembly and assembly unit according to the stopping instruction. According to the present invention, whether a battery pack is mounted in place can be accurately detected, the accuracy and safety of battery pack swapping is ensured and the costs are low.

Abstract: A locking method and an unlocking method are provided. The locking method is used to mount a battery to a fixing seat of an electric vehicle by a locking device. The locking device includes: a lock base including a lock body, a surface of the lock body being provided with a lock groove recessed towards the interior of the lock body, the lock body being internally provided with a lock tongue groove and a lock tongue movably mounted in the lock tongue groove, and the lock tongue groove being in connection with the lock groove; and a lock shaft including a shaft rod configured to be inserted into the lock groove of the lock base to perform unlocking and locking.

Abstract: A multi-view clustering method and system based on matrix decomposition and multi-partition alignment are provided.

Abstract: An embodiment of this application provides a method and apparatus for testing control software, and a computer-readable storage medium to reduce the time consumed in the simulation-based debugging and enhance efficiency. The method may include obtaining test information of a plurality of fault signals; and injecting, based on the test information of the plurality of fault signals, the plurality of fault signals into a simulation environment in sequence to obtain test results of the plurality of fault signals handled by the control software, where the simulation environment may be a simulation environment of a control object of the control software.

Abstract: A citation network graph representation learning system and method based on multi-view contrastive learning is provided. The citation network graph representation learning system involved in the present application comprises: a sample construction module, which is configured to construct a corresponding negative sample based on an original graph; a graph enhancement module, which is configured to obtain a positive sample graph and a negative sample graph; a fusion module, which is configured to obtain a consensus representation of the positive sample graph and the negative sample graph by means of a cross view concentration fusion layer; a mutual information estimation module, which is configured to compare learning representations of positive sample pairs and negative sample pairs by means of a discriminator; and a hard sample mining module, which is configured to represent the consistency between the negative sample pairs according to a pre-calculated affinity vector, and select and reserve nodes.

Abstract: A vehicle includes an engine, a transmission, and a controller. The engine is configured to generate power. The transmission is configured to transfer power from the engine to at least one drive wheel to propel the vehicle. The controller is programmed to, in response to a command to shift the transmission and a corresponding command to decrease a torque of the engine to less than a threshold corresponding to a spark retard limit during the shift, (i) increase the pressure of an oncoming clutch to engage the oncoming clutch, (ii) retard an engine spark at the spark retard limit to reduce the torque of the engine to the threshold during the engagement of the oncoming clutch, and (iii) shutdown at least one cylinder of the engine to further reduce the torque of the engine to less than the threshold during the engagement of the oncoming clutch.

Abstract: Provided are a battery swapping control method and system, an electronic device, and a computer readable storage medium, the battery swapping control method being used for a battery swapping device (2) to remove a battery pack from the bottom of an electric car (9), the battery swapping device (2) having a liftable battery swapping platform, and the battery swapping control method comprising: controlling the battery swapping device (2) to move to a preset battery swapping position beneath the electric car (9); controlling the battery swapping platform to rise to a preset removal height; and controlling the battery swapping device (2) to remove the battery pack from the bottom of the electric car (9), thereby the entire procedure of the battery swapping process is controlled, increasing battery swapping efficiency and reducing the safety hazards in the battery swapping process.

Abstract: An UV or DUV light-emitting diode package includes: a foundation; a first metal layer, a second metal layer, and third metal layer formed on a top surface of the foundation, wherein the first metal layer and the second metal layer are electrically isolated by a first gap, the third metal layer surrounds the first and second metal layers and is electrically isolated from the first and second metal layers by a second gap; a lens attached to the top surface of the foundation, wherein a cavity is formed between the foundation and the lens; a chip disposed in the cavity, wherein an anode of the chip is electrically connected to the first metal layer and a cathode of the chip is electrically connected to the second metal layer; and a fluid encapsulate, wherein the cavity is fully or partially filled with the fluid encapsulate.

Abstract: A battery pack locking mechanism, used for unlocking or locking a battery pack on the bracket, and comprising a fixing portion. The fixing portion has a locking space. When the battery pack is placed relative to the bracket, the locking mechanism is used for locking a connecting portion on the battery pack in the locking space. On one side of the locking space, the locking mechanism is provided with an opening facing towards the battery pack and entering the bracket along the horizontal direction, so that the connecting portion enters the opening along the horizontal direction and moves into the locking space. According to the locking mechanism, effectively reducing the complexity of the process and the step of mounting and fixing the battery pack on the bracket. Also provided are a bracket assembly, an electric vehicle, and a battery pack locking method.

Abstract: Disclosed are an unlocking apparatus, a swapping device comprising same, and an unlocking control method. The unlocking apparatus is used for unlocking or locking a battery box in a battery bracket on an electric vehicle, and comprises a drive mechanism, an unlocking component, and a transmission member. The drive mechanism drives the unlocking component to move by means of the transmission member, so that the unlocking component drives a locking mechanism on the battery bracket to move to unlock or lock the battery box; the unlocking component is axially rotatable relative to the transmission member to adapt to the angle deviation between the unlocking component and the standard unlocking position on the battery bracket. The swapping device comprises the unlocking apparatus. In this way, even if there is a circumferential deviation, the unlocking component is ensured to be accurately aligned and connected.

Abstract: Disclosed are a battery swapping device, a battery swapping station and a battery swapping method. The battery swapping device comprises a turnover mechanism for turning a used battery pack taken out of an electric vehicle from a first position to a second position in a first direction; or turning a fresh battery pack taken out of a battery charging bin from a third position to a fourth position in a second direction, the first direction being opposite to the second direction. The present invention occupies less space for turnover, and can be significantly reduced with respect to a plane-rotating battery swapping device in structure. Thus, it can complete picking and placing of larger battery packs with a smaller space and structure. Therefore, battery swapping with a single large battery pack can be realized in a smaller area, thereby reducing the cost of the battery pack and facilitating promotion.

Abstract: A patterned substrate for light emitting diode includes a plurality of nodes and links protruding from a base plane of the substrate and base areas on the substrate, each pair of adjacent nodes is connected by a corresponding link, respectively. The nodes and links also can be concave nodes and concave links cutting into a surface of the substrate, each pair of adjacent concave nodes is connected by a corresponding concave link, respectively.

Abstract: Disclosed is a battery swapping station, comprising a vehicle carrying platform, for parking an electric vehicle so as to swap battery packs; a charging device, which is provided with a plurality of charging bins for having battery packs placed therein, wherein electric connectors are arranged in the charging bins for being electrically connected to the battery packs located in the charging bins, so as to carry out charging; and a battery swapping device, for taking, placing and transferring batteries between the electric vehicle and the charging bin, the battery swapping device being provided with a overturning mechanism for vertically overturning a battery pack taken out from the charging bin or the electric vehicle. By means of the present invention, taking and placing of a large battery pack in a charging station within a small space and structure can be completed.

Abstract: Disclosed are a lock mechanism for a battery pack, a bracket assembly, a battery pack, an electric vehicle and a lock method for a battery pack. The lock mechanism comprises a first unit and a second unit, which are respectively arranged on a side wall of the bracket and a side wall of the battery pack. The first unit comprises a lock seat, which is provided with a locking space; the second unit comprises an extension end; when the battery pack is placed with respect to the bracket, the locking space bears and locks the extension end; and the lock mechanism is provided, above the locking space, with an opening, which faces the battery pack and approaches the battery pack in a horizontal direction, such that the extension end enters the opening in a horizontal direction facing the side wall of the bracket and falls into the locking space.

Abstract: An integrated semiconductor device includes a substrate, semiconductor circuit layers, a first insulating layer, a second insulating layer, and an interconnection layer. The semiconductor circuit layers are disposed above the substrate. The semiconductor circuit layers have device portions and isolating portions, and the isolating portions are located among the device portions. The first insulating layer is disposed on the semiconductor circuit layers, and the second insulating layer is disposed on the first insulating layer, and the interconnection layer is disposed on the semiconductor circuit layers. The interconnection layer penetrates the first and second insulating layers to electrically connect the device portions of the semiconductor circuit layers. The second insulating layer or the first and second insulating layers collectively form one or more isolating structures above the isolating portion of the semiconductor circuit layers.