Abstract: This application provides techniques comprising S1: establishing a queue for accommodating m file descriptors for creating n1 first access request data packets; S2: creating an ith file descriptor in the queue, sending an ith first access request data packet by using the ith file descriptor, and monitoring a source port recorded by the ith file descriptor; S3: at every first preset time interval t1, enabling i to automatically increase by 1, continuing to perform operation S2, and setting preset monitoring time T for each source port, where T=t1*m; and S4: ending monitoring of an (i?m)th source port and destroying a corresponding file descriptor while creating an ith file descriptor in the queue when m*j<i?m*(j+1), and stopping monitoring of other source ports in response to detecting that a first port receives a response data packet, where the first port is any source port in a monitored state.

Abstract: An antenna and a base station, where the antenna includes: a reflection plate, a radome, a heat sink, a radiating element, and a transceiver. The reflection plate has a first surface and a second surface opposite to each other, the radome is disposed on the first surface of the reflection plate, and the radome and the first surface form an enclosed first accommodating space. The radiating element is disposed in the first accommodating space, so that the first surface of the reflection plate integrates a radome installation function. The heat sink is fastened to the second surface of the reflection plate, and the heat sink and the second surface form an enclosed electromagnetic shielding space. The transceiver is located in the electromagnetic shielding space, so that the second surface of the reflection plate has an electromagnetic shielding function.

Abstract: This application provides techniques comprising creating a main thread and at least two task threads; determining, by the main thread, a target task thread based on a data packet corresponding to a data transmission task in response to detecting the data transmission task associated with a client device, and sending the data packet to the target task thread, where the target task thread is any one of the at least two task threads; and receiving, by the target task thread, the data packet sent by the main thread, determining, based on the data packet, a first file descriptor corresponding to the client device, and communicating with the client device by using the first file descriptor to perform data transmission.

Abstract: Disclosed is a photovoltaic array structure having low line loss. The photovoltaic array structure includes several photovoltaic modules as photovoltaic array units, where each photovoltaic module includes one photovoltaic cell string or a plurality of photovoltaic cell strings distributed row by row or column by column and connected in series and/or in parallel, and the photovoltaic module includes a long side and a short side, a first end edge junction box and a second end edge junction box being arranged on light-facing surfaces or surfaces facing away from light at two ends along a center line of the long side of the photovoltaic module respectively, and being located on the same side of the long side of the photovoltaic module. The present invention can obviously shorten a thread of a direct current cable in the photovoltaic array structure and reduce line loss inside the photovoltaic array structure.