Abstract: Implementations of the present disclosure relate to link failure detection. In the implementations, an access point (AP) determines a power save mode of each of a plurality of links established between the AP and a station. If at least two links of the plurality of links are in a power save mode, the AP determines a detection time period for detecting signals based on beacon intervals of the at least two links. The AP then transmits detection signals to the station in the at least two links during the detection time period. The AP determines connectivity of the at least two links based on responses to the detection signals received from the station. In this way, all the failed links in power save mode can be efficiently detected, thereby facilitating transmission scheduling between the AP and station.

Abstract: Disclosed are an unblocking apparatus for a furnace discharging pipe and a use method. The unblocking apparatus includes a rail, a rail car that may move along the rail, an unblocking drive mechanism arranged on the rail car, a heat-unblocking component, a cold-unblocking component, and a material receiving component that is used to receive a blocking material in the discharging pipe, and a drive end of the unblocking drive mechanism is detachably connected with one end of the heat-unblocking component and the cold-unblocking component respectively. The present application effectively handles different blockage situations of the furnace discharging pipe by connecting the unblocking drive mechanism with an unblocking rod capable of heat-unblocking and a drilling rod capable of cold-unblocking, thereby two modes of heat-unblocking and cold-unblocking are performed on the furnace discharging pipe; and the discharging pipe may be unblocked by a remote operation.

Abstract: A document generation method includes receiving a first input performed by a user for selecting a type of a to-be-generated document on a photographing preview interface; entering a creation mode for a document of a target type and displaying at least one component of a to-be-generated target document in the creation mode, in response to the first input; receiving a second input performed by a user for adding a picture to the at least one component; capturing a target picture and adding the target picture to the at least one component, in response to the second input; and generating a target document in response to a third input for generating the target document.

Abstract: A method for simulating, grading, and compiling a two-dimensional over-limit vehicle load spectrum, including the following steps: continuously acquiring traffic flow information of various typical roads for a period of time; generating a traffic flow series of each lane, and determining an optimal sample capacity of a traffic flow; analyzing a probability feature of the traffic flow series of each lane; simulating the traffic flow series of all the lanes; generating a two-dimensional over-limit vehicle load spectrum; grading the two-dimensional over-limit vehicle load spectrum; and compiling the two-dimensional over-limit vehicle load spectrum.