Abstract: A sweeper, a server, a sweeper control method and a sweeper control system are disclosed by the present application, which belong to the technical field of smart home. The sweeper has: a main control module, and a detection module, a 5G communication module, a movement module and a cleaning module each connected to the main control module; wherein the main control module sends indoor data detected by the detection module to a server through the 5G communication module, and controls at least one of the movement module and the cleaning module according to a first instruction returned from the server. The sweeper of the present disclosure is capable of directly communicating with the server through the 5G network. On one hand, a large amount of complicated calculation may be performed in the server; on the other hand, the problem of inaccurate control of the sweeper is effectively avoided.

Abstract: A system comprises a first five-level inverter connected between a dc power source and an ac grid, a second five-level inverter connected between the dc power source and the ac grid and a third five-level inverter connected between the dc power source and the ac grid, wherein each five-level inverter comprises a first boost apparatus and a second boost apparatus.

Abstract: A system comprises a five-level rectifier configured to be connected with an ac power source, wherein the five-level rectifier comprises a first boost apparatus and a first buck apparatus configured to operate in a first half cycle of the ac power source, and a second boost apparatus and a second buck apparatus configured to operate in a second half cycle of the ac power source and a five-level inverter connected to the five-level rectifier.

Abstract: Systems and methods are provided for constructing a physical system. Characteristic data associated with a physical system is received. A model of the physical system is built based on the characteristic data. A nonlinear transient simulation of the physical system is performed using the model, where the simulation is performed over a plurality of time intervals. The simulation includes segmenting the plurality of time intervals into groups of time intervals, each group containing multiple time intervals, transmitting data associated with each group of time intervals to a different solving unit, and solving each of the groups of time intervals in parallel using the different solving units. A physical characteristic is determined based on results of the simulation, where the physical system is built or modified based on the simulation-determined physical characteristic.

Abstract: A vacuum cleaner includes a chassis, a driving wheel support provided with at least two first cooperation parts, a driving wheel having an adjustable height relative to the chassis, and being rotatable relative to a hood. The vacuum cleaner further includes the hood being provided with at least two second cooperation parts, and an elastic member. The first cooperation parts or the second cooperation parts are in the form of long track portions, the remainders are in the form of sliding portions capable of moving along the track portions, and lengths of the at least two track portions extend along directions not parallel to each other.

Abstract: Visibly transparent photovoltaic devices are disclosed, such as those are transparent to visible light but absorb near-infrared light and/or ultraviolet light. The photovoltaic devices make use of transparent electrodes and near-infrared absorbing and/or ultraviolet absorbing visibly transparent photoactive compounds, which may be useful as photoactive materials, optical materials, and/or buffer materials.

Abstract: Visibly transparent photovoltaic devices are disclosed, such as those are transparent to visible light but absorb near-infrared light and/or ultraviolet light. The photovoltaic devices make use of transparent electrodes and near-infrared absorbing visibly transparent photoactive compounds, optical materials, and/or buffer materials.

Abstract: Visibly transparent photovoltaic devices are disclosed, such as those are transparent to visible light but absorb near-infrared light and/or ultraviolet light. The photovoltaic devices make use of transparent electrodes and near-infrared absorbing visibly transparent photoactive compounds, optical materials, and/or buffer materials.

Abstract: Materials, methods and system for transparent photovoltaic devices are disclosed, such as those are transparent to visible light but absorb near-infrared light and/or ultraviolet light. The photovoltaic devices make use of transparent electrodes and visibly transparent UV acceptor molecules and structurally related visibly transparent photoactive compounds, which may be useful as photoactive materials, optical materials, and/or buffer materials.

Abstract: Visibly transparent photovoltaic devices are disclosed, such as those are transparent to visible light but absorb near-infrared light and/or ultraviolet light. The photovoltaic devices make use of transparent electrodes and near-infrared absorbing visibly transparent photoactive compounds, optical materials, and/or buffer materials.

Abstract: Visibly transparent photovoltaic devices are disclosed, such as those are transparent to visible light but absorb near-infrared light and/or ultraviolet light. The photovoltaic devices make use of transparent electrodes and near-infrared absorbing visibly transparent photoactive compounds, optical materials, and/or buffer materials.

Abstract: A method for initializing a media includes: obtaining an access point corresponding to a media equipment in a network sharing model; performing a network connection with the media equipment via the access point, and sending paring information to the media equipment via the network connection; accessing to network environment corresponding to the paring information, and paring a control terminal equipment with the media equipment in the network environment. A system includes: an obtaining module, configured to obtain an access point corresponding to a media equipment in a network sharing model; an access processing module, configured to perform a network connection with the media equipment via the access point, and send paring information to the media equipment via the network connection; a paring module, configured to access to network environment corresponding to the paring information, and pair control terminal equipment with media equipment in the network environment.

Abstract: The present application is applicable to the field of network technologies, and provides method and apparatus for playlist synchronization, where the method includes: detecting a user operation on a playlist of multimedia documents at a first terminal; generating an operation code according to the user operation on the playlist, the operation code including an identifier of the playlist; extracting identification information, the identification information including a user identifier and a globally unique identifier (GUID) of the first terminal; and sending the operation code and the identification information to the server, wherein the server is configured to identify a second terminal according to the operation code and the identification information and send the operation code to the second terminal such that the second terminal can perform a synchronization operation to a playlist of multimedia documents at the second terminal according to the operation code.

Abstract: A system comprises a five-level rectifier configured to be connected with an ac power source, wherein the five-level rectifier comprises a first boost apparatus and a first buck apparatus configured to operate in a first half cycle of the ac power source, and a second boost apparatus and a second buck apparatus configured to operate in a second half cycle of the ac power source and a five-level inverter connected to the five-level rectifier.

Abstract: A method for improving a Distance Measure Equipment (DME) interference resisting capability of a Long Term Evolution (LTE) system are described in the present disclosure; at an LTE User Equipment (UE) side, the method includes that: a symbol level DME interference result is obtained, and a scheduling message is sent according to the obtained symbol level DME interference result or according to the obtained symbol level DME interference result and a Physical Downlink Shared Channel (PDSCH) scheduling situation of a current subframe; at an LTE evolved Node B (eNB) side, the method includes that: the received scheduling message is detected, and a subframe is scheduled according to the received scheduling message. The present disclosure also discloses a UE, an eNB and two computer storage media for improving the DME interference resisting capability of the LTE system.

Abstract: A Base Transceiver Stations (BTS) method includes managing mobile devices in range using temporary identifiers temporarily assigned to each of the mobile devices; receiving a group call grant with a list of required mobile devices for a group call; defining a representation for the required mobile devices based on the required mobile devices' respective temporary identifiers; and broadcasting the group call grant with the representation, wherein the mobile devices utilize the representation to determine if they are required mobile devices for the group call. A mobile device and a group call server are also disclosed.

Abstract: An inverter comprises a first boost apparatus having an input coupled to a positive dc bus, a second boost apparatus having an input coupled to a negative dc bus, a first switch coupled to an input of an L-C filter and the first boost apparatus, a second switch coupled to the input of the L-C filter and the second boost apparatus, a third switch coupled between the positive dc bus and the first switch, wherein a common node of the first switch and the third switch is directly connected to an output of the first boost apparatus, a fourth switch coupled between the negative dc bus and the second switch, wherein a common node of the fourth switch and the second switch is directly connected to an output of the second boost apparatus and an isolation switch coupled between the input of the L-C filter and ground.

Abstract: A data processing method during a boot procedure of a smart device is provided. The data processing method includes: when a data request is detected during the boot procedure of the smart device, looking up whether a page cache pre-storing a small data file required for booting includes requested data of the data request, the small data file being file having a data amount smaller than a predetermined threshold; when the page cache includes the requested data, determining whether the data request is a data reading request or a data writing request; when the data request is the data reading request, duplicating the requested from the page cache to a system memory according to the data request. A boot time can be reduced through the above method.

Abstract: A Base Transceiver Stations (BTS) method includes managing mobile devices in range using temporary identifiers temporarily assigned to each of the mobile devices; receiving a group call grant with a list of required mobile devices for a group call; defining a representation for the required mobile devices based on the required mobile devices' respective temporary identifiers; and broadcasting the group call grant with the representation, wherein the mobile devices utilize the representation to determine if they are required mobile devices for the group call. A mobile device and a group call server are also disclosed.

Abstract: Systems and methods are provided for constructing a physical system. Characteristic data associated with a physical system is received. A model of the physical system is built based on the characteristic data. A nonlinear transient simulation of the physical system is performed using the model, where the simulation is performed over a plurality of time intervals. The simulation includes segmenting the plurality of time intervals into groups of time intervals, each group containing multiple time intervals, transmitting data associated with each group of time intervals to a different solving unit, and solving each of the groups of time intervals in parallel using the different solving units. A physical characteristic is determined based on results of the simulation, where the physical system is built or modified based on the simulation-determined physical characteristic.