Abstract: The present application discloses an electric vehicle, and an electric heating device and a control system thereof. The electric heating device includes: n resistance heating units, independently electrically connected in parallel with each other; n switches, electrically connected in series with respective resistance heating units for independently controlling power-on or power-off of the respective resistance heating units; and a controller, configured to selectively turn on or turn off any at least one of the n switches according to a working condition of the electric vehicle, wherein n is a natural number equal to or greater than 2.

Abstract: The present application discloses a multi-input multi-output antenna and a system. The multi-input multi-output antenna includes a plurality of stacked oscillator layers. The oscillator layers include a supporting plate and an antenna array disposed on the supporting plate. Each of the oscillator layers is connected by a plurality of connecting members, and a spacing between the oscillator layers is at least 0.9, which is a wavelength of center frequency of the multiple-input multiple-output antenna.

Abstract: The present disclosure relates to a three-dimensional-layout high gain radio-frequency front end apparatus, including an antenna device and a radio-frequency transceiver device. The antenna device includes two or more antenna array layers arranged in layers. The radio-frequency transceiver device includes a filter, a circulator, a receiver and a transmitter. The antenna array layer is connected to a filter. The filter is connected to a circulator by an optical fiber, and the circulator is connected to a receiver and a transmitter respectively by an optical fiber.

Abstract: The present disclosure relates to a high gain radio-frequency front end apparatus, including an antenna device and a radio-frequency transceiver device. The antenna device includes a plurality of antenna array layers arranged in layers. The radio-frequency transceiver device includes a filter, a circulator, a receiver and a transmitter. The antenna array layer is connected to a filter. The filter is connected to a circulator by an optical fiber, and the circulator is connected to a receiver and a transmitter respectively by an optical fiber. Each of the RF transceivers is connected to a corresponding antenna array layer.

Abstract: Embodiments of the present invention include a cache content hit method to ensure that a charging and interception apparatus performs interception and charging on content accessed by a user. The method in the embodiments of the present invention includes: receiving a content request message that carries a content identifier; searching local cache content for content corresponding to the content identifier; and when it is determined that the content corresponding to the content identifier is stored, sending the content to the access network device; forwarding, by the edge cache apparatus to a core cache apparatus after adding a content hit identifier to the content request message, a content request message to which the content hit identifier is added to making the cache control apparatus discarding the content in the response message according to the content hit identifier.

Abstract: Embodiments of the present invention include a cache content hit method to ensure that a charging and interception apparatus performs interception and charging on content accessed by a user. The method in the embodiments of the present invention includes: receiving a content request message that carries a content identifier; searching local cache content for content corresponding to the content identifier; and when it is determined that the content corresponding to the content identifier is stored, sending the content to the access network device; forwarding, by the edge cache apparatus to a core cache apparatus after adding a content hit identifier to the content request message, a content request message to which the content hit identifier is added to making the cache control apparatus discarding the content in the response message according to the content hit identifier.

Abstract: Device of the type comprising a frame partially open on one of the planar surfaces, kept closed by a display module in association with an annular ornamental crown, which carries within infra-red electronic components for touch detection, characterised in that said infrared, touch-detection electronic components consist of an infra-red card, provided along the upper perimeter surface with receiving and emitting LED lamps and with separate guiding means of the infra-red light arranged vertically, said guiding means consisting of a lower guiding frame of the infra-red light and with an upper guiding frame of the infra-red light.

Abstract: The present invention relates to the field of communications, in particular, to a server for solving the problem related to the incompatibility between normal blades and multi-processing blades in a conventional server. The server according to an embodiment of the invention includes a backboard, on which backboard wiring and a first slot are disposed. At least two second slots are further disposed on the backboard. Both a first interface configured to be connected to a normal blade and a second interface configured to be connected to a multi-processing blade are disposed on each of the second slots, the first interface being connected to a corresponding Cluster Switch interface disposed on the first slot via the backboard wiring, and the second interface being interconnected directly via the backboard wiring or being connected to a corresponding Symmetrical Multi-Processing Switch interface disposed on the first slot via the backboard wiring.

Abstract: The present invention relates to the field of communications, in particular, to a server for solving the problem related to the incompatibility between normal blades and multi-processing blades in a conventional server. The server according to an embodiment of the invention includes a backboard, on which backboard wiring and a first slot are disposed. At least two second slots are further disposed on the backboard. Both a first interface configured to be connected to a normal blade and a second interface configured to be connected to a multi-processing blade are disposed on each of the second slots, the first interface being connected to a corresponding Cluster Switch interface disposed on the first slot via the backboard wiring, and the second interface being interconnected directly via the backboard wiring or being connected to a corresponding Symmetrical Multi-Processing Switch interface disposed on the first slot via the backboard wiring.