92results about How to "Improve sending and receiving efficiency" patented technology

Embodiments of the invention disclose a DPDK-based message processing method and computer equipment, relate to the technical field of computers, and aim at solving the problem of network card universality caused by the reason that kernel modes are required to support network cards with specific drives when user mode spaces adopt a DPDK manner or the problem that the message reception / transmissionefficiency of kernel mode spaces is relatively low as network cards adopt common drives. The method is applied in the computer equipment. The computer equipment is installed with an operation system,wherein the operation system comprises a user mode space and a kernel mode space; the user mode space is provided with a data plane development kit DPDK reception / transmission interface; the kernel mode space is provided with a network card reception / transmission module; and a queue is arranged between the DPDK reception / transmission interface and the network card reception / transmission module. The method comprises the step of transmitting messages to network cards or receiving messages from the network cards by the DPDK reception / transmission interface and the network card reception / transmission module through queue transmission. The method is applied in the process of receiving messages from network cards or transmitting messages to the network cards by the computer equipment.

The invention discloses a transmission method and a transmission device for the continuity check of messages, which are applied to a communication system comprising a line card and a main control board. The method comprises the following steps: the main control board is provided with a protocol processing card, wherein the protocol processing card is used to process the continuity check of the messages; and a switching chip of the main control board sends the messages to the protocol processing card under the condition of receiving the messages from the line card. The transmission method and the transmission device for the continuity check of the messages improve the receiving and sending efficiency of the messages.

The invention relates to the technical field of logistics, in particular to an express delivery box, an express delivery box recycling system, an express delivery system and an express delivery method. The express delivery box comprises a box bottom, a box body, a box cover and a coded lock, wherein the box body surrounds the box bottom and can be folded, the box cover covers the box body, and the box cover and the box body can be fixedly combined in a covering manner through the coded lock. The box body is detachably connected with the box cover and the box bottom, and after the box body is separated from the box cover and the box bottom, the box body can be folded into a plane structure; and the box cover and / or the box body are / is provided with identification codes marking the identity information of the express delivery box, and after a user terminal scans the recognition codes, the identity information of the express delivery box can be obtained from a terminal server, and the identity information comprises a password through which the coded lock can be opened. According to the express delivery box, the stealing risk that an express delivery packet is manually taken apart and glued again is avoided, and environment pollution and resource waste caused by usage of plastic adhesive tape are reduced. The identification codes are used for replacing an express delivery bill, the express delivery receiving and dispatching efficiency is improved, and information disclosure of users is avoided.

The invention discloses a transmission method used for bidirectional receiving / sending and detecting message and a device thereof, which is applied to a communication system which comprises a line card and a main control board; wherein, the method comprises the steps as follows: the main control board is provided with a protocol processing card; wherein, the protocol processing card is used for processing the bidirectional receiving / sending and detecting message; when the message of the line card is received, a switch chip of the main control board sends the message to the protocol processing card. The method and the device reduce the dissipation of the resource.

The invention discloses a double-feed type circularly polarized millimeter wave array antenna system which comprises a substrate, a millimeter wave array antenna arranged on the substrate and a first feeding unit and a second feeding unit connected with the millimeter wave array antenna, wherein the millimeter wave array antenna comprises a plurality of rectangular metallic pasters in square array distribution, the rectangular metallic pasters are connected through bar-shaped metallic strips, and the first feeding unit and the second feeding unit are positioned on the adjacent edges of the millimeter wave array antenna and are mutually perpendicular to each other. The double-feed type circularly polarized millimeter wave array antenna system can radiate circular polarized wave and electromagnetic wave, generates good wave beam forming, improves transmit-receive efficiency, and reduces polarization loss.

The invention provides an antenna assembly, which comprises a carrier, an antenna and a metal sheet body, wherein the antenna comprises a radiator; the metal sheet body is arranged on the carrier; the radiator is suspended above the metal sheet body; the metal sheet body is provided with a groove; and the length of a current path formed on the groove is in a certain proportion to the wavelength of a signal received and transmitted by the antenna, so that resonance is generated between the metal sheet body and the radiator. The antenna assembly is simple in structure, and the frequency width of the antenna can be increased effectively.

The invention relates to a magnetic isolation data input-output module based on ARM self-adaptive direction control. The module comprises an ARM microcontroller, a self-adaptive control magnetic isolation RS-485 receiving-transmitting reversing circuit, a magnetic isolation input-output free conversion circuit and a starting mode selection circuit, the self-adaptive control magnetic isolation RS-485 receiving-transmitting reversing circuit, the magnetic isolation input-output free conversion circuit and the starting mode selection circuit are connected with the ARM microcontroller respectively, the self-adaptive control magnetic isolation RS-485 receiving-transmitting reversing circuit comprises a chip ADuM2483 and a triode collector, two ADuM1400 chips of the magnetic isolation input-output free conversion circuit totally have 8 input-output channels, a three-pin jumper wire is added at the input-output end of each input-output channel, and the starting mode selection circuit comprises a resistor R18, a resistor R19 and a two-pin jumper wire. By the magnetic isolation data input-output module based on ARM self-adaptive direction control, data transceiving efficiency is improved, stability and interference resistance are high, and two methods for updating system firmware by a special programmer and a serial port are provided.

The invention relates to a software defined on-board network forwarding strategy consistency updating method. A controller is used to issue a forwarding strategy to a vehicle set used for transmitting messages. When the forwarding strategy is required to be updated, the controller is used to update the forwarding strategy of every vehicle in a data forwarding link by using a software defined network consistency algorithm, and therefore a problem of inconsistent forwarding strategies is solved effectively, and therefore data packet transceiving efficiency is improved at the same time.

When [alpha] defines an angle at which a crack (32b) develops with respect to a reference line (B) that orthogonally intersects a radial direction of a tooth (32) and a tooth shoulder (32a), a phasedarray probe (4) is preliminarily installed at a position on an outer circumferential surface of a retaining ring (35) in a direction that is estimated to be orthogonal to the crack development angle [alpha], and then a sector scan of an ultrasonic beam emitted from the phased array probe (4) is carried out so as to check whether or not there is a crack (32b) in the tooth shoulder (32a).

The invention discloses a water-mediated dielectric antenna and a model establishment method thereof. The water-mediated dielectric antenna includes a water cooling and circulation structure, a supporting frame, an L-shaped probe, a grounding layer, a dielectric layer and a processor; water in the water cooling and circulation structure, replacing a metal layer in a traditional patch antenna, serves as a radiating medium; and air is adopted as a substrate, so that a wireless interface of any frequency to be achieved by changing the height of an air layer and changing the size of the water cooling and circulation structure. The invention also discloses a method for establishing the model of the dielectric antenna. According to the method, the model of the dielectric antenna can be established according to actual working requirements, so that the specific numerical values of the size parameters of the dielectric antenna can be obtained, and therefore, modeling and testing time before actual production can be saved.