88results about How to "Improve the realization effect" patented technology

The invention relates to the technical field of computers, in particular to a virtualized network networking system and a data packet sending method. The virtualized network networking system at leastcomprises a central switch of a spine layer, a client VXLAN switch and a gateway VXLAN switch of a leaf layer, a client connected to the client VXLAN switch and a gateway cluster connected to the gateway VXLAN switch, wherein the gateway cluster at least comprises two gateway devices, the gateway VXLAN switch receives a packaging bag corresponding to the data packet, carries out de-encapsulation,determines a target gateway device from the gateway cluster, and sends the data packet to the target gateway device, so that the target gateway device carries out network address translation, and thus the data packet after network address translation is sent to a target server, the load balancing is realized through the gateway cluster, the data packet encapsulation and the forwarding logic are separated, and the gateway device implementation performance and data packet forwarding efficiency are improved.

The invention discloses a system and a method for realizing OTA upgrade of embedded hardware based on a block chain. The method comprises the following steps: constructing a P2P network topological structure comprising a plurality of service nodes downloaded by firmware; taking one service node as a first block node, and converting other service nodes in the P2P network into one block node on theblock chain one by one through a block chain consensus verification mechanism; storing the latest firmware software on the service node, and calculating the node content by using a Hash algorithm to obtain a Hash value of the service node; wherein the node content comprises feature information of the service node and firmware software stored on the service node; and the intelligent terminal downloads the corresponding hash value from the service node of the P2P network, carries out firmware version security verification according to the hash value, downloads and stores the verified firmware software, and upgrades the firmware software. The safe and credible P2P network topological structure is established by using the block chain technology, and the OTA upgrading reliability and safety ofthe intelligent terminal are improved.

The invention relates to a method for preparing graphene on a copper plating substrate. The method is characterized by comprising the following steps of: preparing the graphical copper plating substrate on a silicon chip; and growing the graphene on the copper plating substrate for 2 to 5 minutes at the temperature of between 800 and 1,000 DEG C by using a normal pressure chemical vapor deposition method, using methane as a carbon source and using argon and hydrogen as carrier gases. A graphical graphene film can be directly prepared by the method, and the substrate can be compatible with an integrated circuit (IC) process; and the manufacturing method is simple and low in cost, and can be used for large-scale manufacture.

The invention discloses a high efficiency vehicle detection method comprising steps of vehicle existing information detection and vehicle moving information detection. More particularly, the vehicle existing information detection comprises the following steps: (11), carrying out statistics on a background image model; (12), calculating an image-background difference graph; (13), carrying out binarization processing on the image-background difference graph; and (14), determining whether there is a vehicle or not. Moreover, the vehicle moving information detection comprises the following steps: (21), carrying out difference on two adjacent frames of images and extracting edge points for the difference image; (22), carrying out statistics on a gradient direction histogram of the edge points of the difference image; and (23), determining whether there is a vehicle in a moving state. According to the invention, the provided vehicle detection method has high detection precision and a good detection effect.

The invention discloses a method of security probability-based power allocation in a millimeter wave system. The method comprises the following steps: S1, an equivalent channel modeling step, whereina millimeter wave channel model is established, and thus a discrete angular domain channel model is obtained; S2, a power allocation strategy defining step, wherein a minimum value of a receiving signal-to-noise ratio of a legal direction is forcibly restricted, an upper boundary of a receiving signal-to-noise ratio of an eavesdropping direction is limited at the same time an allocation strategy of total transmission power is formulated, and an effect that target security probability meets constraints of quality-of-service demand is guaranteed; and S3, a power allocation step, wherein artificial noise beamforming power allocation based on interruption is carried out, and performance evaluation is carried out on a final allocation result. The invention provides the power allocation method with a data protection function, privacy and confidentiality of data in a wireless communication process can be effectively improved, established security probability is achieved, normalized safety throughput is increased, and system complexity is reduced.

The invention provides a forklift efficient energy-saving system with a speed regulating function. The forklift efficient energy-saving system comprises a double-acting motor-power generator, a double-acting pump-motor, a sealing pressure oil tank, a liquid-control oil supplementing valve, a two-way hydraulic lock valve, a jacking oil cylinder, a safety valve, a three-phase bridge type inverter, an energy supply-energy storage device, a control device, and an oil tank, wherein the double-acting pump is connected with the double-acting motor-power generator; the double-acting motor-power generator is connected with the three-phase bridge type inverter; the three-phase bridge type inverter is connected with the energy supply-energy storage device; the control device controls a workings stateof the three-phase bridge type inverter and the energy supply-energy storage device; an oil outlet and an oil sucking hole of the double-acting pump-motor are connected with the liquid-control oil supplementing valve; the liquid-control oil supplementing valve is connected with the two-way hydraulic lock valve; the two-way hydraulic lock valve is connected with a rod cavity and a rodless cavity of the jacking oil cylinder; and the rod cavity and the rodless cavity of the jacking oil cylinder are connected with the safety valve. A potential energy recycling system regulates forklift descendingspeed by controlling rotation speed of the double-acting motor-power generator, eliminates throttling loss of a hydraulic loop, reduces heating of hydraulic oil, improves potential energy recycling efficiency; and moreover, system hardware and software are simple and reliable, and realizable degree is high.

The invention discloses a realization method for a cloud disk. The realization method comprises the following steps: receiving a file request message, and applying a lock service corresponding to the file request message according to the file request message; generating an SCSI commend corresponding to the file request message according to the lock service; receiving file information corresponding to the file request message, which is looked up according to the SCSI commend. The invention further discloses a cloud disk, a server, a cloud storage server, a cloud mapping server and a distributed lock server.

The invention discloses a lightweight hashed password digest generation method. The method comprises the following steps: 1) dividing an input message M into a plurality of 64-bit message blocks, setting a 96-bit state parameter S<j> and initializing the 96-bit state parameter S<j> into an all-zero 96-bit string; 2) sequentially processing the message blocks, transforming the message blocks m<j> onto a high-bit 64 bit of the S<j> in an XOR manner, and taking the S<j> being subjected to the XOR processing as the input of internal replacement IP, wherein j is more than or equal to 0 and less than or equal to i, the internal replacement IP adopts a 18-wheel Feistel structure, and the output of the internal replacement IP is updated S<j>; and 3) taking a high 16 bit of a state S<j> obtained after processing of the last m as the digest of the message M. The method is implemented in one clock cycle, and the operation efficiency of an embedded processor chip is increased.