31results about How to "Large cache capacity" patented technology

The invention discloses an integrative radio wave perspective exploration instrument, and belongs to a geophysical radio wave perspective exploration instrument. The integrative radio wave perspective exploration instrument comprises an emitting module, a receiving module, a man-machine exchange module and a communication module, wherein the emitting module is used for emitting a radio wave signal; the receiving module is used for receiving the radio wave signal; the man-machine exchange module is used for setting the system parameter, displaying and storing data in real time, and transforming the collected signal; the communication module is used for undertaking the task of the communication between the radio wave perspetograph and a microcomputer. By mutually sending signal, the integrative radio wave perspective exploration instrument can realize the underground communication so as to determine whether the measurement work is started. After the measurement is finished, the receiving end becomes the emitting end, the emitting end becomes the receiving end; then the measurement process can be conducted again, the detection is conducted from both parts of a lane, the result is comprehensively analyzed; therefore, the shape of abnormal body can be detected in all rounds. The integrative radio wave perspective exploration instrument is large in buffer memory size, high in integration level, strong in reliability, strong in anti-jamming ability, rapid and exact in collecting process.

The present invention relates to an integral and general-purpose radar clutter acquisition simulation emluator and analog simulation process. The present invention includes an industrial control computer, an acquisition card and an analog simulation card, wherein said acquisition card is used f or acquiring clutter signals of radar to the industrial control computer; said industrial control computer is used for executing a clutter simulation according to the clutter signals acquired by the acquire card, executing a clutter emulation according to the input clutter characteristic parameters and outputting the simulation results to an external processing equipment through the analog simulation card. In accordance with the present invention, the unattached clutter collecting device, clutter analogous instrument and clutter emulation mechanism constitute an unified integer, having the advantages such as high speed, large-capacity, universality, flexibility and expandability. The present invention is also characterized in than the acquired true clutter data can be used to execute a analogue simulation.

The invention discloses a double-layer distributed caching method of a fog wireless access network, which comprises the following steps in turn: dividing the fog network into an F-AP (fog wireless access node) layer and a UE (user equipment) layer; each F-AP Both AP and UE collect file application information from surrounding UEs, and calculate file popularity based on these information; use the knapsack algorithm to find the optimal cache distribution for the UE layer; use the BP algorithm to find the optimal cache distribution for the F-AP layer; The UE determines the UE with which to establish the D2D connection by inquiring whether the surrounding UEs are receiving the file. The present invention implements double-layer caching by introducing D2D connections into the fog network, and adopts a distributed method so that each F-AP and UE only needs to collect local information to make caching decisions. Compared with the traditional caching algorithm, the downloading delay is significantly reduced, and the present invention is kept to complete convergence within ten iterations, the complexity is low, and at the same time, it has higher robustness.

The invention discloses a high speed large capacity data collection system which is based on CPLD and SDRAM. Analog signals are inputted into the signal input port of suited input network circuit(1), the signal output port of the (1) is connected to the signal input port of magnifying and buffering circuit (2), the signal output port of the (2) is connected to the analog signal input port of analog / digital transforming circuit (3), the data output port of the (3) is connected to the data input port of CPLD control unit circuit (4), the time signal input port of the (3) is connected to the time signal output port of the (4), the data output port of the (4) is connected to the data input port of the data input port of interface circuit(5), the data output port (4) is connected to the data input and output ports of (6). The highest sampling frequency is 100MHz, storing capacity is 256MBit, and it has several excellences such as big buffer capacity, expansible, high integrity, high reliability, high antijamming capability and so on, it can be used in high speed testing and controlling system, and image collecting and dealing system.

The invention discloses a three-layer cooperative caching method for a fog wireless access network, comprising: (1) dividing the fog wireless access network into a fog wireless access point layer and a cloud node layer; (2) specifying a user's file request The route forwarded in the network; (3) The fog wireless access point calculates the request arrival rate of each file through the received file request, and calculates the weight of each file in the knapsack algorithm according to the file request arrival rate, and finally uses the knapsack algorithm to solve the problem The optimal cache distribution in the fog wireless access point cluster; (4) The cluster head calculates the request arrival rate of each file through the received file request, and calculates the weight of each file in the knapsack algorithm according to the request arrival rate, and finally adopts the knapsack algorithm Solve the optimal inter-cluster cooperative cache distribution; (5) The cloud node calculates the file arrival rate through the received file request, and calculates the weight of each file in the knapsack algorithm according to the request arrival rate, and finally uses the knapsack algorithm to solve the cloud node layer optimal cache distributed. The present invention can effectively reduce the load of the backhaul link.

The application discloses a cache management method and device, which relate to the technical field of communication networks and can solve the technical problem of poor cache reliability. The device includes a master management unit and at least two slave management units, each slave management unit is used to process a type of message, and the method includes: if the total amount of free cache is less than or equal to a first threshold, the master management unit According to the weight of each slave management unit, assign the idle cache to each slave management unit, and the free cache capacity allocated to each slave management unit is positively related to its weight; or when the cache capacity used by the slave management unit is greater than or When it is equal to the third threshold, if the total amount of free cache is greater than or equal to the second threshold, the master management unit increases the cache capacity of the slave management unit, temporarily increases the ability of the slave management unit to occupy the shared cache, and reduces at least one other slave management unit. The cache capacity of the unit, where increased cache capacity is equal to decreased cache capacity. The solution provided by this application is suitable for managing shared cache.

The invention discloses a method for storing log data and a log data storage system. The method comprises the steps of acquiring a log ID (Identity) and a log data structure which are distributed to a service log to be stored; enabling a log report agent, and interlinking a previously-obtained API (Application Program Interface) in a service program; calling the API in the service program and passing in parameters of the log ID and each field of the log data structure corresponding to the log ID; encapsulating the log data and outputting the encapsulated log data to a shared memory for cache by the API; firstly reading the log data in the shared memory, analyzing information such as the log ID, contained in the log data, and writing the read log data into a cache file according to the information by the log report agent; and reporting the data in the cache file to a log server to store by the log report agent through the network connection with the log server. According to the application of the method for storing the log data and the log data storage system, disclosed by the invention, a cross-business integrated log service system is created, thus the resource use efficiency and the reliability of log data storage are improved.

The invention relates to the technical field of photovoltaic production, and discloses a bearing mechanism for a solar cell module production stack unit. The bearing mechanism for the solar cell module production stack unit comprises a support, a connecting mechanism and an upper supporting column, the front surface of the support is fixedly connected with the back surface of the connecting mechanism, the support is in sliding connection with a square steel upright column through the connecting mechanism, the left side and the right side of the back side of the support are symmetrically provided with a plurality of upper supporting columns capable of supporting the cell module, the left side and the right side of the front side of the support are fixedly connected with limiting sliding grooves respectively, and the inner parts of the two limiting sliding grooves are connected with I-shaped sliding strips in a sliding mode. According to the bearing mechanism for the solar cell module production stack unit, a group of I-shaped sliding strips, carrying plates and lower supporting columns are additionally arranged on the back plate side of the support, and enabling the lower supportingcolumns to be coplanar with the free end of the upper supporting columns of the original equipment, the lower supporting columns and the upper supporting columns can coexist in equal height, comparedwith the prior art, the height of the support and the height of a conveyor base are not changed, the storage capacity of the support is increased by one time for the storage capacity of the cell module, and the buffer capacity of the stack unit is further increased.

The invention relates to a switchboard based extensible DSPEED-DSP_Q6474 signal processing board, which belongs to the field of high-speed real-time signal processing. The processing board comprises a single-core DSP processing node, four three-core DSP processing nodes, an FPGA (Field Programmable Gate Array) processing node, a serial Rapid IO (Input-Output) switchboard module and a CPCI 6U standard board type, wherein the single-core DSP processing node consists of a TMS320C6455 and a set of DDR2 SDRAMs of which the volume is 512MB; the three-core DSP processing node consists of a TMS320C6474 and a set of DDR2 SDAMs of which the volume is 512MB; and the FPGA processing node consists of an XC5VSX95 or an XC5VLX110T and two sets of DDR2SDRAMs of which the volume is 512MB. The invention solves the problems of small data exchange bandwidth between the traditional high-speed real-time signal processing board processors, non-uniform interface protocols and poor intra-board extendibility.

The invention discloses a method for managing url resource cache and a device thereof; the method comprises: setting up communication link between a service control module and a plurality of cache modules in web gateway; and setting an unique new url for url adapting resource by the service control module, and inserting a great deal of url adapting resource into the plurality of cache modules in a balancing way; therefore, the defect that a great deal of processing resource are needed to be consumed by the web gateway for querying as well as reading and writing the url adapting resource so asto affect the access speed of the user can be overcome. Meanwhile, the plurality of cache modules are provided, a task assigning module of each cache module can be connected with at least one task processing module, and a plurality of task processing modules can execute the task of inserting and querying the url adapting resource in parallel, the cache capacity of the web gateway can be expanded,and the flexibility and the utilization rate of the url resource cache can be improved.

Embodiments of the present invention provide a message interaction method and device. The method is applied to a server, and the server includes at least two message distribution units. The method includes: receiving the network element message of the network element reported by the client, and obtaining the first identification number of the network element; according to the network element The first preset correspondence between the identification number of the message distribution unit and the first identification number determine the target distribution unit of the network element; wherein the target distribution unit is based on the first preset correspondence The message distribution unit corresponding to the first identification number determined by the relationship, or the message distribution unit assigned to the network element according to preset rules; through the target distribution unit, report the network element message to the The network element has a higher-level management system with a second preset corresponding relationship. The embodiment of the present invention solves the problems in the prior art that the communication network element management system has redundant message processing, high system pressure and difficult expansion.