32results about How to "Does not affect response speed" patented technology

The invention discloses an InGaAs detector chip and a preparation method thereof. The InGaAs detector chip sequentially includes a substrate, an N-type semiconductor layer, an absorption layer, and a P-type semiconductor layer, and the N-type semiconductor layer is n+ doped The P-type semiconductor layer is a p+-doped InP layer, and the absorber layer includes a p+-doped P-type InGaAs absorber layer and an n+-doped N-type InGaAs absorber layer, and the P-type InGaAs absorber layer is in phase with the P-type semiconductor layer Adjacent, the N-type InGaAs absorbing layer is adjacent to the N-type semiconductor layer, the thickness of the P-type InGaAs absorbing layer is smaller than the thickness of the N-type InGaAs absorbing layer, and the doping concentration of the P-type InGaAs absorbing layer is greater than that of the N-type InGaAs absorbing layer. impurity concentration. The present invention optimizes the thickness and doping of the absorbing layer, adopts two layers of InGaAs absorbing layer with high and low doping, can increase the junction capacitance of the PN junction, and greatly improves the resistance of the detector chip without affecting the response speed of the chip. Electrostatic capability ensures the reliability of the chip.

The invention provides an SOC (system on a chip) achieving quick start-up and a realization method of the SOC. The SOC achieving the quick start-up comprises a CPU (central processing unit) and a cache, wherein the CPU is connected with an external memory by the cache; the CPU and the cache are connected with a power path controller; the CPU reads program instructions required for the start-up into the cache from the external memory during shutdown; and during second start-up, after the CPU is reset, the CPU reads the program instructions required for the start-up in the cache. According to the SOC and the realization method, since start-up programs are stored in the cache during the shutdown, the most consumed time, namely external memory handling time, is saved during the second start-up, and the start-up can be accelerated greatly.

The invention provides a method and a device for ciphering and deciphering data in a management system. The method includes the steps: generating a public key and a private key of an RSA algorithm according to login passwords of a user when the user login management system uploads data; ciphering a secret key randomly generated by the management system by the RSA algorithm according to the public key to generate a secret key ciphertext, ciphering the data uploaded by the user according to the secret key ciphertext by a reversible algorithm and storing the ciphered data when the user login management system uploads the data, and deciphering the secret key ciphertext according to the private key by the RSA algorithm to obtain the secret key when the user login management system downloads the ciphered data; deciphering the ciphered data according to the deciphered secret key by the reversible algorithm; downloading the data after obtaining the deciphered data. By the method and the device, data ciphering security can be improved, support of a client is not needed in the data ciphering process, and the user can cipher and decipher the data without redundant operations.

The invention relates to an asynchronous replication method based on zfs send. The asynchronous replication method comprises the following steps of: 1) executing a replication function, and starting a client; 2) switching initial messages between a local storage system and a remote backup system; 3) sending a breakpoint file by the client, which comprises the following steps of: establishing a thread group by the client; reading the thread group for reading snapshot contents and storing the contents in a high-speed cache; writing the thread group for generating a breakpoint file through snapshot contents stored in the high-speed cache and further writing the breakpoint file into a low-speed magnetic disk, and judging whether the occupied high-speed cache reaches a maximum value or not; sending the thread group for sending the breakpoint file in the high-speed cache to a server through a network interface; driving the thread groups through the messages, and forwarding the messages to a next thread for continuous processing after the job of a current stage is completed by the thread; and) receiving the breakpoint file by the server, and returning a replication result. Compared with the prior art, the asynchronous replication method has the advantages of high backup efficiency and the like, and data consistency is effectively ensured.

The invention provides a servo positioning control system which comprises a position ring control unit, a position instruction receiving unit, an instruction residue calculation unit and an interpolation displacement calculation unit. The position instruction receiving unit is used for receiving position instructions from an upper computer according to the communication cycle T, the instruction residue calculation unit is used for calculating the position instruction residues in the current communication cycle in an iterative mode according to the position instructions received from the upper computer, the interpolation displacement calculation unit is used for calculating the interpolation displacement value, produced each time when the cycle is scheduled, in the current communication cycle according to the position instructions and the instruction residues, and the position ring control unit outputs position ring scheduling instructions with the interpolation displacement values according to the scheduling cycle T0, wherein T is equal to the product of n and T0 and n is a positive integer. The invention further provides a corresponding method. By rescheduling the position instructions in each communication cycle, the step change of the position instructions is avoided, and the speed can be stably changed.

This application provides a method for processing SDN packets based on user policies. The method for processing SDN packets based on user policies includes: generating a default flow table according to a user policy configuration file, the default flow table including a plurality of flow entries respectively corresponding to different priorities; between the SDN device and the SDN controller Establish a message transmission channel between; according to the relevant flow entry of the default flow table, transmit the high-priority user message to the SDN controller through the message transmission channel, and transmit the low-priority user message to the SDN controller The text is discarded directly. The present application provides an SDN device and an SDN system adopting the above SDN packet processing method.

The invention belongs to the technical field of protective installation, in particular to a smart home controller based on the Internet of Things, including a controller, the controller is internally rotatably connected with a trip valve, and the upper end of the controller is fixedly provided with a connecting slot, so that The bottom of the controller is fixedly provided with a fixed socket groove, and the controller is fixedly connected with a fixing part through the connecting through groove and the fixed socket groove, and the rear end surface of the fixing part is fixedly connected with a reinforcement part. The present invention fixes the upper and lower ends of the controller through the fixing piece, so that the fixing piece can fix the controller as a whole, makes the controller more stable during installation, and enables stable fixing between the controller and the fixing piece. The external fixed connection reinforcement makes the fixing part fixedly connected with the external control box through the fixing bolt hole inside the reinforcement part, which improves the stability of the internal installation of the controller and the control box, and improves the overall installation stability of the controller.

The invention discloses a load sensing pressure filter valve. The load sensing pressure filter valve comprises a valve body and a first damping disk, a second damping disk, a steel ball, a spring anda thread sleeve that are arranged in the inner cavity of the valve body in sequence, wherein an opening A is formed in the lower part of the valve body; the first damping disk is arranged at the smallpore diameter position of the inner cavity of the valve body in a sliding manner; a first damping hole is formed in the first damping disk; a first valve opening and a second damping hole are formedin the second damping disk; an opening B is formed in the upper part of the thread sleeve; the steel ball and the spring are arranged in the inner cavity of the thread sleeve; the spring enables the steel ball to maintain a trend of blocking the first valve opening; when an oil liquid flows to the opening B from the opening A, the first damping disk slides upwards to block the second damping hole,and the oil liquid from the opening A flows into the opening B after flowing through the first damping hole and the first valve opening and pushing the steel ball away; and when the oil liquid flowsinto the opening A from the opening B, the first damping disk slides downwards, the oil liquid flows into the opening A from the opening B after flowing through the axial clearance among the second damping hole, the first damping disk and the second damping disk and the first damping hole. The load sensing pressure filter valve has the benefits as follows: the processing is simple, and the load sensing pressure fluctuation is effectively buffered.

The invention provides a two-way pressure-compensated valve. The two-way pressure-compensated valve comprises a valve bush, a valve core, a thread sleeve, a spring and a damping valve assembly. The valve bush is provided with a port A, a port B and a port L. The valve core is arranged in the valve bush, a first flowing channel is formed in one end of the valve core, and the first flowing channel communicates with the port B. The thread sleeve is connected to the end, close to the first flowing channel, of the valve bush. The spring is located in an inner cavity of the thread sleeve, the lowerportion of the spring is connected to the upper end of the valve bush through a first gasket in a pressing mode, and the other end of the spring abuts against the valve core through a second gasket and a stop ring. The damping valve assembly is fixedly connected to the lower end of the valve bush, and a load feedback cavity is formed above the damping valve assembly. A first damping channel and asecond damping channel connected with the load feedback cavity and the port L are formed in the damping valve assembly, and damping of the second damping channel is higher than that of the first damping channel. The situation that the damping magnitude of oil fluid flowing in and out of the load feedback cavity is different is achieved through the damping valve assembly, thus influences of loadingpressure punctuation on the ports of the valve core are buffered, and rapid response is achieved. The two-way pressure-compensated valve is compact in structure, and can effectively buffer load feedback pressure punctuation while not affecting the response speed.

The invention relates to a dual-stator synchronous condenser with rotor energy storage, including power electronic equipment and the condenser, the power electronic equipment includes an AC / DC converter, and a DC / AC converter connected to the DC side of the AC / DC converter. The converter and the condenser include a stator and a rotor. The stator includes an outer stator and an inner stator. A switch is connected between one end of the outer stator and one end of the inner stator, and between the other end of the outer stator and the other end of the inner stator. One end of the stator and the AC side of the AC / DC converter are connected to the grid, and one end of the inner stator is connected to the AC side of the DC / AC converter. The invention also relates to a control method of a double-stator synchronous condenser with rotor energy storage. The invention does not affect the conventional reactive power compensation function of the condenser itself, and the normal operation, the external stator connected to the power grid is kept in sync with the power grid, under the condition of constant 50Hz, it can also perform active power compensation to the power grid, expanding the scope of the power conditioner It is beneficial to the normal and stable work of the condenser in the power grid.