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

The invention discloses a power control system of an excavator. The power control system is characterized by comprising a pressure sensor, a main pump displacement regulator, a revolution speed sensor and a loading calculation module, wherein the pressure sensor and the main pump displacement regulator are arranged on the outlet of a main pump, the revolution speed sensor is arranged on an engine, and the loading calculation module is arranged in the main controller; the pressure sensor, the revolution speed sensor and the main pump displacement regulator are respectively connected with the main controller and output engine revolution speed, throttle position and main pump displacement after being calculated by the loading calculation module to respectively control an actuating mechanism. The method is as follows: low load is a positive flow control mode; high load: a. when engine revolution speed is more than or equal to no-load speed* (1-7%), controlling by a constant power mode; and b. when the engine revolution speed is less than no-load speed* (1-7%), controlling by a limiting power mode. The invention controls by constant power comprehensive limiting power, gives consideration to the power output of a dynamic system on the premise of ensuring excavating force, dynamically adjusts the matching between the practical power of a hydraulic system and requirements, lowers power loss and reduces oil loss.

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 a double-stator synchronous phase modifier of a rotor energy storage type, and the synchronous phase modifier comprises a power electronic device and a phase modifier. The power electronic device includes an AC/DC converter and a DC/AC converter which is connected with the DC side of the AC/DC converter. The phase modifier includes stators and a rotor, and the stators include an outer stator and an inner stator. Switches are respectively 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 outer stator and the AC side of the AC/DC converter are connected with a power grid, and one end of the inner stator is connected with the AC side of the DC/AC converter. The invention also relates to a control method for the double-stator synchronous phase modifier. The outer rotor connected with the power grid remains the synchronous with the power grid without affecting the conventional reactive power compensation and the normal operation of the phase modifier. When the frequency is constant at 50 Hz, the phase modifier performs the active powerconsumption for the grid, enlarges the application range, and facilitates the normal and stable operation of the phase modifier in the power grid.

The invention, which relates to the technical field of smart home, further discloses a smart home controller based on the Internet of Things. The smart home controller comprises a controller body anda housing. The housing sleeves the outside of the controller body. Four insertion rods are arranged outside the controller symmetrically; clamping slots corresponding to the insertion rods are formedin the housing symmetrically; and clamping mechanisms are connected inside the clamping slots in a sliding manner. Reset mechanisms sleeving the outsides of the clamping mechanism are fixedly connected to the outside of the housing. A heat dissipation mechanism attached to the controller body is fixedly connected to the inside of the housing; and ventilation mechanisms arranged between the two insertion rods at the same side are symmetrically arranged. With the smart home controller based on the Internet of Things, problems that the disassembly and assembly modes of connecting the smart home controller with the housing are tedious in the application process of smart home controller and the controller is easy to damage due to the poor heat dissipation effect of the housing are solved.

The invention designs a spatially-orthogonal all-optical modulation three-port device. A method comprises the steps that (1) a flame heating method is utilized to draw single-mode optical fibers, andthe manufactured micro-nano optical fibers are thin enough to make the ratio of evanescent waves high enough; (2) the micro-nano optical fibers are covered with graphene with a certain length; (3) themicro-nano optical fibers, two FC connectors and a lenticular lens are assembled for formation; (4) pump light and signal light are input to the three-port device; (5) according to a spectrum obtained by an output port of the three-port device, the modulated bandwidth, modulation depth and response time are measured. According to the device, the signal light is modulated by utilizing a spatial coupling mode, the spatially-orthogonal all-optical modulation three-port device is a novel three-port modulation device and has the advantages that the spectral width is extremely high, the output signal light is clean, the selectivity of the pump light is wide, the response speed is high, and the response time is not limited by the covering length of graphene, and the device can play an excellentrole in all-optical communication.

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 relates to an ion migration tube in an ion migration spectrometer, in particular to an ion migration tube with an internal electric field of an ionization region being a non-uniform direct-current electric field. The internal electric field intensity of the ionization region is non-uniformly distributed along the direction from an ion source to the ion gate. By means of the forming mode of the direct-current electric field, the difference of movement speeds of ions in direct-current electric fields with different intensities can be fully utilized, sample ion flow generated in theion source is subjected to space concentration, the concentration of sample ions in front of the ion gate is increased, and detection sensitivity of the ion migration spectrometry is improved on thepremise that response speed ofthe ion migration spectrometry is not affected.

The invention relates to a spring buffer type pneumatic executing mechanism. The spring buffer type pneumatic executing mechanism comprises an existing conventional piston type pneumatic executing mechanism, wherein the piston type pneumatic executing mechanism comprises a cylinder block, an upper cylinder cover, a lower cylinder cover and a piston. The spring buffer type pneumatic executing mechanism is characterized in that a plurality of upper spring buffer units which are uniformly distributed along the circumferential direction are arranged on the inner plane of the upper cylinder cover; the upper spring buffer units are matched with the upper surface of the piston, and are used for buffering the upward action of the pneumatic executing mechanism; a plurality of lower spring buffer units which are uniformly distributed along the circumferential direction are arranged on the inner plane of the lower cylinder cover; the lower spring buffer units are matched with the lower surface of the piston, and are used for buffering the downward action of the pneumatic executing mechanism. The spring buffer type pneumatic executing mechanism is skillful in structure, is reasonable in design, can be applied to the occasion of rapid and frequent actions, is accurately controllable in buffer stroke, has a small buffer stroke, and does not influence the response speed of the pneumatic executing mechanism; the pneumatic executing mechanism has a spring buffer function at the starting point and end point of the stroke.

The invention discloses a novel one-way valve buffer structure, and belongs to the technical field of hydraulic valves. The lower end of a valve element hole of a valve body is an oil port P, and the upper end of the valve body valve element hole is a spring cavity; a screw plug is arranged at the end of the spring cavity, a valve element is arranged in the spring cavity in a sliding mode, and a spring is arranged between the valve element and the screw plug; the lower end of the valve element abuts against the inner wall of the valve element hole of the valve body in a matched mode; an axial conical oil channel is formed in the circumferential face of the lower end of the valve element, the sectional area of the conical oil channel is gradually reduced from top to bottom, and the upper portion of the conical oil channel communicates with the spring cavity through an oil through hole; an oil port A is formed in one side of the valve body and communicates with the valve element hole of the valve body, and the conical oil channel is opposite to the oil port A in the radial direction of the valve element hole of the valve body. An oil way is simple and compact in structure, easy to machine and operate and high in practicability, the impact force of opening of the one-way valve on the screw plug is reduced, the risk of oil leakage at the screw plug is eradicated, and the response speed of the one-way valve is not affected.

The invention discloses a damping valve. The damping valve comprises a valve body, a valve core, a spring and a thread sleeve; the lower part of the valve body is provided with an opening A, the upperpart of the thread sleeve is provided with an opening B, and the thread sleeve is in fixed threaded connection with the valve body; the valve core and the spring are arranged in an inner cavity of the thread sleeve, the upper end of the spring abuts against a ladder-shaped place of the inner cavity of the thread sleeve, and the lower end of the spring abuts against the valve core, so that the lower end of the valve core keeps a trend of extending into the opening A, and the lower end of the valve core is in clearance fit with the opening A of the valve body; when oil liquid flows from the opening A to the opening B, the lower end of the valve core can gradually move upwards to reduce the length of clearance fit of the lower end of the valve core and the opening A of the valve body, and the oil liquid in the opening A flows into the opening B through a clearance between the valve core and the opening A of the valve body; and when the oil liquid flows from the opening B into the openingA, the lower end of the valve core completely extends into the opening A, and the oil liquid flows from the opening B into the opening A through the clearance between the valve core and the opening Aof the valve body. The damping valve is simple in machining and can effectively buffer load-sensitive pressure fluctuation.

The invention discloses a compensation control circuit and a compensation control method for a switch-type regulator and the switch-type regulator, and the compensation control circuit comprises the steps: detecting the conduction time information of a switch control signal of a switch tube, so as to achieve the compensation of the switch tube under the condition that the conduction time ratio meets a threshold value; the slope compensation signal is superposed at the rising stage of the inductive current or the slope compensation signal is superposed at the falling stage of the inductive current, so that the influence of noise on the system is reduced under the condition that the response speed of the system is not influenced when the conduction time is relatively long in the whole switching period, and the switching type regulator system which is high in response speed and good in stability is obtained.

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 belongs to the technical field of protection installation, and particularly relates to a smart home controller based on the Internet of Things. The smart home controller comprises a controller, a trip valve is rotatably connected to the interior of the controller, a connecting through groove is fixedly formed in the upper end of the controller, a fixed sleeving groove is fixedly formed in the bottom of the controller, the controller is fixedly connected with a fixing piece through the connecting through groove and the fixing sleeving groove, and the rear end face of the fixing piece is fixedly connected with a reinforcing piece. The fixing piece is fixed to the upper end and the lower end of the controller, so that the fixing pieces can integrally fix the controller, the controller is more stable during installation, the controller and the fixing piece can be stably fixed, and meanwhile the reinforcing piece is fixedly connected to the outer portion of the fixing piece, so that the fixing piece is fixedly connected with an external control box through a fixing bolt hole in the reinforcing piece, the stability of internal installation of the controller and the controlbox is improved, and the overall installation stability of the controller is improved.

The invention relates to a multidirectional adjusting sliding table which comprises a bearing plate, a bottom plate, a middle plate, a top plate, a movable plate and an angle adjusting mechanism which are arranged in a stacked mode. The bottom plate is rotationally matched with the bearing plate; a first guide mechanism is arranged between the bottom plate and the middle plate, so that the middle plate and the bottom plate relatively slide along the first guide mechanism in a first direction; a second guide mechanism is arranged between the middle plate and the top plate, the top plate and the middle plate relatively slide along the second guide mechanism in a second direction, and the first direction is different from the second direction; the movable plate and the top plate are spaced and movably connected; and the angle adjusting mechanism adjusts the included angle of the movable plate relative to the top plate. The multidirectional adjusting sliding table can achieve rotation adjustment, multi-direction lateral sliding position adjustment and inclination angle adjustment, provides precise and multi-axial adjustment possibility for optical instrument production, flexibly solves the multi-axis adjustment problem of optical production, optimizes the space size and quality, can be installed on a high-precision Z-direction sliding table, and does not affect the movement precision and response speed of the sliding table.