160results about How to "Guaranteed stability and reliability" patented technology

The invention provides a photosensitive drum driving assembly which comprises a gear wheel and an adjusting assembly, wherein the gear wheel is closely fitted at one end of a photosensitive drum; the adjusting assembly comprises a rotary driving force receiving head which extends out of the gear wheel; the adjusting assembly can be arranged in the gear wheel to move in reciprocating translation relative to the gear wheel along the axial direction of the photosensitive drum and a first direction vertical to the axial direction, and an elastic support part and an axial limit part are arranged between the adjusting assembly and the gear wheel; and the rotation driving force receiving head can be rotatably arranged on the adjusting assembly around the axis per se. Compared with the prior art, the photosensitive drum driving assembly allows simple and convenient assembly, and has stable structure performance; and a processing box in which the photosensitive driving assembly is adopted ensures stable disembarking and stable operation and has reliable performance.

The invention discloses a fault tolerant power inverter used for a switch reluctance motor. The fault tolerant power inverter comprises a main switching tube redundant unsymmetrical half-bridge circuit which has same three phases and is connected in parallel between a first and a second buses, a power supply and a storage capacitor; wherein, the first phase main switching tube redundant unsymmetrical half-bridge circuit comprises a first power switching tube, a second power switching tube, a seventh power switching tube, an eighth power switching tube, a first DC solid-state relay, a second DC solid-state relay, a first free wheeling diode and a second free wheeling diode. The stability and the reliability of the switched reluctance motor system are improved by the invention.

The invention belongs to the field of overcurrent protection circuit design, and provides an overcurrent protection device and electronic equipment. The overcurrent protection device comprises a switch unit, an overcurrent detection unit and a switch control unit, wherein the switch unit is used for controlling a protected load circuit being connected/disconnected through on/off states; the overcurrent detection unit is used for detecting the overcurrent on a power supply path of the protected load circuit; and the switch control unit is used for maintaining the switch unit being in the on state when the overcurrent detection unit does not detect the overcurrent; when the overcurrent detection unit detects the overcurrent, the switch control unit controls the switch unit being disconnected. According to the overcurrent protection device and electronic equipment provided by the invention, the switch control unit can control the switch unit on according to the external transient triggering or internal control, and then automatically maintains the switch unit being in the on state; the device and equipment have a state latching function; and the on state of the switch unit can be maintained without external triggering, and thus, the stability and reliability of the overcurrent protection device can be ensured.

The invention discloses a processing method for smelting TC4 alloy ingots by an electron beam cold-bed furnace. The method includes steps: adopting the electron beam cold-bed furnace for primary smelting to obtain the TC4 alloy ingots; subjecting the TC4 alloy ingots to direct rolling treatment to obtain TC4 alloy plates. A final-state structure of the TC4 alloy plates is an equiaxed structure, and small grain size and excellent mechanical property stability are realized. The method is free of a forging step, has the advantage of short processing route and is especially suitable for preparation of large-size wide plates. Stability and reliability in application of the electron beam cold-bed furnace to TC4 alloy smelting are guaranteed.

The invention relates to the field of automatic agricultural irrigation, in particular to a wireless automatic monitoring irrigation system based on cellular network communication. The system comprises a control center and a plurality of control unit nodes, wherein the control center and a plurality of control unit nodes are connected by a cellular wireless network; a plurality of control unit nodes form a mesh topology structure; an industrial computer for monitoring and controlling and a coordinator for data transmission are arranged in the control center; irrigation data are acquired by the control unit nodes through sensors, and are transmitted to the control center through the cellular wireless network; and the control nodes receive control data returned from the control center through the cellular wireless network as well, and controls open and close of an electromagnetic valve after control data processing. The system can provide an automation monitoring irrigation system applicable to farmland, greenhouse and other environments, so that a user can monitor environment parameters and plant physioecologic parameters of a monitored region in real time, thereby carrying out timed automatic irrigation or automatic irrigation according to actual water demand condition of the environment.

An automatic dumping type medical dustbin is composed of a frame, handrails, crank fixing plates, a dumping hand crank, a crank disc, a connecting rod, a compressing and crushing mechanism, a dustbin,a garbage pushing mechanism, a dustbin fixing plate, wheels, a crank boss and a rotating connecting pipe. The dustbin and the dustbin fixing plate are connected together through the rotating connecting pipe, and the dustbin can freely rotate around the rotating connecting pipe. The crank disc is fixed to the two crank fixing plates. The dumping hand crank is fixedly mounted on the front portionsof the crank fixing plates. The crank boss is fixedly mounted on the rear portions of the crank fixing plates. One end of the connecting rod and the crank boss are connected together, and the other end of the connecting rod is connected with a connecting column on the side face of the dustbin. The compressing and crushing mechanism is mounted above the dustbin. The garbage pushing mechanism is mounted in the dustbin. The automatic dumping type medical dustbin has the beneficial effects that the whole device structure is simple, and operation is convenient; direct contact with medical garbage is avoided; the number of times of garbage dumping is reduced; and the work efficiency is improved.

The invention discloses a concrete tower drum assembly and a stretching method thereof. The concrete tower drum assembly comprises a foundation, a tower drum body, an adapter, a first prestressed tendon and a second prestressed tendon. The foundation is suitable for being arranged below the ground; the tower drum body is arranged on the foundation; the tower drum body comprises a plurality of tower drum sections; the plurality of tower drum sections are sequentially connected along an up-down direction; the plurality of tower drum sections are divided into a first group of the tower drum sections and a second group of the tower drum sections located at the upper ends of the first group of the tower drum sections; the adapter is arranged at the upper end of the tower drum body and connected with the uppermost tower drum section; the first prestressed tendon is arranged in the foundation and the first group of the tower drum sections in a penetrating manner; and the second prestressed tendon is arranged in the foundation, the first group of the tower drum sections, the second group of the tower drum sections and the adapter in a penetrating manner. The concrete tower drum assembly disclosed by the invention is high in stability and reliability; and moreover, the structure of the concrete tower drum assembly is capable of reducing stretching times while ensuring construction safety during a prefabricating process, thus increasing the construction efficiency.

The invention discloses an unmanned aerial vehicle remote video pushing method based on a cloud side. Multiple clients, a cloud side video server, a base station, a ground control station and an unmanned aerial vehicle are provided; the real-time pushing and watching of the unmanned aerial vehicle remote video can be realized by means of the cloud-side video server system of the 4G, thereby overcoming the territory and distance limitation, and the demand of simultaneously watching the pushed video by multiple clients can be satisfied; the 4G module is respectively installed on the unmanned aerial vehicle system and the ground station so as to produce two sets of solutions with the same functions and different application scenes, thereby ensuring the reliability and stability of the remotevideo pushing at the cloud side. The current popular video live technology is applied to the unmanned aerial vehicle field, the remote live of the unmanned shot video is performed by sufficiently utilizing the internet and the streaming media technology.

The invention relates to a manufacturing technology of a field effect transistor, in particular to a method for thinning a substrate of a gallium nitride-based microwave field effect device. Aiming at the defects of a substrate thinning technology in the method for manufacturing the field effect transistor in the prior art, the invention discloses a method for manufacturing the field effect transistor, improves the substrate thinning technology of the field effect transistor so as to adapt to the thinning of a high-hardness substrate material, and improve the quality of a substrate process technology, the quality of the substrate and the overall performance of the device. By using the method for manufacturing the field effect transistor, in the manufacturing technology process of the field effect transistor, a carborundum substrate and other high-hardness substrates of the field effect transistor can be etched to be thinned by plasma. The invention can avoid the break of wafers and improve the quality of thinned substrates and is particularly suitable for a manufacturing technology of gallium nitride-based field effect transistor devices.

The invention discloses a laser wire filling welding device and method. The laser wire filling welding device comprises a laser welding head and a wire feeding mechanism; the wire feeding mechanism isfixedly arranged on the laser welding head and is used for front wire feeding with an included angle, between a welding wire and the laser optical axis, being 30 to 75 degrees; according to the laserwire filling welding device, through the wire feeding mechanism, front wire feeding is carried out with the included angle, between the welding wire and the laser optical axis, being 30 to 75 degrees, stability and reliability of laser wire filling welding can be ensured, good welding line forming is obtained, and the product yield and efficiency are improved.

The invention provides a moving object wireless posture monitoring system. The system comprises a power source module, an inertia sensor module, a single-chip-microcomputer module, a wireless communication module and a remote display module. The signal output end of the inertia sensor module is connected with the single-chip-microcomputer module, the single-chip-microcomputer module outputs processed data to the remote display module through the wireless communication module, and posture angle information of the system is directly displayed on a remote terminal. The roll angle, the pitch angle and the yaw angle of the system can be displayed at the same time, so a user can monitor moving conditions of the system in real time and adjust an operation scheme. The system can be used for remote wireless dynamic monitoring of the inclination angle of the system, and has the advantages of achieving continuous monitoring, quick data acquisition and real-time display, being high in precision and the like.

The invention is suitable for the technical field of computer application. The invention provides a production tracking method based on a block chain technology, terminal equipment and a computer readable storage medium. The method comprises the following steps: comparing a production record of a target block node in a production system with a preset requirement of a corresponding production process; under the condition that the production record meets a preset requirement; and synchronizing the production record of the target block node to the block node except the target node in the production system, and tracking and processing a responsibility node when a violation occurs in the production process, thereby realizing the production supervision of the block node through a chain tracing method, and ensuring the reliability and the stability of the production system.

The embodiment of the invention discloses a streaming media transmission method. The streaming media transmission method comprises the steps that a video file is transmitted to a streaming media live broadcast server or a broadcast foreground; if a transmission error occurs, a key frame which is not later than the image frame which is transmitted at last is found in the video file; decoding is started from the found key frame; encoding is conducted by using the image frame which is transmitted at last as the key frame; the video file which is obtained after encoding is transmitted to the streaming media live broadcast server or the broadcast foreground. According to the streaming media transmission method, the key frame which is not later than the image frame which is transmitted at last is found in the video file, decoding is started from the found key frame, encoding is conducted by using the image frame which is transmitted finally as the key frame, in this way, it is guaranteed that the streaming media live broadcast server can directly decode received image frames under the conditions of network interruption and reconnection, and streaming media transmission reliability and stability are guaranteed.

The invention relates to a dual-channel power supply system for tethered drones, which includes a ground power supply device and a power module mounted on the tethered drone. The ground power supply device and the power module are electrically connected together through cables, and the cables pass through The cable is retracted and placed, and the ground power supply device includes: an AC power generation device; a main DC path, which includes an AC-DC power conversion device, and the AC power generated by the AC power generation device is converted into a first current value with a first current value through the main DC path. a direct current; and a secondary direct current path connected in parallel with the main direct current path, comprising a charger and a storage battery pack, through which the alternating current generated by the alternating current generating device is converted into a second direct current having a second current value, para. Both a direct current and a second direct current are delivered to the power module via the cable. The invention effectively solves the problem of long-time power supply of the tethered drone, and greatly improves the flight or working time of the tethered drone.

The invention discloses a high-reliability system monitoring method and system, which are applied to data collecting equipment. The data collecting equipment comprises a CUP (central processing unit) module and an MCU (micro control unit) module, wherein a process monitoring module is arranged in the CPU module. The method comprises the following steps that the process monitoring module obtains the operation state data of each work process in the CPU module, and judges the data; the process monitoring module sends a reset instruction to work processes corresponding to the data exceeding a preset normal range; the process monitoring module obtains self operation state data and timely sends the self operation state data into the MCU module; if the MCU module does not receive the data sent by the process monitoring module within specified time or the received data exceeds the preset normal range, a reset instruction is sent to the CPU module by the . The method and the system have the advantages that the multiplex monitoring protection on the CPU module and the work processes of the CUP module is realized in software and hardware modes, and the work stability and the work reliability of the CPU module are ensured.

The invention discloses a method and system for processing a system temperature sensor fault of a server. The method comprises the following steps that firstly, a monitoring management unit is used for polling a temperature sensor through an I2C bus to obtain instant system temperature information, and controlling the output duty ratio of a fan controller according to the current system temperature conditions; secondly, when the temperature sensor works normally, the monitoring management unit outputs high-level GATE signals, a system fan is controlled by PWM signals, and when the temperature sensor breaks down, the monitoring management unit immediately reduces GATE signals, revolving speed control signals of the fan are directly increased into the direct voltage VCC, and the fan rotates at a full speed; thirdly, the monitoring management unit obtains correct system temperature information again in a polling mode and releases the GATE signals, the system fan is controlled by the PWM signals, and normal work is restored. By means of the method and system, the reliability and stability of the server can be guaranteed, and the stabile operation of a calculation system can be guaranteed.

The invention discloses a preventive maintenance turnover mechanism which comprises a box, a screen assembly, four rod mechanism hinges, free positioning type slide supports and adjusting mechanisms. The screen assembly is hinged to the box through the four rod mechanism hinges, the free positioning type slide supports are arranged at two side edges of the screen assembly and used for supporting and positioning the screen assembly, and the adjusting mechanisms are arranged at two side edges of the box and used for achieving fine adjustment of the screen assembly. The four rod mechanism hinges are connected with the box and the screen assembly so that labor saving and smoothness during screen assembly turnover are guaranteed, the free positioning type slide supports support the screen assembly, the adjusting mechanisms perform fine adjustment to the preventive maintenance turnover mechanism so that reliability and stability of the preventive maintenance turnover mechanism are guaranteed, and simultaneously, the preventive maintenance turnover mechanism is simple in structure.

The invention relates to a method for the rapid convergence of layer 2 multicast of the Ethernet and an Ethernet system. The method comprises that: a node determines the existence of a user on a failing port or blocked port, and determines that the user may be offline due to a failure or blocking; the node constructs a leave message of a group with the user, and sets the maximum response time of the leave message to be a preset value; a querier receives the leave message, judges the maximum response time is the preset value according to the leave message, and transmits a query message to all non-multicast routing ports of the querier; and the downstream equipment of the querier receives the query message, and finishes switching multicast traffic in response to the query message. By the method and the Ethernet system, the problem that a multicast service cannot be rapidly switched when link topology is changed is solved, and the reliability and stability of the multicast service are ensured.

The invention discloses a structural management method for disk directory information. The structural management method is characterized in that: a database is set, file category information tables are built for disk directories to be managed, and are stored in the database, and the file category information table includes a directory name, a number and subordination; and structured management includes: (1) automatic directory generation; (2) file storage; (3) file access; and (4) directory integrity check. Since the invention sets the database, builds the file category information tables for the disk directories to be managed and obtains the locations of files to be accessed through the file category information tables when the files need to be accessed, a user can clearly determine directory structures, and the invention prevents the problem that the files cannot be found when being randomly stored; and the stability and reliability of directory structures are guaranteed.

The invention discloses a guide post type sucking disc wall-climbing spraying robot. The guide post type sucking disc wall-climbing spraying robot comprises a moving part, an adsorption part and a spraying part, wherein the moving part comprises a longitudinal moving device and a horizontal moving device. According to the guide post type sucking disc wall-climbing spraying robot disclosed by the invention, through a motion mode of bidirectional moving of a guide post and an air cylinder, the robot can move optionally on the wall surface without steering the robot on a working platform; meanwhile, the mutual matching of the longitudinal moving device, the horizontal moving device, the adsorption device and a spraying device is adopted, on one hand, a complicated mechanism for enabling the robot to steer is avoided, on the other hand, the reliability and the stability of the robot can be ensured; besides, the adsorption device adopts a micro vacuum pump and an independent pneumatic loop, the size is small, the weight is light, the adsorption is reliable, and the problem of microminiaturization of a vacuum adsorption mechanism is effectively solved.

The invention discloses a filling limiting cylinder valve which comprises a valve body, a valve element and a first spring, wherein a sliding sleeve capable of doing reciprocating motions in a way of facing to the valve element and a plug screw used for mounting the sliding sleeve into a clamping seat are mounted in the clamping seat on a side wall of the valve body, the plug screw is provided with an iron core extending into the sliding sleeve and used for driving the sliding sleeve through magnetic force to slide to the valve element, the exterior of the sliding sleeve is provided with a second spring used for keeping a tendency that the sliding sleeve slides away from the valve element, a step hole is formed in a runner, a cone part capable of blocking the stepped hole to seal the runner when the valve element moves downward is formed in the valve element, and the sliding sleeve and the valve element are arranged to be that the sliding sleeve stops the valve element moving downward when the sliding sleeve slides to the valve element. Since the filling limiting cylinder valve provided by the invention is arranged to be that the valve element moves downward to close the runner of the cylinder valve, the requirements of relatively great air demand and inflating volume of an electromagnetic filling limiting cylinder valve can be met completely. When the valve element moves downward, all that is needed is to overcome the elastic force of the first spring, and the reliability and the stability of the work of the valve element are ensured.

The invention relates to a header of a network intelligent water meter, which comprises a header casing provided with a water inlet and a water outlet, a flow sensor and a flow control system, wherein the flow control system comprises a microprocessor, a power supply connected with the microprocessor and provided with a low-electric-quantity alarm circuit, a control module of the power supply, a flow data acquisition module, an interval type display unit module, a triggering type communication and data transmission module and a reset setting module, low-power-consumption triggering type communication and transmission, and remote power supply and interval type display modes are adopted in the invention to effectively reduce the power consumption of the header; the power consumption of the header is 10% to 25% that of a background technology; and the reliability and the stability of the header can be guaranteed by utilizing the functions of low-electric-quantity alarm and antimagnetic disturbance. Thus the header of a network intelligent water meter has the advantages of high precision of water consumption measurement and display, and remote meter reading, low energy consumption of the header, simple structure and convenient maintenance of the header, and the like. The header of a network intelligent water meter can meet the requirements on all-weather communication and remote meter reading and is beneficial to enhancing the characteristics of popularization and application of the network intelligent water meter.

The invention discloses a hydrological two-channel underwater communication system. The system comprises an overwater unit and an underwater unit, and is characterized in that the overwater unit comprises a radio receiving module, an ultrasonic wave receiving probe, a receiving drive and signal demodulation module, a water surface microprogram control unit (MCU) module and a radio forwarding module. The underwater unit comprises a radio transmitting module, an ultrasonic wave transmitting probe, a transmitting probe drive module, an underwater MCU module and a signal acquisition module. The underwater communication system communicates through two channels including the underwater ultrasonic wave and the radio, realizes medium and short distances of underwater communication while having the cost of civil and commercial grades of equipment, solves the problems of instability and unreliability of medium and short distances of communication, and keeps medium and short distances of underwater communication continuous and highly reliable.

A multifunctional cable saddle comprises a saddle body. Two ends of the saddle body respectively face a mid span and an anchor and are provided with a mid span end and an anchoring end, a supporting section saddle groove corresponding to the mid span end and a diverging section saddle groove corresponding to the anchoring end are formed in the saddle body and are in smooth transition in an extending direction of a main cable, and the saddle body integrates a main cable saddle supporting function and a dispersive cable saddle diverging function. The multifunctional cable saddle integrates the main cable saddle supporting function and the dispersive cable saddle diverging function, and the diverging section saddle groove is matched with the corresponding anchoring end, so that diverging and steering of cable strands of the main cable by the diverging section saddle groove are enabled to correspond to position of the anchor, steering angle of the cable strands is mild while supportive of large-angle adjustment and clear in stress, stability and reliability of a suspension bridge built by using the saddle can be ensured, extending length of the main cable can be reduced reasonably and effectively, compact control on bridge type of the suspension bridge is facilitated, and the multifunctional cable saddle is especially suitable for being fixed and used on side towers or bank foundations of the suspension bridge.

The invention provides a central locating mechanism and device, and relates to the technical field of locating of micro parts. The central locating mechanism comprises a power mechanism, a cam mechanism, a base, elastic parts and clamping parts, wherein the cam mechanism comprises a cam and at least two driven parts oppositely arranged on the edge of the outer side of the cam; an output end of thepower mechanism is in transmission connection with a rotating shaft of the cam; the base is erected above the cam; at least two oppositely arranged connecting seats are arranged on the base; each connecting seat is connected with one driven part; the clamping parts which extend in the direction away from the base are arranged on the connecting seats; the elastic parts are arranged on the connecting seats; and the driven parts abut the edge of the outer side of the cam under the action of the elastic parts, and the clamping parts move towards the center to clamp a to-be-detected product. According to the central locating mechanism, precision of a central position of the to-be-detected product can be improved, and stability and reliability of testing data acquisition are guaranteed.

The invention discloses a repeater and an information transmission method thereof. The repeater comprises a terminal and a communication module mounted on the terminal, and the repeater further comprises a data conversion unit and a remote unit. The communication module which is originally mounted on the terminal is mounted on the remote unit, and the remote unit is provided with an antenna which can be connected with the communication module for wireless communication; the data conversion unit used for analog of the communication module is mounted on the terminal and connected with the terminal through a remote communication module interface; the data conversion unit is in wired connection with the remote unit. The repeater and the information transmission method thereof have the advantages that cross-standard, cross-manufacturer and cross-product compatibility is realized; the communication module can be mounted at positions excellent in signal service, communication distance between a terminal and the communication module is effectively increased, and communication effects are excellent; in addition, normality in operation can be realized only by getting power from the terminal instead of an external power source, so that convenience in mounting and utilization is achieved.

The invention discloses an electromagnetic valve closed in an electrified state, which comprises a valve body part and a coil part, wherein a movable iron core part and a fixed ion core component are arranged in the valve body part. The electromagnetic valve is characterized in that: the fixed ion core component comprises a fixed part which is immobilized axially and a moveable part which can move axially and relatively; and an offsetting spring is arranged between the fixed part and the moveable part which can rotate axially and relatively. The electromagnetic valve closed in the electrifiedstate belongs to the technical field of refrigeration control. After the electromagnetic valve of the invention is used, an assembly process is relative simple, the offsetting spring avoids an electromagnetic loop, the magnetic loop is rationally designed, and thus, the stability and reliability of the electromagnetic valve can be guaranteed.

The invention discloses an ice cream machine with restart and regeneration functions. By setting the restart function, regeneration conditions and the regeneration function, when the ice cream machineis in use, firstly, an operator sends a function trigger signal to a control system, then, the ice cream machine in a refrigeration state starts the regeneration function when the regeneration conditions are met, and the ice cream machine in a standby state starts the restart function and starts the regeneration function when the regeneration conditions are met so that a compressor can be startedin advance for refrigeration to regenerate ice cream in a freezing vat and improve the hardness and mouthfeel of the ice cream in the freezing vat; secondly, the operator controls a discharge valve to be switched on through a discharge handle, and then the ice cream in the freezing vat is discharged. Thus, the ice cream machine can avoid discharging of ice cream meeting the regeneration conditions, and it is ensured that ice cream discharged in the whole use process of the ice cream machine has good hardness and mouthfeel.

The invention discloses a shock insulation device for a railway bridge. The shock insulation device comprises a base, a shock-absorbing support seat and a shock absorbing structure, wherein the shockabsorbing structure comprises a shock absorbing seat and a shock absorbing frame arranged on the shock absorbing seat, a shock absorbing cavity with an opening in the top surface is formed in the shock absorbing seat, at least two propping cavities are uniformly formed in the inner wall of the shock absorbing cavity, through holes are vertically formed in the shock absorbing seat, a vertical slotis formed in the shock absorbing frame, rotating plates are arranged in the propping cavities, shock-absorbing propping rods and buffering propping rods are fixed on edges of the rotating plates, pullcable rings are fixed on the base, driving wheels are arranged on the shock absorbing seat, pull cables are arranged between the propping cavities and the pull cable rings, and shock-absorbing elastic pieces with W-shaped sections are fixed between the bottom surface of the shock-absorbing seat and the base. The shock insulation device is reasonable in structure arrangement, the overall use stability and reliability can be guaranteed, the shock insulation device has better shock insulation performance, besides, the overall horizontal rigidity is also effectively guaranteed, the adaptability is high and the practicability is good.

The invention provides a viscoelastic damping anti-galloping device. The viscoelastic damping anti-galloping device comprises a linking plate, an upper end cover, a lower end cover, a piston, a piston rod, a damping ring and a pressure weight piece, wherein the open ends of the upper end cover and the lower end cover are opposite to each other and are buckled to form a rectangular outer shell; the damping ring and the piston positioned in the central hole of the damping ring are fixedly arranged in the outer shell; one end of the piston rod is positioned in the outer shell and is fixedly connected with the piston; the other end of the piston rod penetrates through the bottom end of the outer shell and is provided with the pressure weight piece; the linking plate is fixedly arranged at the top end of the upper end cover. When a transmission line gallops, the damping anti-galloping device generates a corresponding inertia impact force through the added pressure weight piece and vibrates with the arranged damping ring to consume energy, and the galloping energy is consumed through vibration attenuation, so that the effect of reducing the galloping response is realized; meanwhile, the viscoelastic damping anti-galloping device has high stability.