30results about How to "Achieving Universal Design" patented technology

The invention discloses a generalized comprehensive radio frequency measurement and control system for a spacecraft, and the system comprises a SAR (synthetic aperture radar), a synthetic radio frequency channel and a synthetic processing terminal. The SAR realizes the integrated conversion between the space electromagnetic wave energy and the energy of the measurement and control system. The synthetic radio frequency channel realizes the conversion between a radio frequency signal and an intermediate frequency signal. The synthetic processing terminal receives the externally inputted telemetry data to form a ground-based telemetry frame, and then sequentially performs coding, modulation and digital-to-analog conversion, and finally transmits the ground-based telemetry frame through the synthetic radio frequency channel and the SAR. The comprehensive radio frequency measurement and control system can integrate the existing functions of telemetry, security control, external measurement,navigation and relay, and integrates independent radio frequency resources and baseband resources to form the generalized comprehensive radio frequency measurement and control system for the spacecraft, thereby greatly reducing the weight, volume and power consumption of the measurement and control system, and improving the system performance.

The invention provides a high-reliability wind and light complementary communication power supply system in a full redundancy form in order to overcome the defects of high fault rate and poor maintaining convenience for the existing wind and light complementary system. Aiming at the power supply part, a novel rectification load discharger is designed; the reliability of the power supply part is improved by adopting a wind and light general power supply module; the communication reliability is ensured by adopting a CAN (controller area network) and a 485 two-stage ring bus; the reliability of the control part is ensured by adopting a mutual monitoring and controlling mode of a central processing unit and a GPRS (general packet radio service) monitoring and controlling communication module, thus all the power supply part, the communication part and the control part in the system have redundancy characteristics. The system not only can detect the fault in real time, but also can process effectively according to the existent fault; each individual part in the power supply system of electric equipment can not influence the operation of the whole system because of invalid fault, the system recombines and controls again according to the grade of the fault, or the origional performances are kept maximally at the cost of the corresponding performance loss, and when the fault reaches certain limit, external alarming is carried out to inform proffesional staff of overhaul.

The invention provides a low-voltage intelligent double-power-source change-over switch. A main power source, a secondary power source, a load power source wiring port, a red indicator lamp, a green indicator lamp, a liquid crystal display, a communication interface and various keys are arranged on a switch cover of the low-voltage intelligent double-power-source change-over switch; four driving energy-storage capacitors and a sampling circuit board are mounted in a left cavity of a switch base of the low-voltage intelligent double-power-source change-over switch; a main charging module, a secondary charging module, a main automatic voltage transformer, a secondary automatic voltage transformer, and three voltage mutual inductors are mounted on the sampling circuit board; a secondary capacitor and a control circuit board are mounted in a right cavity of the switch base; a main power source module, a secondary power source module, a main processor and a secondary processor are mounted on the control circuit board; four vacuum electromagnetic driving change-over switches respectively controlling an A phase power source, a B phase power source, a C phase power source and an N phase poser source are mounted in a middle cavity of the switch base; and a main power source lead-in wiring end, a secondary power source lead-in wiring end and a load power source lead-out sleeve are arranged on the switch. The invention provides a carrier capable of being actually applied to realizing the comprehensive intelligentization of functions of digital signal collection, processing, control and communication, and has the advantages of small size, compact structure, and convenience in utilization and installation.

The invention discloses a universal multifunctional safety circuit board for synchronous and asynchronous elevators. The universal multifunctional safety circuit board comprises a door safety interlock loop, an upper door opening and closing detection loop, a lower door opening and closing detection loop, an advanced door opening control loop, a relay detection and door signal dual detection loop,a door lock safety control loop, an asynchronous elevator accidental movement control loop and an elevator outside safety loop. According to the universal multifunctional safety circuit board, on thebasis that a releveling plate is used in an original elevator and in the condition that components and parts are not additionally arranged, a universal lift car accidental movement detection functionof the synchronous and asynchronous elevators is realized only by adjusting and optimizing internal wiring; in addition, the universal multifunctional safety circuit board is organically combined with a control system, multiple functions of advanced door opening and releveling and door lock short-circuit detection and the like can be realized, and the universal design of one board with multiple purposes is realized; and the universal multifunctional safety circuit board has the advantage of low cost and is favorable for managing the whole link of production, after sale, maintenance and the like.

The invention provides a 1553B bus data communication method and a 1553B bus data communication system, which are applied to an embedded operating system, and a driving program and an application program of a bus controller BC are loaded in the embedded operating system. The method comprises the following steps: S1, dividing all data packets into single messages of not more than 32 words; S2, enabling the BC to send a single message to an RT according to the round-robin RT sub-addresses, and appointing a data transmission protocol in the message content; S3, enabling the RT to sequentially receive the single message transmitted by each RT sub-address according to a single message interruption mode, and performing protocol analysis on the single message. According to the invention, the interface between the 1553B bus application program and the driving program is simplified, the universal design of the 1553B bus driving software is realized, the development difficulty of the 1553B bus application program is reduced through the transparent and standardized design of the driving software to the application software, and the software development efficiency is improved.

The embodiment of the invention provides a variable-pitch driving module, an impeller system, a wind generating set and a transportation method. The variable-pitch driving module comprises a supporting plate, a variable-pitch bearing, a variable-pitch control cabinet and at least one driving assembly, wherein the supporting plate is fixedly connected to a wheel hub; one end surface of a bearing outer ring of the variable-pitch bearing is fixedly connected to the supporting plate, and the end surface, away from the supporting plate, of a bearing inner ring of the variable-pitch bearing is used for being fixedly connected to blades; supports of the driving assemblies are fixedly connected to the supporting plate, and the power output ends of the driving assemblies are in transmission connection with the bearing inner ring through a gear meshing mode; and the variable-pitch control cabinet is fixedly connected to the supporting plate, and the variable-pitch control cabinet is further electrically connected to the driving assemblies. The variable-pitch driving module can be separately transported from the wheel hub, due to the fact that the wheel hub and the variable-pitch driving module are smaller than a hub assembly, the appearance size of the wheel hub and the appearance size of the variable-pitch driving module are easier to meet the limit conditions of the standard transportation size, and therefore the transportation difficulty is reduced.

The invention discloses an electric forklift driving system which comprises a wet-type mechanical brake driving system and an electromagnetic brake driving system, the wet-type mechanical brake driving system comprises a reduction gearbox and a motor, and the reduction gearbox comprises a wet-type mechanical brake system, a first-stage speed reducer, a second-stage speed reducer and an axle. Through meshing transmission of a helical gear of primary speed reduction and meshing transmission of a planetary gear train of secondary speed reduction of the reduction gearbox, high efficiency and low noise are achieved, meanwhile, integrated design of wet mechanical braking is achieved, and through the design of increasing or reducing friction plates, the braking requirements of electric forklifts of different tonnages are met, the universal design of wet-type mechanical brake components such as a brake rod and a pressing plate is achieved, the purpose of saving cost is achieved, the design of different versions of wet-type mechanical brake and electromagnetic brake of a driving system is achieved by changing the output shaft of the motor, and the requirements of different clients are met.

The invention discloses a high-fidelity reconfigurable satellite energy supply test equipment design system. The system comprises a high-fidelity energy supply simulation module which simulates and generates high-fidelity satellite energy supply V / I control parameters according to the on-orbit operation state of a satellite, and transmits the high-fidelity satellite energy supply V / I control parameters to a reconfigurable energy supply monitoring module; the reconfigurable energy supply monitoring module is used for receiving the V / I control parameters, recombining hardware resources of the power supply module, controlling the output of the power supply module and monitoring the working state of the power supply module; and the power supply module outputs voltage and current for satellitepower supply. According to the invention, a software dynamic recombination technology is adopted; power supply module resources are quickly reconstructed, the power supply requirements of different topological satellite power supplies are met. Meanwhile, high-fidelity simulation satellite energy supply output parameters are achieved, the power supply module is controlled to output high-fidelity V / I, the energy design of a satellite is verified, the electrical compatibility and the energy management capacity of whole satellite work of the satellite are verified, and good engineering applicationvalue is achieved.

The invention discloses a cardan universal joint type flap transmission mechanism. The cardan universal joint type flap transmission mechanism comprises a rotary block, connecting rods, swing arms, transmission rotary shafts, cardan universal joint assemblies and rolling bearings. The two ends of the rotary block are hinged to the connecting rods respectively. The connecting rods are hinged to one ends of the swing arms. The other ends of the swing arms are connected with the transmission rotary shafts. The rolling bearings are installed at the two ends of the transmission rotary shafts in an interference fit mode. The transmission rotary shafts are split into two sections for connection according to requirements through the cardan universal joint assemblies. The mechanism can effectively solve the problem that transmission accuracy is affected by small wing space, the long transmission path and wing bending deformation, can be widely applied to occasions with limited installation space and long-distance transmission, and is driven by a single power source, motion synchronism of a left flap and a right flap is good, the deflection symmetry of the flaps in the forward direction and the reverse direction is good, and response is reliable. Through refitting, the mechanism can be universal in design according to different types and different airload conditions.

The invention discloses a novel driving motor pot type base of an electric automobile and a manufacturing process thereof. The base comprises a cylindrical main body (1) and a back end cap (2), wherein the back end cap (2) is integrally formed with the main body (1), the front end surface of the main body (1) is uniformly provided with connecting thread holes (3) in the circumference direction, the front end of the inner surface of the main body (1) is provided with a front spigot (4), and the back end cap (2) is provided with a bearing chamber (2). The base has the advantages that the motor base and the back end cap are integrally formed, and the integral processing is adopted, so the assembly process of the motor is simplified, the assembly precision of the motor and the coaxiality of the base and the front end cap are improved, and the system noise is reduced; an aluminum base is adopted, so the weight of the base is reduced, the miniature and light-weight requirements of the driving motor of the electric automobile are met, the casting process is matured, the rust is avoided, and the environment-friendly requirement is met.

The invention discloses a server cabinet. The server cabinet comprises a cabinet body, first fixing strips detachably and vertically arranged on the two sides of the front end of the cabinet body, second fixing strips detachably and vertically arranged on the two sides of the front end of the cabinet body, first installation brackets detachably arranged on the two side walls of the cabinet body and used for installing an ODCC server, and second installation brackets detachably arranged on the two side walls of the cabinet body and used for installing an OCP server, wherein a plurality of first locking holes matched with the front end of the ODCC server are formed in the first fixing strips in the height direction, and a plurality of second locking holes used for being matched with the front end of the OCP server are formed in the second fixing strips in the height direction. Therefore, the ODCC server and the OCP server can be respectively installed, and the first fixing strips and the second fixing strips at the front end of the cabinet body are combined, so that the ODCC server and the OCP server can be respectively locked, the universal design of the whole cabinet is realized, the ODCC standard server and the OCP standard server are compatible, and the configuration cost is reduced.

The invention relates to the technical field of aerospace satellite internet constellation design, in particular to a typical Walker constellation mathematical model described by utilizing orbit elements, which comprises six orbit elements (aj, k, ej, k, ij, k, omega j, k, omega j, k, k, fj and k). The Walker constellation types comprise a star constellation, a delta constellation, a rose constellation and a sigma constellation; in the six elements of the orbit, aj, k, ej, k, ij, k, omegaj, k, omegaj and k jointly describe the constellation configuration of the Walker constellation, and fj andk describe the constellation operation state of the Walker constellation. When satellite internet constellation simulation is carried out, a simulation environment taking six elements of an orbit asinput can be built, so that the performance of a constellation system is analyzed, and the realization of universal design is facilitated.

The electronic control hydraulic proportional pressure reducing valve is provided with a valve body and a valve element, an adjusting cavity is formed in the valve body, the valve element is arranged in the adjusting cavity, and the side face of the valve element abuts against the side wall of the adjusting cavity to form sliding connection; a pilot valve cavity and a pilot valve cover are arranged at one end of the valve element, the pilot valve cover covers the outer end of the pilot valve cavity, and the pilot valve cover is detachably and fixedly connected with the valve element; the pilot valve cover is provided with a pilot valve sleeve and a pilot valve rod, and the pilot valve rod is inserted into and penetrates through the pilot valve sleeve to form movable connection; one end of the pilot valve rod is inserted into the pilot valve cavity, and the other end of the pilot valve rod abuts against the baffle; the side face of the valve element is provided with an adjusting groove communicated with the pilot valve cavity. The two ends of the valve body are provided with ports, the baffle is fixedly arranged in one port, and the other port is provided with a control mechanism. A circulating hole communicated with the channel opening is formed in the side surface of the valve body; the control mechanism adjusts the position of the valve element in the adjusting cavity, adjusts the pressure of hydraulic oil entering the pilot valve cavity through the inlet and conveys the hydraulic oil in the pilot valve cavity to the outlet.

The invention relates to a ground test system and method of a high-orbit satellite navigation receiver, belongs to a ground test system of a spacecraft comprehensive test, is particularly suitable for realizing the ground test system of the navigation receiver of a high-orbit satellite, has the capability of simulating and generating a high-orbit navigation signal, and is used for testing the high-orbit navigation receiver. And the integrated, automatic and universal design of the system is fully considered. According to the system, a function automation test case module and a data packet automatic interpretation module are adopted to solve the problems of low systematic comprehensive test efficiency and high dependence on people at present. And an automatic, integrated and universal test system is designed to realize subsystem test production line and process. The interpretation report is automatically generated to solve the long-term interpretation problem of large data volume, the test period is shortened, and the cost is reduced.

The invention discloses a method, device and medium for reporting and determining interest in a multicast broadcast service, comprising: a terminal reports the interested multicast broadcast service to a base station through a random access process. The base station determines the multicast broadcast service that the terminal is interested in according to the interested multicast broadcast service. Adoption of the present invention overcomes the deficiency that there is currently no scheme for reporting information interested in multicast broadcast services by terminals in the 5G system, and can effectively realize the reporting of terminal interest in multicast broadcast services, enabling the base station to make reasonable processing. Furthermore, this solution is applicable to connected terminals and idle / inactive terminals at the same time, realizing a universal design.

Disclosed are a novel whole-process surge current suppression generalization device based on PWM closed-loop control, and a control method. The device comprises a DSP controller, a MOSFET, an ADC sampling circuit and a sampling resistor; the sampling resistor can collect currents of a source and a drain of the MOSFET; the ADC sampling circuit can collects a voltage across the sampling resistor inreal time; the DSP controller periodically reads a collected result, and achieves real-time monitoring of the currents of the source and the drain of the MOSFET according to the collected result; and,when a surge current occurs, control for a voltage difference between a gate and the source of the MOSFET can be achieved through an adjustment for a duty ratio of a PWM output signal generated by the DSP controller itself. The device is used to suppress a surge current generated during initial power-on and subsequent step-by--step power-up of complex equipment used in a spacecraft. And the device has the same protection effect when a short circuit occurs due to latching or other faults of equipment.

The invention provides a test system of a multi-port radio frequency microwave chip. The test system comprises an automatic probe station with an objective table, a first table top and a second tabletop; the first table top is positioned above the objective table, and a direct-current probe card is arranged in the central area of the first table top; the second table top is located above the first table top, and a probe seat is arranged on the second table top; the automatic probe station and the probe seat are driven by a servo motor and can respectively perform three-dimensional movement inthe X-Y-Z direction; a PXI-e multifunctional test platform is used for providing a test signal for the direct-current probe card to realize direct-current characteristic test and monitoring of the to-be-tested chip; and a four-port vector network analyzer is used for providing the test signal for the radio frequency probe to realize radio frequency characteristic test of the chip to be tested. The test system of the multi-port radio frequency microwave chip is simple in structure, high in test parameter coverage, high in test efficiency, high in test precision, low in cost and high in test flexibility.

The invention discloses a radiator structure, an outdoor unit, an air conditioning unit and a control method, which relate to the technical field of air conditioning units, and solve the technical problem that the direction of radiating fins of a fixed radiator in the prior art is fixed, so that the radiating efficiency of the air conditioning unit cannot be maximized. The radiator structure comprises a heat dissipation module and a fixing module, the fixing module is provided with a first fixing part and a second fixing part, a part to be cooled is fixed to the first fixing part, the heat dissipation module comprises a plurality of heat dissipation fins which are parallel to one another and arranged at intervals, the heat dissipation module is rotatably installed at the second fixing part, and the heat dissipation fins are parallel to heat dissipation airflow. According to the radiator structure, downstream heat dissipation of the heat dissipation fins and a wind field can be achieved, and it is guaranteed that the heat dissipation efficiency is maximized; meanwhile, the universal design of the radiator structure can be achieved, and the same radiator structure can be suitable for different variable frequency air conditioning units.

The invention discloses a novel driving motor pot type base of an electric automobile and a manufacturing process thereof. The base comprises a cylindrical main body (1) and a back end cap (2), wherein the back end cap (2) is integrally formed with the main body (1), the front end surface of the main body (1) is uniformly provided with connecting thread holes (3) in the circumference direction, the front end of the inner surface of the main body (1) is provided with a front spigot (4), and the back end cap (2) is provided with a bearing chamber (2). The base has the advantages that the motor base and the back end cap are integrally formed, and the integral processing is adopted, so the assembly process of the motor is simplified, the assembly precision of the motor and the coaxiality of the base and the front end cap are improved, and the system noise is reduced; an aluminum base is adopted, so the weight of the base is reduced, the miniature and light-weight requirements of the driving motor of the electric automobile are met, the casting process is matured, the rust is avoided, and the environment-friendly requirement is met.

The invention relates to the technical field of optical filter film systems, in particular to an automatic design method for an optical filter film system, which comprises the following steps: S1, determining a solution space, S2, adjusting a central wavelength, S3, encoding structural parameters, S4, generating an initial population, S5, calculating optical characteristics, S6, calculating bandwidth and passband ripples, and S7, adapting an operator process. According to the automatic design method for the optical filter film system, the film system design work of an optical filter has the advantages of global optimization, easy programming implementation, small calculation amount, good optimization effect, automatic design and simple and convenient operation, and the film system design work of the optical filter is enabled to have the advantages of global optimization, easy programming implementation, small calculation amount, automatic design and simple and convenient operation.

The invention provides an assembly type foundation unit of a prefabricated cabin type transformer substation base of a whole station and the transformer substation base. The prefabricated cabin type transformer substation base is composed of the plurality of assembly type foundation units, and the plurality of assembly type foundation units are movably connected through birdmouths; each assembly type foundation unit comprises a bottom plate, two side plates and a top plate; and the bottom plate is connected with the two side plates, the top plate is connected with the two side plates, and the bottom plate, the two side plates and the top plate are assembled to form an integral structure. According to the assembly type foundation unit, the universal design and standardized production of the assembly type box-type foundation unit can be realized; a component formed by the single foundation unit is light in weight, high in strength, convenient to transport, ecological and environment-friendly; and the assembled box type foundation units are adopted, mechanical construction can be achieved, the construction efficiency is improved, the project construction period is shortened, and the engineering cost is saved, so that the assembled box type foundation units are worthy of being popularized and used in power transformation engineering of modular construction.

The invention discloses a multicast broadcast service interest reporting and determining method, equipment and a medium. The method comprises the step that a terminal reports an interested multicast broadcast service to a base station through a random access process; and the base station determines the multicast broadcast service in which the terminal is interested according to the multicast broadcast service in which the terminal is interested. By adopting the method, the defect that a scheme for reporting the information interested in the multicast broadcast service by the terminal of the 5G system does not exist at present is overcome, the reporting of the interest of the terminal in the multicast broadcast service can be effectively realized, and a base station can carry out reasonable processing. Furthermore, the scheme is suitable for a connected terminal and an idle / inactive terminal at the same time, and universal design is realized.

The invention provides an unlocking device and its application in a spacecraft landing stability test, belonging to the design field of spacecraft ground landing test devices. The unlocking device includes a side plate, a lock hook, a first elastic member, a push rod and a power assembly, wherein the push rod and the lock hook are respectively hinged on the side plate, one end of the first elastic member is connected to the lock hook, and the other end is connected to the side plate. Plate connection, the lock hook is provided with a limit protrusion, and the power component is arranged on the side plate. When locked, the second end of the push rod is located at the limit protrusion, so that the lock hook is in the first position. When released, The power assembly drives the push rod to rotate, so that the second end is separated from the position-limiting protrusion, and the lock hook is separated from the first position under the contraction or pressing force of the first elastic member. The structure improves the safety and reliability of the unlocking and separation of the fixed rope, and reduces the disturbance of the landing attitude of the spacecraft caused by the separation of the fixed rope; the unlocking device can be used repeatedly, which greatly reduces the test cost.

The invention discloses a universal wind measurement laser radar receiving and transmitting combined telescope device which comprises a telescope device body, the telescope device body is connected with a circulator, the telescope device body comprises a collimation coupling mirror, a beam expanding mirror and a compensating mirror, the collimation coupling mirror and the beam expanding mirror are arranged in a threaded connection mode, and the beam expanding mirror is arranged in a Galileo mode and is composed of a concave lens and a convex lens. By arranging the detachable collimation coupling mirror, the telescope device can be suitable for wind measurement laser radars of two schemes of an optical fiber circulator and a spatial optical circulator at the same time, the problems that existing wind measurement laser radars need to be designed separately and do not have formed products are solved, and universal design is achieved; meanwhile, the optical aberration of a telescope system is reduced through the compensating mirror, and a good imaging effect is achieved.

The invention relates to an elevator car and a mounting method. The elevator car comprises a car roof, a car bottom, supporting columns and wall plates. One ends of the supporting columns are connected to the car roof and the other ends are connected to the car bottom. The left wall plates are arranged at the left side of the car bottom and connected with the supporting column at the left side. The at least two left wall plates are arranged in the height direction of the corresponding supporting column, and a horizontal abutted seam is formed between every two adjacent left wall plates. The right wall plates are arranged at the right side of the car bottom and connected with the supporting column at the right side. The at least two right wall plates are arranged in the height direction ofthe corresponding supporting column, and a horizontal abutted seam is formed between every two adjacent right wall plates. The rear wall plates are arranged at the rear portion of the car bottom and connected with the rear supporting column. The at least two rear wall plates are arranged in the height direction of the corresponding supporting column, and the horizontal abutted seam is formed between every two adjacent rear wall plates. One sides of the rear wall plates are connected to the corresponding left wall plates, and the other sides of the rear wall plates are connected to the corresponding right wall plates. Thus, universalization of connection between the wall plates and the car bottom can be achieved, a single person can complete installation of the wall plates in the car, and installation of a handicapped operation box is facilitated.

The invention provides a low-voltage intelligent double-power-source change-over switch. A main power source, a secondary power source, a load power source wiring port, a red indicator lamp, a green indicator lamp, a liquid crystal display, a communication interface and various keys are arranged on a switch cover of the low-voltage intelligent double-power-source change-over switch; four driving energy-storage capacitors and a sampling circuit board are mounted in a left cavity of a switch base of the low-voltage intelligent double-power-source change-over switch; a main charging module, a secondary charging module, a main automatic voltage transformer, a secondary automatic voltage transformer, and three voltage mutual inductors are mounted on the sampling circuit board; a secondary capacitor and a control circuit board are mounted in a right cavity of the switch base; a main power source module, a secondary power source module, a main processor and a secondary processor are mounted on the control circuit board; four vacuum electromagnetic driving change-over switches respectively controlling an A phase power source, a B phase power source, a C phase power source and an N phase poser source are mounted in a middle cavity of the switch base; and a main power source lead-in wiring end, a secondary power source lead-in wiring end and a load power source lead-out sleeve are arranged on the switch. The invention provides a carrier capable of being actually applied to realizing the comprehensive intelligentization of functions of digital signal collection, processing, control and communication, and has the advantages of small size, compact structure, and convenience in utilization and installation.

The invention discloses a rear beam structure, a body frame assembly and an automobile, and relates to the technical field of automobiles, comprising: a first rear beam upper plate and a second rear beam upper plate; a rear beam lower plate, a rear beam lower plate and a first rear beam lower plate The upper plate of the rear beam or the upper plate of the second rear beam is connected; the outer plate of the rear beam is connected with the upper plate of the second rear beam; the upper plate of the first rear beam and the lower plate of the rear beam form the first rear beam structure. The beam structure is used for sheet metal roof vehicles; the upper plate of the second rear beam, the lower plate of the rear beam and the outer plate of the rear beam form the second rear beam structure, and the second rear beam structure is used for the roof car; A rear cross member structure and a second rear cross member structure are respectively adapted to the sheet metal roof and canopy roof vehicles, and both the second rear cross member structure and the first rear cross member structure can be connected with the side panel outer panel and the D-pillar structure in the same connection form. Connection, realize the universal design of the rear beam structure, save design and production costs.