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

The invention discloses an anti-blocking material device, comprising: an anti-blocking flapping main body, an elastic material body arranged on a mesh surface of a screen mesh to automatically flap and prevent blocking the screen mesh; the anti-blocking flapping main body comprises a plurality of series connected The flapping unit; the flapping unit includes a flapping whip rod and a flapping whip head; the hardness of the flapping whip rod is smaller than that of the flapping whip head. Also disclosed is a screening machine with an anti-blocking material device, comprising: a screening machine driving unit, a screening machine excitation unit, a screen mesh unit and an anti-blocking material device arranged on the screen mesh surface of the screen mesh unit. The anti-blocking device does not need to set up a power device, and is directly installed on the screen surface to rely on the vibration of the screening machine to automatically beat the screen, which realizes the energy saving and simplification of the screening machine, reduces the maintenance period of the screening machine, and prolongs the The service life of the screening machine is prolonged, and the universal design is realized.

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 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 present invention provides a 1553B bus data communication method and system, which is applied in an embedded operating system, and the embedded operating system is loaded with a driver program and an application program of a bus controller BC; the method includes: Step S1: All data packets are divided into single messages of no more than 32 words; Step S2: BC sends a single message to RT according to the rotating RT subaddress, and agrees on the data transmission protocol in the message content; Step S3: RT follows the single message interruption method, The single messages transmitted by each RT sub-address are sequentially received, and protocol analysis is performed on the single messages. The present invention simplifies the interface between the 1553B bus application program and the driver program, realizes the general design of the 1553B bus driver software, and reduces the development difficulty of the 1553B bus application program through the transparent and standardized design of the driver software to the application software. Improve software development efficiency.

The present invention involves a display driver, which includes at least the processing module, and the processing module is connected to the analog signal interface, digital signal interface, and display interface interface. Among themInformation; Digital signal interface is used to enter the digital signal information corresponding to the resolution, color, and refresh rate of the screen; the processing module is used to process the analog signal information and digital signal information to obtain the display of the display screen;It is used to display according to the display of the display signal drive signal. In this way, different types of display signal access can be achieved, and the general design of the board card can be achieved.The reliability and maintenance of the system.

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 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.