31results about How to "Reduce control logic" patented technology

A digital transmission circuit and method providing selectable power consumption via multiple weighted driver slices improves the flexibility of an interface while reducing transmitter power consumption, area and complexity when possible. A cascaded series of driver stages is provided by a set of parallel slices and a control logic that activates one or more of the slices, which combine to produce a cascaded active driver circuit. The power consumption/drive level selectability of the slice combination provides a driver that can be fine-tuned to particular applications to provide the required performance at a minimum power consumption level.

The invention provides a heat pump unit control method and device, a storage medium and a heat pump unit. The heat pump unit control method comprises the following steps of judgment step and executingthe step, wherein the judgment step is used for judging whether the four-way valve is electrified or not in the heating mode; the executing the step and is used for judging whether the four-way valvereversing is abnormal or not in the judgment step, and a first operation is executed; the first operation comprises the steps that the four-way valve is powered down, the frequency of the compressoris executed to be increased to a preset frequency, the operation of the indoor outer fan or the indoor water pump is stopped and the opening degree of the throttling device is adjusted to at least oneof a preset opening degree. According to the heat pump unit control method and device, the voltage difference of the four-way valve can be improved in a short time, the normal reversing function of the four-way valve can be realized fast and effectively.

The invention relates to the technical field of hydrogen power generation devices. The invention discloses a power generation device capable of continuously generating hydrogen. The device comprises ahydrogen generation system and a fuel cell power supply system, the hydrogen generation system comprises a plurality of mutually independent solid hydrogen storage devices, a water supply unit and agas transmission unit, the water supply unit can only inject reaction water into one solid hydrogen storage device at one time and discharge the reaction water when the volume of the reaction water inthe solid hydrogen storage device is greater than a threshold value or the temperature in the solid hydrogen storage device is greater than a threshold value; when the hydrogen flow in the solid hydrogen storage device is less than the power supply requirement of the fuel cell power supply system; and the water supply unit pumps out the reaction water in the solid hydrogen storage device, and supplies water to the next solid hydrogen storage device according to the power generation requirement of the fuel cell power supply system after the reaction of raw materials in the solid hydrogen storage device is finished, so that hydrogen can be continuously produced, and the purpose of power generation is achieved.

The claimed invention relates to efficient use of data for multiple reference picture motion estimation. Multiple reference picture motion estimation involves a large amount of data due to the processing of multiple reference pictures. The claimed invention discloses a method 101 and a system for implementing this method to reduce the memory size required for data storage and the bandwidth required for data loading. The claimed invention thus improves the efficiency of performing multiple reference picture motion estimation.

The invention relates to the field of photoelectric communication, and discloses a data transmission method and a data transmission system for a digital video optical transceiver system. According to the data transmission method and the data transmission system, coding redundancy is adjusted according to the error rate, whether or not a forward error correction coding mode is needed and which forward error correction decoding mode of the coding redundancy is adopted are determined dynamically, and accordingly, forward error correction coding/decoding technology based adaptive error detection and correction are achieved. The data transmission method includes receiving video data and information representing the coding redundancy of the video data through an optical fiber; selecting the corresponding forward error correction decoding mode to decode the video data according to the information representing the coding redundancy; calculating the error rate of the decoded video data; adjusting the coding redundancy according to the error rate; according to the adjusted coding redundancy, selecting the corresponding forward error correction coding mode to code the to-be-sent video data; sending the video data and the information representing the coding redundancy through the optical fiber.

The invention provides a floating point processing unit integration circuit of an of RISC processor. The circuit comprises seven stages of fixed point pipelines, six stages of floating point pipelines and an and gate. An integration method includes the steps of controlling and managing processor pipeline stall and executing and controlling all the stages of the floating point pipelines. The floating point pipelines are correspondingly set, a storage access module access control logic and an exception handling module exception handling logic in the fixed point pipelines are used together, in this way, the floating point integration structure is made clear, less modification is conducted on the original fixed point pipeline design logic while the original fixed point processor logic is fully utilized, the control logic of the floating point pipes is reduced, and power consumption is lowered; the integration method has the universality, cooperative work of the fixed point pipelines and the floating point pipelines is achieved, fixed point command execution and floating point command execution are jointly achieved, reading of two source operands and writing-in of one operation result are completed within one clock period without other special waiting periods, and efficiency is high.

The invention relates to the technical field of intelligent attendance checking, and particularly relates to an attendance checking system and method based on intelligent access control. The system comprises an attendance checking terminal and a cloud platform, wherein the attendance checking terminal is used for obtaining an uploading result of attendance checking information when the attendancechecking information is uploaded; and when the uploading result of the attendance checking information is uploading failure, the attendance checking terminal is further used for recording the attendance checking information, and when the uploading result of the attendance checking information is uploading success, the attendance checking terminal is also used for uploading the recorded attendancechecking information. By adopting the scheme, the attendance checking information can be stored in the attendance checking terminal when the network connection fails, the stored attendance checking information is uploaded to the cloud platform when the network connection is recovered, and the attendance records of all employees are ensured to be completely uploaded to the cloud platform by continuously uploading the attendance checking information; meanwhile, related control logic of the attendance checking terminal about the networking request can be reduced, and the development cost and thedevelopment time are reduced; and compared with continuous sending of networking requests, the power consumption of the attendance checking terminal can also be reduced.

The invention relates to a universal multi-path permanent magnet synchronous alternating current servo motor controller. The controller mainly comprises a main control board, a motor driving board, anIGBT module, a capacitor, a current sensor, a connector, a radiator, a case and the like. The controller is advantaged in that one servo motor controller can control one or at most four motors according to needs, a hardware platform is high in universality, the selection flexibility of the number of the motors is high, the design concept of integration and light weight is adopted for the whole servo motor controller, and diversified requirements of customers for servo motor control can be met.

The invention discloses a bitmap calculation method and device, equipment and a storage medium. The method includes: acquiring an operation chain of calculation operations on a plurality of target bitmaps; converting the operation chain to an operation tree of a tree structure which can be run; and running the operation tree, and carrying out bitmap calculation. According to the solution of the embodiment of the invention, the dependency relationship tree among the operations is automatically generated according to the operation chain of the plurality of target bitmaps to simplify logic of thecomplex bitmap operations, and control logic of a user on intermediate results is saved.

The invention discloses an air inlet valve of an oil-free screw compressor. The air inlet valve comprises a valve cover, a valve body, a valve plate, a valve rod, an elastic mechanism, a valve seat and a silencer; the valve body is connected with the valve seat, the valve seat is provided with an oil-free compressor exhaust cavity, and the silencer and the oil-free compressor exhaust cavity are provided with a connecting channel; the first end of the valve rod is connected with the valve plate capable of controlling suction flow of the compressor, the second end of the valve rod is provided with a sealing mechanism, and a connector of the valve rod is close to the oil-free compressor exhaust cavity; the valve plate is arranged close to the valve cover and can be opened or closed under the driving of the valve rod; a hydraulic cavity is formed inside the valve body, and the sealing mechanism is arranged in the hydraulic cavity; in the hydraulic cavity, hydraulic oil can be injected into the first side of the sealing mechanism; and the elastic mechanism is arranged on the second side of the sealing mechanism. According to the air inlet valve of the oil-free screw compressor, the size of the air inlet valve the oil-free screw compressor can be effectively reduced, the structure of the air inlet valve of the oil-free screw compressor is simplified, and the stability of the valve during operation is improved.

The invention provides a lubricating oil valve controlled by bypass air. The lubricating oil valve comprises a valve shell with a containing cavity, a T-shaped valve element, a blanking cap and a spring, wherein a lubricating oil inlet is formed in the side edge of the valve shell, a lubricating oil outlet is formed in the lower end of the valve shell, and the lubricating oil outlet communicates with the lubricating oil inlet; a step part is arranged in the middle of the valve shell; a bypass air inlet communicating with the containing cavity is formed in the step part; the T-shaped valve element is arranged in the containing cavity and can adjust the lubricating oil circulation amount between the lubricating oil inlet and the lubricating oil outlet; a sealing groove is formed in the outer side of the T-shaped valve element; a piston ring is arranged in the sealing groove; an outer guide sleeve of the spring is arranged on the T-shaped valve element; a sealing ring is arranged between the end of the T-shaped valve element and the valve shell; the blanking cap is fixedly connected with the valve shell,;a through hole communicating with the atmospheric environment is formed in the blanking cap; an inner guide of the spring is arranged on the blanking cap; and the spring is arranged between the T-shaped valve element and the blanking cap. By building a steady-state control model of the lubricating oil valve in a low state and a steady-state control model of the lubricating oil valve in a high state, opening and closing of the lubricating oil valve under bypass air control are achieved.