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336results about How to "Implement automatic conversion" patented technology

An intelligent protocol conversion device and method based on embedded QNX operating system

The invention provides a device and a method for intelligent terms conversion. The device comprises a DSP central processing chip, a memory module, a display and keyboard operation module and an uplink-downlink communication module, wherein the memory module, the display and keyboard operation module and the uplink-downlink communication module are connected with the DSP central processing modulerespectively, a front-end computer communication module is connected with a front-end computer through a RS-232 bus, a RS-232 communication module is connected with a plurality of sub-stations RTU bya serial expansion circuit, a term converter is arranged between the RTU and the front-end compute of a power communication system, the uploaded communication protocol of the sub-stations RTU are intelligently recognized by a fuzzy expert system, the format of the recognized terms are converted into a unified terms format, uploaded to the front-end computer, and uploaded to each level of workstation by the front-end computer. The invention has the advantages that operators can realize automatic recognition and conversion of terms of interconnected two parties by the device without knowing theterms types of the interconnected two parties, thus avoiding the error possibly brought by manual operation.
Owner:NORTHEASTERN UNIV +2

Rotary decelerating and braking energy recovery system of hydraulic excavator

The invention discloses a rotary decelerating and braking energy recovery system of a hydraulic excavator, comprising two valve blocks. Each valve block is provided with a hydraulic control unloading valve, a hydraulic control conversion valve, a hydraulic control reversing valve and two one-way valves; in each valve block, the hydraulic control reversing valve is respectively communicated with a multi-way valve, the hydraulic control conversion valve, the hydraulic control unloading valve, the second one-way valve, a pilot oil path control handle and a rotary motor; the second one-way valve is communicated with a energy accumulator; the hydraulic control conversion valve and the hydraulic control unloading valve are communicated with the energy accumulator via the first one-way valve; the multi-way valve is respectively communicated with the hydraulic control conversion valve and the hydraulic control unloading valve via the first one-way valve; the hydraulic pump and the controller are connected with the second pressure sensor; and the energy accumulator and the controller are connected with the first pressure sensor. The invention enables the hydraulic excavator to automatically judge the motion state of the rotary system and recover the braking energy and enables the engine to work in the high-efficiency interval.
Owner:ZHEJIANG UNIV

Novel pipe inner wall processing device

The invention discloses a novel pipe inner wall processing device. The novel pipe inner wall processing device comprises a rotary arm and a rotary cylinder connected with a drive device. Mounting grooves with outward openings are vertically and symmetrically formed in the rotary cylinder. A switching structure is arranged in each mounting groove. Movable grooves communicating with the mounting grooves are vertically and symmetrically formed in the rotary cylinder. A jacking press structure is arranged on each movable groove. A sliding groove is formed in the portion, located between the uppermovable groove and the lower movable groove, in the rotary cylinder. A drive structure is arranged in the sliding groove. A cavity communicating with the movable grooves is formed in the portion, on the right side of the sliding groove, of the rotary cylinder. The right side of the sliding groove extends into the cavity. The drive structure comprises a first motor fixedly arranged in the sliding groove, sliding sleeves and sliding blocks, wherein the sliding sleeves and the sliding blocks are slidably arranged in the sliding groove and located on the left side and the right side of the first motor. Threaded holes are correspondingly formed in the sliding sleeves and the sliding blocks. Threaded rods are mounted in the threaded holes in a threaded fit manner.
Owner:陈军

Urban and rural planning data conversion method and system and computer readable storage medium

InactiveCN109977162AImplement batch conversionGuaranteed lossless conversionDatabase management systemsSpecial data processing applicationsData operationsOriginal data
The invention provides an urban and rural planning data conversion method and system and a computer readable storage medium. The method comprises the steps of constructing a data conversion model based on semantic mapping; extracting the urban and rural planning original data needing to be converted from the data source; converting the urban and rural planning original data into urban and rural planning target data according to the data conversion model; carrying out data cleaning processing on the urban and rural planning target data so as to filter data which do not meet requirements; and loading and collecting the cleaned urban and rural planning target data to generate an urban and rural planning target database. According to the method, the automatic conversion of urban and rural planning data is achieved, managers who are not familiar with the urban and rural planning data operation can conveniently and rapidly modify the warehoused planning results, and the workload of the dataconversion is reduced to the maximum extent; meanwhile, the batch conversion of multiple pieces of data is achieved, and the lossless conversion of the data can be guaranteed while the working efficiency is improved.
Owner:GUANGDONG URBAN & RURAL PLANNING & DESIGN INST

Code conversion method and device used for numerical control system

The invention provides a code conversion method and a device used for a numerical control system. The method comprises the following steps: obtaining CAM processing codes by a communication server according to transmission requests initiated by the service end of a machine tool to be processed; selecting a special code format matched with the machine tool to be processed from a database file by the communication server according to the transmission requests, wherein the database file is used for recording the matching relationship between the numerical control machine tool of the specific model and the special code format thereof; converting the CAM processing codes by the communication server according to the special code format to obtain the special processing code capable of being recognized by the machine tool to be processed; and sending the special processing code to the service end of the machine tool to be processed. The invention shortens the code conversion time, lowers the fault rate during batch production or processing of complicated parts, further improves the code conversion efficiency, and is favorable for improving the numerical control processing quality after the code conversion, so the invention overcomes the problem of low code conversion efficiency of a code conversion method in the correlation technique.
Owner:CAXA TECH

Atmospheric automatic monitoring apparatus capable of realizing sampling/calibrating alternative equivalent operation, and method thereof

The invention relates to an atmospheric automatic monitoring apparatus capable of realizing sampling/calibrating alternative equivalent operation, and a method thereof. An air path center system is arranged, a standard gas introduction mode during apparatus calibration is improved, and a relay connects a dynamic calibrator, a solenoid valve and a sampling pump; when calibration is carried out, the dynamic calibrator is started, and the solenoid valve and the sampling pump are closed through powering off the relay; and when sampling is carried out, the dynamic calibrator is closed, and the solenoid valve and the sampling pump are started through powering on the relay in order to realize the alternative equivalent operation process of calibrating/sampling. An air acquisition system is a sampling head, a standard gas generation system comprises a standard gas tank, a zero gas generator and the dynamic calibrator, the air path center system comprises an air path center channel, an intelligent transition control system comprises the sampling pump, the solenoid valve and the relay, a temperature control device comprises a humiture probe and asensor, a humiture controller and a heat insulation cover, and a pollutant analysis system comprises a plurality of filtering devices and an analyzer.
Owner:中山市环境监测站

Fault-tolerant system and method for adjusting error correcting codes adaptively

The invention discloses a fault-tolerant system and method for adjusting error correcting codes adaptively. The fault-tolerant system comprises an environmental information sensing module, a fault-tolerant scheme selection module, an error correcting module and an object processing module. The environmental information sensing module is connected with the fault-tolerant scheme selection module and is used for obtaining information of factors which influence the reliability of data stored in the object processing module. The fault-tolerant scheme selection module is connected with the environmental information sensing module and the error correcting module and selects a mould generation and output fault-tolerant scheme according to the received reliability influence factors from the environmental information sensing module and the feedback object processing module health degree from the error correcting module. The error correcting module receives the fault-tolerant scheme transmitted from the fault-tolerant scheme selection module and is used for defecting and correcting the errors in the data transmitted by the object processing module. The object processing module is connected with the error correcting module and is used for initiating data read-write control operation, sending original data and tasks to the error correcting module and storing reliable data output by the error correcting module.
Owner:INST OF AUTOMATION CHINESE ACAD OF SCI

Multi-motion-mode movable parallel mechanism and control method thereof

The invention belongs to the technical field of motion control, and discloses a multi-motion-mode movable parallel mechanism. The mechanism comprises an upper platform and a lower platform which are of a parallelogram structure, the upper platform and the lower platform are arranged in parallel, a plurality of chains are arranged between the upper platform and the lower platform, and the chains are arranged in parallel. Each chain comprises three rotating pairs and a moving pair, the tail ends and the front ends of the rotating pairs and the moving pairs are connected with the upper platform and the lower platform through steering engines, and the axial center lines of rotating shafts of all the rotating pairs are parallel to each other and are parallel to the same side of the upper platform or the lower platform. The invention further discloses a control method of the multi-motion-mode movable parallel mechanism. The steering engines are used for controlling the rotation of the corresponding first and second rotating pairs to drive the corresponding third rotating pairs to rotate, so that the corresponding chains are controlled to be continuously bent and straightened, alternate landing of the upper platform and the lower platform is realized, and then a rolling mode of the movable parallel mechanism is achieved.
Owner:SHANGHAI UNIV OF ENG SCI

Computer hardware platform design method based on DSP (digital signal processor) and FPGA (field programmable gate array)

A computer hardware platform design method based on a DSP (digital signal processor) and an FPGA (field programmable gate array) includes the steps: utilizing the DSP and the FPGA as a core to expand a program load module, a data storage module, an analog input module, an analog output module, a switching value input module, a switching value output module, a serial port communication module, a 1553B communication module, a reset circuit and a power circuit, so that an embedded computer hardware platform is built; and acquiring the analog quantity and the switching value, realizing high-capacity program and data storage and a complicated algorithm, realizing communication of the embedded computer hardware platform with peripherals, and controlling the embedded computer hardware platform. By the aid of the method, automatic switching of analog signal input and output is realized, switching value signal input and output are freely expanded, operating efficiency of a processor is greatly improved, systematic resources are saved, development cycle is shortened, and development cost is reduced. Another novel hardware design platform can be completed only by changing codes of the FPGA.
Owner:XIAN KEYWAY TECH +1

Mobile photovoltaic power generation and off-peak electricity energy storage control system for lithium batteries

The invention relates to the field of energy storage systems for lithium batteries, in particular to a mobile energy storage control system for lithium batteries. The mobile energy storage control system comprises a solar panel set, a bus unit, an access switching unit, an energy storage chopping unit, a battery equalizer, an energy storage lithium battery set and a system controller, and is characterized in that a channel of control contact points of the access switching unit is sequentially connected with a bidirectional inverter and an electric switching unit, and the electric switching unit is respectively connected with a supply network, an electric load and the system controller; and a system computer in the system controller is respectively connected with the bus unit, the access switching unit, the bidirectional inverter, the energy storage chopping unit, the battery equalizer, a battery temperature detecting unit and the electric switching unit by Profibus-DP (decentralized periphery) and Modbus field buses to form an intelligent network control system. Compared with the prior art, the mobile energy storage control system has the advantages that photovoltaic power generation is integrated with off-peak electricity utilization, photovoltaic power generation is implemented and generated electricity is stored in daytime when sunlight is sufficient, and off-peak electricity is stored at night.
Owner:LIAONING KAIXIN NEW ENERGY TECH

Substation area control method and system of microgrid operation mode

The invention relates to a substation area control method and system of a microgrid operation mode. The substation area control method comprises the following steps of: when a power generation system is subjected to grid-connected power generation according to a first operation mode, if an island operation state appears and a grid-connected power generation mode exits, judging whether the low voltage side of a transformer for a substation corresponding to a second operation mode of the power generation system has voltage, judging which state automatic throw-in equipment of emergency power supply is; if the low voltage side has voltage and is in a commissioning state, receiving correct action formation of the automatic throw-in equipment of emergency power supply and starting the second operation mode; and if the low voltage side does not have voltage or the automatic throw-in equipment of emergency power supply is in an exit state, or the correct action information of the automatic throw-in equipment of emergency power supply is not received within preset time, locking the automatic throw-in equipment of emergency power supply and then starting the microgrid operation mode. According to the substation area control method and system, concentrated judgment and computation are carried out by acquiring real-time operation information of parts in the substation transformer area, which are related to the power generation system, and effective control based on the substation-grid microgrid operation mode is achieved.
Owner:ZHUHAI POWER SUPPLY BUREAU GUANGDONG POWER GIRD CO

Automatic flower watering and soil loosening device and flower watering and soil loosening process

The invention relates to an automatic flower watering and soil loosening device and a flower watering and soil loosening process. The automatic flower watering and soil loosening device comprises a platform mechanism, a gear shift mechanism, a control mechanism, a water tank, a water pump and a servo motor; the platform mechanism comprises a top platform, a middle platform and a bottom platform which are mutually parallel and rotatable from top to bottom, and the servo motor is arranged under the middle of the bottom platform; the top platform is connected with flower scoops through a flower scoop connecting rod, and the flower scoop connecting rod is further provided with a vertical telescopic mechanism; the middle platform is a circular platform, the inner portion of the middle platformis provided with a planetary gear mechanism, flowerpots are arranged above planet wheels, and the rotation of the planet wheels can drive the flowerpots to rotate; the inner portion of the bottom platform is provided with a water storage groove, the water storage groove is communicated with water pipes and shower nozzles which are arranged on the bottom platform and is connected with the water tank through a pipeline, and the water pump is arranged on the pipeline; and the flower scoops and the shower nozzles are arranged above the flowerpots. The automatic flower watering and soil loosening device can carry out automatic flower watering and soil loosening on multiple flowerpots according to the temperature, humidity and oxygen content of the flowerpots, thereby relieving people's worries.
Owner:SHANGHAI OCEAN UNIV

Fault tree generation method for extended UML class diagram model of safety-critical system

The embodiment of the invention provides a fault tree generation method for an extended UML class diagram model of a safety-critical system. The method comprises the steps of constructing the UML class diagram model of the safety-critical system, wherein all classes in the UML class diagram model comprise attributes and operations and have a certain relation, and the element semantics of the model is extended by a stereotype; storing the UML class diagram model into a file with a set format, analyzing the file with the set format corresponding to the UML class diagram model by a set information extraction algorithm to extract all the classes and the attributes and the operation information which correspond to all the classes in the UML class diagram model, and generating a fault tree of the UML class diagram model according to a set fault tree generation algorithm. According to the method disclosed by the embodiment of the invention, relevant safety analysis information is successfully embedded into the designed model of the safety-critical system, so that automatic conversion between the designed model of the system and a safety model of the system is realized, and the design fault of the safety-critical system can be effectively overcome.
Owner:BEIJING JIAOTONG UNIV
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