2162results about How to "Reduce development difficulty" patented technology

The invention discloses an optimizing and dispatching method for microgrid economical operation on the basis of multiple time scale coordination, comprising the following steps: dividing microgrid economical operation into two time scales, namely a dayahead plan and real-time dispatching; in the dayahead plan, dividing one dispatching period into a plurality of time intervals, and modelling into a mixed integer linear programming program based on the dayahead prediction data; and during the real-time dispatching period, complying with the startup and halt result of the dayahead plan, and modelling into a nonlinear plan based on real-time ultra-short term prediction data. In the optimizing and dispatching method, the coordinated mechanism of two time scales is designed, the dispatching scheme obtained with the method not only can satisfy the economic factors of a long time scale but also can satisfy safe operation constraints, such as the inner microgrid voltage, carrying capacity and the like of short time scales, and the capacity fluctuation of new energy is smoothened. The method is suitable for optimizing and dispatching economical operation in the parallel and single network operation of a micro power grid composed of a controllable power supply, an uncontrolled power supply and energy storage equipment of any type and any volume proportion.

The invention discloses an on-line upgrade method for embedded system firmware. A non-volatile memory is divided into two areas, the subareas to which a bootloader and a tiny_os belonging are protected, and an upgrade script is operated under the tiny_os to realize upgrading; the corresponding download request is provided by busybox of an open source; the support to a file system, a tcp / ip protocol stack and the like is provided by the tiny_os; the corresponding download request adopts dynamic linking technology and is shared with system software; different parameters are transmitted to a kernel through the bootloader, so as to tell upgrade operation from normal operation; and the entire upgrade system is only required to enlarge a storage space of about 400K, a plurality of download protocols and file systems can be supported. The invention further provides a spare upgrade method, so that when the subarea of the system software is damaged accidentally, the system upgrading also can be carried out, and the reliability and the safety of upgrading are ensured.

The invention relates to a high-speed photoelectric subassembly and a flip chip structure thereof. The flip chip structure comprises an insulating substrate, a photoelectric conversion chip and at least one correlative electronic chip, wherein a flip surface of the photoelectric conversion chip is connected with the insulating substrate through at least one pad; a flip surface of the correlative electronic chip is connected with the insulating substrate through at least one pad; a high-speed transmission circuit is arranged between the correlative electronic chip and the photoelectric conversion chip; another high-speed transmission circuit is arranged between the correlative electronic chip and a high-speed electric signal port of a packaging apparatus; a periphery circuit of a chip is arranged among the photoelectric conversion chip, a correlative electric chip and other parts of the packaging apparatus; and the pads, the high-speed transmission circuits and the periphery circuit of the chip form a metal film circuit on the insulating substrate.

The invention provides a management system of data processing for flow, which comprises an interface module, a service module of working flow, a representative module of working flow, an engine of working flow, a working flow module and at least a task processing module, wherein the interface module is used to change the request of the user interface to business event and notice the service module of working flow, the service module of working flow is used to provide uniform working flow service for the various users and call the representative module of working flow when receiving the notice from the interface module, the representative module of working flow is used for the engine of working flow which provides various specific working flows and complete the data conversion between the service module of working flow and the engine of working flow, the engine of working flow is used to deliver task case to the working list of the task executor according to the model of working flow, the model of working flow is used to record the relative information of the business flow, the task processing module, which is linked with the working list, is used to receive activation and complete relative processing procedure of task data. The invention can support large-scale and complex working flow management which is cross organization and quickly adapt for the need of changed business.

The invention discloses a J2EE-based data persistence method and a J2EE-based data persistence system. The method comprises the following steps of: 1) performing mapping metadata marking on a persisted Java category by using an annotating language associated with an underlying database; 2) constructing a Java category target to be persisted and assigning the attribute value of the target; 3) constructing a Java entity target query tree; and 4) calling a persisted interface to perform persisting operation by using the constructed Java category target to be persisted and the Java entity target query tree as parameters. The system comprises a data type adaptor, a query language resolver and a manipulation language resolver. The method and the system of the invention overcome the defect of 'impedance mismatch' between the Java entity target and the underlying database, shield the difference of interfaces provided for an information system by a heterogeneous database, do not depend on any scripting language, call the Java interface in the whole process completely and reduce the development difficulty of a persisted layer.

The invention discloses an application program debugging method under an embedded multi-core environment, and belongs to application program debugging methods. The application program debugging method solves the problems that an existing debugging method cannot be independent from an operation system, is not applicable to debugging when more than two cores exist and is not comprehensive enough in function. The application program debugging method under the embedded multi-core environment comprises the steps of remote connection establishing, debugging instruction sending, debugging instruction analyzing, thread core binding, breakpoint inserting, breakpoint inquiring, breakpoint deleting, single-step executing, continuous execution, execution until ending, variable checking, thread operation core checking, core operation thread obtaining and thread operation time counting. The application program debugging method under the embedded multi-core environment can be independent from the operation system and an embedded development tool to conduct debugging on application programs and is comprehensive in debugging function, a debugger at the end of a host machine can know about the basic conditions of application program running and more accurately locate various abnormal conditions of application program running, and the application program debugging efficiency is improved.

The invention discloses detection equipment and a detection method. The detection equipment comprises a sampling device used for collecting a sample to be detected, a preprocessing sample injection device used for preprocessing the sample from the sampling device, and a sample analysis device used for separating the preprocessed sample from the preprocessing sample injection device and analyzing the separated sample. The detection equipment is miniaturized, can quickly and accurately detect gas-phase matters or particulate matters without unpacking, and is high in accuracy and suitable for security check of airports, ports, metro stations and the like.

The invention provides a measurement and control communication method for a deep space probe and a measurement and control communication system for a deep space probe. The method is used for achieving information interaction between an earth station and a deep space probe and measurement of a probe track. The method comprises following steps. Four microwave radio signal channels are disposed between the deep space probe and the earth station by using an uplink carrier frequency and a downlink carrier frequency and comprise a telecontrol instruction channel, a telemetry data channel, a scientific data channel, and a VLBI track measurement beacon channel. Three channel signals including engineering telemetry data, scientific probing data, and VLBI track measurement beacon are combined into a downlink transmission signal. Finally, a transmitter is used to complete a transmitting function of all downlink transmission signals. A track measurement beacon is generated by using a frequency standard signal of a high-stability frequency source and is transmitted to an earth VLBI measuring network. Using a Doppler frequency speed measurement and signal interference angle measurement manner, the earth VLBI measuring network completes the track measurement tack of the deep space probe.

The invention discloses an absolute encoder subdivision acquisition system and a measurement method thereof. The system comprises a parallel light source, an indicating grating, a standard grating, a photoelectric detector module and a signal processing module, wherein the standard grating is provided with an incremental code track and an absolute code track; the indicating grating is provided with a grating ruled orbit corresponding to the incremental code track and an opening part corresponding to the absolute code track; parallel light beams emitted by the parallel light source reach the photoelectric detector module under common effects between the indicating grating and the standard grating; the photoelectric detector module acquires reached light signals, converts the light signals into measurement electric signals and sends the measurement electric signals to the signal processing module; and the signal processing module processes the measurement electric signals, acquires an absolute position value and an incremental position value, checks the absolute position value and the incremental position value and then outputs a position measurement value. The resolution of the absolute encoder can be improved, the redundancy and the reliability of the system are improved, the development difficulty is small, the development cost is low, and the system and the method of the invention can be widely applied to a grating encoder industry.

The invention relates to an electromechanical coupling transmission device of a crawler. The device comprises an engine, a power coupling and gear shifting mechanism, two motors, a power control unit and an energy storage system, wherein the two motors are connected with sun gears of two planet rows of the power coupling and gear shifting mechanism respectively, a gear ring of the two planet rowsof the power coupling and gear shifting mechanism is shared, a clutch is arranged between the two sun gears and the shared gear ring, and the shared gear ring is provided with a brake and output through a planet carrier. The transmission device removes a steering gear set and a zero shaft of double-flow transmission of the crawler, and has flexible allocation, capability of making full use of space and compact structure. Because of the power coupling and gear shifting mechanism, the requirement for the motors is reduced, and the research and manufacture risks of the motors are reduced.

The invention discloses a duel-clutch stepless speed change series parallel hybrid power system in the technical field of automobiles, which comprises an engine, a first clutch, a first motor, a second clutch, a second motor, a speed reduction differential gear, a driving axle, a wheel, an energy storing device, a motor control device, an attachment drive transmission gear and a starting motor, wherein a crank shaft output end of the engine is connected with a rotor of the first motor through the first clutch; the rotor of the first motor is also connected with a rotor of the second motor through the second clutch; the rotor of the second motor is connected with the wheel through the speed reduction differential gear and the driving axle; the energy storing device is electrically connected with the motor control device; the attachment drive transmission gear is connected to the rotor of the first motor to provide hybrid drive for attachments for air-conditioning, braking, steering and the like; and the starting motor is connected with the crank shaft output end of the engine through an input end driving disc of the first clutch. The duel-clutch stepless speed change series parallel hybrid power system has the characteristics of entire car stepless speed change series parallel drive, attachment system hybrid drive, low system cost, low development cost, low maintenance cost and the like.

The invention discloses a brake-by-wire and steer-by-wire hardware-in-the-loop test bench for a vehicle. The test bench integrates a brake-by-wire system and a steer-by-wire system into a whole, and is divided into a software part, a real-time platform, a signal processing part and a hardware part, wherein the real-time platform consists of a host and target machines 1 and 2; the host and the target machines 1 and 2 are connected by a wireless network communication system; the signal processing part consists of first and second data acquisition cards with the model of PCL-818HD, third and fourth data acquisition cards with the model of PCL-727, a fifth data acquisition card with the model of PCI-6601 and a V / F conversion module; and the hardware part comprises a rotary angle sensor (12), a torque transducer (13), an opposite rotary motor (16), a steering resistance sensor (21), a steering actuating motor (18), an EMB actuator controller, and EMB actuator, a clamping force sensor, a revolution transmitter and a current sensor.

The invention relates to a high performance DMA on an embedded type processor chip. The high performance DMA comprises a data buffer used for caching the data read from an on-chip memory, the data sent to a bus interface unit, the data received from the bus interface unit, and the data written into the on-chip memory; a data big-endian and little-endian convertor; a DMA controller used for initializing a state register, a control register, an initial address register and a data size register; a DMA transmission address generating logic module used for automatically calculating the transmission address of the next data on an on-chip external memory and generating chip selection and read and write signals of the on-chip memory according to the on-chip address, and simultaneously updating a data size counter till the counter changes to zero; and a bus transmission transmitter and receiver. The high performance DMA has the advantages that the development difficulty is low, the cost of the hardware is low, the transplantation is convenient, the expansibility is flexible, the data transmission speed is high, and the performance of the processor is greatly enhanced.

The invention discloses a driving method and driving circuit of a display panel. The driving method of the display panel comprises the following steps: driving scanning lines of the display panel row by row; within the time of displaying a frame of an image, the driving time of at least one scanning line being greater than the driving time of a first scanning line; and within a period of one frame, the total driving time of all the scanning lines not exceeding a displaying time of a single frame. According to the invention, the problem of uneven brightness of the driving panel is improved, the product uniformity is improved, and the taste is improved.

The invention relates to a data message forwarding method and a data message forwarding system in a software defined network (SDN). The method comprises the steps that a subordinate controller receives header information; if not finding a target virtual machine in local, the subordinate controller inquires the information of a first associated port of a source virtual machine connected with a first virtual switch and generates first information; the subordinate controller sends the first information to a superior controller, so that the superior controller can acquire the information of a first port of a first domain virtual switch corresponding to the first associated port and the information of a second port of the target virtual machine connected with a second domain virtual switch according to the first information, acquires information of a first uplink interface and a second uplink interface for communication between the first domain virtual switch and the second domain virtual switch, and generates first flow table information and second flow table information, wherein the first flow table information is used for indicating the data message to be received through the first port and then to be sent out through the first uplink interface, and the second flow table information is used for indicating the data message to be received through the second uplink interface and then to be sent out through the second port. Through adoption of the method, applications deployed on all layers of controllers are guaranteed to be the same.

The invention discloses a mobile agent-based Internet of things middleware development method, which is used for remarkably improving the application capability of Internet of things middleware and reducing the development cost of Internet of things middleware application for diversified quality of service (QoS) needs of the Internet of things and dynamic network states. To realize a mobile agent-based Internet of things application program, the method is required to be characterized in that: the functions of the whole application program are required to be realized by a mobile agent, and the functions of the mobile agent can be dynamically changed on a network, and can be dynamically inserted into or deleted from hardware equipment to change own functions of the hardware equipment so as to achieve the aim of reprogramming of the network; and the agents can cooperate and communicate with one another. In the method, powerful and flexible Internet of things middleware is constructed to maximally shield the low-level details of the network and completely develop the technical advantages in the aspects of multi-type data sensing, short-distance wireless communication, self-networking, multivariate data cooperative processing and the like.

The method for implementing proxy network administration based on SNMP protocol in distributed network communication equipment system is characterized by that in the distributed network communication system a proxy network administration server is set, and on said proxy network administration server a public network IP address and a private network IP address are distributed simultaneously, the private network IP address is set on the administrated equipment, the network administration station can utilize public network IP address and proxy network administration server to implement route, the between of proxy network administration server, and administrated equipment can utilize private network IP address to implement route, the proxy network administration server can be used for process and repeat the SNMP message to implement the communication between network administration station and administrated equipment. Said invention provides an economic and effective method for implementing network administration of network element in the distributed network communication system.

The invention relates to an automatic centralized enterprise railway control method. Plan obtainment, plan adjustment and plan decomposition are sequentially carried out on a train reception and departure operation plan and a dispatching plan, moreover, access routes are searched and screened, so that an accessible access route set is obtained, access routes are then dispatched and sequentially executed according to the planned access routes and task priorities, and thereby the automatic centralized control of enterprise railway operation is realized. An automatic centralized enterprise railway control system disclosed by the invention is provided with a dispatching center subsystem, a railway station subsystem and an interlocking subsystem, wherein the dispatching center subsystem comprises a transportation production planning workstation and a dispatching command machine, the railway station subsystem comprises a railway station autonomous machine, the dispatching command machine obtains a train plan and a dispatching plan according to a day shift plan made by the transportation production planning workstation, adjusts stage plans, and issues a task set to the railway station autonomous machine, and the railway station autonomous machine receives and decomposes the task set, dispatches access routes, and then drives the interlocking subsystem to execute the access routes.

The invention relates to the technical field of network protocol encapsulation, and specifically relates to an Internet-of-things terminal platform data encapsulation method. The method is characterized by comprising the steps of defining a data encapsulation protocol on an application layer of an Internet-of-things terminal and a service platform, in order to provide a universal data encapsulation interface for communication between the Internet-of-things terminal and the service platform; after a data receiving module receives data acquired by a corresponding sensor, sending the data from the Internet-of-things terminal to the service platform, coding and encapsulating the acquired data according to the format of the data encapsulation protocol to form a data packet, then transmitting the data packet to the service platform, receiving, by the service platform, the corresponding data packet, and decoding the data packet. Compared with the prior art, the method has the advantages that a universal data encapsulation interface is provided for communication between the Internet-of-things terminal equipment and the service platform, and the method can be used for unified encapsulation of data acquired by different sensor equipment in different industries, so that the data processing requirement of the service platform can be reduced.

The invention discloses a power system of a range-extended hybrid electric vehicle. The power system comprises an ISG, an engine, an EMS and an HCU. The ISG works as a starting motor of the engine or works as a generator. The HCU is connected with the EMS through a CAN bus and an independent cable. When the ISG works as the generator, the HCU transmits a target rotation speed signal and a target torque signal of the engine to the EMS through the CAN bus. The HCU further transmits an accelerator position simulation signal to the EMS through the independent cable. The EMS controls the engine to output rotation speed to reach target rotation speed and output torque to reach target torque. It is unnecessary to directly control the ISG by the HCU in the power generation process, so that the control mode of the HCU is simplified, the development difficulty of the range-extended hybrid electric vehicle is lowered, development time is shortened, cost is saved, and reliability is improved.

The invention discloses a matching and accelerating method of a regular expression based on a deterministic finite automaton with memory, including a rule compiler of the regular expression and a pattern matching engine; the rule compiler of the regular expression firstly transforms the regular expression into an analytic tree, and then transforms the analytic tree into a nondeterministic finite automaton with memory and the deterministic finite automaton with memory respectively; the pattern matching engine can accelerate pattern matching by using the deterministic finite automaton with memory generated by the rule compiler. The invention has the advantages that: 1) by directly supporting repeat operators, the compiler does not need to unfold the repeat expression, thus the difficulty of the development of the compiler is greatly reduced and the memory occupation and the compile time of the compiler are decreased as well; 2) for the same reason, the volume of a rules database generated by the compiler can be reduced, so the cost and complexity of the pattern matching engine can be lowered.

The invention relates to a communication platform and method suitable for a private cloud environment. The communication platform at least comprise two computing nodes and a server node, wherein the computing nodes and the server node are connected with each other through a network to form a distributed cluster system; each computing node represents a host in a system; the host comprises a plurality of application processes; a communication agent is mounted on each node; all application processes in the nodes are connected with a local communication agent through a standard API (Application Program Interface) provided by a communication platform, so that point-to-point communication among application processes is realized; and a message server application process is mounted on the server node, so that one-to-many communication among the application processes is realized. The invention has the beneficial effect that: the defects that the conventional private cloud system communication mode is only provided with one synchronous communication mode, a communication object is only limited to a single node and the conventional client / server mode is adopted in a communication domain are overcome.

The invention discloses a method for directly self-defining the field of a database, comprising the following steps of: A1, receiving self-defined data table information input by a user from a WEB page, wherein the data table information contains the name of a data table; A2, receiving added field information from the self-defined data table, wherein the field information contains field name and field type; A3, judging whether to continue adding the self-defined data table and the field information; and A4, confirming to finish creating a self-defined table and a field. The invention also discloses a device for directly self-defining the field of a database. The method and device for directly self-defining the field of the database in the invention are widely used and simple and convenient and has the effects of lowering the development difficulty of operation of the database and greatly reducing development work time and labor cost.

The invention provides an optical communication transmission method and system. The optical communication transmission method includes encoding to-be-sent transmission data by bit to obtain an electric signal formed by combination of a high level and a low level; controlling a designated area of a screen to send out an optical signal of flash time corresponding to the high and low levels of the electric signal; receiving the optical signal, and converting the optical signal into the electric signal composed of the high and low levels; recording duration for converting the optical signal into the electric signal composed of the high and low levels, and decoding the electrical signal to obtain the transmission data. The screen of terminal equipment is utilized for performing optical communication, an optical communication module occupies a small internal space of the terminal equipment, complicated communication protocol stack support is not required during optical communication, and external communication equipment can receive information sent from the terminal equipment only by being provided with an optical receiver, so that the optical signal only needs to be encoded and decoded simply, the structure of the whole system becomes simple, and research and development costs are saved.

The present invention discloses a mobile terminal based real-time 3D fitting method. The method comprises: obtaining a two-dimensional planar image of to-be-fitted clothing through a mobile terminal; rotating and cropping the two-dimensional planar image, and then performing registering and matching; in combination with physical characteristics of a person trying on clothing, identifying feature points of the to-be-fitted clothing; performing feature point identification positioning of different styles of clothing; generating a clothing style deformation coefficient and establishing 3D clothing models; embedding a 3D fitting human body model in the mobile terminal, and adaptively fusing the 3D clothing models of the to-be-fitted clothing to the 3D fitting human body model; according to physical parameters of the 3D fitting human body model, adaptively adjusting a 3D fitting effect of the to-be-fitted clothing; and performing real-time 360-degree touch display on the 3D fitting effect in a screen of the mobile terminal. According to the method disclosed by the present invention, the identification accuracy of a clothing outline can be improved, and the highly realistic 3D fitting effect is displayed in real time on the mobile terminal.

The invention discloses a method for describing a protocol by using an XML and a protocol resolving system built by the same, namely the method for describing the protocol by using the XML and a system which is built based on the method and is used for resolving an industrial Ethernet protocol. The method for describing the protocol by using the XML comprises two aspects, wherein one is the method for describing an Ethernet protocol format by using the XML and the other one is the method for describing a protocol suite relationship by using the XML. The system for resolving the industrial Ethernet protocol comprises two parts, namely a hardware system and a software system, wherein the hardware system comprises a network adapter and a host machine; and the software system comprises five units, namely a protocol load unit, a protocol library unit, a data capture unit, a protocol match unit and a data resolving unit. The method and the system can conveniently realize the modification and expansion of protocol contents, realize the screening, match and resolving of a multi-layer protocol, and have wide practical value and application prospect in the technical field of Ethernet.

The invention relates to an access method of Modbus equipment. The access method comprises the following steps that configuration files comprising data configuration information and protocol configuration information are preset; an intelligent equipment gathering dynamic library reads and analyzes the configuration files, and the data configuration information obtained through analysis of the configuration files is stored in internal variables of the intelligent equipment gathering dynamic library; and when the Modbus equipment is accessed, the data configuration information is extracted from the internal variables of the intelligent equipment gathering dynamic library according to operation commands to communicate with the Modbus equipment. The invention further provides an access system of the Modbus equipment. The access method and the access system of the Modbus equipment can reduce development workload, and reduce complexity of code maintenance.

A position-posture sensing system of movable robot is composed of a photoelectric sensor for detecting the change of position and posture and converting the change to digital signals, an elastic pressing unit for ensuring the proper distance between said photoelectric sensor and ground, and a controlling-processing circuit consisting of a single-chip microprocessor, a communication interface chip, and the firmed programs. Its method is also disclosed.

The invention provides a crowd behavior identification method. The crowd behavior identification method comprises the steps that a movement track contained in a predefined movement mode is divided into a data point set, the data point set serves as a training sample of a Bayes classifier, and training is carried out through the Bayes classifier to obtain a training model; crowd movement information is obtained from a video sequence; traversal is carried out on the crowd movement information through a sliding window to obtain a movement track, the movement track is expressed through discrete track points, and the track points are clustered to obtain a detection movement mode; the detection movement mode is divided into a track point set, and the track point set serves as a test set to be input into the training model; a result of matching between the test set and the predefined movement mode is fed back by the training model, if matching is successful, crowd behaviors are determined as normal behaviors, and if matching fails, the crowd behaviors are determined as abnormal behaviors.

The invention discloses a deep learning-based diabetic retina image classification method and system in the technical field of artificial intelligence. The method comprises steps: a fundus image is acquired; the same fundus image is imported to a microvascular tumor-like lesion recognition model, a hemorrhagic lesion recognition model and an exudative lesion recognition model for recognition; andaccording to recognition results, lesion feature information is extracted, a trained SVM classifier is then adopted to classify the extracted lesion feature information, and a classification result isacquired, wherein the microvascular tumor-like lesion recognition model is obtained when a microvascular tumor-like lesion candidate area in the fundus image is extracted and is then inputted to a CNN model for training, and the hemorrhagic lesion recognition model and the exudative lesion recognition model are obtained when a hemorrhagic lesion area and an exudative lesion area in the fundus image are marked and are then inputted to an FCN model for training. The requirements on the description ability of the network model are reduced, the model is easy to train, a lesion focus area is positioned and delineated for different lesions, and clinical screening by a doctor is facilitated.