375results about How to "Meet control needs" patented technology

The invention relates the auto sorting faulty goods method on the high-speed automatic production line and unit. The method comprises the following steps: sorting faulty goods system receiving the sorting signal, starting the freedom degree linked conveying device 3, then positioning the mechanical arm connected with 3 on the faulty goods, the mechanical arm keeping the same speed with conveyer belt, gripping the faulty goods, lifting it and releasing it to appointed position. The unit comprises electrical control and mechanical part. The mechanical part comprises 3 and mechanical arm which comprises arm and hand. In the center of the mechanical hand there is camera, and the electrical control is connected with 3 and mechanical arm. The invention possesses high accuracy, low cost, good versatility, and no environmental pollution.

An embedded monocular visual navigation system based on navigation line recognition, the system includes the following processing steps: the first step, video signal acquisition, the single-chip microcomputer carries out video signal acquisition; the second step, distortion correction, the image collected by the camera is processed Vertical and horizontal distortion correction; the third step, path recognition and extraction, separating and extracting the navigation line from the background image; the fourth step, steering control, building a steering model to calculate the relationship between the turning radius of the smart car and the steering gear swing angle , to provide data for the steering control of the smart car; the fifth step, steering gear control, to realize the smart car moving along the navigation line; the sixth step, speed control, using the PID control method to control the running speed of the smart car; the present invention collects and navigates with a camera The line information has good visual foresight, which effectively improves the performance of the navigation system. The invention realizes image dynamic threshold calculation and self-adaptive adjustment in complex environment, and has better stability under complex light.

The invention provides a gait phase distinguishing method based on lower limb joint movement information. The phase distinguishing method based on the lower limb joint movement information includes receiving angle information by angle sensors on the portion of thighs, cruses and foot faces; obtaining a lower limb joint movement parameter through an angle information processing system, particularly including angle information of knee joints and ankle joints, and angle speed information of the knee joints; obtaining gait phase of existing lower limbs by judging angle mark positions and angle speed of the knee joints. The angle information is collected by the three angle sensors which are arranged on the thighs, the cruses and the foot faces, so that phase judgment on the lower limbs is completed. The phase distinguishing method based on the lower limb joint movement information can simply, conveniently, and accurately judge the gait phase of the lower limbs, and improves control rapidity and accuracy of an artificial limn knee joint.

The invention discloses an agitator transporting truck and an agitating drum control device thereof. The agitating drum control device comprises an operation controller, an electronic controller, an oil pump actuator, an accelerograph actuator, and a rotation speed sensor, wherein the electronic controller is electrically connected with the operation controller to control the operation of an agitating drum of the agitator transporting truck according to an operation command of the operation controller; moreover, the electronic controller also controls the agitating drum to rotate at a constant speed during the running of the agitator transporting truck; the oil pump actuator is electrically connected with the electronic controller to control the working position of the agitating drum according to an operation command of the electronic controller; the accelerograph actuator is electrically connected with the electronic controller to control the rotation speed of an engine of the agitator transporting truck according to an operation command of the electronic controller; and the rotation speed sensor is electrically connected with the electronic controller to detect the rotation speed of the agitating drum and feed back a rotation speed pulse signal of the agitating drum to the electronic controller. The agitating drum control device has two operation modes, namely, remote control and close control, and has constant speed control, convenient installation, simple operation and lower cost.

The invention discloses a network experiment system based on a virtualization technology and a construction method. The experiment system comprises a plurality of physical servers or mainframes, and network infrastructures, wherein the physical servers or mainframes are connected through switching devices or routing devices or communication lines; the experiment system performsresource planning for an experiment network presented by a user, and maps the experiment network of the user to a corresponding physical device through network virtualization and mainframe virtualization. The advantage is that the experiment system can realize a highly customized user experiment network, can realize different user experiment networks on limited physical hardware resources, and guarantees that the experiment networks among different users cannot interfere with each other, thus, sharing of physical experiment resources is realized, problems, such as low resource utilization rate, high experiment threshold and difficulties in organization, are solved, and expandability of the system is increased.

The invention discloses a motor driving system for an electric vehicle and an electric vehicle. The motor driving system comprises a three-phase alternating current motor and a controller group for controlling the three-phase alternating current motor. The stator of the three-phase alternating current motor adopts two or more winding units, and the three-phase alternating current motor is a permanent magnet motor. The controller group includes motor driver units electrically connected with each winding unit, and each motor driver unit is used for controlling the operation of the correspondingwinding unit. Wherein, the controller group performs centralized coordinated management control on the running state of each motor driver unit; Each motor driver unit includes an electrically connected battery and a controller, respectively. The invention effectively improves the technical bottleneck of unreliable performance and low cost of the electric vehicle in the medium and high power marketat present, and can effectively promote the development process of the future electric vehicle market to realize higher power and high performance on the premise of medium and low cost.

The invention discloses a police service cloud image recognition vehicle management and control system based on geographic space-time constraint. The system comprises an image data collection and decomposition module, an image retrieval module, a data storage module and a geographic information service module. The system is characterized in that the image data collection and decomposition module is responsible for collecting road images, extracting vehicle characteristics in the images and transmitting vehicle characteristic information in the images to the data storage module, the data storage module is used for storing the road images and image characteristic element data concerning the vehicle characteristic information in the images, the image retrieval module is used for responding to image retrieval requests of requesters, acquiring retrieval results meeting the image retrieval requests in an image retrieval mode mixing the image characteristic element data with geographic space-time constraint according to the image retrieval requests of the requesters and feeding the retrieval results back to the requesters, and the geographic information service module is used for responding to vehicle positioning requests of the requesters, acquiring vehicle space position information through a map server served by a geographic information platform and feeding the vehicle space position information back to the requesters.

The invention relates to a voice control wheel chair with movement modes being adjusted according to physical condition, mental state and environmental condition, which belongs to the field of mechanical-electrical integration, and solves the problems that a common wheel chair cannot meet the demands of patients, and an intelligent wheel chair is too expensive to be served for common consumers. A neck pulse transducer is arranged under a bulge of a pillow part on the back of the wheel chair and is used for detecting a pulse signal; a respiration signal detecting circuit is used for detecting a respiration signal; a measuring distance transducer is used for detecting a relative distance signal; an ear-style hemopiezometer is worn on an ear of a patient to detect a blood pressure signal; a voice command control panel and a microphone are arranged for acquiring a sound voice; all the signals are analyzed by a control and analysis processer; the output end of the control and analysis processer is connected with the input end of an execution and alarm module; the execution and alarm module comprises an execution mechanism and an alarm module; and the execution mechanism is used for controlling a driving motor so as to drive a rear driving wheel and a front driven wheel to rotate according to commands.

The invention relates to the technical field of wheel hub motor vehicle failure control, and discloses a wheel hub motor vehicle failure control method, which comprises the following steps of selecting a driving mode according to a failure state of a wheel hub motor; distributing the longitudinal driving force when entering a two-drive mode; establishing a yawing moment controller according to a second-order sliding mode control method, and calculating the expected yawing moment; setting a distribution weight coefficient in combination with a driver intention parameter and a vehicle attitude parameter; distributing the longitudinal driving force according to the expected yawing moment and the distribution weight coefficient; and performing failure control on the vehicle in combination withthe driving mode and the distribution result of the longitudinal driving force. According to the hub motor vehicle failure control method provided by the invention, the residual dynamic property canbe exerted on the premise of ensuring the safe driving of the vehicle, and the safe driving of the vehicle in a motor failure state is ensured.

The invention relates to a frequency-modulation electronic ballast for a dimmable fluorescent lamp, comprising an EMC filter rectifier circuit, an input voltage sampling circuit, a PFC booster circuit, a half-bridge driver circuit, a DC-AC half-bridge inverter circuit, an ignition circuit, a microprocessor and a lamp current / voltage sampling circuit; the EMC filter rectifier circuit is connected with the PFC booster circuit; the PFC booster circuit is connected with the half-bridge driver circuit and the microprocessor; the half-bridge driver circuit is connected with the DC-AC half-bridge inverter circuit; the DC-AC half-bridge inverter circuit is connected with the ignition circuit; and the lamp current / voltage sampling circuit is connected with the microprocessor. The invention has the following advantages: the electronic ballast dose not use special integrated control circuit but universal microcontroller so as to perform the functions thereof through pulse frequency modulation dimming method, thus the whole structure is simple, and various dimming interfaces can be expanded conveniently to perform digital dimming.

The invention belongs to the technical field of automobile brakes, in particular to a method for estimating the brake pressure of an automobile and the peak value of the road adhesion coefficient, more particularly, the invention intends to provide a method for estimating the brake pressure of an automobile and the peak value of the road adhesion coefficient on the basis of the conditions of the wheel speed and pressure control under the condition that no component for measuring the brake pressure is introduced. The method comprises the following steps: grading the peak value of the road adhesion coefficient and the brake pressure; and estimating the peak value of the road adhesion coefficient and the initial brake pressure of a wheel cylinder. By estimating the peak value of the road adhesion coefficient and the initial brake pressure of the wheel cylinder, the invention is capable of estimating the brake pressure of the automobile and the peak value of the road adhesion coefficient under the condition that no component for measuring the brake pressure is introduced, thus improving the breaking efficiency of an ABS (anti-lock braking system) and providing strong support for the fail-safe function. According to the tests, the maximum relative error between the estimated value and the measured value of the pressure of the wheel cylinder of the brake is lower than 10%, thus meeting the requirements for ABS control, reducing the cost and facilitating the popularization of the ABS in the field of braking and being beneficial to the improvement on the traffic safety.

The invention discloses a train operation monitoring device based on a double 2-vote-2 safety computer structure. The train operation monitoring device comprises a host unit. The host unit comprises a primary unit and a secondary unit. The primary unit comprises a primary input plug-in group, a primary host plug-in and a primary output plug-in. The primary input plug-in group comprises at least one primary safety input plug-in based on a 2-out-of-2 structure. The secondary unit comprises a secondary input plug-in group, a secondary host plug-in and a secondary output plug-in. The secondary input plug-in group comprises at least one secondary safety input plug-in based on the 2-out-of-2 structure.

The invention discloses a device for drive control of a servo direct current motor. The device comprises a digital signal processing (DSP) module, a full-bridge driving module, a current sensor module, a power module, a communication module and an optical coding signal processing circuit, wherein the power module provides electric energy for the DSP module, the current sensor module and the full-bridge driving module; the DSP module sends out pulse width modulation signals through pulse width modulation technology, and the signals are amplified to nominal voltage of the direct current motor through the full-bridge driving module to control the direct current motor; the current sensor module is in serial connection between the full-bridge driving module and the direct current motor, and is used for reading the current value of the direct current motor and transmitting the current value to the DSP module; and the communication module is connected with the DSP module and is used for communication of the direct current motor with other equipment. The servo direct current motor drive control device is good in control performance, and high in precision, and enables operation of the direct current motor to have high stability and robustness.

The invention discloses a multi-component composite energy storage system grid combination control method based on power prediction, comprising steps of calculating difference value PV-L of the photovoltaic output power prediction value PV and the load power prediction value PL according to the photovoltaic output power prediction value PV and the load power prediction value PL and, utilizing a wavelet packet composition method to map PV-L to the subspaces of m wavelet packets to obtain signals with different frequencies, using the frequency signals which are close to the responding frequency of a storage battery in the frequency signals as low frequency signals P low which are complimented by the storage battery and using the rest of the frequency signals and the frequency signals which are not absorbed by the battery as high frequency signals P high which are complimented by a super capacitor, using an external loop control method and an inner loop current control method to output the real power of the storage battery and the super capacitor and control the charging and discharging power of the storage battery and the super capacitor by utilizing the state of charges of the super capacitor and the current, the state of charge and maximum charge-discharge power of the storage battery according to the real condition. The advantages of the invention are safe, stable, and economic in operation. Furthermore, the times of charging and discharging of the storage battery are reduced.

The invention relates to a network chip based smart home multi-cloud control method and system. A network chip at least comprises a memory; and a smart home WIFI module is developed based on the network chip. The network chip based smart home multi-cloud control method comprises the steps of sending distribution network data to the smart home WIFI module by an application module; analyzing the distribution network data based on an application module distribution network mode and selecting a corresponding application module based on the correctly analyzed distribution network mode by the smart home WIFI module; selecting a corresponding cloud control server code based on the corresponding application module; and guiding the corresponding cloud control server code to the memory to realize communication between the corresponding application module and the corresponding cloud control server. According to the network chip based smart home multi-cloud control method, communication codes of multiple cloud control servers are unified to a firmware, and convenience is brought to departments such as a design department, a management department, a production department and a testing department.

The invention relates to a method and system controlling environment temperature according to a virtual scene and a temperature data terminal. The method includes steps of obtaining temperature To sensed by a controlled object in the virtual scene; calculating the cold and hot index Tv of the controlled object in the virtual scene according to the temperature To; calculating the target environment temperature Tr of a real environment where an operator is according to the cold and hot index Tv; generating corresponding control commands according to the target environment temperature Tr; controlling household appliances to operate according to the control commands. According to the invention, the temperature sensed by the virtual object in the virtual scene can be taken as a basis for temperature control of the household appliances, so that the household appliances create a game environment in the real environment where the user is and the user can have a feeling of being in the virtual scene. No hardware cost increase is needed and game enjoyment can be improved. At the same time, the application field of the household appliances can be expanded and a new profiting way is created for household appliance enterprises.

The invention relates to a method for realizing integration of protection and control, communication and an AGC substation. The method is characterized in that a protection and control module, a communication management module and a newly-added AGC substation module are realized in the same device. The method is mainly applied to the field of new energy power generation like photovoltaic power generation. The method has the advantages that based on the device, besides the protection and control module and the communication module, a total power instruction of a superior AGC system to a sub-array can also be received and is optimized, controlled and resolved to power generation units, the total station AGC operating accuracy and timeliness are improved, the capacity of the superior AGC system is increased, and load bottleneck is calculated; the device is directly installed in a box-type transformer, the problems of multiple devices and high cost in a conventional scheme are avoided, and the additional high cost and installation difficulty caused by arranging local cubicles in the conventional scheme are also avoided; the AGC control efficiency is effectively improved, the total equipment cost is lowered, investment is reduced, secondary wiring is optimized, and the economic operation level of power plants is increased.

The invention relates to a remote detector of grouped data transmission water tube network pump station, wherein it provides one GPRS detecting station which can be increased via need; the GPRS detecting station has simple address selection, simple installment and low cost, to realize online detected grouped data transmission water tube network pump station. The invention comprises water tube network remote detection distributor and area pump station detector, while the first one has tube network remote terminal, tube network wireless GPRS network, and APN special-wire network, and distributor, and the area pump station detector has pump station terminal, pump station detecting center and pump station wireless GPRS network.

The embodiment of the invention relates to the technical field of vehicles, and discloses a custom method and system of vehicle lighting effects, and a vehicle. The custom method comprises the steps:when a lighting effect custom function is triggered, a lighting effect custom instruction aiming at a vehicle lamp is received, and a custom lighting effect scheme is determined according to the lighting effect custom instruction; and according to the custom lighting effect scheme, the target lighting effect is determined in the preset lighting effect control logic, and the vehicle lamp is controlled to output the target lighting effect. By implementing the custom method, users can intelligently control vehicle lighting effect output, thus the vehicle lamp can output the various different lighting effects in a certain fixed scene, and the increasing control demands of the users for the vehicle lamp are met.

The invention provides a strip rolling variable crown roll having the local edge wave control capability. The rolling roll shape is formed by an edge wave control section and a continuous variable crown section. The continuous variable crown section is used for completing secondary crown control in a strip rolling process. The edge wave control section is used for completing the control of local edge waves. The edge wave control effect depends on the depth of the edge wave control section in a strip and the formed maximum effective roller seam difference of strip edges. The roll shape can be flexibly designed according to the needs of the secondary crown control and the control of the local edge waves through the corresponding relationship of coefficients of the roll shape. Furthermore, the effective control of the local edge waves of strips in different widths is achieved by combining the position characteristics of a channeling roll of the variable crown roll shape in different widths of a strip rolling mill.

The embodiment of the invention provides a data processing method and device, a client stores a first private key component, a server stores a second private key component, and the method comprises the following steps: responding to a transaction data processing request, initiating an identity verification request, and carrying out bidirectional identity verification with the server; and after theverification is passed, calling a first MPC node preset at the client side to take the first private key component as input, and a second MPC node preset at the server to take the second private keycomponent as input, carrying out preset function operation according to a preset rule to obtain a transaction signature, and carrying out transaction data processing. According to the scheme, the transaction private key is firstly split, and then the first private key component and the second private key component which are split are separately stored; in the use process, MPC nodes on the two sides are called to jointly participate in operation through the private key components to generate a transaction signature, and therefore the technical problem that the secret key is not safe to use is solved, and the control power of a user on the complete transaction private key is met.

The invention provides a control method and a control system based on a wireless switch, a gateway, a wall switch and a cloud. When the control method of the wireless switch is applied to the cloud, the control method comprises the following steps of: receiving and storing at least one triggering rule fed back by a first terminal, wherein the triggering rule defines a triggering relationship between at least one triggering condition and at least one triggering result, each triggering condition is a control action of a wireless switch, and the triggering result is an executable function of controlled equipment; receiving a first control instruction sent by the gateway, and determining a matched target triggering rule in all stored triggering rules according to current event information; andcontrolling the triggering result defined by the target triggering rule to be executed.

The invention relates to a self-powered intelligent sensor for a fluid pipeline, which is technically characterized by comprising a computer mainboard, a network connector, a sensor, a power supply unit, an electric generator, a storage battery and a turbine, wherein the computer mainboard is respectively connected with the sensor and the network connector; the electric generator is connected with the turbine arranged in the fluid pipeline and is driven to generate power by the turbine; after carrying out voltage stabilization treatment on the electric energy provided by the electric generator, the power supply unit provides power for the computer mainboard, the network connector and the sensor; the storage battery is connected with the power supply unit so as to provide power for the computer mainboard, the network connector and the sensor; or the computer mainboard, the network connector and the sensor are charged by the electric energy provided by the electric generator under the control of the power supply unit. The self-powered intelligent sensor is reasonable in design, solves the problem that the sensor of the fluid pipeline also can be used under the condition without electric power, and has the characteristics of being powerful in functions, wide in usage, convenient to use, free from maintenance and the like, thus playing an important role in the development of Internet of things.

The invention provides a terminal which comprises a first processing unit for processing private data, a second processing unit for processing non-private data, a first storage unit and a second storage unit, wherein the first storage unit is used for storing the private data processed by the first processing unit, a first desktop starter or a first operation system is further stored in the first storage unit, the second storage unit is used for storing the non-private data processed by the second processing unit, a second desktop starter or a second operation system is further stored in the second storage unit, and the first processing unit and the second processing unit achieve user interface interaction through the different desktop starters or the different operation systems. The invention further provides a corresponding display control method of a user interface. According to the technical scheme, the private data and the non-private data in the terminal can be isolated physically, and the independent user interface is used for meeting the control requirements in the processing process of the data of different types.

The invention discloses an electric control system and a method for a cooling fan of an automobile engine. The electric control system comprises an acquisition unit, a control unit and an execution unit, wherein the acquisition unit is used for acquiring various engine parameters in real time; the engine parameters comprise inlet and outlet temperatures of cooling water; the control unit is used for calculating the target rotating speed of a fan according to various parameters of the engine and obtaining a PWM (Pulse-Width Modulation) pulse-width signal for driving the execution unit; and the execution unit is used for driving a fan motor according to the PWM pulse-width signal to enable the fan to reach the target rotating speed. According to the electric control system and method disclosed by the invention, intelligent control over the rotating speed of the cooling fan is realized, so that the situation that a cooling system of the engine works under optimal work conditions is realized and the dynamic property of the engine is exerted with minimum energy consumption; the economy is realized; and the emission requirement is met.

The invention provides a road traffic signal countdown displaying device which is arranged in a junction and connected with traffic lights which are controlled by traffic signals; the road traffic signal countdown displaying device comprises a light signal input modules for outputting a red or green light high-voltage level signal, an input interface module for converting the high-voltage level signal into a low-voltage level signal, a microprocessor module for determining the type of the low-voltage level signal and detecting the signals of the type in two continuous periods and outputting a countdown signal by using one period of the low-voltage level signal of the type as the countdown period since the values are in a line under the detection, an output interface module for outputting seven-segment code digital signals, and a countdown displaying module for displaying the countdown to the seven-segment code digital signals. With the adoption of the road traffic signal countdown displaying device, the functions of urban road traffic signal self-adaptive control system can be realized; and the road traffic signal countdown displaying device can display the counting display of the traffic signals along with the continuous change of traffic volume and saturation level.

The invention discloses an online control method for the finish rolling temperature of precision rolling strip steel and belongs to the field of temperature control of rolling processes. The second flow regulating variable or the cooling water flow regulating variable between machine frames is subjected to online optimization through a quadratic programming optimization algorithm, and the deviation between a calculated value and a target value of the finish rolling temperature is reduced. The method comprises the steps that a plurality of control points are generated on the strip steel in the length direction according to a control period; the deviation between the calculated value and the measured value of the finish rolling temperature of all the control points is calculated according to information of all the control points and the measured value of a pyrometer at a precision rolling outlet; a temperature calculating model is corrected according to the deviation, and the calculation precision is improved, at the same time, the deviation between the calculated value and the target value of the finish rolling temperature of all the control points is calculated; and according to the deviation value between the temperature calculated value and the target value, the second flow regulating variable or the cooling water flow regulating variable between the machine frames of all the control points is subjected to online optimization through the quadratic programming optimization algorithm, and the finish rolling temperatures of all the control points are made to meet the control requirements. By means of the method, the control precision of the finish rolling temperature of the strip steel is improved, the uniformity of the total-length temperature of the strip steel is guaranteed, and the finished product quality requirements are met.