819results about How to "Run accurately" patented technology

Embodiments of the present disclosure include a user detection system for exercise equipment, such as a treadmill. In an embodiment, a sensor monitors displacement between a deck supporting a moveable treadmill belt and aspects of a treadmill frame. As users interact with the treadmill, a processor uses a sensor signal indicative of the displacement to determine whether a user has mounted the treadmill belt.

The output level (vibration level) of vibration of a portion below the spring of a vehicle detected by a vibration sensor mounted to the portion below the spring of the vehicle is frequency converted by frequency analyzing means 14F to obtain the frequency spectrum of the vibration level and an operation is carried out on at least two vibration levels at different frequency bands of the obtained frequency spectrum by vibration level computing means 14R, and this computed value is compared with a master curve showing the frequency spectrum of vibration level stored in vibration level storage means 16S to estimate the condition of a road surface so as to estimate the running state of the vehicle. Further, the running state of each tire including the air pressure of the tire is detected from the vibration level of the portion below the spring of the vehicle to estimate the running state of the vehicle, thereby constructing a multi-function sensing system for estimating the condition of a road surface or the running state of the tire with one sensor.

A vehicle control device is installed in a hybrid vehicle which can run by a driving force of at least one of an engine and a motor, and charges a battery by driving the engine when an amount of electric power stored in a battery which supplies the electric power to a motor becomes equal to or smaller than a predetermined lower limit. The vehicle control device preheats the engine, a catalyst and the like when an amount of the electric power stored in the battery becomes equal to a value which is set as an amount of stored electric power that is larger than the lower limit. Thus, since the engine and the like have already been warmed when the engine is started, deterioration of emission can be prevented, and the vehicle can run properly.

A navigation system in a vehicle stores position history information including position information related to a detection position detected by a position detector and position information related to a map matching position. The map matching position is obtained by matching the detection position with a point of a road in road map data. When the vehicle runs on a not-stored road that is not stored in the road map data, the navigation system determines a trail of running of the vehicle from departure from a stored road that is stored in the road map data to comeback into a stored road that is stored in the road map data, based on the stored position history information.

The invention provides a mobile robot path planning method in a complex environment. The method is characterized in that 1. information of environment in which a robot is positioned is acquired, and obstacles in the environmental space are indicated by using rectangular enclosing boxes after processing and displayed on a human-computer interaction module; 2. the initial position of the robot is confirmed and recorded as an initial point; a target position expected to be reached by the robot is confirmed and recorded as a target point; 3. the initial point, the target point and the vertexes of all the obstacle enclosing boxes meeting the condition are connected by using line segments, wherein the requirement indicates that the connecting line of any two points does not penetrate through the enclosing boxes, based on which a visual graph is constructed; 4. the optimal path is planned in the visual graph via an artificial immune algorithm, and key nodes in the optimal path are stored; and 5. The entity robot is controlled to start from the initial point, pass the key nodes in the optimal path one by one and finally reach the target point. Algorithm efficiency and convergence rate can be effectively enhanced under the premise of guaranteeing solution of the optimal path.

The invention relates to a natural cold source cooling water chiller which comprises an outdoor unit and an indoor unit, wherein the outdoor unit mainly consists of a refrigeration system composed of a totally-enclosed scroll compressor, an evaporator, an evaporative condenser and a natural cold source collection device, and a water channel circulating system with a three-way valve so as to realize the mechanical refrigeration of the evaporative condenser and the evaporative cooling and the air cooling of the natural cold source collection device. The water chiller is characterized in that the evaporative condenser and the high-efficiency natural cold source collection device are arranged simultaneously above a cooling circulating water pool, and an axial-flow fan is installed on upper space. When the outdoor wet-bulb temperature is higher than 6 DEG C to 8 DEG C, the evaporative condenser is mainly used to realize refrigeration, when the outdoor wet-bulb temperature is lower than 6 DEG C to 8 DEG C and higher than 0 DEG C and 2 DEG C, the natural cold source collection device which is in the form of cooling tower spraying is mainly used to realize the evaporative cooling, and when the outdoor wet-bulb temperature is lower than 0 DEG Cto 2 DEG C, the natural cold source collection device which is in the form of air cooling is mainly used to realize cooling.

The invention relates to a Diameter-AAA server supporting RADIUS protocol and the working method thereof. The server uses unified user information, and simultaneously provides AAA application service for two different protocol terminals of Diameter and RADIUS. The server comprises a TCP / SCTP interactive module, an opposite terminal management module, a conversation management module and an AAA application service module which are connected in sequence. The server is characterized in that three software function modules used for supporting the RADIUS protocol terminal, namely a UDP interactive module, a conversion module and an RADIUS opposite terminal management module, are added on the server as well. The invention also proposes the method for processing the mutual transformation of two protocol data packages of the Diameter and the RADIUS, in order to simultaneously provide the AAA service for the two protocol terminals of the Diameter and the RADIUS in a newly built Diameter network system, and to create condition and foundation for being gradually transited into a full Diameter AAA system afterwards.

The invention discloses a data importing processing method and a data processing device. The data importing processing method includes acquiring source data to be imported, a source data model and a target data model; establishing a mapping relation between the source data model and the target data model and converting the acquired source data according to the established mapping relation; acquiring preset business rules of the target data model and filtering the converted source data; and computing global similarity of the filtered source data and target data, deleting the source data with global similarity values higher than a preset similarity threshold value and importing the source data which meet similarity conditions into a data table of a target database after similarity processing is performed on the source data. The data importing processing method and the data processing device have the advantages that by the data importing processing method and the data processing device, the consistency of stored data can be improved, the storage efficiency is improved, and data redundancy is reduced.

The invention relates to a synchronous control system with two hydraulic cylinders or a plurality of the hydraulic cylinders, which is combined with a hydraulic system and mainly comprises an eddy plate, an electro-hydraulic proportional speed control valve, hydraulic cylinder stroke detectors, and a PLC controller. The eddy plate with the electro-hydraulic proportional speed control valve is coupled in an oil feed path of the hydraulic system, and oil flows through the eddy plate with the electro-hydraulic proportional speed control valve and enters into hydraulic cylinders of the hydraulic system; and each hydraulic cylinder is provided with one hydraulic cylinder stroke detector which is in charge of inputting a stroke detection signal to the PLC controller, and the PLC controller inputs a proportional speed control signal to the electro-hydraulic proportional speed control valve according to the received stroke detection signal so as to control the proportional speed control valve to adjust the oil flow rate thereof. The control system can achieve the synchronous and precise running of the two hydraulic cylinders or the plurality of the hydraulic cylinders so as to improve the reliability and the safety of the running of the hydraulic system, and has the advantages of high synchronous control precision and fast response speed.

The invention discloses an intelligent warehousing device scheduling method and system, a storage medium and an electronic device. The method comprises the following steps of configuring the commodityshelves with the corresponding types and quantities according to a warehouse-out order; calculating the similarity between different warehouse-out orders; according to the similarity, carrying out wave number summarization on the commodity shelf and the commodities on the commodity shelf; and configuring an optimal picking path according to the total result, and scheduling a picking device to execute the warehouse-out task. According to the method, the ex-warehouse orders from different e-commerce platforms are preprocessed, and the optimal picking path is selected for the picking device, sothat the picking task can be executed accurately and quickly. The warehousing intelligent device can be accurately and rapidly dispatched to effectively operate in a warehouse, so that the overall planning and dispatching of the machine device are achieved, the efficient work of checking, ex-warehouse and replenishment of goods to people is completed, the whole-course system centralized control can be conveniently achieved, the accuracy of work is guaranteed, the warehousing operation cost is reduced, and the logistics storage operation efficiency is improved.

A method for correcting track errors generated during iterative learning of an industrial robot comprises the following steps that firstly, a specific controlled object is determined, an electric current loop or a speed closed loop is adopted as the controlled object, and optimizing and setting of control parameters are carried out on a whole control loop; and secondly, according to the formula (please see the specification), the learning gain phi is changed, the position of the starting point of a N(z) Nyquist curve and the amplitude of the curve are adjusted, introduced offline lead compensation factors enable the N(z) Nyquist curve to achieve translation, more curves fall into a unit circle, gamma=1,2,3...n, and in the formula, q is the feedback gain, and gamma is the number of samplingperiods. According to the method, the design of a robot iterative learning controller is provided according to the characteristic that the industrial robot operates on the same track multiple times,the robot has the self correction capacity, the experience in the previous operating track process is gained to guide operating of subsequent tracks, the more the robot operates, the higher the accuracy is, following errors are reduced greatly, and the accuracy of track operating is improved.

The invention discloses a gas water heater, and a safety control system and a method thereof. The system comprises an exhaust fan, a rotary speed detection unit, a power acquisition unit, a rotary speed difference value acquisition unit and an exhaust control unit. The rotary speed detection unit is used for detecting the rotary speed of the exhaust fan; the power acquisition unit is used for acquiring an output power set value of the exhaust fan; the rotary speed difference value acquisition unit is used for acquiring a rotary speed actual value and a rotary speed reference value of the exhaust fan according to the output power set value, and calculating a difference value between the rotary speed actual value and the rotary speed reference value of the exhaust fan; and the exhaust control unit is connected with the exhaust fan, the rotary speed detection unit, the rotary speed difference value acquisition unit and the power acquisition unit, and is used for correcting a preset outlet air pressure curve of the exhaust fan according to the difference value, judging the air pressure situation of an air outlet of the exhaust fan according to the rotary speed, the corrected outlet air pressure curve and the output power set value of the exhaust fan, and adjusting the output power set value of the exhaust fan according to the air pressure situation of the air outlet of the exhaust fan. The system can ensure the gas water heater to have a favorable combustion condition and operate safely and reliably, and is high in control accuracy.

The invention belongs to underwater robots, and in particular discloses a radiation resistant underwater monitoring robot. A remote controller transmits a control command to a master controller through a CAN bus; the control command is transmitted to a monitoring video recorder, a robot body, a tilt holder, underwater lighting, an underwater camera and a manipulator respectively by the master controller; the monitoring video recorder is a post-processing part for the video data acquisition of the underwater camera, and displays and records video information of the underwater camera; and the sensor acquires and transmits the information on the posture and the pressure of the robot body to the master controller. The robot can run 10 hours continuously under a radiation environment with the environmental dose of 10<5> rad, has a small volume, a compact structure and stable operations, combines automatic control and manual control, and meets the control with different motion requirements.

The present application discloses a virtual resource arrangement method and apparatus, and belongs to the technical field of computers. The method comprises: acquiring an arrangement template, wherein the arrangement template comprises configuration parameters of relationship indication information of at least a first to-be-arranged virtual resource and a second to-be-arranged virtual resource between which a dependence relation exists, and the first to-be-arranged virtual resource and the second to-be-arranged virtual resource both can be a virtual machine or a container, and the relation indication information of the first to-be-arranged virtual resource and the relation indication information of the second to-be-arranged virtual resource can jointly indicate a specified parameter for the second to-be-arranged virtual resource to depend on the first to-be-arranged virtual resource; creating a corresponding first virtual resource and second virtual resource based on the configuration parameters of the first to-be-arranged virtual resource and the second to-be-arranged virtual resource; and transmitting a parameter value of a specified parameter in the first virtual resource into the second virtual resource. The method disclosed by the present application can improve efficiency of application node deployment and simplify the process of application node deployment.

The present invention relates to a process and a device for modifying code sequences written into a first memory (2) of a medium. A central processing unit (1) executes code sequences and the first memory contains a main program comprising at least one code sequence executable by the central processing unit (1). The first memory also comprises a second, programmable nonvolatile memory (3), and a third working memory (4). A branch table TAB_DER contained in the second programmable memory contains at least one field containing reference data for a new code sequence stored in one of the memories. Branching instructions allow a deferred branch from the executed code sequence to the new code sequence written into one of the three memories. Instructions in the new code sequence allow the return to a point of the code sequence executed before the branch.

The invention relates to the field of electrical power system dynamic reactive power control, in particular to a load characteristic considered power grid dynamic reactive power optimization system and method. One port of a load state collector is connected to a load dynamic reactive power regulation controller, collected and processed power grid load characteristics are transmitted to the load dynamic reactive power controller, the load dynamic reactive power controller is connected with a load dynamic reactive power executor, and the load dynamic reactive power executor is used for guiding an electrical power system to operate according to optimizing results of the dynamic reactive power controller. According to the load characteristic considered power grid dynamic reactive power optimization system and method, data required by reactive power optimizing are directly read from an actual power grid, system hardware investments are effectively saved, characteristic variables of factors of load characteristics, load voltage fluctuation and the like are extracted, real-time changing conditions of the power grid are exactly reflected, and the computing complexity is effectively reduced. Powerful scientific theory supports are provided for the field of dynamic reactive power compensation in the future, dynamic reactive power compensation of the power grid is achieved with the minimum reactive power compensation quantity, and thereby enormous economic benefits are achieved.

The invention discloses a starting control system and control method of an automobile engine. The system comprises a micro computer module, an engine starting module, an engine closing module, an engine state detecting module, an engine temperature detecting module, a starting circuit fault detecting module, a control system detecting module, a control system maintaining module, an alarm module and a display module; the micro computer module controls the engine starting module and the engine closing module, controls the engine state detecting module to detect the state of the engine, controls the starting circuit fault detecting module and the engine temperature detecting module, controls the control system detecting module and the control system maintaining module and controls the alarm module and the display module. Whether an engine circuit fails or not can be effectively detected, an alarm can be given out in time, and meanwhile, various detected data are displayed.

The invention discloses a method for measuring stator resistance of a motor. The method comprises the following steps that the angle of a current vector function is obtained; the motor is controlled to operate in a current closed-loop mode according to a first d-shaft current applied to a shaft d of the motor to obtain a first steady voltage command of the motor; the motor is controlled to operate in a current closed-loop mode according to a second d-shaft current applied to the shaft d to obtain a second steady voltage command of the motor; the stator resistance of the motor is calculated according to the first d-shaft current, the second d-shaft current, the first steady voltage command and the second steady voltage command. The method can accurately measure the stator resistance of the motor, measurement precision of the stator resistance is greatly improved, and therefore temperature detection precision of the motor can be improved. The invention further discloses a temperature detection method of the motor, a device for measuring the stator resistance of the motor, a temperature detection device of the motor and a motor control system with the device for measuring the stator resistance of the motor or the temperature detection device.

The invention provides an electric heating load prediction method. The electric heating load prediction method comprises steps that main influence factors of an electric heating load are analyzed; theBP neural network calculation method is constructed; a genetic algorithm is constructed to optimize the BP neural network calculation method; integral data is selected as a training sample and a prediction sample, the BP neural network calculation method and the genetic algorithm are utilized to optimize the BP neural network calculation method to respectively predict an electric heating load, and effectiveness and scientificity of the genetic algorithm for optimizing the BP neural network calculation method are verified. The method is advantaged in that the electric heating load can be precisely predicted, a type of heating equipment of a heating system and a new load size can be accurately determined, heating parameters, idle capacity and a system operating status, etc., can be accurately determined, so operation, maintenance and overhaul of the heating equipment are made to be more scientific and reasonable.

The invention discloses an intelligent wireless sensing network node based on piezoelectric energy recovery, comprising an energy recovery unit, a resistance strain sensor signal conditioning unit and a wireless transceiving and data processing unit. A self-powered wireless sensing system is realized by utilizing piezoelectric energy recovery without external energy, battery replacing or maintenance, the system has the power consumption as low as 4.9MW, and the real-time monitoring performance is ensured at the same time. An engineering structure health monitoring wireless sensing network established by the intelligent wireless sensing network node based on energy self-supplying can replace a traditional battery supply monitoring network system, and has the advantages of light weight, small size, no environment pollution, no need of replacing battery, and the like. The invention also discloses a piezoelectric transducer comprising a cantilever beam, wherein the other end of the cantilever beam is provided with a mass block, at least one piezoelectric piece is attached to the cantilever beam, and the thickness of the end of the cantilever beam connected with an external structure is greater than the thickness of the end provided with the mass block.

The invention discloses a washing machine door lock detection structure and relates to the technical field of washing machines. The structure comprises a control panel base, an upper cover, a door lock and a controller, a spring bolt of the door lock is arranged on the control panel base, and a lock hole of the door lock is formed in the upper cover; the spring bolt stretches out or retracts backunder control of the controller, the structure further comprises a detection switch, and when the upper cover is not closed in place, the spring bolt is not blocked and completely stretches out, and the detection switch sends an upper cover non-locking signal to the controller at this moment; when the upper cover is closed in place, the spring bolt is blocked by the lock hole and partially stretches into the lock hole, and the detection switch sends an upper cover locking signal to the control at this moment. The invention further discloses a washing machine door lock detection method. According to the washing machine door lock detection structure, the stretching state of the spring bolt is detected through the detection switch, whether or not the upper cover is truly closed is accuratelyjudged according to the difference of the stretching length of the spring bolt, the washing machine safety problem caused by inaccurate detection signals in the process of locking the upper cover of an existing door lock is avoided, and the safe usability of the washing machine is improved.

The invention discloses a chemical material mixing device and mainly relates to the technical field of chemical material mixing. The device comprises a machine frame, wherein a first guide rail is horizontally arranged on the lower portion of the machine frame, a first sliding block is arranged on the first guide rail, a first nut is arranged on the first sliding block, and a first lead screw is arranged in the first nut; a connecting plate is arranged on the first sliding block, a mixing cylinder is arranged on the connecting plate, a heat insulation cotton layer is arranged on the side wall of the mixing cylinder, and an electromagnetic induction heating coil is arranged on the heat insulation cotton layer; a movable supporting frame is horizontally arranged above the mixing cylinder, a cover is arranged on the movable supporting frame, a rotary shaft is arranged in the middle of the cover, a stirring paddle is arranged on the rotary shaft, and a cleaning device is arranged on the movable supporting frame. The device has the advantages that materials can be dried while being mixed, so that production cost is reduced and production efficiency is improved; materials left in the mixing cylinder can be cleared automatically, so that the labor intensity of workers is relieved.

A method for optimizing the operation of an electro-thermal coupling integrate energy system is disclosed. An objective function and constraint conditions of the operation optimization of the electro-thermal coupled integrated energy system are established, so as to establish the operation optimization model of the electro-thermal coupling comprehensive energy system, then the simulation model ofheat network and heat load state is established, taking the temperature of heat medium injected into the heating network in the operation optimization result as the input to calculate the actual stateof the heating network and heat load, at last, the operation optimization flow of the electrothermal couple integrated energy system is established, the results of simulation model are compared withthose of optimization model, and error values are judged. As the error exceeds the allowable range, the resolution of the heating network and the heat load model is reduced and the above steps are repeated, otherwise, the method stops, thereby determining the appropriate resolution of the heat network and the heat load model. The method can fully consider the slow dynamic process of the change ofthe heat network and the heat load state in the dispatching instruction cycle, and effectively ensures the user comfort while realizing the efficient and economical operation of the system.

The present invention provides an AGV mobile device, comprising a frame, and a steering device and a drive device mounted on the frame. The steering device comprises a pair of steering wheels, a steering shaft, a steering motor, a connection plate, a gear, a rack, link assemblies, and a steering control system for controlling the AGV mobile device to steer. The operation of the steering motor is controlled by the control system on the AGV mobile device, and wheels can rotate by a certain angle through the transmission of the gear and the rack, and the transmission of links, and finally the AGV mobile device can accurately and flexibly run along a preset handling path.

The invention relates to an X-ray digital nondestructive detection device of a welding seam of a storage tank, and a detection method using the same, and mainly solves the problems of high flaw detection cost and influence on detection quality in the conventional X-ray film method. The device comprises a riding seat type gantry rack, movement guide mechanisms, a transverse movement mechanism, longitudinal movement mechanisms and a digital imaging system, wherein the riding seat type gantry rack consists of an outer rack and an inner rack; a mechanical buffer is arranged between the inner rack and the outer rack; the transverse movement mechanism is arranged at the upper end of the outer rack; two movement guide mechanisms are respectively arranged on the lower parts of the outer rack and the inner rack; and a longitudinal movement mechanism is respectively arranged on the opposite inner sides of the inner rack and the outer rack. The digital nondestructive detection on the welding seam of 0 to 3m through a digital imaging device and an X-ray flaw detector is realized by using each mechanism in the device and using a synchronization telescoping driving control method. The method is high in degree of automation, high in positioning accuracy and high in imaging speed; and the x-ray digital nondestructive detection on the welding seam of the storage tank can be reliably, objectively and accurately accomplished.

The invention provides an automatic fruit and vegetable peeler. The automatic fruit and vegetable peeler comprises a rack (1), an automatic fruit feeding device, an automatic peeling device (18), an automatic cutting end device, an automatic fruit unloading device (17) and a peel and pedicel automatic collecting and conveying device (19). The automatic fruit and vegetable peeler has the following beneficial effects: (1) the rotation of a conveying turntable, up-and-down movement of a peeling cutter, operation and stop of a cutting upper end device as well as a cutting blade are controlled precisely and respectively through optical switches of three parts, so that a stream line type automatic peeling process is realized; (2) an automatic cutting upper end mechanism of the peeler means that a lead screw moves under the control of photoelectrical induction, so that an automatic height-seeking function and high precision are realized; and (3) the feeding fruits are conveyed by a turntable, so that convenience is brought about to the operation of industrial flow line production; and high precision is obtained due to the cooperation of the optical switch.

The invention belongs to the technical field of computerized flat knitting machines, in particular to a method for controlling operations of a shaker of a computerized flat knitting machine. The method comprises the following steps: collecting real-time operation information of a servo motor; inputting the obtained operation information of the servo motor into an information processor to calculate; calculating an offset value in the step (2) by adopting an adaptive fuzzy PID control algorithm so as to obtain current revised data and then inputting the revised data into a program controller; calculating current Kp, Ki and Kd values by utilizing a fuzzy self-tuning rule and carrying out discretization processing through an incremental PID calculation; and outputting control signals to the servo motor by the program controller according to a control program to realize the automatic operation error correction and the precise operation control of the shaker. The invention can avoid needle transferring and connecting deviations and ensure that the computerized flat knitting machine works in an optimal state all the time, thereby solving the problem of unstable precision of the shaker inan operation process of the computerized flat knitting machine.

The invention discloses an optimal method for controlling a mixed model of a first-order reaction continuous stirred tank reactor (CSTR). The method can ensure that the first-order reaction CSTR can rapidly, accurately, stably operate under the following two conditions: a transient process that a system is started and then operates into a certain stable operating point, and a transient process that the system converts into the other stable working point from a certain stable operating point. Compared with the existing first-order reaction CSTR control method, the method provided by the invention has obvious advantages.