818results 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 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 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 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 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 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 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 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.