59results about How to "Accurate working condition" patented technology

The invention relates to a dynamic voltage regulation system applied for low energy consumption, which is characterized by comprising an on-chip monitoring module (1), a self-adaption power supply voltage regulation module (2), a dc-dc convertor (3), a dynamic voltage regulation initial module (4) and a main circuit (5), wherein the on-chip monitoring module (1) monitors errors; the self-adaption power supply voltage regulation module (2) self-adaptively adjusts voltage according to a real-time system parameter; and the dynamic voltage regulation initial module (4) determines the initial voltage of the system and the level of a buffer. The method and the system lower the working voltage of a chip, reduce voltage margin, expand the range of the working voltage and reduce the power consumption of the chip.

The invention relates to a system and a method for improving the read-write success rate of radio frequency identification (RFID) tags on a movement production line. The system consists of a production management application server, read-write control, data detection, error correction control and security protection; the read-write control, the data detection, the error correction control and the security protection are respectively connected with the production management application server through a wired network and/or a wireless network; four different terminals using a computer, RFID, automatic control and the like and the production management application server execute tasks respectively set and are tightly matched; the data in the RFID tags is subjected to the functions, such as precise identification, multiple writing, verification, information protection, and automatic sorting of failure lags on the movement production line; the read-write success rate of the RFID lags data on the movement production line is remarkably improved; the productive efficiency is optimized; and the intelligent management for the production line is realized, so the system and the method provided by the invention have excellent polularization and application prospects on the modern industrial production line.

The invention relates to a control method of an electric vehicle simulating engine flameout condition of a fuel vehicle, a system and the electric vehicle, wherein the control method comprises a stepof simulating a working state of a manual gear shift, an engine speed simulation step, a data acquisition step, a shift judgment step, a Vehicle speed judging step, A timing step and a flameout signaltransmission step, By obtaining the current speed of the electric vehicle, engine simulation rotational speed and current gear value, judging and comparing with corresponding threshold value, entering timing according to judging and comparing result and sending out flameout signal according to judging according to timing, the series of specific steps are finished, , thus finally realizing the fuel vehicle engine flameout condition simulation of electric vehicle , The electric vehicle can truly and reliably simulate all kinds of situations in which the traditional fuel vehicle stops because ofthe improper operation of the driver in the driving school study or test process, so that the operation method and operation result of the electric vehicle and the traditional fuel vehicle are consistent, and the electric vehicle can be applied in the driving school.

The invention discloses an automated test method and system for an intelligent router. The automated test method comprises the steps that the intelligent router downloads test resources from a server and reads and records various state parameter values in real time, wherein the test resources include a test page, a test file and a test resource description file; an automated test device is connected with the intelligent router through wifi and reads initial test strength, a test page list and a test file download list from the test resource description file of the intelligent router, wherein the test strength is the quantity of opened test threads, the test threads in the quantity corresponding to the initial test strength are opened, and all the test threads are in charge of performing circular access, and download or upload operation on all the pages in the test page list or all the files in the test file download list. The automated test method and system for the intelligent router belong to the field of the network communication technology. By means of the automated test method and system, automated test can be performed on page access speed, file download or upload speed, stability under pressure and the like of the intelligent router.

The invention discloses a gas stove control method and a gas stove. The gas stove control method comprises the steps of acquiring a detection temperature of the bottom part of a pan body; calculatinga temperature change rate of the bottom part of the pan body according to the detection temperature, wherein the temperature change rate reflects rangeability of the detection temperature in a time period; comparing the temperature change rate with a first preset temperature change rate; when the temperature change rate is smaller than or equal to the first preset temperature change rate, acquiring a water-cooking drying-heating temperature corresponding to the current detection temperature; and when the detection temperature of the bottom part of the pan body is larger than or equal to the water-cooking dry-heating temperature, turning off the gas stove. According to the technical scheme provided by the invention, the setting accuracy of the dry-heating temperature is improved, and dry-heating is effectively prevented.

The invention provides a method and device for detecting the standing-wave ratio of an RRU. Calibration data are stored in the RRU. The method includes the steps that swept-frequency signals are generated; the swept-frequency signals are sent to equipment to be detected through a preset training sequence; the RRU is adopted for capturing RPD feedback data and OPD feedback data of the equipment to be detected; reflection parameters are calculated according to the RPD feedback data and the OPD feedback data; by the adoption of the reflection parameters and the calibration data in the RRU, accurate reflection coefficients are calculated; the accurate reflection coefficients are adopted for calculating an average reflection coefficient in a designated bandwidth; the standing-wave ratio is calculated through the average reflection coefficient. The method and device are used for accurately detecting the standing-wave ratio of the RRU.

The invention discloses a device and a method for detecting the working state of an oil press and the oil press. The device for detecting the working state of the oil press comprises a detector for detecting the physical parameters of a motor in the oil press, a first storage for storing corresponding relation between the physical parameters of the motor and the working state of the motor, and a processor, wherein the processor is respectively connected with the detector and the first storage and is used for inquiring the corresponding working state of the motor from the first storage according to the physical parameters detected by the detector. By virtue of the device, the method and the oil press, an effect of accurately detecting the working state of the oil press is achieved.

The invention relates to the technical field of transmissions, and provides a hydraulic torque converter signal authenticity judgment method and a system. The method comprises the steps of: obtaining present rotating speed of an engine of a vehicle, the driving speed and a current parameter of a hydraulic torque converter locking control electromagnetic valve; comparing the obtained rotating speed of the engine, the driving speed and the current parameter of the hydraulic torque converter locking control electromagnetic valve with preset rotating speed calibration value, vehicle speed calibration value and current parameter calibration value through initial conditions; continuously monitoring contents of the initial conditions in a preset continuous monitoring time period to judge authenticity of hydraulic torque converter signals; and a transmission control unit obtaining true current signals of a hydraulic torque converter and an accurate working state of the hydraulic torque converter to improve the gear shifting quality of transmissions.

The invention relates to a forward, idle and reverse steering mechanism. The steering mechanism comprises one dual ratchet wheel sleeve, wherein a forward one-way ratchet gear ring and a reverse one-way ratchet gear ring distributed on the axial direction of the dual ratchet wheel sleeve; one pawl seat, wherein the first pawl and second pawl which can move up along the direction perpendicular to the axis of the dual ratchet wheel sleeve which are installed on the pawl seat; one eccentric driving mechanism for driving the action of the first and second pawl, the axis of the eccentric shaft in the eccentric driving mechanism is perpendicular to the axis of the dual ratchet wheel sleeve; one tool handle for putting the pawl seat in rotation, such tool handle is connected and fixed with the eccentric wheel or eccentric shaft in the eccentric driving mechanism so as to realize the linkage between a tool handle and an eccentric wheel. The mechanism has the advantages of not only meeting the requirements of multiple situations on working conditions, but also realizing the torque transmission and status switching through the handle directly.

The invention discloses an emergency lighting controller circuit which comprises a main control CPU and a firefighting linkage communication circuit, a display screen communication circuit, a terminal communication circuit, a power switching circuit, an information storage circuit, an active node detection circuit and an external drive circuit controlled by the main control CPU, wherein the power switching circuit is divided into the first-level power switching, the second-level power switching and the third-level power switching; the active node detection circuit is used for detecting external active signals; and the external drive circuit is used for driving external equipment. According to the invention, the 'guide nearby' principle of an emergency evacuation strobe light working independently before is transformed into a 'safe guide' principle. In the case of fire, the emergency lighting controller circuit and a fire alarm system carry out linkage control, the emergency evacuationlamps are subjected to intelligent control according to the on-site fire information, the guide direction is adjusted, and the people are dynamically guided to safely, accurately and quickly evacuate the dangerous area.

The invention discloses an online monitoring device for a multi-parameter high-voltage bushing. The online monitoring device comprises a bushing adapter and a four-in-one bushing oil state sensor which are connected with a bushing state acquisition unit; the bushing adapter is used for monitoring leakage current of the bushing capacitor and high-frequency pulse to-ground partial discharge current signals of the bushing capacitor; the four-in-one casing oil state sensor is used for monitoring temperature, pressure, micro-water and hydrogen content signals of insulating oil in the casing; the casing state acquisition unit is used for acquiring signals monitored by the casing adapter and the four-in-one casing oil state sensor; and the analysis processing unit is used for diagnosing and pre-judging various faults in the casing pipe based on the signals acquired by the casing pipe state acquisition unit and the multi-state quantity. According to the invention, high-voltage bushing monitoring is carried out based on multiple state quantities, bushing faults are comprehensively analyzed and diagnosed, various faults of the bushing can be accurately and timely found, early warning intervention is timely carried out, and further expansion of accidents is avoided.

The invention discloses a road condition preview method suitable for integrated control of a vehicle chassis. The method is used for carrying out online real-time scanning, estimation and measurementon information such as elevation, slope, inclination, unevenness and the like of a road surface, and comprises the following steps: firstly, realizing elevation information extraction and 2.5 D reconstruction of the road surface in front of a vehicle by installing a plurality of sensors; secondly, designing point cloud motion compensation of timestamp synchronization, establishing feature point matching of a local map and a global map, and then, improving terrain scanning precision; next, realizing map fusion and update by utilizing Kalman filtering; and finally, extracting an elevation data sequence of the terrain grid at the tire, and completing extraction of slope, inclination and unevenness by combining the elevation data sequence and elevation information of the road surface in frontof the vehicle. According to the invention, the adaptability and matching performance of vehicle chassis integrated control to road conditions are improved, the problems of failure, instability and slow updating of GPS signals are solved, and the scanning precision and stability of the terrain in front of the vehicle are improved.

The invention discloses a gear control switch for an electric guitar. The gear control switch for the electric guitar is characterized in that the gear control switch comprises a framework, a driving lever with a ball, wafer installation racks, an inner wafer and an outer wafer, the framework is provided with a cavity for containing the ball, the driving lever penetrates through the cavity of the framework, the inner wafer and the outer wafer are arranged on the wafer installation racks respectively, the root portion of the inner wafer and the root portion of the outer wafer are isolated from each other through an insulating plate, the top of the inner wafer makes contact with the top of the outer wafer in a working state, the top of the outer wafer is higher than the top of the inner wafer and can make contact with the driving lever, the wafer installation racks and the framework are of an integral structure. The gear control switch is good in hand feeling when operated, durable in use and accurate in control, a pickup can be accurately controlled to work when the gear control switch is used for the electric guitar so that beautiful music can be played through the electric guitar.

The invention discloses a machine-vision-based fault diagnosis method and system for a large landscape light group. The method comprises: acquiring an image in normal working of a landscape light group by a camera and establishing a standard library; with the camera, acquiring an image in working of the landscape light group in real time; carrying out image processing on the obtained image; on thebasis of a matching recognition algorithm, carrying out matching and recognition on the image in the standard library and finding out a most similar image; and then determining whether the landscapelight group has a faulty problem based on the difference between the real-time image and its most similar image. The method has the following beneficial effects: firstly, the manpower is liberated, the work of the observer is reduced, and the working state of the landscape light group can be obtained accurately; secondly, the staff member can be warned timely to carry out maintenance and thus thelandscape light group can work normally, and the environment is beautified; and thirdly, the whole process is completed through relevant equipment and thus the work intelligence is enhanced further, so that the automation degree of the work is improved substantially.

The invention provides a method and a device for automatically adjusting the working state of a GPS device. The method comprises the following steps: S1, a sensor system collects the environmental parameters of the device; S2: the processor of the device receives the environmental parameters collected by the sensor system, and obtains the scene mode of the device according to the environmental parameters; S3: the processor adjusts the working state of the GPS of the device according to the scenario mode. The invention provides a method and a device for automatically adjusting the working stateof a device GPS, The environment parameter of the device is collected by the sensor system, and the scene mode of the device is judged according to the environment parameter. The processor of the device automatically adjusts the working state of the GPS according to different scene mode to regulate the power consumption of the GPS, so as to achieve the purpose of the invention.

The invention provides an emergency power supply system. The emergency power supply system comprises a battery master control module, a real-time power failure detection module, an automatic switching module, a real-time monitoring module, a charge-discharge management module, a thermal management module, a safety protection module and a communication module and is characterized in that the real-time power failure detection module, the automatic switching module, the real-time monitoring module, the charge-discharge management module, the thermal management module, the safety protection module and the communication module are separately connected with the battery master control module. The emergency power supply system provided by the invention has the characteristics of real-time power failure detection, automatic switching, real-time detection on storage battery state and the like, a PLC neural network, a CAN bus and an industrial Ethernet communication interface are adopted, various communication interfaces such as RS-485, RJ45 and PLC can be used, remote configuration and system management can be achieved, the working condition of a storage battery is remotely monitored, accurate and high-efficiency management is performed, and the usage of an emergency power supply is effectively ensured.

The invention provides a digging and anchoring all-in-one machine dynamic modeling and simulation method which comprises the following steps: setting a plurality of three-way acceleration measuring points on a digging and anchoring all-in-one machine, and obtaining actually measured acceleration data of the measuring points; determining load information of a cutting roller, and obtaining a working load spectrum of the digging and anchoring all-in-one machine in a working cycle; establishing a complete machine multi-body dynamic model, performing dynamic simulation by taking the operation parameters and the working load spectrum as excitation, and calibrating the actually measured acceleration data of the measuring points and the acceleration simulation data of the corresponding measuring points to obtain a target complete machine system dynamic model; and establishing a finite element model of a single key component, extracting a boundary load of the key component in a working cycle from a simulation result of the target complete machine system dynamics model as a boundary condition, and performing structural strength finite element simulation to obtain a stress state of the key component in each working condition in the working cycle. The problems that key component design lacks theoretical basis and the adaptability of designed finished products is poor are solved.