51results about How to "Understand performance" patented technology

The invention relates to a Beidou satellite navigation system performance monitoring device. The Beidou satellite navigation system performance monitoring device comprises a Beidou satellite text reception unit, a Beidou text monitoring analysis unit, a Beidou satellite autonomous positioning unit, a Beidou satellite time service unit, a positioning result detection unit, a synchronization precision detection unit, a user interaction unit and a power supply unit. The invention further provides a monitoring method for the Beidou satellite navigation system performance monitoring device. Abnormal text and data are timely identified and indicated in a satellite text monitoring process, corresponding measures can be conveniently adopted, reduction of damage caused by the abnormal text data is facilitated; accuracy of each type of text data can be identified, which satellite has abnormal parameters can be acquired through back stepping according to the positioning and time service result, abnormality reasons can be rapidly positioned on the condition of positioning and time service, and solution efficiency is improved. Beidou positioning and time service are carried out in real time, mastering performance of Beidou systems can be facilitated, reasonable positioning and time service algorithms can be selected, and development of high-performance Beidou application products is facilitated.

The invention discloses an in-vitro intervention embolism therapy simulation system which comprises a micro-vessel simulation area, a blood flow simulation area and a pressure monitoring area. The micro-vessel simulation area is placed in a constant temperature device and communicated with the blood flow simulation area through a pipeline, the pressure monitoring area is used for monitoring a pressure value in the pipeline, and the micro-vessel simulation area comprises a micro-fluidic chip. According to the in-vitro intervention embolism therapy simulation system, the difference of terminal embolism performances is quantified by observing pipeline classification in the chip plugged by different embolism agents, so that the terminal embolism performances of the different embolism agents can be more visually evaluated, and a simpler and more convenient data accumulation program is provided for research and development persons. Besides, the performances of the embolism agents are more effectively understood, clinical risk is reduced, blood flow washing resistance effects of the different embolism agents can be accurately analyzed in the pressure monitoring area under different conditions, so that embolism strength is evaluated in vitro, and blood vessel recanalization time can be monitored.

The invention relates to a traction pin loading device for a strength test of a car body. The traction pin loading device includes a base, a support base, a loading mechanism and a control unit, wherein the base is fixed on the ground, the support base is fixed on the base, and the tested car body is placed on the support base; the loading mechanism includes a transverse loading mechanism body, a longitudinal loading mechanism body and a perpendicular loading mechanism body, wherein the transverse loading mechanism body, the longitudinal loading mechanism body and the perpendicular loading mechanism body exert load on a traction pin in the transverse direction, in the longitudinal direction and in the perpendicular direction respectively and are connected with the control unit. The traction pin loading device is simple in overall structure and capable of performing a loading test on the traction pin in the three directions, satisfying the requirements of the traction pin strength test of a motor train unit and a metro and guaranteeing the accuracy and reliability of test data. In this way, the performance of the car body can be known better, and a better guarantee is supplied to the quality improvement of a vehicle.

The invention provides a method for measuring key parameters of VOC (Volatile Organic Compounds) emission in an in-vehicle non-metallic material, which is characterized by: deriving a balance emissionmodel of VOC in the non-metallic material at an environment cabin closed stage and a mass transfer diffusion model of the VOC in the non-metallic material at a direct current emission stage based ona mass transfer emission rule, a mass conservation law and a Henry's law, and measuring key parameters of an emission process of the in-vehicle non-metallic material in combination with actually measured data, wherein the key parameters comprise an initial emittable concentration C0, a distribution coefficient K, and a diffusion coefficient Dm. According to a device and the method for measuring the key parameters of the VOC emission in the in-vehicle non-metallic material, on the basis of a mass transfer diffusion rule and the mass conservation law of the VOC in the non-metallic material underdifferent conditions, the balance emission model of the VOC in the non-metallic material under the condition of closed environment cabin and the mass transfer diffusion model of the VOC in the non-metallic material under the condition of direct current emission are established, in combination with the actually measured data, the key parameters of the emission process of the in-vehicle non-metallic material are measured at the same time, wherein the key parameters comprise the initial emittable concentration C0, the diffusion coefficient Dm and the distribution coefficient K, thereby achieveing the goal of establishing a VOC prediction model of the in-vehicle non-metallic material.

The invention relates to a high-efficiency electrochemical reactor which comprises a sealed groove, wherein a plurality of pole plates are arranged in the groove in parallel, and stirring blades are arranged among the pole plates and are rotated through a rotating shaft. In the invention, one-dimensional contact between the water flow and each pole plate is changed into three-dimensional contact,thereby achieving reasonable structure and sufficient reaction.

A shell-and-tube heat exchanger performance testing device comprises a shell-and-tube heat exchanger, a cold water tank, a hot water tank and a computer, wherein a tube pass cavity and a shell pass cavity are formed in the shell-and-tube heat exchanger; a water inlet and a water outlet are formed in the cold water tank; a water inlet and a water outlet are formed in the hot water tank. A shell-and-tube heat exchanger performance testing way comprises the following steps: 1, filling a pipe network and the shell-and-tube heat exchanger with a fluid; 2, selecting a specific pipeline in the pipe network to form a cold flow path and a hot flow path; 3, starting circulation of the cold flow path and the hot flow path; 4, acquiring data; 5, calculating the heat transfer performance and the resistance performance of the shell-and-tube heat exchanger. Multiple pipelines are arranged in the pipe network, each pipeline is equipped with a valve, through adjustment of opening and closing of each valve, different testing ways can be selected; altogether, four testing ways can be implemented, and in multiple testing ways, a user can more thoroughly understand the performance of the heat exchanger, so that the user can select a better working way on different occasions.

The invention relates to a measuring method of X-ray diffraction peak height ratio and discloses a fixed point measuring method of X-ray diffraction peak height ratio, including the following steps: (1) a powder sample is tableted and measured on an X-ray diffractometer so as to determine that the peak height ratio of which peaks needs to be calculated to represent material characteristic according to the phase composition of the sample; (2) the counting interval for calculating peak height ratio by the fixed point measuring method is optimized; (3) the diffraction peak height ratio result of the sample is obtained by common continuous scanning method; (4) the diffraction peak height ratio result of the sample is obtained through fixed point measuring method; (5) the measured results of the step (3) and the step (4) are compared; (6) sample preparation is completed once again and the diffraction peak height ratio result of the newly prepared sample is measured through fixed point measuring method. The invention greatly increases accuracy and repeatability of X-ray diffraction peak height ratio measurement, thereby people can know better about material characteristic; moreover, the invention provides more accurate basis for presuming cycle life and electricity storage of cell.

The invention relates to a battery charger with an LED (Light-Emitting Diode) group for display, which comprises a charger body and an intelligent charging circuit unit arranged in the charger body. The LED group is arranged on the charger body; a sending module for detecting the capacity and the charging state of a rechargeable battery is arranged in the intelligent charging circuit unit; the battery charger is also provided with a control circuit for controlling the LED group to be continuously lightened or circularly emit light; the LED group is connected with the control circuit; and the charging state of the rechargeable battery and the capacity of the rechargeable battery are displayed by the LED group. By arranging the sensing module and the control circuit, the defects of a conventional charger are effectively overcome and the capacity and the charging state of the rechargeable battery are displayed, so that a user sufficiently knows the performance of the battery.

The invention discloses an engine flow resistance testing device and a testing method thereof. The engine flow resistance testing device comprises an ultrasonic wave flow sensor, a mounting mechanismfor mounting the ultrasonic wave flow sensor on an engine, a processor for processing acquired information, and a display device. The ultrasonic wave flow sensor is connected with the processor through a data wire I. The processor is connected with the display device through a data wire II. The mounting mechanism comprises a mounting bracket, a sensor mounting chamber and a fixing mechanism. The sensor mounting chamber is connected with the mounting bracket. The ultrasonic wave flow sensor is mounted in the sensor mounting chamber. The fixing mechanism is arranged on the mounting bracket. Themounting bracket is provided with a track. A mounting chamber I is slidably connected with the track. The whole sensor mounting chamber can move along the track. The ultrasonic wave flow sensor can befinely adjusted in a horizontal plane. The testing device and the testing method according to the invention are used for testing the flow of each oil duct of the engine, thereby substantially understanding true data of each oil duct flow resistance (namely oil consumption) and performance of the engine.

The invention belongs to the technical field of educational products, and discloses a study inspiring method and system. The method comprises the steps that activity arrangement information is transmitted to a parent end and a student end by a teacher end; rewarding information is generated by the parent end according to the activity arrangement information, and the rewarding information is transmitted to the student end; activity result information is sent to the parent end and the student end; corresponding rewards are generated by the parent end according to the activity result informationand the reward information and sent to the student end. By arranging the teacher end, the parent end and the student end, the activity arrangement information and the activity result information are sent by the teacher end, the rewarding information can be generated by the parent end according to the activity arrangement information sent by the teacher end to inspire students to actively participate in activities and study hard, good study habits are formed to promote the healthy development of the students, and the corresponding rewards are directly transmitted to the student end by the parent end when the examination score and activity result of the students meet rewarding requirements to supervise and urge parents to fulfill rewarding promises.

The invention relates to the technical field of textile, and discloses a coated fabric component detection method which comprises the following steps: 1, pretreatment: putting cloth to be analyzed into a washing machine for cleaning, cutting the cleaned cloth into cloth blocks with fixed sizes, and putting the cloth blocks into a constant-temperature and constant-humidity box for pretreatment; 2,preparing a density gradient solution, and 3, analyzing components: preparing the cloth into small balls, putting the small balls into the density gradient solution, and measuring the density of the cloth according to the suspension positions of the small balls after the small balls are balanced so as to judge the components of the cloth. According to the coated fabric component detection method,the adopted detection method can obtain the component composition of the fabric only through a simple physical mode, and is suitable for some small laboratories or laboratories of some fabric use enterprises, and through a simple method and component composition a user can better understand the performance of the cloth, and the cloth is used according to the characteristics of the cloth.

The invention discloses a sensory evaluation method for predicting baked food based on a BP neural network. The method comprises the steps that S1, baking the baked food under different cooking conditions; S2, performing fuzzy sensory evaluation on the baked food to form a fuzzy sensory score; S3, creating data sets of different cooking conditions and fuzzy sensory scores of the baked food; S4, constructing an artificial neural network learning model based on a BP algorithm by taking different cooking condition data of the baked food data set as an input layer and taking the fuzzy sensory score as an output layer, and training until the artificial neural network learning model is stable; and S5, taking different cooking condition data of the unknown baked food as an input layer, and predicting a fuzzy sensory score of the unknown baked food according to the artificial neural network learning model. The cooking effect of the food can be predicted through the cooking parameters, the prediction accuracy of the model is high, cooking condition reference can be conveniently provided for a user, and the cooking effect of the steaming and baking integrated machine is predicted.

The invention discloses a display stand for an iron phosphate battery, comprising a box body, a motor is fixedly connected to the right side of the bottom of the inner wall of the box, and a driving wheel is fixedly connected to the output end of the motor, and a drive wheel is fixedly connected to the bottom of the inner wall of the box. The center is fixedly connected with a bearing seat, the top of the bearing seat is movably connected with a rotating shaft, the surface of the rotating shaft is provided with a driven wheel, and the driven wheel is connected to the driving wheel through a belt, and the top of the rotating shaft Extends to the outside of the enclosure. The present invention solves the problem that the existing iron phosphate battery display rack cannot rotate by setting the rotating shaft, the through hole, the driving wheel, the belt, the motor, the bearing seat and the driven wheel. The utility model has the advantage of good rotation effect, facilitates users to understand the performance of the iron phosphate battery more comprehensively, increases the sales quantity of the iron phosphate battery, has a simple structure, and is worth popularizing.

The invention provides a unit and a method for reader information statistics of a radio frequency recognition system. The unit comprises a starting module, a databank module, a file storing module and a timer module, wherein the starting module is an initialization module for starting reader information statistics; the databank module is used for completing checking, establishment and delete of tag information; the file storage module is used for establishing an information statistics control file and a reader information file; the timer module is used for deleting expiry databank memories at regular time. The method comprises the following steps: starting reader information statistics, carrying out the reader information statistics, and releasing the memory through the timer module. Through the adoption of the method, tag information can be acquired under the condition that no client is available, and moreover the statistics is only executed once, so that the data information can be conveniently compared with that of the client, and the system fault can be positioned; through the adoption of the method, the reader information can be continuously counted under the condition that the external environment is not stable, for example, the power is cut off, the fault can be conveniently positioned, and the equipment property can be mastered; moreover, the method is applicable to multiple application situations.

The invention relates to a computer system, in particular to a registration code management system and a method for managing the registration code management system. The registration code management system and a corresponding data base are arranged in a server of a company; the server is connected with a browser through a B / S structure; the registration code management system comprises a registration module, a manager module and a registration machine module, wherein the registration module comprises basic information registered by a user and registration code information generated every time, the manager module comprises establishment, editing, inquiring and backup of the information of the user and the registration code information, and the registration machine module is use for generating registration codes. The registration and management of the registration codes in a normalized, routing and instrumental mode is changed into the application of an informationized technology, and the amount of registration information of users can be flexibly adjusted according to different users. Now that the company masters core data of users, the situations that the performance of a salesman is learned and the right of the salesman is limited can be reflected timely through the registration code management system.

The invention provides a method of a real-time monitoring remote embedded system. The remote embedded system is monitored by a concentration monitoring equipment through a network, which comprises: step 1, different types of monitoring information is produced when the remote embedded system enforces a task. Step 2, the concentration monitoring equipment enters the remote embedded system and informs the remote equipment of the type of the monitoring information needed to be output. Step 3, the remote embedded system builds a task of sending the monitoring information. Step 4, the remote embedded system sends the types of monitoring information needed by the concentration monitoring equipment to a message queue. Step 5, the task of sending monitoring information gets monitoring information from the message queue. The monitoring information is sent to the monitoring equipment through the network.

The invention discloses a detection method and device for failure probability of an illuminating system. The detection method for failure probability of the illuminating system comprises the following steps of: acquiring the failure probability of multiple subsystems in the illuminating system in the first time quantum; determining the failure probability of the illuminating system in the first time quantum according to the failure probability of the subsystems in the first time quantum; determining the failure probability of the subsystems in the illuminating system in the second time quantum according to the failure probability of the subsystems in the illuminating system in the first time quantum; determining the failure probability of the illuminating system in the second time quantum according to the failure probability of the subsystems in the second time quantum; and determining the failure probability of the illuminating system according to the failure probability of the illuminating system in the first time quantum and the failure probability of the illuminating system in the second time quantum. According to the detection method and device for the failure probability of the illuminating system, the performance of the illuminating system can be more accurately known.

Disclosed is a control circuit of a virtual-reality exhibit exhibition machine of a digital museum. The control circuit is used for controlling a work circuit of the virtual-reality exhibit exhibition machine of the digital museum. The control circuit is connected with input circuits of an anode and cathode conversion relay, an exhibit pallet rotation motor relay, a reflector-lamp and exhaust-fan conversion relay, a time-controller reset relay, a digital media player VGA signal conversion relay, a computer VGA signal conversion relay and a crossfeed relay. The work circuit is connected with output circuits of the anode and cathode conversion relay, the exhibit pallet rotation motor relay, the reflector-lamp and exhaust-fan conversion relay, the time-controller reset relay, the digital media player VGA signal conversion relay, the computer VGA signal conversion relay and the crossfeed relay. The control circuit of the virtual-reality exhibit exhibition machine of the digital museum is capable of realizing mixed exhibition of images and exhibits.

The invention provides automatic water draining device test equipment based on gas extraction. The automatic water draining device test equipment comprises a water storage box, a supporting frame, a negative pressure source, a negative pressure water tank, an electric ball valve and a total controller; the supporting frame is arranged in the water storage box, and the negative pressure source andthe negative pressure water tank are connected; the negative pressure water tank is arranged at the top end of the water storage box, and a water inlet and a water outlet are formed in the negative pressure water tank; the water inlet communicates with the inner bottom end of the water storage box through a pipeline, and the electric ball valve is arranged at the water inlet of the negative pressure water tank; the total controller is electrically connected with the negative pressure source and the electric ball valve, and an automatic water draining device is placed in the water storage box;and a water feeding pipe and a negative pressure balancing pipe of the automatic water draining device both communicate with the water outlet of the negative pressure water tank. The interior of the negative pressure water tank is a negative pressure environment to simulate a gas extraction environment, the automatic water draining device is placed in the simulating environment and conducts continuous water draining and storage under different conditions, reliability of the automatic water draining device is tested, and the testing problem of the reliability of the automatic water draining device is solved.

The invention discloses a full-sea-depth working condition simulation test system of a seawater hydraulic adjustable ballast device, and belonging to the related field of submersibles; the test systemcomprises a control valve group, three hand pumps, a three-plunger pump station and an open type water tank, wherein the control valve group is formed by integrating a plurality of valves; the control valve group comprises a plurality of stop valves, a port I and a port II are formed in the integrated control valve group; the port I is connected with the open type water tank; the port II is connected with an outlet of the three-plunger pump station; the three hand pumps are respectively a first hand pump, a second hand pump and a third pressure pump; each stop valve is controlled to be openedand closed through the first hand pump and the second hand pump, the three-plunger pump station and the third hand pump are adopted to simulate the marine environment, the first hand pump and the second hand pump are adopted to simulate a hydraulic source, and the open type water tank is adopted to simulate the ballast water tank and provide a water source for the three-plunger pump station. According to the system, various experimental data can be conveniently obtained, and reliable guidance is provided for the actual seawater hydraulic adjustable ballast device to work under the sea.

The invention provides a loading box assembly for side guard plate testing and a hydraulic support test-bed, and relates to the technical field of coal mining equipment detection. The hydraulic support test-bed comprises a loading box, wherein the loading box comprises a box body and a floating block; supporting plates are arranged on two opposite sides of the floating block; a plane on which thesupporting plates are located is opposite to side guard plates of a hydraulic support to be tested; accommodating grooves are formed in the supporting plates; two clamping plates are assembled in theaccommodating grooves under guidance; driving parts comprise vertical and lateral hydraulic cylinders; the lateral hydraulic cylinder is inserted into the two clamping plates; a push rod extends outwards to load the side guard plate. The vertical hydraulic cylinder is fixed to the lower end part of a vertical channel in a vertical panel, and can drive the two clamping plates to move up and down, thus adjusting the loading position of the lateral driving part. When in use, the hydraulic support is placed at a corresponding position, the lateral hydraulic cylinder is controlled to extend outwards, and opposite extrusion force is formed on the two side guard plates of the hydraulic support, which is closer to the actual working condition, thereby solving the existing problem of limited function and improving the reliability of the hydraulic support.

The invention discloses all-position TIG pipe welding equipment and a welding process thereof, and relates to the technical field of the welding equipment and the welding process thereof. The all-position TIG pipe welding equipment aims at solving the problems that the existing TIG pipe welding equipment and a welding process thereof are not perfect enough in welding performance and relatively lowin welding flexibility. The welding process comprises the following steps that 1, functional characteristics are determined; 2, preheating treatment is carried out; 3, welding wires are selected, filling welding wires are not added sometimes in TIG welding, welded base metal is directly connected after being heated and melted, and the filling welding wires are added sometimes; 4, welding treatment is carried out; and 5, welding quality detection is carried out, and flaw detection is carried out on the welded pipeline through an ultrasonic flaw detector.

The invention provides a test unit for improving WAT test precision and a test method thereof, and the test unit for improving WAT test precision comprises an MOS transistor region which comprises N MOS transistors with the same feature size; the metal region is positioned above the MOS transistor region; and the interconnection metal wire is used for connecting the MOS transistors with the metal region, so that the N MOS transistors are connected in parallel. Under the condition that existing testing hardware is not changed, the problem that precision is insufficient when a testing machine and a needle card test the leakage current of the MOS transistor can be effectively solved, so that the leakage current of the MOS transistor can be accurately and efficiently tested; the testing process is convenient and simple, the testing cost can be reduced, and application and popularization of the method are facilitated; according to the invention, a small-size MOS transistor is tested, so that the performance of the MOS transistor can be known, and a solution is provided in subsequent chip design, so that chip integration is facilitated.

The invention discloses a negative oxygen ion detection method and device, and relates to the field of negative oxygen ion detection. The negative oxygen ion detection device comprises negative oxygenion detection equipment, the negative oxygen ion detection equipment is communicated with a negative oxygen ion generation chamber, and the negative oxygen ion generation chamber is communicated withan air filtering device. Compared with the prior art, the invention has the beneficial effects that the negative oxygen ion detection device is simple in structure and convenient to use, the negativeoxygen ion detection environment is filtered through the air filtering device in the using process, impurities such as dust are not contained in the negative oxygen ion detection environment, the negative oxygen ion detection accuracy is greatly improved, detection is more accurate, and the practicability is high; therefore, the performance of the negative oxygen ion generating device is better understood, and the device is worth popularizing.

The invention discloses an intelligent residential area door control system. The system comprises a data monitoring module, a door control management module, a database, a cloud service platform, a warning module, a regulation management module and an intelligent terminal; the system can monitor temperature data, humidity data and gas content data of internal environment of equipment in the systemand door control video monitoring data and operating data, can perform real-time monitoring for the equipment in the system, can provide comparison material for the monitoring data, and can quickly discover problems happened in the equipment or the system, deal with the problems and warn an administrator and regulate the equipment in the system; by arrangement of the intelligent terminal, the administrator can master various information in the system, can extract long-term data of the equipment in the system to perform analysis, can deepen usage performance of the system and can provide databasis for system improvement; and the invention also provides a usage method of the intelligent residential area door control system, which is convenient and efficient to operate and convenient to generalize.

The invention discloses an Internet platform, which is characterized by comprising a consumer module, a commodity service party module, a commodity module and a commodity certification document module. The consumer module includes information related to the consumer; the commodity service side module comprises information related to the commodity service side; the commodity module comprises information related to the commodity; the merchandise certification document module contains information about the merchandise certification document used to certify the conformity of the merchandise. The patent also discloses a shopping system including the Internet platform, the commodity server terminal and the consumer terminal.

The invention discloses a whole-pack storage battery tester with a patrol function. The whole-pack storage battery tester comprises a first detection box, a second detection box, a third detection boxand a test box; a supporting frame is fixedly connected to the bottom of an inner cavity of the test box; the top of the supporting frame is fixedly connected with the bottoms of the first detectionbox, the second detection box and the third detection box in sequence from left to right; and a motor box is fixedly connected to the left side of the top of the inner cavity of the test box. The invention relates to the technical field of whole-pack storage battery testers. According to the whole-pack storage battery tester with the patrol function, cruise type detection is carried out in equipment; different numerical values can be directly measured; debugging equipment is not needed; testing is simple and rapid; and the problems that the testing efficiency is influenced, a great challenge is brought to novices and work cannot be carried out as soon as possible because the equipment needs to be debugged in a process of measuring other numerical values in an existing storage battery tester are solved.

The invention discloses a packaging container pump head detection device with an electrostatic dust collection function. The device comprises a device shell; two electrostatic dust collection devicesare symmetrically arranged at the left end and the right end of the device shell; four flow guiding devices are symmetrically arranged in the device shell; two fixing clamping plates are symmetricallyarranged on the front sides and the rear sides of the four flow guiding devices in the device shell; and a collecting box is arranged in the device shell and located in front of the four flow guidingdevices. According to the packaging container pump head detection device with the electrostatic dust collection function, a storage box is arranged in the device shell, so that a storage space can beconveniently provided for liquid for detecting a pump-out amount; the flow guide devices are adopted, a pump head needing to be detected can be conveniently connected with the liquid in the storage box; the fixing clamping plates are adopted, and therefore, the flow guide devices can be fixed conveniently, and meanwhile the flow guide devices can be replaced conveniently; and the collecting box and a weighing device are adopted, the pump-out amount can be conveniently counted.

The invention provides a gas water heater display control method and device, a gas water heater and a storage medium. The gas water heater display control method comprises the steps that operation efficiency parameters of the gas water heater are obtained; and the operation efficiency parameters are displayed. According to the technical scheme, a user can accurately know the operation state of thegas water heater in time, and therefore the user can conveniently and reasonably set and adjust the gas water heater.