31results about How to "Not easily affected by external factors" patented technology

The invention discloses a corona voltage-sharing device, and relates to a multi-gap series gas spark switch adopting the same. The corona voltage-sharing device comprises an intermediate electrode (1), a corona pin support (2) and a corona pin (3), wherein the corona pin support (2) is assembled at the center of the intermediate electrode (1), and the corona pin (3) is installed on the corona pin support (2). The multi-gap series gas spark switch comprises a positive polarity high-voltage electrode (4), a trigger lead-in interface (5), an insulation gas lead-in interface (6), a switch insulator (7), a negative polarity high-voltage electrode (8) and a voltage-sharing device, wherein the voltage-sharing device is the corona voltage-sharing device, and the corona pin (3) is also arranged at the center of the negative polarity high-voltage electrode (8). The corona voltage-sharing device also can be used for equipment, such as the high voltage is needed to be shared, and a voltage-sharing resistor or a voltage-sharing ring is not easy to be led in the equipment. The invention has the advantages of small volume, simple structure, safety, reliability and long service life.

The invention discloses a device for detecting a working state of a current collector, which is used for solving the problem of low reliability of the device for detecting the working state of the current collector in the prior art. The device comprises a position trigger mechanism and a position indicator, wherein the position indicator is arranged on the inner side of a current collector main body, the position trigger mechanism is arranged on a lock mechanism of the current collector, the lock mechanism is arranged between an isolation cylinder and an unlocking cylinder and is connected with an isolation cylinder shaft, when the isolation cylinder of the current collector drives the lock mechanism to move to an isolation position, the position trigger mechanism moves to a position which is in the same horizontal plane with the position indicator and presses a small wheel disk of the position indicator by following the lock mechanism, and when the lock mechanism moves to an unlocking position under the pushing action of the unlocking cylinder shaft, the isolation cylinder of the current collector axially moves to drive the lock mechanism to move, and the position trigger mechanism follows the lock mechanism to move to a position which is separated from the small wheel disk of the position indicator. According to the device, the reliability of a detection result of the working state of the current collector is improved.

The invention discloses a five-degree-of-freedom magnetic levitation electric spindle rotor displacement self-detection system and method. The system is composed of a fuzzy support vector machine displacement prediction module, two linear closed-loop controllers and two force / current converters. The fuzzy support vector machine displacement prediction module is composed of four fuzzy support vector machine radial displacement prediction modules and a fuzzy support vector machine axial displacement prediction module. Each of the radial displacement prediction module and the axial displacement prediction module is composed of a training sample set module, a data preprocessing module, a fuzzy data module, an optimal performance parameter determination module and a fuzzy support vector machinetraining module. The fuzzification data module fuzzifies the training sample set by using a fuzzy membership function; the optimal performance parameter determination module optimizes a penalty parameter and a kernel width by using a simplified particle swarm optimization algorithm, and obtains a group of penalty parameter and kernel width with the best performance index; and the system structureis simplified, and the control performance of the magnetic bearing is improved.

The invention discloses a white blood cell filtration monitoring system, which comprises a frame, a parent bag suspension device, a sub-bag accommodation device, a weight measurement device, a weight information processing device, an alarm device, a blood bag information collection device, and a data transmission device. It is "U" shape; the main bag suspension device is arranged on the upper part of the frame, the sub-bag accommodation device includes a sub-bag accommodation chamber, and the sub-bag accommodation chamber is arranged at the lower part of the white blood cell filtering device, the The weight measuring device is arranged under the sub-bag containing device; the alarm device is connected with the weight information processing device. The filter monitoring device has a simple structure and low cost, and is convenient for staff to carry out related operations in a relatively closed space in the frame without being easily affected by external factors, thereby improving work efficiency and accuracy.

The invention provides observation elevator heat-insulating glass and a preparation method thereof. The observation elevator heat-insulating glass is prepared from the following raw materials in parts by weight: 6 to 25 parts of nano-powder, 20 to 35 parts of high-molecular resin, 6 to 16 parts of polymethyl methacrylate, 1 to 3 parts of boric acid, 20 to 30 parts of magnesium stearate, 1 to 2 parts of selenium, 3 to 5 parts of calcium chloride, 15 to 20 parts of glycerinum, 8 to 15 parts of sodium tripolyphosphate and 20 to 30 parts of polyvinyl alcohol. The heat-insulating glass prepared from the raw materials has high heat-insulating performance, the internal temperature and external temperature of an elevator can be insulated to a great extent, and the elevator is insusceptible to external factors at a high level, so that the experience effect of observation is improved; meanwhile, the heat-insulating glass provided by the invention has high weather resistance, high acid and alkali corrosion resistance, high hardness and high security, and is suitable for a high-level observation elevator.

The invention discloses a three-degree-of-freedom six-pole hybrid magnetic bearing rotor displacement self-detection system and method. The three-degree-of-freedom six-pole hybrid magnetic bearing rotor displacement self-detection system is composed of a fuzzy support vector machine displacement prediction module, a linear closed-loop controller and a force / current conversion module which are sequentially connected in series at the output end and the input end of a composite controlled object; each of two fuzzy support vector machine radial displacement prediction modules and a fuzzy support vector machine axial displacement prediction module is composed of a training sample set module, a data preprocessing module, a fuzzy data module, an optimal performance parameter determination moduleand a fuzzy support vector machine module, wherein the fuzzy data module assigns different membership values to samples with different importance degrees; the fuzzy membership values are calculated byadopting a kernel fuzzy clustering algorithm; the optimal penalty parameter and the core width are determined by the optimal performance parameter determination module by adopting a simplified particle swarm optimization algorithm; and a fuzzy support vector machine training module calculates the predicted displacement, the axial dimension of the magnetic bearing is reduced, and the dynamic performance of the system is improved.

The invention discloses a gravity sensing tilt power-disconnection switch capable of precisely disconnecting power. The gravity sensing tilt power-disconnection switch includes a box body and a box cover fixed on the box body through screws; a ball body is arranged inside the box body; the inner wall of the box body is provided with a pressure-sensing sensor which is matched with the ball body; the pressure-sensing sensor is connected with a power-disconnection device which is arranged at the upper end of the box body through a data line; two sides of the upper end of the box body are respectively provided with a mounting frame; the middle of the box cover is provided with an accommodating stabilizing groove which is matched with the ball body; and the inner side of the box cover is provided with a conical slope. The gravity sensing tilt power-disconnection switch is advantageous in simple structure and precise power disconnection. The gravity sensing tilt power-disconnection switch can be mounted at any position, when an electric appliance tilts to a dangerous angle, signals can be transferred to the power-disconnection device through the pressure-sensing sensor, such that a power source can be cut off timely, and therefore, a service life can be prolonged, and electricity usage safety of people can be ensured.

The invention relates to a simple breathing machine and a breathing mask thereof. The simple breathing machine comprises a base, a storage battery pack, a shell and a control box, wherein the base isequipped with an external power line; the storage battery pack is fixedly mounted in the base and is connected with the external power line; the shell is fixedly mounted on the base; the control box is arranged on the shell; a fixing device is arranged at the bottom of the base; the storage battery pack is connected with a motor in the shell through the control box; an output end of the motor is connected with a simple breathing device; the simple breathing device is connected with an oxygen supply pipeline. The simple breathing machine has a simple structure, is convenient to operate, is capable of saving the cost of the patient or the patient families and can be widely popularized in common patients; the product wholly occupies less area, is in small volume, is more flexible, does not occupy excessive space, is energy-saving and environment-friendly, is long in service life and is difficult to be in fault; the stable supply of air flow can be realized.

The invention relates to a tracing quantum dot water injection cross-section logging method, and mainly aims at providing a novel water injection well cross-section logging method which is accurate in measurement. The method comprises following steps of preparing different spherical transparent quantum dot carriers with different sizes; placing the prepared carriers into a wellhead releasing device of a water injection well to be radiated by laser; releasing the spherical transparent quantum dot carriers, and facilitating the spherical transparent quantum dot carriers to form suspension liquid with liquid inside the water injection well; utilizing an optical imaging technology to detect the dynamic distribution of the spherical transparent quantum dot carriers in the well, and transmitting the detected dynamic distribution image back to a ground computer; and obtaining light density distribution of different frequencies according to the detected image so as to calculate a porosity and relative water injection quantity of the water injection cross section. By analyzing the detected light density distribution of different frequencies, the porosity and the relative water injection quantity of the water injection cross section can be obtained; and meanwhile, the dynamic situation of the water injection can be controlled according to the distribution of the quantum dot carriers with different sizes in the well so as to obtain the cross-section logging data.

The invention discloses efficient elevator guide rail mounting precision calibration equipment, and belongs to the technical field of elevator guide rail mounting calibration. The invention discloses efficient elevator guide rail mounting precision calibration equipment which comprises a guide rail body. The guide rail bodies are calibrated through the first lower supporting plate and the second lower supporting plate which are fixedly locked on the guide rail body at the bottommost end, so that the guide rail bodies are in a vertical state in an elevator shaft, and then the first upper supporting plate and the second upper supporting plate are clamped above the first lower supporting plate and the second lower supporting plate in a limiting manner and are calibrated; the first upper supporting plate and the second upper supporting plate move upwards along the guide rail bodies, whether other guide rail bodies connected based on the guide rail body at the bottommost end are inclined and staggered or not is judged by monitoring display points, on the display plate, of laser emitted by the laser emitter, the guide rail bodies are adjusted and calibrated in time, errors of the calibration mode are small, and the calibration accuracy is high. And the device is particularly suitable for calibrating the elevator guide rail with higher height and is not easily influenced by external factors.

The invention relates to an AD switching circuit. According to the AD switching circuit, an AD7606 chip is used for replacing an operational amplifier circuit and a MAX1320ECM. An analog signal needing to be switched is subjected to two-stage RC filtering and then is connected into eight paths of analog input pins of the AD7606 chip, eight paths of the analog signal are synchronously converted into a digital signal with the 16-bit resolution ratio through the chip, and then the 16-bit digital signal is connected into an FPGA. The AD7606 chip is provided with an input buffer with a 1M omega input impedor and a second-order anti-aliasing analog filter, an analog input clamp protection function is achieved, a 16-bit digital output port is formed, and the AD switching resolution ratio is improved.

The invention discloses a moisturizing, anti-inflammatory and anti-wrinkle composition containing ceramide and its preparation method and application. The composition is composed of isomerized sugar, phosphatidylcholine, ceramide, phytosterol, sodium stearyl glutamate, butanediol and water; the phosphatidylcholine and ceramide form a sphingomyelin-like structure. The preparation method comprises the following steps: 1) preparing a mixed solution of isomerized sugar, sodium stearyl glutamate and butanediol; 2) preparing a liquid mixture of phosphatidylcholine, ceramide and phytosterol; 3) step 1 ) of the mixed solution and step 2) of the liquid mixture of homogenization, micro-fluidic treatment and filtration. The composition of the present invention has excellent moisturizing, anti-inflammation and anti-wrinkle effects, and is easy to absorb through the membrane. When added to transparent water-based cosmetics, it has a transparent appearance, long-term stability, no delamination and turbidity, and its preparation process is simple and can be used on a large scale. Production.

The invention relates to a method and a system for simulating noise of engines of electric and hybrid vehicles. The method is characterized in that buzzer sound production circuits are additionally arranged on the electric vehicles and are connected into electric control systems, and CAN (controller area network) signals are sampled and acquired in real time by the aid of instruments and / or center control MCU (microprogrammed control units) after the electric vehicles are started, so that current electric vehicle state and vehicle speed signals in the CAN signals can be acquired, whether sound production conditions of the buzzer sound production circuits are met by the inputted vehicle state and vehicle speed signals or not can be judged by the instruments and / or the center control MCU, control signals can be computed and outputted to enable the buzzer sound production circuits by the instruments and / or the center control MCU if the sound production conditions are met, and sound can be outputted by buzzers; the buzzer sound production circuits can be switched off by the instruments and / or the center control MCU if the sound production conditions are not met. The method and the system have the advantages that the method and the system are easy to implement and low in cost and are stable and reliable, pedestrians can be effectively reminded of safety, and the electric vehicles can have driving assisting and safety reminding functions.

The invention discloses a device for detecting a working state of a current collector, which is used for solving the problem of low reliability of the device for detecting the working state of the current collector in the prior art. The device comprises a position trigger mechanism and a position indicator, wherein the position indicator is arranged on the inner side of a current collector main body, the position trigger mechanism is arranged on a lock mechanism of the current collector, the lock mechanism is arranged between an isolation cylinder and an unlocking cylinder and is connected with an isolation cylinder shaft, when the isolation cylinder of the current collector drives the lock mechanism to move to an isolation position, the position trigger mechanism moves to a position which is in the same horizontal plane with the position indicator and presses a small wheel disk of the position indicator by following the lock mechanism, and when the lock mechanism moves to an unlocking position under the pushing action of the unlocking cylinder shaft, the isolation cylinder of the current collector axially moves to drive the lock mechanism to move, and the position trigger mechanism follows the lock mechanism to move to a position which is separated from the small wheel disk of the position indicator. According to the device, the reliability of a detection result of the working state of the current collector is improved.

The invention provides a measuring method and device for creative personality traits based on an electroencephalogram signal. The measuring method includes the steps of segmenting vocabulary of a natural language material, and obtaining the occurrence probability of each segmented vocabulary in the context of a text; obtaining an electroencephalogram signal of a subject when hearing the audio of the natural language material, segmenting the electroencephalogram signal, and obtaining a corresponding electroencephalogram response segment of each vocabulary; obtaining an impact response functionof the occurrence probability according to the occurrence probability of each vocabulary and the corresponding electroencephalogram response segment of each vocabulary; and obtaining the test score ofthe personality traits of the subject based on a pre-trained creativity personality traits prediction model according to the impact response function. According to the measuring method and device, automatic measurement of the creative personality traits is achieved, effects of external factors are not prone to appearing, and measurement is more accurate.

The invention discloses an FPGA based intelligent granary monitoring system which comprises a ZigBee networking communication module, a solar panel, a power supply voltage stabilizing module, an FPGA controller, a wifi module, a PC terminal, an air temperature and humidity sensor, a grain stack temperature and humidity transmitter, a smog sensor, a CO2 concentration sensor, a combustible gas sensor, an infrared pyroelectric sensor and a flame sensor. Output of the solar panel is connected with input of the power supply voltage stabilizing module; the output end of the power supply voltage stabilizing module is connected with the power supply input end of an FPGA controller; the FPGA controller is connected with a ZigBee coordinator and the wifi module; the wifi module is connected the PC terminal; and the output end of an FPGA is successively connected with an exhaust fan device, a liquid crystal electronic screen, an axial flow blower fan, an alarm module, a voice module and a monitoring module. Thus, a granary manager can accurately and timely obtain granary information and makes automatic adjustment needless of reaching the site, the monitoring safety is high, the accuracy is high, and the application range is wide.

The invention relates to the technical field of molecular biology, and particularly discloses a real-time fluorescent quantitative PCR (polymerase chain reaction) detection primer and method for streptococcus equi subsp. Zooepidemicus and application. The nucleotide sequence of the real-time fluorescent quantitative PCR detection primer for streptococcus equi subsp. Zooepidemicus disclosed by the invention is as shown in SEQ ID No.1-2. The primer is used for performing fluorescent quantitative PCR detection on streptococcus equi subsp. Zooepidemicus, is good in specificity, relatively high in sensitivity, low in cost and rapid, and can be used for detecting a large number of samples.

The invention relates to an anti-tumor nano-preparation of diester alginate and its preparation method. The specific mass composition is as follows: the mass ratio of diester sodium alginate to polyvinylpyrrolidone is 2‒5:1; the content of sodium diester alginate is 15 ‒50%; doxorubicin hydrochloride and celecoxib content 40‒80%; the rest is water; intrinsic viscosity of diester sodium alginate is 9.0‒14.0, organic sulfur content is 9.0‒13.0%; doxorubicin hydrochloride The mass ratio to celecoxib is 1 / 10–1 / 2. The present invention utilizes the surface activity and crystal inhibitory properties of diester sodium alginate, and uses it as a stabilizer to prepare nano-preparations of hydrophobic or amphiphilic antitumor drugs, so as to improve the solubility of drugs and increase the bioavailability of drugs , enhance the curative effect of the drug, reduce the toxic and side effects of the drug, and then be better used in the clinical application of tumor treatment. The invention can significantly inhibit the growth and metastasis of tumors in vivo and in vitro, and provides a scientific basis for the application and development of the sodium alginate diester in new dosage forms of antitumor drugs and the like.