188results about How to "Little influence from external factors" patented technology

The invention discloses a full-automatic chemiluminiscence tester and belongs to the field of chemiluminiscence testing.The full-automatic chemiluminiscence tester comprises a mechanical arm module, a refrigeration module, a power module, a reagent sample disk, a sampling needle component, a stirring component, a reaction cup frame, an incubation device, a magnetic separation component, a washing station component and a measuring room.Full-automatic management is achieved for mixing, reacting, incubating, magnetic separating, detecting and other procedures of a sample to be tested, the detection efficiency is improved, and operation errors are reduced.

The invention relates to a method for grading and utilizing waste material of sandstone system production, including the following steps: 1) sieving and washing are carried out; 2) slurry obtained by sieving is subject to separation of fine sand powder and slurry by virtue of a hydrocyclone grading device; 3) the fine sand powder is subject to high frequency sieving and dewatering, and the slurry is placed into a setting device, so as to further separate water and concentrated slurry; 4) water is returned to the washing step, and the concentrated slurry is subject to filter pressing or filtering and then is delivered to a waste material stock yard. In the method for grading and utilizing waste material of sandstone system production provided by the invention, a hydrocyclone grading device is added in slurry sand grading production process to separate fine sand powder and slurry, and a high frequency sieving dewater procedure is adopted, recycling of fine sand powder from slurry is realized, by adopting the method of the invention, more than 90% of useful material can be recycled from slurry, and more than 70% of recycling can be realized after waste water is purified.

The invention discloses a pipe jacking pipe joint retaining device, which comprises a machine frame, wherein the machine frame is arranged between a back jacking jack and a pipe joint to be jacked; first connecting elements are respectively arranged at two sides of the pipe joint to be jacked; the machine frame is provided with a reaction frame at each of two sides of the pipe joint to be jacked; and second connecting elements corresponding to the first connecting elements are arranged on the reaction frames. The pipe jacking pipe joint retaining device has the advantages that before the pipe jacking stopping and back jacking jack retraction, the backward retreating of a pipe jacking machine head and the pipe joint in a passage after the back jacking jack retraction is prevented by a reaction system of the reaction frames through the mutual connection coordination of the first connecting elements arranged at the two sides of the pipe joint and the second connecting elements arranged on the reaction frames. The defects of the pipe jacking pipe joint releasing construction are overcome; the backward retreating phenomenon of the pipe jacking machine head and the pipe joint after the main jacking jack retraction in the pipe jacking construction is reasonably and effectively controlled; and the stability of a pipe jacking front side soil body and the safety of a pipeline and a front soil body are ensured.

The invention relates to the field of information teaching, and discloses an attention judgment method, device and system, equipment and a storage medium. The method comprises the steps of obtaining avideo image of a target person, identifying a face image of a single frame image in the video image, and determining a first pupil sight line vector; Converting the first pupil sight vector into a second pupil sight vector under a world coordinate system, and calculating an intersection coordinate between the second pupil sight vector and a preset plane; Judging the position relation between theintersection coordinates and a preset area, and confirming whether the target sight line is deviated or not; And after all frames of images contained in the video image within the preset time are identified, determining the total number of times of sight line deviation, comparing the total number of times of sight line deviation with the preset number of times of deviation, and determining the attention state of the target person. According to the attention judgment method provided by the embodiment of the invention, the sight line direction vector is projected to the preset plane, the attention state of the target person is judged, and the method has the advantages of high real-time performance, high accuracy, high reliability and small influence of external factors.

The invention discloses a large-scale server cabinet high in thermal diffusivity and space utilization rate. The large-scale server cabinet comprises separator plates, telescopic plates and sleeve plates arranged on a cabinet body. The server cabinet body is in the form of a rectangular box body; the number of the separator plates is two; the middle positions of the upper and lower ends of the separator plates are both fixedly provided with sliding blocks which are in the shape of T; the sliding blocks are arranged in slide chutes; the both side surfaces of the server cabinet body are provided with heat radiating holes; the separator plates inside the server cabinet body are provided with air vents; and fan blades are arranged in the air vents. The inside of the server cabinet body is well ventilated and has good heat dissipation. Heat accumulation inside the server cabinet is not easy, so that the phenomenon that the running speed of a server decreases due to overheating will not occur. The service life of the server is relatively long, and that the phenomena of heat dissipation performance degradation and decrease in the running speed of the server will not occur. The server cabinet is convenient to clean. The server is little influenced by the external factors. The server cabinet is suitable for popularization.

The invention discloses a bridge deflection detection method based on automatic zooming real-time image processing. Firstly, a rectangular target is fixed at a certain fixed position on a bridge, andthe position of a camera is regulated to image the target at the center of an image. The camera accesses an embedded processor, image information of the target is processed to obtain a position of a center point of the target, and coordinates of the position are used as reference values. Along with changes of a deflection of the bridge and a distance from the target to the camera, the size and thecenter position of the target appearing on an optical screen are changed; the target occupies most of position in the image by an automatic zooming technology; then a relative reference displacementof the center point of the target is obtained and a deflection variation is calculated. The bridge deflection detection method is convenient and simple to operate, adopts light and small hardware, isaccurate to measure and can implement real-time measurement.

Disclosed are a method for preparing and virus type definition test paper for foot and mouth disease and the using method. The test paper comprises O, A, Asia l, C four kinds of serum detecting test paper. The test paper comprises a PVC substrate plate, nitrocellulose membrane, an absorbing pad, a golden mark pad and a sample pad. The PVC substrate plate is installed at the most bottom layer; the nitrocellulose membrane is set on the middle part of the substrate plate; the absorbing pad is stuck on the left end of the nitrocellulose membrane, and the golden mark pad is set on the right end of the nitrocellulose membrane; the sample pad is set on the right upper end of the golden pad. The invention can identify the foot and mouth virus O, A, Asia l and C four serum type.

The invention relates to a control method and controller of hybrid energy storage, belonging to the field of a wind and light supplementary power generation technology. The technical scheme is as follows: current and voltage signals of a super capacitor (4), a storage battery (9) and a load (7) are collected by a main controller (1) through a voltage and current sampling circuit (2) of the super capacitor, the voltage and current sampling circuit (3) of the storage battery and the voltage and current sampling circuit (6) of the load, respectively; after the current and voltage signals are processed by the main controller, a bidirectional DC/DC (Direct Current/Direct Current) converter (8) is controlled through a driving circuit (5), so that the power generation work and the energy storage work of the super capacitor, the storage battery and the load are at the maximum power point. The control method and the controller of the hybrid energy storage, provided by the invention, have the advantages that: the storage battery is at an optimized charging/discharging working state all the time and is hardly influenced by external factors, working conditions of the storage battery are improved, and the charging/discharging time of the storage battery is reduced, so that the service life of the storage battery is prolonged, and the stability and the whole conversion efficiency of a wind and light supplementary power generation and energy storage system are improved.

The invention discloses an implicit damage monitoring and thermal runaway early warning device for vehicle-borne lithium-ion power batteries. The device comprises a carbon dioxide and ethylene combined gas sensor which is arranged in a battery pack module and is used for detecting the concentration of carbon dioxide and ethylene gases, a pressure sensor which is disposed at an indentation type pressure relief valve of a battery case and is used for detecting an internal pressure of battery bodies, a perfusion pipeline which is disposed in the battery pack module and is uniformly provided withfoam holes for discharging flame-retardant foams, multiple solenoid valves which are disposed at the corresponding foam holes, a flame-retardant foam storage tank which is disposed outside the batteries and is in communication with the perfusion pipeline, and a controller which is connected to the carbon dioxide and ethylene combined gas sensor, the pressure sensor and the solenoid valves and areused for controlling the operation of the solenoid valves. The invention also discloses an early warning method of the implicit damage monitoring and thermal runaway early warning device for the vehicle-borne lithium-ion power batteries.

The invention discloses a vertical multiple-degrees-of-freedom high-precision detector for detecting the comprehensive performance of precision reducers. The detector comprises a high-speed end torque closed module, an attitude adjustment module, and a low-speed end torque closed module. The low-speed end torque closed module includes a vertically arranged low-speed end torque closed cylinder. A loading motor, a force-increasing reducer, a low-speed end torque sensor, a low-speed end circular grating and a reducer output shaft interface are arranged in sequence from bottom to top inside the low-speed end torque closed cylinder. The high-speed end torque closed module includes a vertically arranged high-speed end torque closed cylinder. A high-speed end torque sensor, a high-speed end circular grating and a reducer input shaft interface are arranged in sequence from top to bottom inside the high-speed end torque closed cylinder. The shell of a driving motor and the shell of a detected reducer are connected together by the high-speed end torque closed cylinder. The shell of the loading motor and the shell of the detected reducer are connected together by the low-speed end torque closed cylinder. The detector is less affected by external factors, and is of high measurement precision.

A vertical integrated public hand sterilization intelligent terminal comprises a supporting mechanism and a hand sterilizer; the hand sterilizer comprises a shell, and a sterilizing liquid spraying module and a liquid level detection module arranged in the shell; the sterilizing liquid spraying module includes a sterilizing liquid storage tank, a peristaltic pump, an atomizing nozzle and a sensing probe; the input end of the peristaltic pump is connected with the sterilizing liquid storage tank, the output end of the peristaltic pump is connected with the atomizing nozzle, the atomizing nozzle is arranged in a sterilizing window, the sensing probe is also arranged in the sterilizing window, and the sensing probe is connected with the peristaltic pump; the liquid level detection module includes a detection unit, a counting unit, a calculating unit, and an output unit which are connected in sequence. By employing the automatic detection technology, the vertical integrated public hand sterilization intelligent terminal calculates residue of the sterilizing liquid accurately in real time via analog calculation mode, the residue of the sterilizing liquid can be reflected accurately; the liquid level detection module is integrated into a functional chip, takes less space after being mounted and bears little influence by external factors.

The invention discloses a method for testing wettability of electronic-grade glass fiber cloth. The method comprises the following steps of: (1) preparing a mixed reagent, wherein the mixed reagent comprises the following components 60-99wt% of mixed solvent, 1-40wt% of indicating agent and 0-30wt% of auxiliary; (2) selecting the electronic-grade glass fiber cloth with qualified wettability, dripping a rated amount of mixed reagent in the step (1) at an appointed height on the surface of the electronic-grade glass fiber cloth, starting timing, measuring the dispersion length of the mixed reagent along a warp direction and a weft direction within unit time, recording, and taking the dispersion length as standard data; (3) selecting the electronic-grade glass fiber cloth to be tested, and testing the electronic-grade glass fiber cloth by the same method in the step (2) to obtain test data; and (4) comparing the test data with the standard data, so as to judge whether the wettability of the electronic-grade glass fiber cloth to be tested is normal. According to the test method, a test requirement for quick and continuous detection is met; and the test method is suitable for working occasions in which the wettability of a large amount of glass fiber cloth can be tested quickly and accurately.

The invention provides a relative position measurement method through radio positioning and a measurement device thereof. The measurement device comprises a transmitting unit, receiving units and a signal processing unit. Receiving signals of each receiving unit are extracted by recording the position of each receiving unit, the distance between all the receiving units and the distance between each receiving unit and the transmitting unit under the initial state so as to solve phase information. The position of the transmitting unit relative to a platform can be solved according to the space quadrilateral geometric relation of the receiving units and the transmitting unit. The phase ambiguity problem is solved, and measurement of the direction and the relative position of moving points can be realized through transmitting signals of single frequency so that the system is easy to realize, high in reliability and low in influence of external factors and can control the moving distance and the position of the moving nodes in real time and can be widely applied to the system requiring long-term monitoring and early warning.

The invention discloses an incubation and magnetic separation device applied to chemiluminescence determination and belongs to the field of chemical luminescence determination. The incubation and magnetic separation device applied to the chemiluminescence determination comprises an incubation device and a magnetic separation device, wherein the magnetic separation device is arranged at one side of the incubation device, so that a magnet on a magnet frame corresponds to a bottom side face of a reaction cup on a reaction cup hole. The incubation magnetic separation device integrates an incubation function and a magnetic separation function; a temperature range and magnetic selection time are accurate and adjustable; the device is stable in properties and simple to operate. The incubation device adopts contact type direct heating and has a good incubation effect; the magnetic separation device has the advantages of good buffering effect and reduction of loss of magnetic beads and the like.

The invention discloses a horizontal high-precision detector for comprehensive performances of a precision speed reduction device. The horizontal high-precision detector comprises a high-speed end moment closed module, a positioning adjusting module and a low-speed end moment closed module, wherein the low-speed end moment closed module comprises a horizontally arranged low-speed end moment closed cylinder; a supporting leg is arranged at the bottom of the low-speed end moment closed cylinder; a loading motor, a reinforcement speed reducer, a low-speed end torque sensor, a low-speed end circular grating and a speed reducer output shaft transform interface are arranged in the low-speed end moment closed cylinder from the right part to the left part in sequence; the high-speed end moment closed module comprises a horizontally arranged high-speed end moment closed cylinder; a high-speed end torque sensor, a high-speed end circular grating and a speed reducer input shaft transform interface are arranged in the high-speed end moment closed cylinder from the left part to the right part in sequence; the high-speed end moment closed cylinder and the low-speed end moment closed cylinder are coaxially arranged and are connected with each other through a tested sensor. The horizontal high-precision detector is little affected by external factors and high in measurement precision.

The invention discloses an inspection method of the detection accuracy of an open type animal breathing calorimetric system. The inspection method comprises the following steps of: accurately weighing a certain molar quantity of chemical reagents, and placing into a breathing calorimetric chamber of the open type animal breathing calorimetric system to be inspected; respectively preparing quantitative oxygen, methane and carbon dioxide gases through a chemical reaction method to simulate an animal breathing experiment; and comparing gas recovery values and theoretical values which are actually detected by the open type animal breathing calorimetric system to determine the detection accuracy of the open type animal breathing calorimetric system. The invention has the advantages of quantitatively preparing the gases by adopting the chemical reaction method, being controllable in experimental speed, rarely influenced by external factors, high in accuracy, simple and reliable in method and high in repeatability and fast evaluating the accuracy of a detection result of the open type animal breathing calorimetric system.

The invention discloses a casting blank cutting positioning method and a system. The method comprises the steps of: receiving a drawing roller rotating signal of a withdrawal and straightening machine; determining an operation length of a casting blank according to the drawing roller rotating signal; generating and sending a head blank cutting command to a cutting device so as to control the cutting device to perform the head blank cutting for the casting blank when the operation length is equal to a sum of a basic length and a preset head blank length, wherein the basic length is a distance from a liquid level of a crystallizer to an original position of a cutting car; zeroing the operation length; and generating and sending a cutting command to the cutting device so as to control the cutting device to perform the finished-product cutting for the casting blank when the operation length reaches a preset finished-product cutting length. The casting blank cutting positioning method and system, provided by the invention, are used for solving the technical problems of low precision and high equipment maintenance cost in a casting blank cutting positioning method of the prior art, and realize the technical effects of improving the cutting positioning precision and reducing the equipment maintenance cost.