37results about How to "The influence of external environmental factors is small" patented technology

The invention relates to a noncontact optical volume measurement method for complex-surface and irregular objects. The method is based on the volume measuring technology of image processing. The method comprises the steps of camera calibration, image acquisition, image preprocessing carried out through filtering to remove interference information in an image, image binarization processing, image pixel and graphic height calculation, object base area calculation, and volume calculation. The problem that measurement of the volume of an object requires contact with the object currently is solved, the problems such as the need for three-dimensional image reconstruction and object three-dimensional data point generation and long measuring time in the process from image processing to volume calculation are solved, and the problem that computed tomography (CT) scanning and laser scanning equipment and other testing equipment are expensive is solved. By using the device to measure the volume of a complex-surface object, the advantages of high measuring speed, high precision and convenient operation can be achieved.

The invention relates to a circuit breaker contact temperature-rise detection method based on GIS casing body temperature measurement. The method comprises the steps that 1) the ambient temperature, internal pressure and load current of a GIS circuit breaker under a working condition are acquired; 2) a three-dimensional space multi-physics coupling model of contact heating in the GIS circuit breaker is established to acquire the function relationship between the internal contact temperature rise delta T of the GIS circuit breaker under the current working condition and the maximum temperaturerise delta Tw of a temperature rise sensitive area corresponding to the internal contact on the external surface of the casing body, wherein the function relationship is delta T=f (I0, T0, P0, delta Tw), I0 is the load current, T0 is the ambient temperature and P0 is the internal pressure; 3) the temperature rise distribution of the external surface of the GIS circuit breaker casing body under theworking condition is acquired, and the maximum temperature rise of all temperature rise sensitive areas on the outer surface of the GIS casing body is recorded; and 4) the temperature rise of the internal contact of the GIS circuit breaker is calculated under the working condition is calculated based on the function relationship. Compared with the prior art, the method provided by the invention has the advantages of high accuracy, high security and the like.

An embodiment of the invention provides a method and device for detecting usage of a parking space, electronic equipment, and a storage medium, and is applied to the technical field of intelligent video image monitoring. The method comprises the following steps of acquiring a monitoring image of a parking space to be detected; identifying lane line position information of the parking space to be detected from the monitoring image; identifying vehicle information from the monitoring image, wherein the vehicle information comprises vehicle position information; and determining, according to thepositional relationship between the lane line position information and the vehicle position information, the usage of the parking space to be detected. In the method for detecting usage of the parkingspace provided by the embodiment of the invention, the usage of the parking space to be detected is determined according to the positional relationship between the lane line position information andthe vehicle information. Compared with the method for determining the usage of the parking space according to grayscale information, the method is less affected by external environmental factors and can improve the accuracy of detection results of the usage of parking spaces.

The invention provides a Newcastle disease virus double-antibody sandwich AlphaLISA detection kit and a detection method thereof. The detection kit comprises a receptor microballoon coated with a Newcastle disease virus antibody, a biotin labeled Newcastle disease virus antibody and a donor microballoon coated with streptavidin. The detection method comprises the following steps of: successively adding a standard substance or a to-be-detected sample, the receptor microballoon coated with the Newcastle disease virus antibody and the biotin labeled Newcastle disease virus antibody into a porous plate and performing vibration incubation; adding the donor microballoon coated with streptavidin under a light shielding condition and then performing vibration incubation; and detecting a signal value on a AlphaScreen / Lisa detector. The detection kit provided by the invention has high stability and strong specificity. The influence of outside environment on the detection method is small. The detection method has higher sensitivity and specificity, can meet the requirements of high throughput and quick detection and has high popularization and application value.

The invention discloses a brazing method for porous ceramic and metal. Compacting paint which comprises but not limited to yttrium oxide powder, silicon oxide powder, aluminum oxide powder and nano alpha-Si3N4 particles is uniformly sprayed to a to-be-welded surface of the porous ceramic and is heated to 1400 DEG C-1600 DEG C under the protective atmosphere, and heat preservation is conducted for 30 min-90 min, so that a compacting coating is formed on the sprayed surface; and then vacuum brazing is conducted with corresponding brazing filler metal, and thus better connection between the metal and the porous ceramic can be achieved. The invention aims at providing the vacuum brazing method which can achieve more effective high-strength connection between the porous ceramic and the metal, an obtained brazed joint of the porous ceramic and the metal is good in mechanical property, and the practical application requirement can be met.

The invention relates to an experiment animal model, and discloses a constructing method and application of an ulcerative colitis (UC) animal model. According to the ulcerative colitis animal model, Canis lupus familiaris is used as a model animal, acetic acid is adopted to cause ulcerative colitis of Canis lupus familiaris, and basically, the experiment result can be directly applied and popularized to the human body. The modeling way is easy to operate, the model is stable, easy to repeat and low in cost, and the animal model selection with more druggability evaluations and curative effect evaluations is provided for development and research of drugs for treating UC.

The invention discloses a plant leaf shading device and a chlorophyll fluorescence determination method applying the plant leaf shading device. The shading device comprises a front shading layer which is used for covering the upper surface of a leaf and is provided with an open hole, a rear shading layer which is used for covering the lower surface of the leaf and is connected with the front shading layer, and a movable shading blocking piece which is used for covering the open hole, wherein the front shading layer, the rear shading layer and the movable shading blocking piece are made of a soft light material. The soft light material can be a piece of tin foil paper which is light in weight, low in cost, simple and convenient, can shade effectively, and can be adjusted according to the size of the leaf; the shading area is large; the leaf is not damaged; the plant leaf shading device is suitable for all types of plant leaves. The shading device disclosed by the invention is used for the dark adaptation of the plant leaf in chlorophyll fluorescence determination, is slightly influenced by external environment factors, and is favorable for the stability of data determination; the determination data is relatively close to completely shading conditions.

The invention discloses a mercury ion detection probe based on intramolecular hydrogen bond structural units, and a preparation method and an application thereof, wherein the fluorescent probe has thestructure as the formula (I). With 5-formylsalicylaldehyde being a raw material, firstly a benzothiazole derivative is generated with o-aminobenzenethiol; and then condensation is carried out with barbituric acid. The probe has stable optical performance and is high in detection sensitivity and low in detection limit on the mercury ion, wherein response range is 2-20.0 [mu]M. The probe has greatselectivity and has no response on silver ion, barium ion, calcium ion, lithium ion, sodium ion, potassium ion, magnesium ion, aluminum ion, nickel ion, zinc ion, mercury ion, cobalt ion, lead ion, palladium ion and strontium ion. The fluorescence molecular probe has practical application value in the fields of detection on the mercury ion in biochemistry and environmental chemistry.

The invention discloses a solar energy hot water and boiler waste heat recovery integrated system, which comprises a heat collecting water tank, wherein the heat collecting water tank is provided with a blowdown pipeline and a water supply pipeline. The solar energy hot water and boiler waste heat recovery integrated system is characterized in that the heat collecting water tank is communicated with a solar thermal collector through a circulating pipeline, a backwater pipeline of the solar thermal collector is further provided with a temperature detecting device, the heat collecting water tank is further communicated with a waste heat recovery device through the circulating pipeline, the waste heat recovery device is arranged on a waste gas discharge port of a boiler, a recovery pipeline of the waste heat recovery device is also provided with the temperature detecting device, and is communicated with a water inlet pipeline with the heat collecting water tank, a heat exchange coil is arranged in the heat collecting water tank, the heat exchange coil is communicated with a soft water tank, and the soft water tank is communicated with a boiler inner cavity through the circulating pipeline. The solar energy hot water and boiler waste heat recovery integrated system is simple in structure, ingenious in design and reasonable in layout, and creatively organically combines a solar heating device and a boiler waste heat device into an integrated system.

The invention relates to a coal mining machine monitoring device which comprises a sensor unit, a wireless transmitter and a wireless receiver. The sensor unit and the wireless transmitter are connected with each other and respectively installed on a coal mining machine. The wireless transmitter is connected with the wireless receiver through a wireless network, the wireless receiver is installed on a support controller and connected with the support controller, and the sensor unit is used for obtaining state information of the coal mining machine and sending the state information to the wireless receiver through the wireless transmitter. The wireless receiver receives the state information and sends the state information to the support controller, and the support controller monitors the coal mining machine according to the state information. The state information comprises positional information of the coal mining machine, water pressure of cooling water, cooling water flow and oil pump output pressure. The coal mining machine monitoring device can maintain state information transmission stability and improve coal mining machine monitoring effects.

The invention provides a multifunctional ground water sampling device. The multifunctional ground water sampling device comprises a sampling bottle, a plurality of water quality probes and a data collector, wherein the water quality probes are arranged in the sampling bottle, and are used for detecting and collecting physical indexes of a water sample, converting into electric signals, and transferring to the data collector. The multifunctional ground water sampling device has the advantages that on the basis of the traditional ground water sampling device, the test probes for temperature, dissolved oxygen, redox potential, chlorophyll and pH (potential of hydrogen) are arranged, the data collector is arranged by utilizing a wireless transmission technique, and the water quality probes are improved to perform wireless signal transmission, so as to measure the water quality in the water sample collecting process; the problem of the collected water sample failing to truly reflect the water quality of the water body is solved, and the existing ground water sampling device is further optimized and improved.

The invention discloses a body transverse control method and an electronic control unit (ECU). The ECU comprises a forward millimeter-wave radar, a road boundary recognition module and a body transverse control module, wherein the road boundary recognition module acquires parameters of at least one target object from the forward millimeter-wave radar, a boundary target object is determined from the at least one target objects according to the parameters of the at least one target object, boundary curve parameters and boundary curve quality corresponding to the current moment are determined according to the boundary target object, and the boundary curve parameters and the boundary curve quality corresponding to the current moment are input into the body transverse control module so that the body transverse control module can perform transverse control on a body according to the boundary curve parameters and the boundary curve quality corresponding to the current moment. The ECU performs transverse control on the body based on the parameters of the at least one target object acquired by the forward millimeter-wave radar; and compared with control based on a vision sensor, the influence of external environment factors is small, and it is guaranteed that the transverse control of the body by the ECU is more accurate.

The invention belongs to the technical field of surface roughness detection, and particularly relates to a method for measuring surface roughness based on a wavelet Brownian motion texture fusion model, which comprises the following steps: (1) acquiring a laser speckle image; (2) determining an optimal wavelet basis function; (3) determining an optimal wavelet decomposition layer number; (4) carrying out two-dimensional wavelet decomposition on the obtained laser speckle image; (5) performing modeling analysis by using a wavelet Brownian motion texture fusion method to obtain a mathematical model; and (6) substituting the surface texture characteristic parameters of the to-be-measured workpiece into the mathematical model obtained in the step (5), and calculating to obtain the surface roughness of the to-be-measured workpiece. According to the method, a mathematical model between laser speckle image texture characteristic parameters and characterization surface roughness parameters isestablished by using a wavelet and Brownian motion texture fusion method in the aspects of practice and theory, so that the surface roughness of the to-be-measured workpiece can be measured in an online, rapid and non-contact manner through a single laser speckle image.

The invention discloses a valve leakage monitoring system based on an image processing technology. The valve leakage monitoring system specifically comprises an image acquisition module, an image coding and decoding module, an image processing module, a wireless transmission module and a main monitoring server; the image acquisition module is correspondingly connected to the image processing module through the image coding and decoding module; the image processing module is correspondingly connected to the main monitoring server through the wireless transmission module; the image acquisition module acquires image information at the exit valve position of a freight train; the image coding and decoding module codes and decodes an acquired image; and the image processing module performs image processing operation of a decoded image, judges whether cargo leakage information exists or not, and sends an image including the cargo leakage information to the main monitoring server through the wireless transmission module. The system can identify the cargo leakage information effectively and accurately, and send the cargo leakage information to the main monitoring server in real time; and thus, a server side and related people are convenient to dispose rapidly.

The invention discloses a test device for an automotive air conditioner air outlet assembly. The test device for the automotive air conditioner air outlet assembly comprises a wind supply assembly, aheating box, a detection box and a circulation pipeline. An air inlet is formed in one side of the air supply assembly, and the air inlet is provided with an air blower; an air outlet is formed in theother side of the air supply assembly, the air outlet communicates with a heating box air inlet, a heating box air outlet is formed in the other side of the heating box, and the heating box air outlet communicates with a detection box air inlet; and the detection box is internally provided with a test platform communicating with the detection box air inlet, and the detection box is provided withan openable door panel, a control panel is arranged on one side of the detection box, and the detection box is internally provided with a refrigeration component. The test device for the automotive air conditioner air outlet assembly has complete functions and can perform air outlet test under high temperature, normal temperature and low temperature states, has a good fixing effect on an automotive air conditioner air outlet, and has high adaptability, a stable test environment and good test results.

The invention provides a welding angle regulating device. The welding angle regulating device comprises a base assembly and a lifting assembly, wherein a positioning mechanism and an indicating assembly are arranged on the base assembly and the lifting assembly; the lifting assembly can be used for quickly and precisely regulating height of the positioning mechanism to change an included angle between the positioning mechanism and the horizontal plane; a slide plate mechanism can be arranged on the positioning mechanism in a sliding mode; the slide plate mechanism can independently regulate aslide position according to different welding processes such as butt-joint gap requirements; a positioning plate on the slide plate mechanism provides a positioning element for welding test panel clamping; and the indicating assembly can display a test panel clamping gap and a welding angle in real time, so that a test panel is conveniently regulated, and can be repeatedly utilized. The welding angle regulating device is novel in structure, is flexible, simple and convenient in operation, is small in influences of an external environment factor, can guarantee precise positioning of the test panel and the welding angle, and improves welding quality and efficiency in a welding process.

The invention provides a high-strength paper tray and a preparation technology thereof. The high-strength paper tray comprises a supporting plate and a plurality of corner columns which are uniformly arranged at the bottom of the supporting plate in a matrix manner. The preparation technology of the high-strength paper tray comprises the following steps that the supporting plate is prepared; the corner columns are prepared; corner columns are positioned; trays are mounted; pre-drying is conducted, specifically, the mounted trays are stacked in sequence from bottom to top, and pressure is applied downwards to the top of the uppermost tray; drying and forming are conducted, specifically, the pre-dried trays are fed into drying equipment to finish drying. According to the high-strength paper tray, a supporting layer and an inner supporting plate set in the supporting plate can provide good impact resistance and high supporting strength, protective layers and corner column sleeves can prevent external steam from entering the tray, and the influence of external environment factors on the strength of the tray is low; according to the preparation technology of the high-strength paper tray, used equipment is simple and convenient to operate, operation can be conducted after personnel are simply trained, and the labor cost is low.

The invention relates to a device for measuring a space angle of a large object. The device is used for realizing non-contact perpendicularity measurement with a measured object. The device comprisesa base, and a gyroscope, a camera, keys, a microcomputer, a direct-current power supply and a capacitive touch liquid crystal display which are respectively arranged on the base, wherein the gyroscope, the camera, the keys, the direct-current power supply and the capacitive touch liquid crystal display are respectively connected with the microcomputer; the microcomputer is used for performing image recognition and analysis, performing vector superposition on a deviation angle of the measured object in an image and an inclination angle of the measuring device during image acquisition so as to obtain the final positional value or angle of the tested line; moreover, measurement results are displayed on the capacitive touch liquid crystal display. Compared with the prior art, the device disclosed by the invention has the advantages of wide application range, simplicity in operation, high safety and the like.

The invention relates to the technical field of breather paper performance testing and particularly discloses a method and device for utilizing electric signals to test the performance of breather paper. The method comprises the steps that S1, the transmission delaying time of sound signals produced between a sounder and a receiver is recorded and serves as standard time T1; S2, breather paper isarranged between the sounder and the receiver, the transmission delaying time of the sound signals produced between the sounder and the receiver is recorded and serves as delaying time T2; S3, by calculating the delaying difference of the delaying time T2 and the standard time T1, and the performance of the breather paper is judged. The testing steps are simple, the cost is low, the influence of outside environmental factors is small, and testing data is accurate.

The invention relates to the technical field of inorganic mortar self-leveling, and discloses inorganic mortar self-leveling construction equipment. The construction equipment comprises a storage box, second driving motors are fixedly mounted on the periphery of the top of the storage box, stirring rods are fixedly connected to the bottoms of the second driving motors, a fixing plate is fixedly mounted on the right side of the storage box, a mounting block is arranged at the bottom of the right side of the fixing plate, and a flat laying plate is fixedly connected to the bottom of the mounting block. According to the inorganic mortar self-leveling construction equipment, push plates make contact with the outer surface of a discharging opening through spring rods, the push plates are symmetrically distributed on the two sides of the bottom of a material guide box, the push plates are in a semi-circular ring shape, inorganic mortar in the storage box is conveyed into the material guide box through a guide pipe, then the inorganic mortar is guided into a spiral conveyor through a material guide pipe, and inorganic mortar left in the spiral conveyor can fall into the discharging opening from the through hole. The arranged push plates can push the inorganic mortar on the periphery to the discharging opening under the action of the spring rods, so that the utilization rate of the inorganic mortar is increased, recycling is achieved, and the working efficiency is improved.

The invention discloses an in-situ removal device and a removal method for overwintering cyanobacteria in lake sediment, and belongs to the technical field of water environment research. The in-situ removal device for the overwintering cyanobacteria in the lake sediment comprises a reactor of which the bottom is open; the reactor is directly mounted on the lake sediment to form a closed reactor internal environment; a filter screen is arranged in the reactor; an adsorption material is placed on the filter screen; a water body disturbance device is arranged under the filter screen; the water body disturbance device comprises disturbance blades; the disturbance blades drive a water body to move; the cyanobacteria, nitrogen, phosphorus and algal toxin can be controlled and removed effectivelyby performing the in-situ removal work of the cyanobacteria by utilizing the in-situ removal device for the overwintering cyanobacteria in the lake sediment provided by the invention.

The invention discloses an overflow valve for an excavator main control valve with a filter device. The overflow valve for the excavator main control valve with the filter device is characterized by comprising a control valve element, wherein the control valve element is arranged at the front end of an inner cavity of a valve seat; the front end of the control valve element is in clearance fit with the inner cavity of the valve seat; the rear end of the inner cavity of the valve seat is connected with the front end of an adjusting bolt in a matching way; a spring seat and a spring are arrangedin the inner cavity of the valve seat; one end of the spring presses against the rear end of the control valve element through a spring seat; the other end of the spring presses against the front endof the adjusting bolt; 4 to 6 oil inlet inclined holes and 4 to 6 oil return inner holes are formed in the valve seat and are located on the left side and the right side of the clearance fit part ofthe valve element and the valve seat; a filter seat is fixed to the head part of the valve seat; a filter screen is arranged between the filter seat and an outer end port of each oil inlet inclined hole; small holes are formed in the filter seat; and each oil inlet inclined hole is at least connected with one small hole through the corresponding filter screen. The overflow valve provided by the invention has a good on and off characteristic and the inner pressure stability, and is less influenced by the external environment factor.

The invention relates to a temperature controlled switch. The temperature controlled switch includes a temperature controlled spring, a one-way valve and a flexible connecting chain for connecting thetemperature controlled spring with the one-way valve; the one-way valve includes a valve element and a valve seat, and the valve element and the valve seat are connected by adopting a shaft with an unsymmetric form; the flexible connecting chain and the valve element of the one-way valve are connected by adopting an eccentric hinge joint mode, and thus a laboursome lever is formed by the flexibleconnecting chain and the valve element of the one-way valve; the end, away from the valve element of the one-way valve, of the temperature controlled spring is fixed to a fixed object, and the end, close to the valve element of the one-way valve, of the temperature controlled spring is fixedly hinged to the flexible connecting chain; the temperature controlled spring has the temperature memory function, and elastic deformation occurs along with temperature variation; the length of the flexible connecting chain is larger than the maximum deformation of the temperature controlled spring; and the maximum deformation of the temperature controlled spring is larger than the specified displacement of the valve element of the one-way valve. The temperature controlled switch has the advantages that the structure is simple, the cost is low, type random design is easy, reliability is high, the turn-on degree of the switch is quantitatively adjusted through the temperature, the temperature controlled switch is applied to gas inlet and outlet pipelines of a fuel cell electric pile system, gas and dust impurities are prevented from entering when an electric pile stops working, the electric pileis protected from water loss, and automatic start-stop of gas feeding is achieved.