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

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.

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 relates to an improved non-contact optical measurement method of the volume of an irregular object with a complex surface. Based on the volume measurement technology of image processing, the method comprises the steps of camera calibration, image collection, image preprocessing of carrying out image preprocessing through filtering and removing interference information in the image, image binarization, image pixel and graphic height calculation, object bottom area calculation, and volume calculation. The problem that the contact with an object is needed in measuring the volume of the object at present is solved, the problem that the 3D reconstruction of an image and the generation of object 3D data points are needed in calculating volume through image processing and the measurement time is long are solved, and the problem of expensive price of testing equipment of CT fracture scanning and laser scanning is solved at the same time. The device is used to measure the volume of an object with a complex surface, and the method has the advantages of fast measuring speed, high precision and convenient operation.

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 method for classifying vehicle types by using multiple geomagnetic sensors. The problems that existing vehicle type classification is high in cost, complex in processing process and difficult to deploy on a large scale are mainly solved. The method is implemented by the following scheme: sequentially arranging N geomagnetic sensors on the road sides at equal intervals d,wherein each geomagnetic sensor collects magnetic field data around the geomagnetic sensor and transmits the magnetic field data to a data processing module for storage, and judges whether a vehicle passes through the detection range of the sensor; calculating the time difference of the vehicle in passing by two adjacent sensors in the N sensors, and calculating the vehicle speed and the vehicle magnetic length according to the time difference; and setting a vehicle magnetic length double-threshold value and a Z-axis magnetic field intensity threshold value, obtaining Z-axis geomagnetic data and a magnetic length through which the vehicle passes, and comparing the Z-axis geomagnetic data and the magnetic length with the set threshold values to obtain a vehicle type judgment result. The method can accurately obtain the vehicle model information of the passing vehicles, is high in reliability, is low in cost, is easy to achieve large-scale deployment, and can be used for the highway intelligentization.

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 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 discloses a mercury ion detection probe based on an intramolecular hydrogen bond structural unit, a preparation method and an application thereof. The structure of the fluorescent probe is shown in formula I, which uses 5-formyl salicylaldehyde as a raw material, first forms a benzothiazole derivative with o-aminothiophenol, and then condenses with barbituric acid. The probe of the invention has stable optical properties, high detection sensitivity to mercury ions, low detection limit and a response range of 2-20.0 μM. Good selectivity, no silver ions, barium ions, calcium ions, lithium ions, sodium ions, potassium ions, magnesium ions, aluminum ions, nickel ions, zinc ions, mercury ions, cobalt ions, lead ions, palladium ions, strontium ions response. The fluorescent molecular probe of the invention has practical application value in fields such as the detection of mercury ions in biochemistry and environmental chemistry. (I).

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 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 discloses a plant leaf shading device and a chlorophyll fluorescence measuring method using the shading device. The shading device includes a front shading layer used to cover the upper surface of the blade and provided with holes, and is used to cover the lower surface of the blade and is connected with the front shading layer. The rear light-shielding layer connected by layers, and the movable light-shielding cover for covering the opening, the front and rear light-shielding layers and the light-shielding cover are all made of soft and lightweight materials. Lightweight and low-cost tinfoil can be used as a soft and lightweight material, which is simple, convenient and effective for shading. It can also be adjusted according to the size of the leaves. The shading area is large without damaging the leaves. It is suitable for all types of plant leaves. The shading device of the invention is used for the dark adaptation of plant leaves in the measurement of chlorophyll fluorescence, is less affected by external environmental factors, is beneficial to the stability of data measurement, and the measurement data is relatively close to the complete shading condition.

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.

Embodiments of the present invention provide a face image processing method and device. In the embodiment of the present invention, all face images appearing in the video image can be detected by using the seetaface face detection algorithm to detect the face images in the video image, so as to avoid missing the face images. The eigenvector of the directional gradient histogram is invariant to rotation, scaling, and brightness, and is also stable to factors such as viewing angle changes, light, and noise. Therefore, it is less affected by external environmental factors and has strong robustness. Therefore, according to the directional gradient histogram Figure feature vector to judge whether the face image being tracked and the current face image are the face images of the same person, which can improve the judgment accuracy.

The invention discloses a protection type vehicle bottom blast environment simulation device. The protection type vehicle bottom blast environment simulation device comprises a protection wall, a fixed platform fixedly connected with a lower portion of the protection wall, and a supporting adjusting mechanism arranged at a lower portion of the fixed platform, wherein the protection wall comprises an inner wall, a middle wall and an outer wall which are sequentially and concentrically arranged from inside to outside, the inner wall and the middle wall are big-end-up conic cylinders, the outer wall is a cylindrical cylinder, multiple closely-arranged horn holes are arranged on the inner wall and the middle wall, each horn hole is a big-end-inside hole, a central axis points to a blast center, an inner side of the middle wall is pasted with foamed aluminum, and an inner side of the outer wall is pasted with foamed aluminum. According to the simulation device, a small-scale test can be carried out by a tester, and the high-precision test data can be acquired while the blast environment is guaranteed to be safe.