73results about "Fluid-tightness measurement using light" patented technology

This application provides a device, method, and vehicle battery pack for detecting electrolyte leakage in a vehicle battery pack, relating to the field of vehicle battery technology. The device includes a microprocessor, a leakage detection module, and an alarm module. The leakage detection module includes an electrolyte detection module, which comprises an electrolyte-sensitive membrane, an excitation light source, and a light receiving probe disposed opposite to each other. The microprocessor is electrically connected to the light receiving probe. The excitation light source emits excitation light through the electrolyte-sensitive membrane to the light receiving probe; the light receiving probe receives the excitation light passing through the electrolyte-sensitive membrane and detects the light intensity; the microprocessor determines that there is electrolyte leakage in the vehicle battery pack when the light intensity attenuation relative to a preset light intensity threshold is greater than a set attenuation threshold. Since dust and moisture do not affect the light intensity of the excitation light passing through the electrolyte-sensitive membrane, the reliability of determining electrolyte leakage in the vehicle battery pack is high.

To provide a leakage detection device that can detect a liquid leak from a given instrument.SOLUTION: A leakage detection device 10 is arranged in front of a cooling device 4 as a given instrument arranged on a floor surface 2. The leakage detection device 10 comprises: a first sheet 18; a second sheet 22; a sponge 26; and a changing color sheet 20. When water overflows to the floor surface 2 from the cooling device 4, the water is sucked by the first sheet 18 and second sheet 22 of the leakage detection device 10, and absorbed by the sponge 26. An appearance of the changing color sheet 20 changes in response to the absorption of the water by the first sheet 18, so that occurrence of a liquid leak from the cooling device 4 can be detected (notified) by the changing color sheet 20.SELECTED DRAWING: Figure 6

The application discloses a kind of based on hydrocarbon microleakage alteration information's fracture interpretation and reservoir-controlling potential evaluation method, it is related to fracture structure interpretation technical field, including data acquisition and pretreatment;Interference information extraction;Hydrocarbon microleakage alteration information extraction;Alteration and fracture space correlation verification;Fracture comprehensive interpretation;Fracture reservoir-controlling potential evaluation.The method of the present application is extracted by multi-source data fusion, alteration information caused by oil and gas microleakage is accurately extracted, the correlation model of alteration information and fracture distribution is established, and the distribution of exposed and buried fractures is efficiently identified, and then multi-dimensional quantitative scoring is completed to evaluate the fracture reservoir-controlling potential.The method effectively solves the problems of low extraction accuracy, lack of correlation verification, insufficient multi-source data fusion, difficulty in identifying buried fractures, long cycle and high cost in traditional exploration technology deep alteration, and provides reliable technical support for oil and gas exploration structure analysis, reservoir-controlling rule research and target area optimization.

An automated system to provide gas leak detection during battery manufacturing includes a battery system. A video of a gas leak occurring during a manufacturing stage of the battery system includes the gas leak as a gas vapor. A location of the gas leak is determined. A leak intensity value of the gas leak is identified to determine if the gas leak is minor and is less than or within a predetermined window or threshold permitting acceptance of the gas leak without repair, or if the gas leak requires further action including repair of the battery system.

A leak detection system for a server rack, the leak detection system is disclosed. The leak detection system includes a drip pan configured for placement under one or more liquid-cooled servers of the server rack. The server rack includes a piping system configured to convey cooling fluid through the one or more liquid cooled servers, wherein a surface of the drip pan is coated in a thermally-reactive coating. The leak detection system further includes one or more thermal imaging sensors in proximity to the drip pan, wherein the one or more thermal imaging sensors are configured to detect a change to a thermal output from the drip pan in response to contact of the cooling fluid on the thermally-reactive coating.

Disclosed herein are methods for quality control of contact lenses. An example method comprises receiving an input image indicative of a subject contact lens. The example method comprises outputting, based on analysis of the input image and using a first learning model, a first foreign matter metric and rejection data based on the analysis of the input image. The example method comprises outputting, using an artifact model and based on at least the rejection data, an artifact metric. The artifact model may be implemented based on one or more artifact attributes. The example method comprises outputting, using a second learning model and based at least on the first foreign matter metric and the artifact metric, a second foreign matter metric. The second learning model may be scale dependent. The second foreign matter metric is indicative of at least an accept or reject condition of the subject contact lens.

The application relates to the technical field of composite ventilation duct strength detection, in particular to a composite ventilation duct strength detection device and method, which comprises a fixing unit and a detection unit. Two ends of two ventilation ducts are jointly closed by cooperation of a sealing frame and a separation frame plate, the surface of the ventilation ducts is not damaged, waste is avoided, two groups of detection data are obtained, the reliability of the detection results is improved, the breaking position of the ventilation duct is recorded under cooperation of the bulb in the sealing frame and the separation frame plate, analysis and reexamination are facilitated, the process of subsequent processing of the ventilation duct is adjusted, the sealing property of the ventilation duct is detected under cooperation of the bulb inside the connection position of the two ventilation ducts, and the practicability of the detection equipment is improved.

A method of operation of an unmanned autonomous vehicle includes autonomously maneuvering the unmanned autonomous vehicle about a facility, collecting gas concentration data using one or more sensors carried on or integrated with the unmanned autonomous vehicle, and monitoring the collected gas concentration data to detect a high concentration due to a gas leak. The method further includes, if a high concentration is detected, estimating a location of the gas leak and maneuvering the unmanned autonomous vehicle toward the estimated location of the gas leak.

To provide an image processing apparatus for suppressing deterioration of liquid leakage in detection accuracy.SOLUTION: The image processing apparatus is provided with a control unit for performing the processes of: converting a first reference image in which a color is expressed in an RGB (Red, Green and Blue) format and does not include a liquid leakage to an HSV (Hue Saturation Value) format and extracting a second reference image of only an S-component; converting a first detection target image in which a color is expressed in the RGB format to the HSV format and extracting a second detection target image of only an S-component; generating a third reference image and a third detection target image obtained by smoothing the second reference image and the second detection target image, respectively; and detecting the liquid leakage based on a comparison result between the third reference image and the third detection target image.SELECTED DRAWING: Figure 6

This optical fiber gas sensor comprises: a tubular case; an optical fiber having an FBG (fiber bragg grating) part; a fixing member; a sensing member; a through-hole; and a sealing member. The fixing member fixes the optical fiber to a case in a state such that the fiber extends along the axial direction of an inner case and tension is applied to the FBG part. The sensing member covers the FBG part inside the inner case. The sensing member is formed from a catalyst for promoting the catalytic combustion reaction of a gas to be sensed. The through-hole is provided on the wall surface of the inner case. The sealing member covers the through-hole. The sealing member is formed from a hydrophobic member that transmits the gas to be detected.

The application provides a refrigerant leakage detection method, system, device and medium of an air energy device. The method comprises the following steps: controlling an infrared emitter to emit an initial infrared light with continuous wavelengths into a detection space; continuously receiving a target infrared light by the infrared emitter, the target infrared light being an infrared light formed by attenuation of the initial infrared light through refrigerant energy absorption in the detection space; determining at least one wavelength interval with signal deviation from the initial infrared light due to refrigerant energy absorption according to continuous signal values in the target infrared light; forming corresponding infrared absorption peaks by continuous signal values in each wavelength interval; determining a composition of the refrigerant according to each infrared absorption peak; and determining a leakage risk level of the refrigerant according to the composition. The method realizes accurate species and quantitative analysis and intelligent grading early warning of the refrigerant gas, and improves detection sensitivity and decision efficiency.

The application belongs to the field of gas meters, in particular to a camera gas meter with leakage self-checking function, which comprises a gas metering chamber and a meter fixedly connected to the front end of the gas metering chamber, the top of the gas metering chamber is fixedly connected with two connecting valves, the front end of the meter is provided with a roller counter for recording the amount of gas and a display screen, and the outer side of the roller counter and the display screen is fixedly connected with a protective frame made of transparent material; through such a setting, not only the accurate recording function of the gas usage amount is ensured, the real-time data recorded by the roller counter is directly detected by a high-sensitivity detector, and the data of the roller counter is recorded by the direct shooting method for calibration comparison at regular intervals to ensure the accuracy of the data; at the same time, the rotatable detection roller is used to detect the gas content in the space around the gas meter without dead angle, and cooperates with the camera module again to reduce accidental errors, realizes the function of gas leakage self-checking, and further ensures the safety of the user.

A method and system for identifying and rejecting non-compliant single-dose capsules.

To provide a gas leakage monitoring device, a gas leakage monitoring method, and a program capable of indicating presence or absence of gas leakage accurately in a further short period of time.SOLUTION: A gas leakage monitoring device is provided with: an image data acquisition unit which acquires image data, as original image data, generated by being photographed at different time points; a vector generating unit which selects two pieces of original image data in a time series order from the original image data, and generates a vector indicating a moving direction and a moving speed for each pixel contained in the original image data by executing a prescribed image process for calculating the moving direction and moving speed of an object contained in the image to the two pieces of selected original image data; and a frequency distribution generation unit which generates a frequency distribution for gas leakage monitoring by classifying the vector generated by the vector generating unit for each segment of a previously determined length of a vector length.SELECTED DRAWING: Figure 1

A leak recordation system can be used to automatically monitor gaseous emissions in an industrial plant. The leak recordation system can include a leak detection unit with a detector and a transmitter. The detector can quantify a leak from a leaking element of an industrial plant. The transmitter can output location data related to the leak. The leak recordation system additionally can include a computing device that can use the location data to determine an identifier that maps to an identity of the leaking element such that the leaking element is identifiable in a database system. The computing device then can use the identity of the leaking element and the database system to determine one or more parameters of the leak, such as a quantification of the leak. The computing device can record the quantification of the leak and can generate a cumulative leak quantification related to the industrial plant.

The application discloses a kind of based on artificial intelligence's optical fiber embankment underwater piping seepage patrol system, it is related to embankment patrol management technical field, including patrol management center, the patrol management center communication connection has following module, wherein: data acquisition module, for using optical fiber sensing network real-time monitoring the underwater piping seepage situation of embankment, and the data collected are preprocessed;Intelligent analysis and diagnosis module, based on artificial intelligence algorithm identifies the characteristic mode of piping seepage, judges whether there is danger.The application utilizes optical fiber sensing network real-time monitoring underwater piping seepage situation, can quickly capture the physical quantity data related to seepage, analyzes data by AI big model based on artificial intelligence algorithm, accurately identifies the characteristic mode of piping seepage, judges whether there is danger, compared with artificial patrol, greatly improve the efficiency and accuracy of danger discovery, can discover hidden danger in time in piping early stage, effectively reduce the risk of embankment breach.

According to an aspect, a method for inspecting a pipe installed behind a surface is provided. The method comprises: inserting a probe into the pipe, the probe comprising a camera configured to provide image data representative of a field of view of the camera inside the pipe, the probe further comprising a sealing element configured to slidingly seal against an inner surface of the pipe as the probe is propelled along the pipe; applying a pressure difference across the sealing element in the pipe, such that a high pressure side is provided on a first side of the sealing element and a low pressure side is provided on a second side of the sealing element; propelling the probe along the pipe towards the low pressure side while the sealing element slidingly seals against the inner surface of the pipe and while the camera captures image data; and transmitting the image data to a unit outside the pipe.

The application provides a generator set running, leaking and dripping intelligent monitoring method and system based on AI recognition, relates to the field of generator set intelligent monitoring, and comprises the following steps: collecting an image sequence and performing multi-waveband spectral decomposition to generate a spectral feature map, so as to identify a leakage area and a material type; then, a leakage area centroid change is calculated to construct a diffusion vector field, on the basis of which, a diffusion boundary is predicted and a diffusion risk coefficient is calculated; the shortest distance between the predicted boundary and the unit boundary is combined to determine an early warning level; finally, the leakage source is located through reverse tracing of the diffusion vector field. The application realizes early and accurate identification of leakage, diffusion trend prediction and source positioning, and improves the automation and early warning timeliness of monitoring.

To accurately estimate a feature quantity related to a gas concentration and accurately measure a gas concentration in a space even in a case where a background temperature changes due to a factor other than gas. A gas concentration measuring device 20 includes an inspection image acquisition unit 211 that acquires infrared image time-series data captured by an infrared camera 10, a pixel specifying unit 2121 that specifies a target pixel for gas concentration measurement and a reference pixel with a gas concentration lower than a gas concentration of the target pixel in the infrared image, a without-gas background temperature estimation unit 2122 that estimates without-gas background temperature time-series infrared data in the target pixel based on target pixel time-series infrared data and reference pixel time-series infrared data in time-series data of the infrared image, and a concentration-feature-quantity calculation unit 2123 that calculates time-series data of a feature quantity related to a gas concentration of the target pixel based on the target pixel time-series infrared data and without-gas background temperature time-series infrared data of the target pixel.

The application relates to a valve ball valve seat sealing degree testing device, which comprises a testing platform, a rotating device, a light source device and a sensing device. The rotating device is arranged on the testing platform and is used for placing a valve ball valve seat to be tested. The light source device is arranged below the testing platform and is used for irradiating the bottom of the valve ball valve seat to be tested. The sensing device is arranged above the testing platform and is used for sensing the light intensity above the valve ball valve seat to be tested. A host computer is used for acquiring the light intensity measured by the sensing device and judging whether the sealing degree of the valve ball valve seat to be tested is qualified or not according to the light intensity. The application can test the sealing degree of the valve ball valve seat more quickly and conveniently and the testing is accurate.

The application discloses a coil device oil leakage detection method and device, and relates to the technical field of oil leakage detection. The method comprises the following steps: taking a picture of the oil level and oil temperature of a coil device through a monitoring device, and recording the oil level and oil temperature as reference values; regularly taking an image of the coil device; judging the oil volume and temperature change according to the image of the coil device, determining a normal oil level range, and issuing a warning when the normal range is exceeded; if the oil level exceeds the normal range, collecting at least three times to confirm the abnormality; after the confirmation, taking the abnormal oil level and oil temperature as the reference, and retesting, and if the abnormality occurs again, the coil device is determined to have an oil leakage fault; the method can timely inform the oil leakage risk of the device and accurately diagnose the risk, and has good application effects in terms of timeliness and accuracy. The method fully solves the problems of untimely manual inspection and subjective misjudgment in defect discovery.

This invention relates to the field of optical detection technology, specifically to a leakage detection device and system for Sachima packaging bags. The device includes a smooth moving belt and an optical detection cover that can move up and down relative to the smooth moving belt. The Sachima packaging bag is positioned above the smooth moving belt and transported by it. The optical detection cover has openings at the top and bottom, with the top opening sealed by a glass cover. The leakage detection device for Sachima packaging bags of this invention uses an optical camera to detect changes in the reflection pattern of light emitted from a strip light panel on the outer surface of the Sachima packaging bag under negative pressure to determine whether a leakage problem has occurred.

This application provides a corrosive sewage pipeline inspection device with a protective structure, relating to the field of sewage pipeline inspection technology. It includes a corrosion-resistant sealed protective box, with a sealed inspection box fixedly installed on the front side of the protective box. A turntable is rotatably installed inside the sealed inspection box. A sewage pipeline sealing protection imaging and inspection component is incorporated, forming a double-sealed structure between the corrosion-resistant sealed protective box and the sealed inspection box. A sealed rotating cylinder rotates within a rotating sealing groove, ensuring that the internal components are isolated from corrosive sewage. A sealed mounting bracket protects the imaging and inspection camera and supplementary lighting, and a sealing plug in the battery compartment prevents corrosion of the charging interface. The overall design improves the device's durability in corrosive environments. Furthermore, the sealed rotating cylinder, sealed mounting bracket, and the imaging and inspection camera can be directly powered through the battery compartment during rotation, eliminating the need for additional cables and preventing cable entanglement during rotation.

The utility model discloses an easy -open can uncapping's light leakage detection device, including fixed base, detection head, lift cylinder and light source, the surface fixed connection of fixed base has the detection bin, and the left and right sides of detection bin are established with inlet and discharge port respectively, and detection head and light source all are located inside detection bin, and the upper end fixed connection of detection head has lift cylinder, and the upper end of lift cylinder is fixedly connected with the inner wall of detection bin, and the inside fixed connection of detection head has photoelectric sensor, and the lower extreme of detection head is equipped with the sealing head, and light source is located the periphery of detection head and is fixedly connected with detection head, and is equipped with support frame between light source and detection head. The utility model discloses through fixed frame, detection head, lift cylinder and light source composition light leakage detection device, utilizes lift cylinder to drive detection head and carries out the lifting movement, and the detection head is conveniently buckled on the surface of easy -open can, and cooperates the light source of detection head side wall annular distribution, and it is convenient to carry out light leakage detection to easy -open can surface.