14 results about "Detection filter" patented technology

The utility model relates to laser welding technical field especially relates to a kind of laser welding protective gas pressure detection filtering device, including air inlet pipeline, air inlet pipeline gas inlet port is equipped with pressure controller, air inlet pipeline gas outlet side is equipped with solenoid valve, air inlet pipeline gas outlet port is equipped with pressure sensor, separator and filter are successively installed in air inlet pipeline middle part, air inlet pipeline gas inlet side, separator and filter connection side and filter gas outlet side are all equipped with differential pressure gauge. By making protective gas successively through separator and filter, thereby double interception filtering to the impurity in protective gas, avoid impurity and molten metal reaction to weld defect, etch welding head lens, increase maintenance cost, and avoid impurity block pipeline, cause pressure fluctuation, wherein the setting of differential pressure gauge, the pressure value after protective gas passes through separator and filter is monitored respectively, avoid filter being blocked by impurity and unknow, affect air intake, and then lead to pressure fluctuation.

Various systems and methods for scheduling filter maintenance of an imaging system are described herein. An example method for scheduling filter maintenance of an imaging system includes detecting, via a sensor, that a pressure differential across a filter is below a threshold, providing, via a display of the imaging system, an alert to an operator that the pressure differential across the filter is below the threshold, and scheduling filter maintenance based on the pressure differential being below the threshold.

The application discloses a substation robot inspection identification method and system, comprising: a substation equipment real-time video stream is collected by an inspection robot camera, images are intercepted at an interval of 1 frame per several seconds, and through a definition detection filtering fuzzy invalid frame, a to-be-identified image is obtained; the to-be-identified image is input into a multimodal large model, equipment type classification is completed, and the equipment types include a pointer instrument, a multi-row digital instrument, a power cabinet and an infrared image; a differentiated processing procedure is executed according to different equipment types, and reading, state or characteristic information of each equipment is output; a standardization JSON format record is generated by integrating a frame time stamp, an equipment type identifier, an identification result and an identification state, and is stored. Through the multimodal large model, accurate classification of various equipment types is realized, differentiated processing procedures are designed for different equipment, equipment information such as a pointer instrument, a multi-row digital instrument, a power cabinet and an infrared image can be efficiently identified, and the application is suitable for a complex equipment environment of a substation.

The present application provides an appearance inspection device that can acquire information for properly detecting a defective portion of an appearance image of an object even when the roughness of a surface varies depending on the object. Specifically, the appearance inspection device (100) includes an image acquisition unit (5) that acquires an appearance image (10) of a semiconductor wafer (U), and a processing unit (1) that generates a detection image (10c) for detecting a defective portion (12) by performing detection filtering processing on the appearance image (10), the processing unit (1) being configured to generate the detection image (10c) corresponding to the roughness of a surface (S) of the semiconductor wafer (U) captured in the appearance image (10) by performing detection filtering processing that reduces the detection sensitivity to the defective portion (12), the defective portion (13) as the roughness of the surface (S) of the semiconductor wafer (U) captured in the appearance image (10) becomes greater.

The present invention provides an image forming apparatus and program capable of detecting the state of a filter. [Solution] The image forming apparatus according to the embodiment includes an image forming station, a filter, a sensor, and a processor. The image forming station performs image forming using toner. The filter collects toner scattered from the image forming station. The sensor detects the weight of the filter, including the toner collected by the filter. The processor detects information indicating an abnormality in the amount of toner collected by the filter if the weight detected by the sensor exceeds a predetermined threshold before a predetermined maintenance period is reached.

This invention relates to the field of nucleic acid detection technology, specifically to a fluorescence detection system for a microfluidic chip used in nucleic acid detection and its application. Specifically, this invention provides a fluorescence detection system and method for a centrifugal nucleic acid detection microfluidic chip. The design concept of the fluorescence detection system of this invention is as follows: the excitation optical path and the microfluidic chip are synchronously fixed on a chip fixing module, keeping the excitation optical path and the detection chamber relatively stationary and unaffected by centrifugal rotation, ensuring that the excitation light always accurately acts on the detection chamber; a one-to-one correspondence between the excitation optical path and the detection chamber is adopted to achieve synchronous excitation of multiple chambers, eliminating the need for expensive optical scanning or electric adjustment mechanisms to achieve complex synchronous control; by placing a camera above the chip fixing module and equipping it with a dedicated detection filter, and using orthogonal optical paths, the capture efficiency and signal-to-noise ratio of the fluorescence signal are improved, thereby solving the problems of unstable excitation, low detection efficiency, and poor signal capture in existing technologies.

The application relates to a Beidou and mobile communication fusion positioning method based on modulation detection, and belongs to the technical field of satellite navigation and communication engineering. The method comprises the following steps: acquiring a Beidou positioning signal and a high-frequency carrier frequency signal, extracting a frequency parameter of the Beidou positioning signal and presetting a carrier frequency screening condition, constructing an amplitude modulation binding scheme, forming an initial composite signal, constructing a multi-path integration multiplexing mechanism, according to the number of signal paths and time delay requirements, adopting a combined superposition or time slot allocation mode to complete signal integration, establishing a same network transmission mode, transmitting the signal to a target area by means of existing transmission resources, setting a signal separation and restoration process, restoring the Beidou positioning signal through carrier frequency extraction, signal separation and interference filtering, and according to signal purity feedback, iteratively optimizing modulation amplitude and detection filtering parameters. Efficient compatibility of the Beidou positioning signal and the mobile communication network is realized, existing communication facilities are reused without additional wiring, and the problem of Beidou signal transmission in a complex shielding scene is solved.

The application relates to a culture medium batching device and a culture medium fermentation system. The culture medium batching device comprises a batching tank, a stirring mechanism, a filter and a detection assembly. The batching tank is provided with a batching cavity, a feeding port and a discharging port, the batching cavity is communicated with the feeding port and the discharging port, and the discharging port is connected with a discharging pipe. The stirring mechanism is arranged in the batching tank, at least part of the stirring mechanism is arranged in the batching cavity, and the stirring mechanism is used for stirring the culture medium in the batching cavity. The filter intercepts insoluble substances in the culture medium, so that the culture medium filtered by the filter is particle-free and completely dissolved. In the preparation process, the detection assembly detects whether the filter is blocked in real time. If the filter is blocked, the filter is cleaned in time, the filter can smoothly filter the insoluble substances in the culture medium, the culture medium flowing out of the filter is completely dissolved, and therefore, the valve on the pipeline conveying the fermentation liquid is prevented from being worn out and leaking, so that contamination and waste of the whole batch of fermentation liquid are avoided.

According to embodiments, an image forming apparatus includes an image forming station, a filter, a sensor, and a processor. The image forming station performs image formation using a toner. The filter collects the toner scattering from the image forming station. The sensor detects the weight of the filter including the toner collected by the filter. In a case where the weight detected by the sensor exceeds a predetermined threshold before a predetermined maintenance period comes, the processor detects information representing the abnormality of a toner collection amount in the filter.

This utility model relates to the field of cleanliness particle detection technology, specifically a cleanliness particle detection filter membrane fixture, including a filter membrane fixture body. The filter membrane fixture body has an aluminum alloy base, and a suction chamber is formed within the aluminum alloy base. A support groove is formed above the suction chamber. A base plate is engaged with the support groove within the aluminum alloy base, and an aluminum alloy pressure ring is formed above the base plate. A through hole is formed in the center of the aluminum alloy pressure ring. A negative pressure suction port is formed on the side of the aluminum alloy base, located on the side of the base plate. This cleanliness particle detection filter membrane fixture ensures that the filter membrane remains flat during detection, ensuring that the focusing surface is on a single water surface. This eliminates the need for focusing algorithms, improving detection speed and repeatability, and greatly facilitating cleanliness particle detection.

The invention provides an image forming apparatus capable of detecting the state of a filter. According to one embodiment, an image forming apparatus includes a fan motor, a conveyance path, a pressure loss generating member, a current detector, and a processor. The fan motor is electrically driven. In the conveying path, the air flowing by the fan motor moves. The pressure loss generating member generates a pressure loss that changes the drive current value of the fan motor. The current detector measures a driving current value in the fan motor. The processor detects an abnormality in the pressure loss generating member when the amount of change in the drive current value of the fan motor detected by the current detector exceeds a predetermined threshold value before a predetermined maintenance period is reached.

This application discloses a polymerase chain reaction (PCR) detector and its fluorescence detection device. The fluorescence detection device includes a sample reactor, an excitation component, and a fluorescence receiving tube, all fixedly mounted, as well as an excitation filter module, a detection filter module, and a control module, all driven by a driving device. The excitation filter sequentially passes through the optical path of the excitation component, and the corresponding detection filter simultaneously passes through the optical path of the fluorescence receiving tube. The fluorescence receiving tube receives fluorescence signals from at most one sample reactor at a time. This application can quickly, efficiently, and accurately complete multi-channel fluorescence detection, while also featuring a simple structure, small size, fast detection speed, high stability, and a significantly improved signal-to-noise ratio.

The application discloses a kind of bank merchant customer group-based digital operation method, by constructing unified data middle station, using dynamic label system and multi-dimensional weighted matching algorithm, realize from customer group screening, product adaptation, intelligent touch to the closed loop of effect attribution.It includes: based on the automatic trajectory tracking mechanism of life cycle stage, cross-channel reach conflict detection filtering model, and the operating state evaluation algorithm of fusion financial assets and collection behavior.The present application aims to realize customer operation mode systematization, operation direction digitization, customer value quantification and implementation tool intelligentization through digital technology, and solve the problems of insufficient maintenance personnel, customer fine classification difficulty, channel reach overall difficulty and delayed effectiveness feedback in existing bank merchant operation.The method significantly improves the precision and compliance of merchant operation.