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651 results about "Dust detection" patented technology
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System and method for significant dust detection and enhancement of dust images over land and ocean
InactiveUS20050012035A1Enhanced signalHigh sensitivityRadiation pyrometryMaterial analysis by optical meansWater useDust detection
A new processing capability for dust enhancement over land or water using image data from the Sea-viewing Wide Field of View Sensor (SeaWiFS) has been developed for Naval meteorology / oceanography (MetOc) operations support. The data are captured via direct broadcast high-resolution picture transmission (HRPT) at Navy Regional Centers in Rota, Bahrain, and Yokosuka, and processed at the Naval Research Laboratory in Monterey. The raw data are calibrated, corrected for missing lines and clutter, corrected for molecular scatter contamination, and enhanced through multispectral combination to yield value added products. The processing has been automated completely such that products, generated upon receipt of data, are hosted upon a password protected website typically 60 to 90 minutes from time of initial capture. This invention summarizes the SeaWiFS instrument capabilities, the protocol followed for automated near real-time processing, a physical basis for the NRL enhancements, and specific examples of the products with extension to over-land dust enhancement as enabled by MODIS. It closes with a glimpse of the potential utility of these products from the perspective of the warfighter.
Owner:THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE NAVY
Dust detection method and apparatus for cleaning robot
A dust detection method and apparatus of a cleaning robot. The dust detection method involves acquiring a floor image as a current floor image of a predetermined place at a current location of the cleaning robot in the predetermined place; obtaining a difference image between the current floor image and a background image selected from a feature map consisting of a plurality of floor images of the predetermined place; and detecting a dusty area based on the difference image and adjusting a cleaning power of the cleaning robot.
Owner:SAMSUNG ELECTRONICS CO LTD
Simulation experimental system for controlling mine tunnel dust environment
InactiveCN101520365AOvercoming Hard-to-Simulate DefectsAerodynamic testingDust removalData informationDust detection
The invention discloses a simulation experimental system for controlling a mine tunnel dust environment, which comprises a simulation tunnel, a ventilation system, a dust generating system, a temperature and humidity controlling system, a water supplying and draining system, a dust removing system, a signal detecting system, and a computer controlling and data analyzing system, wherein the simulation tunnel is connected with the ventilation system, the dust generating system and the temperature and humidity controlling system in the tunnel to simulate the temperature, humidity, wind speed, air pressure and dust concentration parameters in the mine, and is connected with the water supplying and draining system and the dust removing system to spray and remove dust passing through the tunnel. The signal detecting system provides related data information for the computer controlling and data analyzing system. The simulation experimental system is similar to a DC-blowing-type wind channel in a small-scale mine environment. An area in which air flows uniformly is created in the tunnel. By using the demarcated flow field, various scientific research activities related to mine dust detection, dust prevention, and the like can be performed.
Owner:SHANDONG UNIV OF SCI & TECH
Air conditioner capable of being detected automatically and prompting user to clean filter screen and prompt method thereof
ActiveCN103994559AGuaranteed uptimeRunning at its bestSpace heating and ventilation safety systemsLighting and heating apparatusDust detectionEngineering
The invention discloses an air conditioner capable of being detected automatically and prompting a user to clean a filter screen and a prompt method thereof. The air conditioner comprises a dust detection module, a main control module and a display module. When the air conditioner operates normally, the dust detection module detects concentrations of dust in the environment where the air conditioner is used and sends dust concentration values to the main control module; the main control module records operation durations under different dust concentrations according to the received values of the concentrations, detected by the dust detection module, of dust in the environment where the air conditioner is used, and the accumulated operation duration is calculated through conversion; when the accumulated operation duration of the air conditioner under the environments with different dust concentrations reaches to a threshold value, the display module prompts the user that the filter screen needs to be cleaned, so the dust accumulation condition of the filter screen can be displayed in time, the user can clean the filter screen in time through display of the air conditioner, and it is guaranteed that the air conditioner operates under the optimal state. Through the prompt method, the dust accumulation degree of dust on the filter screen under the operation environment of the air conditioner can be embodied more obviously.
Owner:GUANGDONG CHIGO AIR CONDITIONING
Image capturing apparatus, control method thereof, and program
InactiveUS20070159551A1Inhibition effectTelevision system detailsColor television detailsLocation detectionDust detection
This invention enables suppression of the influence on a captured image of dust even when dust sticks to an image sensor, a protective glass fixed on the image sensor, or a filter. An image capturing apparatus includes an image sensor which generates an image signal by photo-electric conversion of an object image, a dust position detection unit which detects, from a dust detection image signal as the image signal generated by causing the image sensor to capture a dust detection object as an object having an almost uniform color, dust position information that is information of the position and size of dust in the image sensing plane of the image sensor, a lens information acquisition unit which acquires lens information of a lens used upon capturing the object, and a recording unit which records the dust position information detected by the dust position detection unit and the lens information acquired by the lens information acquisition unit in association with captured image data.
Owner:CANON KK
Image reading apparatus
InactiveUS20080137107A1Image enhancementDigitally marking record carriersDust detectionComputer science
An image reading apparatus for reading an image on an original document by irradiating it with light and photoelectrically converting reflected light from it by an image pickup unit, including: an original document guide member positionable opposite to the image pickup unit, with a conveyance position of the original document therebetween; a white reference member that is positionable, the same as the original document guide member, and has a reference white color; an achromatic constant-density reference member that is positionable, the same as the original document guide member, and has a reference achromatic constant-density; a drive unit that moves one of the three members so as to be positioned opposite to the image pickup unit; and a control unit that controls execution of detection processings for dust detection from data obtained by moving, as described above, the achromatic constant-density reference member and the white reference member by reading them.
Owner:KONICA MINOLTA BUSINESS TECH INC
Capacitive detection of dust accumulation in a heat sink
InactiveUS20090021270A1Resistance/reactance/impedenceSemiconductor/solid-state device detailsCritical levelDust detection
A system and method for electronically detecting the accumulation of dust within a computer system using a capacitive dust sensor. The dust detection system may be implemented on a smaller computer, such as an individual PC, or in a more expansive system, such as a rack-based server system (“rack system”) having multiple servers and other hardware devices. In one embodiment, each server in a rack system includes a capacitive sensor responsive to the accumulation of dust. The capacitive sensor may include one or more capacitive plates integral with a heatsink. As dust collects on the capacitive plates, the capacitance increases. When a capacitance setpoint is reached, indicating the dust has reached a critical level, an alert is generated. The alerts may be received by a management console for the attention of a system administrator. Each alert may contain the identity of the server generating the alert, so that the system administrator knows which server(s) are to be removed for cleaning.
Owner:IBM CORP
Image reading device and noise detecting method
InactiveUS20070109605A1Function increaseCancel noiseImage enhancementImage analysisDust detectionPaper document
An image reading device compares pixel values of an image data, which is output when a document is not at a reading position, with a threshold and generates a first dust detection data; compares a image data, which is output while the document is passing the reading position, with a threshold and generates a second dust detection data; when dust is indicated as being present at a matching position in a main scanning direction in both the first dust detection data and the second dust detection data, generates a third dust detection data; and judges that noise is present when the third dust detection data indicates that dust is continuously present for at least a prescribed length in a sub scanning line direction.
Owner:FUJIFILM BUSINESS INNOVATION CORP
Aligning apparatus for image module and application method thereof
An aligning apparatus for an image module comprises a plurality of operable devices which are selectively act on an image module so that the image module can rotate from one device to another device and different operation applications can be implemented to achieve the online integrated aligning process of the image module. The operable devices include a loading and unloading device for adjustably mounting the image module; a dispensing device for automatic dispensing operation for the image module; a dust detection device for pre-examining the dust in the image module in a dark field; and a six-axis aligning device for adjusting the relative position of a lens assembly of the image module and a sensor and ensuring the concentricity of the lens optical axis and the vertical axis of the sensor surface. The aligning apparatus for the image module also comprises an apparatus frame member for respective connection of the plurality of operable devices so that the whole machine can be fixed and movable.
Owner:NINGBO SUNNY OPOTECH CO LTD
Dust collector control system
InactiveUS20110023709A1Increase valueCombination devicesAuxillary pretreatmentMeasurement deviceControl system
System for a dust filter unit includes dust detector to measure dust concentration in an outlet conduit of the filter unit. A controller establishes the detected dust concentration following a cleaning cycle of a filter of the unit and in one form compares that detected concentration to a baseline concentration to identify whether there is possible leak in the filter. The system also includes monitoring arrangements to measure pressure profiles in the unit to assess the state of values and / or filters in the unit. Methods of detecting the state of a filter unit are also described.
Owner:PTRONIK INT
Dust detection alarm system
InactiveCN104345020AMeet needsTaking into account the costParticle suspension analysisPlant safetyDust detection
The invention relates to a dust detection system, and in particular relates to a detection alarm system which can concentrate the situations of different detection points in one same area. The dust detection alarm system provided by the invention aims to relatively accurately measure the dust concentration inside different industrial buildings and rapidly make an alarm to operators working in the industrial buildings when the measured concentration value exceeds a concentration value which may cause an explosion. The dust detection alarm system mainly comprises dust detection alarm nodes and two stages of background monitoring alarm systems, and three stages of alarm to industrial buildings, factory security monitoring departments and town security monitoring departments can be made. Full-direction multi-stage real-time accurate dust concentration detection and alarm can be achieved indeed, and thus the safe production of factories is ensured.
Owner:HAIAN NENGDU SOFTWARE TECH
Smoke dust detection and purifying method and device applied in 3D printing sealed cabin
The invention discloses a smoke dust detection and purifying method and device applied in a 3D printing sealed cabin. The smoke dust detection and purifying device comprises a gas circulation and purifying system for conducting circulation purifying on gas in the sealed cabin, a smoke dust concentration detection device for detecting the smoke concentration in the sealed cabin, an oxygen detection device for detecting the oxygen content in the sealed cabin and a control device. According to the smoke dust detection and purifying method and device, the gas purity in the sealed cabin is kept by continuously adjusting the rotating speed of a motor of a smoke dust filter; furthermore, the control device detects signals of the smoke dust concentration detection device continuously, gives out corresponding control commands and sends the smoke dust concentration detection signals, the rotating speed level of the motor of the smoke dust filter and the pressure difference signals of a first pressure sensor and a second pressure sensor to a display. By means of the smoke dust detection and purifying method and device, the molding stability and part quality of a 3D metal printing device can be improved greatly, and safety and reliability in the machining process are guaranteed.
Owner:SOUTH CHINA UNIV OF TECH
Method for monitoring environment of textile workshop
InactiveCN104090558AImprove work efficiencyIncrease the level of automationProgramme total factory controlDust detectionNoise detection
The invention relates to a method for monitoring the environment of a textile workshop. According to the method, a system for monitoring the environment of the textile workshop comprises a temperature sensor set, a humidity sensor set, a dust detection instrument set, a noise detection instrument set, an infrared flame detector set and a processor. The processor is respectively connected with the temperature sensor set, the humidity sensor set, the dust detection instrument set, the noise detection instrument set and the infrared flame detector set. Environment optimization operation or environment alarming operation is conducted according to detection results of the temperature sensor set, the humidity sensor set, the dust detection instrument set, the noise detection instrument set and the infrared flame detector set. Real-time monitoring of multiple parameters of the whole range of the textile workshop is achieved, the intelligent degree of the system for monitoring the environment of the textile workshop is improved, and therefore health of textile workers working in the textile workshop and the yield of textile products are guaranteed and noise pollution and fire accidents in the textile workshop are avoided.
Owner:WUXI BEIDOUXINGTONG INFORMATION TECH
Image reading apparatus and program
The object of this invention is to provide an image reading apparatus capable of greatly reducing generation of a black streak image caused by dust, dirt, or the like at a flow scanning position on a document glass table in flow scanning of reading a document image while moving the document sheet at a predetermined speed. To achieve this object, the CPU of the image reading apparatus performs dust detection processing of detecting dust on the document glass table by a dust detection circuit during a document nonreading period. The CPU executes dust correction processing based on the dust detection result during continuous document reading. During an interval between the end of a series of image reading JOBs and the next image reading JOB, the CPU performs dust avoidance processing of changing the flow scanning position to a position free from any dust on the document glass table. If dust is difficult to avoid, the CPU inhibits flow scanning and executes control of switching flow scanning to optical scanning document reading.
Owner:CANON KK
Coal mine underground roadway ventilation alarm device
InactiveCN106640198AEnsure safetyProtection of potential safety hazardsMining devicesComputer controlDust detectionComputer module
The invention belongs to the field of coal mine safety monitoring devices, and particularly relates to a coal mine underground roadway ventilation alarm device. The coal mine underground roadway ventilation alarm device comprises a ventilation detection unit, a poisonous gas detection unit, a dust detection unit, a human body detection unit, a microprocessor, an alarm unit and a wireless communication module; the poisonous gas detection unit is used for detecting the concentrations of methane, CO, NO2 and SO2 inside an underground roadway in real time; the dust detection unit is used for detecting the concentration of dust inside the underground roadway in real time; the human body detection unit is used for detecting whether a person exists or not; and the wireless communication module is used for sending detection results to a monitoring center and a mobile client. The coal mine underground roadway ventilation alarm device can achieve automation and intelligence of a mine ventilation system, starting and stopping of a standby draught fan are automatically controlled according to the underground gas concentration, the ventilation capacity in the roadway is ensured, and thus the requirements for safe production and reliable operation are met; and meanwhile, alarms of different kinds of voice can be automatically given out according to the out-of-limit conditions of various related important monitoring indexes.
Owner:HENAN COLLEGE OF IND & INFORMATION TECH
Image reading apparatus
An image reading apparatus for reading an image on an original document by irradiating it with light and photoelectrically converting reflected light from it by an image pickup unit, including: an original document guide member positionable opposite to the image pickup unit, with a conveyance position of the original document therebetween; a white reference member that is positionable, the same as the original document guide member, and has a reference white color; an achromatic constant-density reference member that is positionable, the same as the original document guide member, and has a reference achromatic constant-density; a drive unit that moves one of the three members so as to be positioned opposite to the image pickup unit; and a control unit that controls execution of detection processings for dust detection from data obtained by moving, as described above, the achromatic constant-density reference member and the white reference member by reading them.
Owner:KONICA MINOLTA BUSINESS TECH INC
Capacitive detection of dust accumulation using microcontroller component leads
A system and method are used for electronically detecting the accumulation of dust within a computer system using a capacitive dust sensor. The dust detection system may be implemented on a smaller computer, such as an individual PC, or in a more expansive system, such as a rack-based server system (“rack system”) having multiple servers and other hardware devices. In one embodiment, each server in a rack system includes a capacitive sensor responsive to the accumulation of dust. The capacitive sensor may include one or more capacitive plates integral with a heatsink. As dust collects on the capacitive plates, the capacitance increases. When a capacitance setpoint is reached, indicating the dust has reached a critical level, an alert is generated. The alerts may be received by a management console for the attention of a system administrator. Each alert may contain the identity of the server generating the alert, so that the system administrator knows which server(s) are to be removed for cleaning.
Owner:LENOVO GLOBAL TECH INT LTD
System for calibrating particulate matter measuring instruments and calibrating method of system
ActiveCN105486619AAchieve uniformityAchieve stabilityParticle suspension analysisParticulatesDust detection
The invention belongs to the technical field of dust detection, and discloses a system for calibrating particulate matter measuring instruments and a calibrating method of the system. The system comprises a compressed air processing device, a dust generator and an evenly-mixing box, wherein the compressed air processing device, the dust generator and the evenly-mixing box are sequentially communicated. A dust sample collector and a dust removal device are communicated with the lower portion of the evenly-mixing box. The evenly-mixing box comprises a sedimentation mixing chamber, a mixing section and a sample discharging section. The mixing section comprises a dust feeding pipe, a mixer and an upper transition cavity, an air diluting bin is formed between the dust feeding pipe and the mixer, a plurality of compressed air inlets are evenly formed in the portion, corresponding to the air diluting bin, of the dust feeding pipe in a communicated mode, and mixing through holes for diluting air in a non-directional mode are evenly formed in the pipe wall of the mixer. By means of the system and the calibrating method, the dust generation amount, the dilution air flow, the dust dilution concentration, the sample flow and the evenness of mixing of dust and dilution air are all effectively controlled, and therefore measuring instruments within different dust mass concentration ranges can be calibrated.
Owner:HENAN PROVINCE INST OF METROLOGY
System and method for significant dust detection and enhancement of dust images over land and ocean
InactiveUS7242803B2Enhanced signalHigh sensitivityRadiation pyrometryMaterial analysis by optical meansDust detectionDesert dust
A new processing capability for desert dust enhancement using imager data from the Sea-viewing Wide Field of View Sensor (SeaWiFS) has been developed for Naval meteorology / oceanography (MetOc) operations support. The data are captured via direct broadcast high-resolution picture transmission (HRPT) at Navy Regional Centers in Rota, Bahrain, and Yokosuka, and processed at the Naval Research Laboratory in Monterey. The raw data are calibrated, corrected for missing lines and clutter, corrected for molecular scatter contamination, and enhanced through multispectral combination to yield value added products. The processing has been automated completely such that products, generated upon receipt of data, are hosted upon a password protected website typically 60 to 90 minutes from time of initial capture. This invention summarizes the SeaWiFS instrument capabilities, the protocol followed for automated near real-time processing, a physical basis for the NRL enhancements, and specific examples of the products with extension to over-land dust enhancement as enabled by MODIS. It closes with a glimpse of the potential utility of these products from the perspective of the warfighter.
Owner:NAVY THE UNITED STATES OF AMERICA REPRESENTED BY THE SEC OF THE
Photovoltaic plate dust detecting device
InactiveCN104300900ALow running costAvoid wasting manpower and material resourcesPhotovoltaic monitoringPhotometryIlluminanceControl signal
A photovoltaic plate dust detecting device comprises a dust sensor, an irradiance sensor, a power measuring unit and a controller. The dust sensor is connected to the controller. The irradiance sensor is connected to the controller. The power measuring unit is connected to the controller. The controller is connected to the dust sensor, the irradiance sensor and the power measuring unit and is used for outputting a control signal according to the received dust quantity value, the received irradiance strength value and / or the received generating power value. According to the photovoltaic plate dust detecting device, the effect of dust on the photovoltaic generating efficiency can be shown through quantitative data, and therefore a photovoltaic plate can be cleaned in a targeted mode, waste of manpower and material resources due to frequent cleaning and the effect on the generating benefit due to decreasing of the generating efficiency caused by irregular cleaning are prevented, and the photovoltaic plate dust detecting device plays an important role in reducing the running cost of a photovoltaic power generation system and improving the generating efficiency of the photovoltaic power generation system.
Owner:STATE GRID CORP OF CHINA +1
Intelligent dirty clothes storage cabinet and intelligent wardrobe
The invention relates to the field of clothes storage and particularly relates to an intelligent dirty clothes storage cabinet. The intelligent dirty clothes storage cabinet comprises a cabinet body and an intelligent control system; a loading drawer and a storage drawer are arranged at the front part of the cabinet body; an ultraviolet sterilization device and a drying device are arranged on the top of the loading drawer; a hoisting channel is arranged at the rear part of the cabinet body and a hoisting plate is arranged in the cabinet body; a hoisting device for driving the hoisting plate to do up-down movement and horizontal movement is arranged on the top of the cabinet body; the intelligent control system comprises a processing controller, a human body induction sensor, an input device, a weight sensor, and a bacterium detector, a humidity detector and a dust detector which are arranged on the inner side of a wall of the loading drawer. When a human body gets close, a storage system is opened by automatic induction and clothes are automatically folded; the dirty and old degrees of the clothes are automatically identified, and the clothes are stored by classes by combining the classes of the clothes, so that mutual pollution between the clothes is avoided; and the clothes are convenient to find. The content of bacteria and the humid degree in the clothes can be automatically detected and the clothes are disinfected and dried when the content of the bacteria and the humid degree exceed the standards, and safe storage of the clothes is realized.
Owner:ZHEJIANG AOSHI FURNITURE
Photovoltaic power station monitoring and operation integration system
InactiveCN108322187AImprove detection efficiencyIntelligent operation and maintenance work integrationPhotovoltaic monitoringCircuit arrangementsDust detectionEngineering
The present invention discloses a photovoltaic power station monitoring and operation integration system. The technical scheme of the invention concretely comprises the steps of: detecting generationcurrents and voltages of photovoltaic cells through a Hall sensor in photovoltaic combiner boxes and transmitting the generation currents and voltages to a processor; connecting and gathering detection modules of the plurality of combiner boxes in a RS485 communication mode to perform transmission through a wireless module; determining a photovoltaic panel fault condition through a photovoltaic panel fault rapid detection location system based on an unmanned aerial vehicle; monitoring and cleaning a photovoltaic panel through a cleaning robot carrying a dust detection sensor; locating actual positions of faults through the photovoltaic panel fault rapid detection location system based on the unmanned aerial vehicle, and sending fault information through a wireless communication module; andapplying the wireless communication network to connect each system of a power station to allow operation and maintenance work to be integrated and intelligent.
Owner:TONGJI UNIV +3
Video technology based real time stockyard airborne dust detection and intelligent watering dust depositing device and method
ActiveCN108845536AExpand the scope of monitoringReduce construction costsClosed circuit television systemsProgramme control in sequence/logic controllersVideo monitoringDust detection
Owner:河北港口集团检测技术有限公司
Dust detection device and electric dust collector mounted with the same
The present invention provides a kind of dust detection device that can detect fine dust according to the different sizes of the dust, which includes: a light emitting unit (dust detection unit 230) that emits light into the air channel through which the dust flows; A light receiving unit (dust detection unit 231) that receives light from the light emitting unit (230) and outputs a signal corresponding to the amount of light received; and amplifying units (232, 233) that amplify the signal from the light receiving unit (231). The amplifying unit (232, 233) has a plurality of magnifications corresponding to the size of the dust, so that a dust detection device capable of detecting dust containing fine dust according to the size of the dust can be provided.
Owner:PANASONIC CORP
Dust detection device and dust detection method
The invention relates to a dust detection device and a dust detection method. The dust detection device comprises a light-emitting component, a detection channel, a light interception component and a control circuit, wherein the light-emitting component emits detecting light; the detection channel is arranged on a light path of the detecting light and used for enabling the detecting light to illuminate suspended dust entering the detection channel from a convection air vent of the detection channel; the optical axis of the light interception component and the optical axis of the light-emitting component form a preset angle, and the light interception component is used for receiving scatter light, being in a preset angle with the optical axis of the light-emitting component, scattered by the detecting light through the suspended dust, and generating corresponding electrical signals according to optical signals of the scatter light; the control circuit is connected with the light-emitting component and the light interception component and used for driving the light-emitting component, receiving the electrical signals sent by the light interception component, and calculating the concentration of dust in the detection channel according to the electrical signals. The dust detection device has the advantages of small size, low power consumption, low cost, good application convenience and high detection precision.
Owner:深圳市信诚志业科技有限公司
Dust detection system
ActiveUS9015897B2Efficiently indicatedCleaning filter meansSuction filtersDust detectionElectromagnetic shielding
There is provided a dust detection system for a vacuum cleaner comprising a dust separation chamber (20) of cyclone type and having a separate dustbin (30) for collecting separated dust. The dust separation chamber is adapted to provide a generally cyclonic airflow for separating dust from a dust laden air stream, and is at a bottom (25) of the dust separation chamber connected via an outlet (22) to the dustbin. The dust detection system further comprises an emitter (41) positioned to emit an electromagnetic signal into the dust separation chamber during operation of the vacuum cleaner, and a receiver (42) positioned to receive the electromagnetic signal. The inventive concept is based on an understanding that when the dustbin becomes full, dust accumulates at the bottom of the dust separation chamber, i.e. stays rotating at the bottom, since it cannot enter the dustbin. The emitter and receiver are positioned in a bottom portion (26) of the dust separation chamber and are arranged to detect dust accumulating at the bottom portion during operation of the vacuum cleaner, thereby providing an indication of the dustbin being full.
Owner:AB ELECTROLUX
Image reading apparatus and control program therefor
ActiveUS7518757B2Improve accuracyImprove detection accuracyImage enhancementImage analysisDust detectionRandom noise
There is provided an image reading apparatus that is capable increasing the detection accuracy for dust, scratches, dirt, and the like. Sixty-four lines of sampling points on a reference standard white plate are read, shading correction and averaging are carried out the read image data to suppress random noise components in the image data, the data is then stored in a sampling memory, and dust detection is carried out on the data stored in the sampling memory. Alternatively, shading correction and dust detection are carried out on image data that has been subjected to linear interpolation. It is thus possible to increase the accuracy of detection of dust, scratches, dirt, and the like while ensuring that shading correction is performed at high speed.
Owner:CANON KK
Air dust detection instrument
ActiveCN103674798AIncrease K valueHigh sensitivityParticle suspension analysisDust detectionEngineering
The invention discloses an air dust detection instrument, which comprises a detection air flow passage, an air inlet opening, an exhaust opening, a laser emitter and a light collector, wherein the air inlet opening and an exhaust opening are formed at the two sides of the detection air flow passage, the laser emitter and the light collector are relatively arranged at the head end and the tail end of the detection air flow passage, and the laser emitting end of the laser emitter and the scattering light emergent end of the light collector are respectively provided with mutually vertical polaroids. The air dust detection instrument has the advantages that the carrying is convenient, the use is easy, the principle is simple, and the like. The length of the laser passing through the detection air flow is increased, and the dust detection sensitivity is improved. In addition, the data of the detection instrument is processed by PC (personnel computer) software, so the data processing is more accurate and stronger, the real-time test data can be obtained, the continuous dust concentration change curve can be obtained, the dust concentration early warning parameters can also be conveniently set, the real-time monitoring and the early warning processing can be carried out on the air dust concentration, and the air dust detection instrument belongs to a simple and portable air dust detection instrument with great popularization values.
Owner:HEFEI BOE OPTOELECTRONICS TECH +1
Air purification device for workshop
InactiveCN103453622AQuality improvementEnhance physical fitnessSpace heating and ventilation safety systemsDispersed particle filtrationDust detectionOxygen ions
The invention discloses an air purification device for a workshop. The air purification device for the workshop comprises a dust detection device, a single-chip microcomputer, an air purification device and a negative oxygen ion generator, wherein the dust detection device is connected with the single-chip microcomputer and is used for transmitting the detected dust concentration information into the single-chip microcomputer; the single-chip microcomputer is connected with the air purification device and the negative oxygen ion generator at the same time, and is used for controlling the work of the air purification device and the negative oxygen ion generator; the dust detection device comprises an infrared diode and an image sensor; the image sensor is used for detecting the infrared light which is reflected by dust and emitted by the infrared diode, and transmitting the detected signals into the single chip microcomputer connected with the image sensor. The air purification device for the workshop comprises the air purification device and the negative oxygen ion generator, thus not only being capable of purifying the air in the workshop, but also being capable of releasing negative oxygen ions; therefore, the air purification device for the workshop improves the air quality of the workshop and enhances the physical fitness of workers.
Owner:SUZHOU KANGHUA PURIFYING SYST ENG
Image sensing apparatus and control method capable of performing dust correction
InactiveUS7636114B2Inhibition effectSuppress the influence of dust on a photographed imageTelevision system detailsColor signal processing circuitsDust detectionImage sensing
A pixel position corresponding to dust present on an image sensor and its optical system is detected from a dust detection sensed image. It is checked for a normally sensed image obtained by normal image sensing whether each pixel data is data at the pixel position corresponding to dust. Data at the pixel position corresponding to dust undergoes a correction process. An image sensing apparatus capable of suppressing the influence of dust on a sensed image even if dust attaches to the image sensor or its optical system can be realized.
Owner:CANON KK
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