158 results about "Odor source" patented technology

The invention discloses a smoke suppressing and deodorizing additive, a preparation method thereof and a modified asphalt. The smoke suppressing and deodorizing additive is composed of free radical capturing agent, metal-organic framework compounds, inorganic adsorbing materials, reaction type odor inhibitor and base materials. According to the s smoke suppressing and deodorizing additive, the free radical capturing agent has termination reaction with micromolecular free radicals to reduce micromolecular volatile gas produced by free radical reaction; the metal-organic framework compounds canefficiently selectively adsorb and reduce discharged multiring hydrocarbon sulfur-containing thiophene materials; the inorganic adsorbing materials can enhance interaction between volatile organic compounds and an asphalt matrix to reduce overall emission; the reaction type odor inhibitor reacts with mercaptan in asphalt to reduce mission of one of odor sources, namely mercaptan, as well as hydrogen sulfide. Testing results show that by adding in the smoke suppressing and deodorizing additive, the smoke volatile amount of the asphalt at 180 DEG C is reduced by 70-88%, and emission of pollutants and odor sources can be significantly reduced.

A stereoscopic electronic nose for simulating an animal olfactory organ structure is provided with two 'noses' and a 'neck' which are similar to those of a creature, sensors in the two 'nasal passages' can respectively induce the concentrations of odor molecules coming from different directions, and the 'neck' can drive the 'noses' to rotate freely, scan the spatial distribution information of the odor molecules in different directions in the ambient environment and utilize the nerve network to analyze the scanned distribution information of the odor molecules in different directions in the ambient environment so as to recognize the odor sources.

The invention provides a three-dimensional electronic nose imitating the structure and the information processing mechanism of an animal olfactory organ. The electronic nose has two noses and a neck similar to those of a creature; sensors in two nasal passages can respectively sense concentrations of odor molecules from different directions; the neck drives the noses to rotate so as to scan spatial distribution information of odor molecules at different directions of a surrounding environment; then a neural network is used to analyze the distribution information of the odor molecules at different directions of the surrounding environment so as to recognize the direction of an odor source.

Systems and methods for odor source release based on odor detection and user preference information are disclosed. According to an aspect, a method includes receiving user preference information associated with an odor. The method also includes detecting the odor. Further, the method includes releasing one or more odor sources based on the user preference information in response to detecting the odor.

The invention is applicable to the technical field of car odor detection and provides a method for assessing odor sources in a car. The method includes: preprocessing the whole car in different sealedcabins and under different conditions; collecting the gas sample in each compartment of the car after the preprocessing; using a gas chromatograph to perform substance separation on the each gas sample to obtain two paths of gas sample, processing one path with a gas chromatography and mass spectrometer to acquire material concentration-time spectrum, subjecting the other path to manual odor-intensity smelling and distinguishing, and using a smelling and distinguishing instrument to generate odor intensity-time spectrum; acquiring the time point when the odor intensity is larger than preset intensity, and searching for substances which cause the odor of the compartments and are called odorous substances from the material concentration-time spectrum on the basis of the time point. Comparedwith a subjective assessing method referencing VAD270, the man-machine-integrated method for assessing the odor sources in the car is high in assessment standard consistency, real and objective.

The invention provides a deodorization method and a deodorant, relating to the technical field of deodorization. The deodorization method comprises the steps of spraying a chemical deodorant to an odor source so as to reduce the number of odor-producing microorganisms, and feeding a microbial deodorant to the odor source sprayed with the chemical deodorant after a preset time, wherein the chemical deodorant includes one or more of thiobacteria, lactic acid bacteria, saccharomycetes and spore bacteria; and the chemical deodorant includes one or more of acid, alkali and a strong oxidant. The chemical deodorant is capable of inactivating the odor-producing microorganisms and preventing the continuous production of odor. The microbial deodorant is fed to the odor source after a preset time and is capable of transferring odor substances into the microbial deodorant, oxidizing and decomposing the odor substances and generating an environment beneficial to the survival of the odor-producing microorganisms, so that the odor reproduced by the odor-producing microorganisms can be fundamentally and thoroughly avoided. The microbial deodorant is capable of decomposing odor substances into environment-friendly products such as water and carbon dioxide and does not produce odor.

The invention relates to an attractant for grub imagoes. The attractant comprises the following components by weight: 1 to 10 of plant volatile, 10 to 70 of saccharides, and 30 to 90 parts of water. According to the invention, the plant volatile and the saccharide substance are mixed according to a certain ratio for use, information substances with greater attraction than crops are released, imago scarabs of grubs are trapped into a specific odor source to eat in a broad-spectrum and high-efficiency manner, the number of grub populations is effectively controlled and lowered, use of a chemical pesticide is greatly reduced, the attractant is green and has no pollution or residues, natural enemies and the environment are protected, and green protection and control on the grubs are achieved.

A method for comparing odors comprises: sampling odor sources and detecting primary odorants, then for each odor source, storing each of the sampled odor sources in respective primary vectors of odor descriptors that describe the primary odorants. For each source a source vector is then constructed by summing the primary vectors of the respectively detected primary odorants. Comparison between the odors is achieved by determining an angle between the source vectors, which may then be output. The method may be used in electronic noses and like equipment.

The invention discloses an odor conduction smell test instrument and a control method thereof. The odor conduction smell test instrument adopts the structure that the input interface of a main controller is connected with an experimental subject, and the output interface is connected with medical equipment; the main controller is electrically connected with allocation controllers; a gas source isconnected with two flow controllers through a purifier and a filter, wherein the first flow controller enters an odor transmission pipeline through a humidifier, and the second flow controller is connected with the allocation controllers respectively; the allocation controllers are connected with odor sources respectively; the odor sources are connected with the odor transmission pipeline; the odor transmission pipeline is connected with the experimental subject through a transmission guide pipe; and a power supply supplies power for the test instrument. The odor conduction smell test instrument has the benefits that the odor sources can be directly conveyed into the medical equipment where the experimental subject is placed and is released in a manner of being matched with the breathing of a human body, so that an accurate reflection image of the brain of a human body can be obtained. The instrument has the advantages of simple structure, high integration level, complete functions, low cost, high efficiency, high safety and reliability, long service life and simplicity and convenience in operation.

The invention relates to a method for detecting the direction of the source of three dimensional odor loaded on unmanned rotorcraft. An inertia measuring unit and a magnetometer are installed on the center of an unmanned rotorcraft, odor sensors are evenly arranged on a circumference, the center of the unmanned rotorcraft is also the center of the circumference, a particle filter frame is adopted, each particle is taken as a virtual odor source and continuously releases virtual odor packs; by comparing the odor sensor signal time delay and volatility variance caused by the odor packs with the actually measured signal time delay and volatility variance, the likelihood of each particle can be obtained; in each calculation period, the weights of particles are updated according to the likelihood, the weight of a particle is larger, if the likelihood of the particle is higher; in odor to trace the direction of the source of odor in real time, in each calculation period, the sampling is carried out for another time, the particles with too small weights are eliminated, the particles with too large weights are cracked, and the direction of the odor source is the weighted vector sum of position vectors of each particles.

The invention discloses a method for tracing the odor of an unmanned aerial vehicle based on a 3D_Z_spiral upwind algorithm. The method comprises the following steps: adopting an anemometer to measurewind direction; and combining real-time gas concentration monitored by a multi-rotor unmanned aerial vehicle with algorithm logic upwind to search odor source. Specifically, an oblique motion (Z motion) biased to the upwind direction is performed for the unmanned aerial vehicle (UAV), and enough field source concentration across the entire odor source pollution area is obtained; after flying outof the foul-smelling contaminated area, the unmanned aerial vehicle (UAV) began to do a spiral motion (Spiral) and returned to the foul-smelling contaminated area; then move in a straight line (Surge)against the wind to find the source of the stench. Unmanned aerial vehicles (UAVs) continue to repeat the above three movements, gradually approaching the current plane odor pollution sources. The UAV descends to a certain altitude (3D) when it finds what is believed to be the current planar odor source. And the descending position as a new plane tracing the origin of the starting point, repeat the above three movements, to find the source of odor. Until the UAV descends to the lowest permissible altitude and finds the source of the odor at that altitude plane, it stops moving and assumes thelocation of the source of the odor is found.

The invention relates to an aerothermodynamic environment-friendly toilet fitting and an installation method and application thereof. The toilet fitting is composed of a receiver, a processor, a solidstorage device, a liquid storage device and a drying device. The toilet fitting achieves odorlessness by using an aerothermodynamic principle, wherein when no person goes to the toilet, an exhaust draught fan is adopted for exhausting a small amount of air in each cavity of the toilet fitting, so that an odor source is controlled uniaxially; after the person goes to the toilet, a waste treatmentbutton is triggered, a hot air flow goes downward, which has a downward guiding injection function on the air at the upper portion of a lower conical port of a receiving guider of a receiver, it is also achieved that the odor source is controlled uniaxially, the odorless requirement is met, the experience of the person going to the toilet is good, solid residues, liquids and other organic fertilizers can be generated periodically, in addition, the construction or transformation cost of the toilet fitting is low, cleaning and maintenance are facilitated, the power consumption is small, and absolute 'water-free toilet fitting' can be achieved except for a small amount of water necessary for periodical cleaning.

The invention provides a pipeline deodorizing and cleaning effervescent tablet and a preparation method thereof. The raw materials for preparing the effervescent tablet include a deodorant, a foamingagent, a lubricant, a surfactant and a filler, wherein the deodorant is mainly used for eliminating odor-causing microorganisms and decomposing odorous substances and is mainly prepared from sodium dichloro isocyanurate, and the sodium dichloro isocyanurate has the advantages of having strong oxidization and chlorination properties, being safe, stable in chemical property, small in irritation, simple, small in dosage and long in lasting effect. Under the condition of the concentration of 20 ppm, a variety of bacteria, algae, fungi, germs and the like can be quickly killed. The deodorizing andcleaning mechanism is that sodium dichloro isocyanurate slowly releases hypochlorous acid when being in contact with water, changes the cell membrane permeability of odorous microorganisms and denatures proteins, enzymes and DNA cannot be synthetized properly, thus odor sources are rapidly eliminated, and its extremely strong oxidization property causes decomposition to produce sulfides and the like.

The invention discloses a microbe lavatory deodorant comprising photosynthetic bacteria, lactobacilli, yeasts, an essence, lactic acid and acetic acid. The microbes are mixed and fermented in a fermentation tank, and the essence and the organic acids are added to the fermented material, such that the deodorant is obtained. The photosynthetic bacteria are no less than 1*10<7>/ml, the lactobacilli are no less than 1.5*10<7>/ml, the yeasts are no less than 1*10<6>/ml, the volume percentage of the essence is 0.01 to 0.05%, and the weight percentage of the total amount of lactic acid and acetic acid is no less than 2%. The microbe lavatory deodorant provided by the invention is characterized in low cost and simple preparation technology. With the deodorant, odor substances in lavatories can be rapidly removed. The deodorant brings no harm to human bodies, and assists in environment protection. When in use, the deodorant is placed in an aerosol used for spraying. With the deodorant, existing odors can be rapidly absorbed, odor sources can be removed, and an air-refreshing effect is long-lasting.

The invention relates to a detection method for indicating the direction of an odor source in a three-dimensional environment. According to the method, odor sensors are mounted on the peak of a regular polyhedron, so that the sensors are uniformly distributed on one spherical surface. The method for solving the direction of the source of an odor pack comprises the following steps: detecting the odor pack; monitoring concentration values output by the sensors, judging that a sensor detects the odor pack if a concentration value is higher than a set threshold, taking the sensor as the first sensor, and after a second sensor and a third sensor detect the odor pack, recording the time difference in detecting the odor pack; judging if a same pack condition is met; calculating the three-dimensional source direction of the odor pack according to the time difference in detecting the odor pack; stipulating a vector of a point on the spherical surface directing to the center of sphere as the source direction of the odor pack, calculating the source direction of the odor pack, designating a point needing calculating the direction vector corresponding to the spherical surface as a target point, and solving the coordinates of the target point. The detection method has the characteristics of high precision, no need of knowing wind information and the like.

The invention discloses a biological waste fungicide and a preparation method thereof. The biological waste fungicide comprises a fungicide component and an extract component, wherein the fungicide component contains the following raw materials in percentages by weight: 15-40% of lactic acid bacteria, 1-10% of actinomycetes, 2-10% of bacillus, 8-15% of photosynthetic bacteria and 9-14% of enterococcus faecalis; the extract component contains the following raw materials in percentages by weight: 25-35% of a natural plant extract, 15-26% of lactic acid, 8-15% of citric acid and 6-18% of sodium benzoate. By using the synergistic effect of compound microorganisms, harmful substances and an odor source in biological wastes are effectively decomposed and absorbed to achieve the targets of sterilization and deodorization; and a few of macromolecules are degraded into micromolecules through anaerobic fermentation reaction of the microorganisms such as the lactic acid bacteria, thereby completing the biological degradation process.

The invention discloses an efficient deodorant. The deodorant comprises the following materials by weight: 5-8 parts of ferrous sulfate, 0.2-0.6 part of ascorbic acid, 2-4 parts of sulfamic acid, 3-6 parts of sodium dodecyl benzene sulfonate, 2-4 parts of sodium tripolyphosphate and 80-100 parts of deionized water. The deodorant has the following beneficial effects: the deodorant has simple production process, convenient raw material sources, low price, no toxicity and low corrosivity, removes urine dirt, tea stains and odor quickly, has good odor removal effect, can eradicate the odor sources, has 100% odor removal rate, has wide applicability, is widely applied to cleaning and odor removing of the toilets in the families, hospitals and hotels and has simple use method; and the deodorant not only solves the problem of air pollution but also saves vast energy.

The invention discloses deodorizing adhesives and a method for preparing the same. The deodorizing adhesives are deodorant with broad spectrum property which is prepared by deodorizing cenobium, polyacrylamide, polyacrylamide sodium, plant fibers, water and so on. The deodorizing adhesives are characterized by strong odor absorption capacity, strong water retention capacity, good activity of deodorizing microorganism, stable structure and so on, is suitable for covering open odor sources such as landfill waste sites, stool dumping sites and so on so as to reduce odor diffusion in the sources, and is a feasible odor processing means. The deodorizing adhesives and the method are characterized by low cost, strong maneuverability and so on.

The invention discloses a method for integral deodorization and sewage treatment of municipal sewage plants. The method comprises the following steps of: erecting a half-sealed gas collection area around or above an odor source, or using a former half-sealed building, and collecting generated odor; and conveying the odor into a submersible jet type aerator through a conveying pipeline, uniformly enabling the mixed odor and sewage to enter an aeration basin through the submersible jet type aerator, and removing fusty matters through adsorption, dissolving and biological degradation. With the adoption of the manner, the method for the integral deodorization and sewage treatment of the municipal sewage plants can be used for simplifying the design, the operation and the management of a deodorization facility, reducing the investment cost and the operation cost, and effectively treating various fusty matters. Furthermore, the method for the integral deodorization and sewage treatment of the municipal sewage plants has a good treatment effect and is very applicable to deodorization updating improvement of the built sewage plants and construction of an integrated deodorization facility of newly built sewage plants.

The invention discloses a deodorant, which comprises the following raw materials in parts by weight: 15-20 parts of citronella extract, 15-20 parts of ethanol, 10-15 parts of polyethylene glycol, 7-10 parts of eucalyptus oil, mandala 5-10 parts of Luo extract, 5-10 parts of citric acid, 1-2 parts of lauryl methacrylate, 0.5-1 part of chitosan, 0.2-0.5 part of dodecyltrimethylammonium bromide. The deodorant of the present invention has the advantages of simple composition, good deodorizing performance and long-term deodorizing technical effect, uses pure natural vegetable oil to extract essential oil to purify air, decomposes and removes odor, and can be used in public toilets, garbage stations and farms , Sewage treatment plants and other large-area odor sources deodorization.

The objective of the present invention is to provide an air purifier and method thereof, capable of clearing away mephitis and air pollution substance generated by an odor source. The air purifying method includes an oxidation process, an acidic and alkaline cleaning process, and is capable of simultaneously clearing away basic group, acidic group and neutral group malodorous substance. In the oxidation process, a water solution containing oxidant is contacted with the malodorous gas to oxygenize and decompose the malodorous substance; in the acidic and alkaline cleaning process, a water solution containing acidic or alkaline cleaning agent is contacted with the malodorous gas, and the cleaning agent absorbs the malodorous substance to chemically neutralize. By means of a chlorine dioxidegenerator, the chlorine dioxide generated by the chlorine dioxide generator is mixed with substance of the malodorous gas in a rapid oxidation device, wherein the substance may be cleared away through oxidative decomposition; the chlorine dioxide is contacted with the alkaline malodorous substance to perform acidic cleaning in an acidic cleaning reaction chamber; the sodium hydrate generated by the chlorine dioxide generator is contacted with the acidic malodorous substance to perform alkaline cleaning and neutralize the acidic cleaning agent so as to prevent residual deodorant from becoming another pollution source.

The invention discloses a plant type sterilization and flavouring agent which comprises dimethyl benzene sulfonic acid sodium, ricinoleic acid zinc salt, oxygen alkyl succinic acid sodium, laurel amide propyl oxidation ammonium, sodium nitrate, citric acid and sodium hydroxide. The plant type sterilization and flavouring agent has the advantages of being good in fast-acting property and long in lasting period, is different from conventional covering type deodorization, can act on an odor source and odor molecules in air and conduct thorough radical deodorization and can be used for multiple fields such as urban environmental sanitation including a garbage transfer station, a garbage refuse landfill, a garbage incineration station, a toilet and the like, an environmental protection project including a sewage treatment station, a large sewage project treatment site and the like and livestock breeding including a pig farm, a chicken farm, a duck farm, a cattle farm and the like and public places such as a bus, a shop, a hospital and a garage.