Patents
Literature
Patsnap Copilot is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Patsnap Copilot

285 results about "Olfaction" patented technology

Olfaction is a chemoreception that forms the sense of smell. Olfaction has many purposes, such as the detection of hazards, pheromones, and food. It integrates with other senses to form the sense of flavor.

Method and device for detecting freshness of fish based on olfaction visualization

The invention discloses a method and a device for detecting the freshness of fish based on olfaction visualization, which is characterized in that a computer is connected with a constant temperature control room and a scanner; a visual gas sensor array, the scanner, a reaction room and a sample room are arranged inside the constant temperature control room; detected gas diffused from a detected fish sample is in contact with the visual gas sensor array; the detected gas reacts with a porphyrins sensor, a pH indicator sensor or a solvation chromotropic dye sensor arranged in the visual gas sensor array; images before and after the reaction are collected by the scanner and input into the computer; and the freshness of the detected fish sample is determined according to the correlation between the color change of the three sensors and the variety and the concentration of the detected gas. The invention can ensure that the extraction quantity of characteristic values is reduced by determining the selection of the sensor type and the characteristic values; the synthesis course is simple, and the use quantity of the sensors is less; the gas can be fully contact with the sensors; the detection by human eyes can be utilized; and the use of the device is simple and convenient; the detection time only needs 3 to 5 minutes.
Owner:JIANGSU UNIV

Built-in bionic smell recognition method and device

The invention relates to an embedded bionic olfaction smell recognition method and a device, for simulating the olfactory function of humans/animals, recognizing and analyzing the volatile gas having mixed multiple components. The embedded bionic olfaction smell recognition method comprises: (1) using an array sensor to test known smells as much as possible, to obtain a response mode for each smell, thereby establishing an information database of known smells; (2) processing pretreatment on the object smell information detected by the sensor array to realize drift compensation, information compression and noise filter; (3) processing post treatment on the smell information after pretreatment, to extract the characteristics of the object smell information, reduce measurement spatial dimension and extract the information relative to mode recognition; (4) classifying the smell information of the object smell via characteristics; (5) comparing the obtained characteristic classes of the object smell with the known smell characteristic information in the database to provide a recognition result. The invention can recognize different smells, to resolve the selectivity problem of prior single gas sensor. The analyzing device has wide smell map sensitive recognition range.
Owner:GUANGDONG UNIV OF TECH +1

Olfactory analog instrument and qualitative, quantitative and simultaneous analysis method of various gases

The invention relates to an olfactory analog instrument and a qualitative, quantitative and simultaneous analysis method of various gases, and has the following characteristics that: firstly, the instrument comprises a test box, headspace gas generating devices, a computer and a clean air bottle; secondly, the constant temperatures of a gas sensor array workroom, a sample to be detected and a headspace volatile gas are 55+-0.1 DEG C, heating but no refrigerating is carried out in the process at constant temperature, and the volume of the headspace volatile gas is 180 milliliters; thirdly, gas headspace sampling is carried out automatically within five seconds by a micro-vacuum pump, a magnetic valve, a throttle valve, a sample injector, an automatic sample lifting device of the test box and the computer; fourthly, the hole of the sample injector is directly communicated with the air inlet hole of the gas sensor array workroom; fifthly, the qualitative, quantitative and simultaneous analysis method of various gases is realized by a structurized neural network module. The olfactory analog instrument is provided with six headspace gas generating devices capable of measuring six samples within one hour, thereby having the advantages of high automatic degree, simple and convenient operation and low test cost.
Owner:EAST CHINA UNIV OF SCI & TECH

Olfactory analog instrument and on-site analysis method for odor grade of specific substance

The invention provides an olfactory analog instrument and an on-site analysis method for the odor grade of a specific substance. The invention has the following characteristics: 1, a gas sensor array constant temperature operation room, a computer and an autoinjection system are integrated in a test box; 2, utilization of a sample bottle with a volume of 250 ml and 25 ml of a to-be-tested sample enables a gas-liquid ratio to be 9: 1; 3, parallel resistance wires respectively wind in a semi-circle manner to generate 45-W power, so the sample and headspace volatilized gas are heated to a temperature of 80 DEG C in only 8 min and maintained at the temperature for 30 min; 4, 25 ml of an aqueous ethanol solution with a concentration of 100 ppm is used to generate standard reference gas in the sample bottle with a volume of 250 ml, and correction on gas sensors are carried out based on the generated standard reference gas; 5, headspace sampling flow is 500 ml / min, sampling time is 30 s, and gas sensor response signals undergo lowpass filtering and dimensionality reduction pretreatment; and 6, a database is established, and the olfactory analog instrument carries out on-site detection and grade prediction and identification on the odor of specific substances consisting of an adhesive, petroleum wax, leather, glycerin and edible vegetable oil.
Owner:EAST CHINA UNIV OF SCI & TECH

Pungent traditional Chinese medicine odor fingerprint map construction system and method based on bionic olfaction

The invention discloses pungent traditional Chinese medicine odor fingerprint map construction system and method based on bionic olfaction. The pungent traditional Chinese medicine odor fingerprint map construction system based on bionic olfaction comprises a sensor array (2), a signal modulation module (3), a digital analog conversion circuit (4) and a computer information processing system (5), wherein the sensor array (2) is arranged on the position which can detect the odor of pungent traditional Chinese medicines, the input end of the signal modulation module (3) is connected with the output end of the sensor array (2), the output end of the signal modulation module (3) is connected with the input end of the digital analog conversion circuit (4), and the output end of the digital analog conversion circuit (4) is connected with the computer information processing system (5). The pungent traditional Chinese medicine odor fingerprint map construction system based on bionic olfaction has the advantages of simple structure, low cost and objective and reliable determination result. The pungent traditional Chinese medicine odor fingerprint map construction method based on bionic olfaction is simple and convenient.
Owner:GUANGDONG UNIV OF TECH

Traditional Chinese herb odor discriminate method based on bionic olfaction and its device

The invention relates to a traditional Chinese medicine material odor distinguishing method based on a simulating olfaction and a device thereof. The distinguishing method of the invention includes the following steps: 1) an odor tested object of traditional Chinese medicine material samples is prepared; 2) the odor fingerprint of the simulating olfaction method is established; 3) the odor fingerprint is standardized; 4) the odor fingerprint of the traditional Chinese medicine materials to be tested and the standard odor fingerprint are compared and a distinguishing result is obtained. The distinguishing device of the invention comprises an automatic injector, a metal oxidizing gas sensor array, a weak signal conditioning circuit, an analog-to-digital conversion circuit, a computer for information process and a monitor, wherein, the output end of the automatic injector is connected with the input end of the metal oxidizing gas sensor array; the output end of the metal oxidizing gas sensor array is connected with the input end of the weak signal conditioning circuit, the output end of the weak signal conditioning circuit is connected with the input end of the analog-to-digital conversion circuit, the output end of the analog-to-digital conversion circuit is connected with the input end of the computer for information process, and the output end is connected with the monitor. The traditional Chinese medicine material odor distinguishing method and the device thereof conform to the traditional medicine theoretical practicable method, and are convenient and practical.
Owner:GUANGDONG UNIV OF TECH

Intelligent judgment method for fruit freshness based on coordination of visual information and olfactory information

The invention discloses an intelligent judgment method for fruit freshness based on coordination of visual information and olfactory information, and belongs to the technical field of non-destructive testing of foods and agricultural products. The intelligent judgment method comprises the following steps: using a computer vision system to monitor the change of surface characteristics of a fruit; using an olfactory information imaging system to monitor the change of smell of the fruit; establishing a relationship between fruit appearance information, such as surface color and texture, and each of fruit smell characteristic information and fresh freshness at the same time; simulating a human identification method; and performing intelligent judgment on the freshness of fruits at a storage stage based on visual information, olfactory information, in particular coordination of the visual information and the olfactory information. The intelligent judgment method adopts the judgment process not destructive to a detection object, has higher detection accuracy and reliability relative to the single visual or olfactory detection method, can perform intelligent management on the fruits according to the freshness in the storage process, can effectively reduce the post-harvest loss of the fruits, and achieves agricultural income increase.
Owner:JIANGSU UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products