Patents by Inventor Dawen Sun
Dawen Sun has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Publication number: 20220369657Abstract: A system for preserving red meat by plasma active water (PAW) vacuum packaging includes a solution mixing tank, a plasma treatment chamber, an atomization spray module, a conveyor bell, a water circulation module, and a vacuum packaging module. The solution mixing tank, the plasma treatment chamber, the atomization spray module, and the water circulation module are sequentially connected through pipes. The atomization sprav module is configured to spray PAW onto the red meat on the conveyor belt, and the vacuum packaging module is configured to vacuum-package the red meat. Utilizing PAW improves the antibacterial ability of vacuum packaging while enhancing the color stability of red meat, greatly extending the shelf life of red meat, thereby preserving red meat in a green and economical way.Type: ApplicationFiled: September 30, 2020Publication date: November 24, 2022Inventors: Dawen Sun, Junhu Cheng, Yaqi Chen, Zhong Han, Yijie Wang
-
Patent number: 11478108Abstract: An intelligent identification cooking system of an oven including an image acquisition system, an image analysis and processing system, and a temperature measurement and monitoring system. The image acquisition system is connected to the image analysis and processing system and an intelligent menu control system is connected to the image analysis and processing system and the temperature measurement and monitoring system respectively. Through computer vision and identification technology and temperature sensing technology, parameters such as the type, thickness, size, fattiness and temperature are identified and automatically matched and calibrated to a cooking menu. A control program is output to a control terminal and executed.Type: GrantFiled: October 25, 2018Date of Patent: October 25, 2022Assignee: SOUTH CHINA UNIVERSITY OF TECHNOLOGYInventors: Dawen Sun, Zhong Han, Xucong Yu, Hongbin Pu, Zhiwei Zhu, Qijun Wang
-
Patent number: 11448592Abstract: The invention discloses a method for rapidly predicting freezer storage time of frozen pork based on reflectance ratio of two near-infrared bands. Firstly, the near-infrared spectra information of the frozen pork is obtained by a near-infrared spectrometer, and the near-infrared spectra are analyzed to obtain center values of bands centered on 1500 nm, 1350 nm and 1890 nm characteristic peaks. The ratio thereof is treated as a eigenvector, which is substituted into the characteristic exponential function based on the eigenvector and freezer storage time to calculate the freezer storage time of frozen pork. By near-infrared spectroscopy technology, the invention directly detects the freezer storage time of pork in a frozen state, significantly reduces the time required by the conventional method, and has the advantages of being fast and non-destructive.Type: GrantFiled: September 20, 2017Date of Patent: September 20, 2022Assignee: SOUTH CHINA UNIVERSITY OF TECHNOLOGYInventors: Dawen Sun, Weiwei Cheng, Hongbin Pu, Zhiwei Zhu, Zhong Han
-
Patent number: 11330824Abstract: Disclosed herein is a multi-temperature-region ice-temperature fresh keeping storehouse and a fresh keeping method for bergamot pears that includes a precooling region, a feeding and discharging channel, a cooling region, an ice temperature detection device, a grading device, a conveyer belt control device, an automatic storage device, and a temperature rise and fall buffering channel. The cooling region includes four freezers, with temperatures ranging from 0° C.-?3° C. The four freezers are connected level by level according to a temperature reduction rule. The present disclosure implements multi-temperature-region graded storage of bergamot pears according to the value of an ice point temperature of the bergamot pears, so that they are always stored close to the ice point temperature without freezing, thereby preventing freeze injury, and prolonging shelf life.Type: GrantFiled: November 23, 2017Date of Patent: May 17, 2022Assignee: SOUTH CHINA UNIVERSITY OF TECHNOLOGYInventors: Dawen Sun, Tingtiao Pan, Hongbin Pu, Zhiwei Zhu, Zhong Han
-
Publication number: 20210186262Abstract: intelligent identification cooking system of an oven including an image acquisition system, an image analysis and processing system, and a temperature measurement and monitoring system The image acquisition system is connected to the image analysis and processing system and an intelligent menu control system is connected to the image analysis and processing system and the temperature measurement and monitoring system respectively. Through computer vision and identification technology and temperature sensing technology, parameters such as the type, thickness, size, fattiness and temperature are identified and automatically matched and calibrated to a cooking menu.Type: ApplicationFiled: October 25, 2018Publication date: June 24, 2021Inventors: Dawen SUN, Zhong HAN, Xucong YU, Hongbin PU, Zhiwei ZHU, Qijun WANG
-
Patent number: 10588181Abstract: The present disclosure provides a microwave oven, and a thawing control method and device for the same. The method includes: acquiring a total period T of thawing according to a weight x of food in the microwave oven, wherein the total period T of thawing satisfies: T=K(x/100) seconds, where, 20 seconds/g?K?120 seconds/g; and controlling the microwave generator to start, and thawing the food according to the total period T of thawing. With the method, the thawed food is more nutritious, healthier, and easier to cut, and has the low temperature difference, without a cooked discoloration phenomenon.Type: GrantFiled: March 24, 2017Date of Patent: March 10, 2020Assignees: GUANGDONG MIDEA KITCHEN APPLIANCES MANUFACTURING CO., LTD., MIDEA GROUP CO., LTD.Inventors: Xiangwei Tang, Yuze Jia, Yan Li, Chun Luan, Dawen Sun, Zhong Han, Xinan Zeng
-
Publication number: 20190335775Abstract: A method for the preservation of fresh plants by vacuum pre-cooling synchronously combined with modified atmosphere technique includes: (1) screening field-picked fresh plants, and selecting individuals with uniform size, consistent maturity, and no obvious defects; (2) placing the screened individuals in a vacuum pre-cooler for pre-cooling; (3) after the plants are pre-cooled to the final temperature, the device automatically shuts down the refrigerator and vacuum pump, and the pre-configured mixed gas is introduced from the intake air inlet into the vacuum chamber for re-pressing; and (4) taking the re-pressed fresh plants out of the pre-cooler, and performing modified atmosphere packaging and refrigerating.Type: ApplicationFiled: December 8, 2016Publication date: November 7, 2019Inventors: Dawen Sun, Xinwei Wu, Zhiwei Zhu
-
Patent number: 10415881Abstract: The present invention discloses a method for freeze-drying drug liposomes powder assisted by a variable-frequency alternating-current electric field, which includes the following steps: (1) preparing a drug-liposome suspension sample; (2) dehydrating the sample under a 1-10 kHz, 3-10 kV high-voltage alternating current; (3) freezing and drying the sample treated in step (2) at ?20° C. to ?40° C., under a 10-25 kHz, 0.2-1 kV high-voltage alternating current, until completion of the freezing process; and (4) heating and drying the sample in a vacuum until completion of sublimation and desorption, and obtaining the drug liposomes freeze-dried powder. The present invention not only greatly shortens a freezing and drying time, but also controls a size of nuclei and ice crystals, further ensuring a quality of the freeze-dried powder.Type: GrantFiled: December 29, 2015Date of Patent: September 17, 2019Assignee: South China University of TechnologyInventors: Dawen Sun, Lina Cheng, Zhiwei Zhu, Xin'an Zeng, Qijun Wang, Zi Zhang
-
Patent number: 10397990Abstract: The present disclosure provides a microwave oven, and a thawing control method and device for the same. The method includes: detecting temperatures of a plurality of temperature detecting points on food in the microwave oven; and controlling the microwave generator to start, and thawing the food according to the temperatures of the plurality of temperature detecting points on the food. With the method, the thawed food is more nutritious, healthier, and easier to cut, and has the low temperature difference, without a cooked discoloration phenomenon.Type: GrantFiled: March 24, 2017Date of Patent: August 27, 2019Assignees: GUANGDONG MIDEA KITCHEN APPLIANCES MANUFACTURING CO., LTD., MIDEA GROUP CO., LTD.Inventors: Xiangwei Tang, Yuze Jia, Yan Li, Chun Luan, Dawen Sun, Zhong Han, Xinan Zeng
-
Publication number: 20190178792Abstract: The invention discloses a method for rapidly predicting freezer storage time of frozen pork based on reflectance ratio of two near-infrared bands. Firstly, the near-infrared spectra information of the frozen pork is obtained by a near-infrared spectrometer, and the near-infrared spectra are analyzed to obtain center values of bands centered on 1500 nm, 1350 nm and 1890 nm characteristic peaks. The ratio thereof is treated as a eigenvector, which is substituted into the characteristic exponential function based on the eigenvector and freezer storage time to calculate the freezer storage time of frozen pork. By near-infrared spectroscopy technology, the invention directly detects the freezer storage time of pork in a frozen state, significantly reduces the time required by the conventional method, and has the advantages of being fast and non-destructive.Type: ApplicationFiled: September 20, 2017Publication date: June 13, 2019Applicant: SOUTH CHINA UNIVERSITY OF TECHNOLOGYInventors: Dawen SUN, Weiwei CHENG, Hongbin PU, Zhiwei ZHU, Zhong HAN
-
Publication number: 20190166860Abstract: Disclosed herein is a multi-temperature-region ice-temperature fresh keeping storehouse and a fresh keeping method for bergamot pears that includes a precooling region, a feeding and discharging channel, a cooling region, an ice temperature detection device, a grading device, a conveyer belt control device, an automatic storage device, and a temperature rise and fall buffering channel. The cooling region includes four freezers, with temperatures ranging from 0° C.-?3° C. The four freezers are connected level by level according to a temperature reduction rule. The present disclosure implements multi-temperature-region graded storage of bergamot pears according to the value of an ice point temperature of the bergamot pears, so that they are always stored close to the ice point temperature without freezing, thereby preventing freeze injury, and prolonging shelf life.Type: ApplicationFiled: November 23, 2017Publication date: June 6, 2019Applicant: SOUTH CHINA UNIVERSITY OF TECHNOLOGYInventors: Dawen SUN, Tingtiao PAN, Hongbin PU, Zhiwei ZHU, Zhong HAN
-
Publication number: 20180017324Abstract: The present invention discloses a method for freeze-drying drug liposomes powder assisted by a variable-frequency alternating-current electric field, which includes the following steps: (1) preparing a drug-liposome suspension sample; (2) dehydrating the sample under a 1-10 kHz, 3-10 kV high-voltage alternating current; (3) freezing and drying the sample treated in step (2) at ?20° C. to ?40° C., under a 10-25 kHz, 0.2-1 kV high-voltage alternating current, until completion of the freezing process; and (4) heating and drying the sample in a vacuum until completion of sublimation and desorption, and obtaining the drug liposomes freeze-dried powder. The present invention not only greatly shortens a freezing and drying time, but also controls a size of nuclei and ice crystals, further ensuring a quality of the freeze-dried powder.Type: ApplicationFiled: December 29, 2015Publication date: January 18, 2018Inventors: Dawen Sun, Lina Cheng, Zhiwei Zhu, Xin'an Zeng, Qijun Wang, Zi Zhang
-
Publication number: 20170280518Abstract: The present disclosure provides a microwave oven, and a thawing control method and device for the same. The method includes: S1, receiving a thawing instruction; S2, starting a thawing; and S3, controlling a thawing condition, to maintain a temperature of food in the microwave oven in ?3° C.˜0° C. With the method, by taking temperatures in the range of ?3° C.˜0° C. as an optimal temperature at thawing endpoint for thawing the food, the thawed food is more nutritious, healthier, and easier to cut, and has the low temperature difference, without a cooked discoloration phenomenon.Type: ApplicationFiled: September 25, 2015Publication date: September 28, 2017Inventors: Xiangwei TANG, Yuze JIA, Yan LI, Chun LUAN, Dawen SUN, Zhong HAN, Xinan ZENG
-
Publication number: 20170202060Abstract: The present disclosure provides a microwave oven, and a thawing control method and device for the same. The method includes: acquiring a total period T of thawing according to a weight x of food in the microwave oven, wherein the total period T of thawing satisfies: T=K(x/100) seconds, where, 20 seconds/g?K?120 seconds/g; and controlling the microwave generator to start, and thawing the food according to the total period T of thawing. With the method, the thawed food is more nutritious, healthier, and easier to cut, and has the low temperature difference, without a cooked discoloration phenomenon.Type: ApplicationFiled: March 24, 2017Publication date: July 13, 2017Inventors: Xiangwei TANG, Yuze JIA, Yan LI, Chun LUAN, Dawen SUN, Zhong HAN, Xinan ZENG
-
Publication number: 20170196050Abstract: The present disclosure provides a microwave oven, and a thawing control method and device for the same. The method includes: detecting temperatures of a plurality of temperature detecting points on food in the microwave oven; and controlling the microwave generator to start, and thawing the food according to the temperatures of the plurality of temperature detecting points on the food. With the method, the thawed food is more nutritious, healthier, and easier to cut, and has the low temperature difference, without a cooked discoloration phenomenon.Type: ApplicationFiled: March 24, 2017Publication date: July 6, 2017Inventors: Xiangwei TANG, Yuze JIA, Yan LI, Chun LUAN, Dawen SUN, Zhong HAN, Xinan ZENG
-
Patent number: 9497976Abstract: A method for improving frozen fish fillets treated by way of a salt-water immersion process includes the following steps: pretreating raw fish to obtain fish fillets; precooling the fish fillets; stacking the precooled fish fillets to obtain a fish fillet stack; freezing the fish fillet stack by using a salt-water immersion process, and performing power-variable ultrasonic wave treatment; and feeding the fish fillets into a cold storage, and performing freezing storage at minus 18 degrees centigrade. The power-variable ultrasonic wave treatment includes: firstly treating for 5 to 10 min under the power of 800 to 600 W, and then changing the power to 200 to 600 W for treating for 5 to 15 min. The freezing time of fish flesh is shortened, and formed ice crystals are fine and uniform, thereby preventing the damage of the formed ice crystals to cell walls.Type: GrantFiled: December 20, 2013Date of Patent: November 22, 2016Assignee: SOUTH CHINA UNIVERSITY OF TECHNOLOGYInventors: Dawen Sun, Fen Hu, Xin'an Zeng, Qijun Wang, Wenhong Gao
-
Publication number: 20160050945Abstract: A method for improving frozen fish fillets treated by way of a salt-water immersion process includes the following steps: pretreating raw fish to obtain fish fillets; precooling the fish fillets; stacking the precooled fish fillets to obtain a fish fillet stack; freezing the fish fillet stack by using a salt-water immersion process, and performing power-variable ultrasonic wave treatment; and feeding the fish fillets into a cold storage, and performing freezing storage at minus 18 degrees centigrade. The power-variable ultrasonic wave treatment includes: firstly treating for 5 to 10 min under the power of 800 to 600 W, and then changing the power to 200 to 600 W for treating for 5 to 15 min. The freezing time of fish flesh is shortened, and formed ice crystals are fine and uniform, thereby preventing the damage of the formed ice crystals to cell walls.Type: ApplicationFiled: December 20, 2013Publication date: February 25, 2016Inventors: Dawen SUN, Fen HU, Xin'an ZENG, Qijun WANG, Wenhong GAO
-
Patent number: 9200238Abstract: A method of ice-crystal wall-breaking extraction of the pomelo peel essencial oil, including: first selecting a fresh pomelo, peeling off the outmost oil cell layer with a peeler, and collecting the cortex that is 1.5-2.5 mm thick; slowly freezing the pomelo peel oil cell layer at ?15° C. to ?30° C. to form ice crystal; breaking the pomelo peel ice crystal with a breaker; thawing the broken ice crystal, and then squeezing with a screw squeezer to obtain a squeezed mixed liquid; adding 3-4% by mass of the table salt to the squeezed mixed liquid, and standing to stratify at reduced pressure, thereby obtaining an oil-water mixture; distilling the mixed liquid at reduced pressure, and collecting the distillate to obtain an oil-water mixture that undergoes natural stratification; discarding the water layer, thereby obtaining the pomelo peel essential oil.Type: GrantFiled: December 18, 2012Date of Patent: December 1, 2015Assignee: SOUTH CHINA UNIVERSITY OF TECHNOLOGYInventors: Dawen Sun, Xin'an Zeng, Zhong Han, Zhongyue Xu, Rong Fan
-
Publication number: 20150073161Abstract: A method of ice-crystal wall-breaking extraction of the pomelo peel essencial oil, including: first selecting a fresh pomelo, peeling off the outmost oil cell layer with a peeler, and collecting the cortex that is 1.5-2.5 mm thick; slowly freezing the pomelo peel oil cell layer at ?15° C. to ?30° C. to form ice crystal; breaking the pomelo peel ice crystal with a breaker; thawing the broken ice crystal, and then squeezing with a screw squeezer to obtain a squeezed mixed liquid; adding 3-4% by mass of the table salt to the squeezed mixed liquid, and standing to stratify at reduced pressure, thereby obtaining an oil-water mixture; distilling the mixed liquid at reduced pressure, and collecting the distillate to obtain an oil-water mixture that undergoes natural stratification; discarding the water layer, thereby obtaining the pomelo peel essential oil.Type: ApplicationFiled: December 18, 2012Publication date: March 12, 2015Applicant: SOUTH CHINA UNIVERSITY OF TECHNOLOGYInventors: Dawen Sun, Xin'an Zeng, Zhong Han, Zhongyue Xu, Rong Fan