Patents by Inventor Weiping Zhu
Weiping Zhu 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).
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Publication number: 20230310333Abstract: A mesoporous silica nanoparticle controlled release system, a preparation method thereof and an application thereof, and specifically provides a mesoporous silica nanomaterial that can be used for controlled release is disclosed. The mesoporous silica nanomaterial that can be used for controlled release comprises a mesoporous silica nanoparticle functionalized by means of a polyhydroxy compound and a nanoparticle plugging agent functionalized by means of a phenylboronic acid compound. When substrate concentration is relatively low, the nanomaterial achieves “zero early release”; when substrate concentration is relatively high, mesoporous pores blocked by the plugging agent are opened and active ingredients are released. The nanomaterial can be loaded into microneedles and microneedle array patches used to treat diabetes or to control blood sugar levels in patients.Type: ApplicationFiled: August 23, 2021Publication date: October 5, 2023Inventors: Weiping ZHU, Yun FU, Yufang XU, Xuhong QIAN
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Publication number: 20230236150Abstract: A trace detection device including: an ion mobility tube ; a sampling gas path module ; a sample injection gas path module configured to introduce a sample carrier gas containing a sample collected by the sampling gas path module toward the ion mobility tube; and a gas chromatography apparatus capable of pre-separating the sample carrier gas, so as to form a pre-separated sample carrier gas; wherein the sample injection gas path module is further configured to be capable of switching between a first mode and a second mode, in the first mode, the sample injection gas path module introduces the sample carrier gas into the ion mobility tube; and in the second mode, the sample injection gas path module introduces the sample carrier gas into the gas chromatography apparatus to pre-separate the sample carrier gas, and the pre-separated sample carrier gas is introduced into the ion mobility tube.Type: ApplicationFiled: May 14, 2021Publication date: July 27, 2023Inventors: Qingjun ZHANG, Yuanjing LI, Zhiqiang CHEN, Jianmin LI, Weiping ZHU, Qiufeng MA, Biao CAO, Lili YAN, Ge LI, Nei YANG
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Publication number: 20230236093Abstract: Provided are an odor sniffing device (11) and a vehicle-mounted security inspection apparatus for a container (1). The odor sniffing device (11) includes a primary sampling front end (116), which has a vent adapter (116-1) having a shape matching with a vent of the ventilator of the container, so that when the primary sampling front end (116) fits with the ventilator, the vent adapter (116-1) and the vent generally cooperate to achieve fluid communication. The vehicle-mounted security inspection apparatus (1) may perform imaging inspection and chemical inspection simultaneously.Type: ApplicationFiled: June 7, 2021Publication date: July 27, 2023Inventors: Qingjun ZHANG, Yuanjing LI, Zhiqiang CHEN, Jianmin LI, Weiping ZHU, Ge LI, Nei YANG, Biao CAO, Wei WANG, Xiulin NI, Shengxi LIU, Zheng LIANG
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Patent number: 11482095Abstract: A wireless control method includes sending, by a controller, a first control command to instruct the first device to execute a corresponding event, receiving, by a wireless router, the first control command, determining, in response to the first control command, that the first device is not connected to a power supply, and sending a power supply connect instruction to an input apparatus, where the power supply connect instruction instructs the input apparatus to connect the first device to the power supply.Type: GrantFiled: March 29, 2019Date of Patent: October 25, 2022Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Yafei Wang, Weiping Zhu, Jianfeng Xu
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Patent number: 11476102Abstract: Embodiments of the present disclosure provide a real-time calibration device, a real-time calibration method and a detection apparatus. The real-time calibration device is in fluid communication with a sample injection pipeline of the apparatus to be calibrated. The real-time calibration device is configured to release a trace amount of calibration agent molecules during a sample injection of the apparatus to be calibrated, so that the trace amount of calibration agent molecules and a sample entering the apparatus to be calibrated are mixed and together enter the apparatus to be calibrated, and information of the sample and the calibration agent is detected by the apparatus to be calibrated, thereby performing a calibration.Type: GrantFiled: August 27, 2020Date of Patent: October 18, 2022Assignees: Nuctech Company Limited, Tsinghua UniversityInventors: Qingjun Zhang, Zhiqiang Chen, Yuanjing Li, Jianmin Li, Yinong Liu, Yaohong Liu, Guangqin Li, Weiping Zhu, Ge Li, Qiufeng Ma, Biao Cao
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Patent number: 11422070Abstract: A sampling probe, an automatic sampling device, and a container detection system are provided. The sampling probe includes: a mounting base; a housing mounted on the mounting base, a first accommodation chamber having an opening being defined in the housing, and an exhaust hole in communication with the first accommodation chamber and outside of the housing being formed in the housing; a coupling portion formed on an outer edge of the opening of the first accommodation chamber and formed to be hermetically coupled with an air outlet of a container; and a suction device mounted on the housing and configured to suck gas in the container into the first accommodation chamber through the air outlet. The sampling probe may collect the odor of toxic and harmful gases/hazardous chemicals inside the container at the air outlet of the container, without destroying the overall structure of the container.Type: GrantFiled: August 10, 2020Date of Patent: August 23, 2022Assignees: NUCTECH COMPANY LIMITED, Tsinghua UniversityInventors: Qingjun Zhang, Yuanjing Li, Zhiqiang Chen, Jianmin Li, Shangmin Sun, Yaohong Liu, Weiping Zhu, Qiufeng Ma, Ge Li, Biao Cao, Zheng Liang, Ying Li, Yu Hu
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Patent number: 11395591Abstract: The present invention discloses a system integrating video communication and physical sign analysis, comprising at least one front-end device. The front-end device comprises a camera device, a display device, an audio device, a button device and a processor. The camera device, the display device, the audio device and the button device are all connected to the processor, and the processor can connect to the Internet network and the mobile device via wired or wireless means. The front-end device and the mobile device can perform video communication, and the front-end device can perform physical sign analysis according to the images collected by the camera device. Based on some applications in the prior art, the present invention combines video collection technology and human face analysis technology to perform physical sign analysis and obtain related indexes.Type: GrantFiled: April 1, 2020Date of Patent: July 26, 2022Assignee: Joyware Electronics Co., Ltd.Inventors: Jie Yu, Jiangfeng Yu, Weiping Zhu, Xugang Shi
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Patent number: 11346807Abstract: There are provided an ion mobility spectrometer and a sniffer. The ion mobility spectrometer includes: an ion migration tube; a sampling gas path having a sampling device configured to temporarily store a sample gas collected by a sampling head in a sampling pipe; a sample introduction gas path having two ends in communication with the gas inlet and outlet of the ion migration tube respectively, and configured to introduce a carrier gas within the ion migration tube into the sampling pipe and to carry a sample gas temporarily stored in the sampling pipe into the ion migration tube; and a valve assembly configured to only allow gas to flow from the sampling device to the sampling pipe in a sampling state, and to only allow gas to flow from the ion migration tube through the sampling pipe back to the ion migration tube in a sample introduction state.Type: GrantFiled: June 12, 2019Date of Patent: May 31, 2022Assignee: Nuctech Company LimitedInventors: Qingjun Zhang, Yuanjing Li, Zhiqiang Chen, Jianmin Li, Yinong Liu, Yaohong Liu, Lili Yan, Biao Cao, Weiping Zhu, Ge Li, Qiufeng Ma, Qi Mao, Nan Bai
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Patent number: 11320407Abstract: The present disclosure discloses a gas chromatograph-ion mobility spectrometry combined equipment, including: a gas chromatograph device for pre-separating a to-be-detected sample to form a pre-separated sample; an ion mobility spectrometry device in fluid communication with an outlet of the gas chromatograph device for detecting the pre-separated sample; and a gas circulating device in fluid communication with a discharged gas interface of the ion mobility spectrometry device for processing a discharged gas from the ion mobility spectrometry device, wherein the gas circulating device is further in gas communication with the gas chromatograph device for conveying a part of the discharged gas to the gas chromatograph device to serve as a carrier gas, which drives the to-be-detected sample to enter the gas chromatograph device. The miniaturization and the portability of the gas chromatograph-ion mobility spectrometry combined equipment are improved.Type: GrantFiled: December 16, 2019Date of Patent: May 3, 2022Inventors: Qingjun Zhang, Yuanjing Li, Zhiqiang Chen, Weiping Zhu, Yaohong Liu, Qiufeng Ma, Ge Li, Biao Cao, Lili Yan
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Patent number: 11216645Abstract: The present invention discloses a multi-camera multi-face video splicing acquisition device, comprising a plurality of cameras for successively capturing video or images with faces, at least one splicing server for face tracking, face recognition, face cutting, face sorting and face splicing of face videos or images captured by cameras; and at least one time synchronizer for calibrating the time of at least one camera and splicing server; the above devices are interconnected through a network to achieve data interaction with each other. By serially splicing the face images of the same person acquired by multiple cameras, a face sequence of a longer period of time can be formed, and the face sequences sorted by time series could be used to further extract feature information for various time series analysis, and the longer the length of time of the face sequence, the more valid information can be extracted after time-series analysis.Type: GrantFiled: April 1, 2020Date of Patent: January 4, 2022Assignee: Joyware Electronics Co., Ltd.Inventors: Jie Yu, Jiangfeng Yu, Weiping Zhu, Xugang Shi
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Patent number: 11215626Abstract: The present disclosure provides a gate system for sample detection and a method of sample inspection, which relate to the field of detection and analysis technology. The gate system comprises: an accommodating apparatus configured to accommodate an inserted ticket to be detected; a wipe sampling apparatus including a wipe sampling belt which is configured to drive the ticket to be detected to move within the accommodating apparatus and to conduct a wipe sampling to the ticket; an inspiratory sampling apparatus configured to collect samples dropped from the wipe sampling apparatus; and a detection apparatus configured to detect the samples and output detection results. The gate system for sample detection and the method of sample inspection provided by the present disclosure have a wide range of applications and can perform rapid sampling and detection to those substances that are difficult to be volatilized.Type: GrantFiled: May 8, 2019Date of Patent: January 4, 2022Assignees: TSINGHUA UNIVERSITY, NUCTECH COMPANY LIMITEDInventors: Qingjun Zhang, Yuanjing Li, Zhiqiang Chen, Ziran Zhao, Yinong Liu, Yaohong Liu, Qiufeng Ma, Lili Yan, Weiping Zhu, Biao Cao
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Publication number: 20210404988Abstract: There are provided an ion mobility spectrometer and a sniffer. The ion mobility spectrometer includes: an ion migration tube; a sampling gas path having a sampling device configured to temporarily store a sample gas collected by a sampling head in a sampling pipe; a sample introduction gas path having two ends in communication with the gas inlet and outlet of the ion migration tube respectively, and configured to introduce a carrier gas within the ion migration tube into the sampling pipe and to carry a sample gas temporarily stored in the sampling pipe into the ion migration tube; and a valve assembly configured to only allow gas to flow from the sampling device to the sampling pipe in a sampling state, and to only allow gas to flow from the ion migration tube through the sampling pipe back to the ion migration tube in a sample introduction state.Type: ApplicationFiled: June 12, 2019Publication date: December 30, 2021Applicant: NUCTECH COMPANY LIMITEDInventors: Qingjun ZHANG, Yuanjing LI, Zhiqiang CHEN, Jianmin LI, Yinong LIU, Yaohong LIU, Lili YAN, Biao CAO, Weiping ZHU, Ge LI, Qiufeng MA, Qi MAO, Nan BAI
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Patent number: 11022581Abstract: Embodiments of the present disclosure provide an ion mobility spectrometer device. The ion mobility spectrometer device includes: an ion mobility tube, a sampling device, and a sampling and circulating gas path. The sampling device includes a solid sample desorption device and a gas sampling device. The solid sample desorption device is configured to process the solid sample into a first mixed gas containing the solid sample, and the gas sampling device is configured to process the gas sample into a second mixed gas containing the gas sample. The sampling and circulating gas path is configured to transfer the first mixed gas and/or the second mixed gas into the ion mobility tube for detection.Type: GrantFiled: December 26, 2019Date of Patent: June 1, 2021Assignees: NUCTECH COMPANY LIMITED, Tsinghua UniversityInventors: Qingjun Zhang, Yuanjing Li, Zhiqiang Chen, Jianmin Li, Yaohong Liu, Weiping Zhu, Qiufeng Ma, Biao Cao, Ge Li, Wei Wang, Lili Yan, Guangqin Li
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Patent number: 10989689Abstract: A gas chromatography-ion mobility spectrometry detector and a hyphenated apparatus, the gas chromatography-ion mobility spectrometry detector comprises a gas chromatography mechanism and an ion mobility spectrometry mechanism. The gas chromatography mechanism comprises a chromatographic column and a sample injection port. The ion mobility spectrometry mechanism comprises a mobility tube and a connecting body, while a metal connection plate of the connecting body comprises a chromatographic metal plate, an ion mobility metal plate and a semipermeable membrane; on the ion mobility metal plate there are provided an ion mobility sample and carrier gas inlet, an ion mobility sample chamber and a sample injection port; the chromatography sample chamber and the ion mobility sample chamber are separated by semipermeable membrane.Type: GrantFiled: December 28, 2018Date of Patent: April 27, 2021Assignee: NUCTECH COMPANY LIMITEDInventors: Qingjun Zhang, Weiping Zhu, Yuanjing Li, Zhiqiang Chen, Ziran Zhao, Yinong Liu, Yaohong Liu, Qiufeng Ma, Ge Li, Biao Cao, Nan Bai
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Publication number: 20210118656Abstract: Embodiments of the present disclosure provide a real-time calibration device, a real-time calibration method and a detection apparatus. The real-time calibration device is in fluid communication with a sample injection pipeline of the apparatus to be calibrated. The real-time calibration device is configured to release a trace amount of calibration agent molecules during a sample injection of the apparatus to be calibrated, so that the trace amount of calibration agent molecules and a sample entering the apparatus to be calibrated are mixed and together enter the apparatus to be calibrated, and information of the sample and the calibration agent is detected by the apparatus to be calibrated, thereby performing a calibration.Type: ApplicationFiled: August 27, 2020Publication date: April 22, 2021Inventors: Qingjun Zhang, Zhiqiang Chen, Yuanjing Li, Jianmin Li, Yinong Liu, Yaohong Liu, Guangqin Li, Weiping Zhu, Ge Li, Qiufeng Ma, Biao Cao
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Publication number: 20210048376Abstract: A sampling probe, an automatic sampling device, and a container detection system are provided. The sampling probe includes: a mounting base; a housing mounted on the mounting base, a first accommodation chamber having an opening being defined in the housing, and an exhaust hole in communication with the first accommodation chamber and outside of the housing being formed in the housing; a coupling portion formed on an outer edge of the opening of the first accommodation chamber and formed to be hermetically coupled with an air outlet of a container; and a suction device mounted on the housing and configured to suck gas in the container into the first accommodation chamber through the air outlet. The sampling probe may collect the odor of toxic and harmful gases/hazardous chemicals inside the container at the air outlet of the container, without destroying the overall structure of the container.Type: ApplicationFiled: August 10, 2020Publication date: February 18, 2021Applicants: NUCTECH COMPANY LIMITED, Tsinghua UniversityInventors: Qingjun ZHANG, Yuanjing LI, Zhiqiang CHEN, Jianmin LI, Shangmin SUN, Yaohong LIU, Weiping ZHU, Qiufeng MA, Ge LI, Biao CAO, Zheng LIANG, Ying LI, Yu HU
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Publication number: 20210049898Abstract: Embodiments of this application provide a wireless control method and system and an apparatus, and relate to the field of communications technologies, so that when a power switch of a household device is turned off, the household device can be controlled by a controller. A specific solution includes: sending, by a controller, a first control command used to instruct the first device to execute a corresponding event; and receiving, by a wireless router, the first control command, determining, in response to the first control command, that the first device is not connected to a power supply, and sending a power supply connect instruction to an input apparatus, where the power supply connect instruction is used to instruct the input apparatus to connect the first device to the power supply.Type: ApplicationFiled: March 29, 2019Publication date: February 18, 2021Inventors: Yafei Wang, Weiping Zhu, Jianfeng Xu
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Publication number: 20200240961Abstract: The present disclosure discloses a gas chromatograph-ion mobility spectrometry combined equipment, including: a gas chromatograph device for pre-separating a to-be-detected sample to form a pre-separated sample; an ion mobility spectrometry device in fluid communication with an outlet of the gas chromatograph device for detecting the pre-separated sample; and a gas circulating device in fluid communication with a discharged gas interface of the ion mobility spectrometry device for processing a discharged gas from the ion mobility spectrometry device, wherein the gas circulating device is further in gas communication with the gas chromatograph device for conveying a part of the discharged gas to the gas chromatograph device to serve as a carrier gas, which drives the to-be-detected sample to enter the gas chromatograph device. The miniaturization and the portability of the gas chromatograph-ion mobility spectrometry combined equipment are improved.Type: ApplicationFiled: December 16, 2019Publication date: July 30, 2020Inventors: Qingjun ZHANG, Yuanjing LI, Zhiqiang CHEN, Weiping ZHU, Yaohong LIU, Qiufeng MA, Ge LI, Biao CAO, Lili YAN
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Publication number: 20200234036Abstract: The present invention discloses a multi-camera multi-face video splicing acquisition device, comprising a plurality of cameras for successively capturing video or images with faces, at least one splicing server for face tracking, face recognition, face cutting, face sorting and face splicing of face videos or images captured by cameras; and at least one time synchronizer for calibrating the time of at least one camera and splicing server; the above devices are interconnected through a network to achieve data interaction with each other. By serially splicing the face images of the same person acquired by multiple cameras, a face sequence of a longer period of time can be formed, and the face sequences sorted by time series could be used to further extract feature information for various time series analysis, and the longer the length of time of the face sequence, the more valid information can be extracted after time-series analysis.Type: ApplicationFiled: April 1, 2020Publication date: July 23, 2020Inventors: Jie Yu, Jiangfeng Yu, Weiping Zhu, Xugang Shi
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Publication number: 20200229699Abstract: The present invention discloses a system integrating video communication and physical sign analysis, comprising at least one front-end device. The front-end device comprises a camera device, a display device, an audio device, a button device and a processor. The camera device, the display device, the audio device and the button device are all connected to the processor, and the processor can connect to the Internet network and the mobile device via wired or wireless means. The front-end device and the mobile device can perform video communication, and the front-end device can perform physical sign analysis according to the images collected by the camera device. Based on some applications in the prior art, the present invention combines video collection technology and human face analysis technology to perform physical sign analysis and obtain related indexes.Type: ApplicationFiled: April 1, 2020Publication date: July 23, 2020Inventors: Jie Yu, Jiangfeng Yu, Weiping Zhu, Xugang Shi