Patents by Inventor Hailong Xu
Hailong Xu 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: 20240120857Abstract: A power tool includes an operating switch; a motor that is connected to the operating switch and capable of starting in response to the conduction of the operating switch and braking in response to the disconnection of the operating switch; and a control circuit configured to control a working state of the motor. The control circuit includes a driver circuit including multiple switching elements; a controller that is coupled to the motor and capable of outputting a first control signal to control the motor to start; and a parameter detection unit for detecting a working parameter of the motor. The controller is configured to, in response to the operating switch being turned on again within a preset time after being turned off, acquire the working parameter and set a duty cycle of a second control signal according to the working parameter to control the motor to restart.Type: ApplicationFiled: December 14, 2023Publication date: April 11, 2024Inventors: Hailong Wang, Tianxiao Xu
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Patent number: 11920986Abstract: A sewer pipe inflow and infiltration diagnosis method based on a distributed fiber-optic temperature measurement system is provided. The inflow and infiltration diagnosis method includes the following steps: S1: transmitting, by an optical time-domain reflectometer, an original optical signal to a temperature sensing fiber-optic cable provided in a sewer pipe; S2: feeding back, by the temperature sensing fiber-optic cable, a modulated optical signal to the optical time-domain reflectometer due to a temperature effect; S3: subjecting the modulated optical signal to photoelectric conversion, so as to acquire binary information; S4: converting the binary information into decimal information; S5: drawing a spatiotemporal map of a water temperature; and S6: eliminating a background noise value, identifying an abnormal water temperature point, determining an inflow and infiltration point of the sewer pipe, and determining an abnormal inflow and infiltration point of the sewer pipe.Type: GrantFiled: August 10, 2021Date of Patent: March 5, 2024Assignee: TONGJI UNIVERSITYInventors: Hailong Yin, Zuxin Xu, Longtian Guo, Ming Xie
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Patent number: 11898932Abstract: A device for diagnosing a fault in a bearing of a motor is provided. If the device operates in a fault diagnosis mode, a current signal acquisition unit acquires a real-time current signal of the motor, a residual signal acquisition unit extracts harmonic signals from the real-time current signal of the motor acquired by the current signal acquisition unit and remove a fundamental signal and a harmonic signal from the real-time current signal of the motor to acquire a residual signal, a fault feature extraction unit analyzes the residual signal in both time domain and frequency domain to extract a fault feature index of the bearing, and a fault diagnosis model unit performs, by using a bearing fault diagnosis model obtained through training, pattern recognition on the fault feature index to diagnose a fault state of the bearing.Type: GrantFiled: September 3, 2019Date of Patent: February 13, 2024Assignee: ZHUZHOU CRRC TIMES ELECTRIC CO., LTD.Inventors: Wenlong Zhu, Yong Liu, Jisheng Dai, Zongshuai Li, Jiawei Yang, Ping Jiang, Yanhao Zhan, Zhongjing Zhang, Hailong Xu
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Publication number: 20210286995Abstract: A device for diagnosing a fault in a bearing of a motor is provided. If the device operates in a fault diagnosis mode, a current signal acquisition unit acquires a real-time current signal of the motor, a residual signal acquisition unit extracts harmonic signals from the real-time current signal of the motor acquired by the current signal acquisition unit and remove a fundamental signal and a harmonic signal from the real-time current signal of the motor to acquire a residual signal, a fault feature extraction unit analyzes the residual signal in both time domain and frequency domain to extract a fault feature index of the bearing, and a fault diagnosis model unit performs, by using a bearing fault diagnosis model obtained through training, pattern recognition on the fault feature index to diagnose a fault state of the bearing.Type: ApplicationFiled: September 3, 2019Publication date: September 16, 2021Applicant: ZHUZHOU CRRC TIMES ELECTRIC CO., LTD.Inventors: Wenlong ZHU, Yong LIU, Jisheng DAI, Zongshuai LI, Jiawei YANG, Ping JIANG, Yanhao ZHAN, Zhongjing ZHANG, Hailong XU
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Publication number: 20190295461Abstract: A display panel and a terminal are provided. The display panel includes a light-emitting module, and scanning lines, data lines, and power lines which are electrically connected to the light-emitting module. Each of the power lines extends along a short side direction of the display panel, a number of power lines are arranged spaced apart along a long side direction of the display panel.Type: ApplicationFiled: June 14, 2019Publication date: September 26, 2019Applicant: Yungu (Gu'an) Technology Co., Ltd.Inventors: Xiaokang ZHOU, Mengzhen LI, Hui PANG, Yangjie ZHU, Hailong XU
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Patent number: 9385550Abstract: The present application is directed to a power dissipation apparatus including a conductive trace formed on a substrate and to methods of using the power dissipation apparatus. The power dissipation apparatus may be used to dissipate heat generated from electrical current passed through the conductive trace of the power dissipation apparatus. The current may be provided from, for example, a battery conditioner.Type: GrantFiled: February 19, 2015Date of Patent: July 5, 2016Assignee: ZOLL Medical CorporationInventors: Michael Lopin, James G. Radzelovage, Hailong Xu, Frederick Faller
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Publication number: 20150162765Abstract: The present application is directed to a power dissipation apparatus including a conductive trace formed on a substrate and to methods of using the power dissipation apparatus. The power dissipation apparatus may be used to dissipate heat generated from electrical current passed through the conductive trace of the power dissipation apparatus. The current may be provided from, for example, a battery conditioner.Type: ApplicationFiled: February 19, 2015Publication date: June 11, 2015Inventors: Michael Lopin, James G. Radzelovage, Hailong Xu, Frederick Faller
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Patent number: 8970171Abstract: The present application is directed to a power dissipation apparatus including a conductive trace formed on a substrate and to methods of using the power dissipation apparatus. The power dissipation apparatus may be used to dissipate heat generated from electrical current passed through the conductive trace of the power dissipation apparatus. The current may be provided from, for example, a battery conditioner.Type: GrantFiled: January 5, 2011Date of Patent: March 3, 2015Assignee: Zoll Medical CorporationInventors: Michael Lopin, James G. Radzelovage, Hailong Xu, Frederick Faller
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Publication number: 20130264112Abstract: A cable (1) in particular for use in a concentrated solar power installation is provided, is provided with a core (2) for transmitting signals and/or power, an inner jacket (3) enclosing the core, an outer jacket (4) enclosing the inner jacket, and a shield (5) disposed between the inner and outer jackets. The shield is configured as a flexible conduit. A concentrated solar power installation comprising the cable is also provided.Type: ApplicationFiled: November 1, 2012Publication date: October 10, 2013Inventors: Hailong XU, Mi LI, XIONGWEN LIN
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Publication number: 20120169287Abstract: The present application is directed to a power dissipation apparatus including a conductive trace formed on a substrate and to methods of using the power dissipation apparatus. The power dissipation apparatus may be used to dissipate heat generated from electrical current passed through the conductive trace of the power dissipation apparatus. The current may be provided from, for example, a battery conditioner.Type: ApplicationFiled: January 5, 2011Publication date: July 5, 2012Applicant: ZOLL MEDICAL CORPORATIONInventors: Michael Lopin, James G. Radzelovage, Hailong Xu, Frederick Faller