Patents Assigned to DONGNAN ELEVATOR CO., LTD.
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Patent number: 12129150Abstract: A collaborative scheduling method for high-rise elevators based on Internet of Things is provided. The method includes: obtaining the number of people carried at the current moment of each elevator in the elevator group, the target distance corresponding to the current moment of each elevator, and the number of people waiting at the current moment of each floor; predicting the number of people waiting for the going up and the number of people waiting for the going down at the current moment of each floor based on the monitoring video data of the elevator door every day in the preset historical days, and constructing the corresponding feature vectors of each elevator at the current moment and the corresponding feature vectors of the skyscraper at the current moment, and then obtaining the corresponding state vectors at the current moment, controlling each elevator based on state vector and a reinforcement learning network.Type: GrantFiled: September 25, 2023Date of Patent: October 29, 2024Assignees: Changshu Institute of Technology, Dongnan Elevator Co., Ltd.Inventors: Fusheng Zhang, Yang Ge, Anbo Jiang, Lingyun Ma, Zhen Zhao, Jianxin Ding, Jiancong Qin, Yong Ren, Guodong Sun, Yong Feng, Linzhong Tang
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Publication number: 20240217772Abstract: A collaborative scheduling method for high-rise elevators based on Internet of Things is provided. The method includes: obtaining the number of people carried at the current moment of each elevator in the elevator group, the target distance corresponding to the current moment of each elevator, and the number of people waiting at the current moment of each floor; predicting the number of people waiting for the going up and the number of people waiting for the going down at the current moment of each floor based on the monitoring video data of the elevator door every day in the preset historical days, and constructing the corresponding feature vectors of each elevator at the current moment and the corresponding feature vectors of the skyscraper at the current moment, and then obtaining the corresponding state vectors at the current moment, controlling each elevator based on state vector and ES-Reinforcement learning network.Type: ApplicationFiled: September 25, 2023Publication date: July 4, 2024Applicants: Changshu Institute of Technology, Dongnan Elevator Co., Ltd.Inventors: Fusheng ZHANG, Yang GE, Anbo JIANG, Lingyun MA, Zhen ZHAO, Jianxin DING, Jiancong QIN, Yong REN, Guodong SUN, Yong FENG, Linzhong TANG
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Patent number: 11958719Abstract: The present invention relates to the field of elevator braking, in particular to an action state detection method and system for an elevator brake, comprising: acquiring matching pairs of brake linings in the same braking state; constructing normal record data sets based on the matching pairs; grouping the normal record data sets based on braking power corresponding to samples in the normal record data sets to determine a median of elevator running speed corresponding to the samples in each group; dividing the operating state levels of the elevator brake according to the size of the median; constructing a data training set; training a constructed network model to obtain a trained network model; acquiring the operating state levels of an elevator to be detected by the trained network model, evaluating the elevator brake according to the operating state levels, and controlling the elevator.Type: GrantFiled: June 22, 2023Date of Patent: April 16, 2024Assignees: Changshu Institute of Technology, Dongnan Elevator Co., Ltd.Inventors: Yang Ge, Fusheng Zhang, Anbo Jiang, Lingyun Ma, Zhen Zhao, Jianxin Ding, Jiancong Qin, Yong Ren, Guodong Sun
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Patent number: 10399822Abstract: A hydraulic elevating platform having no guide rails and an elevating method. A hydraulic power pack drives three parallel hydraulic cylinders to work synchronously, thereby implementing the rising and falling of an elevating platform; when the elevating platform reaches a predetermined floor, an upper electric pushrod pushes a pedal assembly out, and then the pedal assembly drives a pedal to rise by means of a pedal elevating system until the pedal is flush with the surface of a loading table of the elevating platform; outward-swinging doors between the elevating platform and a floor open to form pedal guardrails; then sliding doors open and a man can step onto a stair via the pedal assembly. An eccentric loading adjusting means eliminates eccentric loading to achieve balance about the center of gravity, thereby eliminating the eccentric loading of the platform. The elevating platform is simple in structure, safe, reliable, and easy to maintain.Type: GrantFiled: December 29, 2015Date of Patent: September 3, 2019Assignee: Dongnan Elevator Co., Ltd.Inventors: Zhencai Zhu, Guohua Cao, Jiancong Qin, Panda Wang, Weihong Peng, Lingyun Ma, Yiping Ma, Ming Gao, Jianrong Yang, Lei Wei
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Publication number: 20180170716Abstract: A hydraulic elevating platform having no guide rails and an elevating method. A hydraulic power pack drives three parallel hydraulic cylinders to work synchronously, thereby implementing the rising and falling of an elevating platform; when the elevating platform reaches a predetermined floor, an upper electric pushrod pushes a pedal assembly out, and then the pedal assembly drives a pedal to rise by means of a pedal elevating system until the pedal is flush with the surface of a loading table of the elevating platform; outward-swinging doors between the elevating platform and a floor open to form pedal guardrails; then sliding doors open and a man can step onto a stair via the pedal assembly. An eccentric loading adjusting means eliminates eccentric loading to achieve balance about the center of gravity, thereby eliminating the eccentric loading of the platform. The elevating platform is simple in structure, safe, reliable, and easy to maintain.Type: ApplicationFiled: December 29, 2015Publication date: June 21, 2018Applicants: Dongnan Elevator Co., Ltd., China University of Mining and TechnologyInventors: Zhencai Zhu, Guohua Cao, Jiancong Qin, Panda Wang, Weihong Peng, Lingyun Ma, Yiping Ma, Ming Gao, Jianrong Yang, Lei Wei
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Patent number: 9688513Abstract: An elevator anti-fall buffer based on flexible guidance. The anti-fall buffer is used for connecting and fixing an end part of a braking steel rope of an elevator. The anti-fall buffer has an upper support plate and a lower support plate, wherein a pulley set is provided on the upper support plate and the lower support plate, and a hydraulic damping buffer is provided at two sides of the pulley set. The anti-fall buffer uses the energy consumption principle of a hydraulic damping hole, and while protecting the braking steel rope from the force of impact created thereon by the elevator, prevents the force of impact from a spring on the elevator post-braking, improving the safety and reliability of elevator braking, thereby improving safety of an elevator, while also using a pulley set can increase the braking distance of the braking steel rope, thereby lengthening life of the steel rope.Type: GrantFiled: March 26, 2014Date of Patent: June 27, 2017Assignee: DONGNAN ELEVATOR CO., LTD.Inventors: Zhencai Zhu, Jiancong Qin, Guohua Cao, Guangfeng Mao, Wei Li, Gongbo Zhou, Beibei Fu, Hongbin Fei, Yiping Ma, Jianrong Yang
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Patent number: 9242836Abstract: Disclosed are an apparatus and a method of automatically adjusting a tension of a steel rope that comprises a guide system along which a mining elevator car moves vertically. The apparatus and the method allow the flexible guide rail to be structurally simple, convenient to process, reliable in performance, and easy to install and to maintain. The apparatus and the method allow restriction of vertical orientation and horizontal deflection, and are capable of real-time detection and automatic adjustment of the tension in the flexible guide rail of the elevator.Type: GrantFiled: August 25, 2011Date of Patent: January 26, 2016Assignees: CHINA UNIVERSITY OF MINING AND TECHNOLOGY, DONGNAN ELEVATOR CO., LTD.Inventors: Guohua Cao, Zhencai Zhu, Renyuan Wu, Jiancong Qin, Hongqiao Kang, Weihong Peng, Guoan Chen, Chongqiu Wang, Xingguo Shao, Yilei Li, Gongbo Zhou
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Publication number: 20150291391Abstract: An elevator anti-fall buffer based on flexible guidance. The anti-fall buffer is used for connecting and fixing an end part of a braking steel rope of an elevator. The anti-fall buffer has an upper support plate and a lower support plate, wherein a pulley set is provided on the upper support plate and the lower support plate, and a hydraulic damping buffer is provided at two sides of the pulley set. The anti-fall buffer uses the energy consumption principle of a hydraulic damping hole, and while protecting the braking steel rope from the force of impact created thereon by the elevator, prevents the force of impact from a spring on the elevator post-braking, improving the safety and reliability of elevator braking, thereby improving safety of an elevator, while also using a pulley set can increase the braking distance of the braking steel rope, thereby lengthening life of the steel rope.Type: ApplicationFiled: March 26, 2014Publication date: October 15, 2015Applicants: DONGNAN ELEVATOR CO., LTD., CHINA UNIVERSITY OF MINING AND TECHNOLOGYInventors: Zhencai Zhu, Jiancong Qin, Guohua Cao, Guangfeng Mao, Wei Li, Gongbo Zhou, Beibei Fu, Hongbin Fei, Yiping Ma, Jianrong Yang
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Patent number: 9156655Abstract: A mining elevator traction cable connecting apparatus and a measuring method therefor, for use in a mining elevator serving a deep-mine. The apparatus includes an industrial personal computer (IPC), a signal collector connected to the IPC, multiple symmetrically arranged cable rings for use in connecting to one end of a traction cable, and a traction cable tension adjusting apparatus connected to the multiple of cable rings. Arranged within the traction cable tension adjusting apparatus are a plurality of hydraulic cylinders, and a plurality of draw wire displacement sensors for use in monitoring the relative displacement between each hydraulic cylinder plunger and a corresponding hydraulic cylinder body. The draw wire displacement sensors and an oil pressure sensor connected to a hydraulic pipeline are connected to the IPC via the signal collector, forming a traction cable tension and degree of adjustment measuring system.Type: GrantFiled: August 25, 2011Date of Patent: October 13, 2015Assignees: China University of Mining and Technology, Dongnan Elevator Co., Ltd.Inventors: Guohua Cao, Zhencai Zhu, Jiancong Qin, Hongqiao Kang, Guoan Chen, Chongqiu Wang, Renyuan Wu, Yongguang Cao, Junhui Wu, Yilei Li
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Publication number: 20130233654Abstract: Disclosed are an apparatus and a method for automatically adjusting the tension on a mining elevator flexible guide rail. The apparatus comprises an automatic tightening apparatus (1) at the opening of the well, and a fixing apparatus (2) on the bottom of the well, respectively connected to two ends of the steel cable (3). The automatic tightening apparatus (1) at the opening of the well is connected to a hydraulic system (5) and to a tension measuring system (4). The automatic tightening apparatus (1) at the opening of the well comprises a lower retainer seat (1-14) arranged on an upper bearer beam (1-1), a tightening oil cylinder body (1-2) and a plunger thereof (1-3), a pin shaft retainer (1-11), a support frame (1-6), a fall-proof holder (1-13), a pin shaft holder (1-5), a fall-proof cable retainer (1-12), a tightening fixed cable retainer (1-10), two guide columns (1-7) and guide grooves thereof, an upper retainer seat (1-9), and a cable orientation-adjusting cable retainer (1-8).Type: ApplicationFiled: August 25, 2011Publication date: September 12, 2013Applicants: DONGNAN ELEVATOR CO., LTD., CHINA UNIVERSITY OF MINING AND TECHNOLOGYInventors: Guohua Cao, Zhencai Zhu, Renyuan Wu, Jiancong Qin, Hongqiao Kang, Weihong Peng, Guoan Chen, Chongqiu Wang, Xingguo Shao, Yilei Li, Gongbo Zhou
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Publication number: 20130056313Abstract: A mining elevator traction cable connecting apparatus and a measuring method therefor, for use in a mining elevator serving a deep-mine. The apparatus includes an industrial personal computer (IPC), a signal collector connected to the IPC, multiple symmetrically arranged cable rings for use in connecting to one end of a traction cable, and a traction cable tension adjusting apparatus connected to the multiple of cable rings. Arranged within the traction cable tension adjusting apparatus are a plurality of hydraulic cylinders, and a plurality of draw wire displacement sensors for use in monitoring the relative displacement between each hydraulic cylinder plunger and a corresponding hydraulic cylinder body. The draw wire displacement sensors and an oil pressure sensor connected to a hydraulic pipeline are connected to the IPC via the signal collector, forming a traction cable tension and degree of adjustment measuring system.Type: ApplicationFiled: August 25, 2011Publication date: March 7, 2013Applicants: DONGNAN ELEVATOR CO., LTD., CHINA UNIVERSITY OF MINING AND TECHNOLOGYInventors: Guohua Cao, Zhencai Zhu, Jiancong Qin, Hongqiao Kang, Guoan Chen, Chongqiu Wang, Renyuan Wu, Yongguang Cao, Junhui Wu, Yilei Li