Hikvision Digital Technology Assigned Five Patents

Video storage and video data transmission
Hangzhou Hikvision Digital Technology Co., Ltd., Zhejiang, China, has been assigned a patent (11,012,483) developed by Zhou, Xiaojun, Zhejiang, China, for “video storage system, and video data transmission method for same.“

The abstract of the patent published by the U.S. Patent and Trademark Office states: ”The present application discloses a system for video storage and method for video data transmission based on the same. The system for video storage in the present application includes a first control node, a second control node and at least two storage nodes. Each control node includes a signal agent module, and each storage node includes a data agent module. The second control node is configured for starting the signal agent module of the second control node after determining that the first control node is unavailable. The signal agent module of the second control node is configured for transmitting an instruction to the data agent module of a designated storage node based on a service request through a preset virtual IP address. The data agent module of the designated storage node is configured for transmitting video data to the third-party platform according to the received instruction and based on the predetermined signal protocol. This can effectively avoid the single point of failure and ensure the stability of the system.”

The patent application was filed on February 8, 2017 (16/094,083).

Storage, distribution, reconstruction and recovery, and data processing
Hangzhou Hikvision Digital Technology Co., Ltd., Zhejiang, China, has been assigned a patent (11,010,072) developed by Ye, Min, Lin, Peng, Wang, Weichun, and Lin, Qiqian, Hangzhou, China, for “data storage, distribution, reconstruction and recovery methods and devices, and data processing system.“

The abstract of the patent published by the U.S. Patent and Trademark Office states: ”Embodiments of the present application provide a method and apparatus for displaying objects. In the method, data segments of to-be-stored data are stored in storage objects. A storage object is a minimum unit for data storage. The difference between the number of data segments stored in a storage object and that of another storage object is no more than a first preset threshold. Data segments are equally stored, to the greatest extent, into storage objects. The case that data having segments lost due to failure of a storage object cannot be restored is avoided.”

The patent application was filed on March 16, 2018 (16/495,042).

Storage, reading, and cleansing, and cloud storage
Hangzhou Hikvision Digital Technology Co., Ltd., Zhejiang, China, has been assigned a patent (11,003,367) developed by Pu, Shiliang, Ding, Guangkai, Wang, Weichun, Lin, Qiqian, and Wang, Wei, Hangzhou, China, for “data storage, reading, and cleansing method and device, and cloud storage system.“

The abstract of the patent published by the U.S. Patent and Trademark Office states: ”Disclosed are data storage, data reading, and data cleaning methods and devices, and a cloud storage system. Storage blocks of storage nodes are grouped into resource pools. A method can include: for each resource pool, determining a first number of occupied storage blocks in the resource pool (S401) determining whether the first number meets a preset data cleaning condition (S402) if so, sending a data cleaning instruction to a storage node where each occupied second storage block in the resource pool is located, such that the storage node cleans the data stored on the second storage block in the storage node (S403). That is to say, the management node determines the number of occupied storage blocks of a resource pool. When the number meets a preset data cleaning condition, the data in the storage block is cleaned. Such a process is simple, reducing the workload of management node.”

The patent application was filed on September 15, 2017 (16/343,219).

Video storage, operation method thereof, and retrieval server
Hangzhou Hikvision Digital Technology Co., Ltd., Zhejiang, China, has been assigned a patent (10,827,205) developed by Wang, Wei, Zhejiang, China, for “data storage, reading, and cleansing method and device, and cloud storage system.“

The abstract of the patent published by the U.S. Patent and Trademark Office states: ”The present disclosure provides a video data storage system, an operation method thereof, and a retrieval server. The video data storage system according to present disclosure includes an index server and at least two storage servers for storing video data. The index server stores a first mapping relationship between a camera identification code and a storage server identification code. Each of the storage server stores a second mapping relationship among a camera identification code, a time range of video data and a physical location of video data in the storage server. The operation method includes: making, by the index server, statistics of an operation hot value of video data operated by all clients, and determining the operation hot value of the video data is greater than a predetermined first threshold, if yes, sending, by the index server, a backup instruction to at least one storage server, to instruct the storage server to back up the video data and update the second mapping relationship. The present disclosure can protect the hottest data using a minimum amount of capacity and bandwidth.”

The patent application was filed on February 8, 2017 (16/305,607).

Data recovery and cloud storage
Hangzhou Hikvision Digital Technology Co., Ltd., Zhejiang, China, has been assigned a patent (10,824,372) developed by Zhang, Ketao, and Xu, Aiqiu, Zhejiang, China, for “data recovery method and device, and cloud storage system.“

The abstract of the patent published by the U.S. Patent and Trademark Office states: ”The embodiments of the present application disclose a data recovery method, device, and cloud storage system. A management node constructs a blank metadata database and sets the metadata database to an inaccessible state, reads backup data of configuration data and adds the backup data to the metadata database, obtains index data of data stored in the storage node and adds the index data to the metadata database, and sets the metadata database to an accessible state so as to cause the metadata database to resume service. It can be seen that, after applying the solution, when a metadata database is damaged, a metadata database is reconstructed, and the configuration data and the index data are obtained and added to the reconstructed database, realizing the recovery of the metadata.”

The patent application was filed on February 13, 2017 (16/312,587).