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公开(公告)号：US20180067878A1
公开(公告)日：2018-03-08
申请号：US15409930
申请日：2017-01-19
Inventor： Jingchao Feng , Liming Xia , Quan Wang , Ning Qu , Zhuo Chen , Yu Ma , Haifeng Wang , Yibing Liang
IPC: G06F13/16 , G06F12/1072 , G06F12/02
CPC classification number: G06F13/1663 , G06F12/023 , G06F12/084 , G06F12/0842 , G06F12/1072 , G06F2212/1044
Abstract: The present application discloses a method and an apparatus for transmitting information. A specific implementation of the method includes: sending first information to be transmitted to a shared memory; traversing memory groups in the shared memory, and acquiring a first memory unit suitable for the amount of the first information, each of the memory groups including at least one memory unit, each of memory units in the memory group having an identical size, and the memory units in different memory groups having different sizes; and storing the first information into the acquired first memory unit, so that the first information is read from the first memory unit by a receiving node. Through this implementation, the first information that needs to be transmitted is stored into the memory unit suitable for the amount of the first information, thereby saving memory resources.
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公开(公告)号：US20170371810A1
公开(公告)日：2017-12-28
申请号：US15281261
申请日：2016-09-30
Inventor： Liming Xia , Jingchao Feng , Quan Wang , Ning Qu , Zhuo Chen
Abstract: The present application discloses a method and a system for transmitting data. A method embodiment comprises: acquiring a most recent shared memory block index of a shared memory segment by a data receiver, the shared memory segment being used by a data transmitter and the data receiver to transmit data; deciding whether the most recent shared memory block index is consistent with a shared memory block index corresponding to data recently read by the data receiver; and determining, according to the decision, whether to read the data in the shared memory block corresponding to the most recent shared memory block index. According to the present application, when the frequency at which the data receiving process processes data is lower than the frequency at which the data transmitting process processes data, the data receiving process directly reads the most recent data and abandons the outdated data which is not processed in time, without influencing other data receiving processes that process data in a higher frequency. Accordingly, the extremely high demand for instantaneity for processing data by a process in the control system of an autonomous vehicle, for example, is satisfied. Therefore, the security and stability of the system are improved.
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公开(公告)号：US20170371591A1
公开(公告)日：2017-12-28
申请号：US15281268
申请日：2016-09-30
Inventor： Liming Xia , Jingchao Feng , Quan Wang , Ning Qu , Zhuo Chen
CPC classification number: G06F3/0659 , G05D1/0246 , G06F3/0604 , G06F3/064 , G06F3/067 , H04L67/00 , H04L67/1095
Abstract: The present application discloses a data transmission method and system. A specific embodiment of the method includes: receiving a data transmission-instruction by a data sender, wherein the data transmission-instruction includes a thematic name indicative of a type of to-be-transmitted data required by a data receiver; creating a shared memory segment corresponding to the thematic name. It makes possible for the data sender and the data receiver to run in a separate memory space. When data is needed to be transmitted, a corresponding shared memory segment may be created for data transmission in accordance with any transmitting requirement, and the shared memory segment may be released when the transmission is done or appears abnormal. On one hand, it reduces the redundant operations of the data transmission system during data transmission, and improves the data transmission performance; on the other hand, the data transmitting procedure between the data sender and the data receiver, and other operations executed by the data sender or the data receiver are independent of each other, which improves the stability of the data transmission system.
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公开(公告)号：US10423542B2
公开(公告)日：2019-09-24
申请号：US15281261
申请日：2016-09-30
Inventor： Liming Xia , Jingchao Feng , Quan Wang , Ning Qu , Zhuo Chen
IPC: G06F12/14 , G06F3/06 , G06F13/16 , H04L12/861 , H04L12/70
Abstract: A method and a system for transmitting data are disclosed. A method embodiment comprises: acquiring a most recent shared memory block index of a shared memory segment by a data receiver, the shared memory segment being used by a data transmitter and the data receiver to transmit data; deciding whether the most recent shared memory block index is consistent with a shared memory block index corresponding to data recently read by the data receiver; and determining, according to the decision, whether to read the data in the shared memory block corresponding to the most recent shared memory block index, where the determining includes reading the data in the shared memory block corresponding to the most recent shared memory block index when the decision indicates that the most recent shared memory block index is inconsistent with the shared memory block index corresponding to the data recently read by the data receiver.
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公开(公告)号：US10152277B2
公开(公告)日：2018-12-11
申请号：US15281268
申请日：2016-09-30
Inventor： Liming Xia , Jingchao Feng , Quan Wang , Ning Qu , Zhuo Chen
IPC: G06F3/06 , H04L12/801 , G05D1/02
Abstract: The present application discloses a data transmission method and system. A specific embodiment of the method includes: receiving a data transmission-instruction by a data sender, wherein the data transmission-instruction includes a thematic name indicative of a type of to-be-transmitted data required by a data receiver; creating a shared memory segment corresponding to the thematic name. It makes possible for the data sender and the data receiver to run in a separate memory space. When data is needed to be transmitted, a corresponding shared memory segment may be created for data transmission in accordance with any transmitting requirement, and the shared memory segment may be released when the transmission is done or appears abnormal. On one hand, it reduces the redundant operations of the data transmission system during data transmission, and improves the data transmission performance; on the other hand, the data transmitting procedure between the data sender and the data receiver, and other operations executed by the data sender or the data receiver are independent of each other, which improves the stability of the data transmission system.
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Patent Agency Ranking
公开(公告)号：US20180077232A1
公开(公告)日：2018-03-15
申请号：US15410188
申请日：2017-01-19
Inventor： Haifeng Wang , Weide Zhang , Zhuo Chen , Wei He , Kaiwen Feng , Jingchao Feng
CPC classification number: H04L67/1034 , H04L41/0668 , H04L41/0893 , H04L43/0817 , H04L43/10 , H04L67/1095 , H04L67/141
Abstract: The present application discloses a method and device for establishing communication connection. An embodiment of the method includes: selecting a predetermined number of servers from a server cluster to form a backup server cluster, the server cluster including at least one server adapted to implement a given service; obtaining communication information of each backup server in the backup server cluster, and selecting a backup server from the backup server cluster as a master server based on the communication information of the backup server; and sending the communication information of the master server to controlled equipment controlled by the server cluster to establish communication connection between the master server and the controlled equipment. The embodiment solves a problem of reliability raised when main server abnormally quits or restarts during the operation of a system.
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公开(公告)号：US20210341917A1
公开(公告)日：2021-11-04
申请号：US17373859
申请日：2021-07-13
Inventor： Jingchao Feng , Qingrui Sun , Pengjie Zheng , Tianxiang Cui , Liming Xia , Zhuo Chen , Xiaochuan Du
Abstract: A remote control method, an electronic device, a cab, a cloud server and an autonomous vehicle are provided. The method includes: receiving first remote control request information sent by a cloud, the first remote control request information is sent by the cloud after receiving second remote control request information sent by the vehicle to the cloud; sending a control parameter synchronization signal of a cab to the cloud such that the cloud sends the control parameter synchronization signal to the vehicle, so that the vehicle synchronizes the control parameter with the cab; sending verification information for taking over vehicle control to the cloud to enable the cloud to switch on a control channel between the vehicle and the cab; and sending a control signal by the cab against the vehicle and receiving a response signal from the vehicle against the control signal through the control channel.
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公开(公告)号：US10817439B2
公开(公告)日：2020-10-27
申请号：US15410680
申请日：2017-01-19
Inventor： Liming Xia , Jingchao Feng , Quan Wang , Ning Qu , Wei He , Chengliang Deng , Kaiwen Feng , Zhuo Chen
IPC: G06F13/16 , G06F12/1072 , G06F15/167
Abstract: The present application discloses a method and an apparatus for transmitting a message. The method of an embodiment comprises: dividing a shared memory area allocated by an operating system into a plurality of memory blocks for storing messages having different priorities; dividing each memory block in the plurality of memory blocks into at least one memory unit having a successive serial number; determining, from the plurality of memory blocks according to a priority of a to-be-transmitted message, a target memory block for storing the to-be-transmitted message; and writing the to-be-transmitted message into a memory unit of the target memory block. This embodiment implements message transmission based on priorities of the messages, and improves the control security of an intelligent control system.
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公开(公告)号：US10609133B2
公开(公告)日：2020-03-31
申请号：US15410188
申请日：2017-01-19
Inventor： Haifeng Wang , Weide Zhang , Zhuo Chen , Wei He , Kaiwen Feng , Jingchao Feng
Abstract: The present application discloses a method and device for establishing communication connection. An embodiment of the method includes: selecting a predetermined number of servers from a server cluster to form a backup server cluster, the server cluster including at least one server adapted to implement a given service; obtaining communication information of each backup server in the backup server cluster, and selecting a backup server from the backup server cluster as a master server based on the communication information of the backup server; and sending the communication information of the master server to controlled equipment controlled by the server cluster to establish communication connection between the master server and the controlled equipment. The embodiment solves a problem of reliability raised when main server abnormally quits or restarts during the operation of a system.
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公开(公告)号：US20180077230A1
公开(公告)日：2018-03-15
申请号：US15409753
申请日：2017-01-19
Inventor： Haifeng Wang , Wei He , Yu Ma , Weide Zhang , Zhuo Chen , Jingchao Feng
CPC classification number: H04L67/1029 , H04L41/0668 , H04L43/0817 , H04L43/10 , H04L67/1023 , H04L67/1034 , H04L67/1095
Abstract: The present application discloses a method and apparatus for switching between servers in a server cluster. The server cluster includes at least one server for implementing a given service. A specific implementation of the method includes: detecting a number of servers in a standby state in the server cluster; starting at least one server in the server cluster so that the number of servers in the standby state reaches a predetermined number, in response to detecting the number of servers in the standby state being less than the predetermined number; monitoring a master server for providing a service in the server cluster; and selecting a server from the servers in the standby state as a master server to continue to provide the service, in response to detecting the master server being abnormal. This implementation solves the data loss problem caused by an abnormal termination or restart of the master server.
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