Tencent Technology (shenzhen) Company Limited

Huawei Technologies Co., Limited

Zte Corporation

Guangdong Ocean University

Tencent Technology Company Limited

Can Liu

Kai Liu

Liangliang Fan

Xiangyao Lin

Chenglin Liu

Rungui Ye

Jinhai Liu

Shihai Cheng

Anqi Ren

Yaobo Hua

Zhijie Zhou

Lejun Liu

Nongfei Pan

Danqing Sun

Zhan Shu

Yulin Wang

Huanlao Liu

Yajun Zhao

Hanqing Xu

Tao Liu

Linmei Mo

Meiying Wang

Gaofei Li

Kang Peng

Hongwei Yang

Jialin Hou

Qunlong Zhou

Chuanjing Zhang

A method for identifying pitch error and yaw error of a numerically-controlled (NC) machine tool, including: acquiring a Cartesian coordinate system of a target machine tool; setting each axis of the Cartesian coordinate system as movement axis, where each movement axis has three measurement trajectories, and the three measurement trajectories are mutually parallel to the corresponding axis, and not on the same plane; selecting an axis as the movement axis; and obtaining positioning error data between an actual operation measurement point and an ideal operation measurement point of the target machine tool when the target machine tool moves along the three measurement trajectories corresponding to the movement axis; and according to spatial angle geometric relationship and the positioning error data, obtaining a pitch error angle and a yaw error angle of the target machine tool.

Method for identifying pitch error and yaw error of numerically-controlled (NC) machine tool

A model inversion-based iterative learning control method for a printer and a printer system. An error of a desired trajectory and an actual displacement of a printing paper and an error of a reference input and an actual displacement of a motor are considered at the same time to construct an iterative learning control model for the printer based on an inversion model, so as to iteratively modify an error failing to meet requirements.

Model inversion-based iterative learning control method for printer and printer system

This application discloses a data communication method implemented at an electronic device. The electronic device obtains a sequence of data packets. Each data packet complies with a first data format corresponding to a network access protocol and comprises a respective header that further includes a data length field for specifying a length of the respective data packet. Data are then assigned to the data length fields of the sequence of data packets according to a second data format. The electronic device encrypts the sequence of data packets including the assigned data. The encrypted data packets are then sent to a receiver device that is communicatively coupled to the electronic device via a wireless network. The receiver device is configured to retrieve the assigned data from the data length fields of the data packets according to the first and second data formats and perform operations in accordance with the retrieved data.

Data communication via data packet headers

An IoT communication method, including: receiving via an account of the communication end, access information or control information sent from an account of a user end. The access information includes an identifier of a source terminal and an access command which accesses status information of the source terminal. The control information includes the identifier of the source terminal and a control command which controls the source terminal, the account of the communication end and the account of the user end are bound to each other in instant messaging software; sending the access command or the control command to the source terminal specified by the identifier of the source terminal; obtaining source information which the source terminal returns in response to receiving the access command or the control command from the communication end; sending, via the account of the communication end, the source information to the account of the user end.

Internet of Things (IoT) communication method, communication end, and user end

Provided are a method and a device for sending by occupying an unlicensed carrier, and an access point. The method includes that an access point occupies an unlicensed carrier according to a continuous occupation mode and sending data and/or signals on the unlicensed carrier; or the access point occupies the unlicensed carrier according to the continuous occupation mode or an ordinary mode and sends a downlink reference signal on the unlicensed carrier according to a preset policy. The technical solution provided by the present document can reduce the time needed for the access point to process operations such as synchronization and CSI acquisition other than data sending after the access point preempts a resource at each time.

Sending method, device, and access point for occupying an unlicensed carrier

This application discloses a data transfer method for transferring information concerning a service set associated with a communication network. An electronic device obtains a plurality of data packets that comply with a specific data format corresponding to a network access protocol, and each data packet includes a respective header that further includes at least one data field. A service set identifier (SSID) data set is arranged in the at least one data field of the plurality of data packets according to a link layer data structure. The SSID data set at least includes a SSID and a SSID password, and identifies a wireless network that transmits the plurality of data packets and is accessible when the SSID password is verified. The data packets that include the SSID data set are encrypted, and to a receiver device that is communicatively coupled to the electronic device via the identified wireless network.

Methods and systems for enabling communication with a receiver device in a network

An Internet Protocol (IP) camera control method, apparatus, and system to prevent the IP camera from being always in a working state, where the method includes waiting, by the IP camera, for receiving a standby instruction, where the IP camera is currently in the working state, and switching, by the IP camera, from the working state to a standby state when the IP camera receives the standby instruction from a server, such that power consumption of the IP camera is reduced.

IP camera control method, apparatus, and system

A method and device for controlling power, and a base station are provided. The method includes: when the service type of User Equipment (UE) is a pre-designated service type, acquiring a Hybrid Automatic Repeat Request (HARQ) process activation/deactivation flag of the UE; and in a deactivated HARQ process corresponding to the HARQ process deactivation flag of the UE, adjusting at least one of the power control related parameters, so as to reduce the transmit power of the UE. Through the embodiment of the present disclosure, when a certain HARQ process is deactivated, the base station can notify the UE to reduce the transmit power, so as to reduce the uplink interference, thereby increasing the uplink capacity of system, reducing unnecessary power waste and prolonging the standby time of the UE.

Power control method and device, and base station

A method and system for connecting a peripheral device to a user device via a Bluetooth protocol, comprising: at the peripheral device: initiating an broadcasting process, comprising: broadcasting a device discovery message, the device discovery message comprising a predetermined identifier designated for a social networking service associated with a social networking application executing on the user device; receiving, from the user device, a connection request corresponding to the device discovery message; and in response to receiving the connection request from the user device, establishing a Bluetooth connection to the user device.

Method and device for controlling peripheral devices via a social networking platform

A method and device for transmitting data between a peripheral device and a user device via a Bluetooth Low Energy connection, comprising: at the peripheral device: transmitting data to the user device in a simulated data stream, the transmitting comprising: identifying a first Bluetooth characteristic for writing data, the first Bluetooth characteristic having been exposed by the peripheral device to the user device; dividing a data packet into a sequence of data frames plus zero or one remainder, each data frame having a respective size equal to a predetermined data size of the identified first Bluetooth characteristic; and for each of the sequence of data frames: writing the data frame to a respective value for the identified first Bluetooth characteristic; and pushing the identified first Bluetooth characteristic for reading by the user device.

A starting method including, after being powered on, obtaining, by a central processing unit (CPU), a boot image file, where the boot image file includes universal boot code and differentiating boot code, the universal boot code is obtained by compiling a universal part in boot code of different chips, the universal boot code includes a first boot code segment and a second boot code segment; reading the first boot code segment from the boot image file, running the first boot code segment, and reading indication information of the differentiating boot code; reading, from the boot image file, the differentiating boot code according to the indication information of the differentiating boot code, and running the differentiating boot code; and running the second boot code segment, to complete booting of the chip to which the CPU belongs.

Growing community of inventors

Shenzhen, China

Can Liu