Abstract: The disclosure relates to the technical field of polluted sediment remediation, and particularly relates to a biochar-enhanced grass blanket for remediating contaminated sediment and a preparation method thereof, and a method for remediating contaminated sediment. In the disclosure, the grass blanket for remediating contaminated sediment prepared by the method can not only efficiently absorb pollutants released from the contaminated sediment but also facilitate the entry of the root system of submerged plants into the contaminated sediment simultaneously, thereby improving the survival rate of the submerged plant and effectively ameliorating the matrix of the contaminated sediment.

Abstract: An apparatus for accessing a wireless fidelity (Wi-Fi) network, including a Wi-Fi processor and N Wi-Fi access circuits. N is a natural number greater than or equal to 2. The Wi-Fi processor is shared by the N Wi-Fi access circuits and implements an operation function related to Wi-Fi. The N Wi-Fi access circuits receives and transmits data at a same time through N Wi-Fi networks that operate on different radio frequency bands. Each Wi-Fi access circuit of the Wi-Fi access circuits comprises a Media Access Control (MAC) hardware and a physical layer (PHY) hardware.

Abstract: A method and an apparatus for accessing a WI-FI network supporting a terminal in being coupled to two or more WI-FI networks at the same time, and therefore, WI-FI network is applied in a safer and more fluent manner. The method is applied to a terminal, the terminal includes N WI-FI access circuits and at least one processor, the at least one processor is configured to run a software program to form M containers, one container may be equivalent to one operating system, switch operation may be performed between different containers, each container corresponds to one WI-FI network access service, the M containers are capable of operating at the same time, tasks and data of different WI-FI network access services during operation of different containers are mutually isolated, and M and N are natural numbers greater than or equal to two.

Abstract: An apparatus for accessing a wireless fidelity (Wi-Fi) network, including a Wi-Fi processor and N Wi-Fi access circuits. N is a natural number greater than or equal to 2. The Wi-Fi processor is shared by the N Wi-Fi access circuits and implements an operation function related to Wi-Fi. The N Wi-Fi access circuits receives and transmits data at a same time through N Wi-Fi networks that operate on different radio frequency bands. Each Wi-Fi access circuit of the Wi-Fi access circuits comprises a Media Access Control (MAC) hardware and a physical layer (PHY) hardware.

Abstract: Provided is a User Datagram Protocol (UDP)-based control command transmission method, in which a sender sends a control command packet to a receiver based on a UDP; and the receiver sends an Acknowledgement (ACK) packet to the sender based on the UDP after receiving the control command packet. A sender and a receiver are also provided.

Abstract: A method and an apparatus for accessing a WI-FI network supporting a terminal in being coupled to two or more WI-FI networks at the same time, and therefore, WI-FI network is applied in a safer and more fluent manner. The method is applied to a terminal, the terminal includes N WI-FI access circuits and at least one processor, the at least one processor is configured to run a software program to form M containers, one container may be equivalent to one operating system, switch operation may be performed between different containers, each container corresponds to one WI-FI network access service, the M containers are capable of operating at the same time, tasks and data of different WI-FI network access services during operation of different containers are mutually isolated, and M and N are natural numbers greater than or equal to two.

Abstract: A method for time synchronization between wireless devices comprises: obtaining a time difference corresponding to a single synchronization operation between a first wireless device and a second wireless device; performing validity filtering to the time difference corresponding to the single synchronization operation, and extracting valid time difference data; performing smoothing processing on valid time difference data corresponding to multiple times of the single synchronization operation within a preset time period, and obtaining an average time difference of the second wireless device relative to the first wireless device within the preset time period; adjusting system time of the second wireless device based on the obtained average time difference at an interval of the preset time period, so as to make the second wireless device time-synchronized with the first wireless device.

Abstract: Provided are a data processing method, a charging device and a mobile terminal. A charging position of the charging device matches a wireless earphone. The method includes: when the wireless earphone is placed at the charging position of the charging device, a first connection is established between a first port of the charging device and a second port of the wireless earphone; through the first connection, the charging device supplies power to the wireless earphone, and data is transmitted between the charging device and the wireless earphone via the first connection; or, a wireless connection is established between the charging device and the wireless earphone through a wireless communication module of the charging device, and data is transmitted between the charging device and the wireless earphone via the wireless connection.

Abstract: A method for time synchronization between wireless devices comprises: obtaining a time difference corresponding to a single synchronization operation between a first wireless device and a second wireless device; performing validity filtering to the time difference corresponding to the single synchronization operation, and extracting valid time difference data; performing smoothing processing on valid time difference data corresponding to multiple times of the single synchronization operation within a preset time period, and obtaining an average time difference of the second wireless device relative to the first wireless device within the preset time period; adjusting system time of the second wireless device based on the obtained average time difference at an interval of the preset time period, so as to make the second wireless device time-synchronized with the first wireless device.

Abstract: Disclosed is a method and system for self-adaptively transmitting communication signals. The method comprises: a host acquires its own position information and position information of each terminal, and then calculates to acquire a relative position relationship between the host and each terminal according to the acquired position information; and the host matches each communication signal to be transmitted with each terminal according to the relative position relationship between the host and each terminal, and wirelessly transmits corresponding communication signals to each terminal according to the matched correspondence. By means of the technical scheme of the present invention, the complex wiring and wire plugging processes of wired transmission can be omitted, also the self-adapting transmission of signals is achieved, and the working efficiency is improved.

Abstract: Provided is a User Datagram Protocol (UDP)-based control command transmission method, in which a sender sends a control command packet to a receiver based on a UDP; and the receiver sends an Acknowledgement (ACK) packet to the sender based on the UDP after receiving the control command packet. A sender and a receiver are also provided.

Abstract: The invention discloses a method and system for realizing mutual control of multimedia terminals in the home. The method comprises the following steps: when a registered user logs on the multimedia terminals, an interactive server establishes network connection with the multimedia terminals, and obtains the identification and the type of the multimedia terminals; the interactive server receives a control message which is sent by a control terminal and is used for controlling a player terminal, the control message containing a control command description and an identification of the player terminal; the interactive server parses the control message according to the type of the control terminal, converts the control command description into a control command corresponding to the player terminal according to the identification of the player terminal, and sends the control command to the player terminal so that the player terminal executes the received control command.

Abstract: Disclosed is a method and system for self-adaptively transmitting communication signals. The method comprises: a host acquires its own position information and position information of each terminal, and then calculates to acquire a relative position relationship between the host and each terminal according to the acquired position information; and the host matches each communication signal to be transmitted with each terminal according to the relative position relationship between the host and each terminal, and wirelessly transmits corresponding communication signals to each terminal according to the matched correspondence. By means of the technical scheme of the present invention, the complex wiring and wire plugging processes of wired transmission can be omitted, also the self-adapting transmission of signals is achieved, and the working efficiency is improved.

Abstract: The invention discloses a method and system for realizing mutual control of multimedia terminals in the home. The method comprises the following steps: when a registered user logs on the multimedia terminals, an interactive server establishes network connection with the multimedia terminals, and obtains the identification and the type of the multimedia terminals; the interactive server receives a control message which is sent by a control terminal and is used for controlling a player terminal, the control message containing a control command description and an identification of the player terminal; the interactive server parses the control message according to the type of the control terminal, converts the control command description into a control command corresponding to the player terminal according to the identification of the player terminal, and sends the control command to the player terminal so that the player terminal executes the received control command.

Abstract: Disclosed are a method and a system for protecting data. The method for protecting data provided by an embodiment of the present invention comprises: in an initialization process of a device where data are located, acquiring an environmental factor according to environment information of the device in a secure environment; and encrypting sensitive data in the device by utilizing the environmental factor in the secure environment, and after determining that the encryption succeeds, destroying the environmental factor. Each time the device is started, an environmental factor is acquired according to the environment information of the device in the current environment, and then the encrypted sensitive data in the device is decrypted by utilizing the environmental factor in the current environment; when the decryption succeeds, access to the data in the device is allowed, and when the decryption fails, access to the data in the device is denied.