Abstract: Provided in the embodiments of the present application is a blockchain hybrid consensus-based system for maintaining domain name information. A gTLD blockchain is formed by first network nodes where international generic top-level domain registries are located, and a ccTLD blockchain is formed by second network nodes where various countries codes top-level domain registries are located. In each blockchain, various network nodes of the blockchain participate in the domain name information update process, so that the domain name information update process will not be affected by a mistake or an attack on one network node. Compared to centralized maintenance methods, this decentralized maintenance method is more secure and is beneficial to maintaining the stability of the system.

Abstract: A Near Field Communication (NFC) tag and a control system for the NFC tag are provided. The NFC tag includes: a NFC coil, a control circuit, an energy acquisition circuit, and an energy storage circuit, wherein the NFC coil is configured to detect a magnetic field signal transmitted by a card reader when a distance between the NFC tag and the card reader is within a predetermined distance range; the energy acquisition circuit is configured to convert the magnetic field signal into an electrical signal when the NFC coil detects the magnetic field signal; and the control circuit is configured to control the energy acquisition circuit to transmit the electrical signal to the energy storage circuit, and control to charge the energy storage circuit through the electrical signal.

Abstract: A method for transmitting data streams, applicable to a stream distributing device including a plurality of transmitters, includes: acquiring a data stream to be transmitted; acquiring, from the data stream, a plurality of data segments corresponding to the plurality of transmitters, wherein each of the transmitters corresponds to at least one data segment, and different transmitters correspond to different data segments; and transmitting the corresponding data segments to a stream combining device using the plurality of transmitters, such that the stream combining device transmits the data stream to a playing device in response to acquiring the data stream by combining the plurality of data segments.

Abstract: The present disclosure discloses an electronic distribution method and apparatus. The method includes: acquiring user information and first terminal information of a distribution terminal which are transmitted by a server; generating a first key and transmitting the first key to the server; acquiring second terminal information which is encrypted by the distribution terminal using the first key received from the server and is transmitted by the distribution terminal; decrypting the second terminal information encrypted by using the first key to obtain the second terminal information; matching the second terminal information with the first terminal information; and displaying the user information if the second terminal information matches the first terminal information.

Abstract: The present disclosure discloses a display adjustment method and device for a bar-shaped electronic shelf label. The method according to the present disclosure includes: configuring a mobile terminal to be coupled with a bar-shaped electronic shelf label and obtain status information of display elements displayed on a display interface of the bar-shaped electronic shelf label; changing, by the mobile terminal, the position information of a display element from a first position information to a second position information and generating an element position adjustment instruction; configuring the bar-shaped electronic shelf label to receive the element position adjustment instruction, change the position of the display element from the first position to the second position in response to the element position adjustment instruction, and display the display element on the display interface of the bar-shaped electronic shelf label.

Abstract: A Near Field Communication (NFC) tag and a control system for the NFC tag are provided. The NFC tag includes: a NFC coil, a control circuit, an energy acquisition circuit, and an energy storage circuit, wherein the NFC coil is configured to detect a magnetic field signal transmitted by a card reader when a distance between the NFC tag and the card reader is within a predetermined distance range; the energy acquisition circuit is configured to convert the magnetic field signal into an electrical signal when the NFC coil detects the magnetic field signal; and the control circuit is configured to control the energy acquisition circuit to transmit the electrical signal to the energy storage circuit, and control to charge the energy storage circuit through the electrical signal.

Abstract: The present disclosure relates to a display apparatus, a display drive circuit and a driving method of an electronic paper display unit, which relates to the field of display technology. The display drive circuit includes a display control circuit, the display control circuit includes a capacitor unit, a radio frequency circuit, a voltage collection circuit, and a control circuit. The radio frequency circuit includes an induction circuit and a communication circuit. The induction circuit can charge the capacitor unit in response to a radio frequency signal of the terminal device. The collection circuit can collect the voltage of the capacitor unit. The control circuit can perform the transmission action when the voltage of the capacitor unit reaches an operating threshold voltage of the electronic paper display unit; turn off the voltage collection circuit and the communication circuit after the transmission action is completed.

Abstract: A channel allocation method includes: determining a second channel among idle channels in response to a communication request received from a terminal device over a first channel; and broadcasting a reservation message over the first channel, wherein the reservation message includes second channel information and a reserved communication period, the second channel information is information about the second channel, and the reserved communication period is a time period in which the terminal device is allowed to communicate with the gateway.

Abstract: A method of monitoring a closed system, an apparatus thereof and a monitoring device are provided. The method of monitoring the closed system includes: performing a page capturing on a web page of the closed system; searching from a captured page, according to configuration information of data to be monitored of the closed system, a text content corresponding to the data to be monitored; and converting the text content corresponding to the data to be monitored into monitored data which a system monitoring platform is capable of recognizing, and storing the monitored data.

Abstract: An electronic tag includes an electronic tag body. The electronic tag body includes a housing, a display screen configured to display information, and a sensor and a main controller that are disposed inside the housing. The sensor is configured to detect an ambient temperature of an environment in which the electronic tag body is located. The main controller is configured to shut off power supplied to the display screen in response to the ambient temperature detected by the sensor being beyond an operating temperature range of the display screen.

Abstract: The present disclosure discloses an item monitoring method, terminal and system. The item monitoring method includes: scanning a radio frequency identification tag of an item within a preset range according to a preset scanning period using radio frequency identification technology, and acquiring item information in the radio frequency identification tag; determining whether the item corresponding to the item information belongs to an item scope covered by the preset range; and outputting first prompt information in response to determining that the item corresponding to the item information does not belong to the item scope covered by the preset range.

Abstract: The present disclosure relates to a display apparatus, a display drive circuit and a driving method of an electronic paper display unit, which relates to the field of display technology. The display drive circuit includes a display control circuit, the display control circuit includes a capacitor unit, a radio frequency circuit, a voltage collection circuit, and a control circuit. The radio frequency circuit includes an induction circuit and a communication circuit. The induction circuit can charge the capacitor unit in response to a radio frequency signal of the terminal device. The collection circuit can collect the voltage of the capacitor unit. The control circuit can perform the transmission action when the voltage of the capacitor unit reaches an operating threshold voltage of the electronic paper display unit; turn off the voltage collection circuit and the communication circuit after the transmission action is completed.

Abstract: The present disclosure provides a data transmission method, a network device, a terminal device, and a computer readable storage medium, the data transmission method including: on a first network side, providing first data to a first network address in a first network; determining, based on mapping of first network addresses in the first network and second network addresses in a second network, a second network address according to the first network address; and transmitting the first data to a terminal device located at the determined second network address in the second network based on a Message Queue Telemetry Transmission (MQTT) protocol.

Abstract: Disclosed are a communication method of a communication device, an electronic device, and a storage medium, the communication method includes: constructing a target group, wherein the target group includes the communication device and at least one other communication device, and each communication device in the target group sequentially transmits a message on a communication frequency point of the target group; determining a priority of the communication device in the target group, and determining a transmission time slot corresponding to the priority according to the priority; transmitting data message in the transmission time slot, and receiving data message at a time other than the transmission time slot. With the communication method, the electronic device and the storage medium provided by the present disclosure, communication can be implemented in a relatively convenient and economical way.

Abstract: A channel allocation method includes: determining a second channel among idle channels in response to a communication request received from a terminal device over a first channel; and broadcasting a reservation message over the first channel, wherein the reservation message includes second channel information and a reserved communication period, the second channel information is information about the second channel, and the reserved communication period is a time period in which the terminal device is allowed to communicate with the gateway.

Abstract: The embodiments of the present disclosure provides a bar screen control circuitry, a bar screen display system and the method for controlling the bar screen. The bar screen control circuitry comprises a power supply control circuitry and a processor electrically connected with each other; the power control circuitry is configured to: determine whether a current time reaches a preset starting time, and control a bar screen external to the bar screen control circuitry to enter a first working state when the current time reaches the preset starting time; obtain a closing control signal sent by the processor in response to a preset closing time, and control the bar screen to enter a closed state according to the closing control signal; and the processor is configured to: determine whether the current time reaches the closing time, and send the closing control signal to the power supply control circuitry when the current time reaches the closing time.

Abstract: A method of monitoring a closed system, an apparatus thereof and a monitoring device are provided. The method of monitoring the closed system includes: performing a page capturing on a web page of the closed system; searching from a captured page, according to configuration information of data to be monitored of the closed system, a text content corresponding to the data to be monitored; and converting the text content corresponding to the data to be monitored into monitored data which a system monitoring platform is capable of recognizing, and storing the monitored data.

Abstract: The present application discloses a gateway device for managing multiple electronic tags. The gateway device includes a network modem configured to receive updated data for multiple electronic tags. Additionally, the gateway device includes a communication chip configured to transmit individual updated data for each individual electronic tag one by one to the corresponding individual electronic tag of the multiple electronic tags. Moreover, the gateway device includes a microcontroller coupled with the network modem and the communication chip to control receiving the updated data for the multiple electronic tags from the network modem and transmitting multiple individual updated data respectively to the multiple electronic tags.

Abstract: An electronic tag includes an electronic tag body, The electronic tag body includes a housing, a display screen configured to display information, and a sensor and a main controller that are disposed inside the housing. The sensor is configured to detect an ambient temperature of an environment in which the electronic tag body is located. The main controller is configured to shut off power supplied to the display screen in response to the ambient temperature detected by the sensor being beyond an operating temperature range of the display screen.

Abstract: The embodiments of the present disclosure provides a bar screen control circuitry, a bar screen display system and the method for controlling the bar screen. The bar screen control circuitry comprises a power supply control circuitry and a processor electrically connected with each other; the power control circuitry is configured to: determine whether a current time reaches a preset starting time, and control a bar screen external to the bar screen control circuitry to enter a first working state when the current time reaches the preset starting time; obtain a closing control signal sent by the processor in response to a preset closing time, and control the bar screen to enter a closed state according to the closing control signal; and the processor is configured to: determine whether the current time reaches the closing time, and send the closing control signal to the power supply control circuitry when the current time reaches the closing time.