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: The embodiments of the present disclosure disclose a video playback apparatus and a video playback method. The video playback apparatus includes: an image sensor, a plurality of strip-shaped displays arranged in a first direction, and a processor connected to each of the strip-shaped displays and the image sensor, respectively, wherein the strip-shaped displays are configured to display information for associated items; the image sensor is configured to acquire image information for a user who moves in the first direction and a direction opposite to the first direction and browses the associated items; and the processor is configured to dynamically control display brightness of the plurality of strip-shaped displays according to the image information for the user, wherein brightness of one of the strip-shaped displays close to the user is greater than brightness of another one of the strip-shaped displays away from the user.

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 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 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: A communication method, a communication apparatus, and a non-transitory computer readable storage medium storing a computer program are disclosed. In the communication method, a plurality of predetermined frequency points are monitored to determine whether a target group has been established. In response to no target group being established, a target group is established; and from a plurality of transmission time slots for the target group, a first transmission time slot is determined for a terminal device. Then, the terminal device transmits a data message in the first transmission time slot.

Abstract: The disclosure provides a calling method and system and an electronic price tag device. The calling method includes steps of: the electronic price tag device generating request information according to an operation instruction of a user and sending the request information including first position information of the electronic price tag device to a server; the server determining a shopping guide terminal corresponding to the first position information according to the first position information; and the server sending calling information including the first position information to the shopping guide terminal corresponding to the first position information.

Abstract: The embodiments of the present disclosure disclose a video playback apparatus and a video playback method. The video playback apparatus includes: an image sensor, a plurality of strip-shaped displays arranged in a first direction, and a processor connected to each of the strip-shaped displays and the image sensor, respectively, wherein the strip-shaped displays are configured to display information for associated items; the image sensor is configured to acquire image information for a user who moves in the first direction and a direction opposite to the first direction and browses the associated items; and the processor is configured to dynamically control display brightness of the plurality of strip-shaped displays according to the image information for the user, wherein brightness of one of the strip-shaped displays close to the user is greater than brightness of another one of the strip-shaped displays away from the user.

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 communication method, a communication apparatus, and a non-transitory computer readable storage medium storing a computer program are disclosed. In the communication method, a plurality of predetermined frequency points are monitored to determine whether a target group has been established. In response to no target group being established, a target group is established; and from a plurality of transmission time slots for the target group, a first transmission time slot is determined for a terminal device. Then, the terminal device transmits a data message in the first transmission time slot.