Abstract: A guide rail for installing an ultra-thin EPD electronic shelf label is provided and includes: upper and lower ends of a guide rail body are integrally connected to a snap elastic arm and an anti-disassembly-damage elastic arm, respectively; an upper snap is located on the snap elastic arm, and a lower snap is integrally connected to the anti-disassembly-damage elastic arm; the upper snap and the lower snap are used to clamp the electronic shelf label on the guide rail; the snap elastic arm and the anti-disassembly-damage elastic arm are used to provide elastic spaces for the upper snap and the lower snap; an anti-slip soft rubber is disposed on a side of the guide rail body where the electronic shelf label is installed; the mounting pendant is disposed on a side of the guide rail body facing away from the electronic shelf label.

Abstract: The present disclosure provides a locating method and a locating system for a smart shopping cart, a computer device and a storage medium. The method includes: constructing a locating fingerprint database of an smart shopping cart based on commodity attributes collected by an intelligent device and shelf label heartbeat signals received by a communication module; when a motion sensor obtains the motion data of the shopping cart body, the communication module sends all shelf label heartbeat signals received within a second preset time window to a server; the server matches all the shelf label heartbeat signals received within the second preset time window with the locating fingerprint database to obtain locating information of the smart shopping cart.

Abstract: The present disclosure discloses an electronic shelf label, including: at a position outside a PCB of the electronic shelf label, a passive NFC antenna that does not have an electrical connection with an existing NFC antenna is added, and the passive NFC antenna is coupled with the existing NFC antenna. The present disclosure improves the NFC signal strength and NFC field strength distribution both of which are near the electronic shelf label screen, in the case that the size of the electronic shelf label is limited and the NFC antenna is shielded by the screen, battery, structural parts, etc, thereby improving NFC communication distance, effective sensing area, trigger response speed and other performance of the shelf label.

Abstract: An electronic shelf label, including: a TFT substrate integrated with an NFC coil, wherein the NFC coil is configured to realize an NFC function and is connected to an IC or an FPC to drive and control the NFC coil. In examples, the NFC function is integrated into the TFT substrate, so that the size of an FPC or a PCB can be reduced, which not only makes the electronic shelf label thinner and lighter, but also realizes the NFC function without increasing the cost of the FPC or the PCB.

Abstract: The present disclosure provides a solar electronic shelf label, including a rear shell, a front part of which is provided with a screen. A control panel is disposed between the rear shell and the screen, and a control signal output terminal of the control panel is connected to a control terminal of the screen. The rear shell is provided with a solar panel, and is formed with a wiring groove extended to an end face of the front part of the rear shell. A lead is arranged in the wiring groove, the solar panel is connected to the control panel through the lead, and the control panel is connected to the screen. The present disclosure solves the technical problem that the service life of the electronic shelf label is affected by the limited battery capacity.

Abstract: An electronic shelf label communication system and method. The system includes a processor, a plurality of wireless access points and an electronic shelf label. The electronic shelf label is configured to actively send a heartbeat data package to the plurality of wireless access points after periodically waking up. Each of the plurality of wireless access points is configured to: receive the heartbeat data package of the electronic shelf label, obtain signal strength data when the heartbeat data package of the electronic shelf label is received, and send the signal strength data to the processor. The processor is configured to: receive the signal strength data corresponding to the heartbeat data package sent by the plurality of wireless access points, and determine an optimal wireless access point corresponding to the electronic shelf label according to the signal strength data.

Abstract: The present disclosure provides an electronic shelf label, including a rear shell (1), a screen (4), a protective sheath (5) and a lens (6). The protective sheath (5) is sheathed on an outer side of the screen (4), an accommodation groove (101) is formed on the rear shell (1), and the screen (4) is disposed in the accommodation groove (101). The lens (6) is disposed to cover a groove opening of the accommodation groove (101) and is connected to an edge of the rear shell (1). A portion of the protective sheath (5) located at an edge of a display port of the screen (4) is supported between the lens (6) and the screen (4), so that a press-resistant gap (8) is reserved between the lens (6) and the screen (4). The present disclosure solves the technical problems that the electronic shelf label is easy to be damaged and the use effect is poor.

Abstract: Provided are a display content updating method and apparatus, a device, and a medium, relating to the field of screen display technologies. The display content updating method includes: acquiring a color region included in a multi-color image and a color type corresponding to the color region; converting the multi-color image into multiple pieces of refresh image data and refresh instructions corresponding to the multiple pieces of refresh image data according to positions and color types of color regions in the multi-color image, where different refresh instructions are executed asynchronously; and sending the refresh instructions and the multiple pieces of refresh image data to a controller of an electronic paper screen so that the controller refreshes the display content of the electronic paper screen based on the refresh instructions and the corresponding multiple pieces of refresh image data.

Abstract: Disclosed are a control method for electronic price tags, an electronic price tag and an electronic price tag system. The control method comprises: receiving at least one first service instruction by a wireless communication module, and receiving at least one second service instruction by a short-distance communication module; and performing, by a fusion processing module, fusion processing on the at least one first service instruction and the at least one second service instruction, which are of a same service type and have an effective duration overlap therebetween, to enable a response module to respond synchronously according to control parameters obtained after fusion processing.

Abstract: A method for generating display information of an electronic price tag includes: comparing supported colors of the electronic price tag with a display color of each pixel in each to-be-displayed region, and dividing the each to-be-displayed region into a to-be-adjusted display region and a normal display region according to a comparison result; determining a target color of each pixel from the supported colors of the electronic price tag according to a display color of the each pixel in the to-be-adjusted display region; generating a rendering result of to-be-displayed information according to the target color of the each pixel in the to-be-adjusted display region and a display color of each pixel in the normal display region, and sending the rendering result of the to-be-displayed information to the electronic price tag so that the electronic price tag displays the rendering result of the to-be-displayed information.

Abstract: Provided are a display content updating method and apparatus, a device, and a medium, relating to the field of screen display technologies. The display content updating method includes: acquiring a color region included in a multi-color image and a color type corresponding to the color region; converting the multi-color image into multiple pieces of refresh image data and refresh instructions corresponding to the multiple pieces of refresh image data according to positions and color types of color regions in the multi-color image, where different refresh instructions are executed asynchronously; and sending the refresh instructions and the multiple pieces of refresh image data to a controller of an electronic paper screen so that the controller refreshes the display content of the electronic paper screen based on the refresh instructions and the corresponding multiple pieces of refresh image data.

Abstract: The present disclosure provides a communication method of an electronic shelf label system, a system, a computer device and a storage medium. The method includes: configuring, by a server, an offset of each of base stations in a corresponding synchronization sub-network based on neighboring relationships between all the base stations in each of the synchronization sub-networks, so that each of the base stations calculates synchronization frame transmission time in a predetermined signal transmission cycle based on the offset; calculating, by each of the base stations, idle time in a synchronization channel based on the synchronization frame transmission time, so that each of the base stations receives a target synchronization frame sent by a superior base station in the idle time of the synchronization channel. According to the present disclosure, the synchronization frames sent by all the base stations has central and adjacent feature in time.

Abstract: This disclosure provides a method of dynamically adjusting timing between adjacent networks in a synchronous network and an electronic shelf label system. The method includes: determining, by a server, a timing adjustment direction and a timing adjustment value of a current network based on an interference timing relationship diagram; generating, by the server, a corresponding adjustment task form the timing adjustment direction and the timing adjustment value of the current network, and sending the adjustment task to a master base station in the current network in the processing of each of the current networks, such that the master base station and a secondary base station dynamically adjust timing based on the adjustment task.

Abstract: The present disclosure provides a map information acquisition method and a map acquisition apparatus and a non-transitory computer-readable storage medium. The method comprises: acquiring and constructing, by a map acquisition apparatus, map data, and acquiring, by the map acquisition apparatus, shelf identity information of each of shelves, wherein the shelf identity information is in one-to-one correspondence with the shelves, wherein the map acquisition apparatus comprises: a shopping cart component provided with a map construction system and a radio frequency identification reader; and marking, by the map acquisition apparatus, the map data according to each of the shelf identity information, and generating, by the map acquisition apparatus, map information marked with multiple pieces of shelf identity information.

Abstract: A positioning method for an electrical shelf label, a computer device, and a non-transitory computer readable storage medium. The method includes: obtaining, by a server, a candidate electronic shelf label with a fuzzy positioning result; sequentially executing, by each of the candidate-matching shelf label pairs, a distance measurement task according to the distance measurement instruction to obtain a measured distance between the candidate electronic shelf label and each of the matching electronic shelf labels; revising, by the server, the fuzzy positioning result of the candidate electronic shelf label based on all the measured distances to determine an actual positioning result for the candidate electronic shelf label.

Abstract: A shelf label communication method based on a synchronous network, a shelf label system and a computer device are provided. The synchronous network includes a base station topological structure, including a master base station, a first-level secondary base station directly connected to the master base station, and a (i+1)th-level secondary base station directly connected to an ith-level secondary base station, and each base station being connected to only one superior base station. The first-level secondary base station obtains a first synchronization signal from the master base station, so the first-level secondary base station starts to operate according to system time of the master base station. Further, the (i+1)th-level secondary base station obtains a second synchronization signal from the ith-level secondary base station, so that the (i+1)th-level secondary base station starts to operate according to local system time of the ith-level secondary base station.

Abstract: A method and a system for electronic shelf label network access and roaming communication are disclosed in the present disclosure. The present disclosure greatly improves the success rate of a background server in selecting an optimal base station to timely communicate with an electronic shelf label that has newly entered a coverage area of an electronic shelf label system or moved, and ensures the reliability and stability of the communication between the background server and the electronic shelf label.

Abstract: The disclosure discloses a method, an apparatus and a robot for out-of-stock detection of shelf commodity. The method includes: acquiring a plurality of shelf RGB images and a plurality of shelf depth images; executing an out-of-stock area detection step to obtain all vacant areas in the shelf for shelf RGB images and shelf depth images; stitching the shelf RGB images into a complete shelf image, merging and de-duplicating on all vacant areas and detection boxes of commodities, shelf label and layer lattice, and mapping them to the complete shelf image; generating a shed grid area corresponding to each commodity for the complete shelf image, and dividing all vacant areas in the shelf based on the shed grid area; and determining an out-of-stock detection result of each commodity based on the position information and the depth information of the vacant area and the shed grid area.

Abstract: The disclosure provides a shelf label communication method based on a synchronous network, a shelf label system and a computer device. In the method, an electronic shelf label establishes a first timing task of a timer when receiving a timing service instruction; determines a timing duration of the first timing task based on a time difference between current local system time when the timing service instruction is received and the instruction execution system time, and starts the first timing task; the electronic shelf label cyclically calibrates a current timing duration in the first timing task based on the periodically received base-station system time, to obtain the calibrated current timing duration.