Track power supply electronic price tag device based on resistance wire positioning

Abstract

A track power supply electronic price tag device based on resistance wire positioning belongs to the technical field of electronic price tags and comprises a power supply track, a resistance wire, a plurality of electronic price tag bodies, a data acquisition module, a data sending module and a data receiving module. The data acquisition module and the data sending module are application software installed in the electronic price tag body, and the data receiving module is application software installed in the control system; the power supply track and the resistance wire are installed together, and the electronic price tag body and the power supply track are installed together in a sliding mode. The method only depends on local electrical parameter measurement, so that the hardware cost is reduced; the user can move the electronic price tag at will, and the system can still accurately identify the new position; the method is suitable for standardized goods shelf batch installation; the anti-interference capability is strong, and compared with wireless positioning, the method is not influenced by electromagnetic noise and shielding; and wireless signals do not need to be continuously transmitted for positioning. In conclusion, the method has a good application prospect.

Description

Technical Field

[0001] This invention relates to the field of electronic price tag technology, and in particular to a track-powered electronic price tag device based on resistance wire positioning. Background Technology

[0002] Electronic Shelf Labels (ESLs) are intelligent devices that use electronic display technology to replace traditional paper labels. They connect to the back-end management system via wireless communication technology to display real-time data such as product prices, promotional information, and inventory status. They are widely used in the retail industry, warehousing and logistics, and chain stores. Their core uses low-power electronic ink screens (E-Ink) or liquid crystal displays (LCDs) to ensure long battery life. The main functions and advantages are as follows: (1) Real-time updates: Price changes can be synchronized with one click in the back-end, avoiding errors caused by manual replacement; (2) Cost reduction and efficiency improvement: Reduces paper waste and labor costs, improving operational efficiency; (3) Interactive marketing: Supports displaying QR codes, promotion countdowns, etc., enhancing customer experience; (4) Environmental protection and sustainability: The paperless design conforms to the trend of green retail.

[0003] With the expansion of application scenarios, users have put forward higher requirements for the location traceability of electronic shelf labels (for example, the staff in the management room need to know the location of the corresponding product through the electronic shelf label back-end management system). The current mainstream electronic shelf label positioning methods include: (1) QR code / NFC label positioning: The disadvantage is that each electronic shelf label position needs to be preset with a QR code / NFC label, and the QR code / NFC label installed on the electronic shelf label needs to be manually aligned. It does not support free sliding and moving position (it can only locate fixed products); (2) Bluetooth / UWB wireless positioning: The disadvantage is that the cost is high, the power consumption is high, and it is easily blocked by other objects, causing signal interference; (3) Address coding track: The position is determined by digital coding. The disadvantage is that it requires complex communication protocols and control circuits. In summary, the above solutions generally have the problems of high cost, poor flexibility, or inability to support continuous movement positioning. Therefore, there is an urgent need for an electronic shelf label positioning device that is simple in structure, low in cost, supports free sliding, and can sense the position in real time. Summary of the Invention

[0004] To overcome the shortcomings of existing electronic price tag positioning mechanisms, as described in the background section, this invention provides a track-powered electronic price tag device based on resistance wire positioning. This device achieves positioning without additional communication through the combined action of related mechanisms, and features free sliding and automatic identification, simple structure, easy deployment, strong anti-interference capability, and energy-saving and environmentally friendly functions.

[0005] The technical solution adopted by this invention to solve its technical problem is: A track-powered electronic price tag device based on resistance wire positioning includes a power supply track, a resistance wire, and an electronic price tag body. It also includes a data acquisition module, a data transmission module, and a data receiving module. Multiple electronic price tag bodies are included. The data acquisition and transmission modules are application software installed within the main control system of the electronic price tag body, while the data receiving module is application software installed within the electronic price tag service station control system. The power supply track has a groove, and each electronic price tag body has a slider. Contact conductive strips are fixedly installed on both sides of the groove, and the resistance wire is fixedly installed between two conductive strips. Each electronic price tag body's slider is fixedly equipped with at least two conductive contacts and resistive contacts. The sliders of multiple electronic price tag bodies are slidably installed in the groove of the power supply track at intervals. The two conductive contacts of each electronic price tag body are electrically connected to the power input terminal of the electronic price tag body, and the resistive metal contacts of each electronic price tag body are electrically connected to the signal input terminal of the main control system of the electronic price tag body.

[0006] Furthermore, the resistance wire, conductive strip, and power supply track are of the same length.

[0007] Furthermore, the two conductive contacts and two conductive strips of each electronic price tag body are in sliding electrical contact, and the resistive contacts and resistance wire of the electronic price tag body are in sliding electrical contact.

[0008] Furthermore, the data acquisition module can receive the voltage at the position of a section of resistance wire contacted by the resistive contact of each electronic price tag body, and transmit the data to the data transmission module. The data transmission module processes the data and uploads it wirelessly to the electronic price tag backend management system.

[0009] Furthermore, the data receiving module can wirelessly receive voltage data sent by multiple electronic shelf label body data sending modules, convert the voltage data into resistance data, and then convert the resistance value into specific location data of the electronic shelf label body, enabling remote monitoring and management. The data receiving module can also be linked with the CMS system; upon detecting a change in the position of the corresponding electronic shelf label, it can automatically prompt whether product information needs to be updated. Furthermore, the higher the voltage data received by the data receiving module, the lower the resistance value of the resistance wire, and the closer the electronic price tag body is to the power supply side of the power supply track resistance wire. Conversely, the lower the voltage data received by the data receiving module, the higher the resistance value of the resistance wire, and the farther the electronic price tag body is from the power supply side of the power supply track resistance wire.

[0010] Compared with existing technologies, the advantages of this invention are: (1) Positioning can be achieved without additional communication: relying solely on local electrical parameter measurement reduces hardware costs; (2) Supports free sliding and automatic identification: users can move electronic price tags at will, and the system can still accurately identify their new positions; (3) Simple structure and easy deployment: suitable for batch installation on standardized shelves; (4) Strong anti-interference capability: compared with wireless positioning, it is not affected by electromagnetic noise or obstruction; (5) Energy-saving and environmentally friendly: no need to continuously transmit wireless signals for positioning. In summary, this invention has good application prospects. Attached Figure Description

[0011] Figure 1 This is a partial structural schematic diagram of the present invention.

[0012] Figure 2 , 3 This is a schematic diagram of the overall structure of the present invention. Detailed Implementation

[0013] Figure 1 , 2 As shown in Figure 3, a track-powered electronic price tag device based on resistance wire positioning includes a power supply track 1, a resistance wire 3, an electronic price tag body 4, a data acquisition module, a data transmission module, and a data receiving module. Multiple electronic price tag bodies 4 are included. The data acquisition module and data transmission module are application software installed within the main control system of the electronic price tag body 4, and the data receiving module is application software installed within the electronic price tag service station control system. The lower part of the power supply track 1 has a slide groove 101 (the upper slide groove and the fixing plate at the shelf position are fixed together). Each electronic price tag body 4 has a slider 41 at its upper end. A copper metal contact conductive strip 2 is horizontally and insulatedly installed in the middle of the front and rear sides of the lower slide groove 101. The resistance wire 3 is horizontally and insulatedly installed between the two conductive strips 2. The slider 41 of each set of electronic price tags has two conductive copper metal contacts 411 insulated and fixedly installed on the middle of its front and rear sides, and a resistive copper metal contact 412 insulated and fixedly installed on the middle of the upper side of the slider of each set of electronic price tags. The upper ends of the sliders 41 of multiple sets of electronic price tags are slidably fitted into the grooves 101 of the power supply track 1 at intervals. The inner sides of the two conductive metal contacts 411 of each set of electronic price tags are connected to the two power input terminals of the electronic price tag 4 via wires. The lower side of the resistive metal contacts 412 of each set of electronic price tags is connected to the main control system signal input terminal of the electronic price tag 4 via wires. The outer sides of the two conductive contact strips 101 are connected to the two poles of the DC 12V power supply via wires. The outer side of the resistance wire 3 is connected to the positive pole of the DC 12V power supply via wires.

[0014] Figure 1 , 2As shown in Figure 3, the resistance wire 3, conductive strip 2, and power supply track 1 have the same length. The outer sides of the two conductive metal contacts 411 of each electronic shelf label body and the two conductive strips 2 make sliding electrical contact, and the upper side of the resistive metal contact 412 of the electronic shelf label body makes sliding electrical contact with the lower end of the resistance wire 3. The data acquisition module can receive the voltage at the position where the resistive metal contact 412 of each electronic shelf label body contacts a section of the resistance wire 3, and transmit the data to the data transmission module. The data transmission module processes the data and uploads it to the electronic shelf label backend management system wirelessly (such as via Wi-Fi, ZigBee, or Sub-GHz). The data receiving module can wirelessly receive voltage data from multiple electronic shelf label data transmitting modules, convert the voltage data into resistance data, and then convert the resistance value into specific location data of the electronic shelf label, enabling remote monitoring and management. The data receiving module can also be linked with the CMS system to divide the track into multiple sections (e.g., every 10cm) and establish a "moving position - product area" mapping table. Based on the measured position of the electronic shelf label, the module can look up the table to determine its own section, complete the positioning, and then prompt whether to update the product information (the higher the voltage data received by the data receiving module, the lower the resistance value of the resistance wire, and the closer the electronic shelf label is to the power supply side of the power supply track resistance wire; the lower the voltage data received by the data receiving module, the higher the resistance value of the resistance wire, and the farther the electronic shelf label is from the power supply side of the power supply track resistance wire).

[0015] Figure 1 , 2As shown in Figures 1 and 3, the usage process of this invention is as follows: (1) The staff adjusts the position of one or more electronic price tag bodies horizontally left or right according to the position of the corresponding product so that they are located at the top of the corresponding product. (2) The DC 12V power supply supplies power to each electronic price tag body 4 through two contact conductive strips 2 and two conductive metal contacts 411 of each electronic price tag body. The upper resistive metal contact 412 of each electronic price tag body 4 contacts a corresponding section of the resistive wire 3. The data acquisition module receives the voltage data at the position of the section of resistive wire 3 contacted by the upper side of the resistive metal contact 412 of each electronic price tag body, and outputs the data to the data transmission module after preliminary processing. The data transmission module transmits the data wirelessly (such as Wi-Fi, ZigBee, Sub-GHz). After receiving voltage data wirelessly from multiple electronic shelf label data transmission modules, the data receiving module converts the voltage data into resistance data (the higher the voltage received by the data receiving module, the lower the resistance value of the resistance wire, and the closer the electronic shelf label is to the power supply side of the power supply track resistance wire; the lower the voltage received by the data receiving module, the higher the resistance value of the resistance wire, and the farther the electronic shelf label is from the power supply side of the power supply track resistance wire). Based on the resistance value, the module converts this into specific location data for the electronic shelf label, which is then displayed on a screen, enabling remote monitoring and management. Specifically, the data receiving module can also be linked with the CMS system; upon detecting changes in the position of the corresponding electronic shelf label, it can automatically prompt whether product information needs to be updated.

[0016] The foregoing has shown and described the basic principles and main features of the present invention, as well as its advantages. It will be apparent to those skilled in the art that the present invention is limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or basic characteristics. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within the present invention.

[0017] Furthermore, it should be understood that although this specification describes the embodiments, the embodiments do not necessarily contain only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in the embodiments can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A track-powered electronic price tag device based on resistance wire positioning, comprising a power supply track, a resistance wire, and an electronic price tag body, characterized in that, It also has a data acquisition module, a data sending module, a data receiving module, and multiple sets of electronic price tags; The data acquisition module and data transmission module are application software installed in the main control system of the electronic price tag body, and the data receiving module is application software installed in the control system of the electronic price tag service station. The power supply track has a groove, each electronic price tag body has a slider, and contact conductive strips are fixedly installed on both sides of the groove, with a resistance wire fixedly installed between the two conductive strips. Each set of electronic price tag bodies has at least two conductive contacts and resistive contacts fixedly installed on its slider. The sliders of multiple sets of electronic price tag bodies are slidably installed in the grooves of the power supply track at intervals. The two conductive contacts of each set of electronic price tags are electrically connected to the power input terminal of the electronic price tag body, and the resistive metal contacts of each set of electronic price tags body are electrically connected to the signal input terminal of the main control system of the electronic price tag body.

2. The track-powered electronic price tag device based on resistance wire positioning according to claim 1, characterized in that, The resistance wire, conductive strip, and power supply track are of the same length.

3. The track-powered electronic price tag device based on resistance wire positioning according to claim 1, characterized in that, Each set of electronic price tags has two conductive contacts and two conductive strips that make sliding electrical contact, and two resistive contacts and a resistance wire that make sliding electrical contact.

4. The track-powered electronic price tag device based on resistance wire positioning according to claim 1, characterized in that, The data acquisition module can receive the voltage at the position of the resistance wire contacted by the resistive contact of each electronic price tag body, and transmit the data to the data transmission module. The data transmission module processes the data and uploads it to the electronic price tag back-end management system wirelessly.

5. A track-powered electronic price tag device based on resistance wire positioning according to claim 1, characterized in that, The data receiving module can wirelessly receive voltage data sent by multiple electronic shelf label data sending modules, convert the voltage data into resistance data, and then convert the resistance value into specific location data of the electronic shelf label, enabling remote monitoring and management. The data receiving module can also be linked with the CMS system to detect changes in the position of the corresponding electronic shelf label and automatically prompt whether the product information needs to be updated.

6. The track-powered electronic price tag device based on resistance wire positioning according to claim 5, characterized in that, The higher the voltage data received by the data receiving module, the lower the resistance value of the resistance wire, and the closer the electronic price tag body is to the power supply side of the power supply track resistance wire. Conversely, the lower the voltage data received by the data receiving module, the higher the resistance value of the resistance wire, and the farther the electronic price tag body is from the power supply side of the power supply track resistance wire.

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