Mobile electronic tag based on two-wire system carrier circuit and working method

Abstract

The invention relates to the technical field of warehouse logistics tags, in particular to a mobile electronic tag based on a two-wire system carrier circuit and a working method, and the mobile electronic tag comprises an electronic tag, a guide rail and a junction box; the electronic tag is slidably connected with the guide rail, and a connecting strip is arranged on the inner side of the guide rail and connected with a contact of the electronic tag. Junction boxes are arranged at the two ends of the guide rail, circuit connectors, wiring terminals and fixing blocks are arranged on the sides, facing the guide rail, of the junction boxes, the circuit connectors are correspondingly connected with connecting strips of the guide rail, and the fixing blocks are used for being fixedly connected with the guide rail. A wire connecting hole is formed in the side, away from the guide rail, of the junction box, an external cable penetrates into the junction box through the wire connecting hole to be connected with the wiring terminal, the wiring terminal is connected with the circuit connector through a wire, and electric signals transmitted by the external cable are transmitted into the electronic tag through the wiring terminal, the wire, the circuit connector, the connecting strip and the contact in sequence. Position adjustment is realized by using the electronic tag sliding in the guide rail, the efficiency of position adjustment is improved, and the extra loss of the cable is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of warehousing and logistics labels, and in particular to a mobile electronic label based on a two-wire carrier circuit and a working method. Background Art

[0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art.

[0003] PTL electronic tags are intelligent devices used in modern warehousing and logistics management. They are typically used in conjunction with PTL (Pick-to-Light) systems to improve the efficiency and accuracy of sorting, inventory management, and other processes. The power signal circuit of a PTL electronic tag typically uses a four-wire serial data transmission cable or a two-wire carrier transmission cable, typically secured with screw-type or needle-type cable connections.

[0004] When the position of goods on the shelf needs to be adjusted, the position of the electronic tag will also be adjusted, requiring the cable to be relocated and reconnected. When using the needle-piercing cable connection method, the repositioned electronic tag will re-pierce the cable at the required location to establish the connection between the cable and the electronic tag. When using the screw-on method, the cable power supply needs to be disconnected, the electronic tag removed and moved to the new location, and then the electronic tag and cable are reconnected using screws.

[0005] Due to the large number of items and electronic tags to be organized, the use of a needle-piercing cable fixing method for electronic tags would leave excessive needle marks on the cable due to repeated adjustments at different positions and distances. These needle marks would penetrate the cable insulation and reach the conductor. When there are too many needle marks, it is easy to cause poor cable contact and other safety hazards. If the cable is tightened with screws, although there is no safety hazard, the adjustment of electronic tags requires repeated removal and installation of screws, which is a huge workload. Summary of the Invention

[0006] To address the technical issues presented in the aforementioned background art, the present invention provides a mobile electronic tag and operating method based on a two-wire carrier circuit. This utilizes an electronic tag that slides within a guide rail to achieve position adjustment, reducing the workload associated with repeated installation and removal of fasteners using traditional screw crimping methods and avoiding the rapid cable wear associated with needle-piercing cable connections. Junction boxes at each end of the rail allow rails of varying lengths to be spliced ​​and reused, significantly reducing rail wear during initial installation.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] A first aspect of the present invention provides a mobile electronic tag based on a two-wire carrier circuit, comprising an electronic tag, a guide rail, and a junction box; the electronic tag is slidably connected to the guide rail, and a connecting strip is provided on the inner side of the guide rail, and the connecting strip is connected to the contact of the electronic tag;

[0009] There are junction boxes at both ends of the guide rail. The side of the junction box facing the guide rail is provided with circuit connectors, wiring terminals and fixed blocks. The circuit connectors are correspondingly connected to the connecting strips of the guide rail, and the fixed blocks are used to be fixedly connected to the guide rail. A wire connection hole is provided on the side of the junction box away from the guide rail. The external cable passes through the wire connection hole into the junction box and is connected to the wiring terminal. The wiring terminal is connected to the circuit connector through the wire, and the electrical signal transmitted by the external cable is transmitted to the inside of the electronic tag through the wiring terminal, wire, circuit connector, connecting strip and contact in sequence.

[0010] Furthermore, two groups of contacts arranged in parallel are provided on the top of the electronic tag, and each group of contacts abuts against a corresponding connecting strip in the guide rail.

[0011] Furthermore, the guide rail has a U-shaped cross section, including a top plate and a bottom plate arranged in parallel, and one end of the top plate and the bottom plate are connected together through a vertical plate.

[0012] Furthermore, the connecting strips have two groups arranged in parallel, and each group of connecting strips abuts against corresponding contacts in the electronic tag to transmit electrical signals to the electronic tag.

[0013] Furthermore, the cross section of the connecting strip has a groove, and the contact of the electronic tag has a protrusion, and the shape of the protrusion matches the shape of the groove.

[0014] Furthermore, the connecting strips are arranged along the length direction of the guide rails and are provided on the inner surface of the top plate and / or the vertical plate.

[0015] Furthermore, the top plate, bottom plate and vertical plate of the guide rail are made of insulating materials, and the connecting strips are made of conductive materials.

[0016] Furthermore, the circuit connector is located on a side of the junction box facing the guide rail, the wiring terminal is located in a space below the circuit connector, and the fixing block is located in a space below the wiring terminal.

[0017] Furthermore, the surface of the guide rail bottom plate is provided with fixing holes for connecting with the fixing seat of the electronic tag and the fixing block of the junction box through fasteners.

[0018] A second aspect of the present invention provides an operating method for a mobile electronic tag based on a two-wire carrier circuit, comprising:

[0019] External electrical signals are transmitted to the terminal blocks via external cables, and then pass through the wires, circuit connectors, connecting strips, and contacts before being transmitted to the electronic tags. The electronic tags respond to the electrical signals and send out corresponding information to achieve inventory management.

[0020] When the position of the goods changes, the electronic tag slides along the length of the guide rail to adjust the corresponding position. During this period, the contact maintains sliding contact with the connecting strip.

[0021] Compared with the existing technology, one or more of the above technical solutions have the following beneficial effects:

[0022] 1. When the position of the goods needs to be adjusted, the corresponding electronic tag can be repositioned by sliding it along the guide rail. Alternatively, the junction box at one end of the guide rail can be removed, the electronic tag can be removed from the guide rail, and then replaced in the next position. During the adjustment, there is no need to change the layout of external cables or add or remove cables, reducing the workload of adjusting the electronic tag. Furthermore, since the cable is not needle-pierced, it will not damage the cable insulation layer, eliminating the safety risks associated with traditional needle-pierced cable fixing methods.

[0023] 2. The guide rail has a simple structure and is easy to manufacture. Compared with electronic tags, it has a lower cost. During the initial installation, the length of the guide rail can be adjusted (for example, shortened) according to the actual shelf length requirements. If multiple guide rails need to be spliced, the two ends of each guide rail can be connected to the junction box, and then the adjacent junction boxes can be connected using cables. That is, the two ends of the cable pass through the wire connection holes of the adjacent junction boxes and are connected to the corresponding wiring terminals, thereby realizing the electrical signal docking after the guide rails are spliced. The method of docking the guide rails with junction boxes can make it possible to splice multiple guide rails of different lengths into the required length without affecting the path of electrical signal transmission, greatly reducing the loss during the installation of the guide rails and saving installation costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0025] Figure 1 is a schematic diagram of an electronic tag provided by one or more embodiments of the present invention being applied to a shelf;

[0026] Figure 2 This is a schematic diagram of the overall structure of a mobile electronic tag based on a two-wire carrier circuit provided by one or more embodiments of the present invention;

[0027] Figure 3 is a schematic diagram of a top view of the structure of an electronic tag provided by one or more embodiments of the present invention;

[0028] Figure 4 is a schematic diagram of the main structure of an electronic tag provided by one or more embodiments of the present invention;

[0029] Figure 5is a schematic diagram of the bottom-up structure of an electronic tag provided by one or more embodiments of the present invention;

[0030] Figure 6 is a schematic structural diagram of a guide rail provided by one or more embodiments of the present invention from a main viewing angle;

[0031] Figure 7 is a schematic diagram of a cross-sectional structure of a guide rail provided by one or more embodiments of the present invention from a side perspective;

[0032] Figure 8 This is a schematic diagram of the structure of the junction box in direction A provided by one or more embodiments of the present invention;

[0033] Figure 9 is a schematic diagram of the main structure of a junction box provided by one or more embodiments of the present invention;

[0034] Figure 10 This is a schematic diagram of the B-direction structure of a junction box provided by one or more embodiments of the present invention;

[0035] Figure 11 It is a schematic diagram of the structure of the junction box and the guide rail provided by one or more embodiments of the present invention after being matched.

[0036] Figure 1 Middle: 10. Shelves, 20. Goods, 30. Electronic tag assembly, 40. Acupuncture cable connection mechanism, 50. Cable compression mechanism, 60. Circuit movement mechanism;

[0037] Figure 2 Middle: 1. Electronic label, 2. Guide rail, 3. Junction box;

[0038] Figure 3-Figure 5 Middle: 11. First contact, 12. Second contact, 13. Fixed seat;

[0039] Figure 6-Figure 7 Middle: 21. First connecting bar, 22. Second connecting bar, 23 fixing hole;

[0040] Figures 8-11 Middle: 31. Circuit connector, 32. Fixing block, 33. Wire, 34. Terminal block, 35. Wire connection hole, 36. External cable. DETAILED DESCRIPTION

[0041] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0042] It should be noted that the following detailed descriptions are exemplary and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which the present invention belongs.

[0043] Explanation of terms:

[0044] Two-wire carrier communication (TCC) utilizes existing two-wire transmission lines (such as power lines and telephone lines) to simultaneously transmit power and communication signals. It achieves data communication through high-frequency carrier modulation, eliminating the need for additional communication lines. It is widely used in fields such as power generation, industrial automation, and smart homes. The data signal is modulated onto a high-frequency carrier (e.g., tens of kHz to several MHz), sharing the same pair of conductors with the low-frequency power signal (50 / 60 Hz). Modulation methods commonly used include FSK (Frequency Shift Keying), PSK (Phase Shift Keying), or OFDM (Orthogonal Frequency Division Multiplexing).

[0045] The electronic tags involved in this solution apply two-line carrier communication technology to PTL electronic tags for modern warehousing and logistics management.

[0046] Example 1:

[0047] As described in the background technology, when the position of the goods on the shelf needs to be adjusted, the position of the electronic tag will also be adjusted accordingly. In addition to the needle-piercing cable connection and screw-crimping cable connection methods, the position adjustment can also be achieved by moving the electronic tag.

[0048] This embodiment uses Figure 1 As shown, the connection methods of electronic tags and cables under three connection methods are introduced. Goods 20 of different sizes are arranged on the shelf 10. According to the difference in the size of the goods, the shelf is divided into three layers A, B, and C. Each layer of the shelf 10 is provided with an electronic tag assembly 30. Among them, the C layer shelf 10 is provided with a circuit moving mechanism 60 for supporting the movement of the electronic tag; the B layer shelf 10 is provided with a cable clamping mechanism 50 for realizing the connection between the electronic tag and the cable by screw clamping; the A layer shelf 10 is provided with a needle cable connection mechanism 40 for supporting the connection between the electronic tag and the cable by needle puncture.

[0049] This embodiment provides a mobile electronic tag based on a two-wire carrier circuit, and its specific structure includes the electronic tag component 30 and the circuit moving mechanism 60 mentioned above.

[0050] like Figure 2 As shown, the mobile electronic tag based on the two-wire carrier circuit includes an electronic tag 1 slidably connected to a guide rail 2 , and junction boxes 3 are provided at both ends of the guide rail 2 .

[0051] With this structure, the guide rail 2 is arranged on any shelf. When the position of the goods on the shelf changes, the electronic tag 1 can slide within the guide rail 2 to the position corresponding to the goods, thereby achieving position adjustment.

[0052] like Figure 3-Figure 5 As shown, the top of the electronic tag 1 is provided with a first contact 11 and a second contact 12 arranged in parallel, and a fixing seat 13 is provided at the bottom. The two contacts are used to cooperate with the connection in the guide rail to realize the transmission of power and signals. The fixing seat 13 at the bottom is used to fix the electronic tag 1 in the guide rail through fasteners.

[0053] In this embodiment, the first contact 11 and the second contact 12 are made of a conductive material that protrudes from the top surface of the electronic tag 1, and the contacts themselves have a certain degree of elasticity (for example, they can be made of elastic metal). The contacts are correspondingly engaged with the connecting strips in the guide rail 2. At the same time, the height dimension of the electronic tag 1 is adapted to the width of the guide rail 2, which can ensure that the electronic tag 1 will not detach from the guide rail 2 during sliding. After moving to the set position, the fixing seat 13 at the bottom is used to complete the fixation between the electronic tag 1 and the guide rail 2.

[0054] In this embodiment, the first contacts 11 and the second contacts 12 are staggered with a set interval to ensure convenient installation.

[0055] During installation, the electronic tag 1 is loaded from one end of the guide rail 2 , and after the two contacts are engaged with the corresponding connecting strips, it is slid to a set position and fixed in place by the fixing seat 13 to complete the installation.

[0056] The front of the electronic tag 1 has a display screen for displaying information about the corresponding goods; it also has a prompt light for issuing prompts. The external structure and internal circuit of the electronic tag 1 are not limited as long as they can cooperate with the guide rail 2.

[0057] As a further embodiment, the first contact 11 and the second contact 12 may also be spring probes, for example, spring probes with a stroke of 1.5 mm and a load of 100 g.

[0058] As a further implementation, a groove may be provided at the bottom of the electronic tag for cooperating with the bottom plate of the guide rail 2 to achieve guidance, thereby better guiding the sliding of the electronic tag and further strengthening the anti-detachment design.

[0059] like Figure 6-Figure 7 As shown, the cross-section of the guide rail 2 is U-shaped, including a top plate and a bottom plate arranged in parallel. One end of the top plate and the bottom plate are connected together by a vertical plate. A fixing hole 23 is provided on the surface of the bottom plate for cooperating with the fixing seat 13 of the electronic tag, and fasteners are used to realize the connection and fixation between the electronic tag 1 and the guide rail 2.

[0060] The inner surface of the top plate is provided with connecting strips arranged along the length direction of the guide rail 2. The connecting strips have two groups arranged in parallel, namely the first connecting strip 21 and the second connecting strip 22. The two groups of connecting strips are respectively connected to the two contacts of the electronic tag for transmitting electrical signals to the electronic tag 1.

[0061] As a further embodiment, Figure 7 As shown, the main body of the guide rail 2 is made of insulating material, wherein a base is provided on the inner side of the top plate, which is used to fix two sets of connecting strips. The connecting strips are made of conductive material, which can be metal conductive material or non-metal conductive material, or a mixed conductive material of metal and non-metal.

[0062] As a further embodiment, the connecting strip is made of a wear-resistant alloy, such as phosphor bronze, which has both electrical conductivity and wear resistance.

[0063] As a further embodiment, the cross section of the connecting strip has a groove, and the contact of the electronic tag 1 has a protrusion. Through the cooperation of the protrusion and the groove, a reliable connection between the contact and the connecting strip is achieved, ensuring that the electrical signal can be transmitted from the connecting strip of the guide rail to the electronic tag 1.

[0064] As a further implementation, the groove of the guide rail connecting strip may also be designed with a flat bottom, with a pre-pressed conductive silicone pad inside.

[0065] As a further embodiment, the surface of the bottom plate of the guide rail 2 may be further provided with protrusions for cooperating with the grooves at the bottom of the electronic tag to achieve guidance and further anti-detachment design.

[0066] As a further implementation, a protrusion may be provided at the bottom of the electronic tag 1 and a corresponding groove may be provided on the bottom plate of the guide rail 2, so as to also achieve guidance and further anti-detachment design.

[0067] As a further implementation method, the bottom plate of the guide rail 2 may also be provided with heat dissipation holes to solve the problem of heat accumulation caused by long-term use and friction effects.

[0068] The junction box 3 connected at both ends of the guide rail 2 has a structure as follows Figures 8-11 As shown, the junction box includes a junction box body, a circuit connector 31 is provided at the top of one side of the junction box body, and a fixing block 32 is provided at the bottom. Both the circuit connector 31 and the fixing block 32 extend in the direction of the guide rail 2. The circuit connector 31 is used to connect to the connecting bar at the top of the guide rail 2, and the fixing block 32 is used to connect to the fixing hole 23 at the bottom of the guide rail 2.

[0069] The junction box body has a wiring terminal 34 on one side of the circuit connector 31. The wiring terminal 34 is located in the space below the circuit connector 31. The wiring terminal 34 has four groups of wiring terminals, and each two groups of terminals are connected to form a pair, corresponding to the two groups of contacts on the electronic tag 1. The circuit connector 31 is connected to the wiring terminal 34 through a wire 33.

[0070] A wire connection hole 35 is provided on the other side of the junction box body. The external cable 36 passes through the wire connection hole 35 into the junction box 3 and is connected to the terminal 34. The terminal 34 is connected to the circuit connector 31 through the wire 33. When the junction box 3 is connected to both ends of the guide rail 2, the circuit connector 31 is connected to the connecting strips on the guide rail 2, and the contacts of the electronic tag 1 are connected to the connecting strips, so that the external electrical signal is transmitted along the path: external cable 36 → terminal 34 → wire 33 → circuit connector 31 → connecting strips (first connecting strip 21 and second connecting strip 22) → contacts (first contact 11 and second contact 12).

[0071] This embodiment uses a two-wire system as an example. The signal transmission connector and contacts are located at the top of the electronic tag 1. Accordingly, the connector is located on the inner surface of the guide rail's top plate. The connector's cross-section has a groove. Due to voltage considerations, the groove's diameter is small. Dust accumulation in the groove can easily lead to poor contact. However, when the connector is located on the inner surface of the guide rail's top plate, the surface for transmitting electrical signals faces downward, eliminating dust accumulation and extending the life of the electronic tag.

[0072] As a further implementation method, in addition to the position on the inner surface of the guide rail top plate, it can also be designed on the surface of the vertical plate of the guide rail. For example, when connecting a four-wire electronic tag, four sets of connecting strips can be embedded in the top plate and the vertical plate surface of the guide rail respectively, and when the width of the vertical plate is large enough, more connecting strips can be set on the vertical plate to allow the carrying of multi-wire electronic tags 1.

[0073] When the electronic tags with the above structure are applied to warehousing and logistics scenarios, a set of guide rails is set up on each shelf. After multiple electronic tags slide to the positions corresponding to the goods in the guide rails, the electronic tags are fixed to the required positions using fasteners, fixing seats on the electronic tags, and fixing holes on the guide rails. The electrical signals transmitted by the external cables are transmitted to the corresponding electronic tags through the junction box, connecting strips, and contacts, helping staff complete tasks such as sorting and inventory.

[0074] When the position of the goods needs to be adjusted, the corresponding electronic tag can be repositioned by sliding along the guide rail. This adjustment does not require changing the layout of external cables or adding or removing cables, reducing the workload of adjusting the electronic tag position. Furthermore, since the cable is not pierced, it does not damage the cable insulation, eliminating the safety risks associated with traditional pierced cable fixing methods.

[0075] During initial installation, remove the junction boxes at both ends of the guide rail and install the guide rail in the set position on the shelf; insert the electronic tag from one end of the guide rail and move it to the set position; pass the pre-laid external cable through the junction box and connect it to the wiring terminals inside, then snap the junction box onto the end of the guide rail so that the circuit connector of the junction box aligns with the connecting strip in the guide rail and fix it with the fixing block, power on the external cable, and debug the electronic tag.

[0076] In addition, the main body of the guide rail 2 is made of insulating material, and the connecting strip is made of conductive material, which makes the guide rail lower in cost compared to the electronic tag. During the initial installation, the length of the guide rail can be adjusted according to the actual shelf length requirements, for example, it can be shortened. If multiple guide rails need to be spliced, the two ends of each guide rail can be connected to the junction box 3, and then the adjacent junction boxes can be connected using a cable. That is, the two ends of the cable pass through the wire connection holes 35 of the adjacent junction boxes 3 and connected to the corresponding terminal blocks 34, thereby realizing the electrical signal docking after the guide rails 2 are spliced. The method of using junction boxes to dock guide rails can make it possible to splice multiple guide rails of different lengths into the required length without affecting the path of electrical signal transmission, greatly reducing the loss during the installation of the guide rails 2.

[0077] In summary, this solution solves the problems of cumbersome position adjustment of traditional electronic tags, fragile cables, and poor scalability through the guide rail sliding + junction box modular design, and has significant advantages in dynamic warehousing environments.

[0078] Electronic tags slide within the rails to adjust their position, reducing the workload associated with repeated installation and removal of fasteners using traditional screw crimping methods and avoiding the rapid cable loss associated with needle-piercing cable connections. Furthermore, junction boxes at each end of the rails allow rails of varying lengths to be spliced ​​and reused, significantly reducing rail wear during initial installation.

[0079] Example 2:

[0080] The invention relates to a working method of a mobile electronic tag based on a two-wire carrier circuit.

[0081] The external electrical signal is transmitted to the terminal 34 via the external cable 36, and then passes through the wire 33, the circuit connector 31, the connecting strips (the first connecting strip 21 and the second connecting strip 22), and the contacts (the first contact 11 and the second contact 12) to be transmitted to the electronic tag 1. The electronic tag 1 responds to the electrical signal to achieve inventory management.

[0082] When the position of an item needs to be adjusted, the corresponding electronic tag can be repositioned by sliding it along the guide rail. Alternatively, the junction box at one end of the rail can be removed, the electronic tag can be removed from the rail, and then replaced on the next rail. Adjusting the position does not require changing the layout of external cables or adding or removing cables, reducing the workload of adjusting the electronic tag. Furthermore, since the cable is not pierced, it does not damage the cable insulation, eliminating the safety hazards associated with traditional pierced cable fixing methods.

[0083] Electronic tags slide within the rails to adjust their position, reducing the workload associated with repeated installation and removal of fasteners using traditional screw crimping methods and avoiding the rapid cable loss associated with needle-piercing cable connections. Furthermore, junction boxes at each end of the rails allow rails of varying lengths to be spliced ​​and reused, significantly reducing rail wear during initial installation.

[0084] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A mobile electronic tag based on a two-wire carrier circuit, characterized in that: It includes an electronic tag, a guide rail and a junction box; the electronic tag is slidably connected to the guide rail, and a connecting strip is provided on the inner side of the guide rail, which is connected to the contact of the electronic tag; A junction box is provided at both ends of the guide rail. A circuit connector, a wiring terminal and a fixed block are provided on the side of the junction box facing the guide rail. The circuit connector is correspondingly connected to the connecting strip of the guide rail, and the fixed block is used to be fixedly connected to the guide rail. A wire connection hole is provided on the side of the junction box away from the guide rail. The external cable is inserted into the junction box through the wire connection hole and connected to the wiring terminal. The wiring terminal is connected to the circuit connector through the wire, and the electrical signal transmitted by the external cable is transmitted to the inside of the electronic tag through the wiring terminal, the wire, the circuit connector, the connecting strip and the contact in sequence.

2. The mobile electronic tag based on a two-wire carrier circuit as claimed in claim 1, characterized in that: Two groups of contacts arranged in parallel are provided on the top of the electronic tag, and each group of contacts abuts against a corresponding connecting strip in the guide rail.

3. The mobile electronic tag based on a two-wire carrier circuit as claimed in claim 1, characterized in that: The guide rail has a U-shaped cross section and comprises a top plate and a bottom plate arranged in parallel, and one end of the top plate and the bottom plate are connected together through a vertical plate.

4. The mobile electronic tag based on a two-wire carrier circuit as claimed in claim 3, characterized in that: The connecting strips are arranged along the length direction of the guide rails and are provided on the inner surface of the top plate and / or the vertical plate.

5. The mobile electronic tag based on a two-wire carrier circuit as claimed in claim 3, characterized in that: The top plate, bottom plate and vertical plate of the guide rail are made of insulating material, and the connecting strip is made of conductive material.

6. The mobile electronic tag based on a two-wire carrier circuit as claimed in claim 3, characterized in that: The surface of the bottom plate is provided with fixing holes for connecting with the fixing seat of the electronic tag and the fixing block of the junction box through fasteners.

7. The mobile electronic tag based on a two-wire carrier circuit as claimed in claim 1, characterized in that: The connecting strips have two groups arranged in parallel, and each group of connecting strips abuts against corresponding contacts in the electronic tag to transmit electrical signals to the electronic tag.

8. The mobile electronic tag based on a two-wire carrier circuit as claimed in claim 1, characterized in that: The cross section of the connecting strip has a groove, and the contact of the electronic tag has a protrusion, and the shape of the protrusion matches the shape of the groove.

9. The mobile electronic tag based on a two-wire carrier circuit as claimed in claim 1, characterized in that: The circuit connector is located on a side of the junction box facing the guide rail, the wiring terminal is located in a space below the circuit connector, and the fixing block is located in a space below the wiring terminal.

10. A method for operating a mobile electronic tag based on the two-wire carrier circuit according to any one of claims 1 to 9, characterized in that: The following steps are involved: External electrical signals are transmitted to the terminal blocks via external cables, and then pass through the wires, circuit connectors, connecting strips, and contacts before being transmitted to the electronic tags. The electronic tags respond to the electrical signals and send out corresponding information to achieve inventory management. When the position of the goods changes, the electronic tag slides along the length of the guide rail to adjust the corresponding position. During this period, the contact maintains sliding contact with the connecting strip.

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