Multi-screen electronic shelf label

Abstract

The utility model discloses a multi-screen electronic shelf label which comprises a power supply, a plurality of screens, a main control chip, an antenna, a screen driving circuit and an RGB lamp circuit, the power supply is respectively connected with the plurality of screens through the screen driving circuit, the power supply is connected with the main control chip, the control end of the screen driving circuit is respectively connected with the control ends of the plurality of screens, and the main control chip is connected with the antenna. The signal input ends of the plurality of screens are connected with the signal output end of the main control chip, the main control chip is in communication connection with the antenna, and the indication signal output end of the main control chip is connected with the signal input end of the RGB lamp circuit; the multi-screen electronic shelf label is provided with a plurality of screens, so that more information can be displayed at the same time, and the efficiency and the flexibility of shelf management are improved; meanwhile, through the functions of wireless communication and the RGB lamp circuit, the shelf label is more convenient and diversified to use; in addition, the device is simple in structure, easy to manufacture and maintain and wide in application prospect.

Description

Technical Field

[0001] The utility model belongs to the technical field of labels, and in particular relates to a multi-screen electronic shelf label. Background Art

[0002] In the shelf management of retail stores, shelf labels are used to display the name, price and other information of the product. Traditional paper labels need to be replaced manually, which is not only inefficient but also prone to errors. With the development of technology, electronic shelf labels have gradually become popular, which can update the display content in real time, greatly improving the efficiency of shelf management. However, most existing electronic shelf labels are single-screen designs with limited display area, which cannot meet the display needs of some large products or products that need to display more information. Utility Model Content

[0003] In view of this, the main purpose of the present invention is to provide a multi-screen electronic shelf label.

[0004] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0005] Embodiment 1 of the present invention provides a multi-screen electronic shelf label, including a power supply, multiple screens, a main control chip, an antenna circuit, a screen driving circuit, and an RGB light circuit. The power supply is respectively connected to the multiple screens through the screen driving circuit, the power supply is connected to the main control chip, the control end of the screen driving circuit is respectively connected to the control end of the multiple screens, the signal input ends of the multiple screens are all connected to the signal output end of the main control chip, the main control chip is communicatively connected to the antenna circuit, and the indication signal output end of the main control chip is connected to the signal input end of the RGB light circuit.

[0006] In the above scheme, the antenna circuit includes a second inductor, a third inductor, a first capacitor, a second capacitor, a third capacitor, and an antenna. The first end of the second inductor is respectively connected to the ANT end of the main control chip and the first end of the first capacitor, the second end of the second inductor is respectively connected to the first end of the third inductor and the first end of the second capacitor, the second end of the third inductor is respectively connected to the first end of the third capacitor and the antenna and then grounded, and the second end of the first capacitor, the second end of the second capacitor, and the second end of the third capacitor are all grounded.

[0007] In the above scheme, the P0.07 terminal of the main control chip is respectively connected to the SCK terminal of each of the screens, the P0.08 terminal of the main control chip is respectively connected to the SDI terminal of each of the screens, the P0.05 terminal of the main control chip is respectively connected to the SD0 terminal of each of the screens, and the P0.06 terminal of the main control chip is respectively connected to the CS terminal of each of the screens.

[0008] In the above scheme, the screen driving circuit includes a first inductor, a first triode, a second triode, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a fifth capacitor, a sixth capacitor, a tenth capacitor, a first diode, a second diode, and a third diode. The drain of the first triode is respectively connected to the first end of the fifth resistor, the first end of the fifth capacitor and the power supply, the source of the first triode is connected to the power supply, the gate of the first triode is respectively connected to the second end of the fifth resistor and the first end of the sixth resistor, the second end of the sixth resistor is connected to the P0.12 end of the main control chip, the power supply is respectively connected to the first end of the first inductor and the first end of the ninth capacitor, the second end of the first inductor is respectively connected to the first end of the sixth capacitor, the first end of the The cathode of the third diode and the source of the second transistor are connected, the second end of the sixth capacitor is respectively connected to the cathode of the first diode and the anode of the second diode, the cathode of the second diode is respectively connected to the PREVGL end of each of the screens, the anode of the third diode is respectively connected to the first end of the tenth capacitor and the PREVGH end of each of the screens, the gate of the second transistor is respectively connected to the GDR end of each of the screens and the first end of the seventh resistor, the second end of the seventh resistor is connected to the first end of the eighth resistor and then grounded, the second end of the eighth resistor is respectively connected to the RESE end of each of the screens and the drain of the second transistor, the second end of the fifth capacitor, the second end of the ninth capacitor, and the second end of the tenth capacitor are all grounded.

[0009] In the above scheme, the RGB lamp circuit includes a first light-emitting diode, a second light-emitting diode, a third light-emitting diode, a fifteenth resistor, a sixteenth resistor, and a seventeenth resistor. The cathode of the first light-emitting diode is respectively connected to the cathode of the second light-emitting diode, the cathode of the third light-emitting diode and the power supply, the anode of the first light-emitting diode is connected in series with the fifteenth resistor and then connected to the P0.18 terminal of the main control chip, the anode of the second light-emitting diode is connected in series with the sixteenth resistor and then connected to the P0.19 terminal of the main control chip, and the anode of the third light-emitting diode is connected in series with the seventeenth resistor and then connected to the P0.17 terminal of the main control chip.

[0010] Compared with the prior art, the multi-screen electronic shelf label of the utility model has multiple screens, which can display more information at the same time, and improve the efficiency and flexibility of shelf management. At the same time, through the functions of wireless communication and RGB light circuit, the use of shelf labels is more convenient and diversified. In addition, the utility model has a simple structure, is easy to manufacture and maintain, and has a wide range of application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The drawings described herein are used to disclose a further understanding of the present invention and constitute a part of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0012] Figure 1 This is a schematic diagram of the structure of a multi-screen electronic shelf label according to an embodiment of the utility model;

[0013] Figure 2 This is a schematic diagram of the structure of the main control chip described in the embodiment of the utility model;

[0014] Figure 3 This is a schematic diagram of the structure of the screen driving circuit according to an embodiment of the utility model;

[0015] Figure 4 This is a schematic diagram of the circuit structure of the screen described in the embodiment of the utility model;

[0016] Figure 5 It is a schematic diagram of the structure of the RGB lamp circuit described in the embodiment of the utility model. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0018] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0019] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, article or device. In the absence of more restrictions, an element defined by the sentence "includes a ..." does not exclude the existence of other identical elements in the process, article or device including the element.

[0020] The utility model embodiment provides a multi-screen electronic shelf label, such as Figure 1-5 As shown, it includes a power supply VCC, multiple screens, a main control chip U1, an antenna circuit, a screen driving circuit, and an RGB lamp circuit. The power supply VCC is connected to the multiple screens through the screen driving circuit, the power VCC is connected to the main control chip U1, the control end of the screen driving circuit is connected to the control end of the multiple screens, the signal input ends of the multiple screens are connected to the signal output end of the main control chip U1, the main control chip U1 is communicatively connected to the antenna circuit, and the indication signal output end of the main control chip U1 is connected to the signal input end of the RGB lamp circuit.

[0021] In the above scheme, the power supply VCC provides power for the entire system and is connected to multiple screens and the main control chip U1 through the screen driving circuit. The screen driving circuit is responsible for controlling the display status of the screen, while the signal input terminals of the multiple screens are connected to the signal output terminals of the main control chip U1 to receive the display content sent by the main control chip U1. The main control chip U1 is the core of the entire system. It not only controls the display content of the screen, but also communicates with the outside world through the antenna ANT1 to receive update instructions or data. In addition, the main control chip U1 is also provided with an indication signal output terminal, which is connected to the signal input terminal of the RGB light circuit to control the display status of the RGB light circuit and provide status indication or decorative effects for shelf labels.

[0022] like Figure 2 As shown, the antenna circuit includes a second inductor L2, a third inductor L3, a first capacitor C1, a second capacitor C2, a third capacitor C3, and an antenna ANT1. The first end of the second inductor L2 is respectively connected to the ANT end of the main control chip U1 and the first end of the first capacitor C1, the second end of the second inductor L2 is respectively connected to the first end of the third inductor L3 and the first end of the second capacitor C2, the second end of the third inductor L3 is respectively connected to the first end of the third capacitor C3 and the antenna ANT1 and then grounded, and the second end of the first capacitor C1, the second end of the second capacitor C2, and the second end of the third capacitor C3 are all grounded.

[0023] In the above solution, the main control chip is provided with a communication interface terminal connected to the antenna for receiving and sending wireless signals, which enables the multi-screen electronic shelf label to communicate wirelessly with external devices or systems to achieve remote updating, control and other functions.

[0024] like Figure 1 , Figure 2 and Figure 4As shown, the P0.07 terminal of the main control chip U1 is respectively connected to the SCK terminal of each of the screens, the P0.08 terminal of the main control chip is respectively connected to the SDI terminal of each of the screens, the P0.05 terminal of the main control chip U1 is respectively connected to the SD0 terminal of each of the screens, and the P0.06 terminal of the main control chip U1 is respectively connected to the CS terminal of each of the screens.

[0025] like Figure 1-Figure 3 As shown, the screen driving circuit includes a first inductor L1, a first transistor Q1, a second transistor Q2, a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, an eighth resistor R8, a fifth capacitor C5, a sixth capacitor C6, a tenth capacitor C10, a first diode D1, a second diode D2, and a third diode D3. The drain of the first transistor Q1 is respectively connected to the first end of the fifth resistor R5, the first end of the fifth capacitor C5 and the power supply VCC, the source of the first transistor Q1 is connected to the power supply VCC, the gate of the first transistor Q1 is respectively connected to the second end of the fifth resistor R5 and the first end of the sixth resistor R6, the second end of the sixth resistor R6 is connected to the P0.12 end of the main control chip U1, the power supply VCC is respectively connected to the first end of the first inductor L1 and the first end of the ninth capacitor C9, the second end of the first inductor L1 is respectively connected to the first end of the ninth capacitor C9, and the second end of the first inductor L1 is respectively connected to the first end of the ninth capacitor C9. The first end of the sixth capacitor C6, the cathode of the third diode D3, and the source of the second transistor Q2 are connected, the second end of the sixth capacitor C6 is respectively connected to the cathode of the first diode D1 and the anode of the second diode D2, the cathode of the second diode D2 is respectively connected to the PREVGL end of each of the screens, the anode of the third diode D3 is respectively connected to the first end of the tenth capacitor C10 and the PREVGH end of each of the screens, the gate of the second transistor Q2 is respectively connected to the GDR end of each of the screens and the first end of the seventh resistor R7, the second end of the seventh resistor R7 is connected to the first end of the eighth resistor R8 and then grounded, the second end of the eighth resistor R8 is respectively connected to the RESE end of each of the screens and the drain of the second transistor Q2, the second end of the fifth capacitor C5, the second end of the ninth capacitor C9, and the second end of the tenth capacitor C10 are all grounded.

[0026] like Figure 2 and Figure 5As shown, the RGB lamp circuit includes a first light-emitting diode LED1, a second light-emitting diode LED2, a third light-emitting diode LED3, a fifteenth resistor R15, a sixteenth resistor R16, and a seventeenth resistor R17. The cathode of the first light-emitting diode LED1 is respectively connected to the cathode of the second light-emitting diode LED2, the cathode of the third light-emitting diode LED3 and the power supply VCC, the anode of the first light-emitting diode LED1 is connected in series with the fifteenth resistor R15 and then connected to the P0.18 terminal of the main control chip U1, the anode of the second light-emitting diode LED2 is connected in series with the sixteenth resistor R16 and then connected to the P0.19 terminal of the main control chip U1, and the anode of the third light-emitting diode LED3 is connected in series with the seventeenth resistor R17 and then connected to the P0.17 terminal of the main control chip U1.

[0027] In the above solution, the main control chip U1 is provided with an RGB control terminal for sending an indication signal to the RGB light circuit. The RGB light circuit can display different colors or flashing modes according to different indication signals, providing status indication (such as low power, data update, etc.) or decorative effects for the shelf label.

[0028] In practical applications, the multiple screens of multi-screen electronic shelf labels can display different information, such as product name, price, promotion information, etc. The collaborative work of multiple screens can greatly improve the efficiency and flexibility of shelf management. At the same time, due to the use of wireless communication and RGB light circuit functions, the use of shelf labels is more convenient and diversified.

[0029] In summary, the utility model adopts the method of horizontal splicing of small-size screens to achieve the purpose of displaying more content. Through reasonable splicing design, the display area can be increased while keeping the longitudinal size of the product unchanged. This design allows the label to be easily installed on the original shelf rail without the need to modify the shelf. By splicing multiple small screens, the same display effect as the large screen can be achieved while reducing costs. This makes the utility model competitive in price and easier to popularize in the market. Multiple screens share a main control and part of the drive circuit, which simplifies the system structure and reduces power consumption. When information needs to be updated, these small screens are refreshed and updated in turn, and the power consumption is lower than that of a single large screen. Therefore, a small battery can be used for driving to extend the use time of the label. The splicing interval between the screens plays a visual isolation role, making the information of different goods clearer and easier to distinguish. At the same time, the wireless communication function makes information update more convenient and quick, and improves the efficiency of shelf management.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention.

Claims

1. A multi-screen electronic shelf label, characterized in that: It includes a power supply, multiple screens, a main control chip, an antenna circuit, a screen driving circuit, and an RGB light circuit. The power supply is connected to the multiple screens through the screen driving circuit, the power supply is connected to the main control chip, the control end of the screen driving circuit is connected to the control end of the multiple screens, the signal input ends of the multiple screens are connected to the signal output end of the main control chip, the main control chip is communicatively connected to the antenna circuit, and the indication signal output end of the main control chip is connected to the signal input end of the RGB light circuit.

2. The multi-screen electronic shelf label according to claim 1, characterized in that: The antenna circuit includes a second inductor, a third inductor, a first capacitor, a second capacitor, a third capacitor, and an antenna. The first end of the second inductor is respectively connected to the ANT end of the main control chip and the first end of the first capacitor, the second end of the second inductor is respectively connected to the first end of the third inductor and the first end of the second capacitor, the second end of the third inductor is respectively connected to the first end of the third capacitor and the antenna and then grounded, and the second end of the first capacitor, the second end of the second capacitor, and the second end of the third capacitor are all grounded.

3. The multi-screen electronic shelf label according to claim 2, characterized in that: The P0.07 terminal of the main control chip is respectively connected to the SCK terminal of each of the screens, the P0.08 terminal of the main control chip is respectively connected to the SDI terminal of each of the screens, the P0.05 terminal of the main control chip is respectively connected to the SD0 terminal of each of the screens, and the P0.06 terminal of the main control chip is respectively connected to the CS terminal of each of the screens.

4. The multi-screen electronic shelf label according to claim 3, characterized in that: The screen driving circuit includes a first inductor, a first triode, a second triode, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a fifth capacitor, a sixth capacitor, a tenth capacitor, a first diode, a second diode, and a third diode. The drain of the first triode is respectively connected to the first end of the fifth resistor, the first end of the fifth capacitor and a power supply, the source of the first triode is connected to the power supply, the gate of the first triode is respectively connected to the second end of the fifth resistor and the first end of the sixth resistor, the second end of the sixth resistor is connected to the P0.12 end of the main control chip, the power supply is respectively connected to the first end of the first inductor and the first end of the ninth capacitor, the second end of the first inductor is respectively connected to the first end of the sixth capacitor, the third diode The cathode of the transistor and the source of the second triode are connected, the second end of the sixth capacitor is respectively connected to the cathode of the first diode and the anode of the second diode, the cathode of the second diode is respectively connected to the PREVGL terminal of each of the screens, the anode of the third diode is respectively connected to the first end of the tenth capacitor and the PREVGH terminal of each of the screens, the gate of the second triode is respectively connected to the GDR terminal of each of the screens and the first end of the seventh resistor, the second end of the seventh resistor is connected to the first end of the eighth resistor and then grounded, the second end of the eighth resistor is respectively connected to the RESE terminal of each of the screens and the drain of the second triode, the second end of the fifth capacitor, the second end of the ninth capacitor and the second end of the tenth capacitor are all grounded.

5. The multi-screen electronic shelf label according to claim 4, characterized in that: The RGB lamp circuit includes a first light-emitting diode, a second light-emitting diode, a third light-emitting diode, a fifteenth resistor, a sixteenth resistor, and a seventeenth resistor. The cathode of the first light-emitting diode is respectively connected to the cathode of the second light-emitting diode, the cathode of the third light-emitting diode and the power supply, the anode of the first light-emitting diode is connected in series with the fifteenth resistor and then connected to the P0.18 terminal of the main control chip, the anode of the second light-emitting diode is connected in series with the sixteenth resistor and then connected to the P0.19 terminal of the main control chip, and the anode of the third light-emitting diode is connected in series with the seventeenth resistor and then connected to the P0.17 terminal of the main control chip.

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