Electronic price tag display control circuit and content display method

Abstract

This specification provides an electronic price tag display control circuit, including a bridge rectifier circuit and a posture sensing terminal. In a first posture, the bridge rectifier circuit is forward-connected to the rail power supply and to the electronic price tag itself. The posture sensing terminal is connected to both the bridge rectifier circuit and the electronic price tag. In a second posture, the bridge rectifier circuit is reverse-connected to the rail power supply and to the electronic price tag itself. The posture sensing terminal is connected to both the bridge rectifier circuit and the electronic price tag itself. By changing the connection method between the bridge rectifier circuit and the rail power supply, the posture sensing terminal can detect different postures of the electronic price tag, displaying corresponding content based on the posture. This achieves the goal of quickly replacing the displayed content, simplifying the content replacement process, improving the efficiency of content replacement, and providing customers with accurate display content in real time.

Description

Technical Field

[0001] This specification relates to the field of computer technology, and in particular to a method for displaying content on an electronic price tag. One or more embodiments of this specification also relate to an electronic price tag content display device, a computing device, and a computer-readable storage medium. Background Technology

[0002] With the rapid development of internet technology, shopping malls and supermarkets are gradually transforming towards intelligent operation. Currently, many large shopping malls and supermarkets have installed electronic shelf labels to replace traditional paper labels. Compared to traditional paper labels, electronic shelf labels can display more product information, and can also adjust their display content promptly when product inventory, prices, and other information change, ensuring the accuracy of the displayed information. However, when it is necessary to modify the displayed information of electronic shelf labels, it may require manual scanning of the barcode to update the content. When the number of modifications to electronic shelf labels is large, this can create a significant workload for staff. Therefore, how to easily and quickly update the displayed content of electronic shelf labels is a problem that urgently needs to be solved. Summary of the Invention

[0003] In view of the above, embodiments of this specification provide an electronic price tag display control circuit and a content display method based on the electronic price tag display control circuit. One or more embodiments of this specification also relate to a content display device based on an electronic price tag display control circuit, a computing device, a computer-readable storage medium, and a computer program, to address the technical deficiencies existing in the prior art.

[0004] According to a first aspect of the embodiments of this specification, an electronic price tag display control circuit is provided, the circuit comprising: a bridge rectifier circuit and an attitude sensing terminal;

[0005] In the first posture, the bridge rectifier circuit is positively connected to the rail power supply, and the bridge rectifier circuit is positively connected to the electronic price tag. The two ends of the posture sensing end are respectively connected to the bridge rectifier circuit and the electronic price tag.

[0006] In the second posture, the bridge rectifier circuit is reverse-connected to the rail power supply, and the bridge rectifier circuit is forward-connected to the electronic price tag. The two ends of the posture sensing terminal are respectively connected to the bridge rectifier circuit and the electronic price tag.

[0007] According to a second aspect of the embodiments of this specification, a content display method based on an electronic price tag display control circuit is provided, comprising:

[0008] In response to a power-on command, the posture sensing signal corresponding to the electronic price tag is acquired, wherein different posture sensing signals correspond to different display content;

[0009] The target display content corresponding to the attitude sensing signal is determined, and the target display content is displayed on the electronic price tag.

[0010] According to a third aspect of the embodiments of this specification, a content display device based on an electronic price tag display control circuit is provided, comprising:

[0011] The acquisition module is configured to acquire the attitude sensing signal corresponding to the electronic price tag in response to a power-on command, wherein different attitude sensing signals correspond to different display content;

[0012] The display module is configured to determine the target display content corresponding to the attitude sensing signal and display the target display content on the electronic price tag.

[0013] According to a fourth aspect of the embodiments of this specification, a computing device is provided, including a memory, a processor, and computer instructions stored in the memory and executable on the processor, wherein the processor executes the computer instructions to implement the steps of the content display method based on the electronic price tag display control circuit.

[0014] According to a fifth aspect of the embodiments of this specification, a computer-readable storage medium is provided that stores computer instructions, which, when executed by a processor, implement the steps of the content display method based on the electronic price tag display control circuit.

[0015] According to a sixth aspect of the embodiments of this specification, a computer program is provided, wherein when the computer program is executed in a computer, it causes the computer to perform the steps of the content display method based on the electronic price tag display control circuit described above.

[0016] The electronic price tag display control circuit provided in this specification includes: a bridge rectifier circuit and an attitude sensing terminal; in a first attitude, the bridge rectifier circuit is positively connected to the rail power supply and positively connected to the electronic price tag, and the two ends of the attitude sensing terminal are respectively connected to the bridge rectifier circuit and the electronic price tag; in a second attitude, the bridge rectifier circuit is reversely connected to the rail power supply and positively connected to the electronic price tag, and the two ends of the attitude sensing terminal are respectively connected to the bridge rectifier circuit and the electronic price tag.

[0017] One embodiment of this specification implements a display control circuit that, based on different postures of the electronic price tag, changes the connection between the bridge rectifier circuit and the rail power supply in the display control circuit. This allows the posture sensing end to detect the different postures of the electronic price tag and display corresponding content according to the different postures. This achieves the purpose of quickly replacing the displayed content of the electronic price tag, reduces the steps of manual content replacement by staff, improves the efficiency of electronic price tag display content replacement, provides customers with accurate display content in real time, and brings a better shopping experience to customers.

[0018] The content display method based on the electronic price tag display control circuit provided in this specification is applied to electronic price tags and includes: in response to a power-on command, acquiring a posture sensing signal corresponding to the electronic price tag, wherein different posture sensing signals correspond to different display content; determining the target display content corresponding to the posture sensing signal, and displaying the target display content on the electronic price tag.

[0019] One embodiment of this specification implements an electronic price tag that, upon receiving a power-on command, acquires an attitude sensing signal based on an electronic price tag display control circuit, determines the target display content corresponding to the attitude sensing signal, and displays it on the electronic price tag. This achieves the goal of quickly changing the display content of the electronic price tag, allowing staff to replace the content without the need for replacement tools, thus improving staff processing efficiency. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of a scenario for an electronic price tag display control circuit provided in one embodiment of this specification;

[0021] Figure 2 This is a circuit diagram of an electronic price tag display control circuit provided in one embodiment of this specification;

[0022] Figure 3 This is a voltage regulator circuit diagram of an embodiment of an electronic price tag display control circuit provided in this specification;

[0023] Figure 4 This is a flowchart illustrating a content display method based on an electronic price tag display control circuit, provided in one embodiment of this specification.

[0024] Figure 5 This is a flowchart illustrating the processing steps of a content display method based on an electronic price tag display control circuit, as provided in one embodiment of this specification.

[0025] Figure 6 This is a schematic diagram of the structure of a content display device based on an electronic price tag display control circuit, provided in one embodiment of this specification.

[0026] Figure 7 This is a structural block diagram of a computing device provided in one embodiment of this specification. Detailed Implementation

[0027] Many specific details are set forth in the following description to provide a full understanding of this specification. However, this specification can be implemented in many other ways than those described herein, and those skilled in the art can make similar extensions without departing from the spirit of this specification. Therefore, this specification is not limited to the specific implementations disclosed below.

[0028] The terminology used in one or more embodiments of this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the one or more embodiments of this specification. The singular forms “a,” “described,” and “the” as used in one or more embodiments of this specification and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used in one or more embodiments of this specification refers to any or all possible combinations including one or more of the associated listed items.

[0029] It should be understood that although the terms first, second, etc., may be used to describe various information in one or more embodiments of this specification, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, first may also be referred to as second without departing from the scope of one or more embodiments of this specification, and similarly, second may also be referred to as first. Depending on the context, the word "if" as used herein may be interpreted as "when," "when," or "in response to a determination."

[0030] First, the terms and concepts used in one or more embodiments of this specification will be explained.

[0031] Electronic shelf labels (ESCs): Electronic display devices with information transmission and reception capabilities, primarily used in supermarkets, convenience stores, pharmacies, and other similar establishments to display price information. Placed on shelves, these ESCs can replace traditional paper price tags. Each ESC can connect to the store's computer database via wired or wireless network, displaying the latest product information on its screen.

[0032] Electronic shelf labels (ESLs), serving as the digital infrastructure of the supermarket and retail industry, have been widely adopted across the sector. ESLs replace traditional paper price tags, displaying product prices and information to customers via an electronic screen. In daily use, the content displayed on ESLs often needs to be dynamically updated due to changes in product inventory and sales stages. For example, if a product is sold out, the ESL should display this information to prevent customers from seeing an ESL that doesn't indicate the product is sold out but being unable to access it, leading to a poor shopping experience. Therefore, timely updates to the ESL content, ensuring the accuracy of product information, can reduce complaint rates and compliance risks caused by discrepancies between the displayed content and the actual product.

[0033] Currently, changing the content displayed on electronic shelf labels often requires staff to observe the product's condition or the sales stage on-site, manually decide when to change the display, and then execute the change on-site. Furthermore, when staff adjust the display content of electronic shelf labels, they need to use content adjustment tools or reset the display content. When using content adjustment tools, staff may use a barcode scanner / mobile phone or other digital terminal to scan the electronic shelf labels sequentially to adjust the display content. This method requires multiple scans and confirmations, making the operation complex. Resetting the display content may require staff to detach the electronic shelf labels and connect them to a computer or other terminal via wired connection, or to set the content display for each electronic shelf label through a backend system. However, this method has poor real-time performance, is cumbersome, and negatively impacts the customer shopping experience.

[0034] Based on this, this specification provides an electronic price tag display control circuit for quickly and accurately replacing the content displayed on electronic price tags, and a content display method based on the electronic price tag display control circuit, for automatically switching the displayed content of the electronic price tag according to different posture sensing signals. This specification also relates to a content display device based on the electronic price tag display control circuit, a computing device, a computer-readable storage medium, and a computer program, which will be described in detail in the following embodiments.

[0035] Figure 1 This diagram illustrates a scenario of an electronic price tag display control circuit according to one embodiment of this specification. Figure 1This includes the display content of the electronic price tag under two different installation postures. In the first posture, the electronic price tag is in the upright position, and the electronic price tag is positively connected to the rail power supply. At this time, the posture sensing terminal in the electronic price tag display control circuit can sense the positive voltage of the rail power supply, use the positive voltage as the upright posture sensing signal, and send it to the electronic price tag logic circuit. The MCU processor of the electronic price tag logic circuit receives the voltage output from the bridge rectifier circuit and, based on the posture sensing signal received from the posture sensing terminal at the logic input terminal, can determine the display content corresponding to the upright posture sensing signal and display it as shown below. Figure 1 The electronic price tag displays the product in its first, upright position. When staff find the product sold out or removed from the shelf, they simply need to reverse the electronic price tag to replace the displayed content. For example... Figure 1 In the second orientation, the electronic price tag is reversed, connected to the rail power supply in reverse. At this time, the orientation sensing terminal in the electronic price tag display control circuit can sense the negative voltage of the rail power supply, using this negative voltage as the reverse orientation sensing signal. This signal is then sent to the electronic price tag logic circuit. The MCU processor in the electronic price tag logic circuit can then determine the display content corresponding to the reverse orientation sensing signal and display, as shown below. Figure 1 The electronic price tag display control circuit provided in this manual can display different content based on different installation conditions of the electronic price tag. Therefore, when the content of the electronic price tag needs to be replaced, the staff only needs to adjust the installation direction of the electronic price tag to complete the replacement of the content, simplifying the updating steps of the electronic price tag display content, improving the efficiency of display content updating, and ensuring the accuracy and timeliness of the displayed content.

[0036] Figure 2 A circuit diagram of an electronic price tag display control circuit according to an embodiment of this specification is shown. The circuit includes a bridge rectifier circuit and an attitude sensing terminal.

[0037] In the first posture, the bridge rectifier circuit is positively connected to the rail power supply, and the bridge rectifier circuit is positively connected to the electronic price tag. The two ends of the posture sensing terminal are respectively connected to the bridge rectifier circuit and the electronic price tag.

[0038] In practical applications, the display control circuit can be located inside the electronic shelf label and connected to its logic circuit. The display control circuit includes a bridge rectifier circuit and a posture sensing terminal. The first posture can be understood as the electronic shelf label being installed upright on the shelf, i.e., as shown... Figure 1As shown in the first posture of the electronic price tag, the bridge rectifier circuit in the display control circuit is positively connected to the rail power supply. The bridge rectifier circuit is connected to the logic circuit of the electronic price tag to supply power to the logic circuit so that the electronic price tag can work normally. The two ends of the posture sensing end are respectively connected to the bridge rectifier circuit and the logic circuit of the electronic price tag. In the first posture, the posture sensing end can input the sensing signal corresponding to the first posture to the MCU processor in the logic circuit of the electronic price tag so that the electronic price tag displays the display content corresponding to the first posture.

[0039] In the second posture, the bridge rectifier circuit is reverse-connected to the rail power supply, and the bridge rectifier circuit is forward-connected to the electronic price tag. The two ends of the posture sensing terminal are respectively connected to the bridge rectifier circuit and the electronic price tag.

[0040] When it's necessary to change the content displayed on the electronic shelf label, simply install the label upside down on the shelf, placing it in its second position, as shown below. Figure 1 As shown in the second orientation of the electronic price tag, the bridge rectifier circuit in the display control circuit is connected in reverse to the rail power supply; the connection between the bridge rectifier circuit and the logic circuit of the electronic price tag remains unchanged, still a forward connection. Because the bridge rectifier circuit can convert the input AC power to DC power output, regardless of the polarity of the input voltage, the bridge rectifier circuit can always output the voltage needed for the electronic price tag to operate. Figure 2 In this system, the MCU processor inside the electronic price tag logic can be powered by the voltage output of the bridge rectifier circuit, thus ensuring the stability and reliability of the electronic price tag. The two ends of the attitude sensing terminal are still connected to the bridge rectifier circuit and the logic circuit of the electronic price tag, respectively. However, in the second attitude, the attitude sensing terminal can input the sensing signal corresponding to the second attitude into the logic circuit of the electronic price tag, so that the electronic price tag displays the display content corresponding to the second attitude.

[0041] In summary, by adjusting the installation posture of the electronic shelf label, the polarity of the input voltage of the bridge rectifier circuit in the display control circuit can be changed. This allows the posture sensing terminal to detect posture sensing signals of different polarities. Furthermore, utilizing the characteristics of the bridge rectifier circuit, the output voltage polarity remains constant despite the change in input voltage polarity, ensuring the electronic shelf label functions normally regardless of its posture. The signals sent by the posture sensing terminal enable the electronic shelf label to display content corresponding to different postures. This allows for the replacement of the electronic shelf label's display content simply by adjusting its installation posture. When the display content needs to be replaced due to items being sold out or removed from shelves, staff only need to change the installation posture, improving the efficiency of content replacement, simplifying the processing steps for staff, and ensuring the timeliness and accuracy of the displayed content, thus providing customers with a better shopping experience.

[0042] In practical implementation, to ensure that the bridge rectifier circuit can supply power to the electronic price tag normally, the forward connection between the bridge rectifier circuit and the rail power supply, and the forward connection between the bridge rectifier circuit and the electronic price tag include:

[0043] In the first position, the positive input terminal of the bridge rectifier circuit is connected to the positive output terminal of the rail power supply, the negative input terminal of the bridge rectifier circuit is connected to the negative output terminal of the rail power supply, the positive output terminal of the bridge rectifier circuit is connected to the positive input terminal of the power supply of the electronic price tag, and the negative output terminal of the bridge rectifier circuit is connected to the negative input terminal of the power supply of the electronic price tag.

[0044] Among them, such as Figure 2 As shown, the positive input terminal of the bridge rectifier circuit is Figure 2 Point A in the diagram represents the negative input terminal of the bridge rectifier circuit. Figure 2 Point C in the diagram represents the positive output of the rail power supply, which can be understood as the end where the rail power supply outputs a high level, and the negative output of the rail power supply, which can be understood as the end where the rail power supply outputs a low level. The positive input of the bridge rectifier circuit is connected to the positive output of the rail power supply, and the negative input of the bridge rectifier circuit is connected to the negative output of the rail power supply. This allows the bridge rectifier circuit to rectify the input voltage from the rail power supply and then transmit it to the electronic price tag, ensuring the normal power supply to the electronic price tag.

[0045] When the electronic shelf label is in the second position due to reverse installation, the connection method between the rail power supply and the bridge rectifier circuit changes. Specifically, in the second position, the positive input terminal of the bridge rectifier circuit is connected to the negative output terminal of the rail power supply, the negative input terminal of the bridge rectifier circuit is connected to the positive output terminal of the rail power supply, the positive output terminal of the bridge rectifier circuit is connected to the positive input terminal of the electronic shelf label, and the negative output terminal of the bridge rectifier circuit is connected to the negative input terminal of the electronic shelf label.

[0046] In the second orientation, where the electronic price tag is mounted reversed on the rail, the polarity of the voltage input from the rail power supply changes. The connection between the bridge rectifier circuit and the rail power supply changes from forward to reverse. At this point, the positive input of the bridge rectifier circuit is connected to the negative output of the rail power supply, and vice versa. The rail power supply inputs a low level to the positive input and a high level to the negative input of the bridge rectifier circuit. However, due to the characteristics of the bridge rectifier circuit, the rectified voltage still outputs a normal voltage to the logic circuit of the electronic price tag, ensuring its normal operation.

[0047] In summary, when the electronic shelf label needs to have its display content replaced, staff will change the installation direction of the electronic shelf label to replace the display content. However, in order to ensure the normal power supply of the electronic shelf label, a bridge rectifier circuit is used to rectify the polarity change of the input voltage of the rail power supply input and output the rectified voltage to the electronic shelf label.

[0048] In practical applications, a bridge rectifier circuit uses four diodes to achieve rectification. Specifically, the bridge rectifier circuit includes diodes D1, D2, D3, and D4. The cathode of diode D1 is connected to the anode of diode D2, the cathode of diode D2 is connected to the cathode of diode D3, the anode of diode D3 is connected to the cathode of diode D4, and the anode of diode D4 is connected to the anode of diode D1.

[0049] In specific implementation, the connection points of each diode are used as the input and output terminals of the bridge rectifier circuit. Specifically, the connection point of diode D1 and diode D2 is used as the positive input terminal of the bridge rectifier circuit, the connection point of diode D2 and diode D3 is used as the positive output terminal of the bridge rectifier circuit, the connection point of diode D3 and diode D4 is used as the negative input terminal of the bridge rectifier circuit, and the connection point of diode D4 and diode D1 is used as the negative output terminal of the bridge rectifier circuit.

[0050] by Figure 2For example, the connection between diodes D1 and D2 serves as the positive input terminal of the bridge rectifier circuit, i.e., point A is the positive input terminal of the bridge rectifier circuit; the connection between diodes D2 and D3 serves as the positive output terminal of the bridge rectifier circuit, i.e., point B is the positive output terminal of the bridge rectifier circuit; the connection between diodes D3 and D4 serves as the negative input terminal of the bridge rectifier circuit, i.e., point C is the negative input terminal of the bridge rectifier circuit; and the connection between diodes D4 and D1 serves as the negative output terminal of the bridge rectifier circuit, i.e., point D is the negative output terminal of the bridge rectifier circuit.

[0051] In one feasible manner, when the positive input terminal of the bridge rectifier circuit is connected to the positive output terminal of the rail power supply, and the negative input terminal of the bridge rectifier circuit is connected to the negative output terminal of the rail power supply, ... Figure 2 For example, the input current loop of the rail power supply is as follows: rail power supply positive input terminal - bridge rectifier circuit positive input terminal A point - diode D2 - bridge rectifier circuit positive output terminal B point - electronic price tag logic circuit - bridge rectifier circuit negative output terminal D point - diode D4 - bridge rectifier circuit negative input terminal C point - rail power supply negative output terminal.

[0052] In another feasible configuration, when the positive input of the bridge rectifier circuit is connected to the negative output of the rail power supply, and the negative input of the bridge rectifier circuit is connected to the positive output of the rail power supply, the input power supply loop of the rail power supply is as follows: rail power supply negative output - bridge rectifier circuit negative input point C - diode D3 - bridge rectifier circuit positive output point B - electronic price tag logic circuit - bridge rectifier circuit negative output point D - diode D1 - bridge rectifier circuit positive input point A - rail power supply positive output.

[0053] Therefore, when the polarity of the input voltage of the rail power supply changes due to the change in the installation method of the electronic price tag, the presence of the bridge rectifier circuit ensures that the electronic price tag can receive a normal input voltage regardless of the change in input voltage polarity, thus guaranteeing the normal operation of the electronic price tag.

[0054] To enable electronic shelf labels to change their displayed content based on different installation orientations, a posture sensing terminal needs to receive different posture sensing signals and send corresponding posture sensing signals to the electronic shelf label. This allows the MCU processor of the electronic shelf label to determine the current installation orientation based on the posture sensing signals, thereby displaying the content corresponding to the posture sensing signal. Specifically, the posture sensing terminal is connected as follows: one end of the posture sensing terminal is connected to the target input terminal of the bridge rectifier circuit, and the other end of the posture sensing terminal is connected to the logic input terminal of the electronic shelf label.

[0055] The target input terminal is the input terminal connecting the attitude sensing terminal and the bridge rectifier circuit. The attitude sensing terminal can be connected to either the positive or negative input terminal of the bridge rectifier circuit. The other end of the attitude sensing terminal needs to be connected to the logic input terminal of the electronic price tag, i.e., as shown below. Figure 2 The attitude sensing terminal can be connected to the logic input terminal of the MCU processor in the electronic price tag logic circuit to send attitude sensing signals to the electronic price tag. When the logic input terminal (GPIO) of the electronic price tag receives the attitude sensing signal, it can determine the display content corresponding to the attitude sensing signal and display it on the display screen of the electronic price tag.

[0056] In practical applications, when the electronic shelf label is in its first posture, regardless of which input terminal of the bridge rectifier circuit the posture sensor is connected to, the posture sensor will send a posture sensing signal corresponding to the first posture to the logic input terminal of the electronic shelf label. Similarly, when the electronic shelf label is in its second posture, the posture sensor will also send a posture sensing signal corresponding to the second posture to the logic input terminal of the electronic shelf label. For example, when the posture sensor is connected to the positive input terminal of the bridge rectifier circuit and receives the positive voltage of the rail power supply, it will use the positive voltage as the posture sensing signal corresponding to the first posture and send it to the MCU processor of the electronic shelf label; when the posture sensor is connected to the negative input terminal of the bridge rectifier circuit and receives the negative voltage of the rail power supply, it will use the negative voltage as the posture sensing signal corresponding to the first posture and send it to the MCU processor of the electronic shelf label. Subsequently, only the display logic of the MCU processor of the electronic shelf label needs to be adjusted to display the corresponding display content according to the posture sensing signal, such as displaying the correct display content when receiving a positive voltage or displaying the correct display content when receiving a negative voltage. Therefore, changing the connection between the attitude sensing terminal and the bridge rectifier circuit only requires adjusting the display logic of the MCU processor.

[0057] In practical applications, when the voltage of the rail power supply is inconsistent with the voltage withstand of the logic input terminal of the MCU processor inside the electronic price tag, a voltage regulator circuit can be set in the electronic price tag display control circuit to adjust the voltage output by the rail power supply to the voltage withstand of the MCU processor. Specifically, the circuit also includes a voltage regulator circuit, wherein one end of the attitude sensing terminal is connected to the target input terminal of the bridge rectifier circuit, the other end of the attitude sensing terminal is connected to the input terminal of the voltage regulator circuit, and the output terminal of the voltage regulator circuit is connected to the electronic price tag.

[0058] like Figure 3 As shown, Figure 3This is a voltage regulator circuit diagram of an electronic price tag display control circuit provided in one embodiment of this specification. P1 is the input terminal of the voltage regulator circuit, used to connect to the attitude sensing terminal P. When the attitude sensing terminal is connected to the positive input terminal of the bridge rectifier circuit, if the rail power supply is higher than the maximum voltage that the MCU processor's logic input terminal can withstand, the positive voltage of the rail power supply needs to be regulated to the maximum withstand voltage of the MCU processor's logic input terminal to ensure the normal operation of the MCU processor. The output terminal of the voltage regulator circuit is connected to the electronic price tag. Specifically, the voltage regulator circuit also includes a current-limiting resistor R1 and a clamping diode D1. One end of the current-limiting resistor R1 is connected to the input terminal of the voltage regulator circuit, and the other end is connected to the positive output terminal P2 of the voltage regulator circuit. The attitude sensing signal is input to the logic input terminal of the MCU processor through the positive output terminal P2 of the voltage regulator circuit. The cathode of the clamping diode D1 is connected to the positive output terminal of the voltage regulator circuit, and the anode is connected to the negative output terminal of the voltage regulator circuit. The negative output terminal of the voltage regulator circuit is connected to the low-level GND input terminal of the MCU processor.

[0059] Correspondingly, an LDO voltage converter circuit can also be connected to the output of the bridge rectifier circuit to provide the appropriate operating voltage for the MCU processor and ensure its normal operation. Specifically, the output of the bridge rectifier circuit is connected to the input of the LDO voltage converter circuit, and the output of the LDO voltage converter circuit is connected to the electronic price tag. In practice, the positive output of the LDO voltage converter circuit is connected to the positive VCC input of the MCU processor, and the negative output of the LDO voltage converter circuit is connected to the negative GND input of the MCU processor, thereby providing a suitable operating voltage for the MCU.

[0060] In another feasible approach, the display content of the electronic price tag can be quickly replaced without adjusting its installation method. To enable the attitude sensor to detect different signals, the polarity of the rail power supply can be adjusted to change the attitude sensing signal, thereby replacing the displayed content. Specifically, switching the rail power supply polarity can be achieved through an external power polarity conversion circuit, which switches the voltage polarity of the rail power input to the bridge rectifier circuit, thus achieving the purpose of replacing the display content.

[0061] This specification provides an electronic price tag display control circuit, including a bridge rectifier circuit and an attitude sensing terminal. In a first attitude, the bridge rectifier circuit is forward-connected to the rail power supply and to the electronic price tag itself. The attitude sensing terminal is connected to both the bridge rectifier circuit and the electronic price tag. In a second attitude, the bridge rectifier circuit is reverse-connected to the rail power supply and to the electronic price tag itself. The attitude sensing terminal is connected to both the bridge rectifier circuit and the electronic price tag itself. This invention implements a display control circuit that, under different postures of the electronic shelf label, changes the connection between the bridge rectifier circuit and the rail power supply in the display control circuit. This allows the posture sensing end to detect posture sensing signals of different polarities and send these signals to the logic circuit of the electronic shelf label. The MCU processor in the logic circuit can then determine the installation posture of the electronic shelf label based on these different posture sensing signals and display the corresponding content. This achieves the goal of quickly replacing the displayed content of the electronic shelf label, reducing the need for manual content replacement by staff, improving the efficiency of content replacement, providing customers with accurate display content in real time, and bringing a better shopping experience.

[0062] Figure 4 A flowchart is shown of a content display method based on an electronic price tag display control circuit according to an embodiment of this specification, including steps 402 to 404.

[0063] Step 402: In response to the power-on command, acquire the attitude sensing signal corresponding to the electronic price tag, wherein different attitude sensing signals correspond to different display content.

[0064] The power-on command can be understood as the command to power on the electronic price tag. After the electronic price tag is installed on the power supply of the guide rail, the electronic price tag will be powered on and start working. At this time, the electronic price tag will acquire the attitude sensing signal. Different attitude sensing signals correspond to different display content. The attitude sensing signal is used to characterize the installation attitude of the electronic price tag. For example, when the electronic price tag is installed upright, the attitude sensing signal is the upright installation attitude sensing signal, and the display content corresponding to the upright installation attitude sensing signal can be displayed later.

[0065] In practical applications, electronic price tags process attitude sensing signals through an internal processor. After acquiring the attitude sensing signals upon power-up, they display the corresponding content based on the attitude sensing signals.

[0066] In one embodiment of this specification, in response to a power-on command, the attitude sensing signal corresponding to the current electronic price tag is acquired, and the attitude sensing signal is an upright attitude sensing signal.

[0067] Step 404: Determine the target display content corresponding to the attitude sensing signal, and display the target display content on the electronic price tag.

[0068] The target display content corresponds to the current attitude sensing signal. For example, the target display content corresponding to a positive attitude sensing signal is the positive display content, and the target display content corresponding to a negative attitude sensing signal is the negative display content. In practice, the electronic price tag processes the attitude sensing signal through its internal processor. After determining the target display content based on the attitude sensing signal, the target display content can be displayed on the electronic price tag. This allows for the acquisition of different attitude sensing signals by adjusting the installation method of the electronic price tag, thereby obtaining the corresponding display content and displaying it on the electronic price tag.

[0069] To enable electronic shelf labels to display different content under different installation methods, preset display content can be stored internally. For example, in upright installation, the price information of the product is displayed normally; in reverse installation, the information that the product is sold out is displayed. Therefore, different display content needs to be set according to different posture sensing signals. Subsequently, different display content can be determined based on the posture sensing signals. Specifically, when the posture sensing signal is a first posture sensing signal, the electronic shelf label is determined to be in a first posture and the corresponding first posture display content, and the first posture display content is used as the target display content; when the posture sensing signal is a second posture sensing signal, the electronic shelf label is determined to be in a second posture and the corresponding second posture display content, and the second posture display content is used as the target display content.

[0070] The first posture display content can be understood as the content that the electronic price tag should display when it is in its first posture, and the second posture display content can be understood as the content that the electronic price tag should display when it is in its second posture. Therefore, the displayed content will differ depending on the posture of the electronic price tag. In practical applications, whether the first or second posture corresponds to the upright or reversed installation of the electronic price tag can be set according to the actual situation. The first posture can be either upright or reversed; the second posture can be either upright or reversed. However, it is important to note that the corresponding display content for each posture must be set correctly to avoid the error of displaying the opposite content under different postures.

[0071] In a specific embodiment of this specification, after obtaining the attitude sensing signal, when the attitude sensing signal is a first attitude, it is determined that the electronic price tag is in a formal posture. The content to be displayed in the first posture of the formal posture is obtained and displayed on the electronic price tag.

[0072] This specification provides a content display method based on an electronic price tag display control circuit, applied to electronic price tags. The method includes: responding to a power-on command, acquiring a posture sensing signal corresponding to the electronic price tag, wherein different posture sensing signals correspond to different display content; determining the target display content corresponding to the posture sensing signal; and displaying the target display content on the electronic price tag. This method enables the electronic price tag to acquire a posture sensing signal upon receiving a power-on command, determine the target display content corresponding to the posture sensing signal, and display it on the electronic price tag. This achieves the goal of quickly changing the display content of the electronic price tag, allowing staff to replace the content without the need for replacement tools, thus improving staff efficiency.

[0073] The following is in conjunction with the appendix Figure 5 Taking the application of the content display method based on the electronic price tag display control circuit provided in this specification in supermarket stores as an example, the content display method based on the electronic price tag display control circuit will be further explained. Among them, Figure 5 The present specification shows a flowchart of a content display method based on an electronic price tag display control circuit according to an embodiment of the present specification, with specific steps including steps 502 to 506.

[0074] Step 502: In response to the power-on command, acquire the attitude sensing signal corresponding to the electronic price tag.

[0075] In one feasible implementation, after the worker mounts the electronic price tag face-up onto the power rail, the electronic price tag receives power and begins operation, acquiring the current attitude sensing signal. The electronic price tag internally includes a display control circuit, which consists of a bridge rectifier circuit and an attitude sensing terminal. When the electronic price tag is in the upright mounting position, the bridge rectifier circuit is forward-connected to the power rail and to the logic circuit of the electronic price tag. The two ends of the attitude sensing terminal are connected to both the bridge rectifier circuit and the logic circuit of the electronic price tag. When the electronic price tag is in the reverse mounting position, the bridge rectifier circuit is reverse-connected to the power rail and to the logic circuit of the electronic price tag. The two ends of the attitude sensing terminal are connected to both the bridge rectifier circuit and the logic circuit of the electronic price tag.

[0076] Furthermore, a forward connection between the bridge rectifier circuit and the rail power supply can be achieved by connecting the positive input terminal of the bridge rectifier circuit to the positive output terminal of the rail power supply, and the negative input terminal of the bridge rectifier circuit to the negative output terminal of the rail power supply. Specifically, the connection point between diodes D4 and D1 in the bridge rectifier circuit is the positive input terminal, and the connection point between diodes D3 and D4 is the negative input terminal. A reverse connection between the bridge rectifier circuit and the rail power supply can be achieved by connecting the positive input terminal of the bridge rectifier circuit to the negative output terminal of the rail power supply, and the negative input terminal of the bridge rectifier circuit to the positive output terminal of the rail power supply.

[0077] Furthermore, the bridge rectifier circuit can be connected to the electronic price tag in the forward direction by connecting the positive output terminal of the bridge rectifier circuit to the positive input terminal of the electronic price tag's power supply, and connecting the negative output terminal of the bridge rectifier circuit to the negative input terminal of the electronic price tag's power supply. In this case, the connection point of diodes D2 and D3 in the bridge rectifier circuit is the positive output terminal of the bridge rectifier circuit, and the connection point of diodes D3 and D4 is the negative output terminal of the bridge rectifier circuit.

[0078] Step 504: Determine that the attitude sensing signal is the upright posture sensing signal, and determine the content displayed on the electronic price tag in the upright posture and the corresponding upright posture.

[0079] In one feasible approach, the obtained attitude sensing signal is a formal attire attitude sensing signal, and the formal attire attitude display content corresponding to the preset formal attire attitude sensing signal is obtained. The formal attire attitude display content includes information such as the price of the product.

[0080] Furthermore, the posture sensing signal can be obtained through the logic input terminal of the electronic price tag, and the processor in the logic circuit of the electronic price tag can process the posture sensing signal to obtain the formal posture display content corresponding to the posture sensing signal, which can then drive the electronic screen to display the formal posture content.

[0081] Step 506: Display the formal attire display content on the electronic price tag.

[0082] In one feasible approach, the content displaying the formal attire is shown on the electronic price tag, allowing the content to be determined based on the installation orientation of the electronic price tag.

[0083] This manual provides a content display method based on an electronic shelf label display control circuit. The method enables the electronic shelf label to acquire a posture sensing signal upon receiving a power-on command, determine the target display content corresponding to the posture sensing signal, and display it on the electronic shelf label. This achieves the goal of quickly replacing the electronic shelf label display content, reducing the steps of manual content replacement by staff, improving the efficiency of electronic shelf label display content replacement, providing customers with accurate display content in real time, and bringing a better shopping experience to customers.

[0084] Corresponding to the above method embodiments, this specification also provides embodiments of a content display method apparatus based on an electronic price tag display control circuit. Figure 6 This specification shows a schematic diagram of a content display method device based on an electronic price tag display control circuit, according to an embodiment of this specification. Figure 6 As shown, the device includes:

[0085] The acquisition module 602 is configured to acquire the posture sensing signal corresponding to the electronic price tag in response to a power-on command, wherein different posture sensing signals correspond to different display content;

[0086] The display module 604 is configured to determine the target display content corresponding to the attitude sensing signal and display the target display content on the electronic price tag.

[0087] Furthermore, the display module 604 is further configured as follows:

[0088] When the attitude sensing signal is a first attitude sensing signal, the electronic price tag is determined to be in a first attitude and the first attitude display content corresponding to the first attitude, and the first attitude display content is taken as the target display content.

[0089] When the attitude sensing signal is a second attitude sensing signal, the electronic price tag is determined to be in a second attitude and the second attitude display content is redundant, and the second attitude display content is taken as the target display content.

[0090] This specification provides a content display device based on an electronic price tag display control circuit, comprising: an acquisition module configured to acquire an attitude sensing signal corresponding to the electronic price tag in response to a power-on command, wherein different attitude sensing signals correspond to different display content; and a display module configured to determine the target display content corresponding to the attitude sensing signal and display the target display content on the electronic price tag. This device enables the electronic price tag to acquire an attitude sensing signal upon receiving a power-on command, determine the target display content corresponding to the attitude sensing signal, and display it on the electronic price tag. This achieves the goal of quickly changing the display content of the electronic price tag, allowing staff to replace the content without the need for replacement tools, thus improving staff processing efficiency.

[0091] The above is a schematic scheme of a content display device based on an electronic price tag display control circuit according to this embodiment. It should be noted that the technical solution of this content display device based on an electronic price tag display control circuit and the technical solution of the content display method based on an electronic price tag display control circuit described above belong to the same concept. Details not described in detail in the technical solution of the content display device based on an electronic price tag display control circuit can be found in the description of the technical solution of the content display method based on an electronic price tag display control circuit described above.

[0092] Figure 7 A structural block diagram of a computing device 700 according to an embodiment of this specification is shown. The components of the computing device 700 include, but are not limited to, a memory 710 and a processor 720. The processor 720 is connected to the memory 710 via a bus 730, and a database 750 is used to store data.

[0093] The computing device 700 also includes an access device 740, which enables the computing device 700 to communicate via one or more networks 760. Examples of these networks include a Public Switched Telephone Network (PSTN), a Local Area Network (LAN), a Wide Area Network (WAN), a Personal Area Network (PAN), or a combination of communication networks such as the Internet. The access device 740 may include one or more of any type of wired or wireless network interface (e.g., a Network Interface Card (NIC)), such as an IEEE 802.11 Wireless Local Area Network (WLAN) interface, a Wi-MAX interface, an Ethernet interface, a Universal Serial Bus (USB) interface, a cellular network interface, a Bluetooth interface, a Near Field Communication (NFC) interface, and so on.

[0094] In one embodiment of this specification, the above-described components of the computing device 700 and Figure 7 Other components, not shown, can also be connected to each other, for example, via a bus. It should be understood that... Figure 7The block diagram of the computing device shown is for illustrative purposes only and is not intended to limit the scope of this specification. Those skilled in the art can add or replace other components as needed.

[0095] The computing device 700 can be any type of stationary or mobile computing device, including mobile computers or mobile computing devices (e.g., tablet computers, personal digital assistants, laptop computers, notebook computers, netbooks, etc.), mobile phones (e.g., smartphones), wearable computing devices (e.g., smartwatches, smart glasses, etc.) or other types of mobile devices, or stationary computing devices such as desktop computers or PCs. The computing device 700 can also be a mobile or stationary server.

[0096] The processor 720 executes the computer instructions to implement the content display method based on the electronic price tag display control circuit.

[0097] The above is an illustrative scheme of a computing device according to this embodiment. It should be noted that the technical solution of this computing device and the technical solution of the content display method based on the electronic price tag display control circuit described above belong to the same concept. For details not described in detail in the technical solution of the computing device, please refer to the description of the technical solution of the content display method based on the electronic price tag display control circuit described above.

[0098] An embodiment of this specification also provides a computer-readable storage medium storing computer instructions that, when executed by a processor, implement the steps of the content display method based on the electronic price tag display control circuit as described above.

[0099] The above is an illustrative scheme of a computer-readable storage medium according to this embodiment. It should be noted that the technical solution of this storage medium belongs to the same concept as the technical solution of the content display method based on the electronic price tag display control circuit described above. Details not described in detail in the technical solution of the storage medium can be found in the description of the technical solution of the content display method based on the electronic price tag display control circuit described above.

[0100] An embodiment of this specification also provides a computer program, wherein when the computer program is executed in a computer, it causes the computer to perform the steps of the content display method based on the electronic price tag display control circuit described above.

[0101] The above is an illustrative scheme of a computer program according to this embodiment. It should be noted that the technical solution of this computer program and the technical solution of the content display method based on the electronic price tag display control circuit described above belong to the same concept. For details not described in detail in the technical solution of the computer program, please refer to the description of the technical solution of the content display method based on the electronic price tag display control circuit described above.

[0102] The foregoing has described specific embodiments of this specification. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recited in the claims may be performed in a different order than that shown in the embodiments and may still achieve the desired result. Furthermore, the processes depicted in the drawings do not necessarily require the specific or sequential order shown to achieve the desired result. In some embodiments, multitasking and parallel processing are possible or may be advantageous.

[0103] The computer instructions include computer program code, which may be in the form of source code, object code, executable file, or some intermediate form. The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording media, USB flash drive, portable hard drive, magnetic disk, optical disk, computer memory, read-only memory (ROM), random access memory (RAM), electrical carrier signals, telecommunication signals, and software distribution media, etc. It should be noted that the content included in the computer-readable medium may be appropriately added to or subtracted according to the requirements of legislation and patent practice in the jurisdiction. For example, in some jurisdictions, according to legislation and patent practice, computer-readable media may not include electrical carrier signals and telecommunication signals.

[0104] It should be noted that, for the sake of simplicity, the foregoing method embodiments are all described as a series of actions. However, those skilled in the art should understand that the embodiments in this specification are not limited to the described order of actions, because according to the embodiments in this specification, some steps can be performed in other orders or simultaneously. Furthermore, those skilled in the art should also understand that the embodiments described in this specification are all preferred embodiments, and the actions and modules involved are not necessarily essential to the embodiments in this specification.

[0105] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0106] The preferred embodiments disclosed above are merely illustrative of this specification. The optional embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the embodiments described herein. These embodiments are selected and specifically described in this specification to better explain the principles and practical applications of the embodiments, thereby enabling those skilled in the art to better understand and utilize this specification. This specification is limited only by the claims and their full scope and equivalents.

Claims

1. An electronic price tag display control circuit, the circuit comprising: Bridge rectifier circuit, attitude sensing terminal; In the first posture, the bridge rectifier circuit is positively connected to the rail power supply and the electronic price tag. The two ends of the posture sensing terminal are respectively connected to the bridge rectifier circuit and the electronic price tag. The posture sensing terminal inputs the sensing signal corresponding to the first posture to the logic circuit of the electronic price tag so that the electronic price tag displays the display content corresponding to the first posture. Here, the positive connection means that the positive input terminal is connected to the positive output terminal and the negative input terminal is connected to the negative output terminal. In the second posture, the bridge rectifier circuit is reverse-connected to the rail power supply and forward-connected to the electronic price tag. The two ends of the posture sensing terminal are respectively connected to the bridge rectifier circuit and the electronic price tag. The posture sensing terminal inputs the sensing signal corresponding to the second posture to the logic circuit of the electronic price tag so that the electronic price tag displays the display content corresponding to the second posture. The reverse connection means that the positive input terminal is connected to the negative output terminal and the negative input terminal is connected to the positive output terminal.

2. The circuit as described in claim 1, wherein in the first orientation, the bridge rectifier circuit is positively connected to the rail power supply, and the bridge rectifier circuit is positively connected to the electronic price tag, comprising: In the first position, the positive input terminal of the bridge rectifier circuit is connected to the positive output terminal of the rail power supply, the negative input terminal of the bridge rectifier circuit is connected to the negative output terminal of the rail power supply, the positive output terminal of the bridge rectifier circuit is connected to the positive input terminal of the power supply of the electronic price tag, and the negative output terminal of the bridge rectifier circuit is connected to the negative input terminal of the power supply of the electronic price tag.

3. The circuit as described in claim 1, wherein in the second posture, the bridge rectifier circuit is reverse-connected to the rail power supply, and the bridge rectifier circuit is forward-connected to the electronic price tag, comprising: In the second posture, the positive input terminal of the bridge rectifier circuit is connected to the negative output terminal of the rail power supply, the negative input terminal of the bridge rectifier circuit is connected to the positive output terminal of the rail power supply, the positive output terminal of the bridge rectifier circuit is connected to the positive input terminal of the power supply of the electronic price tag, and the negative output terminal of the bridge rectifier circuit is connected to the negative input terminal of the power supply of the electronic price tag.

4. The circuit according to any one of claims 1 to 3, wherein the two ends of the attitude sensing terminal are respectively connected to the bridge rectifier circuit and the electronic price tag, comprising: One end of the attitude sensing terminal is connected to the target input terminal of the bridge rectifier circuit, and the other end of the attitude sensing terminal is connected to the logic input terminal of the electronic price tag.

5. The circuit as described in claim 1, wherein the bridge rectifier circuit includes diodes D1, D2, D3, and D4, wherein, The cathode of diode D1 is connected to the anode of diode D2, the cathode of diode D2 is connected to the cathode of diode D3, the anode of diode D3 is connected to the cathode of diode D4, and the anode of diode D4 is connected to the anode of diode D1.

6. The circuit as described in claim 5, wherein the connection point of diode D1 and diode D2 serves as the positive input terminal of the bridge rectifier circuit, the connection point of diode D2 and diode D3 serves as the positive output terminal of the bridge rectifier circuit, the connection point of diode D3 and diode D4 serves as the negative input terminal of the bridge rectifier circuit, and the connection point of diode D4 and diode D1 serves as the negative output terminal of the bridge rectifier circuit.

7. The circuit of claim 1, further comprising a voltage regulator circuit, wherein, One end of the attitude sensing terminal is connected to the target input terminal of the bridge rectifier circuit, the other end of the attitude sensing terminal is connected to the input terminal of the voltage regulator circuit, and the output terminal of the voltage regulator circuit is connected to the electronic price tag.

8. The circuit of claim 7, wherein the voltage regulator circuit includes a current-limiting resistor and a clamping diode, wherein, One end of the current-limiting resistor is connected to the input terminal of the voltage regulator circuit, and the other end of the current-limiting resistor is connected to the positive output terminal of the voltage regulator circuit. The cathode of the clamping diode is connected to the positive output terminal of the voltage regulator circuit, and the anode of the clamping diode is connected to the negative output terminal.

9. A content display method based on an electronic price tag display control circuit, applied to an electronic price tag, wherein the electronic price tag internally includes the electronic price tag display control circuit as described in any one of claims 1-8, and the method includes: In response to a power-on command, the posture sensing signal corresponding to the electronic price tag is acquired, wherein different posture sensing signals correspond to different display content; The target display content corresponding to the attitude sensing signal is determined, and the target display content is displayed on the electronic price tag.

10. The method of claim 9, wherein determining the target display content corresponding to the attitude sensing signal includes: When the attitude sensing signal is a first attitude sensing signal, the electronic price tag is determined to be in a first attitude and the first attitude display content corresponding to the first attitude, and the first attitude display content is taken as the target display content. When the attitude sensing signal is a second attitude sensing signal, the electronic price tag is determined to be in a second attitude and the second attitude display content corresponding to the second attitude, and the second attitude display content is taken as the target display content.

11. A content display device based on an electronic price tag display control circuit, wherein the electronic price tag internally comprises the electronic price tag display control circuit as described in any one of claims 1-8, the device comprising: The acquisition module is configured to acquire the attitude sensing signal corresponding to the electronic price tag in response to a power-on command, wherein different attitude sensing signals correspond to different display content; The display module is configured to determine the target display content corresponding to the attitude sensing signal and display the target display content on the electronic price tag.

12. A computing device comprising a memory, a processor, and computer instructions stored in the memory and executable on the processor, wherein the processor, when executing the computer instructions, performs the steps of the method of claim 9 or 10.

13. A computer-readable storage medium storing computer-executable instructions that, when executed by a processor, implement the steps of the method of claim 9 or 10.

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