LED rental large screen rapid configuration system and method based on UWB positioning technology

Abstract

The invention discloses an LED rental large screen rapid configuration system and method based on a UWB positioning technology, and relates to the technical field of LED display. Comprising UWB positioning labels, wherein each LED box body is provided with one UWB positioning label, and the UWB positioning labels are used for transmitting UWB signals; the UWB positioning base stations are arranged around the LED rental large screen installation area and used for receiving signals sent by the UWB positioning labels and calculating the position information of the labels; the central control unit is used for receiving the position data transmitted by the UWB positioning base station and automatically calculating the relative position relation of the box bodies according to a preset box body layout rule; the receiving card configuration module is used for automatically generating configuration information of a receiving card according to the position relation of the box body; the information is sent to each receiving card in a wired or wireless mode; and the LED box body comprises an LED display unit and a receiving card, and the receiving card is responsible for receiving and processing the configuration information and adjusting the working state of the LED display unit so as to realize correct image display.

Description

Technical Field

[0001] The invention belongs to the technical field of LED display, and relates to a system and method for quickly configuring a large-screen LED rental screen based on UWB positioning technology. Background Art

[0002] LED rental screens are widely used in various temporary events such as concerts, exhibitions, and conferences due to their high flexibility and easy assembly and disassembly. After the traditional LED rental screens are assembled, the position relationship of each LED cabinet needs to be manually configured to ensure that the image can be displayed correctly. This process is not only time-consuming and labor-intensive, but also prone to errors, especially in large-scale rental screen projects, where there are many cabinets and the position relationship is complex, and the configuration work is particularly cumbersome.

[0003] With the development of science and technology, especially the progress of wireless positioning technology, new solutions have been provided for the automatic configuration of rental LED large screens. Ultra-Wideband (UWB) positioning technology has been widely used in the field of indoor positioning due to its advantages such as high precision and strong anti-interference ability. Applying UWB positioning technology to the cabinet configuration of rental LED large screens can realize the automatic positioning and configuration of the cabinet, greatly improving the assembly efficiency and accuracy.

[0004] However, how to combine UWB positioning technology with the cabinet configuration of the LED rental large screen to achieve fast and accurate automatic configuration is the current technical challenge. Summary of the invention

[0005] In order to make up for the deficiencies of the prior art, the present invention provides a system and method for quickly configuring a large-screen LED rental screen based on UWB positioning technology. The present invention solves the above problems through automated means and improves the usability and efficiency of the rental screen. The present invention is implemented through the following technical solutions: The present invention provides a system for quickly configuring a large-screen LED rental screen based on UWB positioning technology, including a UWB positioning tag: A UWB positioning tag is installed on each LED box to transmit a UWB signal for reception by a UWB positioning base station; UWB positioning base station: arranged around or in key locations of the LED rental screen installation area. The installation area is the area covered by the connection lines of each positioning base station. It must be able to cover the entire LED screen, that is, the minimum deployment range is the four corners of the LED screen. It is used to receive the signal sent by the UWB positioning tag and calculate the location information of the tag. The TDoA positioning algorithm and the encapsulated pyuwb function library are used to output the coordinates of each tag. Central control unit: receives the location data transmitted by the UWB positioning base station and automatically calculates the relative position relationship of each box according to the preset box layout rules; Receiving card configuration module: according to the cabinet position relationship calculated by the central control unit, the configuration information of the receiving card is automatically generated; the configuration information mainly includes the order of signal passing, which is defined as a digital type from 0 to n. Each cabinet has a unique number, which is arranged in ascending order; and is sent to each receiving card via wired or wireless means; LED cabinet: contains LED display unit and receiving card. The receiving card is responsible for receiving and processing the configuration information from the central control unit and adjusting the working state of the LED display unit to achieve correct image display.

[0006] The LED rental large screen rapid configuration method based on UWB positioning technology includes the following steps: Step 1: System initialization; Before installing the rental LED screen, the system must be initialized first; including installing the UWB positioning base station to ensure that its position is fixed and reasonably distributed to cover the entire rental screen installation area; installing UWB positioning tags for each LED cabinet and ensuring that the connection between the UWB positioning tag and the cabinet is stable and reliable; configuring the central control unit, including setting the basic parameters of the base station coordinates, cabinet size, and resolution; Step 2: Cabinet assembly and UWB signal transmission; At the rental screen installation site, the LED cabinets are assembled according to the requirements. After the assembly is completed, the UWB positioning tags of all cabinets begin to transmit UWB signals. Step 3: Location data collection and calculation; The UWB positioning base station receives the UWB signal from each box and transmits the signal to the central control unit; the central control unit uses the positioning algorithm to calculate the precise position, i.e., the coordinates, of each box; Step 4: Automatically configure the receiving card; The central control unit automatically generates the configuration information of the receiving card based on the calculated cabinet position relationship and the preset cabinet layout rules; the information includes the position coordinates and relative position parameters of each cabinet in the overall layout; Subsequently, the central control unit sends the configuration information to each receiving card via Ethernet; the receiving card automatically adjusts the working state of the LED display unit according to the received configuration information to ensure that the image can be displayed correctly; Step 5: System verification and optimization; After the receiving card is configured, the system performs a verification to check whether the displays of each cabinet are consistent and the images are complete.

[0007] The beneficial effects of the present invention are: Improve assembly efficiency: The UWB positioning technology automatically determines the position relationship of the cabinet, avoiding the tedious process of manual configuration and significantly improving assembly efficiency.

[0008] Improve accuracy: UWB positioning technology has high precision and can accurately calculate the position of each box to ensure the correct display of the image and reduce display problems caused by configuration errors.

[0009] Enhanced ease of use: The ready-to-use feature makes the assembly and use of the LED rental screen more convenient, reduces dependence on professionals, and improves user experience.

[0010] Reduce costs: Automated configuration reduces labor costs and time costs, and has obvious economic benefits for rental screen projects that are frequently disassembled and assembled.

[0011] Scalability: The system architecture is flexible and easy to expand. With the development of UWB positioning technology and the improvement of LED cabinet design, the system performance can be further improved to adapt to a wider range of application scenarios.

[0012] After the LED cabinets are reassembled, the invented system can automatically determine the positional relationship of each cabinet through UWB positioning technology, and automatically configure the receiving card accordingly, so as to realize the ready-to-use rental LED large screen, and significantly improve the assembly efficiency and ease of use of the rental screen.

[0013] The present invention realizes efficient and automatic configuration of the position relationship of each LED box during the frequent disassembly and assembly of the LED rental large screen, and achieves the technical effects of rapid assembly and ready-to-use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention will be further described below in conjunction with the accompanying drawings; Figure 1 is a system architecture diagram of the present invention; Figure 2 It is a working flow chart of the method of the present invention; Figure 3 This is a schematic diagram of the arrangement of the UWB positioning base station and the UWB tag of the present invention. DETAILED DESCRIPTION

[0015] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0016] The attached figure is a specific embodiment of the LED rental large screen rapid configuration system and method based on UWB positioning technology of the present invention. The LED rental large screen rapid configuration system based on UWB positioning technology includes a UWB positioning tag: a UWB positioning tag is installed on each LED box to transmit a UWB signal for reception by a UWB positioning base station.

[0017] UWB positioning base station: arranged around or in key locations of the LED rental screen installation area. The installation area is the area covered by the connection lines of each positioning base station. It must be able to cover the entire LED screen, that is, the minimum deployment range is the four corners of the LED screen. It is used to receive the signal sent by the UWB positioning tag and calculate the location information of the tag. The TDoA positioning algorithm and the encapsulated pyuwb function library are used to output the coordinates of each tag.

[0018] Central control unit: receives the location data transmitted by the UWB positioning base station and automatically calculates the relative position relationship of each box according to the preset box layout rules.

[0019] Receiving card configuration module: According to the cabinet position relationship calculated by the central control unit, the configuration information of the receiving card is automatically generated; the configuration information mainly includes the order in which the signals pass through, which is defined as a digital type from 0 to n. Each cabinet has a unique number, which is arranged in ascending order; and is sent to each receiving card via wired or wireless means.

[0020] LED cabinet: contains LED display unit and receiving card. The receiving card is responsible for receiving and processing the configuration information from the central control unit and adjusting the working state of the LED display unit to achieve correct image display.

[0021] UWB positioning method: Utilizing the high temporal resolution characteristics of UWB signals, by measuring the time difference (TDOA) or angle of arrival (AOA) of the signal from the UWB positioning tag to multiple UWB positioning base stations, combined with the base station location information, using triangulation positioning or multi-point positioning algorithm, the three-dimensional position of the UWB positioning tag is accurately calculated.

[0022] Automatic configuration algorithm: The central control unit has a built-in automatic configuration algorithm. This algorithm automatically calculates the relative position relationship between the boxes based on the box position information provided by the UWB positioning base station, combined with the preset box size and resolution parameters, and generates configuration instructions for the receiving card.

[0023] The LED rental large screen rapid configuration method based on UWB positioning technology includes the following steps: Step 1: System initialization; Before installing the LED rental screen, the system should be initialized first; including installing the UWB positioning base station to ensure that its position is fixed and reasonably distributed to cover the entire rental screen installation area; installing UWB positioning tags for each LED cabinet and ensuring that the connection between the UWB positioning tag and the cabinet is stable and reliable; configuring the central control unit, including setting the basic parameters of the base station coordinates, cabinet size, and resolution.

[0024] Step 2: Cabinet assembly and UWB signal transmission; At the rental screen installation site, the LED cabinets are assembled as required; after assembly, the UWB positioning tags of all cabinets begin to transmit UWB signals.

[0025] Step 3: Location data collection and calculation; The UWB positioning base station receives the UWB signal from each box and transmits the signal to the central control unit; the central control unit uses the positioning algorithm to calculate the precise position, i.e., the coordinates, of each box.

[0026] Step 4: Automatically configure the receiving card; The central control unit automatically generates the configuration information of the receiving card according to the calculated cabinet position relationship and the preset cabinet layout rules; the information includes the position coordinates and relative position parameters of each cabinet in the overall layout.

[0027] Subsequently, the central control unit sends the configuration information to each receiving card via Ethernet; the receiving card automatically adjusts the working state of the LED display unit according to the received configuration information to ensure that the image can be displayed correctly.

[0028] Step 5: System verification and optimization; After the receiving card is configured, the system performs a verification to check whether the display of each cabinet is consistent and the image is complete. If necessary, the central control unit can make fine adjustments based on the verification results to further optimize the display effect.

[0029] Step 6: Install and use After the above steps, the LED rental screen can be quickly configured and ready to use. Users do not need to manually adjust the position of the cabinet, which greatly saves installation time and labor costs.

[0030] Embodiment 1: This embodiment further describes in detail the specific implementation of UWB positioning technology in the rapid configuration of LED rental large screens.

[0031] 1. Hardware preparation: UWB positioning tag: Choose a UWB positioning tag with high precision and low power consumption to ensure stable signal transmission and reception in complex environments. The UWB positioning tag uses the DW1000 chip for schematic and PCB design. After the program is burned in, it can send signals to the base station, and the base station calculates the distance based on the signal transmission time.

[0032] UWB positioning base station: According to the size and shape of the installation area of ​​the LED rental large screen, the UWB positioning base station is reasonably arranged to ensure unimpeded communication between base stations and between base stations and tags.

[0033] Central control unit: Use a high-performance computing device with computing power above the STM32F103 processor, with powerful data processing and storage capabilities to meet the needs of real-time position calculation and configuration information generation.

[0034] Receiving card configuration module: uses a reliable Ethernet connection to ensure that configuration information can be sent to each receiving card accurately and quickly.

[0035] 2. Software implementation: Positioning algorithm: It uses advanced UWB positioning algorithm, based on TDOA (Time Difference of Arrival) or AOA (Angle of Arrival) algorithm, to achieve high-precision three-dimensional position calculation. The arrival time difference of UWB signals received by multiple positioning base stations is used to calculate the position of the object to be measured. By measuring the time difference between different base stations receiving the same signal, the distance between the positioning tag and each positioning base station can be calculated. Multiple curves are drawn with each positioning base station as the center of the circle. The intersection of these curves is the position of the object to be measured. The coordinates of each positioning base station are known. According to the known coordinate points and distances, the coordinates of the positioning tag can be calculated. This positioning algorithm can call the packaged library, and the relevant data can be directly input through the function interface to output the positioning coordinates. The relevant function library is: pyuwb.

[0036] Automatic configuration algorithm: According to the preset cabinet layout rules and position relationship, an efficient automatic configuration algorithm is designed to quickly generate the configuration information of the receiving card. The automatic configuration algorithm adopts the habit of manual configuration, such as the bow-shaped routing method. Because the position of each uwb tag is known through the above steps, it can be laid out according to the pre-set bow and give the order of each cabinet.

[0037] User interface: Develop a user-friendly user interface to facilitate users to perform system initialization, real-time monitoring, configuration adjustment and other operations.

[0038] 3. System testing and optimization: In a laboratory environment, the system is comprehensively tested, including positioning accuracy test, configuration efficiency test, stability test, etc., to ensure that the system performance meets the design requirements.

[0039] Based on the test results, the system is optimized and improved, such as adjusting the base station layout, optimizing the positioning algorithm, and improving communication efficiency, to further enhance system performance.

[0040] 4. Field application: In the actual rental screen project, the system is deployed and configured according to the above technical solution. The system's operating status and positioning accuracy are monitored in real time, and system parameters are adjusted and optimized in a timely manner. User feedback and opinions are collected to continuously optimize and improve system functions and services.

[0041] Embodiment 2: This embodiment uses a large-scale concert as the background to demonstrate the application of the present invention in the rapid configuration of a large-scale rental LED screen.

[0042] System initialization: In the concert venue, according to the size and layout of the venue, in accordance with the principle of covering the LED screen area, generally at the four corners of the LED large screen, reasonably install the UWB positioning base station and install the UWB positioning tag for each LED box.

[0043] Cabinet assembly: Before the concert, staff quickly assembled the LED cabinets according to the design drawings, and the UWB positioning tags of all cabinets began to work.

[0044] Position data collection: The UWB positioning base station receives signals from each box and transmits the data to the central control unit in real time.

[0045] Automatic configuration of receiving cards: The central control unit automatically calculates the cabinet position relationship based on the position data and generates receiving card configuration information. The configuration information is sent to each receiving card via the Wi-Fi network.

[0046] System verification: After the receiving card is configured, the system will be verified to ensure that the image is displayed correctly.

[0047] Concert use: The rental LED screen was ready and the concert went on smoothly.

[0048] Disassembly and recycling: After the concert, the staff quickly dismantled the LED cabinet, and the UWB positioning tags and base stations were removed in preparation for the next use.

Claims

1. LED rental large screen rapid configuration system based on UWB positioning technology, characterized by: include UWB positioning tag: A UWB positioning tag is installed on each LED box to transmit UWB signals for reception by the UWB positioning base station; UWB positioning base station: arranged around or in key locations of the LED rental screen installation area. The installation area is the area covered by the connection lines of each positioning base station. It must be able to cover the entire LED screen, that is, the minimum deployment range is the four corners of the LED screen. It is used to receive the signal sent by the UWB positioning tag and calculate the location information of the tag. The TDoA positioning algorithm and the encapsulated pyuwb function library are used to output the coordinates of each tag. Central control unit: receives the location data transmitted by the UWB positioning base station and automatically calculates the relative position relationship of each box according to the preset box layout rules; Receiving card configuration module: according to the cabinet position relationship calculated by the central control unit, the configuration information of the receiving card is automatically generated; the configuration information mainly includes the order of signal passing, which is defined as a digital type from 0 to n. Each cabinet has a unique number, which is arranged in ascending order; and is sent to each receiving card via wired or wireless means; LED cabinet: contains LED display unit and receiving card. The receiving card is responsible for receiving and processing the configuration information from the central control unit and adjusting the working state of the LED display unit to achieve correct image display.

2. According to the UWB positioning technology-based LED rental large screen rapid configuration system of claim 1, it is characterized in that: UWB positioning method: Utilizing the high temporal resolution characteristics of UWB signals, by measuring the time difference (TDOA) or angle of arrival (AOA) of the signal from the UWB positioning tag to multiple UWB positioning base stations, combined with the base station location information, using triangulation positioning or multi-point positioning algorithm, the three-dimensional position of the UWB positioning tag is accurately calculated.

3. The LED rental large screen rapid configuration system based on UWB positioning technology according to claim 1 is characterized in that: Automatic configuration algorithm: The central control unit has a built-in automatic configuration algorithm. This algorithm automatically calculates the relative position relationship between the boxes based on the box position information provided by the UWB positioning base station, combined with the preset box size and resolution parameters, and generates configuration instructions for the receiving card.

4. A fast configuration method for LED rental large screen based on UWB positioning technology, characterized in that: The following steps are included: Step 1: System initialization; Before installing the rental LED screen, the system must be initialized first; including installing the UWB positioning base station to ensure that its position is fixed and reasonably distributed to cover the entire rental screen installation area; installing UWB positioning tags for each LED cabinet and ensuring that the connection between the UWB positioning tag and the cabinet is stable and reliable; configuring the central control unit, including setting the basic parameters of the base station coordinates, cabinet size, and resolution; Step 2: Cabinet assembly and UWB signal transmission; At the rental screen installation site, the LED cabinets are assembled according to the requirements. After the assembly is completed, the UWB positioning tags of all cabinets begin to transmit UWB signals. Step 3: Location data collection and calculation; The UWB positioning base station receives the UWB signal from each box and transmits the signal to the central control unit; the central control unit uses the positioning algorithm to calculate the precise position, i.e., the coordinates, of each box; Step 4: Automatically configure the receiving card; The central control unit automatically generates the configuration information of the receiving card based on the calculated cabinet position relationship and the preset cabinet layout rules; the information includes the position coordinates and relative position parameters of each cabinet in the overall layout; Subsequently, the central control unit sends the configuration information to each receiving card via Ethernet; the receiving card automatically adjusts the working state of the LED display unit according to the received configuration information to ensure that the image can be displayed correctly; Step 5: System verification and optimization; After the receiving card is configured, the system performs a verification to check whether the displays of each cabinet are consistent and the images are complete.

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