LED information screen display method, device and system

Abstract

The application relates to an LED information screen display method, device and system, and relates to the field of LED information screen control, which comprises an LED information screen display method, an LED information screen display device and an LED information screen display system, wherein the LED information screen display method comprises a wind power detection step, a wind power judgment I step, a current angle judgment step, a preliminary rotation step, a post-rotation angle judgment step, a locking step, a rotation trend judgment step and a free rotation step, the LED information screen is controlled in a visual angle range when the wind power is safe, and the LED information screen is rotated when the wind power is threatening. The application can provide protection for the LED information screen on the basis of maintaining the display effect of the LED information screen as much as possible, and reduces the possibility of damage of the LED information screen.

Description

Technical Field

[0001] This invention relates to the field of LED information screen control, and in particular to an LED information screen display method, apparatus and system. Background Technology

[0002] With the development of the national new infrastructure initiative and the progress of 5G full coverage, multifunctional smart poles, with their self-powered, evenly distributed, and widely available characteristics, have become an important type of infrastructure construction and the best carrier for 5G network coverage. By incorporating LED information screens, they can be used for various applications including advertising, traffic guidance, and information dissemination.

[0003] Currently, due to the requirements of the usage environment, some improvements have been made to the wind resistance of smart poles, such as enabling the mounting equipment on the pole to rotate with the wind direction, so as to reduce the deformation or damage to the mounting equipment and the pole when the wind is too strong, thereby improving the service life of the product.

[0004] Currently, Chinese invention patent with publication number CN115831004A and publication date of November 22, 2022, proposes a wind-resistant method, structure, system, facility, and smart LED information screen system, including: locking the LED information screen, judging, unlocking the LED information screen, detecting, resetting, and relocking steps; the wind-resistant system includes environmental sensors and a wind-resistant structure, which includes the LED information screen, connecting carrier, sleeve, and resistance mechanism; the wind-resistant setup includes the facility body and the aforementioned wind-resistant structure or wind-resistant system; the smart LED information screen system includes the aforementioned wind-resistant structure and / or wind-resistant system, and also includes a central processing unit and a display.

[0005] When encountering strong winds, by reducing the rotational resistance of the LED information screen, the LED information screen can rotate, reducing the windward area and thus reducing the wind force on the LED information screen. This reduces the internal stress generated when the LED information screen is blown by the wind, thereby maintaining the lifespan of the LED information screen.

[0006] Regarding the aforementioned technologies, when an LED information screen encounters strong winds, rotating the LED information screen can reduce the windward area and decrease the possibility of damage to the connection between the LED information screen and the light pole. However, as the LED information screen rotates, the angle between the LED information screen and the environment changes. If the rotation exceeds the visible angle range, the LED information screen will no longer be able to achieve its effective use. Summary of the Invention

[0007] To improve the effectiveness of LED information screens, this invention provides a method, apparatus, system, and equipment for displaying LED information screens.

[0008] In a first aspect, the present invention provides an LED information screen display method, which adopts the following technical solution:

[0009] A method for displaying information on an LED screen includes the following steps:

[0010] Wind force detection: Real-time monitoring of the wind force affecting the LED information screen. And to detect wind direction;

[0011] Wind Force Assessment I: Determining the magnitude of the wind force affecting the LED information screen. Is it greater than the maximum wind force that the LED information screen can withstand? If the wind force on the LED information screen is large The wind force is greater than the maximum that the LED information screen can withstand. If the current angle is determined, the current angle judgment step is executed; otherwise, the locking step is executed.

[0012] Current Angle Judgment: Determine the angle β between the current position and the initial position of the LED information screen. If the angle β between the current position and the initial position is less than α, execute the initial rotation step. If the angle β between the current position and the initial position is equal to α, execute the rotation trend judgment step. α is the angle between the initial position and the maximum visible position of the LED information screen.

[0013] Initial rotation: Increasing the rotational resistance between the LED information screen and the connecting carrier. Adjusted to , This allows the LED information screen to rotate relative to the connecting carrier under wind force;

[0014] Angle judgment after rotation: whether the angle β between the current position and the initial position of the LED information screen reaches α. If the angle β between the current position and the initial position of the LED information screen reaches α, then the locking step is executed.

[0015] Locking: Set the rotational resistance between the LED information screen and the connecting carrier to [value]. Rotational resistance This allows the LED information screen to remain in its current position under normal wind conditions, at which point the LED information screen is in a locked state.

[0016] Rotation trend judgment: Determine whether the angle β between the current position and the initial position of the LED information screen has an increasing trend. If the angle β between the current position and the initial position of the LED information screen has an increasing trend, then execute the free rotation step; otherwise, execute the preliminary rotation step.

[0017] Free rotation: reducing rotational resistance between the LED information screen and the connecting carrier. Adjusted to , This allows the LED information screen to rotate relative to the connecting carrier under the action of wind, at which point the LED information screen is in a free rotation state.

[0018] By adopting the above technical solution, the actual wind force experienced by the LED information screen can be calculated according to Bernoulli's equation. =V*V*S / 1600, where V is the wind speed perpendicular to the LED information screen, S is the area of ​​the LED information screen, and S is the maximum wind force that the LED information screen can withstand. By comparing the two systems, the goal is to keep the LED information screen within a visible angle when the wind is safe, and to rotate the LED information screen when the wind is threatening. This approach aims to protect the LED information screen while maintaining its display effect as much as possible, thus reducing the possibility of damage.

[0019] Optionally, the step of determining the angle after rotation may further include a time determination step;

[0020] In the angle determination step after rotation, if the angle between the current position and the initial position of the LED information screen does not reach α, then the time determination step is executed.

[0021] Time judgment: If the rotation time of the LED information screen this time... Greater than or equal to the rated locking time If so, the locking step will be executed.

[0022] Optionally, a state judgment step is further provided between the wind force detection step and the wind force judgment step I;

[0023] Status determination: Determine the current status of the LED information screen. If the LED information screen is currently locked, proceed to wind force determination step I; if the LED information screen is currently freely rotating, proceed to wind force determination step II.

[0024] Wind Force Judgment II: Within a certain time period, based on the wind direction, wind force, and the area of ​​the LED information screen, calculate the magnitude of the wind force experienced by the LED information screen at its initial position. ,like If so, then execute the reset step I;

[0025] Reset I: Drive the LED information screen to rotate to the initial position, and then perform the locking step.

[0026] By adopting the above technical solution, when the environment of the LED meets the reset conditions, the LED information can be reset to the initial position, so that the LED information screen can provide better effective viewing conditions and thus maintain the display effect for a longer period of time.

[0027] Optionally, a rotation amplitude judgment step I is further provided between the wind force judgment II and the reset I;

[0028] Rotation Amplitude Judgment I: Determine whether the angle β between the current position and the initial position of the LED information screen is greater than 90°. If the angle β between the current position and the initial position of the LED information screen is greater than 90°, then execute the reset safety judgment I step.

[0029] Reset Safety Judgment I: Calculate the maximum wind force experienced by the LED information screen during its rotation to the initial position. ,like If so, then the reset step I will be executed.

[0030] By adopting the above technical solution, the possibility of LED information screen failing to reset during the reset process is reduced, the possibility of LED information screen failing to reset is reduced, and the reliability of reset is improved.

[0031] Optionally, a third step of wind force determination is provided after the second step of wind force determination.

[0032] In the wind force determination step II, if If so, proceed with wind force determination step III and reset step II;

[0033] Wind Force Judgment III: Within a certain time period, based on the wind direction, wind force, and the area of ​​the LED information screen, calculate the magnitude of the wind force experienced by the LED information screen at position α. ,like Then execute reset step II;

[0034] Reset II: Drive the LED information screen to the maximum visible position, and then perform the locking procedure.

[0035] By adopting the above technical solution, the LED information screen can be reset to a position within the viewing angle range, enabling the LED information screen to be reset when reset conditions permit, thereby providing timely and effective display effects and improving the reliability of reset.

[0036] Optionally, a rotation amplitude judgment step II is further provided between the wind force judgment III and the reset II;

[0037] Rotation Amplitude Judgment II: Determine whether the angle γ between the current position of the LED information screen and the maximum visible position is greater than 90°. If the angle γ between the current position of the LED information screen and the maximum visible position is greater than 90°, then execute the reset safety judgment II step.

[0038] Reset Safety Assessment II: Calculate the maximum wind force experienced by the LED information screen during its rotation to the maximum visible position. ,like If so, then execute the reset step II.

[0039] Optionally, in the reset safety judgment step I, if If so, proceed with step III of the wind force determination process.

[0040] Optionally, the state determination step is further followed by a power-on step and a power-off step.

[0041] In the state determination step, if the LED information screen is currently in a locked state, the power-on step is also executed.

[0042] If the LED information screen is currently in a free-rotating state, the power-off step will also be performed;

[0043] Power on: Power on the LED information screen;

[0044] Power off: Power off the LED information screen.

[0045] By adopting the above technical solution, the LED information screen can be powered on and maintain its display effect when it is within the viewing angle range, and the power can be cut off when it is outside the viewing angle range, thereby reducing power consumption and saving unnecessary power waste.

[0046] Secondly, the present invention provides an LED information screen display device, which adopts the following technical solution:

[0047] An LED information screen display device includes a resistance mechanism, a detection mechanism, an LED information screen, a connecting carrier, a drive motor, a sleeve, and a central processing unit. The sleeve is rotatably mounted on the connecting carrier, and the LED information screen is mounted on the sleeve. The detection mechanism includes an angle sensor and an environmental sensor. The environmental sensor is mounted on the connecting carrier, and the angle sensor is positioned between the connecting carrier and the sleeve. The resistance mechanism includes an electric push rod, an elastic element, and a friction block. The friction block is slidably mounted on the connecting carrier. One end of the elastic element is connected to the electric push rod, and the other end is connected to the friction block. The friction block abuts against the sleeve under the elastic force of the elastic element. The electric push rod is used to change the elastic potential energy of the elastic element. The central processing unit is mounted on the connecting carrier, and the fixed end of the drive motor is mounted on the connecting carrier. The drive end of the drive motor is connected to the sleeve via a transmission connection. The drive motor, angle sensor, environmental sensor, electric push rod, and LED information screen are electrically connected to the central processing unit.

[0048] By adopting the above technical solution, the electric actuator drives the elastic element to increase or decrease its elastic potential energy, thereby adjusting the friction between the friction block and the sleeve. The resistance mechanism first applies a first rotational resistance to the sleeve. To reduce the probability of the LED information screen being blown away by normal wind, and to maintain the display effect of the LED information screen, the central processing unit calculates the appropriate parameters based on the environment in which the LED information screen is located. When the wind exerts force on the LED information screen Greater than the maximum wind force that can be withstood At that time, the resistance mechanism applies a second rotational resistance to the sleeve. This causes the LED information screen to rotate relative to the connecting carrier. The current angle of the LED information screen is obtained through an angle sensor. When the angle between the LED information screen and the initial position is α, or after a set time is reached, the first rotational resistance is applied to the sleeve again through the resistance mechanism. This ensures the LED information screen maintains an effective viewing angle and preserves its display effect; however, if the wind continues to increase and exceeds the maximum wind force the LED information screen can withstand at its current location... The resistance mechanism applies a second rotational resistance to the sleeve. This allows the LED information screen to rotate freely, reducing the possibility of damage. When the LED information screen is located outside the α range, i.e. outside the viewing angle range, the LED information screen is powered off, saving power consumption.

[0049] When reset conditions permit, the drive motor rotates the end sleeve, restoring the LED information screen to its viewing angle and restoring the display effect. This saves on manual reset steps and reduces labor costs. The central processing unit calculates the maximum force the LED information screen may experience during reset. or This analysis further examines the reliability of LED information screen reset, reducing the possibility of invalid resets.

[0050] Thirdly, the present invention provides an LED information screen display system, which adopts the following technical solution:

[0051] An LED information screen display system includes a control terminal and multiple LED information screen display devices as described in the second aspect, wherein the control terminal is electrically connected to a central processing unit.

[0052] By adopting the above technical solution, within a certain period of time, when the wind force in the environment where any LED information screen that is in a power outage has not returned to normal or when a new LED information screen is added to the power outage, the control terminal can control all LED information screens in this area not to reset, reducing the possibility of invalid reset; the control terminal can display the location of the power outage LED information screen, which is convenient for maintenance.

[0053] In summary, the present invention has at least one of the following beneficial technical effects:

[0054] By using LED information screen display methods, the LED information screen can be kept within the visible angle range when the wind is safe, and rotated when the wind is threatening. While maintaining the display effect of the LED information screen as much as possible, it can also provide protection for the LED information screen and reduce the possibility of damage.

[0055] By incorporating a reset step into the display method, the LED information screen can be reset to a position within the viewing angle range. This allows the LED information screen to be reset as much as possible when reset conditions permit, thereby providing timely and effective display effects and improving the reliability of the reset.

[0056] By setting power-on and power-off steps, the LED information screen can be powered on and maintain its display effect when it is within the viewing angle range, and powered off when it is outside the viewing angle range, thus reducing power consumption and saving unnecessary power waste.

[0057] By setting up a display system, all LED information screens in this area can be prevented from resetting via a control terminal, reducing the possibility of invalid resets; the control terminal can display the location of the LED information screens when power is off, facilitating maintenance. Attached Figure Description

[0058] Figure 1 This is a flowchart illustrating the LED information screen display method according to Embodiment 1 of the present invention;

[0059] Figure 2 yes Figure 1 Flowchart for determining moderate wind force (I);

[0060] Figure 3 yes Figure 1 Flowchart for Stroke Force Assessment II;

[0061] Figure 4 This is a schematic diagram of the overall structure of Embodiment 2 of the present invention;

[0062] Figure 5 This is a cross-sectional schematic diagram of the resistance mechanism in Embodiment 2 of the present invention;

[0063] Figure 6 This is a schematic diagram of the overall structure of Embodiment 3 of the present invention.

[0064] Explanation of reference numerals in the attached drawings: 100, resistance mechanism; 101, electric actuator; 102, elastic element; 103, friction block; 200, detection mechanism; 201, environmental sensor; 202, angle sensor; 310, central processing unit; 320, control terminal; 330, drive motor; 340, LED information screen; 350, connecting carrier; 360, fixing rod; 370, sleeve; 380, gear; 390, gear ring. Detailed Implementation

[0065] The following combination Figures 1 to 6 The present invention will be described in further detail below.

[0066] This invention discloses an LED information screen display method, device, and system.

[0067] Example 1: Refer to Figures 1 to 3 This invention discloses a method for displaying information on an LED screen, comprising the following steps:

[0068] S1: Wind Detection: Real-time detection of the wind force affecting the LED information screen. And to detect wind direction.

[0069] S2: Status Judgment: Determine the current status of the LED information screen. If the LED information screen is currently locked, it proves that the angle of the current position of the LED information screen is within the range of α. At this time, execute the wind force judgment I step S5 and the power-on step S3. If the LED information screen is currently in a free rotation state, execute the wind force judgment II step S13 and the power-off step S4.

[0070] S3: Power On: Power on the LED information screen.

[0071] S4: Power off: Power off the LED information screen.

[0072] S5: Wind Force Judgment I: Determine the magnitude of the wind force affecting the LED information screen. Is it greater than the maximum wind force that the LED information screen can withstand? If the wind force on the LED information screen is large The wind force is greater than the maximum that the LED information screen can withstand. If the wind force is too strong, it proves that the LED information screen is at risk of being damaged if it is not rotated in time. At this time, the current angle judgment step S6 is executed. Otherwise, it proves that the LED information screen can withstand the current wind force. At this time, the locking step S10 is executed.

[0073] S6: Current Angle Judgment: Determine the angle β between the current position and the initial position of the LED information screen. If the angle β between the current position and the initial position of the LED information screen is less than α, execute the initial rotation step S7. If the angle β between the current position and the initial position of the LED information screen is equal to α, execute the rotation trend judgment step S11. α is the angle between the initial position and the maximum visible position of the LED information screen.

[0074] S7: Initial Rotation: Reducing the rotational resistance between the LED information screen and the connecting carrier Adjusted to , This allows the LED information screen to rotate relative to the connecting carrier under the action of wind.

[0075] S8: Angle judgment after rotation: whether the angle β between the current position and the initial position of the LED information screen reaches α. If the angle β between the current position and the initial position of the LED information screen reaches α, then execute the locking step S10. If the angle between the current position and the initial position of the LED information screen does not reach α, then execute the time judgment step S9.

[0076] S9: Time Judgment: If the rotation time of the LED information screen this time is... Greater than or equal to the rated locking time If so, then the locking step S10 is executed.

[0077] S10: Locking: Set the rotational resistance between the LED information screen and the connecting carrier to [value]. Rotational resistance This allows the LED information screen to remain in its current position under normal wind conditions, at which point the LED information screen is in a locked state.

[0078] After the current angle judgment step S6, if the angle β between the current position and the initial position of the LED information screen is less than α, it proves that the LED information screen still needs to continue displaying information. At this time, the initial rotation step S7 is executed, so that the LED information screen can rotate relative to the connecting carrier under the action of wind. Then, the rotation angle judgment step S8 is executed to determine whether the angle β between the current position and the initial position of the LED information screen reaches α. If the angle β between the current position and the initial position of the LED information screen reaches α, the LED information screen is directly locked. If the angle between the current position and the initial position of the LED information screen does not reach α, the time judgment step S9 is executed. If the rotation time of this rotation of the LED information screen is... Greater than or equal to the rated locking time At the same time, the LED information screen is also locked to ensure that the angle of the LED information screen is always within the α range, thereby ensuring that the LED information screen is always powered on and can maintain its display function.

[0079] S11: Rotation Trend Judgment: Determine whether the angle β between the current position and the initial position of the LED information screen has an increasing trend. If the angle β between the current position and the initial position of the LED information screen has an increasing trend, it proves that the angle between the current position and the initial position of the LED information screen is about to be greater than α, and the LED information screen is no longer suitable for information display. Therefore, execute the free rotation step S12. Otherwise, it proves that the angle between the current position and the initial position of the LED information screen will still be less than α. At this time, execute the preliminary rotation step S7.

[0080] S12: Free Rotation: Reducing the rotational resistance between the LED information screen and the connecting carrier. Adjusted to , This allows the LED information screen to rotate relative to the connecting carrier under the action of wind.

[0081] After step S11, if the angle between the current position and the initial position of the LED information screen is about to exceed α, it proves that the LED information screen is no longer suitable for information display. At this time, the primary goal is to protect the LED information screen from wind damage. Therefore, the rotational resistance between the LED information screen and the connecting carrier is reduced. Adjusted to This allows the LED information screen to rotate relative to its connecting carrier under wind force, reducing the probability of the LED information screen being destroyed by wind, and also reducing the rotational resistance between the LED information screen and the connecting carrier. Adjusted to This can reduce the stress on the LED information screen and extend its service life. If the angle β between the current position and the initial position of the LED information screen is still less than α, it proves that the LED information screen can be used to display information. After the initial rotation step S7, the angle judgment step S8 after rotation, the time judgment step S9, and the locking step S10, the LED information screen is locked, so that the LED information screen can display information to the maximum extent.

[0082] S13: Wind Force Judgment II: Within a certain time period (e.g., two hours; the specific time can be determined based on the environment of the LED information screen or different wind conditions, after reasonable analysis), the magnitude of the wind force experienced by the LED information screen at its initial position is calculated based on the wind direction, wind force, and the area of ​​the LED information screen. ,like That is, the initial position meets the reset condition of the LED information screen, and then the rotation amplitude is used to determine step S14. If If the wind force at the initial position does not meet the conditions for the LED information screen to reset, it proves that resetting to the initial position is unsafe, and then the wind force judgment III step S17 is executed.

[0083] S14: Rotation Amplitude Judgment I: Determine whether the angle β between the current position and the initial position of the LED information screen is greater than 90°. Judge the range of rotation angles required for the LED information screen to be reset. If the angle β between the current position and the initial position of the LED information screen is less than 90°, it proves that the maximum wind force experienced by the LED information screen during the reset process is at the initial position, indicating that the reset process is safe. At this time, execute Reset I step S16. If the angle β between the current position and the initial position of the LED information screen is greater than 90°, it proves that the location of the maximum wind force experienced by the LED information screen during the reset process is temporarily unclear, indicating that whether the wind force during the reset process is safe is unknown. It is necessary to execute Reset Safety Judgment I step S15 for re-judgment.

[0084] S15: Reset Safety Judgment I: Calculate the maximum wind force experienced by the LED information screen during its rotation to the initial position. That is, calculating the wind force experienced by the LED information screen when it is perpendicular to the wind direction. ,like This proves that during the process of resetting to the initial position, the wind force at the point where the LED information screen experiences the greatest wind force is less than... This proves that resetting the LED information screen at this time is safe. At this point, execute reset step S16. If... This proves that during the process of resetting to the initial position, the maximum wind force experienced by the LED information screen is greater than... The safety of the process of resetting to the initial position is unknown. At this time, the wind force judgment III step S17 is executed.

[0085] S16: Reset I: Drive the LED information screen to rotate to the initial position, then execute the locking step S10 and the power-on step S3 to ensure that the LED information screen can display the effect in the initial position.

[0086] S17: Wind Force Judgment III: Within a certain time period, based on the wind direction, wind force, and the area of ​​the LED information screen, calculate the magnitude of the wind force experienced by the LED information screen at position α. ,like This proves that the LED information screen is safe from wind force at its maximum visible position. At this point, step S18 (rotation amplitude judgment II) is executed. If... This proves that the wind force on the LED information screen at its maximum visible position is unsafe. At this point, the free rotation step S12 is continued to reduce the possibility of damage to the LED information screen.

[0087] S18: Rotation Amplitude Judgment II: Determine whether the angle γ between the current position of the LED information screen and the maximum visible position is greater than 90°. If the angle γ between the current position of the LED information screen and the maximum visible position is less than 90°, it proves that the maximum wind force experienced by the LED information screen during the reset process is the maximum visible position, indicating that the reset process is safe. At this time, execute Reset II step S20. If the angle γ between the current position of the LED information screen and the maximum visible position is greater than 90°, it proves that the maximum wind force experienced by the LED information screen during the reset process is the maximum visible position, indicating that the safety of the reset process is unknown. At this time, execute Reset Safety Judgment II step S19.

[0088] S19: Reset Safety Judgment II: Calculate the maximum wind force experienced by the LED information screen during its rotation to the maximum visible position. That is, calculating the wind force experienced by the LED information screen when it is perpendicular to the wind direction. ,like This proves that during the process of resetting to the maximum visible position, the wind force at the point where the LED information screen experiences the greatest wind force is less than... This proves that resetting the LED information screen at this time is safe. At this point, execute reset step S20 (Reset II). This proves that during the process of resetting to the maximum visible position, the wind force at the point where the LED information screen experiences the greatest wind force is greater than that at the point where the wind force is greatest. This proves that resetting the LED information screen at this point is unsafe. Therefore, the free rotation step S12 should be performed to reduce the possibility of damage to the LED information screen.

[0089] S20: Reset II: Drive the LED information screen to rotate to the maximum visible position, then execute the locking step S10 and the power-on step S3 to power on the LED information screen, so as to ensure that the LED information screen can display the effect at the maximum visible position.

[0090] The implementation principle of an embodiment of the LED information screen display method of the present invention is as follows:

[0091] The actual wind force experienced by the LED information screen can be calculated using Bernoulli's equation. =V*V*S / 1600, where V is the wind speed perpendicular to the LED information screen, S is the area of ​​the LED information screen, and S is the maximum wind force that the LED information screen can withstand. By comparing the two systems, the goal is to keep the LED information screen within a visible angle when the wind is safe, and to rotate the LED information screen when the wind is threatening. This approach aims to protect the LED information screen while maintaining its display effect as much as possible, thus reducing the possibility of damage.

[0092] When the environment of the LED meets the reset conditions, the LED information is reset to the initial position, so that the LED information screen can provide better effective viewing conditions, and thus the LED information screen can maintain the display effect for a longer period of time.

[0093] This reduces the possibility of LED information screens failing to reset or resetting ineffectively during the reset process, improves the reliability of reset, and further enables the LED information screen to be reset to a position within the viewing angle range, allowing the LED information screen to be reset when reset conditions permit, thereby providing timely and effective display effects.

[0094] When the LED information screen is within the viewing angle range, it can be powered on to maintain the display effect. When the LED information screen is outside the viewing angle range, it can be powered off to reduce power consumption and save unnecessary power waste.

[0095] Example 2: This embodiment of the invention discloses an LED information screen display device. (Refer to...) Figure 4 and Figure 5 An LED information screen display device includes a resistance mechanism 100, a detection mechanism 200, an LED information screen 340, a connecting carrier 350, a sleeve 370, a drive motor 330, and a central processing unit 310. The fixed end of the drive motor 330 is fixedly installed in the connecting carrier 350 by bolts. A gear 380 is installed on the drive end of the drive motor 330. A transmission groove is opened in the sleeve 370, and a gear ring 390 is installed in the transmission groove of the sleeve 370. The gear 380 and the gear ring 390 mesh to realize the transmission connection between the drive motor 330 and the sleeve 370. The sleeve 370 is rotatably mounted on the connecting carrier 350 by bearings. The LED information screen 340 is fixedly mounted on the sleeve 370 by a fixing rod 360. The detection mechanism 200 includes an angle sensor 202 and an environmental sensor. 201. An environmental sensor 201 is mounted on a connecting carrier 350. An angle sensor 202 is mounted between the connecting carrier 350 and a sleeve 370. The resistance mechanism 100 includes an electric push rod 101, an elastic element 102, and a friction block 103. The friction block 103 is slidably mounted on the connecting carrier 350. One end of the elastic element 102 is connected to the electric push rod 101, and the other end is connected to the friction block 103. The friction block 103 abuts against the sleeve 370 under the elastic force of the elastic element 102. The electric push rod 101 is used to change the elastic potential energy of the elastic element 102. A central processing unit 310 is mounted on the connecting carrier 350. The drive motor 330, angle sensor 202, environmental sensor 201, electric push rod 101, and LED information screen 340 are electrically connected to the central processing unit 310.

[0096] The implementation principle of an LED information screen display device according to an embodiment of the present invention is as follows:

[0097] The extension and retraction of the output rod of the electric actuator 101 drives the elastic element 102 to increase or decrease its elastic potential energy, thereby adjusting the friction between the friction block 103 and the sleeve 370. The elastic element 102 can be a spring, sheet, coil spring, or other component with elastic potential energy.

[0098] When the resistance mechanism 100 applies the first rotational resistance to the sleeve 370, the electric push rod 101 extends to adjust the elastic potential energy of the elastic element 102, thereby adjusting the friction between the friction block 103 and the sleeve 370 to the first rotational resistance, so that the LED information screen 340 can be locked.

[0099] When the resistance mechanism 100 applies a second rotational resistance to the sleeve 370, the electric push rod 101 contracts, reducing the elastic potential energy of the elastic element 102. This adjusts the friction between the friction block 103 and the sleeve 370 to the second rotational resistance, enabling the LED information screen 340 to achieve initial rotation or free rotation. Applying the second rotational resistance to the sleeve 370 through the friction block 103 ensures that the speed of the LED information screen 340 is more stable during rotation, reducing the occurrence of large speed fluctuations and contributing to the accuracy of the angle sensor 202 measurement.

[0100] The angle sensor 202 obtains the current angle of the LED information screen 340. When the angle between the LED information screen 340 and the initial position is less than α, that is, the LED information screen 340 is currently in a locked state, the central processing unit 310 receives the signal from the angle sensor 202 and powers on the LED information screen 340 to maintain the display effect; when the angle between the LED information screen 340 and the initial position is greater than α, that is, the LED information screen 340 is currently in a free rotation state, the LED information screen 340 is powered off, saving power consumption.

[0101] When the sleeve 370 needs to rotate actively, the drive motor 330 drives the sleeve 370 to rotate, so that the LED information screen 340 returns to the position range of the viewing angle, thereby restoring the display effect. This saves the manual reset step and reduces the labor input cost. The central processing unit 310 calculates the maximum wind force that the LED information screen 340 may be subjected to during the reset process, and then analyzes the reliability of the reset of the LED information screen 340, reducing the possibility of invalid reset.

[0102] The LED information screen 340 is monitored by angle sensor 202 and environmental sensor 201. The monitored data is sent to central processing unit 310. Based on the acquired environmental information, such as wind speed, wind direction, current angle of LED information screen 340 and area of ​​LED information screen 340, central processing unit 310 determines whether it is necessary to switch the rotational resistance applied by resistance mechanism 100. Then, it controls drive motor 330 to drive sleeve 370 to rotate when the reset condition is met, thereby realizing automatic adjustment of the display angle of LED information screen 340.

[0103] Example 3: This embodiment of the invention discloses an LED information screen display system. (Refer to...) Figure 6 An LED information screen display system includes a control terminal 320 and multiple LED information screen display devices as shown in Embodiment 2. The control terminal 320 is electrically connected to a central processing unit 310.

[0104] The implementation principle of an LED information screen display system according to an embodiment of the present invention is as follows:

[0105] Within a certain timeframe, if the wind force in the environment surrounding any LED information screen 340 that is currently experiencing a power outage does not return to normal, or if a new LED information screen 340 experiences a power outage, the control terminal 320 controls all LED information screens 340 in that area to prevent them from resetting, thus reducing the possibility of invalid resets. The control terminal 320 can also display the location of the power-out LED information screens 340 for easy maintenance. The above are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made to the structure, shape, and principle of the present invention should be included within the scope of protection of the present invention.

Claims

1. A method for displaying information on an LED screen, characterized in that: Includes the following steps: Wind force detection: Real-time monitoring of the wind force affecting the LED information screen. And to detect wind direction; Status determination: Determine the current status of the LED information screen. If the LED information screen is currently locked, then execute the wind force determination step I. Wind Force Assessment I: Determining the magnitude of the wind force affecting the LED information screen. Is it greater than the maximum wind force that the LED information screen can withstand? If the wind force on the LED information screen is large The wind force is greater than the maximum that the LED information screen can withstand. If the current angle is determined, the current angle judgment step is executed; otherwise, the locking step is executed. Current Angle Judgment: Determine the angle β between the current position and the initial position of the LED information screen. If the angle β between the current position and the initial position is less than α, execute the initial rotation step. If the angle β between the current position and the initial position is equal to α, execute the rotation trend judgment step. α is the angle between the initial position and the maximum visible position of the LED information screen. Initial rotation: Increasing the rotational resistance between the LED information screen and the connecting carrier. Adjusted to , This allows the LED information screen to rotate relative to the connecting carrier under wind force; Angle judgment after rotation: whether the angle β between the current position and the initial position of the LED information screen reaches α. If the angle β between the current position and the initial position of the LED information screen reaches α, then the locking step is executed. Locking: Set the rotational resistance between the LED information screen and the connecting carrier to [value]. Rotational resistance This allows the LED information screen to remain in its current position under normal wind conditions, at which point the LED information screen is in a locked state. Rotation trend judgment: Determine whether the angle β between the current position and the initial position of the LED information screen has an increasing trend. If the angle β between the current position and the initial position of the LED information screen has an increasing trend, then execute the free rotation step; otherwise, it proves that the angle between the current position and the initial position of the LED information screen will still be less than α, and then execute the preliminary rotation step. Free rotation: reducing rotational resistance between the LED information screen and the connecting carrier. Adjusted to , This allows the LED information screen to rotate relative to the connecting carrier under the action of wind, at which point the LED information screen is in a free rotation state.

2. The LED information screen display method according to claim 1, characterized in that: The step of determining the angle after rotation also includes a step of determining the time. In the angle determination step after rotation, if the angle between the current position and the initial position of the LED information screen does not reach α, then the time determination step is executed. Time judgment: If the rotation time of the LED information screen this time... Greater than or equal to the rated locking time If so, the locking step will be executed.

3. The LED information screen display method according to claim 1, characterized in that: In the state determination step, if the LED information screen is currently in a free rotation state, then the wind force determination step II is executed; Wind Force Judgment II: Within a certain time period, based on the wind direction, wind force, and the area of ​​the LED information screen, calculate the magnitude of the wind force experienced by the LED information screen at its initial position. ,like If so, then execute the reset step I; Reset I: Drive the LED information screen to rotate to the initial position, and then perform the locking step.

4. The LED information screen display method according to claim 3, characterized in that: Between the wind force judgment II and the reset I, a rotation amplitude judgment I step is also provided; Rotation Amplitude Judgment I: Determine whether the angle β between the current position and the initial position of the LED information screen is greater than 90°. If the angle β between the current position and the initial position of the LED information screen is greater than 90°, then execute the reset safety judgment I step. Reset Safety Judgment I: Calculate the maximum wind force experienced by the LED information screen during its rotation to the initial position. ,like If so, then the reset step I will be executed.

5. The LED information screen display method according to claim 4, characterized in that: A third step for wind force determination is also included after the second step of wind force determination. In the wind force determination step II, if If so, proceed with wind force determination step III and reset step II; Wind Force Judgment III: Within a certain time period, based on the wind direction, wind force, and the area of ​​the LED information screen, calculate the magnitude of the wind force experienced by the LED information screen at position α. ,like Then execute reset step II; Reset II: Drive the LED information screen to the maximum visible position, and then perform the locking procedure.

6. The LED information screen display method according to claim 5, characterized in that: Between the wind force determination III and the reset II, a rotation amplitude determination II step is also provided; Rotation Amplitude Judgment II: Determine whether the angle γ between the current position of the LED information screen and the maximum visible position is greater than 90°. If the angle γ between the current position of the LED information screen and the maximum visible position is greater than 90°, then execute the reset safety judgment II step. Reset Safety Assessment II: Calculate the maximum wind force experienced by the LED information screen during its rotation to the maximum visible position. ,like If so, then execute the reset step II.

7. The LED information screen display method according to claim 5, characterized in that: In the reset safety judgment step I, if If so, proceed with step III of the wind force determination process.

8. The LED information screen display method according to claim 3, characterized in that: The status determination step is followed by a power-on step and a power-off step. In the state determination step, if the LED information screen is currently in a locked state, the power-on step is also executed. If the LED information screen is currently in a free-rotating state, the power-off step will also be performed; Power on: Power on the LED information screen; Power off: Power off the LED information screen.

9. An LED information screen display device utilizing the LED information screen display method according to any one of claims 1-8, characterized in that: The system includes a resistance mechanism (100), a detection mechanism (200), an LED information screen (340), a connecting carrier (350), a drive motor (330), a sleeve (370), and a central processing unit (310). The sleeve (370) is rotatably mounted on the connecting carrier (350), and the LED information screen (340) is mounted on the sleeve (370). The detection mechanism (200) includes an angle sensor (202) and an environmental sensor (201). The environmental sensor (201) is mounted on the connecting carrier (350), and the angle sensor (202) is mounted between the connecting carrier (350) and the sleeve (370). The resistance mechanism (100) includes an electric push rod (101), an elastic element (102), and a friction block (103). The friction block (103) is slidably mounted on the connecting carrier (350). On the connecting carrier (350), one end of the elastic element (102) is connected to the electric push rod (101), and the other end is connected to the friction block (103). The friction block (103) abuts against the sleeve (370) under the elastic force of the elastic element (102). The electric push rod (101) is used to change the elastic potential energy of the elastic element (102). The central processing unit (310) is set on the connecting carrier (350). The fixed end of the drive motor (330) is set on the connecting carrier (350). The drive end of the drive motor (330) is connected to the sleeve (370) for transmission. The drive motor (330), angle sensor (202), environmental sensor (201), electric push rod (101), and LED information screen (340) are electrically connected to the central processing unit (310).

10. An LED information screen display system, characterized in that: It includes a control terminal (320) and multiple LED information screen display devices as described in claim 9, wherein the control terminal (320) is electrically connected to a central processing unit (310).

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