A display motorized adjustment system and a display having the same

Abstract

The utility model belongs to mechatronics technical field provides a kind of display electric adjusting system and the display with it, system includes electric push rod, drive module, adjusting module, position detection module, position memory module and button module, adjusting module can drive electric push rod by drive module to adjust the position of display from multiple directions, and electric push rod can be accurately adjusted to the specified position recorded by position detection module and position memory module.The scheme provided by the utility model enables user to realize all-round accurate adjustment of display screen by only pressing button, greatly improves the adjustment efficiency, user can automatically and accurately restore display to pre-set position by memory button, solves the pain point that repeated adjustment is not easy to reach, ensures the comfort and consistency during display use, provides safe, convenient and intelligent human-computer interaction experience, and is suitable for high-end office, design, medical treatment and education and other various scenes.

Description

Technical Field

[0001] This utility model belongs to the field of mechatronics technology, specifically relating to an electric adjustment system for a display and a display having the same. Background Technology

[0002] With the development of information technology, monitors have become core equipment in many fields such as office, design, medical and education. Users have increasingly higher requirements for the user experience of monitors, not only needing clear picture quality, but also pursuing comfortable and healthy viewing posture.

[0003] Currently, monitor adjustment methods on the market are mainly divided into two categories: manual adjustment and electric adjustment. Traditional manual adjustment is usually achieved through mechanical springs, gas springs, or knobs. Although the structure is simple, it is laborious to operate when making multi-directional and wide-range adjustments, and it is difficult to achieve fine and precise positioning. Users need to make repeated manual adjustments in different usage scenarios such as standing office, seated meeting, and screen sharing. The process is cumbersome, inefficient, and it is difficult to accurately restore to a more comfortable position, resulting in a poor user experience. Although some high-end products have introduced electric adjustment solutions, the electric adjustment system has relatively simple functions. Most of them can only achieve horizontal movement in the horizontal direction or electric lifting in the vertical direction, and the level of intelligence is seriously insufficient. Utility Model Content

[0004] To overcome the shortcomings of the prior art, this utility model proposes a display electric adjustment system, comprising: The electric linear actuator includes a vertical adjustment linear actuator, a horizontal adjustment linear actuator, and an angle adjustment linear actuator, each of which is connected to a display. The drive module drives each of the electric push rods and is used to respond to the adjustment signal to drive the electric push rods accordingly. An adjustment module, which is signal-connected to the drive module, is used to respond to button signals and send corresponding adjustment signals. A position detection module, which is signal-connected to the adjustment module, is used to detect the real-time position information of the electric push rod and send it to the adjustment module; A position memory module is signal-connected to the adjustment module and is used to obtain and store the real-time position information of the electric push rod as memory position information through the adjustment module. A button module is signal-connected to the adjustment module. The button module includes a memory button and several adjustment buttons, used to send button signals to the adjustment module so that the adjustment module directly sends an adjustment signal to the drive module to adjust the electric actuator, or to enable the adjustment module to obtain the real-time position information of the position detection module and the memory position information of the position memory module and send an adjustment signal to the drive module to adjust the electric actuator to the position corresponding to the memory position information.

[0005] Specifically, the drive module includes three drive units for driving the vertical adjustment push rod, the horizontal adjustment push rod and the angle adjustment push rod respectively. Each drive unit includes a drive motor, a drive circuit, a bootstrap circuit, multiple discharge diodes, multiple drive resistors and two decoupling capacitors. The driving circuit is connected to the driving motor and includes two MOS transistor driving chips and four MOS transistors. The two MOS transistor driving chips are respectively connected to two different MOS transistors and are used to drive the driving motor to rotate forward, reverse, or stop. The bootstrap circuit is connected to each of the MOS transistor driver chips and is used to provide a driving voltage to each of the MOS transistor driver chips, thereby driving one of the MOS transistors connected to the MOS transistor driver chip. Each of the discharge diodes is used to provide a fast discharge channel when the MOSFET is turned off, and each of the drive resistors is used to provide a fast turn-on signal for the MOSFET or to provide a residual voltage discharge channel when the MOSFET is turned off. The decoupling capacitors are respectively connected to the bootstrap circuit and one of the MOSFET driver chips.

[0006] Specifically, the position detection module includes a pull-up resistor, a first detection resistor, a second detection resistor, a detection capacitor, a detection transistor, and a Hall sensor; One end of the pull-up resistor is connected to the regulating module and the collector of the detection transistor to receive the position detection signal, and the other end is connected to the third pin of the Hall sensor. The second pin of the Hall sensor is connected to one end of the second detection resistor, one end of the detection capacitor and the base of the detection transistor through the first detection resistor. The first pin of the Hall sensor, the other end of the second detection resistor, the other end of the detection capacitor and the emitter of the detection transistor are respectively grounded. The position memory module includes a diode, two voltage divider resistors, a storage capacitor, and a filter capacitor; The negative terminal of the diode is connected to the system power supply and the energy storage capacitor, respectively. The positive terminal of the diode is connected to the input power supply and is connected to another voltage divider resistor, a filter capacitor and the adjustment module through a voltage divider resistor. It is used to receive the power detection signal sent by the adjustment module. When the system determines that the input power supply is cut off based on the power detection signal, it stores the memory position information through the energy storage of the energy storage capacitor.

[0007] Furthermore, the button module includes multiple touch buttons and a touch sensing chip connected to each of the touch buttons, and the output terminal of the touch sensing chip is connected to the adjustment module; The system also includes a display module, comprising a digital tube driver chip and digital tube elements connected to each other. The digital tube driver chip is connected to the adjustment module and is used to display the display data transmitted by the adjustment module through the digital tube elements.

[0008] Preferably, the system further includes: The current detection module includes a detection chip, a decoupling capacitor, and three sets of filter channels. Each set of filter channels is connected to a different driving unit. A detection resistor is connected in parallel in any set of filter channels. The detection chip is connected to each set of filter channels and is used to collect the driving status of each driving unit and generate an electrical detection signal that is transmitted to the adjustment module accordingly. The attitude detection module includes an attitude sensing chip connected to the adjustment module and two filter capacitors connected to the attitude sensing chip. The attitude sensing chip is used to detect the motion trajectory of the electric push rod in various directions and generate attitude detection signals that are transmitted to the adjustment module accordingly. The anti-pinch detection module includes an anti-pinch sensor, three resistors, and a transistor. The collector of the transistor is connected to the second pin of the anti-pinch sensor through one of the resistors. The base of the transistor is connected to the other two resistors and is connected to the first pin of the anti-pinch sensor through one of the resistors. The emitter of the transistor is grounded. The adjustment module is connected to the collector of the transistor to receive the anti-pinch detection signal.

[0009] Furthermore, the system also includes: The sound prompt module includes two driving resistors, a driving transistor, and a sound element. The base of the driving transistor is connected to the two driving resistors, the collector of the driving transistor is connected to the sound element, and the emitter of the driving transistor is grounded. The adjustment module is connected to a driving resistor so that the driving transistor is turned on and the sound element produces sound by the adjustment signal sent by the adjustment module based on the button signal, the electrical detection signal, the posture detection signal and / or the anti-pinch detection signal.

[0010] Preferably, the system further includes: A signal isolation module is provided, which is connected to the adjustment module and the drive module respectively. The signal isolation module includes a signal isolation chip connected to the adjustment module and the drive module and two filter capacitors connected to the signal isolation chip. The signal isolation chip is used to receive the input signal of the adjustment module, perform internal isolation processing, and then convert it into an output signal to be output to the drive module.

[0011] Preferably, the system further includes: The communication module includes a signal conversion chip, an anti-interference matching circuit, and a protection circuit. The transmitting end, receiving end, and enabling end of the signal conversion chip are connected to the adjustment module. The signal conversion chip is connected to a first signal line and a second signal line and is sequentially connected to the anti-interference matching circuit and the protection circuit, and is used to convert TTL signals and communication signals. A first pull-up / pull-down resistor is connected to the first signal line, a second pull-up / pull-down resistor is connected to the second signal line, and a decoupling filter capacitor is also connected to the power supply terminal of the signal conversion chip. The decoupling filter capacitor and the other end of the first pull-up / pull-down resistor are grounded together. The anti-interference matching circuit includes a terminating matching resistor that is connected to the first pull-up / pull-down resistor and the second pull-up / pull-down resistor respectively, a first anti-interference resistor that is connected to the first pull-up / pull-down resistor and the terminating matching resistor respectively, and a second anti-interference resistor that is connected to the second pull-up / pull-down resistor and the terminating matching resistor respectively. The protection circuit includes a first anti-interference resistor, a second anti-interference resistor, and three bidirectional TVS diodes connected to the first and second anti-interference resistors respectively, as well as a first fuse connected to the first anti-interference resistor and a second fuse connected to the second anti-interference resistor.

[0012] This utility model also proposes a display, which includes the display electric adjustment system as described above.

[0013] This utility model has at least the following beneficial effects: The solution proposed in this utility model allows users to easily adjust the monitor in multiple directions such as vertical, horizontal, and angle using only the button module, without having to perform manual adjustments. This enables comprehensive and precise control over the monitor's spatial position, meeting the needs of scenarios with stringent requirements for screen position, from ordinary office work to professional design and medical surgery. Furthermore, the solution provides memory and one-key recovery functions, allowing users to store specific position information and precisely restore the monitor to the preset position when needed, completely solving the pain point of repeated adjustments being difficult to achieve in the traditional method. Furthermore, the proposed solution can use three independent drive units to control three push rods respectively, realizing independent parallel control of multiple degrees of freedom and avoiding mutual interference. The Hall sensor realizes non-contact detection of motor rotation, converting the magnetic signal into a regular electrical pulse signal that can be recognized by the adjustment module. The position memory module includes a power-off holding circuit, which can record the position of the electric push rod when the power is off, ensuring that the last position information of the system is not lost, and making it convenient to adjust directly after the next power-on. The touch button and display module provide a simple and clear two-way information transmission function for human-computer interaction, which greatly improves the reliability of the system and the user experience. Furthermore, this solution can detect electrical parameters, display posture, and obstacles through various detection modules, and provide auditory feedback prompts such as key tones, arrival prompts, and alarm sounds through the sound prompt module, allowing users to understand the display status and system status in a timely manner, thus achieving a high level of motion control and safety assurance. The signal isolation module establishes electrical isolation between the adjustment module and the drive module, effectively blocking the high-frequency noise and voltage fluctuations generated by the high current on the drive side from interfering with the sensitive control side circuit, greatly improving the stability and reliability of the system. The communication module allows the system to be connected as a node to a larger intelligent office system, medical equipment system, or industrial control system, allowing the system to receive instructions from the host computer or report its own status, thereby further realizing functions such as centralized control, remote control, and system linkage.

[0014] Therefore, this utility model proposes an electric adjustment system for a display and a display having the same. The solution provided by this utility model allows users to achieve precise adjustment of the display screen in all directions simply by pressing buttons, which greatly improves the adjustment efficiency. Users can memorize the buttons to make the display automatically and accurately return to the preset position, solving the pain point of repeated adjustments being difficult to achieve the correct position. This ensures the comfort and consistency of the display during use and provides a safe, convenient, and intelligent human-computer interaction experience, which is suitable for various scenarios such as high-end office, design, medical, and education. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 A schematic diagram of the module structure for the electric adjustment of the display provided in Example 1; Figure 2 This is a schematic diagram of the circuit structure of the power module; Figure 3 This is a schematic diagram of the circuit structure of the driving unit; Figure 4 This is a schematic diagram of the circuit structure of the position detection module; Figure 5 This is a schematic diagram of the circuit structure of the position memory module; Figure 6 This is a schematic diagram of the circuit structure of the button module; Figure 7 This is a schematic diagram of the circuit structure of the display module; Figure 8 This is a schematic diagram of the circuit structure of the current detection module; Figure 9 This is a schematic diagram of the circuit structure of the attitude detection module; Figure 10 This is a schematic diagram of the circuit structure of the anti-pinch detection module; Figure 11 This is a schematic diagram of the circuit structure of the sound prompt module; Figure 12 This is a schematic diagram of the circuit structure of the signal isolation module; Figure 13 This is a schematic diagram of the circuit structure of an RS485 communication module. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0018] Various embodiments of the present invention will be described more fully below. The present invention may have various embodiments, and adjustments and changes may be made therein. However, it should be understood that there is no intention to limit the various embodiments of the present invention to the specific embodiments disclosed herein, but rather the present invention should be understood to cover all adjustments, equivalents, and / or alternatives falling within the spirit and scope of the various embodiments of the present invention.

[0019] In the following, the terms “comprising” or “may include”, which may be used in various embodiments of the present invention, indicate the presence of the disclosed functions, operations, or elements, and do not limit the addition of one or more functions, operations, or elements. Furthermore, as used in various embodiments of the present invention, the terms “comprising,” “having,” and their cognates are intended only to indicate a specific feature, number, step, operation, element, component, or combination of the foregoing, and should not be construed as primarily excluding the presence of one or more other features, numbers, steps, operations, elements, components, or combinations of the foregoing, or the possibility of adding one or more combinations of features, numbers, steps, operations, elements, components, or combinations of the foregoing.

[0020] In various embodiments of this utility model, the expression "or" or "at least one of A and / or B" includes any combination or all combinations of the words listed simultaneously. For example, the expression "A or B" or "at least one of A and / or B" may include A, may include B, or may include both A and B.

[0021] The terms used in the various embodiments of this utility model (such as "first," "second," etc.) may modify various constituent elements in the various embodiments, but do not limit the corresponding constituent elements. For example, the above terms do not limit the order and / or importance of the elements. The above terms are only used for the purpose of distinguishing one element from other elements. For example, a first user device and a second user device refer to different user devices, although both are user devices. For example, without departing from the scope of the various embodiments of this utility model, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element.

[0022] It should be noted that, in this utility model, unless otherwise explicitly specified and defined, terms such as "installation," "connection," and "fixation" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0023] In this utility model, those skilled in the art should understand that the terms indicating orientation or positional relationship in the text are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0024] The terminology used in the various embodiments of this invention is for the purpose of describing particular embodiments only and is not intended to limit the various embodiments of this invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the various embodiments of this invention pertain. The terms (such as those defined in a generally used dictionary) are to be interpreted as having the same meaning as in the context of the relevant technical field and are not to be interpreted as having an idealized or overly formal meaning, unless clearly defined in the various embodiments of this invention.

[0025] Example 1 Please see Figure 1 This embodiment provides a monitor electric adjustment system. Through a highly integrated design, it not only achieves comfortable electric adjustment of the monitor, but also greatly enhances the user experience and added value of the product through multiple safety protections and intelligent memory functions. It is suitable for various scenarios such as high-end offices, design, medical, and education. The system specifically includes: The electric linear actuator includes a vertical adjustment actuator, a horizontal adjustment actuator, and an angle adjustment actuator. Each electric linear actuator is connected to a display. The vertical adjustment actuator enables the display to be adjusted in the vertical direction, the horizontal adjustment actuator enables the display to be adjusted in the horizontal direction, and the angle adjustment actuator enables the display to be adjusted in the pitch angle. The drive module drives and connects to each electric actuator, and is used to respond to adjustment signals to drive the electric actuators accordingly. The adjustment module is signal-connected to the drive module and is used to respond to button signals and send adjustment signals accordingly; in this embodiment, the adjustment module includes a main controller MCU. The position detection module is connected to the adjustment module and is used to detect the real-time position information of the electric actuator and send it to the adjustment module. The position memory module is signal-connected to the adjustment module and is used to obtain the real-time position information of the electric actuator through the adjustment module and store it as memory position information. In this embodiment, both the real-time position information and the memory position information include three sets of data: vertical position, horizontal position and angular position. The button module is signal-connected to the adjustment module. The button module includes memory buttons and several adjustment buttons, used to send button signals to the adjustment module. This allows the adjustment module to directly send adjustment signals to the drive module to adjust the electric actuator, or to acquire real-time position information from the position detection module and memory position information from the position memory module, and send adjustment signals to the drive module to adjust the electric actuator to the position corresponding to the memory position information. For example, the adjustment buttons may include, but are not limited to, up buttons, down buttons, forward buttons, backward buttons, tilt buttons, and depression buttons.

[0026] Specifically, please see Figure 2 The system proposed in this embodiment also includes a power supply module, which includes filter capacitors C1, C2, C3, C4, C5, C6, and C7, diode D1, inductor L1, DC-DC power chip U1, step-down chip U2, and step-down chip U3. In this embodiment, the 24V power supply is passed through filter capacitors C1 and C2 to power chip U1, diode D1, inductor L1, filter capacitors C3 and C4 to generate a 12V DC power supply. The 12V power supply is stepped down and filtered by step-down chip U2 and filter capacitor C5 to obtain a 5V DC power supply. The 5V power supply is then stepped down and filtered by step-down chip U3, filter capacitors C6 and C7 to obtain a 3.3V DC power supply, which then supplies power to the regulation module.

[0027] Specifically, the drive module includes three drive units for driving the vertical adjustment push rod, the horizontal adjustment push rod, and the angle adjustment push rod, respectively. Each drive unit includes a drive motor, a drive circuit, a bootstrap circuit, multiple discharge diodes, multiple drive resistors, and two decoupling capacitors. Please see Figure 3 The drive circuit is connected to the drive motor MOTOR. In this embodiment, the drive circuit includes an H-bridge motor MOTOR control circuit, which includes two MOSFET drive chips U12 and U13 and four MOSFETs Q5, Q6, Q7 and Q8. MOSFET drive chip U12 is connected to MOSFETs Q5 and Q6, and MOSFET drive chip U13 is connected to MOSFETs Q7 and Q8. It is used to drive the electric push rod to move in different directions or stop the electric push rod from moving. The bootstrap circuit includes bootstrap diodes D2 and D7 and bootstrap capacitors C33 and C34. The bootstrap circuit is connected to MOSFET driver chips U12 and U13 respectively to provide driving voltage for each MOSFET driver chip, thereby driving MOSFETs Q5 and Q7. Bootstrap diode D2 also passes through; Multiple discharge diodes D3, D4, D5, and D6 are used to provide a fast discharge path when the MOSFET is turned off. Multiple drive resistors R37, R38, R39, and R40 are used to provide a fast turn-on signal for the MOSFET or to provide a residual voltage discharge path when the MOSFET is turned off. Decoupling capacitor C32 is connected to the positive terminal of bootstrap diode D2 and MOSFET driver chip U12, respectively. Decoupling capacitor C35 is connected to the positive terminal of bootstrap diode D7 and MOSFET driver chip U13, respectively.

[0028] Specifically, please see Figure 4 The position detection module includes a pull-up resistor R49, a first detection resistor R50, a second detection resistor R51, a detection capacitor C41, a detection transistor Q11, and a Hall sensor CN3. The position detection module can provide position data for precise adjustment of the push rod, limit setting of the push rod, and power-off memory function. In another optional embodiment, the position detection module can integrate a potentiometer to replace the Hall sensor to monitor the extension and retraction length of the electric push rod in real time. One end of the pull-up resistor is connected to the adjustment module and the collector of the sensing transistor Q11 to output the position detection signal M1_A. The other end is connected to the third pin of the Hall sensor CN3. The second pin of the Hall sensor CN3 is connected to one end of the second sensing resistor R50, one end of the sensing capacitor C41 and the base of the sensing transistor Q11 through the first sensing resistor R51. The first pin of the Hall sensor CN3, the other end of the second sensing resistor R51, the other end of the sensing capacitor C41 and the emitter of the sensing transistor Q11 are grounded respectively. When the drive motor in the drive module is stopped, the position detection signal M1_A will be at a high level due to the pull-up resistor R49. After the drive motor rotates, the electromagnet periodically triggers the Hall switch, and the second pin of the Hall sensor will periodically output high and low levels to trigger the detection transistor Q11. The number of high and low pulses of the position detection signal M1_A is directly proportional to the number of rotations of the drive motor. The adjustment module can determine the speed of the drive motor based on the change in the number of pulses of the position detection signal M1_A, and then calculate the real-time position information of the electric push rod by conversion ratio.

[0029] Please see Figure 5 The position memory module includes a diode D8, two voltage divider resistors R47 and R48, a storage capacitor C39, and a filter capacitor C40. The position memory module has a non-volatile memory that can store real-time position information as memory position information, thereby recording the upper and lower limit positions of the electric actuator's stroke and recording the specified position of the electric actuator. This prevents impact on the mechanical limit and helps users achieve one-button adjustment. It also has a power failure memory function, ensuring that the position information is not lost after the system is powered off. When the system is powered on again, the system automatically reads the stored position data and uses this position as the new control reference. The cathode of diode D8 is connected to the system power supply VCC and the energy storage capacitor C39, respectively. The anode of diode D8 is connected to the input power supply VIN, and is connected to the voltage divider resistor R48, the filter capacitor C40, and the regulation module through a voltage divider resistor R47. This is used to receive the power detection signal Power sent by the regulation module. When the system is working normally, the power detection signal Power is high. When the input power supply VIN is de-energized, the power detection signal Power will become low. When the system determines that the input power supply VIN is de-energized based on the power detection signal Power, it maintains the power supply to VCC through the energy storage of the energy storage capacitor C39, thereby sustaining the system for an additional period of time. This allows the system to store and remember the position information, and restore each unit to its state before the power failure when the power is restored next time.

[0030] Further, please see Figure 6 The button module includes multiple capacitive touch buttons K1, K2, K3, K4, K5, K6 and a touch sensing chip U6 connected to each touch button. The output of the touch sensing chip U6 is connected to the adjustment module. When the sensor disk of the touch button senses the user's finger pressing, it can generate a touch signal, which is processed internally by the touch sensing chip U6 and output to the adjustment module using BCD encoding. Please see Figure 7 The system proposed in this embodiment also includes a display module, which includes a digital tube driver chip U7 and LED digital tube elements connected to each other. In this embodiment, the LED digital tube elements include a 3-digit LED digital tube element LED1. The digital tube driver chip U7 is connected to the adjustment module. The adjustment module can transmit display data to the digital tube driver chip U7 via IIC, so that the digital tube element LED1 can display the display data in the form of letters, numbers, etc., such as displaying the system's operating status. It can also display a flashing state when the memory button is pressed and the memory position information is recalled, and a red light state when the system malfunctions, so as to provide corresponding prompts to the user.

[0031] Please see Figures 8-10 Preferably, the system proposed in this embodiment further includes: The current detection module includes a voltage and current detection chip U4, a decoupling capacitor C11, and three sets of filter channels. The detection chip is connected to each set of filter channels to collect the driving status of each drive unit and generate corresponding electrical detection signals that are transmitted to the adjustment module. Each set of filter channels is connected to different drive units, which can simultaneously detect the operating status of three drive motor loads and output the voltage and current parameters after converting them into digital IIC signals. The three sets of filter channels include R4, R5, C8, R6, R7, C9, and R8, R9, C10, respectively, and are connected in parallel with voltage and current detection resistors R1, R2, and R3. The VIN power supply is connected to load OUT1 through detection resistor R1, to load OUT2 through detection resistor R2, and to load OUT3 through detection resistor R3. The attitude detection module includes an attitude sensing chip U5 connected to the adjustment module and two filter capacitors C12 and C13 connected to the attitude sensing chip. The attitude sensing chip U5 is used to detect the motion trajectory of the electric push rod in the vertical, horizontal and angular directions and generate attitude detection signals to be transmitted to the adjustment module accordingly. It can provide direction detection for the main controller and provide alarm information when the parameters exceed the range of motion direction. The motion trajectory detected by the attitude sensing chip U5 can be processed internally and the parameters can be converted into digital IIC signals before being output. The anti-pinch detection module includes an anti-pinch sensor CN1, three resistors R10, R11, and R12, and a transistor Q1. The collector of transistor Q1 is connected to the first pin of the anti-pinch sensor CN1 through resistor R10. The base of transistor Q1 is connected to the other two resistors R11 and R12, and then connected to the second pin of the anti-pinch sensor through resistor R12. The emitter of transistor Q1 is grounded. The adjustment module is connected to the collector of transistor Q1 to receive the anti-pinch detection signal DI1. In the default state, the anti-pinch detection signal DI1 will be affected by resistor R1. The 3.3V pull-up pin is at a high level. When the anti-pinch sensor is triggered, the voltage signal reaches the base of transistor Q1 through resistor R12. At this time, transistor Q1 is turned on, and the anti-pinch detection signal DI1 changes from high level to low level. When the anti-pinch trigger stops, the base of transistor Q1 goes low, and transistor Q1 is turned off. At this time, the anti-pinch detection signal DI1 changes from low level to high level. Therefore, the adjustment module can determine whether there is an anti-pinch signal by the high and low level changes of the anti-pinch signal DI1 port, thereby realizing the control of triggering alarm and linkage functions.

[0032] Further, please see Figure 11The system proposed in this embodiment also includes a sound prompt module, which includes two driving resistors R13 and R14, a driving transistor Q2, and a sound element. The base of the driving transistor Q2 is connected to the two driving resistors R13 and R14 respectively, the collector of the driving transistor Q2 is connected to the sound element, and the emitter of the driving transistor Q2 is grounded. In this embodiment, the sound element includes a buzzer element BUZ. The adjustment module is connected to the drive resistor R13 so that the drive transistor is turned on and the buzzer element BUZ is made to sound by the adjustment signal sent by the adjustment module based on the button signal, electrical detection signal, posture detection signal and / or anti-pinch detection signal, thereby enabling the sound prompt module to provide sound feedback and alarm prompts. In this embodiment, the buzzer element BUZ can emit corresponding prompt sounds in scenarios such as when a button is pressed and the adjustment module receives the button command, the drive module drives the electric push rod to the position, and the memory position is successfully saved. It can also emit an alarm sound when an abnormality is detected in the system through electrical detection signal, attitude detection signal, and anti-pinch detection signal.

[0033] In an optional implementation, the current detection module can monitor the operating current of each drive motor in the drive module in real time. When the drive motor stalls or is overloaded due to any mechanical reason, the system will immediately stop the drive motor from rotating and trigger an alarm from the sound prompt module. The attitude detection module includes a high-precision triaxial accelerometer. The triaxial accelerometer can monitor the changes in the attitude angular acceleration of the display and the support structure supporting the display in real time, thereby directly detecting the tilt state of the table on which the display is located and the change in the center of gravity of the display. When the main controller calculates that the current attitude exceeds the preset safety threshold, it will determine that the display is at risk of tipping over. It can immediately stop the drive module from driving the electric push rod, trigger the sound prompt module to alarm, and display the corresponding tipping fault code on the LED display. The anti-pinch detection module includes a soft rubber strip switch sensor set on the critical path of the display. The critical movement path of the display may include, but is not limited to, the edge position of the display descending and the edge position of the display horizontally backward. When an object enters the detection area of ​​the soft rubber strip switch sensor during the movement of the display and triggers the sensor, the sensor will immediately send a high-priority interrupt signal to the main controller. After receiving the signal, the main controller will cause the drive module to immediately stop the current drive of the electric push rod and drive the electric push rod to run in the opposite direction for a safe distance to release the potentially pinched object. At the same time, the audible prompt module will sound an alarm.

[0034] Preferably, please refer to Figure 12The system proposed in this embodiment also includes a signal isolation module. In this embodiment, the signal isolation module includes a PWM signal isolation module, which is connected to the adjustment module and the drive module respectively. It includes a signal isolation chip U10 connected to the adjustment module and the drive module and two filter capacitors C29 and C30 connected to the signal isolation chip. The signal isolation chip U10 is used to receive the PWM-IN signal from the adjustment module, perform internal isolation processing, and output the PWM-OUT signal to the drive module. It can completely isolate the PWM-IN signal and the PWM-OUT signal, reduce the current noise generated at the PWM-OUT load drive end from interfering with the control unit, and improve the operating stability of the adjustment module.

[0035] Preferably, please refer to Figure 13 The system proposed in this embodiment also includes a communication module, which includes a signal conversion chip U14, an anti-interference matching circuit, and a protection circuit. In this embodiment, the communication module includes an RS485 communication module, which can support Modbus RTU or a custom serial port protocol. It allows remote terminals to send commands and control the system's actions through computer software and a central control system. It can also query the current position, current value, alarm status, and other information of each group of electric push rods in real time. It can remotely set system parameters such as anti-pinch current threshold, movement speed, and limit position. It has the advantages of strong anti-interference ability, support for networking, and easy integration into large-scale intelligent systems. The transmitting end, receiving end and enable end of the signal conversion chip U14 are connected to the adjustment module. The signal conversion chip is connected to the first signal line A and the second signal line B and is sequentially connected to the anti-interference matching circuit and the protection circuit. It is used to convert TTL signals and communication signals. The first signal line A is connected to the first pull-up / pull-down resistor R52, the second signal line B is connected to the second pull-up / pull-down resistor R54, and the power supply terminal VCC of the signal conversion chip U14 is also connected to a decoupling filter capacitor C42. One end of the decoupling filter capacitor C42 is connected to the 5V power supply, and the other end is grounded together with the other end of the first pull-up / pull-down resistor R52. The anti-interference matching circuit includes a terminating matching resistor R53 connected to the first pull-up / pull-down resistor R52 and the second pull-up / pull-down resistor R54 respectively, a first anti-interference resistor R55 connected to the first pull-up / pull-down resistor R52 and the terminating matching resistor R53 respectively, and a second anti-interference resistor R56 connected to the second pull-up / pull-down resistor R54 and the terminating matching resistor R53 respectively. The anti-interference matching circuit can improve the signal transmission quality, and the first pull-up / pull-down resistor R52 and the second pull-up / pull-down resistor R54 can provide a stable logic level for the AB signal. The protection circuit includes a first anti-interference resistor R55, a second anti-interference resistor R56, and three bidirectional TVS diodes D9, D10, and D11 connected to the first and second anti-interference resistors R55 and R56 respectively, as well as a first fuse F1 connected to the first anti-interference resistor R55 and a second fuse F2 connected to the second anti-interference resistor R56. The bidirectional TVS diodes D9, D10, and D11 can protect the RS485 signal bus, preventing high voltage damage to the signal conversion chip U14 when the bus is subjected to external interference such as lightning strikes or surges. The self-resetting fuses F1 and F2 can automatically cut off the bus signal to protect the conversion chip U14 when the current on the bus is overloaded, thereby realizing overcurrent protection on the bus.

[0036] Example 2 This embodiment proposes a display, which includes the display electric adjustment system as proposed in Embodiment 1.

[0037] In summary, this utility model proposes an electric adjustment system for a display and a display having the same. The solution provided by this utility model allows users to achieve precise and comprehensive adjustment of the display screen simply by pressing buttons, greatly improving adjustment efficiency. Users can memorize buttons to automatically and accurately restore the display to a preset position, solving the pain point of repeated adjustments being difficult to achieve the correct position. This ensures comfort and consistency during display use and provides a safe, convenient, and intelligent human-computer interaction experience, suitable for various scenarios such as high-end offices, design, medical care, and education.

[0038] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A display electric adjustment system, characterized in that, include: The electric linear actuator includes a vertical adjustment linear actuator, a horizontal adjustment linear actuator, and an angle adjustment linear actuator, each of which is connected to a display. The drive module drives each of the electric push rods and is used to respond to adjustment signals to drive the electric push rods accordingly. An adjustment module, which is signal-connected to the drive module, is used to respond to button signals and send corresponding adjustment signals. A position detection module, which is signal-connected to the adjustment module, is used to detect the real-time position information of the electric push rod and send it to the adjustment module; A position memory module is signal-connected to the adjustment module and is used to obtain and store the real-time position information of the electric push rod as memory position information through the adjustment module. A button module is signal-connected to the adjustment module. The button module includes a memory button and several adjustment buttons, used to send button signals to the adjustment module so that the adjustment module directly sends an adjustment signal to the drive module to adjust the electric actuator, or to enable the adjustment module to obtain the real-time position information of the position detection module and the memory position information of the position memory module and send an adjustment signal to the drive module to adjust the electric actuator to the position corresponding to the memory position information.

2. The display electric adjustment system according to claim 1, characterized in that, The drive module includes three drive units for driving the vertical adjustment push rod, the horizontal adjustment push rod and the angle adjustment push rod respectively. Each drive unit includes a drive motor, a drive circuit, a bootstrap circuit, multiple discharge diodes, multiple drive resistors and two decoupling capacitors. The driving circuit is connected to the driving motor and includes two MOS transistor driving chips and four MOS transistors. The two MOS transistor driving chips are respectively connected to two different MOS transistors and are used to drive the driving motor to rotate forward, reverse, or stop. The bootstrap circuit is connected to each of the MOS transistor driver chips and is used to provide a driving voltage to each of the MOS transistor driver chips, thereby driving one of the MOS transistors connected to the MOS transistor driver chip. Each of the discharge diodes is used to provide a fast discharge channel when the MOSFET is turned off, and each of the drive resistors is used to provide a fast turn-on signal for the MOSFET or to provide a residual voltage discharge channel when the MOSFET is turned off. The decoupling capacitors are respectively connected to the bootstrap circuit and one of the MOSFET driver chips.

3. The display electric adjustment system according to claim 1 or 2, characterized in that, The position detection module includes a pull-up resistor, a first detection resistor, a second detection resistor, a detection capacitor, a detection transistor, and a Hall sensor; One end of the pull-up resistor is connected to the regulating module and the collector of the detection transistor to receive the position detection signal, and the other end is connected to the third pin of the Hall sensor. The second pin of the Hall sensor is connected to one end of the second detection resistor, one end of the detection capacitor and the base of the detection transistor through the first detection resistor. The first pin of the Hall sensor, the other end of the second detection resistor, the other end of the detection capacitor and the emitter of the detection transistor are respectively grounded.

4. The display electric adjustment system according to claim 1, characterized in that, The position memory module includes a diode, two voltage divider resistors, a storage capacitor, and a filter capacitor; The negative terminal of the diode is connected to the system power supply and the energy storage capacitor, respectively. The positive terminal of the diode is connected to the input power supply and is connected to another voltage divider resistor, a filter capacitor and the adjustment module through a voltage divider resistor. It is used to receive the power detection signal sent by the adjustment module. When the system determines that the input power supply is cut off based on the power detection signal, it stores the memory position information through the energy storage of the energy storage capacitor.

5. The display electric adjustment system according to claim 1, characterized in that, The button module includes multiple touch buttons and a touch sensing chip connected to each touch button, and the output terminal of the touch sensing chip is connected to the adjustment module. The system also includes a display module, comprising a digital tube driver chip and digital tube elements connected to each other. The digital tube driver chip is connected to the adjustment module and is used to display the display data transmitted by the adjustment module through the digital tube elements.

6. The display electric adjustment system according to claim 2, characterized in that, Also includes: The current detection module includes a detection chip, a decoupling capacitor, and three sets of filter channels. Each set of filter channels is connected to a different driving unit. A detection resistor is connected in parallel in any set of filter channels. The detection chip is connected to each set of filter channels and is used to collect the driving status of each driving unit and generate an electrical detection signal that is transmitted to the adjustment module accordingly. The attitude detection module includes an attitude sensing chip connected to the adjustment module and two filter capacitors connected to the attitude sensing chip. The attitude sensing chip is used to detect the motion trajectory of the electric push rod in various directions and generate attitude detection signals that are transmitted to the adjustment module accordingly. The anti-pinch detection module includes an anti-pinch sensor, three resistors, and a transistor. The collector of the transistor is connected to the second pin of the anti-pinch sensor through one of the resistors. The base of the transistor is connected to the other two resistors and is connected to the first pin of the anti-pinch sensor through one of the resistors. The emitter of the transistor is grounded. The adjustment module is connected to the collector of the transistor to receive the anti-pinch detection signal.

7. The display electric adjustment system according to claim 6, characterized in that, Also includes: The sound prompt module includes two driving resistors, a driving transistor, and a sound element. The base of the driving transistor is connected to the two driving resistors, the collector of the driving transistor is connected to the sound element, and the emitter of the driving transistor is grounded. The adjustment module is connected to a driving resistor so that the driving transistor is turned on and the sound element produces sound by the adjustment signal sent by the adjustment module based on the button signal, the electrical detection signal, the posture detection signal and / or the anti-pinch detection signal.

8. The display electric adjustment system according to claim 1, characterized in that, Also includes: A signal isolation module is provided, which is connected to the adjustment module and the drive module respectively. The signal isolation module includes a signal isolation chip connected to the adjustment module and the drive module and two filter capacitors connected to the signal isolation chip. The signal isolation chip is used to receive the input signal of the adjustment module, perform internal isolation processing, and then convert it into an output signal to be output to the drive module.

9. The display electric adjustment system according to claim 1, characterized in that, Also includes: The communication module includes a signal conversion chip, an anti-interference matching circuit, and a protection circuit. The transmitting end, receiving end and enabling end of the signal conversion chip are connected to the adjustment module. The signal conversion chip is connected to a first signal line and a second signal line and is sequentially connected to the anti-interference matching circuit and the protection circuit, and is used to convert TTL signals and communication signals. A first pull-up / pull-down resistor is connected to the first signal line, a second pull-up / pull-down resistor is connected to the second signal line, and a decoupling filter capacitor is also connected to the power supply terminal of the signal conversion chip. The decoupling filter capacitor and the other end of the first pull-up / pull-down resistor are grounded together. The anti-interference matching circuit includes a terminating matching resistor that is connected to the first pull-up / pull-down resistor and the second pull-up / pull-down resistor respectively, a first anti-interference resistor that is connected to the first pull-up / pull-down resistor and the terminating matching resistor respectively, and a second anti-interference resistor that is connected to the second pull-up / pull-down resistor and the terminating matching resistor respectively. The protection circuit includes a first anti-interference resistor, a second anti-interference resistor, and three bidirectional TVS diodes connected to the first and second anti-interference resistors respectively, as well as a first fuse connected to the first anti-interference resistor and a second fuse connected to the second anti-interference resistor.

10. A display, characterized in that, Includes the display electric adjustment system as described in any one of claims 1-9.

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