A screen adjustment system

Abstract

The application discloses a screen adjusting system, relates to the technical field of electronics, and comprises a motor driving circuit, an upper rotating shaft, a lower rotating shaft and a screen. The motor driving circuit comprises a first circuit, a second circuit, a label electronic element, a variable electronic element, a first motor and a second motor. The output ends of the label electronic element are connected with the first circuit and the second circuit respectively. The output ends of the variable electronic element are connected with the first circuit and the second circuit respectively. The first circuit and the second circuit are connected with the first motor and the second motor in parallel respectively, and the first motor and the second motor are grounded simultaneously. The first motor is connected with the upper rotating shaft, and the second motor is connected with the lower rotating shaft. The screen is arranged between the upper rotating shaft and the lower rotating shaft. The application can realize automatic adjustment of the opening area of the screen, reduce repeated development and purchase of screens with different opening areas, reduce research and development expenses, and shorten the research and development cycle.

Description

Technical Field

[0001] This application relates to the field of electronic technology, and in particular to a screen adjustment system. Background Technology

[0002] With the advancement of human technology and the widespread application of artificial intelligence and big data, the demand for servers will continue to increase; meanwhile, the power consumption of individual servers and the power density of server racks will continue to rise. Figure 1 As shown, the fixed opening ratio of the baffle is no longer suitable for the heat dissipation requirements under all operating conditions. As the core component of server air intake and dust prevention, the opening area of ​​the baffle directly affects the efficiency of the air duct, the power consumption of the fan and the reliability of the equipment. The fixed opening method is prone to waste of cold air and high energy consumption under low load. Under high load, it may also form local hot spots due to insufficient air intake, triggering server performance slowdown or hardware aging. Summary of the Invention

[0003] This application provides a screen adjustment system, which includes a motor drive circuit, an upper rotating shaft, a lower rotating shaft, and a screen. The screen includes a first region and a second region. The motor drive circuit includes a first circuit, a second circuit, a tag electronic component, a variable electronic component, a first motor, and a second motor. The output terminals of the tag electronic component are connected to the first circuit and the second circuit, respectively. The output terminals of the variable electronic component are also connected to the first circuit and the second circuit, respectively. The first circuit and the second circuit are each connected in parallel with the first motor and the second motor, respectively. The first motor and the second motor are both grounded. The first motor is connected to the upper rotating shaft, and the second motor is connected to the lower rotating shaft. The screen is positioned between the upper and lower rotating shafts. The tag electronic component determines the conduction selection of the first and second circuits, and the variable electronic component controls the first and second motors. The first and second motors drive the upper and lower rotating shafts to rotate to the corresponding region of the screen, thereby adjusting the opening area of ​​the screen. This application enables automatic adjustment of the opening area of ​​the screen, reducing the repetitive development and procurement of screens with different opening areas, lowering R&D costs, and shortening the R&D cycle.

[0004] This application provides a screen adjustment system, which includes a motor drive circuit, an upper rotating shaft, a lower rotating shaft, and a screen. The screen includes a first region and a second region. The motor drive circuit includes a first circuit, a second circuit, tag electronic components, variable electronic components, a first motor, and a second motor. The output terminals of the tag electronic components are connected to the first circuit and the second circuit, respectively; the output terminals of the variable electronic components are connected to the first circuit and the second circuit, respectively. Both the first circuit and the second circuit are connected in parallel with the first motor and the second motor, respectively, and the first motor and the second motor are grounded at the same time. The first motor is connected to the upper rotating shaft, and the second motor is connected to the lower rotating shaft; the baffle is set between the upper rotating shaft and the lower rotating shaft; The tag electronic components are used to determine the conduction selection of the first circuit and the second circuit, and the variable electronic components are used to control the first motor and the second motor. The first motor and the second motor are used to drive the upper rotating shaft and the lower rotating shaft to rotate to the corresponding area of ​​the baffle, so as to adjust the opening area of ​​the baffle. The input terminal of the tag electronic component is connected to the initial voltage terminal, and the input terminal of the variable electronic component is connected to the first voltage terminal.

[0005] This application provides a barrier adjustment system comprising a motor drive circuit, an upper rotating shaft, a lower rotating shaft, and a barrier. The barrier includes a first area and a second area. The motor drive circuit includes a first circuit, a second circuit, tag electronic components, variable electronic components, a first motor, and a second motor. The output terminals of the tag electronic components are connected to the first and second circuits, respectively. The output terminals of the variable electronic components are also connected to the first and second circuits. Both the first and second circuits are connected in parallel with the first and second motors, respectively, and both motors are grounded. The first motor is connected to the upper rotating shaft, and the second motor is connected to the lower rotating shaft. The barrier is positioned between the upper and lower rotating shafts. The tag electronic components determine the conduction selection of the first and second circuits, and the variable electronic components control the first and second motors. The first and second motors drive the upper and lower rotating shafts to rotate to the corresponding area of ​​the barrier, thereby adjusting the opening area of ​​the barrier. This application enables automatic adjustment of the opening area of ​​the barrier, reducing the repetitive development and procurement of barriers with different opening areas, lowering R&D costs, and shortening the R&D cycle.

[0006] The technical solution of this application makes the later configuration and maintenance of servers more convenient and intelligent. When the core components of the server are modified or replaced, it is not necessary to replace the new mesh with a new mesh with a suitable opening area due to heat dissipation issues; it is only necessary to replace the identification label of the mesh with the new configuration to achieve automatic adaptation of the opening area. Attached Figure Description

[0007] To more clearly illustrate the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the 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.

[0008] Figure 1 The relevant server mesh diagram provided for the embodiments of this application; Figure 2 Server mesh classification diagram provided for embodiments of this application; Figure 3A first circuit diagram of the motor drive circuit provided in the embodiments of this application; Figure 4 A structural diagram illustrating the adjustment of the opening area of ​​the baffle provided in an embodiment of this application; Figure 5 A second circuit diagram of the motor drive circuit provided in the embodiments of this application; Figure 6 This is a diagram showing the overall structure of the barrier connection provided in an embodiment of this application. Figure 7 This is a schematic diagram of the structure of the label provided in an embodiment of this application; Figure 8 A circuit diagram of a reset switch provided in an embodiment of this application; Attached image captions: U0, Initial voltage terminal; Vcc, Voltage input terminal; U1, First voltage terminal; Vcc1, Forward voltage terminal; Vcc2, Reverse voltage terminal; U2, Second voltage terminal; Rx, Tag electronic component; R1, First electronic component; R2, Second electronic component; R3, Third electronic component; R4, Fourth electronic component; R5, Fifth electronic component; R6, Sixth electronic component; Ry, Variable electronic component; K1, First control switch; K2, Second control switch; K3, Third control switch; K, Reset switch; Ma, First motor; Mb, Second motor. Detailed Implementation

[0009] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this application.

[0010] It should be noted that, in the description of this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. The terms "first," "second," etc., in this application are used to distinguish similar objects and are not used to describe a specific order or sequence.

[0011] To enable those skilled in the art to better understand the present application, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0012] The specific application environment architecture or specific hardware architecture on which the implementation of the mesh adjustment method depends is described here.

[0013] like Figure 2 As shown, the mesh of related servers is usually a metal stamped part. Depending on the installation location and heat dissipation requirements, the opening area of ​​the mesh is usually fixed. If different server configurations require different mesh opening areas, they need to be molded and processed separately. For example, the same location may require a fully open mesh, a 2 / 3 open mesh, and a 1 / 3 open mesh due to different heat dissipation conditions. Therefore, it is necessary to create part numbers for each of the three types of mesh, mold processing, procurement, transportation, warehousing, etc., which increases R&D costs and extends the development cycle.

[0014] The mesh design method proposed in this application enables the mesh opening area to be automatically adjusted to meet different server configuration requirements, providing a more efficient and energy-saving solution for high-density server scenarios.

[0015] Embodiments of this application provide a screen adjustment system, such as... Figure 3 As shown, the screen adjustment system includes a motor drive circuit, an upper rotating shaft, a lower rotating shaft, and a screen. The screen includes a first region and a second region. The motor drive circuit includes a first circuit, a second circuit, a tag electronic component Rx (tag resistor), a variable electronic component Ry (sliding variable resistor), a first motor Ma (first motor), and a second motor Mb (second motor). The output terminals of the tag electronic component Rx are connected to the first circuit and the second circuit respectively; the output terminals of the variable electronic component Ry are connected to the first circuit and the second circuit respectively. The first circuit and the second circuit are each connected in parallel with the first motor Ma and the second motor Mb, respectively, and the first motor Ma and the second motor Mb are grounded at the same time. The first motor Ma is connected to the upper rotating shaft, and the second motor Mb is connected to the lower rotating shaft; the baffle is set between the upper rotating shaft and the lower rotating shaft; The tag electronic component Rx is used to determine the conduction selection of the first circuit and the second circuit, and the variable electronic component Ry is used to control the first motor Ma and the second motor Mb. The first motor Ma and the second motor Mb are used to drive the upper rotating shaft and the lower rotating shaft to rotate to the corresponding area of ​​the baffle, so as to adjust the opening area of ​​the baffle. The input terminal of the tag electronic component Rx is connected to the initial voltage terminal U0, and the input terminal of the variable electronic component Ry is connected to the first voltage terminal U1.

[0016] Specifically, this application introduces a design system for a front window baffle that can automatically adjust the opening area, thereby achieving different heat dissipation requirements for different server configurations: The server configuration, target baffle area, and target baffle opening area are determined based on the resistance value of the label's electronic components; corresponding logic gate circuits are connected according to the server configuration, driving the first and second motors; the resistance values ​​of the variable electronic components are adjusted to control the first and second motors until the baffle reaches the target area, and the server's baffle area reaches the target baffle opening area. The external dimensions of the front window baffle in this application can be consistent with existing common conventional baffle dimensions as needed; the side of the baffle includes a label pasting position and an embedded reset switch, without affecting the front appearance or assembly function. The internal structure mainly includes a rotating motor, a rotating shaft, a gate logic circuit, and a reset switch.

[0017] like Figure 4 As shown, the upper and lower edges of the baffle have two built-in rotating shafts. By rotating the rotating shafts, the baffle can be adjusted to the position of the required opening area, thereby automatically adapting to various heat dissipation needs.

[0018] Meanwhile, the windshield shutter mentioned in this application includes a sliding variable resistor on one side. The shutter has three adjustable opening areas. When rotated to the corresponding position by a rotating motor, the spring-loaded contact of that position is coupled to the variable resistor of the shutter, so that the variable resistor Ry is connected to the motor drive circuit. In this way, the input first voltage terminal U1 generates a variable voltage drop through the variable resistor Ry, which is used as the input of the fourth logic gate circuit, the fifth logic gate circuit, and the sixth logic gate circuit respectively. This is used by the motor drive circuit to determine whether the windshield has been adjusted to the position with the corresponding opening.

[0019] This application can be applied to all rack servers, tower servers, network switches with different front window mesh requirements for heat dissipation, and cabinet servers, etc.

[0020] Understandably, this application enables automatic adjustment of the opening area of ​​the mesh, reducing the redundant development and procurement of meshes with different opening areas, thereby reducing R&D costs and shortening the R&D cycle. Simultaneously, it makes subsequent server reconfiguration and maintenance more convenient and intelligent. After the core components of the server are reconfigured or replaced, there is no need to replace the mesh with one that matches the opening area due to heat dissipation issues; only the identification label of the mesh needs to be changed according to the reconfigured setup to achieve automatic adjustment of the opening area. This application's technical solution truly achieves zero human intervention, completely overturning the traditional fixed-appearance mesh solution, making server heat dissipation more flexible and assembly more convenient.

[0021] The server mesh with different opening areas not only requires the development of individual molds, increasing R&D costs, but also involves the creation of individual part numbers, procurement, material preparation, warehousing, and transportation, which not only increases material management costs, transportation costs, and warehousing costs, but also extends the R&D cycle.

[0022] Unlike traditional fixed-aperture front window screens, the technical solution of this application allows for free adjustment of the area of ​​the server's front window screen, making the screen more adaptable, enabling more scientific and precise server heat dissipation management, and providing greater operability for future server upgrades.

[0023] The technical solution of this application uses digital logic gate circuits to design a control circuit that can automatically control the rotation of the motor, thereby automatically adjusting the opening area of ​​the mesh through the rotation of the motor.

[0024] Meanwhile, the technical solution of this application adopts the function of automatically identifying configuration information. By configuring different servers to bring out different label materials, the opening area of ​​the barrier can be accurately controlled.

[0025] Finally, in response to foreseeable common scenarios such as server reconfiguration, rework, and return to inventory, this application also includes a function to reset the position of the mesh opening.

[0026] Among them, logic gate circuits: In digital circuits, the so-called "gate" refers to a circuit that can realize basic logical relationships; the most basic logical relationships are AND, OR, and NOT, and the most basic logic gates are AND gate, OR gate, and NOT gate; logic gates can be constructed using discrete components such as resistors, capacitors, diodes, and transistors, becoming discrete component gates; or all the components and connecting wires of a gate circuit can be fabricated on the same semiconductor substrate to form an integrated logic gate circuit.

[0027] Sliding electronic component: This solution uses a rotating motor to rotate the front window grille, achieving the effect of the contacts sliding on the resistor, thereby realizing the function of variable resistance.

[0028] Furthermore, the first circuit includes a first logic gate circuit, a fourth logic gate circuit, a seventh logic gate circuit, and a first electronic component R1 (a first resistor). The output terminal of the first electronic component R1 is connected to the first input terminal of the first logic gate circuit. The input terminal of the first electronic component R1 is connected to the voltage input terminal Vcc. The output terminal of the tag electronic component Rx is connected to the second input terminal of the first logic gate circuit. The first output terminal of the first logic gate circuit is connected to the first input terminal of the fourth logic gate circuit. The output terminal of the fourth logic gate circuit is connected to the first input terminal of the seventh logic gate circuit. The output terminal of the seventh logic gate circuit is connected in parallel with the first motor Ma and the second motor Mb. The second input terminal of the first logic gate circuit serves as the input terminal of the first loop, and the output terminal of the seventh logic gate circuit serves as the output terminal of the first loop. The second circuit includes the second logic gate circuit, the fifth logic gate circuit, the eighth logic gate circuit, and the second electronic component R2 (the second resistor). The output terminal of the second electronic component R2 is connected to the first input terminal of the second logic gate circuit. The input terminal of the second electronic component R2 is connected to the first electronic component R1. The output terminal of the tag electronic component Rx is connected to the second input terminal of the second logic gate circuit. The first output terminal of the second logic gate circuit is connected to the first input terminal of the fifth logic gate circuit. The output terminal of the fifth logic gate circuit is connected to the first input terminal of the eighth logic gate circuit. The output terminal of the eighth logic gate circuit is connected in parallel with the first motor Ma and the second motor Mb. The second input terminal of the second logic gate circuit serves as the input terminal of the second loop, and the output terminal of the eighth logic gate circuit serves as the output terminal of the second loop.

[0029] Furthermore, such as Figure 5 As shown, the barrier also includes a third region, and the motor drive circuit also includes a third circuit. The output terminal of the tag electronic component Rx is connected to the third circuit, and the output terminal of the variable electronic component Ry is connected to the third circuit. The third circuit is connected in parallel with the first motor Ma and the second motor Mb. The third circuit includes the third logic gate circuit, the sixth logic gate circuit, the ninth logic gate circuit, and the third electronic component R3 (the third resistor). The output of the third electronic component R3 is connected to the first input of the third logic gate circuit. The input of the third electronic component R3 is connected to the second electronic component R2. The output of the tag electronic component Rx is connected to the second input of the third logic gate circuit. The first output of the third logic gate circuit is connected to the first input of the sixth logic gate circuit. The output of the sixth logic gate circuit is connected to the first input of the ninth logic gate circuit. The output of the ninth logic gate circuit is connected in parallel with the first motor Ma and the second motor Mb. The second input terminal of the third logic gate circuit serves as the input terminal of the third loop, and the output terminal of the ninth logic gate circuit serves as the output terminal of the third loop. The output terminal of the variable electronic element Ry is connected to the second input terminal of the fourth logic gate circuit, the fifth logic gate circuit, and the sixth logic gate circuit, respectively. The second output of the first logic gate is connected to the third input of the eighth and ninth logic gates, respectively; the second output of the second logic gate is connected to the third input of the seventh and ninth logic gates, respectively; and the second output of the third logic gate is connected to the second input of the seventh and eighth logic gates, respectively.

[0030] Specifically, such as Figure 5 As shown, the logic gate connected to input b is called the first logic gate, the logic gate connected to input d is called the second logic gate, the logic gate connected to input f is called the third logic gate, the logic gate connected to input h is called the fourth logic gate, the logic gate connected to input g is called the fifth logic gate, the logic gate connected to input i is called the sixth logic gate, the logic gate connected to input o is called the seventh logic gate, the logic gate connected to input p is called the eighth logic gate, and the logic gate connected to input q is called the ninth logic gate. The K1 loop controlled by the first, fourth, and seventh logic gates is called the first loop; similarly, the K2 loop controlled by the second, fifth, and eighth logic gates is called the second loop, and the K3 loop controlled by the third, sixth, and ninth logic gates is called the third loop.

[0031] Since this application mentions that there are 3 configurations of the front window shutter corresponding to 3 opening areas, in order for the shutter to automatically adjust the required opening area according to the configuration, a total of 3 link switches K1, K2 and K3 are set in the motor drive circuit. The three switches are connected in parallel with the drive motor of the front window shutter, and the drive motors of each link are connected without interfering with each other.

[0032] Here, the first logic gate is connected to the input terminal Vcc through the first electronic component R1, at which point terminal a provides a given high level for the first logic gate. The second logic gate is connected to the input terminal Vcc through R1 and R2, at which point terminal c provides a given high level for the second logic gate. The third logic gate is connected to the input terminal Vcc through R1, R2, and R3, at which point terminal e provides a given high level for the third logic gate. Using the principle of resistor voltage division, we know that the voltage drop at terminals a, c, and e decreases sequentially. Here, the output voltages at terminals a, c, and e are set to far exceed the normal fluctuation range of high and low levels to prevent the output voltages from being simultaneously interpreted as high by subsequent logic gates.

[0033] For example, if 12V ± 2V is a high level in the first logic gate, 7V ± 2V is a high level in the second logic gate, and 3V ± 2V is a high level in the third logic gate, then the output voltage must be at least 10V, 6V, and 1V respectively when R1, R2, and R3 are shorted, by adjusting the resistor values. However, changing 6V to 5V is not possible because 5V would be simultaneously interpreted as a high level within the common range of the second and third logic gates.

[0034] Specifically, as shown in Table 1, when the server configuration includes a smart network interface card (NIC), the label is... It was brought out; at this time, the label was removed before installing the barrier. Paste it on the side of the barrier at the designated label pasting location, such as... Figure 5 As shown, Rx is now switched on; the initial voltage U0 passes through the tag. After pre-embedding the resistor Rx, it is connected to the b, d, and f ports of three logic gates, respectively. At this point, the voltage drop across the three ports is the same. When the voltage drop at port b meets the high level of the first logic gate, ports d and f are both invalid relative to the second and third logic gates. According to the characteristics of logic gates, ports a and b are both high, and port h outputs a high level. Based on the characteristics of NAND gates, the output i of the first logic gate is low. Since output i simultaneously provides input to the eighth and ninth logic gates, based on the characteristics of AND gates, the outputs of the eighth and ninth logic gates are both low. Therefore, when the voltage drop across the label resistor Rx meets the high level of the first loop, the second control switch K2 and the third control switch K3 of the second and third loops will not be turned on.

[0035] It is understandable that the resistance of Ry is highest when it is in its initial position. At this time, the voltage drop across the sliding resistor Ry at the first voltage terminal U1 is the highest, and the voltage at the input terminal n of the sliding resistor Ry is also the lowest. When the voltage drop at the input terminal n is high and the voltage at the input terminal h is high, the output terminal o outputs a low level. At this time, the first control switch K1 of the first circuit will not be turned on, meaning that the current opening position of the mesh is consistent with the opening required by the current configuration and does not need to be adjusted.

[0036] When the input terminal n of the sliding resistor Ry is low, the output terminal o is high. Because terminals b and a are both high at this time, terminals d of the second logic gate and f of the third logic gate are either invalid or low. Since terminals a, c, and e are given constant high levels, according to the characteristics of logic gates, terminals k and m must output high levels. The input terminals o, m, and k of the seventh logic gate are all high, so the output terminal r of the seventh logic gate outputs a high level, driving the first control switch K1 to conduct. The forward drive voltage Vcc1 drives the first motor Ma and the second motor Mb to rotate through R4 and R5. When the voltage n of the opening coupling variable resistor Ry and the input terminal h are both high, the first control switch K1 is opened, and the first motor Ma and the second motor Mb stop rotating. At this time, the position of the mesh opening meets the current configuration requirements.

[0037] Similarly, when the input of the tag resistor Rx satisfies the high level of the second logic gate, the b terminal of the first logic gate and the f terminal of the third logic gate must be invalid or low. At this time, the output g of the second logic gate outputs a high level, the output k outputs a low level, the outputs h and l output a low level, and the outputs i and m output a high level. Since the k terminal outputs a low level, and the k terminal serves as the input of the seventh and ninth logic gates, the outputs r and t must be low, and the first control switch K1 and the third control switch K3 will not be turned on.

[0038] When the input terminals n and g of the sliding variable resistor Ry at the initial position of the barrier are both high, the output terminal p must be low. At this time, switch K2 will not be turned on, indicating that the position of the current barrier opening area matches the opening area required by the server configuration and no adjustment is needed. When the input terminal n of the sliding variable resistor Ry at the initial position of the barrier is low, the output terminal p must be high. At this time, p, m, and i of the eighth logic gate circuit are all high, and the output terminal s is high. At this time, switch K2 is turned on, and the positive voltage terminal Vcc1 is connected to the rotating motor circuit through K2 and the motor starts to rotate until the resistance value of the sliding variable resistor Ry built into the barrier just meets the condition that the n terminal and the input terminal g are high. At this time, the second control switch K2 is turned off again, and the barrier opening adjustment is completed.

[0039] The principle is the same when the input of the tag resistor Rx meets the high level of the third logic gate circuit, so it will not be repeated here.

[0040] Here, the server includes three configurations, each corresponding to a unique identifier. When the identifier tag resistor Rx is turned on and its input is at a high level with the first logic gate, it can be understood that the meshing loop has identified the current server configuration as the first configuration 1, requiring a meshing loop with 1 / 3 of the aperture area. When the identifier tag resistor Rx is turned on and its input is at a high level with the second logic gate, it can be understood that the meshing loop has identified the current configuration as the second configuration 2, requiring a meshing loop with 2 / 3 of the aperture area. When the identifier tag resistor Rx is turned on and its input is at a high level with the third logic gate, it can be understood that the meshing loop has identified the current configuration as the third configuration 3, requiring a meshing loop with the full aperture area.

[0041] Because the number of configurations corresponds one-to-one with the number of identification tags, the number of identification tags also corresponds one-to-one with the number of motor control circuits. Therefore, in any situation, there will always be one circuit that matches the identification tag, meaning that the automatic adjustment of the opening area of ​​the mesh will always be effective regardless of the configuration.

[0042] As shown in Table 1 below, in this application, the input terminals a, c, and e of the motor drive circuit are given constant high levels, while the input terminals b, d, and f are variable input terminals depending on the value of Rx, and only one of them is at a high level; terminal n is the input terminal for automatic adjustment of the baffle to identify the variable Ry; r, s, and t are the circuit output terminals; and K1, K2, and K3 are output control switches responsible for controlling the motor's on and off states. Table 1

[0043] Furthermore, the screen adjustment system also includes spring contacts, which are connected to the first motor and the second motor. The variable electronic components are respectively provided with first coupling contacts, second coupling contacts, and third coupling contacts corresponding to the first area, second area, and third area of ​​the screen. When the first circuit, the second circuit, or the third circuit is connected, the first motor and the second motor rotate. When the spring contacts contact the coupling contacts corresponding to the screen area of ​​the connected circuit, the first motor and the second motor stop rotating.

[0044] It is understandable that when the first circuit is turned on, the first motor Ma and the second motor Mb rotate. When the spring contact contacts the first coupling contact corresponding to the first area of ​​the first barrier corresponding to the first circuit, the first motor Ma and the second motor Mb stop rotating. When the second circuit is turned on, the first motor Ma and the second motor Mb rotate. When the spring contact contacts the second coupling contact corresponding to the second area of ​​the second circuit's corresponding baffle, the first motor Ma and the second motor Mb stop rotating. When the third circuit is turned on, the first motor Ma and the second motor Mb rotate. When the spring contact contacts the third coupling contact corresponding to the third area of ​​the corresponding barrier in the third circuit, the first motor Ma and the second motor Mb stop rotating.

[0045] Specifically, when the first circuit, the second circuit, or the third circuit is turned on, the first motor Ma and the second motor Mb are driven to rotate by the corresponding first control switch K1, the second control switch K2, or the third control switch K3 in order to adjust the resistance value of the variable electronic component Ry. When the voltage at the output terminal of the variable electronic component Ry reaches the high level of the corresponding output of the variable electronic component Ry in the logic gate circuit configured for conduction in the server, the rotation of the first motor Ma and the second motor Mb will stop until the barrier reaches the target area of ​​the barrier and the area of ​​the barrier of the server reaches the target opening area of ​​the barrier.

[0046] Specifically, the high level output of the variable electronic element Ry in the first circuit corresponding to the first configuration of the server is greater than the high level output of the variable electronic element Ry in the second circuit corresponding to the second configuration of the server is greater than the high level output of the variable electronic element Ry in the third circuit corresponding to the third configuration of the server.

[0047] Here, the barrier mesh is made of normal, rollable metal sheet, and the entire barrier mesh includes a fully open section, a 2 / 3 open section, and a 1 / 3 open section; for example... Figure 6 As shown, the three parts are interconnected, with two coupling contacts at the upper left corner of each part. A flexible sliding variable resistor is built into the left side of the overall mesh. The coupling contacts are connected to the internal motor drive circuit via spring contacts. In the initial position, the spring contacts and the initial coupling contacts of the built-in flexible sliding variable resistor are connected. When the rotating shaft rotates to the front window with the other two opening areas, the spring contacts and the coupling contacts of the built-in flexible sliding variable resistor are connected again. The sliding resistance value at the current position is obtained through the coupling contacts of the three parts, thereby determining whether the desired opening area has been reached. A first motor Ma and an upper rotating shaft are installed inside the upper edge of the mesh, and a second motor Mb and a lower rotating shaft are installed at the lower edge of the mesh. The automatic adjustment of the front window opening area is achieved by the synchronous upward or downward rotation of the two rotating shafts.

[0048] Furthermore, the motor drive circuit also includes a first control switch K1, a second control switch K2, and a third control switch K3; The first terminal of the first control switch K1 is connected to the output terminal of the first circuit, the second terminal of the first control switch K1 is connected to the positive voltage terminal Vcc1, and the third terminal of the first control switch K1 is connected to the first motor Ma and the second motor Mb respectively. The first terminal of the second control switch K2 is connected to the output terminal of the second circuit, the second terminal of the second control switch K2 is connected to the positive voltage terminal Vcc1, and the third terminal of the second control switch K2 is connected to the first motor Ma and the second motor Mb respectively. The first terminal of the third control switch K3 is connected to the output terminal of the third circuit, the second terminal of the third control switch K3 is connected to the positive voltage terminal Vcc1, and the third terminal of the third control switch K3 is connected to the first motor Ma and the second motor Mb respectively. The control switch is used to control the on and off states of the first motor Ma and the second motor Mb.

[0049] Furthermore, when the resistance value of the tag's electronic components is the first threshold, the server configuration is determined to be the first configuration (smart network card configuration), the first circuit is connected, the target area of ​​the barrier is the first area (1 / 3 opening area), and the target barrier opening area is the first opening barrier area (1 / 3 opening barrier area). When the resistance value of the tag electronic component is the second threshold, the server configuration is determined to be the second configuration (GPU configuration), the second circuit is connected, the target area of ​​the barrier is the second area (2 / 3 opening area), and the target barrier opening area is the second opening barrier area (2 / 3 opening barrier area). When the resistance value of the tag electronic component is the third threshold, the server configuration is determined to be the third configuration (high power CPU), the third circuit is connected, the target area of ​​the barrier is the third area (full opening area), and the opening area of ​​the target barrier is the third opening barrier area (full opening barrier area). Wherein, the first threshold is the resistance value of the first electronic component R1, the second threshold is the sum of the resistance values ​​of the first electronic component R1 and the second electronic component R2, and the third threshold is the sum of the resistance values ​​of the first electronic component R1, the second electronic component R2, and the third electronic component R3.

[0050] Specifically, the technical solution of this application also includes a design scheme for configuration identification labels. If the function of automatically adjusting the opening area of ​​the server mesh according to the server configuration is to be realized, the first problem to be solved is how to identify which server configuration is currently in use and which mesh opening area is required. Therefore, configuration identification labels are designed to mark the configuration.

[0051] For example, such as Figure 7 As shown, this application has three types of mesh with three opening areas (full opening, 2 / 3 opening, and 1 / 3 opening). Correspondingly, three types of labels need to be designed for the above three opening configurations (this application only uses three openings as an example; in reality, this solution can be applied to more scenarios with various opening schemes, so the number of opening schemes means the number of configurations that require these opening schemes, and thus the number of labels that need to be designed). The configuration identification labels mentioned in this application have a pre-embedded conductive resistor on the back. The use of ultra-thin material does not affect the label's pasting function or its overall physical appearance. The resistance values ​​of the pre-embedded resistors on the back of the three labels corresponding to the three configurations are different. After the label is pasted to the designated position on the side of the mesh, the pre-embedded resistor automatically connects to the internal circuit of the mesh. Different label resistance values ​​trigger different conductive circuits inside the mesh to identify the current server configuration.

[0052] This application relates to a design method for a server mesh with automatically adjustable opening area. The mesh appearance is consistent with a normal mesh. The side of the mesh body has a label pasting position, and the area below the label pasting position is connected to the internal motor drive circuit of the mesh. As shown in Table 2 below, to meet heat dissipation requirements, the server includes three different configurations, each requiring a front window mesh with a different opening area. Here, it is specified that the first configuration (1) includes a smart network card, in which case the identification label is displayed by default. The second configuration 2 includes a graphics processing unit (GPU), in which case the identification label is displayed by default. The third configuration (3) includes a high-power processor CPU, in which case an identification label will be displayed by default. The three types of labels have pre-embedded resistors on their backs. The resistors are made of ultra-thin material and do not affect the label's adhesion function or its overall physical appearance. The resistance values ​​of the pre-embedded resistors on the backs of the three types of labels are different. After the label is pasted to the designated position, the pre-embedded resistors automatically connect to the internal logic gate circuit of the barrier in this application.

[0053] Table 2

[0054] The baffle mentioned in this application contains a drive motor, and the adjustment of the front window with different opening areas is achieved by rotating two drive motors on the upper and lower parts of the baffle; such as Figure 5 The diagram shows the internal motor drive circuit of the screen: Rx in the circuit is the pre-embedded resistor for the identification tag. This application takes the front window screen with three different opening areas as an example, so the resistance value of the identification tag also includes three resistance values ​​(in practice, the same number of identification tag resistance values ​​can be freely defined according to the number of screens with different opening areas); the initial voltage U0 is connected to the logic gate circuit after passing through the tag resistor Rx. The high-level voltage required by the three logic gate circuits connected to U0 is different; and it is stipulated that the resistance value of each identification tag pre-embedded resistor can only meet the high level of one logic gate circuit, that is, there is no case where the resistance value of the same identification tag is simultaneously determined to be high level by two logic gate circuits. At this time, the identification tag does not play the role of identification configuration.

[0055] Furthermore, the motor drive circuit also includes a fourth electronic component R4 and a fifth electronic component R5. The fourth electronic component R4 is connected between the first control switch K1, the second control switch K2, the third control switch K3 and the first motor Ma, and the fifth electronic component R5 is connected between the first control switch K1, the second control switch K2, the third control switch K3 and the second motor Mb.

[0056] Furthermore, the motor drive circuit also includes a reset switch K and a sixth electronic component R6. The input terminal of the reset switch K is connected to the reverse voltage terminal Vcc2, and the output terminal of the reset switch K is connected to the first motor Ma and the second motor Mb respectively. The reset switch K is used to drive the first motor Ma and the second motor Mb to rotate in opposite directions, so that the server mesh returns to its initial position. The sixth electronic component R6 is connected between the reverse voltage terminal Vcc2 and the reset switch K.

[0057] Specifically, in response to a server malfunction, the first and second motors are driven to rotate in opposite directions via the reverse voltage terminal, so that the server's mesh is restored to the initial position of the opening. The server failure scenarios include at least one of the following: disassembling the server, reworking the server, or returning the server to the database.

[0058] Specifically, in addition to the label pasting position, the side of the barrier also includes a manual reset switch K. Vcc1 provides a positive voltage, and Vcc2 provides a reverse voltage. When Vcc1 is activated via K1, K2, or K3, it drives the first motor Ma and the second motor Mb to rotate forward to adjust the opening position. Conversely, when the server is disassembled, reworked, or returned to inventory, manually pressing the reset switch K on the side of the barrier activates the reverse voltage terminal Vcc2, driving the motors Ma and Mb to rotate in the reverse direction, returning the barrier to its original opening position. Figure 8 As shown, the voltage drop at the second voltage terminal U2 is the same as the voltage drop at the first voltage terminal U1 after passing through the original position Ry. When the reset switch K is pressed, the motor returns to its original position. Figure 5 The AND gate circuit outputting a high level automatically disconnects switch K; the reset switch K is hidden and embedded, so as not to affect the normal assembly and function of the mesh body.

[0059] Here, the front window shutter mentioned in this application contains a rotating motor and a rotating shaft, which can switch the appearance of the front window shutter by rotation; the server shutter contains various opening areas, which can be freely adjusted between various opening areas by rotating the motor and rotating shaft; the label body is consistent with the appearance and function of a normal label, and has the functions of marking and pasting. The label body is characterized by an ultra-thin conductive resistor embedded in the rear. After the label is pasted to the designated position, the conductive resistor can automatically conduct with the internal circuit of the shutter; it contains a motor drive circuit, which identifies the configuration of the configuration label through a logic gate circuit, and then controls the motor and control switch to turn on and off through the high and low levels of the input and output, thereby realizing the rotation and stopping of the motor; finally, the shutter contains a manual reset button. The button adopts a side-hidden design and does not affect the installation function of the normal appearance. When performing operations such as server replacement, rework, reconfiguration, and return to the warehouse, the appearance of the shutter opening area can be reset.

[0060] In addition, position sensors can be installed on the barrier net, and a controller can be installed in the system. The position sensors are used to provide feedback on the actual opening area of ​​the barrier net. By using the PID (Proportional-Integral-Derivative) control algorithm, the motor speed is dynamically adjusted according to the deviation between the target mesh opening area and the actual mesh opening area, thereby improving response speed and accuracy and reducing oscillation. The motor speed is dynamically adjusted based on the deviation between the target mesh opening area and the actual mesh opening area using a PID control algorithm, including: The target mesh opening area is determined by the resistance value of the electronic components on the tag, and the current opening area of ​​the mesh is read by a position sensor (such as a Hall sensor or a photoelectric sensor). The difference between the target mesh opening area and the actual mesh opening area is taken as the deviation e(t); Obtain the proportional term Kp, the integral term Ki, the differential term Kd, and the current time t; The control quantity u(t) is calculated using the PID control algorithm formula: u(t)=Kp·e(t)+Ki·∫e(t)dt+Kd·de(t) / dt; The control quantity u(t) is converted into a PWM duty cycle, and the speed and direction of the first motor and the second motor are controlled by the PWM duty cycle; The PID control algorithm is repeated according to a preset time period (e.g., 10ms) to dynamically adjust the motor speed based on the deviation between the target mesh opening area and the actual mesh opening area until the deviation e(t) approaches zero.

[0061] Finally, interlock protection and overcurrent and overtemperature protection are added to the logic gate circuit to prevent abnormal motor operation.

[0062] The integral term in the PID control algorithm continuously accumulates historical errors, driving the motor to continue fine-tuning until the actual area perfectly matches the target area. This eliminates the steady-state error problem common in traditional switching control, where the area is just slightly off target, allowing the opening area of ​​the barrier to converge precisely to the target value. The proportional term enables the motor to output a larger driving force when the deviation is large, allowing the barrier to move quickly. As the deviation decreases, the output automatically decreases, and the motor decelerates. This allows the system to respond quickly to changes in the target without overshooting due to inertia when approaching the target, significantly shortening the overall adjustment time. The derivative term can sense the trend of error changes. When the barrier rapidly approaches the target value, the derivative term generates a reverse damping force, braking in advance and preventing the barrier from repeatedly oscillating back and forth after passing the target position, ensuring the barrier can smoothly and in one go reach the target position.

[0063] This application embodiment takes three types of opening areas for the front window shutters as examples. In reality, more types of opening areas can be freely adjusted according to the actual heat dissipation scenario. The principle is the same, and only the corresponding identification tags and identification circuits need to be added. This application embodiment takes front window mesh with different opening areas as examples. Theoretically, any front window mesh with different patterns, logos, appearances, colors, etc. can be freely adjusted through this solution.

[0064] The embodiments of this application mention the opening area of ​​the front window mesh as a full opening, a 1 / 3 opening, and a 2 / 3 opening, but in practice it can be a 1 / 2 opening, an irregular opening, etc., which does not conflict with this solution; the front window mesh rotation shaft of the embodiments of this application adopts an upper and lower structure, but in practice it can also adopt a left and right structure according to the requirements, which is the same as the principle of this application.

[0065] The beneficial effects of the technical solutions provided in this application are: This application enables automatic adjustment of the opening area of ​​the barrier net, reducing the repeated development and procurement of barrier nets with different opening areas, lowering R&D costs, and shortening the R&D cycle.

[0066] The technical solution of this application makes the later configuration and maintenance of servers more convenient and intelligent. When the core components of the server are modified or replaced, it is not necessary to replace the new mesh with a new mesh with a suitable opening area due to heat dissipation issues; it is only necessary to replace the identification label of the mesh with the new configuration to achieve automatic adaptation of the opening area.

[0067] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods according to the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method.

[0068] Any of the components, modules, units, parts, methods, and operations described herein can be implemented using software, firmware, hardware (e.g., fixed logic circuitry), manual processing, or any combination thereof. Alternatively or additionally, any functionality described herein can be executed at least in part by one or more hardware logic components, such as, but not limited to, a central processing unit (CPU), a field-programmable gate array (FPGA), an application-specific integrated circuit (ASIC), an application-specific standard product (ASSP), a system-on-a-chip (SoC), a complex programmable logic device (CPLD), a microprocessor (MCU), etc. The terms "system," "computing device," or "apparatus" as used herein encompass various means, devices, and machines for processing data, including, for example, one or more programmable processors, computers, SoCs, or combinations thereof. The apparatus may also include code that creates an execution environment for the computer program in question, such as code constituting processor firmware, a protocol stack, a database management system, an operating system, a cross-platform runtime environment, a virtual machine, or one or more combinations thereof. The aforementioned computer program (also known as a program, software, software application, app, script, or code) can be written in any form of programming language, including compiled or interpreted languages, declarative or procedural languages, and can be deployed in any form, including as a standalone program or as a module, component, subroutine, object, or other unit suitable for a computing environment.

[0069] Those skilled in the art will further recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of both. To clearly illustrate the interchangeability of hardware and software, the components and steps of the various examples have been generally described in terms of functionality in the foregoing description. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0070] The above provides a detailed description of a screen adjustment system provided in this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are merely for the purpose of helping to understand the method and core ideas of this application. It should be noted that those skilled in the art can make various improvements and modifications to this application without departing from its principles, and these improvements and modifications also fall within the protection scope of this application.

Claims

1. A screen adjustment system, characterized in that, The screen adjustment system includes a motor drive circuit, an upper rotating shaft, a lower rotating shaft, and a screen. The screen includes a first region and a second region. The motor drive circuit includes a first circuit, a second circuit, tag electronic components, variable electronic components, a first motor, and a second motor. The output terminals of the tag electronic components are connected to the first circuit and the second circuit, respectively; the output terminals of the variable electronic components are connected to the first circuit and the second circuit, respectively. The first circuit and the second circuit are each connected in parallel with the first motor and the second motor, respectively, and the first motor and the second motor are grounded simultaneously; The first motor is connected to the upper rotating shaft, and the second motor is connected to the lower rotating shaft; the baffle is disposed between the upper rotating shaft and the lower rotating shaft. The tag electronic component is used to determine the conduction selection of the first circuit and the second circuit. The variable electronic component is used to control the first motor and the second motor. The first motor and the second motor are used to drive the upper rotating shaft and the lower rotating shaft to rotate to the corresponding area of ​​the baffle, so as to adjust the opening area of ​​the baffle.

2. The barrier adjustment system according to claim 1, characterized in that, The first circuit includes a first logic gate circuit, a fourth logic gate circuit, a seventh logic gate circuit, and a first electronic component. The output terminal of the first electronic component is connected to the first input terminal of the first logic gate circuit, the input terminal of the first electronic component is connected to the voltage input terminal, the output terminal of the tag electronic component is connected to the second input terminal of the first logic gate circuit, the first output terminal of the first logic gate circuit is connected to the first input terminal of the fourth logic gate circuit, the output terminal of the fourth logic gate circuit is connected to the first input terminal of the seventh logic gate circuit, and the output terminal of the seventh logic gate circuit is connected in parallel with the first motor and the second motor. The second input terminal of the first logic gate circuit serves as the input terminal of the first loop, and the output terminal of the seventh logic gate circuit serves as the output terminal of the first loop.

3. The barrier adjustment system according to claim 2, characterized in that, The second circuit includes a second logic gate circuit, a fifth logic gate circuit, an eighth logic gate circuit, and a second electronic component. The output terminal of the second electronic component is connected to the first input terminal of the second logic gate circuit, the input terminal of the second electronic component is connected to the first electronic component, the output terminal of the tag electronic component is connected to the second input terminal of the second logic gate circuit, the first output terminal of the second logic gate circuit is connected to the first input terminal of the fifth logic gate circuit, the output terminal of the fifth logic gate circuit is connected to the first input terminal of the eighth logic gate circuit, and the output terminal of the eighth logic gate circuit is connected in parallel with the first motor and the second motor. The second input terminal of the second logic gate circuit serves as the input terminal of the second loop, and the output terminal of the eighth logic gate circuit serves as the output terminal of the second loop.

4. The barrier adjustment system according to claim 3, characterized in that, The barrier also includes a third region, the motor drive circuit also includes a third circuit, the output terminal of the tag electronic component is connected to the third circuit, the output terminal of the variable electronic component is connected to the third circuit, and the third circuit is connected in parallel with the first motor and the second motor. The third circuit includes a third logic gate circuit, a sixth logic gate circuit, a ninth logic gate circuit, and a third electronic component. The output terminal of the third electronic component is connected to the first input terminal of the third logic gate circuit, the input terminal of the third electronic component is connected to the second electronic component, the output terminal of the tag electronic component is connected to the second input terminal of the third logic gate circuit, the first output terminal of the third logic gate circuit is connected to the first input terminal of the sixth logic gate circuit, the output terminal of the sixth logic gate circuit is connected to the first input terminal of the ninth logic gate circuit, and the output terminal of the ninth logic gate circuit is connected in parallel with the first motor and the second motor. The second input terminal of the third logic gate circuit serves as the input terminal of the third loop, and the output terminal of the ninth logic gate circuit serves as the output terminal of the third loop.

5. The barrier adjustment system according to claim 4, characterized in that, The output terminal of the variable electronic element is connected to the second input terminal of the fourth logic gate circuit, the fifth logic gate circuit, and the sixth logic gate circuit, respectively. The second output terminal of the first logic gate circuit is connected to the third input terminal of the eighth logic gate circuit and the ninth logic gate circuit, respectively; the second output terminal of the second logic gate circuit is connected to the third input terminal of the seventh logic gate circuit and the second input terminal of the ninth logic gate circuit, respectively; the second output terminal of the third logic gate circuit is connected to the second input terminal of the seventh logic gate circuit and the eighth logic gate circuit.

6. The barrier adjustment system according to claim 4, characterized in that, The mesh adjustment system also includes spring contacts, which are connected to the first motor and the second motor. The variable electronic component is provided with a first coupling contact, a second coupling contact, and a third coupling contact corresponding to the first area, the second area, and the third area of ​​the mesh, respectively. When the first circuit, the second circuit, or the third circuit is connected, the first motor and the second motor rotate. When the spring contacts contact the coupling contacts corresponding to the mesh area of ​​the connected circuit, the first motor and the second motor stop rotating.

7. The barrier adjustment system according to claim 4, characterized in that, The motor drive circuit also includes a first control switch, a second control switch, and a third control switch. The first terminal of the first control switch is connected to the output terminal of the first circuit, the second terminal of the first control switch is connected to the positive voltage terminal, and the third terminal of the first control switch is connected to the first motor and the second motor respectively. The first terminal of the second control switch is connected to the output terminal of the second circuit, the second terminal of the second control switch is connected to the positive voltage terminal, and the third terminal of the second control switch is connected to the first motor and the second motor respectively. The first terminal of the third control switch is connected to the output terminal of the third circuit, the second terminal of the third control switch is connected to the positive voltage terminal, and the third terminal of the third control switch is connected to the first motor and the second motor respectively. The control switch is used to control the on and off states of the first motor and the second motor.

8. The barrier adjustment system according to claim 4, characterized in that, When the resistance value of the tag electronic component is a first threshold, the server configuration is determined to be a first configuration, the first circuit is connected, the target area of ​​the barrier is a first area, and the opening area of ​​the target barrier is the first opening area of ​​the barrier. When the resistance value of the tag electronic component is the second threshold, the server configuration is determined to be the second configuration, the second circuit is connected, the target area of ​​the barrier is the second area, and the opening area of ​​the target barrier is the second opening area of ​​the barrier. When the resistance value of the tag electronic component is the third threshold, the server configuration is determined to be the third configuration, the third circuit is connected, the target area of ​​the barrier is the third area, and the opening area of ​​the target barrier is the third opening area of ​​the barrier. Wherein, the first threshold is the resistance value of the first electronic component, the second threshold is the sum of the resistance values ​​of the first electronic component and the second electronic component, and the third threshold is the sum of the resistance values ​​of the first electronic component, the second electronic component, and the third electronic component.

9. The barrier adjustment system according to claim 7, characterized in that, The motor drive circuit also includes a fourth electronic component and a fifth electronic component. The fourth electronic component is connected between the first control switch, the second control switch, the third control switch and the first motor, and the fifth electronic component is connected between the first control switch, the second control switch, the third control switch and the second motor.

10. The barrier adjustment system according to claim 1, characterized in that, The motor drive circuit also includes a reset switch and a sixth electronic component. The input terminal of the reset switch is connected to the reverse voltage terminal, and the output terminal of the reset switch is connected to the first motor and the second motor respectively. The reset switch is used to drive the first motor and the second motor to rotate in opposite directions, so that the server net returns to its initial position. The sixth electronic component is connected between the reverse voltage terminal and the reset switch.

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