Lifting window pre-tightening anti-pinch operation method and device, access medium and equipment

Abstract

The invention provides a pre-tightening anti-pinch operation method and device for a lifting window, an access medium and equipment. When a movable sash meets a certain condition, the speed of the movable sash can be reduced to 0 or a certain low speed Vb, the speed is kept for a period of time T, and then the speed Vc is adjusted to continue to be reduced until the movable sash is completely opened. And it is ensured that the user can respond and move away the hands within the time T, and therefore the purpose that the user is effectively prevented from being pinched in the operation process of the movable fan is achieved.

Description

Technical Field

[0001] The present application relates to the field of lifting windows, and in particular to a lifting window pre-tightening and anti-pinch operation method, device, storage and access medium and equipment. Background Art

[0002] In modern architectural design, lift windows are widely used in various residential and commercial buildings due to their elegant appearance and good ventilation performance. Traditional lift window designs often focus on their ease of operation and sealing performance, but the consideration of user safety is relatively insufficient. Especially when the window is lowered, if the user's hand accidentally reaches between the window sash and the window frame, it is very easy to get a hand-caught accident, posing a serious threat to the user's life safety. Therefore, how to improve the safety of users while ensuring the normal function of the window has become an urgent problem to be solved in the current lift window design.

[0003] In order to solve the safety hazards of lifting windows, some improvement measures have appeared in the market. Among them, a common method is to add an infrared anti-pinch sensor to the movable sash of the lifting window. This sensor uses infrared counter-radiation to monitor whether there is any foreign object in the space between the window sash and the window frame in real time. Once a foreign object is detected, the activity of the window sash is immediately suspended to prevent the occurrence of finger pinching accidents. Another method is to use an anti-pinch rubber strip sensor to determine whether a foreign object is pinched by identifying the pressure change on the rubber strip. However, both solutions have some shortcomings. Although infrared anti-pinch sensors and anti-pinch rubber strip sensors can improve the safety of movable sashes to a certain extent, they still have limitations in leaving time for people to react. Due to its rapid reaction speed, infrared anti-pinch sensors may not provide users with sufficient reaction time; while anti-pinch rubber strip sensors may have more advantages in leaving reaction time, but their performance is restricted by the sensitivity of the rubber strip and the response speed of the sensor. In addition, the cost of the sensor is relatively high, which increases the overall cost of the product.

[0004] Therefore, it is necessary to provide an operation method, device, access medium and equipment that can effectively prevent users from being pinched during the operation of a movable fan. Summary of the invention

[0005] In view of this, it is necessary to provide an operation method, device, access medium and equipment for effectively preventing users from being pinched during operation of a lifting window, so as to solve the above problems.

[0006] The embodiment of the present application provides a method for pre-tightening and anti-pinch operation of a lifting window, wherein the lifting window comprises a window frame and a movable sash that is lifted and lowered in the window frame, wherein an armrest is disposed adjacent to the indoor side of the movable sash, and when the movable sash descends and the user's hand is placed on the armrest and extended along the outdoor side, the method comprises:

[0007] The vertical distance between the upper window frame of the movable fan and the handrail is recorded as L1, the horizontal distance between the upper window frame and the handrail is recorded as L2, the vertical safety distance between the upper window frame and the user's hand is recorded as D, and the descending speed of the movable fan is recorded as Va; satisfying the relationship:

[0008] 5mm≤L2≤20mm;

[0009] 10mm≤D≤50mm;

[0010] When the relationship is satisfied:

[0011] When L1≤D,

[0012] The speed Va of the movable fan is reduced to 0 or Vb, and the duration of being at 0 or Vb is T. After time T, the movable fan is adjusted to a speed Vc and continues to descend toward the handrail to fully open the movable fan.

[0013] In at least one embodiment of the present application, when the speed Va of the active fan during descent is reduced to 0, the time during which the active fan is continuously at 0 is T1, and T1 satisfies the relationship:

[0014] 1s≤TI≤3s.

[0015] In at least one embodiment of the present application, after the time T1 ends, the movable fan continues to descend toward the handrail table at a speed Vc1, and satisfies the relationship:

[0016] 0.01Va≤Vc1≤0.1Va.

[0017] In at least one embodiment of the present application, when the speed Va of the movable fan during descent is reduced to Vb1, the movable fan rises away from the handrail at the speed Vb1, and the movable fan continues to rise for T2, and satisfies the relationship:

[0018] 0.06Va≤Vb1≤0.1Va.

[0019] In at least one embodiment of the present application, after time T2 ends, the movable fan continues to descend toward the handrail table at a speed Vc2, and satisfies the relationship:

[0020] 0.01Va≤Vc2<0.06Va.

[0021] In at least one embodiment of the present application, the duration of the speed Vb1 of the active fan is T2, and T2 satisfies the relationship:

[0022] 2s≤T2≤5s.

[0023] An embodiment of the present application provides a lifting window device, which is applied to any one of the lifting window pre-tightening and anti-pinch operation methods, and is characterized in that the device comprises:

[0024] The acquisition module is used to obtain multiple parameter data values ​​of the active fan.

[0025] An analysis module, used for performing data analysis on multiple parameter data values ​​of the active fan;

[0026] The movement control module is used to control the movement direction of the movable fan according to the data analysis of the movable fan.

[0027] In at least one embodiment of the present application, the acquisition module includes:

[0028] A timing unit for recording the moving time of the movable fan;

[0029] The speed detection unit is used to detect the speed change of the movable fan.

[0030] An embodiment of the present application provides a computer-readable storage medium storing a computer program. When the computer program is executed by a processor, the processor executes the steps of any one of the methods.

[0031] An embodiment of the present application provides a computer device, including a memory and a processor, wherein the memory stores a computer program, and when the computer program is executed by the processor, the processor executes the steps of any one of the methods.

[0032] The above-mentioned method, device, access medium and equipment for pre-tightening and anti-pinch operation of a lifting window are provided. When the movable fan meets certain conditions, the speed of the movable fan will be reduced to 0 or a lower speed Vb, and it will last for a period of time T, and then adjusted to the speed Vc to continue to decrease until it is fully opened. It is ensured that the user can react and remove the hand within the time T, thereby achieving the purpose of effectively preventing the user from being pinched during the operation of the lifting window. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a front view of the movable fan when it is closed in the embodiment of the present application.

[0034] Figure 2 This is a front view of the movable fan when it is opened in the embodiment of the present application.

[0035] Figure 3 for Figure 1 Cross-section view of AA.

[0036] Figure 4 This is a cross-sectional view of the movable fan when descending in the embodiment of the present application.

[0037] Figure 5for Figure 2 Cross-section of the BB.

[0038] Figure 6 This is a system block diagram of a movable fan device in an embodiment of the present application.

[0039] Figure 7 is a structural block diagram of a computer device in an embodiment.

[0040] Main component symbols

[0041] 10. Movable sash; 11. Upper window frame; 20. Handrail; 30. Window frame; 40 Lifting window;

[0042] 200. A lifting window device; 210. An acquisition module; 220. An analysis module; 230. A movement control module; 211. A timing unit; 212. A speed detection unit. DETAILED DESCRIPTION

[0043] The embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0044] It should be noted that when a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a central component at the same time. When a component is considered to be "located on" another component, it may be directly located on the other component or there may be a central component at the same time. The terms "top", "bottom", "upper", "lower", "left", "right", "front", "back", and similar expressions used herein are for illustrative purposes only.

[0045] The embodiment of the present application provides a method for pre-tightening and anti-pinch operation of a lifting window, wherein the lifting window comprises a window frame and a movable sash that is lifted and lowered in the window frame, and an armrest is disposed adjacent to the indoor side of the lifting window. When the movable sash is lowered and the user's hand is placed on the armrest and extended along the outdoor side, the method comprises:

[0046] The vertical distance between the upper window frame of the movable fan and the handrail is recorded as L1, the horizontal distance between the upper window frame and the handrail is recorded as L2, the vertical safety distance between the upper window frame and the user's hand is recorded as D, and the descending speed of the movable fan is recorded as Va; satisfying the relationship:

[0047] 5mm≤L2≤20mm;

[0048] 10mm≤D≤50mm;

[0049] When the relationship is satisfied:

[0050] When L1≤D,

[0051] The speed Va of the movable fan is reduced to 0 or Vb, and the duration of being at 0 or Vb is T. After time T, the movable fan is adjusted to a speed Vc and continues to descend toward the handrail to fully open the movable fan.

[0052] The above-mentioned method for pre-tightening and anti-pinch operation of a lifting window is that when the movable sash meets certain conditions, the speed of the movable sash will be reduced to 0 or a lower speed Vb, and will last for a period of time T, and then adjusted to the speed Vc to continue to decrease until it is fully opened. It is ensured that the user can react and remove the hand within the time T, thereby achieving the purpose of effectively preventing the user from being pinched during the operation of the movable sash.

[0053] Some embodiments of the present application are described in detail below in conjunction with the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0054] according to Figure 1-Figure 7 In an embodiment of the present application, a pre-tightening and anti-pinch operation method for a lifting window 40 is provided. The lifting window 40 includes a window frame 30 and a movable fan 10 that is lifted and lowered in the window frame 30. A handrail 20 is adjacently arranged on the indoor side of the lifting window 40. When the movable fan 10 descends, specifically, the upper window frame 11 of the movable fan 10 descends toward the handrail 20. When the user's hand is placed on the handrail 20 and extended along the outdoor side, when the upper window frame 11 descends close to the handrail 20, the upper window frame 11 clamps the hand placed on the handrail 20.

[0055] The method comprises:

[0056] The vertical distance between the upper window frame 11 of the movable fan 10 and the handrail 20 is recorded as L1, the horizontal distance between the upper window frame 11 and the handrail 20 is recorded as L2, the vertical safety distance between the upper window frame 11 and the user's hand is recorded as D, and the descending speed of the movable fan 10 is recorded as Va; the relationship is satisfied:

[0057] 5mm≤L2≤20mm;

[0058] 10mm≤D≤50mm;

[0059] When the relationship is satisfied:

[0060] When L1≤D,

[0061] The speed Va of the active fan 10 is reduced to 0 or Vb, and the duration of being at 0 or Vb is T;

[0062] After the time T, the movable fan 10 is adjusted to the speed Vc and continues to descend toward the handrail platform 20 to fully open the movable fan 10.

[0063] Specifically, L1 is the distance between the upper window frame 11 and the handrail 20 when the movable fan 10 descends. L2 in the horizontal direction is the distance to the edge of the upper window frame 11, and is the distance between the handrail 20 and the glass of the movable fan 10, so that the hand can be extended into the distance L2 in the horizontal direction. When the upper window frame 11 descends, the edge of the upper window frame 11 will pinch the user's hand. The safety distance is the minimum safety distance between the upper window frame 11 and the handrail 20 in the vertical direction. When the movable fan 10 descends and approaches the handrail 20, if the user's hand is accidentally extended and placed on the handrail 20, when the upper window frame 11 moves to a safe distance, the movable fan 10 responds with an anti-pinch reaction to avoid directly pinching the user's hand, thereby avoiding potential pinching risks.

[0064] The minimum value of the safety distance D is 10mm, which is the thinnest part of the user's finger; the maximum value is 50mm, which is the thickest part of the user's hand. The value of the safety distance can be adjusted within this range to protect the safety distance of fingers of different thicknesses in different groups of people.

[0065] When the distance between the upper window frame 11 and the handrail 20 satisfies the safety distance L1≤D, the movable fan 10 makes an anti-pinch reaction within the safety distance, which can ensure that the movable fan 10 decelerates or stops in time when it approaches the handrail 20 to avoid pinching the user's hand. After deceleration or stopping, the movable fan 10 maintains this state for a time T. By setting a reasonable T time, it can ensure that the user has enough time to remove his hand from the handrail 20 to avoid being pinched. After T time, the speed at which the movable fan 10 continues to descend is adjusted to Vc, which can ensure that the movable fan 10 can continue to operate smoothly after confirming the safety of the user until the movable fan 10 is fully opened.

[0066] Embodiment 1: When the speed Va of the movable fan 10 decreases to 0, the time T1 of the movable fan 10 remaining at 0 is satisfied. 1s≤TI≤3s.

[0067] Specifically, the speed Va of the active fan 10 is decelerated to 0 and is in a stagnant state within the time T1. A too long T1 may cause the waiting time of the active fan 10 to be too long, affecting the user experience; a too short T1 may not give the user enough time to react. Therefore, by setting a reasonable value range, safety and user experience can be balanced.

[0068] During the T1 time, the user has enough time to realize the potential danger and remove the hand from the position that may be caught in the safety zone. After the T1 time is over, the movable fan 10 will resume movement and continue to descend until it is fully opened.

[0069] In a specific embodiment, after the time T1 ends, the movable fan 10 continues to descend toward the handrail 20 at a speed Vc1, and the relationship is satisfied: 0.01Va≤Vc1≤0.1Va.

[0070] The speed Vc1 is a deceleration process. After the movable fan 10 stays for T1 time, there is a safety distance D between the upper window frame 11 and the handrail 20. Within this distance, the movable fan 10 continues to descend on the basis of descending at the speed Va, and reduces the speed to 0.01Va≤Vc1≤0.1Va. During this deceleration period, the user is given time to remove his hands from the handrail 20. The movable fan 10 continues to descend to the handrail 20 at the speed Vc1 until the movable fan 10 is fully opened.

[0071] Embodiment 2: When the speed Va of the movable fan 10 during descent is reduced to Vb1, the movable fan 10 rises at the speed Vb1 away from the handrail 20, and the movable fan 10 continues to rise for T2, and satisfies the relationship: 0.06Va≤Vb1≤0.1Va.

[0072] Specifically, when the movable fan 10 descends at a speed Va and the upper window frame 11 of the movable fan 10 descends to the safety area D, the speed of the movable fan 10 is reduced to Vb1, which is lower than the speed of Va, and the movable fan 10 is moved in a direction away from the handrail 20, that is, the movable fan 10 rises, and a distance is formed when rising, so that the upper window frame 11 avoids pinching caused by contact with the hand, and reserves space for the user to withdraw from the handrail 20, so as to avoid the hand being stuck by the upper window frame 11 and unable to be pulled out of the handrail 20.

[0073] When the speed drops to Vb1, the movable fan 10 no longer continues to descend, but starts to move in the opposite direction at the speed Vb1 for a time T2, that is, it rises in the direction away from the handrail 20 for T2. This provides additional flexibility for the movable fan 10. For example, when the user realizes that an object or person may be caught, the system can respond quickly and stop descending, while starting the ascending action to avoid injury. The value range of the speed Vb1 is limited to ensure that the speed change is within the controllable range and avoid the safety risks that may be caused by sudden changes in speed.

[0074] In a specific embodiment, after the time T2 ends, the movable fan 10 continues to descend toward the handrail 20 at a speed Vc2, and the relationship is satisfied: 0.01Va≤Vc2<0.06Va.

[0075] Specifically, after the time T2 is over, the movable fan 10 rises at a speed Vb1 in a direction away from the handrail 20 for a period of time (T2), and then prepares to descend again in the direction of the handrail 20. The movable fan 10 continues to descend toward the handrail 20 at a speed Vc2. This is a new action of the movable fan 10 after T2 time, and continues to complete the opening process. During the descent process, the speed Vc2 is equal to the speed Vb2 at the end of the previous ascent, ensuring the continuity of the speed change. 0.01Va≤Vc2<0.06Va limits the speed range of Vb2 to ensure that it is neither too fast nor too slow, ensuring both safety and efficiency.

[0076] In a specific embodiment, the duration of the speed Vb1 of the movable fan 10 is T2, and T2 satisfies the relationship: 2s≤T2≤5s.

[0077] Specifically, the speed Vb1 of the movable fan 10 is a temporary rising speed for the safety of the user. The duration T2 can be the length of time that the movable fan 10 can rise at the speed Vb1.

[0078] The relationship is satisfied: 2s≤T2≤5s. The time range of T2 is specifically limited to ensure that users have enough time to realize the potential risks and respond, such as withdrawing their hands or taking other protective measures. If the T2 time is too short, the safety mechanism may be triggered due to a brief misoperation or interference, resulting in unnecessary pauses or reverse movements. A reasonable T2 time can reduce the occurrence of such false alarms.

[0079] A movable fan 10 device in an embodiment of the present application is applied to any one of the movable fan 10 pre-tightening and anti-pinch operation methods described above, and the device includes:

[0080] The acquisition module 210 is used to acquire multiple parameter data values ​​of the active fan 10 .

[0081] The analysis module 220 is used to perform data analysis on multiple parameter data values ​​of the active fan 10;

[0082] The movement control module 230 is used to control the movement direction of the movable fan 10 according to the data analysis of the movable fan 10 .

[0083] Specifically, the acquisition module 210 acquires multiple parameter data values ​​of the movable fan 10, including but not limited to the vertical distance L1 between the upper window frame 11 of the movable fan 10 and the handrail 20, the horizontal distance L2, the vertical safety distance D between the upper window frame 11 and the user's hand, and the descending speed Va of the movable fan 10.

[0084] The analysis module 220 performs data analysis on the multiple parameter data values ​​provided by the acquisition module 210 to determine whether the current operating state of the active fan 10 satisfies the pre-tightening and anti-pinch conditions (i.e., L1≤D, and L2 and D are within the specified range). At the same time, the module is also responsible for calculating parameters such as the speed adjustment value Vb (when the speed needs to be reduced) and the duration T.

[0085] The movement control module 230 controls the movement direction, speed and duration of the movable sash 10 according to the data analysis results of the analysis module 220. When the pre-tightening anti-pinch condition is met, the movement control module 230 will reduce the speed of the movable sash 10 to 0 or Vb and continue for a period of time T; then, adjust the speed to Vc and continue to decrease until the upper window frame 11 contacts the handrail 20 to fully open the movable sash 10.

[0086] Furthermore, the acquisition module 210 collects multiple parameter data values ​​of the movable fan 10 in real time, including L1, L2, D and Va. The analysis module 220 processes and analyzes the collected parameter data to determine whether the current operating state of the movable fan 10 meets the pre-tightening and anti-pinch conditions. If the pre-tightening and anti-pinch conditions are met, the mobile control module 230 will reduce the speed of the movable fan 10 to 0 or Vb and continue for a period of time T. After the time T is over, the mobile control module 230 will adjust the speed of the movable fan 10 to Vc and continue to descend toward the handrail 20 until the upper window frame 11 contacts the handrail 20 and the movable fan 10 is fully opened. Precise control of the movement of the movable fan 10 and the pre-tightening and anti-pinch functions are achieved. This control method not only improves the safety and reliability of the system, but also provides users with a more convenient and comfortable use experience.

[0087] In a specific embodiment, the acquisition module 210 includes:

[0088] A timing unit 211, used to record the movement time of the movable fan 10;

[0089] The speed detection unit 212 is used to detect the speed change of the movable fan 10.

[0090] Specifically, the timing unit 211 is responsible for recording the movement time of the movable fan 10, including the time when the movable fan 10 starts to move, the time when the movement ends, and the time at a specific speed. This information is crucial for subsequent data analysis and motion control. The speed detection unit 212 is used to monitor the speed change of the movable fan 10 in real time, including the initial speed of the movable fan 10, the speed change during the acceleration process, and the speed reduction at a specific stage (such as the pre-tightening anti-pinch stage).

[0091] The vertical distance between the upper window frame 11 of the movable fan 10 and the handrail 20 is recorded as L1, the horizontal distance between the upper window frame 11 and the handrail 20 is recorded as L2, the vertical safety distance between the upper window frame 11 and the user's hand is recorded as D, and the descending speed of the movable fan 10 is recorded as Va; the relationship is satisfied:

[0092] 5mm≤L2≤20mm;

[0093] 10mm≤D≤50mm;

[0094] When the relationship is satisfied:

[0095] When L1≤D,

[0096] The speed Va of the active fan 10 is reduced to 0 or Vb, and the duration of being at 0 or Vb is T;

[0097] After time T, the movable fan 10 is adjusted to the speed Vc and continues to descend toward the handrail 20 to fully open the movable fan 10. Before starting to move, the system initializes relevant parameters through the timing unit 211 and the speed detection unit 212, such as recording the initial time, detecting the initial speed, etc. During the movement of the movable fan 10, the timing unit 211 continues to record the time, and the speed detection unit 212 monitors the speed change in real time. When specific conditions are met (5mm≤L2≤20mm, 10mm≤D≤50mm, L1≤D), the system analyzes the data collected by the acquisition module 210 to determine whether the pre-tightening anti-pinch mechanism needs to be triggered.

[0098] If the pre-tightening anti-pinch condition is met, the system reduces the speed of the movable fan 10 to 0 or Vb through the mobile control module 230 and keeps it for a period of time T (recorded by the timing unit 211). Afterwards, the speed is adjusted to Vc and continues to decrease until the movable fan 10 is fully opened.

[0099] In one embodiment, a computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the processor is caused to perform the steps of any one of the methods.

[0100] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program, and the program can be stored in a non-volatile computer-readable storage medium. When the program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to memory, storage, database or other media used in the embodiments provided in this application can include non-volatile and / or volatile memory. Non-volatile memory may include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM) or flash memory. Volatile memory may include random access memory (RAM) or external cache memory. As an illustration and not limitation, RAM is available in many forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).

[0101] In one embodiment, a computer device includes a memory and a processor, wherein the memory stores a computer program, and when the computer program is executed by the processor, the processor executes the steps of any one of the methods.

[0102] The method includes: the distance between the upper window frame 11 of the movable fan 10 and the handrail 20 in the vertical direction is recorded as L1, the distance between the upper window frame 11 and the handrail 20 in the horizontal direction is recorded as L2, the safety distance between the upper window frame 11 and the user's hand in the vertical direction is recorded as D, and the descending speed of the movable fan 10 is recorded as Va; satisfying the relationship: 5mm≤L2≤20mm; 10mm≤D≤50mm;

[0103] When the relation: L1≤D is also satisfied, the speed Va of the movable fan 10 is reduced to 0 or Vb, and the duration of being at 0 or Vb is T;

[0104] After the time T, the movable fan 10 is adjusted to the speed Vc and continues to descend toward the handrail platform 20 to fully open the movable fan 10.

[0105] The computer device may be a terminal or a server. The computer device includes a processor, a memory and a network interface connected via a system bus. The memory includes a non-volatile storage medium and an internal memory. The non-volatile storage medium of the computer device stores an operating system and may also store a computer program. When the computer program is executed by the processor, the processor may implement a method for pre-tightening and anti-pinch operation of the lifting window 40. The internal memory may also store a computer program. When the computer program is executed by the processor, the processor may implement a method for pre-tightening and anti-pinch operation of the lifting window 40. Those skilled in the art will appreciate that Figure 7 The structure shown in the figure is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than those shown in the figure, or combine certain components, or have a different arrangement of components.

[0106] Thus, the above provides a method, device, access medium and equipment for pre-tightening and anti-pinch operation of the lifting window 40, when the movable fan 10 meets certain conditions, the speed of the movable fan 10 will be reduced to 0 or a lower speed Vb, and will last for a period of time T, and then adjusted to the speed Vc to continue to decrease until it is fully opened. It is ensured that the user can react and remove the hand within the time T, thereby achieving the purpose of effectively preventing the user from being pinched during the operation of the movable fan 10.

[0107] The above is only an implementation method of the present application. It should be pointed out that a person skilled in the art can make improvements without departing from the creative concept of the present application, but these improvements are within the scope of protection of the present application.

Claims

1. A method for pre-tightening and anti-pinch operation of a lifting window, wherein the lifting window comprises a window frame and a movable sash that is lifted and lowered in the window frame, wherein a handrail is disposed adjacent to the indoor side of the lifting window, and when the movable sash is lowered and the user's hand is placed on the handrail and extended along the outdoor side, the method is characterized in that: The method comprises: The vertical distance between the upper window frame of the movable fan and the handrail is recorded as L1, the horizontal distance between the upper window frame and the handrail is recorded as L2, the vertical safety distance between the upper window frame and the user's hand is recorded as D, and the descending speed of the movable fan is recorded as Va; satisfying the relationship: 5mm≤L2≤20mm; 10mm≤D≤50mm; When the relationship is satisfied: When L1≤D, The speed Va of the movable fan is reduced to 0 or Vb, and the duration of being at 0 or Vb is T. After time T, the movable fan is adjusted to a speed Vc and continues to descend toward the handrail to fully open the movable fan.

2. A lifting window pre-tightening and anti-pinch operation method according to claim 1, characterized in that ,When the speed Va of the active fan decreases to 0, the time that the active fan remains at 0 is T1, and T1 satisfies the relationship: 1s≤TI≤3s.

3. A lifting window pre-tightening and anti-pinch operation method according to claim 2, characterized in that ,When time T1 is over, the movable fan continues to descend toward the handrail at a speed Vc1, and satisfies the relationship: 0.01Va≤Vc1≤0.1Va.

4. A lifting window pre-tightening and anti-pinch operation method according to claim 1, characterized in that When the speed Va of the movable fan when descending is reduced to Vb1, the movable fan rises away from the handrail at the speed Vb1, and the movable fan continues to rise for T2, and satisfies the relationship: 0.06Va≤Vb1≤0.1Va.

5. A lifting window pre-tightening and anti-pinch operation method according to claim 4, characterized in that ,When time T2 ends, the movable fan continues to descend toward the handrail at a speed Vc2, and satisfies the relationship: 0.01Va≤Vc2<0.06Va.

6. A lifting window pre-tightening and anti-pinch operation method according to claim 4, characterized in that , the duration of the speed Vb1 of the active fan is T2, and T2 satisfies the relationship: 2s≤T2≤5s.

7. A lifting window device, applied to the lifting window pre-tightening and anti-pinch operation method according to any one of claims 1 to 6, characterized in that: The device comprises: The acquisition module is used to obtain multiple parameter data values ​​of the active fan. An analysis module, used for performing data analysis on multiple parameter data values ​​of the active fan; The movement control module is used to control the movement direction of the movable fan according to the data analysis of the movable fan.

8. A lifting window pre-tightening and anti-pinch operation method according to claim 7, characterized in that , the acquisition module includes: A timing unit for recording the moving time of the movable fan; The speed detection unit is used to detect the speed change of the movable fan.

9. A computer-readable storage medium storing a computer program, wherein when the computer program is executed by a processor, the processor is caused to execute the steps of the method according to any one of claims 1 to 6.

10. A computer device comprising a memory and a processor, wherein the memory stores a computer program, and when the computer program is executed by the processor, the processor executes the steps of the method according to any one of claims 1 to 6.

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