A medicine clean room pressure difference rapid balance energy-saving control system and control method

Abstract

The present invention discloses a pharmaceutical clean room pressure differential rapid balance energy-saving control system and control method, which relate to the technical field of clean room pressure differential control, including: obtaining a pressure differential adjustment value through a corridor analysis method based on existing clean room pressure differential balance data; obtaining a room balance interval using a corridor correlation analysis method; obtaining a clean room pressure differential adjustment diagram; and controlling the clean room pressure differential based on the clean room pressure differential adjustment diagram and a real-time pressure differential value. The present invention is used to solve the problem in the existing pharmaceutical clean room pressure differential balance control method that when pressure differential control is required for multiple rooms and clean room corridors, the problem is that the amount of data analysis is large due to a large amount of air volume data and the inability to accurately control the pressure differential in the clean room corridor, resulting in reduced pressure differential control efficiency and high energy consumption.

Description

Technical Field

[0001] The present invention relates to the technical field of clean room pressure difference control, and in particular to a pressure difference rapid balancing energy-saving control system and a control method for a pharmaceutical clean room. Background Art

[0002] Cleanroom differential pressure control refers to regulating and controlling the air pressure difference within the cleanroom to prevent external contaminants from entering the cleanroom or preventing contaminants within the cleanroom from spreading to other areas. Cleanroom differential pressure control is achieved by maintaining the pressure difference between the cleanroom and the external environment, between cleanrooms of different cleanliness levels, and between different functional areas within the same clean area. The purpose of cleanroom differential pressure control is to prevent contamination, protect products, and improve production efficiency. The main methods for implementing differential pressure control include return air inlet control, return air valve control, residual pressure valve control, and automatic control.

[0003] Existing methods for balancing pressure differences in pharmaceutical clean rooms usually obtain data on the supply and return air volume in the clean room, analyze the air flow state in the clean room, thereby obtaining changes in the pressure in the clean room and controlling the pressure difference in the clean room. Although this improved method can accurately control the pressure difference in the clean room by the air volume, when it is necessary to control the pressure difference of multiple rooms in the clean room and the clean room corridor, the large amount of air volume data and the inability to accurately control the pressure difference in the clean room corridor will result in a large amount of data analysis during the pressure difference control, thereby causing problems such as reduced pressure difference control efficiency and high energy consumption. For example, in the patent application with publication number CN119123611A, a method, device, equipment and medium for adaptive control of clean room pressure difference are disclosed. This solution is to reflect the demand for pressure changes inside the clean room by acquiring supply air volume data and return air volume data in real time. By considering the air leakage caused by the sealing condition of the clean room, it can consider and adapt to the possible small pressure fluctuations inside the clean room, thereby improving the accuracy of clean room pressure difference control. Other improvements in the balanced control of pressure difference in pharmaceutical clean rooms are usually improvements in the reasonable design of exhaust air volume and supply air volume. They still cannot solve the problem that when pressure difference control is required for multiple rooms and clean room corridors in the clean room, the amount of data analysis during pressure difference control is large due to the large amount of air volume data and the inability to accurately control the pressure difference in the clean room corridor, resulting in reduced pressure difference control efficiency and high energy consumption. In view of this, it is necessary to improve the existing balanced control method of pressure difference in pharmaceutical clean rooms. Summary of the Invention

[0004] The present invention aims to solve one of the technical problems in the prior art to at least a certain extent, by proposing a pharmaceutical clean room pressure difference rapid balance energy-saving control system and control method, which is used to solve the problem that the existing pharmaceutical clean room pressure difference balance control method cannot solve the problem that when it is necessary to control the pressure difference of multiple rooms in the clean room and the clean room corridor, the pressure difference of the clean room corridor cannot be accurately controlled due to the large amount of air volume data, resulting in a large amount of data analysis during the pressure difference control, thereby causing reduced pressure difference control efficiency and high energy consumption.

[0005] To achieve the above objectives, in a first aspect, the present application provides a pharmaceutical clean room pressure differential rapid balance energy-saving control system, comprising a corridor pressure differential determination module, a multi-room pressure differential correlation analysis module, and a clean room pressure differential balance module;

[0006] The corridor pressure difference determination module is used to obtain the design value of the pressure difference in the clean room corridor before pressure difference balance and the pressure difference value of the pressure difference in the clean room corridor during pressure difference balance based on the existing clean room pressure difference balance data, and obtain the pressure difference adjustment value of the clean room corridor through the corridor analysis method;

[0007] The multi-room pressure difference correlation analysis module is used to analyze all rooms in the clean room connected to the clean room corridor using the corridor correlation analysis method, and obtain the room balance interval corresponding to each room based on the analysis results; and obtain the clean room pressure difference adjustment diagram based on the room balance intervals of all rooms;

[0008] The clean room pressure differential balance module is used to determine the pressure differential of the clean room corridor based on the pressure differential adjustment value when controlling the clean room pressure differential balance, and obtain the real-time pressure differential values of all rooms in the clean room connected to the clean room corridor; based on the clean room pressure differential adjustment diagram and the real-time pressure differential value, control the pressure differential of all rooms in the clean room connected to the clean room corridor.

[0009] Furthermore, the corridor pressure difference determination module includes a corridor pressure difference analysis unit, which is configured with a corridor pressure difference analysis strategy. The corridor pressure difference analysis strategy includes:

[0010] Obtain the existing clean room pressure difference balance data and record it as historical balance data; obtain the number of times the pressure difference of the clean room is adjusted based on the historical balance data and record it as c; record the design value of the clean room corridor pressure difference at each clean room pressure difference adjustment in the historical balance data as corridor design value ZS1 to corridor design value ZS c ;

[0011] The pressure difference values of the clean room corridor pressure difference at each clean room pressure difference balance in the historical balance data are recorded as corridor pressure difference value ZY1 to corridor pressure difference value ZY c .

[0012] Furthermore, the corridor analysis method includes:

[0013] The pressure difference adjustment data of each clean room in the historical balance data is recorded as pressure difference adjustment data YT1 to pressure difference adjustment data YT c , where the pressure difference adjustment data YT v The corresponding corridor design value ZS and corridor pressure difference value ZY are the corridor design value ZS v And the corridor pressure difference ZY v , v is a positive integer less than or equal to c and greater than or equal to 1;

[0014] For any pressure difference adjustment data YT, the pressure difference of all rooms connected to the clean room corridor after the pressure difference adjustment in the pressure difference adjustment data YT is recorded as room pressure difference FY1 to room pressure difference FY n , where n is the number of rooms connected to the clean room corridor; the difference between the room pressure difference FY and the corridor pressure difference value ZY corresponding to the pressure difference adjustment data YT is recorded as the room adjustment value; the difference between the room pressure difference FY and the corridor design value ZS corresponding to the pressure difference adjustment data YT is recorded as the room design value;

[0015] The average value of the room adjustment values corresponding to all room pressure differences FY is obtained and recorded as the room influence mean; the average value of the room design values corresponding to all room pressure differences FY is obtained and recorded as the room design mean.

[0016] Furthermore, the corridor analysis method also includes:

[0017] Obtain the room impact mean and room design mean corresponding to all pressure difference adjustment data YT, and use the corridor analysis algorithm to obtain the pressure difference adjustment value of the clean room corridor. The corridor analysis algorithm is: , where F is the pressure difference adjustment value, ZY i is the pressure difference value ZY of the ith corridor among all the corridor pressure difference values ZY, ZS i For the design value ZS of the i-th corridor among all the corridor design values ZS, FY i is the mean influence value of the ith room among all the room influence values, FS i The design mean of the i-th room among the design means of all rooms.

[0018] Furthermore, the multi-room pressure difference correlation analysis module includes a multi-room analysis unit, and the multi-room analysis unit is configured with a multi-room analysis strategy, which includes:

[0019] Based on historical balance data, the corridor correlation analysis method is used to obtain the corridor adjustment coefficient corresponding to each room connected to the clean room corridor; the corridor correlation analysis method includes:

[0020] For any room α connected to the clean room corridor: establish a plane rectangular coordinate system, recorded as the correlation analysis coordinate system, where the coordinates to the right of the coordinate origin in the X-axis of the correlation analysis coordinate system are pressure difference adjustment data YT1 to pressure difference adjustment data YT c , the unit of Y axis is Pa;

[0021] The straight line Y=Z in the correlation analysis coordinate system is recorded as the corridor calibration line, where Z is the corridor design value ZS1 to the corridor design value ZS c The average value of the pressure difference adjustment value and the pressure difference adjustment value; the pressure difference adjustment data YT1 to the pressure difference adjustment data YT c The pressure difference in room α is adjusted and recorded as room adjustment pressure difference FT1 to room adjustment pressure difference FT c In the correlation analysis coordinate system, the pressure difference adjustment data YT is used as the horizontal coordinate and the room adjustment pressure difference FT is used as the vertical coordinate for punctuation, and the curve obtained by fitting all the punctuation points is recorded as the room pressure difference curve, wherein the room adjustment pressure difference FT1 to the room adjustment pressure difference FT c The average value is recorded as the reference pressure difference of room α.

[0022] Furthermore, the corridor correlation analysis method also includes:

[0023] Obtain the distances between all points in the room pressure difference curve and the corridor calibration line, and record the interval consisting of the maximum and minimum values of all distances as the room equilibrium interval;

[0024] Obtain the room balance intervals corresponding to all rooms connected to the clean room corridor.

[0025] Furthermore, the multi-room analysis strategy also includes:

[0026] All rooms connected to the clean room corridor are recorded as adjustment room TF1 to adjustment room TF n ; Establish a plane rectangular coordinate system and record it as the pressure difference adjustment coordinate system, where the coordinate origin of the X-axis of the pressure difference adjustment coordinate system is filled in with the adjustment room TF1 to the adjustment room TF n , the Y axis of the pressure difference adjustment coordinate system is a constant axis;

[0027] For any adjustment room TF, the minimum and maximum values of the room balance interval corresponding to the adjustment room TF are recorded as β1 and β2 respectively; the points with vertical coordinates β1 and β2 in the straight line X = adjustment room TF are recorded as corridor association points A and corridor association points B.

[0028] Furthermore, the multi-room analysis strategy also includes:

[0029] The curve formed by the corridor association points A of all the adjustment rooms FT is recorded as the minimum association curve; the curve formed by the corridor association points B of all the adjustment rooms FT is recorded as the maximum association curve, wherein the horizontal coordinates of the leftmost point and the rightmost point of the minimum association curve and the maximum association curve are both the adjustment room TF1 and the adjustment room TF n ;

[0030] Adjust the corridor connection point A of room TF1, adjust the corridor connection point B of room TF1, adjust the corridor connection point n Corridor connection point A, adjust room TF n The closed graph consisting of the corridor correlation point B, the minimum correlation curve and the maximum correlation curve is recorded as the clean room pressure difference adjustment diagram.

[0031] Furthermore, the clean room pressure differential balancing module is configured with a clean room pressure differential balancing unit, and the clean room pressure differential balancing unit is configured with a clean room pressure differential balancing strategy, which includes:

[0032] When balancing the pressure difference in the clean room, close the vents of the clean room corridor and all adjustment rooms TF, and adjust the pressure difference in the clean room corridor to the pressure difference determination value, where the pressure difference determination value is the sum of the corridor design value ZS and the pressure difference adjustment value;

[0033] Obtain the real-time pressure difference values of all adjustment rooms TF, and perform punctuation in the pressure difference adjustment coordinate system based on the real-time pressure difference values of all adjustment rooms TF, and record the curve obtained by fitting all punctuation points as the real-time pressure difference curve, where the real-time pressure difference value is the difference between the pressure difference in the adjustment room TF and the determined pressure difference value;

[0034] When the real-time pressure difference curve is completely within the clean room pressure difference adjustment diagram, the pressure difference of the adjustment room TF is not controlled;

[0035] When the real-time pressure difference curve is not completely within the clean room pressure difference adjustment diagram, the area of the real-time pressure difference curve outside the clean room pressure difference adjustment diagram is recorded as a pressure loss curve;

[0036] For any decompression curve: when there is a point in the decompression curve whose horizontal coordinate is any adjustment room TF, the point in the decompression curve whose horizontal coordinate is the adjustment room TF is recorded as the decompression adjustment point. There can be multiple decompression adjustment points in the same decompression curve; the horizontal coordinates of all decompression adjustment points are recorded as the decompression adjustment room;

[0037] When there is no point with the horizontal coordinate of any adjustment room TF in the decompression curve, the adjustment room TF closest to the horizontal coordinate of the leftmost point and the rightmost point of the decompression curve is recorded as the decompression adjustment room;

[0038] Adjust the pressure difference of all pressure loss adjustment rooms to the reference pressure difference corresponding to the pressure loss adjustment room.

[0039] In a second aspect, the present application also provides a method for rapidly balancing and energy-saving pressure differences in a pharmaceutical clean room, comprising the following sub-steps:

[0040] Step S1, based on the existing clean room pressure differential balance data, obtain the design value of the pressure differential in the clean room corridor before pressure differential balance and the pressure differential value of the pressure differential in the clean room corridor during pressure differential balance, and obtain the pressure differential adjustment value of the clean room corridor through the corridor analysis method;

[0041] Step S2: Analyze all rooms in the clean room that are connected to the clean room corridor using the corridor association analysis method, and obtain the room balance interval corresponding to each room based on the analysis results; and obtain the clean room pressure difference adjustment diagram based on the room balance intervals of all rooms;

[0042] Step S3, when controlling the pressure difference balance of the clean room, the pressure difference of the clean room corridor is determined based on the pressure difference adjustment value, and the real-time pressure difference values of all rooms in the clean room connected to the clean room corridor are obtained; the pressure difference of all rooms in the clean room connected to the clean room corridor is controlled based on the clean room pressure difference adjustment diagram and the real-time pressure difference value.

[0043] Beneficial effects of the present invention: This application first obtains the design value of the pressure difference in the clean room corridor before pressure differential balance and the pressure difference value of the pressure difference in the clean room corridor during pressure differential balance based on the existing clean room pressure differential balance data, and obtains the pressure differential adjustment value of the clean room corridor through the corridor analysis method; then uses the corridor correlation analysis method to analyze all the rooms in the clean room connected to the clean room corridor, and obtains the room balance interval corresponding to each room based on the analysis results. The advantage of this is that, since the clean room corridor is connected to all the rooms in the clean room, by obtaining the pressure differential adjustment value of the clean room corridor, it is helpful to give priority to determining the pressure differential of the clean room corridor when performing pressure differential control in the subsequent process, thereby preventing the problem of a large amount of analysis data and reduced pressure differential control efficiency caused by the pressure differential change in the clean room corridor when performing pressure differential control on the rooms in the clean room; by obtaining the room balance interval of each room, it is helpful to accurately control the pressure differential of each room in the clean room based on the real-time pressure differential value in the subsequent analysis, thereby improving the overall efficiency of pressure differential control and reducing energy consumption during control;

[0044] The present application also obtains a clean room pressure difference adjustment diagram based on the room balance interval of all rooms; finally, when controlling the clean room pressure difference balance, the pressure difference of the clean room corridor is determined based on the pressure difference adjustment value, and the real-time pressure difference values of all rooms in the clean room connected to the clean room corridor are obtained; the pressure difference of all rooms in the clean room connected to the clean room corridor is controlled based on the clean room pressure difference adjustment diagram and the real-time pressure difference value. The advantage of this is that by obtaining the clean room pressure difference adjustment diagram, it helps to improve the overall efficiency of the analysis of all rooms when analyzing multiple rooms, thereby specifically controlling the pressure difference of rooms that need pressure difference control, reducing the amount of data analysis, and improving the efficiency of pressure difference control. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 is a flow chart of the steps of the method of the present invention;

[0046] Figure 2 is a functional block diagram of the system of the present invention;

[0047] Figure 3 A schematic diagram of the correlation analysis coordinate system of the present invention;

[0048] Figure 4 is a schematic diagram of the pressure difference adjustment coordinate system of the present invention;

[0049] Figure 5 This is a schematic diagram of obtaining a depressurization adjustment room according to the present invention. DETAILED DESCRIPTION

[0050] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0051] Example 1, please refer to Figure 1 As shown, the present application provides a method for quickly balancing and energy-saving pressure difference control in a pharmaceutical clean room, comprising the following sub-steps:

[0052] Step S1, based on the existing clean room pressure differential balance data, obtain the design value of the pressure differential in the clean room corridor before pressure differential balance and the pressure differential value of the pressure differential in the clean room corridor during pressure differential balance, and obtain the pressure differential adjustment value of the clean room corridor through the corridor analysis method;

[0053] Step S1 includes: step S101, obtaining the existing clean room pressure difference balance data and recording it as historical balance data; obtaining the number of times the pressure difference of the clean room is adjusted by the historical balance data and recording it as c; recording the design value of the clean room corridor pressure difference when the clean room pressure difference is adjusted each time in the historical balance data as corridor design value ZS1 to corridor design value ZS c ;

[0054] Step S102: Record the pressure difference values of the clean room corridor at each clean room pressure difference balance in the historical balance data as corridor pressure difference values ZY1 to corridor pressure difference values ZY c ;

[0055] During the specific implementation process, in this embodiment, the design value of the clean room corridor pressure difference when the clean room pressure difference is adjusted is the pressure difference in the clean room corridor under ideal conditions, and the pressure difference value of the clean room corridor pressure difference when the clean room pressure difference is balanced is the pressure difference in the corridor under actual conditions. Considering that the pressure difference in the corridor will be affected by the pressure difference of the rooms connected to the corridor during the actual pressure difference adjustment, the corridor pressure difference value ZY should be slightly larger than the corridor design value, so as to prevent the pressure difference in the corridor from being unreasonable after the pressure difference adjustment. For example, during a data analysis, the collected corridor pressure difference value ZY is 18Pa, and the corresponding corridor design value ZS is 15Pa, which means that the actual pressure difference in the corridor differs by 3Pa from the ideal pressure difference.

[0056] Step S103, the corridor analysis method includes: Step S1031, recording the pressure difference adjustment data of each clean room in the historical balance data as pressure difference adjustment data YT1 to pressure difference adjustment data YT c , where the pressure difference adjustment data YT v The corresponding corridor design value ZS and corridor pressure difference value ZY are the corridor design value ZS v And the corridor pressure difference ZY v , v is a positive integer less than or equal to c and greater than or equal to 1;

[0057] In the specific implementation process, the purpose of the above description is to clearly state that the subscript serial number of the pressure difference adjustment data YT is the same as the subscript serial number of the corridor design value ZS and the corridor pressure difference value ZY corresponding to the pressure difference adjustment data YT, which helps to make subsequent data analysis smoother;

[0058] Step S1032: for any pressure difference adjustment data YT, the pressure differences of all rooms connected to the clean room corridor after the pressure difference adjustment in the pressure difference adjustment data YT are recorded as room pressure difference FY1 to room pressure difference FY n, where n is the number of rooms connected to the clean room corridor; the difference between the room pressure difference FY and the corridor pressure difference value ZY corresponding to the pressure difference adjustment data YT is recorded as the room adjustment value; the difference between the room pressure difference FY and the corridor design value ZS corresponding to the pressure difference adjustment data YT is recorded as the room design value;

[0059] In a specific implementation process, for example, during a data analysis, the pressure difference of a room is 20 Pa, and the corridor design value ZS corresponding to the pressure adjustment data YT is 15 Pa, so the room design value is 5 Pa. By obtaining the room design value and the room adjustment value, it is helpful to obtain the difference relationship between the pressure difference of each room and the corridor pressure difference value ZY and the corridor design value ZS. Therefore, when the corridor analysis algorithm is subsequently used, the obtained pressure difference adjustment value can be made more consistent with the actual impact of the pressure difference of the corridor on the rooms connected to the corridor, that is, the pressure difference adjustment value is more accurate.

[0060] Step S1033: Obtain the average value of the room adjustment values corresponding to all room pressure differences FY, and record it as the room impact mean value; obtain the average value of the room design values corresponding to all room pressure differences FY, and record it as the room design mean value;

[0061] Step S1034: Obtain the room impact mean and room design mean corresponding to all pressure difference adjustment data YT, and use the corridor analysis algorithm to obtain the pressure difference adjustment value of the clean room corridor. The corridor analysis algorithm is: , where F is the pressure difference adjustment value, ZY i is the pressure difference value ZY of the ith corridor among all the corridor pressure difference values ZY, ZS i For the design value ZS of the i-th corridor among all the corridor design values ZS, FY i is the mean influence value of the ith room among all the room influence values, FS i is the design mean of the i-th room among all the design means of the rooms;

[0062] In the specific implementation process, for example, in a data analysis, the pressure difference values ZY of all corridors obtained are 18Pa, 20Pa, 19Pa, 18Pa and 18Pa respectively, and the corridor design values ZS are 15Pa, 15Pa, 15Pa, 15Pa and 15Pa respectively; the affected mean values of all rooms are 3Pa, 3Pa, 4Pa, 3Pa and 5Pa respectively, and the design mean values of all rooms are 7Pa, 7Pa, 8Pa, 7Pa and 9Pa respectively. It can be obtained through calculation that the pressure difference adjustment value is approximately 5.256, which means that when the pressure difference of the corridor is determined subsequently, in order to ensure the rationality of the corridor pressure difference after the corridor is affected by the pressure difference of the rooms connected to the corridor, the corridor pressure difference value ZY of the corridor should be set to the sum of the corridor design value ZS and 5.256Pa.

[0063] Step S2: Analyze all rooms in the clean room that are connected to the clean room corridor using the corridor association analysis method, and obtain the room balance interval corresponding to each room based on the analysis results; and obtain the clean room pressure difference adjustment diagram based on the room balance intervals of all rooms;

[0064] Step S2 includes: step S201, using a corridor association analysis method based on historical balance data to obtain a corridor adjustment coefficient corresponding to each room connected to the clean room corridor;

[0065] Step S202, the corridor correlation analysis method includes: Step S2021, for any room α connected to the clean room corridor: establish a plane rectangular coordinate system, recorded as the correlation analysis coordinate system, wherein the coordinates to the right of the coordinate origin in the X-axis of the correlation analysis coordinate system are pressure difference adjustment data YT1 to pressure difference adjustment data YT c , the unit of Y axis is Pa;

[0066] Step S2022: record the straight line Y=Z in the correlation analysis coordinate system as the corridor calibration line, where Z is the corridor design value ZS1 to the corridor design value ZS c The average value of the pressure difference adjustment value and the pressure difference adjustment value; the pressure difference adjustment data YT1 to the pressure difference adjustment data YT c The pressure difference in room α is adjusted and recorded as room adjustment pressure difference FT1 to room adjustment pressure difference FT c In the correlation analysis coordinate system, the pressure difference adjustment data YT is used as the horizontal coordinate and the room adjustment pressure difference FT is used as the vertical coordinate for punctuation, and the curve obtained by fitting all the punctuation points is recorded as the room pressure difference curve, wherein the room adjustment pressure difference FT1 to the room adjustment pressure difference FT c The average value of is recorded as the reference pressure difference of room α;

[0067] Step S2023, obtaining the distances between all points in the room pressure difference curve and the corridor calibration line, and recording the interval consisting of the maximum and minimum values of all distances as the room equilibrium interval;

[0068] In the specific implementation process, for example, during a data analysis, the obtained correlation analysis coordinate system is as follows Figure 3 As shown, curve FYQ is the room pressure difference curve, and straight line Z is the corridor calibration line. Then, through analysis, point GG1 is the point with the smallest distance from the corridor calibration line in the room pressure difference curve, and point FF1 is the point with the largest distance from the corridor calibration line in the room pressure difference curve. The distances between point GG1 and point FF1 and the corridor calibration line are gg1 and ff1 respectively, so the room balance interval can be set to [gg1, ff1].

[0069] Step S2024, obtaining the room balance intervals corresponding to all rooms connected to the clean room corridor;

[0070] In the specific implementation process, by obtaining the room balance interval, it is helpful to accurately control the pressure difference of each room in the clean room based on the real-time pressure difference value during subsequent analysis, thereby improving the overall efficiency of pressure difference control and reducing energy consumption during control.

[0071] Step S203: All rooms connected to the clean room corridor are recorded as adjustment room TF1 to adjustment room TF2. n ; Establish a plane rectangular coordinate system and record it as the pressure difference adjustment coordinate system, where the coordinate origin of the X-axis of the pressure difference adjustment coordinate system is filled in with the adjustment room TF1 to the adjustment room TF n , the Y axis of the pressure difference adjustment coordinate system is a constant axis;

[0072] Step S204: For any adjustment room TF, the minimum and maximum values of the room balance interval corresponding to the adjustment room TF are recorded as β1 and β2 respectively; the points with ordinates β1 and β2 on the line X = adjustment room TF are recorded as corridor-related points A and B;

[0073] Step S205: The curve formed by the corridor association points A of all the adjustment rooms FT is recorded as the minimum association curve; the curve formed by the corridor association points B of all the adjustment rooms FT is recorded as the maximum association curve, wherein the horizontal coordinates of the leftmost point and the rightmost point of the minimum association curve and the maximum association curve are both the adjustment room TF1 and the adjustment room TF n ;

[0074] Step S206: Adjust the corridor associated point A of room TF1, adjust the corridor associated point B of room TF1, and adjust the corridor associated point n Corridor connection point A, adjust room TF n The closed graph composed of the corridor correlation point B, the minimum correlation curve and the maximum correlation curve is recorded as the clean room pressure difference adjustment diagram;

[0075] In the specific implementation process, for example, during a data analysis, the pressure difference adjustment coordinate system is obtained as follows: Figure 4 As shown, TF1 to TF4 are adjustment rooms TF1 to adjustment rooms TF4 respectively, curve ZX1 is the minimum correlation curve, and curve ZD1 is the maximum correlation curve. It can be obtained through analysis that the clean room pressure difference adjustment diagram is area CQ; for example, in the subsequent analysis, the actual pressure difference curve obtained is curve SY, then it can be obtained through analysis that the real-time pressure difference curve is completely in the clean room pressure difference adjustment diagram, indicating that the pressure difference of all rooms in the clean room is in the normal range, so there is no need to adjust the pressure difference in the clean room.

[0076] Step S3, when controlling the pressure differential balance of the clean room, determining the pressure differential of the clean room corridor based on the pressure differential adjustment value, and obtaining the real-time pressure differential values of all rooms in the clean room connected to the clean room corridor; and controlling the pressure differential of all rooms in the clean room connected to the clean room corridor based on the clean room pressure differential adjustment diagram and the real-time pressure differential values;

[0077] Step S3 includes: step S301, when performing balance control on the clean room pressure difference, closing the vents of the clean room corridor and all adjustment rooms TF, and adjusting the pressure difference of the clean room corridor to a pressure difference determination value, wherein the pressure difference determination value is the sum of the corridor design value ZS and the pressure difference adjustment value;

[0078] Step S302: Acquire the real-time pressure differential values of all adjustment rooms TF, and perform punctuation in the pressure differential adjustment coordinate system based on the real-time pressure differential values of all adjustment rooms TF. The curve obtained by fitting all the punctuation points is recorded as the real-time pressure differential curve, where the real-time pressure differential value is the difference between the pressure differential in the adjustment room TF and the determined pressure differential value.

[0079] Step S303: when the real-time pressure difference curve is completely within the clean room pressure difference adjustment diagram, the pressure difference of the adjustment room TF is not controlled;

[0080] Step S304: When the real-time pressure difference curve is not completely within the clean room pressure difference adjustment diagram, the area of the real-time pressure difference curve outside the clean room pressure difference adjustment diagram is recorded as a pressure loss curve;

[0081] Step S305: For any decompression curve, if there is a point with a horizontal coordinate equal to any adjustment room TF in the decompression curve, the point with the horizontal coordinate equal to the adjustment room TF in the decompression curve is recorded as the decompression adjustment point. There may be multiple decompression adjustment points in the same decompression curve; the horizontal coordinates of all decompression adjustment points are recorded as the decompression adjustment room.

[0082] In the specific implementation process, for example, during a data analysis, the clean room pressure difference adjustment diagram is obtained as follows: Figure 5 As shown in the area CQ in the figure, curve RY is the actual pressure difference curve. Through analysis, it can be obtained that curve YY in curve RY is the pressure loss curve. In addition, there are points CO1 and CO2 with the horizontal coordinates of adjustment room TF in curve YY. Therefore, points CO1 and CO2 can be recorded as pressure loss adjustment points, and adjustment rooms TF2 and TF3 can be recorded as pressure loss adjustment rooms.

[0083] Step S306: When there is no point with a horizontal coordinate corresponding to any adjustment room TF in the decompression curve, the adjustment room TF with the closest horizontal coordinates to the leftmost point and the rightmost point of the decompression curve is recorded as the decompression adjustment room;

[0084] Step S307: adjusting the pressure differences of all the pressure loss adjustment rooms to the reference pressure differences corresponding to the pressure loss adjustment rooms.

[0085] Example 2, second aspect, please refer to Figure 2 As shown, the present application also provides a medical clean room pressure difference rapid balance energy-saving control system, including a corridor pressure difference determination module, a multi-room pressure difference correlation analysis module and a clean room pressure difference balance module;

[0086] The corridor pressure difference determination module is used to obtain the design value of the pressure difference in the clean room corridor before pressure difference balance and the pressure difference value of the pressure difference in the clean room corridor during pressure difference balance based on the existing clean room pressure difference balance data, and obtain the pressure difference adjustment value of the clean room corridor through the corridor analysis method;

[0087] The corridor pressure difference determination module includes a corridor pressure difference analysis unit, which is configured with a corridor pressure difference analysis strategy. The corridor pressure difference analysis strategy includes:

[0088] Obtain the existing clean room pressure difference balance data and record it as historical balance data; obtain the number of times the pressure difference of the clean room is adjusted based on the historical balance data and record it as c; record the design value of the clean room corridor pressure difference at each clean room pressure difference adjustment in the historical balance data as corridor design value ZS1 to corridor design value ZS c ;

[0089] The pressure difference values of the clean room corridor pressure difference at each clean room pressure difference balance in the historical balance data are recorded as corridor pressure difference value ZY1 to corridor pressure difference value ZY c .

[0090] The corridor analysis method includes: recording the pressure difference adjustment data of each clean room in the historical balance data as pressure difference adjustment data YT1 to pressure difference adjustment data YT c , where the pressure difference adjustment data YT v The corresponding corridor design value ZS and corridor pressure difference value ZY are the corridor design value ZS v And the corridor pressure difference ZY v , v is a positive integer less than or equal to c and greater than or equal to 1;

[0091] For any pressure difference adjustment data YT, the pressure difference of all rooms connected to the clean room corridor after the pressure difference adjustment in the pressure difference adjustment data YT is recorded as room pressure difference FY1 to room pressure difference FY n , where n is the number of rooms connected to the clean room corridor; the difference between the room pressure difference FY and the corridor pressure difference value ZY corresponding to the pressure difference adjustment data YT is recorded as the room adjustment value; the difference between the room pressure difference FY and the corridor design value ZS corresponding to the pressure difference adjustment data YT is recorded as the room design value;

[0092] Obtain the average value of the room adjustment values corresponding to all room pressure differences FY, and record it as the room influence mean; obtain the average value of the room design values corresponding to all room pressure differences FY, and record it as the room design mean;

[0093] The corridor analysis method also includes: obtaining the room impact mean and room design mean corresponding to all pressure difference adjustment data YT, and using the corridor analysis algorithm to obtain the pressure difference adjustment value of the clean room corridor. The corridor analysis algorithm is: , where F is the pressure difference adjustment value, ZY i is the pressure difference value ZY of the ith corridor among all the corridor pressure difference values ZY, ZS i For the design value ZS of the i-th corridor among all the corridor design values ZS, FY i is the mean influence value of the ith room among all the room influence values, FS i The design mean of the i-th room among the design means of all rooms.

[0094] The multi-room pressure difference correlation analysis module is used to analyze all rooms in the clean room connected to the clean room corridor using the corridor correlation analysis method, and obtain the room balance interval corresponding to each room based on the analysis results; and obtain the clean room pressure difference adjustment diagram based on the room balance intervals of all rooms;

[0095] The multi-room pressure difference correlation analysis module includes a multi-room analysis unit. The multi-room analysis unit is configured with a multi-room analysis strategy. The multi-room analysis strategy includes:

[0096] Based on historical balance data, the corridor correlation analysis method is used to obtain the corridor adjustment coefficient corresponding to each room connected to the clean room corridor; the corridor correlation analysis method includes:

[0097] For any room α connected to the clean room corridor: establish a plane rectangular coordinate system, recorded as the correlation analysis coordinate system, where the coordinates to the right of the coordinate origin in the X-axis of the correlation analysis coordinate system are pressure difference adjustment data YT1 to pressure difference adjustment data YT c , the unit of Y axis is Pa;

[0098] The straight line Y=Z in the correlation analysis coordinate system is recorded as the corridor calibration line, where Z is the corridor design value ZS1 to the corridor design value ZS c The average value of the pressure difference adjustment value and the pressure difference adjustment value; the pressure difference adjustment data YT1 to the pressure difference adjustment data YT c The pressure difference in room α is adjusted and recorded as room adjustment pressure difference FT1 to room adjustment pressure difference FT c In the correlation analysis coordinate system, the pressure difference adjustment data YT is used as the horizontal coordinate and the room adjustment pressure difference FT is used as the vertical coordinate for punctuation, and the curve obtained by fitting all the punctuation points is recorded as the room pressure difference curve, wherein the room adjustment pressure difference FT1 to the room adjustment pressure difference FTc The average value of is recorded as the reference pressure difference of room α;

[0099] Obtain the distances between all points in the room pressure difference curve and the corridor calibration line, and record the interval consisting of the maximum and minimum values of all distances as the room equilibrium interval;

[0100] Obtain the room balance intervals corresponding to all rooms connected to the clean room corridor.

[0101] The multi-room analysis strategy also includes: recording all rooms connected to the clean room corridor as adjustment room TF1 to adjustment room TF n ; Establish a plane rectangular coordinate system and record it as the pressure difference adjustment coordinate system, where the coordinate origin of the X-axis of the pressure difference adjustment coordinate system is filled in with the adjustment room TF1 to the adjustment room TF n , the Y axis of the pressure difference adjustment coordinate system is a constant axis;

[0102] For any adjustment room TF, the minimum and maximum values of the room balance interval corresponding to the adjustment room TF are recorded as β1 and β2 respectively; the points with ordinates β1 and β2 on the straight line X = adjustment room TF are recorded as corridor-related points A and B;

[0103] The multi-room analysis strategy also includes: recording the curve formed by the corridor correlation points A of all the adjusted rooms FT as the minimum correlation curve; recording the curve formed by the corridor correlation points B of all the adjusted rooms FT as the maximum correlation curve, wherein the horizontal coordinates of the leftmost point and the rightmost point of the minimum correlation curve and the maximum correlation curve are both the adjustment room TF1 and the adjustment room TF n ;

[0104] Adjust the corridor connection point A of room TF1, adjust the corridor connection point B of room TF1, adjust the corridor connection point n Corridor connection point A, adjust room TF n The closed graph consisting of the corridor correlation point B, the minimum correlation curve and the maximum correlation curve is recorded as the clean room pressure difference adjustment diagram.

[0105] The cleanroom pressure differential balancing module is used to determine the pressure differential of the cleanroom corridor based on the pressure differential adjustment value when controlling the cleanroom pressure differential balance, and obtain the real-time pressure differential values of all rooms in the cleanroom connected to the cleanroom corridor; and control the pressure differential of all rooms in the cleanroom connected to the cleanroom corridor based on the cleanroom pressure differential adjustment diagram and the real-time pressure differential value;

[0106] The clean room pressure differential balancing module is equipped with a clean room pressure differential balancing unit, and the clean room pressure differential balancing unit is equipped with a clean room pressure differential balancing strategy. The clean room pressure differential balancing strategy includes:

[0107] When balancing the pressure difference in the clean room, close the vents of the clean room corridor and all adjustment rooms TF, and adjust the pressure difference in the clean room corridor to the pressure difference determination value, where the pressure difference determination value is the sum of the corridor design value ZS and the pressure difference adjustment value;

[0108] Obtain the real-time pressure difference values of all adjustment rooms TF, and perform punctuation in the pressure difference adjustment coordinate system based on the real-time pressure difference values of all adjustment rooms TF, and record the curve obtained by fitting all punctuation points as the real-time pressure difference curve, where the real-time pressure difference value is the difference between the pressure difference in the adjustment room TF and the determined pressure difference value;

[0109] When the real-time pressure difference curve is completely within the clean room pressure difference adjustment diagram, the pressure difference of the adjustment room TF is not controlled;

[0110] When the real-time pressure difference curve is not completely within the clean room pressure difference adjustment diagram, the area of the real-time pressure difference curve outside the clean room pressure difference adjustment diagram is recorded as a pressure loss curve;

[0111] For any decompression curve: when there is a point in the decompression curve whose horizontal coordinate is any adjustment room TF, the point in the decompression curve whose horizontal coordinate is the adjustment room TF is recorded as the decompression adjustment point. There can be multiple decompression adjustment points in the same decompression curve; the horizontal coordinates of all decompression adjustment points are recorded as the decompression adjustment room;

[0112] When there is no point with the horizontal coordinate of any adjustment room TF in the decompression curve, the adjustment room TF closest to the horizontal coordinate of the leftmost point and the rightmost point of the decompression curve is recorded as the decompression adjustment room;

[0113] Adjust the pressure difference of all pressure loss adjustment rooms to the reference pressure difference corresponding to the pressure loss adjustment room.

[0114] Working principle: First, based on the existing clean room pressure differential balance data, the design value of the pressure differential in the clean room corridor before pressure differential balance and the pressure differential value in the clean room corridor during pressure differential balance are obtained, and the pressure differential adjustment value of the clean room corridor is obtained through the corridor analysis method; then the corridor association analysis method is used to analyze all the rooms connected to the clean room corridor in the clean room, and the room balance interval corresponding to each room is obtained based on the analysis results; the clean room pressure differential adjustment diagram is obtained based on the room balance interval of all rooms; finally, when controlling the clean room pressure differential balance, the pressure differential of the clean room corridor is determined based on the pressure differential adjustment value, and the real-time pressure differential values of all rooms connected to the clean room corridor in the clean room are obtained; the pressure differential of all rooms connected to the clean room corridor in the clean room is controlled based on the clean room pressure differential adjustment diagram and the real-time pressure differential values.

[0115] Through the description of the above embodiments, the embodiments of the present invention can be provided as methods, systems, or computer program products. Based on this understanding, the essence of the above technical solutions or the portion that contributes to the prior art can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a magnetic disk, or an optical disk, and includes a number of instructions for enabling a computer device (such as a personal computer, server, or network device) to execute the methods described in various embodiments or certain portions of the embodiments.

[0116] In the embodiments provided in this application, it should be understood that the disclosed system or method can be implemented in other ways. The embodiments described above are merely illustrative. For example, the division of modules or units is only a logical function division. There may be other division methods in actual implementation. For example, multiple modules or units can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some communication interfaces, and the indirect coupling or communication connection of systems, modules and units can be electrical, mechanical or other forms.

[0117] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A medical clean room pressure difference rapid balance energy-saving control system, characterized in that: It includes corridor pressure difference determination module, multi-room pressure difference correlation analysis module and clean room pressure difference balance module; The corridor pressure difference determination module is used to obtain the design value of the pressure difference in the clean room corridor before pressure difference balance and the pressure difference value of the pressure difference in the clean room corridor during pressure difference balance based on the existing clean room pressure difference balance data, and obtain the pressure difference adjustment value of the clean room corridor through the corridor analysis method; The multi-room pressure difference correlation analysis module is used to analyze all rooms in the clean room connected to the clean room corridor using the corridor correlation analysis method, and obtain the room balance interval corresponding to each room based on the analysis results; and obtain the clean room pressure difference adjustment diagram based on the room balance intervals of all rooms; The cleanroom pressure differential balancing module is used to determine the pressure differential of the cleanroom corridor based on the pressure differential adjustment value when controlling the cleanroom pressure differential balance, and obtain the real-time pressure differential values of all rooms in the cleanroom connected to the cleanroom corridor; and control the pressure differential of all rooms in the cleanroom connected to the cleanroom corridor based on the cleanroom pressure differential adjustment diagram and the real-time pressure differential value; The corridor pressure difference determination module includes a corridor pressure difference analysis unit, which is configured with a corridor pressure difference analysis strategy. The corridor pressure difference analysis strategy includes: Obtain the existing clean room pressure difference balance data and record it as historical balance data; obtain the number of times the pressure difference of the clean room is adjusted based on the historical balance data and record it as c; record the design value of the clean room corridor pressure difference at each clean room pressure difference adjustment in the historical balance data as corridor design value ZS1 to corridor design value ZS c ; The pressure difference values of the clean room corridor pressure difference at each clean room pressure difference balance in the historical balance data are recorded as corridor pressure difference value ZY1 to corridor pressure difference value ZY c ; Corridor analysis includes: The pressure difference adjustment data of each clean room in the historical balance data is recorded as pressure difference adjustment data YT1 to pressure difference adjustment data YT c , where the pressure difference adjustment data YT v The corresponding corridor design value ZS and corridor pressure difference value ZY are the corridor design value ZS v And the corridor pressure difference ZY v , v is a positive integer less than or equal to c and greater than or equal to 1; For any pressure difference adjustment data YT, the pressure difference of all rooms connected to the clean room corridor after the pressure difference adjustment in the pressure difference adjustment data YT is recorded as room pressure difference FY1 to room pressure difference FY n , where n is the number of rooms connected to the clean room corridor; the difference between the room pressure difference FY and the corridor pressure difference value ZY corresponding to the pressure difference adjustment data YT is recorded as the room adjustment value; the difference between the room pressure difference FY and the corridor design value ZS corresponding to the pressure difference adjustment data YT is recorded as the room design value; Obtain the average value of the room adjustment values corresponding to all room pressure differences FY, and record it as the room influence mean; obtain the average value of the room design values corresponding to all room pressure differences FY, and record it as the room design mean; Corridor analysis also includes: Obtain the room impact mean and room design mean corresponding to all pressure difference adjustment data YT, and use the corridor analysis algorithm to obtain the pressure difference adjustment value of the clean room corridor. The corridor analysis algorithm is: , where F is the pressure difference adjustment value, ZY i is the pressure difference value ZY of the ith corridor among all the corridor pressure difference values ZY, ZS i For the design value ZS of the i-th corridor among all the corridor design values ZS, FY i is the mean influence value of the ith room among all the room influence values, FS i The design mean of the i-th room among the design means of all rooms.

2. A medical clean room pressure difference rapid balance energy-saving control system according to claim 1, characterized in that: The multi-room pressure difference correlation analysis module includes a multi-room analysis unit. The multi-room analysis unit is configured with a multi-room analysis strategy. The multi-room analysis strategy includes: Based on historical balance data, the corridor correlation analysis method is used to obtain the corridor adjustment coefficient corresponding to each room connected to the clean room corridor; the corridor correlation analysis method includes: For any room α connected to the clean room corridor: establish a plane rectangular coordinate system, recorded as the correlation analysis coordinate system, where the coordinates to the right of the coordinate origin in the X-axis of the correlation analysis coordinate system are pressure difference adjustment data YT1 to pressure difference adjustment data YT c , the unit of Y axis is Pa; The straight line Y=Z in the correlation analysis coordinate system is recorded as the corridor calibration line, where Z is the corridor design value ZS1 to the corridor design value ZS c The average value of the pressure difference adjustment value and the pressure difference adjustment value; the pressure difference adjustment data YT1 to the pressure difference adjustment data YT c The pressure difference in room α is adjusted and recorded as room adjustment pressure difference FT1 to room adjustment pressure difference FT c In the correlation analysis coordinate system, the pressure difference adjustment data YT is used as the horizontal coordinate and the room adjustment pressure difference FT is used as the vertical coordinate for punctuation, and the curve obtained by fitting all the punctuation points is recorded as the room pressure difference curve, wherein the room adjustment pressure difference FT1 to the room adjustment pressure difference FT c The average value is recorded as the reference pressure difference of room α.

3. A medical clean room pressure difference rapid balance energy-saving control system according to claim 2, characterized in that: Corridor linkage analysis also includes: Obtain the distances between all points in the room pressure difference curve and the corridor calibration line, and record the interval consisting of the maximum and minimum values of all distances as the room equilibrium interval; Obtain the room balance intervals corresponding to all rooms connected to the clean room corridor.

4. A medical clean room pressure difference rapid balance energy-saving control system according to claim 3, characterized in that: Multi-room analysis strategies also include: All rooms connected to the clean room corridor are recorded as adjustment room TF1 to adjustment room TF n ; Establish a plane rectangular coordinate system and record it as the pressure difference adjustment coordinate system, where the coordinate origin of the X-axis of the pressure difference adjustment coordinate system is filled in with the adjustment room TF1 to the adjustment room TF n , the Y axis of the pressure difference adjustment coordinate system is a constant axis; For any adjustment room TF, the minimum and maximum values of the room balance interval corresponding to the adjustment room TF are recorded as β1 and β2 respectively; the points with vertical coordinates β1 and β2 in the straight line X = adjustment room TF are recorded as corridor association points A and corridor association points B.

5. A medical clean room pressure difference rapid balance energy-saving control system according to claim 4, characterized in that: Multi-room analysis strategies also include: The curve formed by the corridor association points A of all the adjustment rooms FT is recorded as the minimum association curve; the curve formed by the corridor association points B of all the adjustment rooms FT is recorded as the maximum association curve, wherein the horizontal coordinates of the leftmost point and the rightmost point of the minimum association curve and the maximum association curve are both the adjustment room TF1 and the adjustment room TF n ; Adjust the corridor connection point A of room TF1, adjust the corridor connection point B of room TF1, adjust the corridor connection point n Corridor connection point A, adjust room TF n The closed graph consisting of the corridor correlation point B, the minimum correlation curve and the maximum correlation curve is recorded as the clean room pressure difference adjustment diagram.

6. A medical clean room pressure difference rapid balance energy-saving control system according to claim 5, characterized in that: The clean room pressure differential balancing module is equipped with a clean room pressure differential balancing unit, and the clean room pressure differential balancing unit is equipped with a clean room pressure differential balancing strategy. The clean room pressure differential balancing strategy includes: When balancing the pressure difference in the clean room, close the vents of the clean room corridor and all adjustment rooms TF, and adjust the pressure difference in the clean room corridor to the pressure difference determination value, where the pressure difference determination value is the sum of the corridor design value ZS and the pressure difference adjustment value; Obtain the real-time pressure difference values of all adjustment rooms TF, and perform punctuation in the pressure difference adjustment coordinate system based on the real-time pressure difference values of all adjustment rooms TF, and record the curve obtained by fitting all punctuation points as the real-time pressure difference curve, where the real-time pressure difference value is the difference between the pressure difference in the adjustment room TF and the determined pressure difference value; When the real-time pressure difference curve is completely within the clean room pressure difference adjustment diagram, the pressure difference of the adjustment room TF is not controlled; When the real-time pressure difference curve is not completely within the clean room pressure difference adjustment diagram, the area of the real-time pressure difference curve outside the clean room pressure difference adjustment diagram is recorded as a pressure loss curve; For any decompression curve: when there is a point in the decompression curve whose horizontal coordinate is any adjustment room TF, the point in the decompression curve whose horizontal coordinate is the adjustment room TF is recorded as the decompression adjustment point. There can be multiple decompression adjustment points in the same decompression curve; the horizontal coordinates of all decompression adjustment points are recorded as the decompression adjustment room; When there is no point with the horizontal coordinate of any adjustment room TF in the decompression curve, the adjustment room TF closest to the horizontal coordinate of the leftmost point and the rightmost point of the decompression curve is recorded as the decompression adjustment room; Adjust the pressure difference of all pressure loss adjustment rooms to the reference pressure difference corresponding to the pressure loss adjustment room.

7. A method for rapidly balancing and energy-saving control of pressure difference in a pharmaceutical clean room, for realizing a rapid balancing and energy-saving control system of pressure difference in a pharmaceutical clean room according to any one of claims 1 to 6, characterized in that: The following sub-steps are included: Step S1, based on the existing clean room pressure differential balance data, obtain the design value of the pressure differential in the clean room corridor before pressure differential balance and the pressure differential value of the pressure differential in the clean room corridor during pressure differential balance, and obtain the pressure differential adjustment value of the clean room corridor through the corridor analysis method; Step S2: Analyze all rooms in the clean room that are connected to the clean room corridor using the corridor association analysis method, and obtain the room balance interval corresponding to each room based on the analysis results; and obtain the clean room pressure difference adjustment diagram based on the room balance intervals of all rooms; Step S3, when controlling the pressure differential balance of the clean room, determining the pressure differential of the clean room corridor based on the pressure differential adjustment value, and obtaining real-time pressure differential values of all rooms in the clean room connected to the clean room corridor; The pressure difference of all rooms in the clean room connected to the clean room corridor is controlled based on the clean room pressure difference adjustment diagram and the real-time pressure difference value.

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