Intelligent control method and system for steam sterilizer

Abstract

The invention relates to an intelligent control method and system for a steam type sterilizer, and relates to the field of intelligent sterilization technology, and the method comprises the following steps: obtaining a load placement state; acquiring a top shot image when the load placement state is consistent with a preset load in-place state, and performing feature recognition in the top shot image to delimit a load placement area; a preset top distance measuring device is controlled to move in the load placement area to obtain the top distance measuring distance of each position point, and calculation is performed according to the top distance measuring distance and a preset height in the cabinet to determine a point placement height; calculating according to the placement heights of all the point locations to determine the overall height of the load, and calculating according to the overall height of the load to determine the internal depth distance; and determining the internal operation duration corresponding to the internal deep distance according to a preset operation matching relationship, and controlling the sterilizer to operate according to the internal operation duration. The sterilization device has the effect of improving the overall efficiency of sterilization operation.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of intelligent sterilization technology, in particular to a steam sterilizer intelligent control method and system. BACKGROUND

[0002] The steam sterilizer is an indispensable key equipment in the fields of medical health, biological pharmaceuticals and scientific research experiments, and its core principle is to use saturated steam at high temperature and high pressure to denature and inactivate the proteins of microorganisms, thereby achieving the purpose of sterilization.

[0003] As is known to all, the physical properties such as material and structure of the load to be sterilized directly affect the efficiency of heat penetration, so different types of loads need to match different sterilization temperature, pressure and time parameters to ensure the sterilization effect and prevent damage to the goods. The existing steam sterilizer generally has multiple preset sterilization programs, before performing the sterilization operation, the user manually selects the corresponding program according to the type of the load, after selection, the sterilizer will call the preset operation parameters to execute the sterilization process.

[0004] In the above related technology, as long as the same type of load is set to work in a certain program, the difference in the internal state of the load is not considered. Taking a typical porous load as an example, the load placed flat is more easily sterilized than the load tightly stacked, that is, the sterilization time required is shorter, and in the actual sterilization operation process, the sterilization time of the two is consistent, that is, the entire sterilization process is still running in the most time-consuming mode, causing unnecessary energy consumption and time waste, and reducing the overall efficiency of the sterilization operation. SUMMARY

[0005] In order to improve the overall efficiency of the sterilization operation, the present application provides a steam sterilizer intelligent control method and system.

[0006] In a first aspect, the present application provides a steam sterilizer intelligent control method, which adopts the following technical solution:

[0007] A steam sterilizer intelligent control method, comprising:

[0008] Obtaining a load placement state;

[0009] When the load placement state is consistent with a preset load in-place state, obtaining a top shooting image, and performing feature recognition in the top shooting image to delimit a load placement area;

[0010] Controlling a preset top distance measuring device to move in the load placement area to obtain a top distance measuring distance of each position point, and calculating according to the top distance measuring distance and a preset cabinet height to determine a point position height;

[0011] According to the height of all the points, the overall height of the load is calculated, and the internal depth distance is calculated according to the overall height of the load;

[0012] According to the preset operation matching relationship, the internal operation time corresponding to the internal depth distance is determined, and the sterilizer is controlled to operate for the internal operation time.

[0013] Optionally, after the load placement area is determined, the steam sterilizer intelligent control method further comprises:

[0014] A contour point is randomly defined on the contour line of the load placement area, and the contour points are arrayed on the contour line of the load placement area according to a preset adjacent distance;

[0015] All the contour points are connected to each other to construct contour connecting line segments, and a point where any two contour connecting line segments intersect is defined as an intersection point;

[0016] All the intersection points are connected to each other to form intersection line segments, and a region enclosed by the outermost intersection line segment is determined as a placement contraction region, and a placement contraction area is determined according to the placement contraction region;

[0017] It is judged whether the placement contraction area is less than a preset single-point concentration area;

[0018] If the placement contraction area is not less than the single-point concentration area, the current placement contraction region is updated as a new load placement region to redetermine the placement contraction region until the placement contraction area is not less than the single-point concentration area;

[0019] If the placement contraction area is less than the single-point concentration area, a center point is defined according to the current placement contraction region;

[0020] The center points corresponding to each position point are counted to determine a center frequency, and a center point corresponding to the maximum center frequency is defined as a detection point;

[0021] According to the detection point and a preset proximity distance, a center internal region is demarcated, and the top distance measuring device is controlled to obtain a top distance measuring distance in the center internal region.

[0022] Optionally, after the intersection point is determined, the steam sterilizer intelligent control method further comprises:

[0023] An intersection contour distance is determined according to the intersection point and each contour point;

[0024] It is judged whether there is any intersection contour distance less than a preset reference distance;

[0025] If there is no intersection contour distance less than the reference distance, the current intersection point is maintained;

[0026] If there is any intersection profile distance less than the reference distance, the current intersection point is rejected.

[0027] Optionally, after the center number is determined, the steam sterilizer intelligent control method further comprises:

[0028] determining whether there are at least two center points with the same center number and the maximum center number;

[0029] If there are not at least two center points with the same center number and the maximum center number, the center point corresponding to the maximum center number is defined as the detection point;

[0030] If there are at least two center points with the same center number and the maximum center number, the center point corresponding to the maximum center number is defined as the candidate point;

[0031] According to the preset unit distance, an optional unit area is determined under each candidate point, and the center numbers of the center points in the optional unit area are summed and calculated to determine the optional coverage number;

[0032] According to a preset sorting rule, the optional coverage number with the maximum value is determined, and the candidate point corresponding to the optional coverage number is defined as the detection point.

[0033] Optionally, the step of calculating the overall height of the load according to the heights of all the points includes:

[0034] The maximum point placement height is defined as the upper limit placement height, and the minimum point placement height is defined as the lower limit placement height, and different concentrated placement heights are determined according to the upper limit placement height, the lower limit placement height and a preset step height;

[0035] The placement height difference is determined according to the concentrated placement height and the height of each point, and the position points with a placement height difference less than a preset concentration required height are summarized in the point collection set corresponding to the current concentrated placement height;

[0036] The point distance is determined according to any two position points in the same point collection set, and the position points with a point distance less than a preset close distance are summarized in the local set initially empty;

[0037] The local number is determined by counting all local sets;

[0038] It is determined whether the local number is greater than a preset dispersion number;

[0039] If the local number is not greater than the dispersion number, the upper limit placement height is determined as the overall height of the load;

[0040] If the local quantity is greater than the dispersion quantity, the lower limit placement height is determined as the overall height of the load.

[0041] Optionally, after the local set induction is completed, the steam sterilizer intelligent control method further includes:

[0042] Counting the position points in the local set to determine the local internal quantity;

[0043] Determining whether the local internal quantity is greater than a preset error exclusion quantity;

[0044] If the local internal quantity is greater than the error exclusion quantity, the current determined local set is maintained;

[0045] If the local internal quantity is not greater than the error exclusion quantity, the current determined local set is excluded.

[0046] Optionally, after the internal operation duration is determined, the steam sterilizer intelligent control method further includes:

[0047] Obtaining a user demand duration;

[0048] Determining whether the internal operation duration is greater than the user demand duration;

[0049] If the internal operation duration is not greater than the user demand duration, the sterilizer is controlled to operate for the internal operation duration;

[0050] If the internal operation duration is greater than the user demand duration, an unmet signal is output, and a theoretical in-depth distance corresponding to the user demand duration is determined according to the operation matching relationship;

[0051] The reasonable load height is determined according to the theoretical in-depth distance, and an indication line is drawn in the sterilizer according to the reasonable load height.

[0052] In a second aspect, the application provides a steam sterilizer intelligent control system, which adopts the following technical solution:

[0053] A steam sterilizer intelligent control system includes:

[0054] An acquisition module is configured to acquire a load placement state;

[0055] A processing module is connected to the acquisition module and the determination module, and is configured to store and process information;

[0056] A determination module is connected to the acquisition module and the processing module, and is configured to determine information;

[0057] When the determination module determines that the load placement state is consistent with a preset load in-place state, the acquisition module acquires a top photograph, and the processing module performs feature recognition in the top photograph to define a load placement area.

[0058] The processing module controls the preset top ranging device to move within the load placement area so that the acquisition module can acquire the top ranging distance of each location point, and calculates the placement height of the point based on the top ranging distance and the preset cabinet height.

[0059] The processing module calculates the overall height of the load based on the placement height of all points, and then calculates the internal depth distance based on the overall height of the load.

[0060] The processing module determines the internal operation time corresponding to the internal depth distance based on the preset operation matching relationship, and controls the sterilizer to operate within the internal operation time.

[0061] In summary, this application includes at least one of the following beneficial technical effects:

[0062] 1. By detecting the height of the load inside the sterilizer to determine the stacking situation of the load, the appropriate sterilization time can be matched to reduce unnecessary energy consumption and possible time waste, thereby improving the overall efficiency of sterilization operations.

[0063] 2. In the process of determining the load stacking situation, the actual load stacking situation is determined by analyzing the tightness at the load center point, thereby improving the accuracy of data analysis;

[0064] 3. When the sterilization time after load stacking fails to meet user requirements, effective guidance can be provided on modifying the load stacking, making it easier for users to adjust the load situation. Attached Figure Description

[0065] Fig. 1 This is a flowchart of the intelligent control method for steam sterilizers.

[0066] Fig. 2 This is a flowchart of the module of the intelligent control method for steam sterilizers. Detailed Implementation

[0067] To make the purpose, technical solution, and advantages of this application clearer, the following is combined with Figs. 1-2 The present application will be further described in detail below with reference to embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the application.

[0068] The embodiments of this application will now be described in further detail with reference to the accompanying drawings.

[0069] This application discloses an intelligent control method for a steam sterilizer, referring to... Fig. 1 The method flow of the intelligent control method for steam sterilizers includes the following steps:

[0070] Step S100: Obtain the load placement state.

[0071] The load placement state, i.e., whether the porous load to be sterilized is placed in the sterilization cavity inside the sterilizer, can be obtained through manual confirmation by the user.

[0072] Step S101: Obtain a top shooting image when the load placement state is consistent with the preset load-in-place state, and perform feature recognition in the top shooting image to demarcate the load placement area.

[0073] The load-in-place state is the load placement state when the porous load to be sterilized has been placed in the sterilization cavity. The top shooting image is an image of the interior of the sterilization cavity taken by a shooting device installed directly above the sterilization cavity and arranged downward. The load placement area is the position area where the load is currently located in the cavity, which can be determined by comparing the current top shooting image with a top shooting image taken when no load is placed in the sterilization cavity to determine the position occupied by the load in the image, and then determining the load placement area based on the position relationship between the image and the actual situation.

[0074] Step S102: Control the preset top distance measuring device to move within the load placement area to obtain the top distance measuring distance of each position point, and calculate the point placement height based on the top distance measuring distance and the preset cabinet height.

[0075] The top distance measuring device is a device installed above the sterilization cavity and arranged downward, which can move on a horizontal plane, such as an infrared sensor installed above the sterilization cavity through an X, Y linear module. The top distance measuring distance is the distance value between the top distance measuring device and the load. The cabinet height is the total height value of the sterilization cavity. The point placement height is the height of the load at the position point detected by the top distance measuring device, which is determined by subtracting the top distance measuring distance from the cabinet height.

[0076] Step S103: Calculate the overall load height based on all point placement heights, and determine the internal penetration distance based on the overall load height.

[0077] The overall load height is a height value reflecting the current load placement situation, which can be obtained by averaging all point placement heights, or determined by the method of steps S500-S5042. The internal penetration distance is half of the overall load height, i.e., the height of the position point where the external steam is most difficult to reach in the theoretical case.

[0078] Step S104: Determine the internal operation duration corresponding to the internal penetration distance based on the preset operation matching relationship, and control the sterilizer to operate for the internal operation duration.

[0079] The internal operation time is the time required for sterilization operation at the position point that enables the external steam to better penetrate the internal distance. Different internal penetration distances result in different steam movement difficulties, so the corresponding internal operation time is also different. The operation matching relationship between the two is determined by the staff through multiple tests in advance, and it is necessary to ensure that the larger the internal penetration distance, the larger the corresponding internal operation time. At this time, the sterilizer is operated with the internal operation time, which enables the sterilizer to better sterilize the current load while avoiding time waste and improving the overall efficiency of the sterilization operation.

[0080] After the load placement area is determined, the steam sterilizer intelligent control method further includes:

[0081] Step S200: Randomly define a contour point on the contour line of the load placement area, and array the contour points on the contour line of the load placement area according to the preset adjacent distance.

[0082] The adjacent distance is the distance value between the contour points on the contour line set by the staff. The array contour point method can effectively extract data from part of the position points for subsequent data analysis. Since the first contour point is randomly determined, there are multiple contour point cases in theory, i.e., there are multiple contour point schemes.

[0083] Step S201: Connect all contour points two by two to construct contour connection line segments, and define the point where any two contour connection line segments intersect as an intersection point.

[0084] The contour connection line segment is a line segment determined by two contour points, and the intersection point is a position point where the intersecting contour connection line segments intersect. Note that the intersection point does not include the contour point.

[0085] Step S202: Connect all intersection points two by two to form intersection line segments, and determine the placement shrinkage area enclosed by the outermost intersection line segment, and determine the placement shrinkage area according to the placement shrinkage area.

[0086] The intersection line segment is a line segment determined by two intersection points, and the placement shrinkage area is the area enclosed by the outermost line segment after all intersection line segments are determined. At this time, the placement shrinkage area is in the load placement area, which can better make the placement shrinkage area approach the actual center position of the load placement area. The placement shrinkage area is the area of the placement shrinkage area.

[0087] Step S203: Determine whether the placement shrinkage area is less than the preset single-point concentration area.

[0088] Single point concentration area is the maximum placement shrinkage area allowed to appear when the placement shrinkage area is identified as a position point. The purpose of the judgment is to know whether the current placement shrinkage area has converged to the center position of the load placement area.

[0089] Step S2031: If the placement shrinkage area is not less than the single point concentration area, update the current placement shrinkage area to a new load placement area to re-determine the placement shrinkage area until the placement shrinkage area is not less than the single point concentration area.

[0090] When the placement shrinkage area is not less than the single point concentration area, it means that the current placement shrinkage area cannot fit the actual center position of the load placement area, so it is updated to the load placement area to continue to execute steps S200-S202 until the actual center position of the load placement area can be determined.

[0091] Step S2032: If the placement shrinkage area is less than the single point concentration area, define a center point according to the current placement shrinkage area.

[0092] When the placement shrinkage area is less than the single point concentration area, it means that the current placement shrinkage area can fit the actual center position of the load placement area, so it is defined as a center point for identification, which is convenient for subsequent analysis.

[0093] Step S204: Count the center points corresponding to each position point to determine the center frequency, and define the center point corresponding to the maximum center frequency as the detection point.

[0094] Because different contour point schemes will determine different center points, the center frequency at this time is the number of times a single position point is defined as a center point. By defining the center point corresponding to the maximum center frequency as the detection point, the position point that best meets the requirements of the center point in the theoretical case is identified, which is convenient for subsequent analysis.

[0095] Step S205: Define a center internal area according to the detection point and a preset proximity distance, and control the top distance measuring device to obtain a top distance measuring distance within the center internal area.

[0096] The proximity distance is the maximum distance allowed to appear between the position point close to the detection point and the detection point, and the center internal area is the area defined with the detection point as the center and the proximity distance as the radius. At this time, by only obtaining the top distance measuring distance within the center internal area, the acquisition of invalid data is reduced, and the accuracy of data analysis is improved.

[0097] After the intersection point is determined, the steam sterilizer intelligent control method further comprises:

[0098] Step S300: determining the intersection contour distance according to the intersection point and each contour point.

[0099] The intersection contour distance is the straight line distance between the intersection point and the contour point.

[0100] Step S301: judging whether any intersection contour distance is less than the preset reference distance.

[0101] The reference distance is the maximum intersection contour distance allowed by the staff when determining that the intersection point and the contour point are close, and the purpose of the judgment is to know whether the current intersection point is close to the contour point.

[0102] Step S3011: if any intersection contour distance is not less than the reference distance, the current intersection point is maintained.

[0103] When any intersection contour distance is not less than the reference distance, it means that the current intersection point is not close to the contour point, so the intersection point is maintained for further analysis.

[0104] Step S3012: if any intersection contour distance is less than the reference distance, the current intersection point is removed.

[0105] When any intersection contour distance is less than the reference distance, it means that the current intersection point is close to the contour point, which is not conducive to the centralization of the load placement area, so it is removed to improve the data analysis efficiency.

[0106] After the center number is determined, the steam sterilizer intelligent control method further comprises:

[0107] Step S400: judging whether there are at least two center points with the same maximum center number.

[0108] The purpose of the judgment is to know whether there are multiple center points meeting the requirements, so as to determine the detection point.

[0109] Step S4001: if there are not at least two center points with the same maximum center number, the center point corresponding to the maximum center number is defined as the detection point.

[0110] When there are not at least two center points with the same maximum center number, it means that there is only one center point meeting the requirements, which is defined as the detection point for data analysis.

[0111] Step S4002: if there are at least two center points with the same maximum center number, the center point corresponding to the maximum center number is defined as the alternative point.

[0112] When there are at least two center points with the same maximum center number, it indicates that there are multiple required center points, and thus the center points are defined as candidate points to distinguish different center points for subsequent analysis.

[0113] Step S401: According to the preset unit distance, a candidate unit area is determined under each candidate point, and the candidate coverage number is calculated by summing the center numbers of the center points in the candidate unit area.

[0114] The unit distance is a fixed distance determined by the staff, and the candidate unit area around the candidate point can be determined by taking the candidate point as the center and the unit distance as the radius. The candidate coverage number is the sum of the center numbers of the position points determined as center points in the candidate unit area.

[0115] Step S402: According to the preset sorting rule, the candidate coverage number with the maximum value is determined, and the candidate point corresponding to the candidate coverage number is defined as the detection point.

[0116] The sorting rule is a method set by the staff to sort the numerical values, such as the bubble method. Through the sorting rule, the candidate coverage number with the maximum value can be determined, which means that the corresponding candidate point is more likely to be the actual center position of the load placement area. Therefore, it is defined as the detection point for subsequent data analysis.

[0117] The step of calculating the overall height of the load according to the placement heights of all points includes:

[0118] Step S500: The maximum point placement height is defined as the upper limit placement height, and the minimum point placement height is defined as the lower limit placement height. According to the upper limit placement height, the lower limit placement height, and the preset step height, different concentrated placement heights are determined.

[0119] The upper limit placement height and the lower limit placement height are defined to distinguish different point placement heights for subsequent analysis. The step height is a fixed distance set by the staff. The lower limit placement height is increased by different multiples of the step height to determine different concentrated placement heights, and the concentrated placement height less than the upper limit placement height is reserved.

[0120] Step S501: According to the concentrated placement height and the point placement height, the placement height difference is determined, and the position points with a placement height difference less than the preset concentrated required height are included in the point collection set corresponding to the current concentrated placement height.

[0121] The placement height difference is the difference between the point placement height and the central placement height, which is an absolute value. The central requirement height is the maximum placement height difference allowed when the point placement height is close to the central placement height. In general, the central requirement height is half of the step height. The point collection set is used to determine the position points close to the same central placement height, which facilitates subsequent analysis.

[0122] Step S502: Determine the point distance between any two position points in the same point collection set, and collect the position points with a point distance less than the preset close distance into the preset initially empty local collection.

[0123] The point distance is the straight-line distance between the position points in the same point collection set. The close distance is the maximum point distance allowed when the identified position points are on the same convex or concave of the load. The local collection can effectively analyze the convex or concave in the current area.

[0124] Step S503: Count all local collections to determine the local quantity.

[0125] The local quantity is the total number of local collections determined by counting each local collection.

[0126] Step S504: Determine whether the local quantity is greater than the preset dispersion quantity.

[0127] The dispersion quantity is the minimum local quantity required when the identified convex and concave conditions are more, i.e., the load is not high. The purpose of the judgment is to know whether the current load is high, so as to determine the appropriate load overall height.

[0128] Step S5041: If the local quantity is not greater than the dispersion quantity, determine the upper limit placement height as the load overall height.

[0129] When the local quantity is not greater than the dispersion quantity, it means that the current load is high, i.e., the position point corresponding to the current upper limit placement height is the starting point of the steam penetration. Therefore, the upper limit placement height is determined as the load overall height, which facilitates subsequent sterilization.

[0130] Step S5042: If the local quantity is greater than the dispersion quantity, determine the lower limit placement height as the load overall height.

[0131] When the local quantity is greater than the dispersion quantity, it indicates that the current load tightness is not high, that is, the load is relatively loose, and if the load is adjusted to be tight, the overall height corresponding to the load will not be higher than the lower placement height, and therefore the lower placement height is determined as the overall height of the load, so that the load can be better sterilized and the time waste is reduced, and the overall efficiency of the sterilization operation is improved.

[0132] After the local set induction is completed, the steam sterilizer intelligent control method further includes:

[0133] Step S600: Counting the position points in the local set to determine the local internal quantity.

[0134] The local internal quantity is the number of position points in the local set.

[0135] Step S601: Determine whether the local internal quantity is greater than a preset error exclusion quantity.

[0136] The error exclusion quantity is the minimum local internal quantity required by the local set with reference significance, and the purpose of the determination is to know whether the current local set has analysis significance.

[0137] Step S6011: If the local internal quantity is greater than the error exclusion quantity, maintain the current determined local set.

[0138] When the local internal quantity is greater than the error exclusion quantity, it indicates that the current local set has analysis significance, and therefore data maintenance can be performed.

[0139] Step S6012: If the local internal quantity is not greater than the error exclusion quantity, the current determined local set is excluded.

[0140] When the local internal quantity is not greater than the error exclusion quantity, it indicates that the current local set has no significance, that is, the current local set is interference information, and therefore it is excluded to improve the accuracy of data analysis.

[0141] After the internal operation duration is determined, the steam sterilizer intelligent control method further includes:

[0142] Step S700: Obtain the user demand duration.

[0143] The user demand duration is the maximum duration that the user inputs synchronously during the load type input process to allow the load to be sterilized.

[0144] Step S701: Determine whether the internal operation duration is greater than the user demand duration.

[0145] The purpose of the determination is to know whether the placement of the current load meets the user sterilization duration requirement.

[0146] Step S7011: If the internal operation duration is not greater than the user demand duration, control the sterilizer to operate for the internal operation duration.

[0147] When the internal operation duration is not greater than the user demand duration, it indicates that the current load placement situation meets the sterilization duration requirement, and thus the sterilizer can be directly controlled to start operation.

[0148] Step S7012: If the internal operation duration is greater than the user demand duration, output a non-compliance signal, and determine a theoretical deep distance corresponding to the user demand duration according to the operation matching relationship.

[0149] When the internal operation duration is greater than the user demand duration, it indicates that the current load placement situation cannot meet the sterilization duration requirement, and thus a non-compliance signal is output to identify this situation, facilitating subsequent analysis. The theoretical deep distance is the deep distance of the coldest point allowed to appear under the condition of meeting the current user demand duration.

[0150] Step S702: Calculate a reasonable load height according to the theoretical deep distance, and demarcate an indication line in the sterilizer according to the reasonable load height.

[0151] The reasonable load height is twice the theoretical deep distance. At this time, the indication line is demarcated at the position of the reasonable load height in the sterilizer, so that the staff can spread the currently stacked load, thereby reducing the difficulty of steam sterilization and further reducing the time required for sterilization of the current multi-hole load.

[0152] Reference Fig. 2 Based on the same inventive concept, the embodiments of the present application provide a steam sterilizer intelligent control system, which comprises:

[0153] An acquisition module is configured to acquire a load placement state.

[0154] A processing module is connected with the acquisition module and the judgment module, and is configured to store and process information.

[0155] A judgment module is connected with the acquisition module and the processing module, and is configured to judge information.

[0156] When the judgment module judges that the load placement state is consistent with the preset load placement state, the acquisition module acquires a top photograph, and the processing module performs feature recognition on the top photograph to demarcate a load placement area.

[0157] The processing module controls a preset top distance measuring device to move in the load placement area, so that the acquisition module acquires a top distance measuring distance of each position point, and calculates a point position placement height according to the top distance measuring distance and a preset cabinet height.

[0158] The processing module calculates according to all point positions to determine the overall height of the load, and calculates the internal depth distance according to the overall height of the load;

[0159] The processing module determines the internal operation time corresponding to the internal depth distance according to the preset operation matching relationship, and controls the sterilizer to operate for the internal operation time;

[0160] The center detection control module is used to determine the center area of the actual need for top distance measurement distance determination;

[0161] The intersection point elimination module is used to eliminate some intersections that have no analysis significance;

[0162] The center point screening module is used to screen a plurality of center points meeting the requirements to determine a suitable detection point;

[0163] The overall load height determination module is used to determine a suitable overall load height;

[0164] The local set elimination module is used to eliminate some local sets that have no analysis significance;

[0165] The stacking modification guidance module is used to modify and guide the stacking of the load that does not meet the requirements.

[0166] Those skilled in the art can clearly understand that, for the convenience and brevity of description, only the division of the above functional modules is taken as an example for illustration, and in actual application, the above functions can be completed by different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above. The specific working process of the system, device and unit described above can refer to the corresponding process in the foregoing method embodiments, which will not be repeated here.

Claims

1. A method for intelligent control of a steam sterilizer, characterized in that, include: Get the load placement status; When the load placement state matches the preset load in place state, a top-captured image is obtained, and feature recognition is performed in the top-captured image to delineate the load placement area; The preset top ranging device is controlled to move within the load placement area to obtain the top ranging distance of each location point, and the placement height of the point is determined based on the top ranging distance and the preset cabinet height; the overall height of the load is determined based on the placement height of all points, and the internal depth distance is determined based on the overall height of the load. The internal operation time corresponding to the internal depth distance is determined according to the preset operation matching relationship, and the sterilizer is controlled to operate within the internal operation time.

2. The intelligent control method for a steam sterilizer according to claim 1, characterized in that, After the load placement area is determined, the intelligent control method for steam sterilizers also includes: A contour point is randomly defined on the outline of the load placement area, and the contour points are arrayed on the outline of the load placement area according to the preset adjacent distance. Connect all contour points in pairs to construct contour-connecting line segments, and define the point where any two contour-connecting line segments intersect as the intersection point; Connect all intersection points in pairs to form intersecting line segments, and define the area enclosed by the outermost intersecting line segments as the placement shrinkage area, and determine the placement shrinkage area based on the placement shrinkage area; Determine whether the area of ​​contraction is smaller than the preset single-point concentration area; If the placement shrinkage area is not less than the single-point concentration area, then the current placement shrinkage area is updated to a new load placement area to redetermine the placement shrinkage area until the placement shrinkage area is not less than the single-point concentration area. If the placement shrinkage area is smaller than the single-point concentration area, then the center point is defined based on the current placement shrinkage area; The center point corresponding to each location point is counted to determine the center count, and the center point corresponding to the largest center count is defined as the detection point; The central internal area is defined based on the detection points and preset similar distances, and the top ranging device is controlled to acquire the top ranging distance within the central internal area.

3. The intelligent control method for a steam sterilizer according to claim 2, characterized in that, After the intersection point is determined, the intelligent control method for steam sterilizers also includes: Determine the distance between intersecting contours based on the intersection points and each contour point; Determine if there exists a situation where the distance between any intersecting contours is less than the preset reference interval; If there is no case where the distance between any intersecting contours is less than the reference interval, then the current intersection point will be maintained; If any intersecting contour is less than the reference distance, the current intersection point will be discarded.

4. The intelligent control method for a steam sterilizer according to claim 2, characterized in that, After the number of times the center is determined, the intelligent control method for steam sterilizers also includes: Determine whether there exist at least two center points with the same maximum frequency. If there are no two center points with the same and largest center count, then the center point corresponding to the largest center count is defined as the detection point. If there are at least two center points with the same and the largest center degree, then the center point corresponding to the largest center degree is defined as the candidate point. Under each candidate point, a candidate unit area is defined according to a preset unit distance, and the number of candidate coverages is determined by summing the center times of the center points within the candidate unit area; The maximum number of times a candidate point is covered is determined according to a preset sorting rule, and the candidate point corresponding to that number of times is defined as a detection point.

5. The intelligent control method for a steam sterilizer according to claim 2, characterized in that, The steps to determine the overall load height based on the placement height of all points include: The maximum placement height is defined as the upper limit placement height, and the minimum placement height is defined as the lower limit placement height. Different centralized placement heights are determined based on the upper limit placement height, the lower limit placement height, and the preset step height. The placement height difference is determined based on the centralized placement height and the placement height of each point, and the locations where the placement height difference is less than the preset centralized required height are included in the collection set of points corresponding to the current centralized placement height. The distance between any two points in the same location collection set is determined, and points whose distance is less than a preset distance are grouped into a preset initially empty local set; the number of local sets is determined by counting all local sets. Determine if the local quantity is greater than the preset dispersion quantity; If the local quantity is not greater than the dispersed quantity, then the upper limit placement height is determined as the overall load height; If the local quantity is greater than the dispersed quantity, then the lower limit placement height is determined as the overall load height.

6. The intelligent control method for a steam sterilizer according to claim 5, characterized in that, After the local set generalization is completed, the intelligent control method for steam sterilizers also includes: The quantity within a local set is determined by counting the points within that local set. Determine whether the number within a local area is greater than the preset error exclusion number; If the number of elements within a local set is greater than the number of elements to be excluded from the error, then the currently determined local set is maintained. If the number of elements within a local set is not greater than the number of elements to be excluded from the error set, then the currently determined local set will be removed.

7. The intelligent control method for a steam sterilizer according to claim 1, characterized in that, Once the internal operation time is determined, the intelligent control method for steam sterilizers also includes: The duration of user demand; Determine if the internal processing time exceeds the user's required processing time; If the internal operation time is not greater than the user's required operation time, then the sterilizer will be controlled to operate within the internal operation time. If the internal job duration exceeds the user's required duration, a failure signal will be output, and the theoretical depth distance corresponding to the user's required duration will be determined based on the job matching relationship. The reasonable load height is determined by calculation based on the theoretical depth distance, and an indicator line is marked inside the sterilizer according to the reasonable load height.

8. An intelligent control system for a steam sterilizer, characterized in that, include: The acquisition module is used to obtain the load placement status; The processing module, connected to the acquisition and judgment modules, is used for information storage and processing; The judgment module, connected to the acquisition and processing modules, is used for judging information. When the judgment module determines that the load placement state is consistent with the preset load in place state, the acquisition module acquires the top image and the processing module performs feature recognition in the top image to delineate the load placement area. The processing module controls the preset top ranging device to move within the load placement area so that the acquisition module can acquire the top ranging distance of each location point, and calculates the placement height of the point based on the top ranging distance and the preset cabinet height. The processing module calculates the overall height of the load based on the placement height of all points, and then calculates the internal depth distance based on the overall height of the load. The processing module determines the internal operation time corresponding to the internal depth distance based on the preset operation matching relationship, and controls the sterilizer to operate within the internal operation time.

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