Exhaust method and system for traditional Chinese medicine liquid packaging bag

Abstract

The invention relates to an exhaust method and system for a traditional Chinese medicine liquid packaging bag, and relates to the field of traditional Chinese medicine production technologies. When the liquid medicine filling state is consistent with a preset filling completion state, controlling correlation devices located on the two sides of the packaging bag to move upwards at preset original positions, and obtaining correlation states and correlation movement distances of the correlation devices in real time; when the correlation state is consistent with a preset successful receiving state, determining an exhaust point according to a current correlation moving distance and an original position, and calculating according to the exhaust point and a preset package overall length to determine an exhaust moving distance; and a preset exhaust device is controlled to move to the exhaust point and clamp the packaging bag, and the exhaust device is controlled to move upwards by the exhaust moving distance. The invention has the effect of reducing the possibility that the curative effect and preservation time of the traditional Chinese medicine are influenced by air.

Description

Technical Field

[0001] The invention relates to the field of traditional Chinese medicine production technology, and in particular to an exhaust method and system for a traditional Chinese medicine liquid packaging bag. Background Art

[0002] Chinese medicine liquid packaging refers to the containers and materials used to package Chinese medicine liquid products. This form of packaging is crucial to the safe, hygienic storage and quality protection of Chinese medicine liquids. Therefore, the design and application of Chinese medicine liquid packaging bags play an important role in the modern Chinese medicine industry.

[0003] After the production of traditional Chinese medicine is completed, the medicine liquid is poured into the packaging bag through the filling equipment, and then the packaging bag is sealed by the plastic sealing equipment to ensure that the traditional Chinese medicine liquid is not affected by external factors during storage and transportation.

[0004] In the above-mentioned related technologies, although the packaging bags are plastic-sealed during the production of traditional Chinese medicine, there is still some air in the packaging bags. The presence of this air may affect the efficacy and shelf life of the traditional Chinese medicine, and there is still room for improvement. Summary of the invention

[0005] In order to reduce the possibility that the efficacy and storage time of traditional Chinese medicine are affected by air, the present invention provides a method and system for venting traditional Chinese medicine liquid packaging bags.

[0006] In a first aspect, the present invention provides a method for venting a traditional Chinese medicine liquid packaging bag, which adopts the following technical solution: A method for venting a traditional Chinese medicine liquid packaging bag, comprising: Get the liquid medicine filling status; When the liquid medicine filling state is consistent with the preset filling completion state, the shooting devices on both sides of the packaging bag are controlled to move upward at the preset original position, and the shooting state and shooting moving distance of the shooting devices are obtained in real time; When the shooting state is consistent with the preset successful receiving state, the exhaust point is determined according to the current shooting moving distance and the original position, and the exhaust moving distance is determined by calculation according to the exhaust point and the preset overall length of the package; The preset exhaust device is controlled to move to the exhaust point and clamp the packaging bag, and the exhaust device is controlled to move upwards for the exhaust movement distance.

[0007] Optionally, when the shooting state is consistent with the preset successful receiving state and the exhaust point is determined, the exhaust method of the Chinese medicine liquid packaging bag further includes: Determine the actual height of the liquid medicine according to the current exhaust point and obtain the volume of the liquid medicine filled; Determine the theoretical filling height corresponding to the volume of the filling liquid according to the preset filling matching relationship; Calculate the difference between the theoretical filling height and the actual liquid medicine height to determine the filling deviation height; Determine whether the filling deviation height is greater than the preset allowable deviation height; If the filling deviation height is not greater than the permissible deviation height, a normal filling signal is output and the exhaust device is controlled to move; If the filling deviation height is greater than the allowable deviation height, an abnormal filling signal is output.

[0008] Optionally, after the normal filling signal is output, the method for venting the Chinese medicine liquid packaging bag also includes: Establishing a parallel detection path according to the exhaust point, and determining the detection point on the parallel detection path according to a preset unit distance; Controlling the shooting device to move along the parallel detection path to obtain the shooting status at the detection point; When the shooting state is consistent with the successful receiving state, the corresponding detection point is defined as a successful point, and the number of successes is determined by counting the successful points, and the number of detections is determined by counting the detection points; Calculate the success rate based on the number of successes and the number of tests; Determine whether the success rate is greater than the preset demand rate; If the success ratio is greater than the demand ratio, the exhaust device is controlled to move; If the success ratio is not greater than the required ratio, the exhaust point is updated based on the actual height of the liquid medicine and the preset correction distance, and the success ratio is judged again until the success ratio is greater than the required ratio.

[0009] Optionally, after the abnormal filling signal is output, the method for venting the Chinese medicine liquid packaging bag also includes: Establishing a parallel detection path according to the exhaust point, determining two boundary points according to the parallel detection path, and determining the detection lateral width according to the boundary points; Calculate the difference between the detected transverse width and the preset transverse width of the package to determine the difference transverse width; Determine whether the difference lateral width is less than a preset reference permissible width; If the difference lateral width is not less than the reference permissible width, a packaging tilt signal is output; If the difference lateral width is smaller than the reference permissible width, it is determined whether the filling deviation height is greater than the preset upper limit deviation height; If the filling deviation height is greater than the upper limit deviation height, a bag damage signal is output; If the filling deviation height is not greater than the upper limit deviation height, an insufficient filling signal is output.

[0010] Optionally, after the packaging tilt signal is output, the method for venting the traditional Chinese medicine liquid packaging bag further includes: Get the liquid filled area; Determine the internal volume of the package according to the liquid filling area, and perform a difference calculation based on the internal volume of the package and the volume of the filled liquid to determine the filling deviation volume; Determine whether the filling deviation volume is less than the preset reasonable deviation volume; If the filling deviation volume is less than the reasonable deviation volume, a normal tilt signal is output; If the filling deviation volume is not less than the reasonable deviation volume, an abnormal tilt signal is output.

[0011] Optionally, the method further includes a step of determining a liquid filling area, the step comprising: The two boundary points are defined as original points, and the parallel detection path corresponding to the two original points is defined as the original detection path, and the original detection path is adjusted downward according to a preset adjustment height to reconstruct the parallel detection path; Controlling the shooting device to move on the new parallel detection path to determine the boundary point, and defining the current boundary point as a replacement point; Perform distance calculation based on the original point and the replacement point to determine the distance between the points, and determine the distance between the points with the smallest value based on the preset sorting rules, and define the replacement point corresponding to the distance between the points as the binding point of the original point; Determine the extension direction according to the original point and the binding point, and establish a penetrating ray with the original point as the starting point, which is directed toward the extension direction and passes through the binding point; Determine whether there is an intersection between two penetrating rays; If the two penetrating rays do not have an intersection, the replacement point is updated to a new original point, and the original detection path is updated again until the two penetrating rays have an intersection; If there is an intersection point between the two penetrating rays, the liquid filling area is determined based on the parallel detection path determined for the first time and all the penetrating rays.

[0012] Optionally, after the distance between the points is determined, the method for exhausting the Chinese medicine liquid packaging bag also includes: Determine whether the distances between two points determined by a single original point are equal; If the distances between the two points determined by a single original point are not equal, the binding point of the original point is determined according to the distance between the points; If the two points determined by a single original point are equidistant from each other, a first boundary line segment is determined based on the original point and any alternative point, and a second boundary line segment is determined based on another original point and another alternative point; When there is no intersection between the first boundary line segment and the second boundary line segment, a replacement point corresponding to the original point is determined as a binding point.

[0013] In a second aspect, the present invention provides an exhaust system for a traditional Chinese medicine liquid packaging bag, which adopts the following technical solution: A traditional Chinese medicine liquid packaging bag exhaust system, comprising: The acquisition module is used to obtain the filling status of the liquid medicine; A processing module, connected to the acquisition module and the judgment module, for storing and processing information; A judgment module, connected with the acquisition module and the processing module, for judging the information; When the judging module judges that the filling state of the liquid medicine is consistent with the preset filling completion state, the processing module controls the shooting devices on both sides of the packaging bag to move upward at the preset original position, and enables the acquisition module to obtain the shooting state and shooting movement distance of the shooting devices in real time; When the judging module judges that the shooting state is consistent with the preset successful receiving state, the processing module determines the exhaust point according to the current shooting moving distance and the original position, and calculates according to the exhaust point and the preset overall length of the package to determine the exhaust moving distance; The processing module controls the preset exhaust device to move to the exhaust point and clamp the packaging bag, and controls the exhaust device to move upwards by an exhaust movement distance.

[0014] In summary, the present invention includes at least one of the following beneficial technical effects: 1. In the production process of traditional Chinese medicine, for the liquid packaging bag that has been filled, determine the part where the liquid is located according to the filling situation, and control the exhaust device to remove the air in the rest of the part, so as to reduce the air in the closed packaging bag and affect the efficacy and storage time of traditional Chinese medicine; 2. The residual liquid on the packaging bag can be analyzed to achieve better exhaust effect; 3. The tilt and damage of the packaging bag can be analyzed to improve the stability of the exhaust operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a flow chart of the exhaust method of traditional Chinese medicine liquid packaging bag.

[0016] Figure 2 It is a flow chart of the filling situation analysis method.

[0017] Figure 3 It is a flow chart of the method for analyzing the residual liquid in packaging bags.

[0018] Figure 4 It is a flow chart of the method for analyzing the abnormality of packaging of packaging bags.

[0019] Figure 5 It is a flow chart of the method for analyzing the tilt of packaging bag.

[0020] Figure 6is a flow chart of a method for determining a liquid-filled area.

[0021] Figure 7 is a schematic diagram of the liquid-filled area.

[0022] Figure 8 is a flow chart of a binding point determination method.

[0023] Fig. 9 It is a module flow chart of the exhaust method of traditional Chinese medicine liquid packaging bag. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the present invention more clear, the following Figure 1-Figure 9 It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0025] The embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings.

[0026] The embodiment of the present invention discloses a method for venting a traditional Chinese medicine liquid packaging bag. During the production process of traditional Chinese medicine, the filling condition of the liquid in the packaging bag can be analyzed to exhaust the air in the part not filled with liquid, thereby reducing the air remaining in the closed packaging bag and affecting the efficacy and storage time of the traditional Chinese medicine.

[0027] Reference Figure 1 The method flow of the exhaust method of the Chinese medicine liquid packaging bag includes the following steps: Step S100: Acquire the drug solution filling status.

[0028] The liquid medicine filling status refers to the filling status of the traditional Chinese medicine packaging bag, including three states: waiting for filling status, filling status and completed filling status.

[0029] Step S101: When the liquid medicine filling state is consistent with the preset filling completion state, the shooting devices on both sides of the packaging bag are controlled to move upward at the preset original position, and the shooting state and shooting movement distance of the shooting devices are obtained in real time.

[0030] The completed filling state refers to the corresponding liquid medicine filling state after the Chinese medicine liquid to be filled has been filled into the packaging bag. When the liquid medicine filling state is consistent with the completed filling state, the packaging bag can be subsequently processed; the shooting device is a device including an infrared transmitter and an infrared receiver, wherein the infrared transmitter and the infrared receiver are respectively located on both sides of the packaging bag. When there is liquid medicine between the shooting device, the infrared receiver cannot receive the output signal of the infrared transmitter because the liquid will refract the infrared rays; the original position is the position set by the staff when the shooting device has not started working. Controlling the shooting device to move upward can distinguish the dividing line between the liquid and the liquid-free parts of the packaging bag, which is convenient for subsequent analysis; the shooting state is the state of whether the infrared receiver receives the infrared signal of the infrared transmitter, and the shooting movement distance is the distance the shooting device moves upward from the original position.

[0031] Step S102: When the shooting state is consistent with the preset successful receiving state, the exhaust point is determined according to the current shooting movement distance and the original position, and the exhaust movement distance is determined by calculation according to the exhaust point and the preset overall length of the package.

[0032] The successful reception state refers to the shooting state when the infrared receiver receives the infrared signal from the infrared transmitter. When the shooting state is consistent with the successful reception state, it means that there is no liquid medicine at this position to refract the infrared rays, that is, the liquid in the packaging bag is filled to this position; the exhaust point refers to the point after the original position moves upward by the current shooting movement distance, that is, the initial point where exhaust treatment is required; the overall length of the packaging is the overall length of the packaging bag in the height direction, and the exhaust movement distance is the distance value in the packaging bag that needs exhaust treatment, which is determined by subtracting the exhaust point from the overall length of the packaging.

[0033] Step S103: Control the preset exhaust device to move to the exhaust point and clamp the packaging bag, and control the exhaust device to move upwards for the exhaust movement distance.

[0034] The exhaust device can clamp and move the packaging bag, for example, it can be composed of a stepper motor driver, a stepper motor and a clamping assembly. The packaging bag can be clamped by the clamping assembly. At this time, the entire exhaust device can be controlled to move upward to exhaust the air in the part of the packaging bag without liquid, so that the air content in the packaging bag is less after the packaging bag is subsequently sealed, thereby reducing the impact of air on the efficacy and shelf life of traditional Chinese medicine.

[0035] Reference Figure 2 When the shooting state is consistent with the preset successful receiving state and the exhaust point is determined, the exhaust method of the Chinese medicine liquid packaging bag also includes: Step S200: Determine the actual height of the liquid medicine according to the current exhaust point, and obtain the volume of the liquid medicine filled.

[0036] The actual height of the medicine liquid is the total height of the medicine liquid filled in the packaging bag, and the volume of the filled medicine liquid is the volume of the medicine liquid filled from the outside, which can be determined by installing a flow recording device on the liquid outlet of the filling device.

[0037] Step S201: determining a theoretical filling height corresponding to the volume of the filled liquid medicine according to a preset filling matching relationship.

[0038] The theoretical filling height refers to the height that the liquid in the packaging bag theoretically needs to reach when the filling volume of liquid is filled into the packaging bag. Different filling liquid volumes correspond to different theoretical filling heights. The filling matching relationship between the two is determined by the staff through multiple tests in advance.

[0039] Step S202: Calculate the difference between the theoretical filling height and the actual height of the liquid medicine to determine the filling deviation height.

[0040] The filling deviation height is the difference between the theoretical filling height and the actual height of the liquid medicine, and the difference is an absolute value.

[0041] Step S203: Determine whether the filling deviation height is greater than a preset allowable deviation height.

[0042] The permissible deviation height is the maximum filling deviation height allowed when the staff determines that the filling of the drug solution is normal without damage to the packaging bag or tilted installation of the packaging bag. The purpose of the judgment is to know whether the filling of the drug solution is normal.

[0043] Step S2031: If the filling deviation height is not greater than the allowable deviation height, a normal filling signal is output and the exhaust device is controlled to move.

[0044] When the filling deviation height is not greater than the permissible deviation height, it indicates that there is no abnormality in the packaging bag. At this time, a normal filling signal is output to control the exhaust device to perform exhaust operations.

[0045] Step S2032: If the filling deviation height is greater than the allowable deviation height, an abnormal filling signal is output.

[0046] When the filling deviation height is greater than the allowable deviation height, it indicates that abnormal filling exists. At this time, an abnormal filling signal is output to identify the situation, so as to facilitate subsequent processing of the situation.

[0047] Reference Figure 3 After the normal filling signal is output, the method for exhausting the Chinese medicine liquid packaging bag also includes: Step S300: establishing a parallel detection path according to the exhaust points, and determining detection points on the parallel detection path according to a preset unit distance.

[0048] After the normal filling signal is output, there may be residual liquid at other points on the packaging bag that are on the same horizontal line as the exhaust point, which requires further analysis; the parallel detection path is the device movement path that starts from the exhaust point and moves along the left or right side until there are no obstacles between the opposing devices and then turns around and moves to a point where there are no obstacles between the opposing devices; the unit distance is a fixed distance set by the staff, and the detection point can be established to mark the point on the same horizontal line as the exhaust point for subsequent analysis.

[0049] Step S301: controlling the shooting device to move along the parallel detection path to obtain the shooting status at the detection point.

[0050] By controlling the movement of the shooting device, the shooting state of the shooting device at the detection point can be obtained, so that the liquid residue on the inner side wall of the packaging bag can be known.

[0051] Step S302: When the opposing beam state and the successful reception state are consistent, the corresponding detection point is defined as a successful point, and counting is performed according to the successful point to determine the number of successes, and counting is performed according to the detection point to determine the number of detections.

[0052] The detection points corresponding to the consistent shooting state and successful reception state are defined as successful points to identify different detection points for subsequent analysis; the number of successes is the total number of determined successful points, and the number of detections is the total number of determined detection points.

[0053] Step S303: Calculate the success rate based on the number of successes and the number of detections.

[0054] The success rate is the ratio of successful points to all test points, which is determined by dividing the number of successes by the number of tests.

[0055] Step S304: Determine whether the success rate is greater than the preset demand rate.

[0056] The demand ratio is the minimum success ratio set by the staff to determine whether the packaging bag can be better vented without affecting the total amount of Chinese medicine. The purpose of the judgment is to find out whether the packaging bag can be better vented.

[0057] Step S3041: If the success ratio is greater than the demand ratio, the exhaust device is controlled to move.

[0058] When the success rate is greater than the demand rate, it means that the packaging bags can be well exhausted at present, and the exhaust device can be controlled to move normally.

[0059] Step S3042: If the success rate is not greater than the required rate, the exhaust point is updated based on the actual height of the liquid medicine and the preset correction distance, and the success rate is determined again until the success rate is greater than the required rate.

[0060] When the success rate is not greater than the demand rate, it means that when the packaging bag is vented through the horizontal line of the exhaust point, there is more liquid residue on the inner wall of the packaging bag, which will cause the exhaust process to affect the total amount of Chinese medicine liquid. Therefore, the exhaust point is raised by adding the actual height of the liquid to the correction distance, so that the actual operating level of the exhaust device can be readjusted to improve the overall exhaust operation effect; the correction distance is a fixed distance set by the staff.

[0061] Reference Figure 4 After the abnormal filling signal is output, the method for exhausting the Chinese medicine liquid packaging bag also includes: Step S400: Establish a parallel detection path according to the exhaust point, determine two boundary points according to the parallel detection path, and determine the detection lateral width according to the boundary points.

[0062] The boundary points are the points where there are no obstacles on both sides when the shooting device moves parallel to the parallel detection path, that is, the two boundary points of the packaging bag in the width direction. The detected lateral width is the current width value of the packaging bag that can be used for lateral detection by the shooting device, that is, the straight-line distance value between the two boundary points.

[0063] Step S401: performing a difference calculation based on the detected transverse width and the preset transverse width of the package to determine the difference transverse width.

[0064] The transverse width of the package is the width of the package bag input in advance by the staff, that is, the width that the package bag can reach after being normally fixed and filled with liquid. The difference transverse width is the difference between the detected transverse width and the transverse width of the package, and the difference is an absolute value.

[0065] Step S402: Determine whether the difference lateral width is smaller than a preset reference allowable width.

[0066] The reference permissible width is the maximum difference in lateral width allowed when the packaging bag is placed normally without a large tilt, as set by the staff. The purpose of the judgment is to find out whether the packaging bag is placed at an angle.

[0067] Step S4021: If the difference lateral width is not less than the reference permissible width, a packaging tilt signal is output.

[0068] When the difference lateral width is not less than the reference permissible width, it indicates that the packaging bag is severely tilted. At this time, a packaging tilt signal is output to identify the situation for subsequent analysis.

[0069] Step S4022: If the difference lateral width is smaller than the reference permissible width, it is determined whether the filling deviation height is greater than a preset upper limit deviation height.

[0070] When the differential lateral width is smaller than the reference permissible width, it indicates that the packaging bag is placed normally. At this time, the packaging bag may be damaged and liquid may be leaking, which requires further analysis. The upper limit deviation height is the minimum filling deviation height set by the staff to determine that a large deviation in the liquid volume in the packaging bag is required.

[0071] Step S40221: If the filling deviation height is greater than the upper limit deviation height, a bag damage signal is output.

[0072] When the filling deviation height is greater than the upper limit deviation height, it means that there is a large difference between the volume of liquid poured into the packaging bag and the existing volume of liquid in the packaging bag, that is, the packaging bag is damaged. Therefore, a packaging bag damage signal is output to identify the situation, so as to facilitate staff intervention and processing.

[0073] Step S40222: If the filling deviation height is not greater than the upper limit deviation height, an insufficient filling signal is output.

[0074] When the filling deviation height is not greater than the upper limit deviation height, it indicates that the packaging bag is not damaged. In this case, the insufficient liquid volume may be caused by inaccurate counting of the liquid outlet flow device of the filling device. Therefore, an insufficient filling signal is output to identify the situation for subsequent analysis.

[0075] Reference Figure 5 After the packaging tilt signal is output, the method for exhausting the Chinese medicine liquid packaging bag also includes: Step S500: Acquire the liquid filling area.

[0076] The liquid filling area is the area in the packaging bag filled with Chinese medicine liquid. It can be determined by acquiring an image of the packaging bag and performing feature analysis to determine the liquid filling area, or it can be determined by the method of steps S600 to S6042.

[0077] Step S501: Determine the internal volume of the package according to the liquid filling area, and perform a difference calculation based on the internal volume of the package and the volume of the filled liquid to determine the filling deviation volume.

[0078] The internal volume of the package refers to the volume of the Chinese medicinal liquid corresponding to the liquid filling area. Different liquid filling areas should correspond to different internal volumes of the package, which can be determined by multiplying the area by the set thickness parameter. The thickness parameter is the thickness value that the packaging bag will reach after liquid filling; the filling deviation volume is the difference between the internal volume of the package and the volume of the filled medicinal liquid, and the difference is an absolute value.

[0079] Step S502: Determine whether the filling deviation volume is less than a preset reasonable deviation volume.

[0080] The reasonable deviation volume is the maximum filling deviation volume that can be achieved when the staff determines that the liquid filling is normal. The purpose of the judgment is to know whether the current filling of the liquid is normal.

[0081] Step S5021: If the filling deviation volume is smaller than the reasonable deviation volume, a normal tilt signal is output.

[0082] When the filling deviation volume is smaller than the reasonable deviation volume, it indicates that there is no problem with the internal liquid volume, that is, only the packaging bag is tilted. At this time, a normal tilt signal is output to identify the situation for subsequent analysis.

[0083] Step S5022: If the filling deviation volume is not less than the reasonable deviation volume, an abnormal tilt signal is output.

[0084] When the filling deviation volume is not less than the reasonable deviation volume, it means that there is not only a problem of packaging bag tilting, but also problems such as packaging bag damage and leakage. At this time, an abnormal tilt signal is output to identify the situation, which is convenient for subsequent processing and analysis.

[0085] Reference Figure 6 , further comprising a step of determining a liquid filling area, the step comprising: Step S600: The two boundary points are defined as original points, and the parallel detection path corresponding to the two original points is defined as the original detection path, and the original detection path is adjusted downward according to a preset adjustment height to reconstruct the parallel detection path.

[0086] The original point and the original detection path are defined to facilitate the distinction of different data and subsequent analysis; the height adjustment is the height value set by the staff to adjust the original detection path downward. This value is a fixed value. The specific situation of the packaging bag can be known by reconstructing the parallel detection path.

[0087] Step S601: Control the beam-forming device to move on the new parallel detection path to determine a boundary point, and define the current boundary point as a replacement point.

[0088] Define replacement points to distinguish the current boundary points from the previous original points for subsequent analysis.

[0089] Step S602: performing distance calculation based on the original point and the replacement point to determine the distance between the points, and determining the distance between the points with the smallest value based on a preset sorting rule, and defining the replacement point corresponding to the distance between the points as the binding point of the original point.

[0090] The point distance is the straight-line distance between a single original point and a single replacement point. The sorting rule is a method set by the staff to sort the values, such as the bubble method. The sorting rule can be used to determine the point distance with the smallest value, that is, the replacement point under this point distance is on the same side as the previous original point. In this case, it can be defined as a binding point.

[0091] Step S603: Determine the extension direction according to the original point and the binding point, and establish a penetrating ray starting from the original point and heading toward the extension direction and penetrating the binding point.

[0092] The extension direction is the direction from the original point to the binding point. A penetrating ray is established to determine the boundary line of the packaging bag for subsequent analysis.

[0093] Step S604: Determine whether there is an intersection between two penetrating rays.

[0094] The purpose of the judgment is to know whether the lowest point of the packaging bag can be determined.

[0095] Step S6041: If there is no intersection between the two penetrating rays, the replacement point is updated to a new original point, and the original detection path is updated again until there is an intersection between the two penetrating rays.

[0096] When there is no intersection between the two penetrating rays, it means that the lowest point of the packaging bag cannot be determined. At this time, the original detection path can be continuously updated until the lowest point of the packaging bag can be determined.

[0097] Step S6042: If there is an intersection between the two penetrating rays, the liquid filling area is determined according to the parallel detection path determined for the first time and all the penetrating rays.

[0098] When two penetrating rays intersect, it means that the lowest point of the packaging bag can be determined. At this time, the boundary line of the area with liquid on the packaging bag is determined. At this time, the liquid filling area can be determined based on all penetrating rays and parallel detection paths. The determination process refers to Figure 7 .

[0099] Reference Figure 8 After the distance between the points is determined, the method for exhausting the Chinese medicine liquid packaging bag also includes: Step S700: Determine whether the distances between two points determined by a single original point are equal.

[0100] The purpose of the judgment is to find out whether the binding point can be directly determined.

[0101] Step S7001: If the distances between two points determined by a single original point are not equal, the binding point of the original point is determined according to the distance between the points.

[0102] When the distances between two points determined by a single original point are not equal, it means that there is only one identifiable binding point. In this case, the binding point can be determined normally.

[0103] Step S7002: If the two points determined by a single original point are equidistant from each other, a first boundary line segment is determined based on the original point and any alternative point, and a second boundary line segment is determined based on another original point and another alternative point.

[0104] When the two points determined by a single original point are equidistant from each other, it means that both alternative points are likely to be binding points, and further analysis is required. A first boundary line segment and a second boundary line segment are established to register the binding of the two original points and the two alternative points, which is convenient for subsequent analysis. Step S701: Determine a replacement point corresponding to an original point when there is no intersection between the first boundary line segment and the second boundary line segment as a binding point.

[0105] When there is no intersection between the first boundary line segment and the second boundary line segment, it means that both line segments are on the boundary line of the packaging bag, that is, the current corresponding relationship is accurate, and the binding point of the original point can be determined based on the first boundary line segment and the second boundary line segment.

[0106] Reference Fig. 9 Based on the same inventive concept, an embodiment of the present invention provides an exhaust system for a traditional Chinese medicine liquid packaging bag, comprising: The acquisition module is used to obtain the filling status of the liquid medicine; A processing module, connected to the acquisition module and the judgment module, for storing and processing information; A judgment module, connected with the acquisition module and the processing module, for judging the information; When the judging module judges that the filling state of the liquid medicine is consistent with the preset filling completion state, the processing module controls the shooting devices on both sides of the packaging bag to move upward at the preset original position, and enables the acquisition module to obtain the shooting state and shooting movement distance of the shooting devices in real time; When the judging module judges that the shooting state is consistent with the preset successful receiving state, the processing module determines the exhaust point according to the current shooting moving distance and the original position, and calculates according to the exhaust point and the preset overall length of the package to determine the exhaust moving distance; The processing module controls the preset exhaust device to move to the exhaust point and clamp the packaging bag, and controls the exhaust device to move upwards for an exhaust movement distance; Filling situation analysis module, used to analyze and process the filling situation of the liquid in the packaging bag; Liquid residue analysis module, which analyzes and processes the situation of liquid residue on the packaging bag; Packaging abnormality analysis module, which analyzes and processes abnormal conditions of packaging bags; The package tilt analysis module analyzes and determines whether the package bag is tilted when placed; A liquid filling area determination module, used to determine the liquid filling area when the packaging bag is tilted; The binding point determination module is used to determine a more appropriate binding point.

[0107] Those skilled in the art can clearly understand that for the convenience and simplicity of description, only the division of the above-mentioned functional modules is used as an example. In actual applications, the above-mentioned functions can be assigned to different functional modules as needed, 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 aforementioned method embodiment, and will not be repeated here.

Claims

1. A method for venting a traditional Chinese medicine liquid packaging bag, characterized in that: include: Get the liquid medicine filling status; When the liquid medicine filling state is consistent with the preset filling completion state, the shooting devices on both sides of the packaging bag are controlled to move upward at the preset original position, and the shooting state and shooting moving distance of the shooting devices are obtained in real time; When the shooting state is consistent with the preset successful receiving state, the exhaust point is determined according to the current shooting moving distance and the original position, and the exhaust moving distance is determined by calculation according to the exhaust point and the preset overall length of the package; The preset exhaust device is controlled to move to the exhaust point and clamp the packaging bag, and the exhaust device is controlled to move upwards for the exhaust movement distance.

2. The method for venting a traditional Chinese medicine liquid packaging bag according to claim 1, characterized in that: When the shooting state is consistent with the preset successful receiving state and the exhaust point is determined, the exhaust method of the Chinese medicine liquid packaging bag also includes: Determine the actual height of the liquid medicine according to the current exhaust point and obtain the volume of the liquid medicine filled; Determine the theoretical filling height corresponding to the volume of the filling liquid according to the preset filling matching relationship; Calculate the difference between the theoretical filling height and the actual liquid medicine height to determine the filling deviation height; Determine whether the filling deviation height is greater than the preset allowable deviation height; If the filling deviation height is not greater than the permissible deviation height, a normal filling signal is output and the exhaust device is controlled to move; If the filling deviation height is greater than the allowable deviation height, an abnormal filling signal is output.

3. The method for venting a traditional Chinese medicine liquid packaging bag according to claim 2, characterized in that: After the normal filling signal is output, the method for exhausting the Chinese medicine liquid packaging bag also includes: Establishing a parallel detection path according to the exhaust point, and determining the detection point on the parallel detection path according to a preset unit distance; Controlling the shooting device to move along the parallel detection path to obtain the shooting status at the detection point; When the shooting state is consistent with the successful receiving state, the corresponding detection point is defined as a successful point, and the number of successes is determined by counting the successful points, and the number of detections is determined by counting the detection points; Calculate the success rate based on the number of successes and the number of tests; Determine whether the success rate is greater than the preset demand rate; If the success ratio is greater than the demand ratio, the exhaust device is controlled to move; If the success ratio is not greater than the required ratio, the exhaust point is updated based on the actual height of the liquid medicine and the preset correction distance, and the success ratio is judged again until the success ratio is greater than the required ratio.

4. The method for venting a traditional Chinese medicine liquid packaging bag according to claim 3, characterized in that: After the abnormal filling signal is output, the method for venting the Chinese medicine liquid packaging bag also includes: Establishing a parallel detection path according to the exhaust point, determining two boundary points according to the parallel detection path, and determining the detection lateral width according to the boundary points; Calculate the difference between the detected transverse width and the preset transverse width of the package to determine the difference transverse width; Determine whether the difference lateral width is less than a preset reference permissible width; If the difference lateral width is not less than the reference permissible width, a packaging tilt signal is output; If the difference lateral width is smaller than the reference permissible width, it is determined whether the filling deviation height is greater than the preset upper limit deviation height; If the filling deviation height is greater than the upper limit deviation height, a bag damage signal is output; If the filling deviation height is not greater than the upper limit deviation height, an insufficient filling signal is output.

5. The method for venting a traditional Chinese medicine liquid packaging bag according to claim 4, characterized in that: After the packaging tilt signal is output, the method for exhausting the Chinese medicine liquid packaging bag also includes: Get the liquid filled area; Determine the internal volume of the package according to the liquid filling area, and perform a difference calculation based on the internal volume of the package and the volume of the filled liquid to determine the filling deviation volume; Determine whether the filling deviation volume is less than the preset reasonable deviation volume; If the filling deviation volume is less than the reasonable deviation volume, a normal tilt signal is output; If the filling deviation volume is not less than the reasonable deviation volume, an abnormal tilt signal is output.

6. The method for venting a traditional Chinese medicine liquid packaging bag according to claim 5, characterized in that: The method further includes a step of determining a liquid-filled area, the step comprising: The two boundary points are defined as original points, and the parallel detection path corresponding to the two original points is defined as the original detection path, and the original detection path is adjusted downward according to a preset adjustment height to reconstruct the parallel detection path; Controlling the shooting device to move on the new parallel detection path to determine the boundary point, and defining the current boundary point as a replacement point; Perform distance calculation based on the original point and the replacement point to determine the distance between the points, and determine the distance between the points with the smallest value based on the preset sorting rules, and define the replacement point corresponding to the distance between the points as the binding point of the original point; Determine the extension direction according to the original point and the binding point, and establish a penetrating ray with the original point as the starting point, which is directed toward the extension direction and passes through the binding point; Determine whether there is an intersection between two penetrating rays; If the two penetrating rays do not have an intersection, the replacement point is updated to a new original point, and the original detection path is updated again until the two penetrating rays have an intersection; If there is an intersection point between the two penetrating rays, the liquid filling area is determined based on the parallel detection path determined for the first time and all the penetrating rays.

7. The method for venting a traditional Chinese medicine liquid packaging bag according to claim 6, characterized in that: After the distance between the points is determined, the method for exhausting the Chinese medicine liquid packaging bag also includes: Determine whether the distances between two points determined by a single original point are equal; If the distances between the two points determined by a single original point are not equal, the binding point of the original point is determined according to the distance between the points; If the two points determined by a single original point are equidistant from each other, a first boundary line segment is determined based on the original point and any alternative point, and a second boundary line segment is determined based on another original point and another alternative point; When there is no intersection between the first boundary line segment and the second boundary line segment, a replacement point corresponding to the original point is determined as a binding point.

8. A traditional Chinese medicine liquid packaging bag exhaust system, characterized in that: include: The acquisition module is used to obtain the filling status of the liquid medicine; A processing module, connected to the acquisition module and the judgment module, for storing and processing information; A judgment module, connected with the acquisition module and the processing module, for judging the information; When the judging module judges that the filling state of the liquid medicine is consistent with the preset filling completion state, the processing module controls the shooting devices on both sides of the packaging bag to move upward at the preset original position, and enables the acquisition module to obtain the shooting state and shooting movement distance of the shooting devices in real time; When the judging module judges that the shooting state is consistent with the preset successful receiving state, the processing module determines the exhaust point according to the current shooting moving distance and the original position, and calculates according to the exhaust point and the preset overall length of the package to determine the exhaust moving distance; The processing module controls the preset exhaust device to move to the exhaust point and clamp the packaging bag, and controls the exhaust device to move upwards by an exhaust movement distance.

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