Retail wholesale channel supervision system based on cloud platform

Abstract

The invention relates to the technical field of air tightness detection, in particular to a retail wholesale channel supervision system based on a cloud platform, which comprises a detection room, a detection module, a processing module and a processing module, comprising a space simulation assembly, an internal pressure test assembly used for simulating an internal air pressure environment of a packaging sample, and a recess test assembly used for detecting the recess depth of the packaging sample; the environment simulation module is used for simulating different storage conditions of the packaging samples and comprises a low-pressure simulation assembly for simulating a low-pressure environment of the packaging samples by extracting gas in the internal space of the detection chamber and a low-temperature simulation assembly for simulating a low-temperature environment of the packaging samples by absorbing heat in the internal space of the detection chamber; and the control module is used for determining a sample with unqualified gas tightness according to the gas permeability. The accuracy of package air tightness detection is improved, cloud management and control can be realized, and the quality of channel commodities is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of air tightness detection, and in particular to a retail and wholesale channel supervision system based on a cloud platform. Background Art

[0002] With the development of computer technology and Internet technology, cloud platforms have been introduced into various industries. For example, in the field of retail supervision, information about channel supply goods and quality inspection information of goods can be obtained through cloud platforms. Some cloud platforms are interconnected with quality inspection systems, which can quickly obtain inspection information and realize quality supervision. In actual situations, for retail and wholesale, most of them are sealed products. Therefore, the inspection of sealed products is very important. There are several technologies that are widely used to detect the airtightness of packaging: water immersion method puts the package into water to observe whether bubbles are generated. If there is air leakage in the package, the water immersion method is used to observe the bubbles escaping from the leakage point. This method is low-cost, but it can only perform qualitative detection and cannot quantitatively analyze the degree of leakage; the pressure difference method is used to determine the airtightness of the package by creating a pressure difference between the inside and outside of the package and then measuring the pressure change. This method can quantitatively analyze the leakage rate and is suitable for automated detection; a specific dye solution is sprayed on the surface of the package. If the package leaks, the dye will penetrate into the inside of the package. After that, the leakage is determined by observing whether there are traces of dye inside the package; the vacuum detection method is used to place the package in a vacuum environment. If the package is not leaking, the package will change shape due to the pressure difference between the inside and outside. The airtightness is determined by observing the change in the shape of the package.

[0003] Chinese Patent Publication No.: CN114910223A discloses an airtightness detection machine for food packaging bags, including a fixed seat, an up-and-down swing mechanism, a clamping and wiping detection module, a fixed bracket and a perfusion and suction mechanism, wherein the fixed bracket is arranged on one side of the fixed seat and the top extends to the top of the fixed seat, the up-and-down swing mechanism is arranged on the fixed seat, the clamping and wiping detection module is arranged on the up-and-down swing mechanism, and the perfusion and suction mechanism is arranged at the top of the fixed bracket and located above the clamping and wiping detection module. It can be seen that the airtightness detection machine for food packaging bags has the problem that the air pressure and temperature drop during the transportation of biscuits to high altitude areas accelerates the gas escape rate in the packaging bag, thereby reducing the accuracy of detecting the airtightness of the packaging. Summary of the invention

[0004] To this end, the present invention provides a retail and wholesale channel supervision system based on a cloud platform to overcome the problem in the prior art that the gas escape rate in the packaging bag is accelerated due to the decrease in air pressure and temperature during the transportation of biscuits to high altitude areas, thereby reducing the accuracy of detecting the air tightness of the packaging.

[0005] To achieve the above objectives, the present invention provides a retail and wholesale channel supervision system based on a cloud platform, including a testing room and:

[0006] A detection module, which is connected to the detection chamber and is used to detect the air tightness of the packaging sample provided by the channel supply end, including a space simulation component for providing a simulated biscuit packaging space for the packaging sample, an internal pressure test component connected to the space simulation component for simulating the internal air pressure environment of the packaging sample, and a concave test component arranged below the space simulation component for detecting the concave depth of the packaging sample;

[0007] An environmental simulation module, which is connected to the detection chamber and used to simulate different storage conditions of the packaged sample, including a low-pressure simulation component arranged on the outer wall of the detection chamber to simulate the low-pressure environment of the packaged sample by extracting gas from the internal space of the detection chamber, and a low-temperature simulation component connected to the outer wall of the detection chamber to simulate the low-temperature environment of the packaged sample by absorbing heat from the internal space of the detection chamber;

[0008] a control module, which is connected to the detection module and the environmental simulation module respectively, and is used to control the low-temperature simulation component and the low-pressure simulation component to perform gradient tests of several temperatures and external air pressures on the packaging samples, determine the gas permeability according to the internal air pressure and the initial internal air pressure of the simulated biscuit packaging space obtained by the gradient test, and determine the airtightness unqualified samples according to the gas permeability;

[0009] The cloud upload module is connected to the control module to record the basic information of the samples that fail the airtightness test and upload them to the cloud platform.

[0010] Furthermore, the space simulation component includes:

[0011] A placement groove for supporting the packaged sample, wherein a card slot having the same length as the side wall is provided on the upper surface of each side wall of the placement groove, and the card slots on the upper surface of each side wall are interconnected;

[0012] A sealing strip, which is arranged above the placement groove and is engaged with the card slot when the packaged sample is placed on the placement groove to seal the inner groove space between the packaged sample and the placement groove;

[0013] The sealing strip and the card slot are arranged at the same spatial position and have the same length as the card slot.

[0014] Furthermore, the internal pressure test assembly comprises:

[0015] An air pump, which is arranged on the inner wall of the placement tank and is used to adjust the internal air pressure of the space in the placement tank;

[0016] The internal pressure sensor is arranged on the inner wall of the placement groove to detect the internal air pressure of the space in the groove.

[0017] Furthermore, the dent test assembly comprises:

[0018] An infrared sensor is arranged above the placement slot to detect the concave depth of the packaged sample in the placement slot area;

[0019] A lifting platform is arranged below the placement slot and is used for adjusting the vertical height of the placement slot.

[0020] Furthermore, the low voltage simulation component comprises:

[0021] A negative pressure pump is arranged above the placement slot to adjust the external air pressure of the internal space of the detection chamber;

[0022] The external pressure sensor is arranged above the placement groove and is used to detect the external air pressure in the internal space of the detection chamber.

[0023] Furthermore, the low temperature simulation component comprises:

[0024] A cold water circulation pipe, which is arranged above the placement tank and absorbs the heat in the detection chamber by circulating cold water;

[0025] A refrigerator connected to the cold water circulation pipe to adjust the temperature of the cold water;

[0026] A temperature sensor is arranged above the placement slot and is used to detect the temperature in the detection chamber.

[0027] Furthermore, the control module is connected to the low-pressure simulation component and the low-temperature simulation component respectively, so as to reduce the initial external air pressure and initial temperature of the internal space of the detection chamber in a gradient manner according to the air pressure and temperature at different altitudes, and record the gas permeability detection result under each gradient.

[0028] Among them, in the gradient test, when the external air pressure and temperature of the internal space of the detection chamber reach the air pressure and temperature corresponding to the target test altitude, if the gas permeability detected at this time is greater than the preset gas permeability, the control module determines that the packaging sample is an airtightness unqualified sample.

[0029] Furthermore, the gas permeability is the ratio of the difference between the internal air pressure at the start time and the internal air pressure at the end time of a single gradient test to the internal air pressure at the start time.

[0030] Furthermore, the control module is connected to the depression test assembly, and the lifting platform drives the package sample to rise so as to detect the depression depth of the package sample at the end of the gradient test.

[0031] If the concave depth of the packaging sample is less than a preset concave depth, the sample with unqualified airtightness will be marked as an aging sample.

[0032] Furthermore, the control module is also used to generate a gas permeability change curve of the packaged sample according to the gas permeability, determine the change amount of the gas permeability in the corresponding simulation environment according to the gas permeability change curve, and correct the shelf life of the biscuits according to the change amount of the gas permeability;

[0033] Among them, the shelf life of the biscuits is negatively correlated with the change in the gas permeability.

[0034] Compared with the prior art, the beneficial effects of the present invention are that, by setting a detection module, an environmental simulation module and a control module, and by setting a sealed detection chamber, the airtightness detection system can quickly reach the set detection pressure, shorten the detection cycle, improve the detection efficiency, and increase the accuracy of the detection result; by setting an internal pressure test component, by fixing the packaging sample, simulating the internal environment of the biscuit packaging, the performance of the packaging under extreme conditions is evaluated, and the stability of the detection result is improved; by setting a depression test component, the aging degree of the packaging sample increases due to the long storage time during the detection process, resulting in a significant decrease in airtightness, and by detecting the aging performance of the packaging sample, the influence of the aging degree of the packaging sample on the change of the airtightness of the packaging in the environmental simulation is detected, and the accuracy of the detection result is improved; by setting a low-pressure simulation component and a low-temperature simulation component, it is detected whether the airtightness of the packaging sample under different storage conditions meets the requirements, and the performance of the packaging sample under various pressures and temperatures is output, thereby reducing the biscuit loss rate caused by leakage of the biscuit packaging bag due to biscuit storage environment factors.

[0035] Furthermore, the system of the present invention is equipped with a space simulation component, an air pump and a pressure sensor, and seals the packaged sample in a placement groove, and detects the pressure change in the groove to detect the airtightness of the packaged sample under different conditions. The pressure change directly reflects the sealing condition of the packaged sample, thereby improving the stability of the detection result.

[0036] Furthermore, the system of the present invention provides a negative pressure pump and a cold water circulation pipe, and changes the pressure and temperature in the detection room space to simulate the changes in storage conditions when biscuits are transported to plateau areas, detects the sealing performance under extreme environments, and outputs the changes in the airtightness of the packaging samples, thereby improving the efficiency of packaging airtightness detection.

[0037] Furthermore, the system of the present invention sets a preset gas permeability and screens packaging samples with unqualified airtightness, thereby improving the quality control of packaging and reducing the loss rate caused by unqualified packaging. At the same time, it provides data for optimizing packaging, detects packaging samples through gradient adjustment parameters, simulates the changes in airtightness of packaging samples under different conditions, and improves the accuracy of the test results.

[0038] Furthermore, the system of the present invention sets a preset concave depth. Due to the different storage times of the packaging samples, it is determined that the storage time of the batch of the packaging samples is too long, resulting in a decrease in air tightness. The mechanical properties of the packaging samples that do not meet the air tightness requirements are re-tested, thereby improving the accuracy of the air tightness detection of biscuit packaging. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 This is an overall structural block diagram of a retail and wholesale channel supervision system based on a cloud platform according to an embodiment of the present invention;

[0040] Figure 2 This is an overall structural diagram of a retail and wholesale channel supervision system based on a cloud platform according to an embodiment of the present invention;

[0041] Figure 3 This is a structural block diagram of a detection module of a retail and wholesale channel supervision system based on a cloud platform according to an embodiment of the present invention;

[0042] Figure 4 This is a structural block diagram of an environment simulation module of a retail and wholesale channel supervision system based on a cloud platform according to an embodiment of the present invention;

[0043] Explanation of the accompanying drawings: 1-testing chamber, 2-external pressure sensor, 3-negative pressure pump, 41-first tension sensor, 4-infrared sensor, 5-internal pressure sensor, 6-placing slot, 7-lifting platform, 8-air pump, 9-refrigerator, 10-cold water circulation pipe, 11-sealing strip, 12-packaging sample, 13-cold water tank. DETAILED DESCRIPTION

[0044] In order to make the objects and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with embodiments; 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.

[0045] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0046] It should be noted that, in the description of the present invention, terms such as "up", "down", "left", "right", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is merely for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0047] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0048] See also Figure 1 , Figure 2 , Figure 3 as well as Figure 4 As shown, they are respectively an overall structural block diagram, an overall structural diagram, a detection module structural block diagram and an environmental simulation module structural block diagram of a retail and wholesale channel supervision system based on a cloud platform according to an embodiment of the present invention. A retail and wholesale channel supervision system based on a cloud platform according to an embodiment of the present invention comprises a detection room 1, and also comprises:

[0049] A detection module, which is connected to the detection chamber 1 and is used to detect the air tightness of the packaged sample 12 provided by the channel supply end, including a space simulation component for providing a simulated biscuit packaging space for the packaged sample 12, an internal pressure test component connected to the space simulation component for simulating the internal air pressure environment of the packaged sample 12, and a concave test component arranged below the space simulation component for detecting the concave depth of the packaged sample 12;

[0050] An environmental simulation module, which is connected to the detection chamber 1 and is used to simulate different storage conditions of the packaged sample 12, including a low-pressure simulation component arranged on the outer wall of the detection chamber 1 to simulate the low-pressure environment of the packaged sample 12 by extracting gas from the internal space of the detection chamber 1, and a low-temperature simulation component connected to the outer wall of the detection chamber 1 to simulate the low-temperature environment of the packaged sample 12 by absorbing heat from the internal space of the detection chamber 1;

[0051] A control module is connected to the detection module and the environmental simulation module respectively, and is used to control the low-temperature simulation component and the low-pressure simulation component to perform gradient tests of several temperatures and external air pressures on the packaging sample 12, and determine the gas permeability according to the internal air pressure and the initial internal air pressure of the simulated biscuit packaging space obtained by the gradient test, and determine the airtightness unqualified sample according to the gas permeability.

[0052] The cloud upload module is connected to the control module to record the basic information of the samples that fail the airtightness test and upload them to the cloud platform.

[0053] Specifically, the basic information of the airtightness-unqualified samples recorded by the cloud upload module includes the product name corresponding to the unqualified samples and the name of the retail and wholesale channel. Of course, those skilled in the art can also set it according to specific needs, which will not be repeated here.

[0054] Specifically, the packaging sample 12 is essentially an unwrapped plastic film or degradable plastic used to package biscuits.

[0055] Specifically, the control module may be a PLC controller or an industrial computer.

[0056] In practice, the system of the present invention sets a detection module, an environmental simulation module and a control module, and sets a sealed detection chamber 1, so that the airtightness detection system can quickly reach the set detection pressure, shorten the detection cycle, improve the detection efficiency, and increase the accuracy of the detection result; by setting an internal pressure test component, the packaging sample 12 is fixed to simulate the internal environment of the biscuit packaging, so as to evaluate the performance of the packaging under extreme conditions, thereby improving the stability of the detection result; by setting a depression test component, the aging degree of the packaging sample 12 increases due to the long storage time during the detection process, resulting in a significant decrease in airtightness. By detecting the aging performance of the packaging sample 12, the influence of the aging degree of the packaging sample 12 on the change of the airtightness of the packaging in the environmental simulation is detected, thereby improving the accuracy of the detection result; by setting a low-pressure simulation component and a low-temperature simulation component, it is detected whether the airtightness of the packaging sample 12 under different storage conditions meets the requirements, and the performance of the packaging sample 12 under various pressures and temperatures is output, thereby reducing the biscuit loss rate caused by leakage of the biscuit packaging bag due to biscuit storage environment factors.

[0057] Specifically, the space simulation component includes:

[0058] A placement groove 6, used to support the packaging sample 12, wherein a card slot having the same length as the side wall is provided on the upper surface of each side wall of the placement groove 6, and the card slots on the upper surface of each side wall are interconnected;

[0059] A sealing strip 11 is disposed above the placement groove 6, and is engaged with the card groove when the packaged sample 12 is placed on the placement groove 6 to seal the groove space between the packaged sample 12 and the placement groove 6;

[0060] The sealing strip 11 and the card slot are arranged at the same spatial position and have the same length as the card slot.

[0061] Specifically, the size of the placement slot 6 is determined according to the size of the biscuits, and the length and width of the placement slot 6 are positively correlated with the length and width of the biscuits. The placement slot 6 of the present invention is a cube with an opening on the top as a preferred embodiment.

[0062] Specifically, the sealing strip 11 is arranged on the upper surface of the placement groove 6 along the contour line of the upper surface of the placement groove 6 .

[0063] Specifically, the internal pressure test assembly includes:

[0064] An air pump 8, which is arranged on the inner wall of the placement groove 6, and is used to adjust the internal air pressure of the space in the placement groove 6;

[0065] The internal pressure sensor 5 is arranged on the inner wall of the placement groove 6 to detect the internal air pressure of the space in the groove.

[0066] In practice, the system of the present invention sets up a space simulation component, an air pump 8 and a pressure sensor, seals the packaged sample 12 in the placement groove 6, detects the pressure change in the groove, and thus detects the airtightness of the packaged sample 12 under different conditions. The pressure change directly reflects the sealing condition of the packaged sample 12, thereby improving the stability of the detection result.

[0067] Specifically, the dent test assembly includes:

[0068] An infrared sensor 4, which is arranged above the placement groove 6, and is used to detect the concave depth of the packaged sample 12 in the area of ​​the placement groove 6;

[0069] The lifting platform 7 is arranged below the placement groove 6 to adjust the vertical height of the placement groove 6 .

[0070] Specifically, the infrared sensor 4 is disposed on the inner wall of the detection chamber 1 in the vertical direction of the center point of the lower surface of the placement slot 6 .

[0071] Specifically, the lifting platform 7 is an electric lifting rod with two ends connecting the bottom of the inner wall of the detection chamber 1 and the bottom of the placement groove 6.

[0072] Specifically, the low voltage simulation component includes:

[0073] A negative pressure pump 3, which is arranged above the placement slot 6 and is used to adjust the external air pressure of the internal space of the detection chamber 1;

[0074] The external pressure sensor 2 is arranged above the placement groove 6 to detect the external air pressure in the internal space of the detection chamber 1.

[0075] Specifically, the low temperature simulation component includes:

[0076] A cold water circulation pipe 10, which is arranged above the placement tank 6, and absorbs the heat in the detection chamber 1 by circulating cold water;

[0077] A refrigerator 9, which is connected to the cold water circulation pipe 10 and is used to adjust the temperature of the cold water;

[0078] A temperature sensor is disposed above the placement slot 6 to detect the temperature in the detection chamber 1 .

[0079] Specifically, the cold water circulation pipe 10 surrounds the interior of the detection chamber 1 above the placement tank 6 .

[0080] Specifically, the low temperature simulation component also includes a cold water tank 13 connected to the cooling circulation pipe and the refrigerator 9 for storing cold water.

[0081] Specifically, the refrigerator 9 performs heat exchange with the cold water in the cold water tank 13 by compressing and throttling the refrigerant inside the refrigerator 9 so that the refrigerant is converted from liquid to gas, thereby reducing the temperature of the cold water.

[0082] In practice, the system of the present invention provides a negative pressure pump 3 and a cold water circulation pipe 10, and changes the pressure and temperature in the detection chamber 1 to simulate the changes in storage conditions when the biscuits are transported to the plateau area, detects the sealing performance under extreme environments, and outputs the changes in the airtightness of the packaging sample 12, thereby improving the efficiency of packaging airtightness detection.

[0083] Specifically, the control module is connected to the low-pressure simulation component and the low-temperature simulation component respectively, and is used to reduce the initial external air pressure and initial temperature of the internal space of the detection chamber 1 in a gradient manner according to the air pressure and temperature at different altitudes, and record the gas permeability test results under each gradient.

[0084] Among them, in the gradient test, when the external air pressure and temperature of the internal space of the detection chamber 1 reach the air pressure and temperature corresponding to the target test altitude, if the gas permeability detected at this time is greater than the preset gas permeability, the control module determines that the packaging sample 12 is an airtightness unqualified sample.

[0085] Specifically, the gas permeability is the ratio of the difference between the internal air pressure at the start time and the internal air pressure at the end time of a single gradient test to the internal air pressure at the start time.

[0086] Specifically, the general value range of the preset gas permeability is [0.002, 0.006].

[0087] Preferably, the preset gas permeability is 0.003.

[0088] In practice, the system of the present invention sets a preset gas permeability and screens packaging samples 12 with unqualified airtightness, thereby improving the quality control of packaging and reducing the loss rate caused by unqualified packaging. At the same time, it provides data for optimizing packaging, detects packaging samples 12 through gradient adjustment parameters, simulates the changes in airtightness of packaging samples 12 under different conditions, and improves the accuracy of the test results.

[0089] Specifically, the control module is connected to the depression test assembly, and the lifting platform 7 drives the package sample 12 to rise so as to detect the depression depth of the package sample 12 at the end of the gradient test.

[0090] If the concave depth of the packaging sample 12 is less than the preset concave depth, the airtightness-unqualified sample is marked as an aging sample.

[0091] Specifically, the general value range of the preset concave depth is [0.2mm, 0.5mm].

[0092] Preferably, the preset concave depth is 0.4 mm.

[0093] Specifically, a preferred embodiment of increasing the rising height of the lifting platform 7 per unit time is that the height of the lifting platform 7 increases by 20 cm within 2 seconds.

[0094] In practice, the system of the present invention sets a preset concave depth. Due to the different storage times of the packaging samples 12, it is determined that the storage time of the batch of the packaging samples 12 is too long, resulting in a decrease in air tightness. The mechanical properties of the packaging samples 12 that do not meet the air tightness requirements are re-tested, thereby improving the accuracy of the air tightness detection of biscuit packaging.

[0095] Specifically, the control module is further used to generate a gas permeability change curve of the packaged sample 12 according to the gas permeability, determine the change amount of the gas permeability in the corresponding simulation environment according to the gas permeability change curve, and correct the shelf life of the biscuits according to the change amount of the gas permeability;

[0096] Among them, the shelf life of the biscuits is negatively correlated with the change in the gas permeability.

[0097] Specifically, the horizontal axis of the gas permeability change curve is temperature or external air pressure, and the vertical axis is gas permeability. The drawing of the gas permeability change curve is a technical means well known to those skilled in the art. Therefore, the drawing process of the gas permeability change curve and other details of the gas permeability change curve will not be repeated here.

[0098] Specifically, the average change in gas permeability is calculated based on the gas permeability of each gradient test, and the change in gas permeability at the target test altitude and target test temperature is calculated based on the average change in gas permeability; the change in gas permeability is the difference between the gas permeability at the target test altitude and at the target test temperature and the gas permeability at the reference test altitude and at the reference test temperature, the gas permeability at the target test altitude and target test temperature = the gas permeability at the reference test altitude and at the reference test temperature + the average change in gas permeability × the number of gradients, the number of gradients = (target test temperature - reference test temperature) / the temperature value reduced by a single gradient detection.

[0099] Specifically, the average change in gas permeability is calculated as:

[0100]

[0101] Where q is the change in gas permeability, q i is the gas permeability of the i-th gradient detection, q i-1 is the gas permeability of the i-1th gradient detection, and n is the number of gradient detections.

[0102] Specifically, the greater the change in gas permeability, the shorter the shelf life of the biscuits. When the gas permeability at the target test altitude and the target test temperature exceeds the gas permeability at the reference test altitude and the reference test temperature by less than 0.0002, the shelf life of the biscuits is shortened to 0.9 times the original. When the gas permeability at the target test altitude and the target test temperature exceeds the gas permeability at the reference test altitude and the reference test temperature by 0.0002, the biscuits are shortened for every additional 0.00001. The dry shelf life is shortened by one more day. For example, at an altitude of 1,500 meters, the atmospheric pressure is 867 hPa, the temperature is 20°C, and the gas permeability is 0.004. The shelf life of biscuits is 80 days. When the biscuit packages are planned to be transported to an area with an altitude of 1,600 meters, the air pressure is 860 hPa, and the temperature is 19.35°C, the gas permeability becomes 0.0042, and the change in gas permeability is 0.0002. Therefore, the shelf life of biscuits is shortened to 0.9 times the original value, becoming 80 days × 0.9 = 72 days.

[0103] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A retail and wholesale channel supervision system based on a cloud platform, including a testing room, characterized in that: Also includes: A detection module, which is connected to the detection chamber and is used to detect the air tightness of the packaging sample provided by the channel supply end, including a space simulation component for providing a simulated biscuit packaging space for the packaging sample, an internal pressure test component connected to the space simulation component for simulating the internal air pressure environment of the packaging sample, and a concave test component arranged below the space simulation component for detecting the concave depth of the packaging sample; An environmental simulation module, which is connected to the detection chamber and used to simulate different storage conditions of the packaged sample, including a low-pressure simulation component arranged on the outer wall of the detection chamber to simulate the low-pressure environment of the packaged sample by extracting gas from the internal space of the detection chamber, and a low-temperature simulation component connected to the outer wall of the detection chamber to simulate the low-temperature environment of the packaged sample by absorbing heat from the internal space of the detection chamber; a control module, which is connected to the detection module and the environmental simulation module respectively, and is used to control the low-temperature simulation component and the low-pressure simulation component to perform gradient tests of several temperatures and external air pressures on the packaging samples, determine the gas permeability according to the internal air pressure and the initial internal air pressure of the simulated biscuit packaging space obtained by the gradient test, and determine the airtightness unqualified samples according to the gas permeability; The cloud upload module is connected to the control module to record the basic information of the samples that fail the airtightness test and upload them to the cloud platform.

2. The cloud platform-based retail and wholesale channel supervision system according to claim 1 is characterized in that: The space simulation component includes: A placement groove for supporting the packaged sample, wherein a card slot having the same length as the side wall is provided on the upper surface of each side wall of the placement groove, and the card slots on the upper surface of each side wall are interconnected; A sealing strip, which is arranged above the placement groove and is engaged with the card slot when the packaged sample is placed on the placement groove to seal the inner groove space between the packaged sample and the placement groove; The sealing strip and the card slot are arranged at the same spatial position and have the same length as the card slot.

3. The cloud platform-based retail and wholesale channel supervision system according to claim 2 is characterized in that: The internal pressure test assembly comprises: An air pump, which is arranged on the inner wall of the placement tank and is used to adjust the internal air pressure of the space in the placement tank; The internal pressure sensor is arranged on the inner wall of the placement groove to detect the internal air pressure of the space in the groove.

4. The cloud platform-based retail and wholesale channel supervision system according to claim 3 is characterized in that: The dent test assembly comprises: An infrared sensor is arranged above the placement slot to detect the concave depth of the packaged sample in the placement slot area; A lifting platform is arranged below the placement slot and is used for adjusting the vertical height of the placement slot.

5. The cloud platform-based retail and wholesale channel supervision system according to claim 4 is characterized in that: The low voltage simulation component comprises: A negative pressure pump is arranged above the placement slot to adjust the external air pressure of the internal space of the detection chamber; The external pressure sensor is arranged above the placement groove and is used to detect the external air pressure in the internal space of the detection chamber.

6. The cloud platform-based retail and wholesale channel supervision system according to claim 5 is characterized in that: The low temperature simulation component comprises: A cold water circulation pipe, which is arranged above the placement tank and absorbs the heat in the detection chamber by circulating cold water; A refrigerator connected to the cold water circulation pipe to adjust the temperature of the cold water; A temperature sensor is arranged above the placement slot and is used to detect the temperature in the detection chamber.

7. The cloud platform-based retail and wholesale channel supervision system according to claim 6 is characterized in that: The control module is connected to the low-pressure simulation component and the low-temperature simulation component respectively, and is used to reduce the initial external air pressure and initial temperature of the internal space of the detection chamber in a gradient manner according to the air pressure and temperature at different altitudes, and record the gas permeability detection results under each gradient. Among them, in the gradient test, when the external air pressure and temperature of the internal space of the detection chamber reach the air pressure and temperature corresponding to the target test altitude, if the gas permeability detected at this time is greater than the preset gas permeability, the control module determines that the packaging sample is an airtightness unqualified sample.

8. The cloud platform-based retail and wholesale channel supervision system according to claim 7 is characterized in that: The gas permeability is the ratio of the difference between the internal air pressure at the start time and the internal air pressure at the end time of a single gradient test to the internal air pressure at the start time.

9. The cloud platform-based retail and wholesale channel supervision system according to claim 8 is characterized in that: The control module is connected to the depression test assembly, and drives the package sample to rise through the lifting platform to detect the depression depth of the package sample at the end of the gradient test. If the concave depth of the packaging sample is less than a preset concave depth, the sample with unqualified airtightness will be marked as an aging sample.

10. The cloud platform-based retail and wholesale channel supervision system according to claim 9, characterized in that: The control module is also used to generate a gas permeability change curve of the packaged sample according to the gas permeability, determine the change amount of the gas permeability in the corresponding simulation environment according to the gas permeability change curve, and correct the shelf life of the biscuits according to the change amount of the gas permeability; Among them, the shelf life of the biscuits is negatively correlated with the change in the gas permeability.

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