Chilled fresh meat processing system and method

Abstract

The invention relates to the technical field of chilled fresh meat processing, in particular to a chilled fresh meat processing system and method.The chilled fresh meat processing system comprises a storage warehouse used for storing a plurality of livestock carcasses of a single batch; the temperature module is used for refrigerating the repository; the humidity module is used for humidifying and dehumidifying the interior of the repository; comprising a fan; comprising a data input unit arranged at the input end of the storage library, and a data acquisition module of an image acquisition unit and an environment acquisition unit which are respectively arranged in the storage library; the judgment module is used for prolonging a first preset duration to a corresponding value when judging that the initial acid discharge of the livestock carcass does not meet a preset standard according to the carbon dioxide concentration characteristic change rate, or carrying out secondary judgment according to the lean meat percentage of the livestock carcass of the batch; and the control module is used for judging whether the acid discharge of the batch of livestock carcasses meets a preset standard or not according to the acid discharge effect characteristic coefficient. The processing efficiency of chilled fresh meat is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of meat processing, and in particular to a system and method for processing fresh chilled meat. Background Art

[0002] Chilled meat is also called chilled meat, deacidified meat or chilled deacidified meat. The processing technology of chilled meat includes slaughtering livestock that have passed quarantine, scalding and dehairing the carcasses, cooling and deacidifying the carcasses, cutting and packaging the carcasses, and selling them in circulation. Among them, cooling and deacidifying is an important part of chilled meat processing, which refers to the process of rapidly cooling the carcasses of livestock to a low temperature environment of 0 to 4°C and leaving them to stand at this temperature, so that biochemical substances such as lactic acid in the muscles can be decomposed and discharged, thereby improving the taste and flavor of the meat.

[0003] Chinese Patent Publication No.: CN118489825A, discloses a method for deacidifying beef to reduce harmful substances in meat. Technical problem: The method for deacidifying beef to reduce harmful substances in meat aims to solve the technical problems of the prior art that easily causes waste of beef, increases the cost of beef, microorganisms are prone to rapid reproduction, and cannot guarantee the quality and taste of beef. Technical solution: A method for deacidifying beef to reduce harmful substances in meat, the steps are as follows: Step 1: hanging pre-cooling; Step 2: thawing; Step 3: wrapping; Step 4: refrigerated deacidification. It can be seen that the control of the deacidification time and the deacidification environmental conditions in the above technical solution is not precise, the deacidification effect is poor, and thus leads to the problem of poor quality of fresh cold meat. Summary of the invention

[0004] To this end, the present invention provides a system and method for processing fresh chilled meat, so as to overcome the problem in the prior art that the acid removal time and the acid removal environment conditions are not accurately controlled, the acid removal effect is poor, and thus the quality of fresh chilled meat is poor.

[0005] To achieve the above object, on the one hand, the present invention provides a chilled fresh meat processing system, comprising:

[0006] Storage facilities for storing a number of livestock carcasses in a single batch;

[0007] A temperature module connected to the storage warehouse for cooling the storage warehouse;

[0008] A humidity module, which is arranged inside the storage bin and is used to humidify or dehumidify the interior of the storage bin;

[0009] An air circulation module, which is arranged inside the storage bin and is used to circulate air inside the storage bin;

[0010] A data acquisition module, comprising a data entry unit, an image acquisition unit and an environment acquisition unit respectively arranged inside the storage bin, wherein the data entry unit is used to enter the total weight of a single batch of livestock carcasses, the image acquisition unit is used to collect image information and arrangement spacing of each livestock carcass; the environment acquisition unit is used to obtain carbon dioxide concentration and humidity in the storage bin;

[0011] A control module is respectively connected to the data acquisition module, the temperature module, the humidity module and the air circulation module, and is used to extend the first preset time to a corresponding value when it is determined that the initial acid excretion of the livestock carcasses does not meet the preset standard according to the characteristic change rate of the carbon dioxide concentration, or to make a secondary determination according to the lean meat rate of the batch of livestock carcasses; and is used to determine whether the constant acid excretion of the batch of livestock carcasses meets the preset standard according to the characteristic coefficient of the acid excretion effect.

[0012] Furthermore, the control module determines whether the initial acid excretion of the livestock carcass meets a preset standard according to the characteristic change rate of the carbon dioxide concentration at a first preset time, wherein:

[0013] If the characteristic change rate of the carbon dioxide concentration is less than a first preset concentration change threshold, the control module determines that the initial acid excretion of the livestock carcass does not meet the preset standard, and extends the first preset time to a corresponding value according to the difference between the first preset concentration change threshold and the characteristic change rate of the carbon dioxide concentration;

[0014] If the characteristic change rate of the carbon dioxide concentration is greater than or equal to the first preset concentration change threshold and less than the second preset concentration change threshold, the control module determines that the initial acid excretion of the livestock carcass does not meet the preset standard, and re-determines whether the initial acid excretion of the livestock carcass meets the preset standard based on the lean meat rate of the livestock carcasses in this batch;

[0015] If the characteristic change rate of the carbon dioxide concentration is greater than or equal to the second preset concentration change threshold, the control module determines that the initial acid discharge of the livestock carcass meets the preset standard, and performs constant acid discharge on the livestock carcass that meets the preset standard;

[0016] The first preset time duration is the time duration for the initial storage bin temperature when the livestock carcass enters the storage bin to decrease to the preset acid discharge temperature;

[0017] The characteristic change rate of carbon dioxide concentration is the change rate of carbon dioxide concentration under a first preset time period.

[0018] Furthermore, the control module is provided with several extension methods for extending the first preset time length, and each extension method has a different extension range for the first preset time length.

[0019] Furthermore, the control module is provided with several correction methods for the first preset time length under a first preset condition, and each correction method has a different correction amplitude for the first preset time length; the first preset condition is that the control module completes the adjustment of the extension of the first preset time length and the humidity in the storage reservoir after the adjustment is greater than a preset humidity threshold.

[0020] Furthermore, the control module determines for the second time whether the initial acid excretion of the livestock carcasses meets the preset standard according to the lean meat percentage of the livestock carcasses in the batch, wherein:

[0021] If the lean meat rate is less than the preset lean meat rate, the control module determines for the second time that the initial acid removal of the livestock carcass meets the preset standard, and performs constant acid removal on the livestock carcass that meets the preset standard;

[0022] If the lean meat rate is greater than or equal to the preset lean meat rate, the control module secondarily determines that the initial acid discharge of the livestock carcass does not meet the preset standard and determines that the reason for not meeting the preset standard is the high arrangement density, and increases the arrangement spacing between the livestock carcasses according to the difference between the lean meat rate and the preset lean meat rate;

[0023] The lean meat rate is acquired through the image acquisition unit.

[0024] Furthermore, the increase in the spacing between the livestock carcasses is positively correlated with the lean meat rate difference, and the lean meat rate difference is the difference between the lean meat rate and the preset lean meat rate.

[0025] Furthermore, the control module determines whether the constant acid discharge of the batch of livestock carcasses meets the preset standard according to the acid discharge effect characteristic coefficient at the second preset time, wherein:

[0026] If the acid-discharging effect characteristic coefficient is less than the first preset characteristic coefficient, the control module determines that the constant acid-discharging of the batch of livestock carcasses does not meet the preset standard, and extends the second preset time length to a corresponding value according to the difference between the first preset characteristic coefficient and the acid-discharging effect characteristic coefficient;

[0027] If the acid removal effect characteristic coefficient is greater than or equal to the first preset characteristic coefficient and less than the second preset characteristic coefficient, the control module determines that the constant acid removal of the batch of livestock carcasses does not meet the preset standard, increases the wind speed of the fan of the air circulation module and reduces the humidity of the storage;

[0028] If the acid removal effect characteristic coefficient is greater than or equal to the second preset characteristic coefficient, the control module determines that the constant acid removal of the batch of livestock carcasses meets the preset standard, and divides and packages the livestock carcasses that meet the preset standard to complete the processing of fresh cold meat;

[0029] The second preset time period is the preset time period during which the storage maintains the preset acid-draining temperature until the acid-draining of the livestock carcass is completed.

[0030] Furthermore, the acid-removal effect characteristic coefficient is determined based on the average brightness and average redness of the lean meat area of ​​the livestock carcass.

[0031] Further, the increase in the wind speed of the fan is the same as the decrease in the humidity of the storage tank.

[0032] On the other hand, the present invention also provides a method for processing chilled fresh meat, comprising:

[0033] Storing individual batches of livestock carcasses in storage rooms;

[0034] Refrigerating the storage chamber to obtain a characteristic change rate of carbon dioxide concentration under the first preset time period;

[0035] When it is determined according to the characteristic change rate of the carbon dioxide concentration that the initial acid excretion of the livestock carcass does not meet the preset standard, the first preset time is extended to a corresponding value, or, based on the lean meat rate of the livestock carcasses of the batch, it is determined again whether the initial acid excretion of the livestock carcasses meets the preset standard;

[0036] Perform constant acid removal on the livestock carcasses that meet the preset standards, and obtain the acid removal effect characteristic coefficient under the second preset time length;

[0037] When it is determined according to the acid-discharging effect characteristic coefficient that the acid-discharging of the batch of livestock carcasses does not meet the preset standard, the wind speed of the fan is increased and the humidity of the storage bin is reduced, or the second preset time is extended to a corresponding value;

[0038] Livestock carcasses that meet preset standards are cut, packaged, and distributed for sale.

[0039] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention divides cooling and acid discharge into two stages. In the initial acid discharge stage, the temperature of the storage tank slowly decreases, and the initial acid discharge of the livestock carcass is evaluated by the characteristic change rate of carbon dioxide and the lean meat rate, thereby extending the temperature drop time or increasing the layout density of the carcass to ensure the acid discharge effect of the carcass; in the constant acid discharge stage, the temperature of the storage tank remains unchanged, and the acid discharge effect of the livestock carcass is verified by the acid discharge effect characteristic coefficient, and then the wind speed and humidity are synchronously adjusted or the constant acid discharge time is extended, thereby realizing real-time monitoring and precise control of the cooling and acid discharge process, thereby improving the quality of fresh chilled meat.

[0040] Furthermore, the control module of the present invention determines whether the initial acid discharge of the livestock carcass meets a preset standard according to the characteristic change rate of the carbon dioxide concentration within a first preset time period, thereby improving the acid discharge efficiency.

[0041] Furthermore, the control module of the present invention secondarily determines whether the initial acid discharge of the livestock carcasses meets the preset standard according to the lean meat rate of the batch of livestock carcasses, and considers the influence of the fat ratio on the acid discharge process, thereby optimizing the cooling and acid discharge process.

[0042] Furthermore, the present invention is provided with several extension methods for extending the first preset time length, and each extension method has a different extension range for the first preset time length, thereby achieving precise control of the first preset time length.

[0043] Furthermore, the increase in the arrangement spacing between the livestock carcasses of the present invention is positively correlated with the lean meat rate difference, which is the difference between the lean meat rate and the preset lean meat rate, thereby improving the spacing adjustment accuracy.

[0044] Furthermore, the present invention determines whether the constant acid discharge of the batch of livestock carcasses meets the preset standard based on the acid discharge effect characteristic coefficient, thereby realizing real-time monitoring and control of the acid discharge process.

[0045] Furthermore, the present invention is provided with a characteristic coefficient of the acid-removing effect, which comprehensively considers the brightness and redness of the acid-removing fresh cold meat, thereby realizing a scientific evaluation.

[0046] Furthermore, the present invention is provided with several extension methods for extending the second preset time length, and each extension method has a different extension range for the second preset time length, thereby achieving precise control of the second preset time length. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 This is a schematic diagram of the structure of a chilled fresh meat processing system according to an embodiment of the present invention;

[0048] Figure 2 A flow chart of an embodiment of the present invention for determining whether the initial acid excretion of the livestock carcass meets a preset standard;

[0049] Figure 3 A flow chart of a second determination of whether the initial acid discharge of the livestock carcass meets a preset standard according to an embodiment of the present invention;

[0050] Figure 4 The present invention is a flow chart for determining whether the acid discharge of a batch of livestock carcasses meets a preset standard. DETAILED DESCRIPTION

[0051] 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.

[0052] 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.

[0053] See also Figure 1 , Figure 2 , Figure 3 as well as Figure 4 As shown, they are respectively a structural schematic diagram of a cold fresh meat processing system according to an embodiment of the present invention, a flow chart of determining whether the initial acid excretion of the livestock carcass meets the preset standard according to an embodiment of the present invention, a flow chart of determining whether the initial acid excretion of the livestock carcass meets the preset standard for the second time according to an embodiment of the present invention, and a flow chart of determining whether the acid excretion of the batch of livestock carcasses meets the preset standard according to an embodiment of the present invention.

[0054] A chilled fresh meat processing system according to an embodiment of the present invention comprises: a storage warehouse for storing a plurality of livestock carcasses in a single batch;

[0055] A temperature module connected to the storage warehouse, and used to cool the storage warehouse;

[0056] A humidity module, which is arranged inside the storage bin and is used to humidify or dehumidify the interior of the storage bin;

[0057] An air circulation module, which is arranged inside the storage bin and is used to circulate air inside the storage bin;

[0058] A data acquisition module, comprising a data entry unit, an image acquisition unit and an environment acquisition unit respectively arranged inside the storage bin, wherein the data entry unit is used to enter the total weight of a single batch of livestock carcasses, the image acquisition unit is used to collect image information and arrangement spacing of each livestock carcass; the environment acquisition unit is used to obtain carbon dioxide concentration and humidity in the storage bin;

[0059] The control module is connected to the data acquisition module and is used to determine, based on the characteristic change rate of the carbon dioxide concentration, that the initial acid excretion of the livestock carcasses does not meet the preset standard and to extend the first preset time to a corresponding value, or to make a secondary determination based on the lean meat rate of the batch of livestock carcasses; and to determine, based on the characteristic coefficient of the acid excretion effect, whether the constant acid excretion of the batch of livestock carcasses meets the preset standard.

[0060] In this embodiment, the temperature module includes a refrigerator and an electronic thermometer, and the humidity module includes a humidifier and a dehumidifier. There is no specific limitation, as long as the requirements of each module are met.

[0061] Specifically, there is no limitation on the specific structure of the control module, which itself and each unit therein can be composed of logical components, including field editable components, computers or microprocessors in computers; the data entry unit includes an electronic scale; the environment acquisition unit includes a carbon dioxide concentration detector and a humidity sensor; the image acquisition unit is a CCD camera, a camera or an industrial camera, and there is no specific limitation, as long as it can obtain image information of livestock carcasses in real time.

[0062] Specifically, the control module determines whether the initial acid excretion of the livestock carcass meets a preset standard according to the characteristic change rate of the carbon dioxide concentration at a first preset time, wherein:

[0063] If the characteristic change rate of the carbon dioxide concentration is less than the first preset concentration change threshold of 0.73 ppm / min, the control module determines that the initial acid excretion of the livestock carcass does not meet the preset standard, and extends the first preset time to a corresponding value according to the difference between the first preset concentration change threshold and the characteristic change rate of the carbon dioxide concentration;

[0064] If the characteristic change rate of the carbon dioxide concentration is greater than or equal to the first preset concentration change threshold and less than the second preset concentration change threshold of 0.92 ppm / min, the control module determines that the initial acid excretion of the livestock carcass does not meet the preset standard, and re-determines whether the initial acid excretion of the livestock carcass meets the preset standard based on the lean meat rate of the livestock carcasses in this batch;

[0065] If the characteristic change rate of the carbon dioxide concentration is greater than or equal to the second preset concentration change threshold, the control module determines that the initial acid discharge of the livestock carcass meets the preset standard, and performs constant acid discharge on the livestock carcass that meets the preset standard;

[0066] The first preset time duration of 1 hour is the time duration for the initial storage temperature of the livestock carcass to drop to the preset acid discharge temperature of 4°C when entering the storage;

[0067] The process of determining that the characteristic change rate of carbon dioxide concentration is the change rate of carbon dioxide concentration under the first preset time period includes:

[0068] The concentration of carbon dioxide in the storage when the storage begins to cool down is recorded as the initial carbon dioxide concentration;

[0069] The concentration of carbon dioxide in the storage when the storage temperature is reduced to the preset acid discharge temperature is recorded as the final carbon dioxide concentration;

[0070] The change in carbon dioxide concentration under the first preset time period is the difference between the initial carbon dioxide concentration and the final carbon dioxide concentration;

[0071] The characteristic change rate of carbon dioxide concentration is the ratio of the change in carbon dioxide concentration to the first preset time length;

[0072] The initial carbon dioxide concentration and the final carbon dioxide concentration are both obtained by a carbon dioxide concentration detector.

[0073] Specifically, the control module is provided with several extension methods for extending the first preset duration, wherein:

[0074] If the concentration difference is less than the first preset concentration difference of 0.11 ppm / min, the control module uses the first preset time adjustment coefficient of 1.06 to extend the first preset time;

[0075] If the concentration difference is greater than or equal to the first preset concentration difference and less than the second preset concentration difference of 0.17 ppm / min, the control module uses the second preset time adjustment coefficient of 1.09 to extend the first preset time;

[0076] If the concentration difference is greater than or equal to the second preset concentration difference, the control module uses a third preset time adjustment coefficient of 1.13 to extend the first preset time; the concentration difference is the difference between the first preset concentration change threshold and the characteristic change rate of the carbon dioxide concentration.

[0077] Specifically, the control module is provided with several correction methods for the first preset time length under the first preset condition, wherein:

[0078] If the humidity difference is less than the first preset humidity difference of 5.8%RH, the control module uses a first correction coefficient of 0.98 to correct the first preset time length;

[0079] If the humidity difference is greater than or equal to the first preset humidity difference and less than the second preset humidity difference of 7.3%RH, the control module uses a second correction coefficient of 0.96 to correct the first preset time length;

[0080] If the humidity difference is greater than or equal to the second preset humidity difference, the control module uses a third correction coefficient of 0.94 to correct the first preset time length;

[0081] The first preset condition is that the control module completes the adjustment of the first preset time extension and the humidity in the storage bin after the adjustment is greater than the preset humidity threshold 85% RH; the humidity difference is the difference between the humidity in the storage bin and the preset humidity threshold.

[0082] Specifically, the control module determines whether the initial acid discharge of the livestock carcasses meets the preset standard based on the lean meat rate of the livestock carcasses in the batch, wherein:

[0083] If the lean meat rate is less than the preset lean meat rate of 57.5%, the control module secondarily determines that the initial acid removal of the livestock carcass meets the preset standard, and performs constant acid removal on the livestock carcass that meets the preset standard;

[0084] If the lean meat rate is greater than or equal to the preset lean meat rate, the control module secondarily determines that the initial acid discharge of the livestock carcass does not meet the preset standard and determines that the reason for not meeting the preset standard is the high arrangement density, and increases the arrangement spacing between the livestock carcasses according to the difference between the lean meat rate and the preset lean meat rate;

[0085] The lean meat rate is determined by imaging the pig carcass using an ultrasonic scanner to determine the distribution of muscle and fat, and then calculating the ratio of lean meat volume to total volume using image analysis software, and the ratio is recorded as the lean meat rate; the lean meat rate can also be obtained by obtaining the corresponding lean meat rate through image information of the livestock carcass when entering the storage warehouse, for example, by comparing the image information of the livestock carcass with images of livestock carcasses with lean meat rate information that have been entered into the database to determine the lean meat rate, without specific limitation.

[0086] Specifically, the increase in the spacing between the livestock carcasses is positively correlated with the difference in lean meat rate, wherein the positive correlation is, for example, a linear positive correlation or a nonlinear positive correlation, and the linear slope of the linear positive correlation is not specifically limited. It can be understood that the greater the difference in lean meat rate, the greater the increase in the spacing between the livestock carcasses; the lean meat rate difference is the difference between the lean meat rate and the preset lean meat rate.

[0087] Specifically, the control module determines whether the constant acid discharge of the batch of livestock carcasses meets the preset standard according to the acid discharge effect characteristic coefficient at the second preset time, wherein:

[0088] If the acid-discharging effect characteristic coefficient is less than the first preset characteristic coefficient 1.14, the control module determines that the constant acid-discharging of the batch of livestock carcasses does not meet the preset standard, and extends the second preset time length to a corresponding value according to the difference between the first preset characteristic coefficient and the acid-discharging effect characteristic coefficient;

[0089] If the acid-discharging effect characteristic coefficient is greater than or equal to the first preset characteristic coefficient and less than the second preset characteristic coefficient 1.49, the control module determines that the constant acid-discharging of the batch of livestock carcasses does not meet the preset standard, and synchronously increases the wind speed of the fan of the air circulation module and reduces the humidity of the storage according to the difference between the second preset characteristic coefficient and the acid-discharging effect characteristic coefficient;

[0090] If the acid removal effect characteristic coefficient is greater than or equal to the second preset characteristic coefficient, the control module determines that the constant acid removal of the batch of livestock carcasses meets the preset standard, and divides and packages the livestock carcasses that meet the preset standard to complete the processing of fresh cold meat;

[0091] The second preset time duration 40 hours is the preset time duration for the storage to maintain the preset acid drainage temperature until the livestock carcass completes acid drainage.

[0092] Specifically, the process of determining the acid removal effect characteristic coefficient based on the average brightness and average redness of the lean meat area of ​​the livestock carcass includes:

[0093] Using a colorimeter to obtain the brightness and redness of the lean meat area of ​​the livestock carcass of the batch;

[0094] Calculate the average brightness and average redness;

[0095] The square root of the ratio between the average brightness and the preset brightness 72 is multiplied by the first evaluation coefficient to obtain a brightness evaluation value, wherein the first evaluation coefficient is 0.46;

[0096] The square root of the ratio between the average redness and the preset redness 108 is multiplied by the second evaluation coefficient to obtain the redness evaluation value, wherein the second evaluation coefficient is 0.66

[0097] The sum of the brightness evaluation value and the redness evaluation value is recorded as the acid removal effect characteristic coefficient.

[0098] Referring to the prior art, the brightness value range is 0 to 100, and the greater the brightness, the brighter the surface of the sample being measured;

[0099] The redness value ranges from 0 to 255 in RGB color, and the larger the redness value, the redder it is.

[0100] Specifically, the increase in the wind speed of the fan is the same as the decrease in the humidity of the storage. It can be understood that increasing the wind speed is used to accelerate the air circulation in the storage, thereby taking away the heat and moisture on the surface and around the livestock carcass, which is beneficial to the discharge of lactic acid inside the meat. At the same time, reducing humidity can reduce the moisture content in the air, reduce the environment for microbial growth, and further promote the acid discharge process; while increasing the wind speed and reducing humidity, the relative balance of the environment in the storage can be maintained. If only the wind speed is increased without reducing humidity, the humidity in the storage will be too high, increasing the risk of microbial growth; and if only the humidity is reduced without increasing the wind speed, the acid discharge process will be slowed down.

[0101] It can be understood that the increase in the wind speed of the fan is synchronized and proportional to the decrease in the humidity of the storage reservoir; this proportional relationship can be linear or nonlinear; during the adjustment process, the changes in wind speed and humidity occur simultaneously, rather than one changing first and the other changing later; the "same amplitude" mentioned here means that the proportion or order of magnitude of their relative changes is the same.

[0102] A method for processing fresh cold meat according to an embodiment of the present invention comprises:

[0103] Step S1, storing a single batch of livestock carcasses in a storage room;

[0104] Step S2, cooling the storage chamber to obtain a characteristic change rate of carbon dioxide concentration under the first preset time period;

[0105] Step S3, when it is determined according to the characteristic change rate of the carbon dioxide concentration that the initial acid excretion of the livestock carcass does not meet the preset standard, the first preset time is extended to a corresponding value, or, based on the lean meat rate of the livestock carcasses in this batch, it is determined again whether the initial acid excretion of the livestock carcasses meets the preset standard;

[0106] Step S4, performing constant acid removal on the livestock carcasses that meet the preset standard, and obtaining the acid removal effect characteristic coefficient under the second preset time length;

[0107] Step S5, when it is determined according to the acid-discharging effect characteristic coefficient that the acid-discharging of the batch of livestock carcasses does not meet the preset standard, the wind speed of the fan is increased and the humidity of the storage is reduced, or the second preset time is extended to a corresponding value;

[0108] Step S6, dividing, packaging and selling the livestock carcasses that meet the preset standards.

[0109] 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.

[0110] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A chilled meat processing system, characterized in that: include: Storage facilities for storing a number of livestock carcasses in a single batch; A temperature module connected to the storage warehouse for cooling the storage warehouse; A humidity module, which is arranged inside the storage bin and is used to humidify or dehumidify the interior of the storage bin; An air circulation module, which is arranged inside the storage bin and is used to circulate air inside the storage bin; A data acquisition module, comprising a data entry unit, an image acquisition unit and an environment acquisition unit respectively arranged inside the storage bin, wherein the data entry unit is used to enter the total weight of a single batch of livestock carcasses, the image acquisition unit is used to collect image information and arrangement spacing of each livestock carcass; the environment acquisition unit is used to obtain carbon dioxide concentration and humidity in the storage bin; A control module is respectively connected to the data acquisition module, the temperature module, the humidity module and the air circulation module, and is used to extend the first preset time to a corresponding value when it is determined that the initial acid excretion of the livestock carcasses does not meet the preset standard according to the characteristic change rate of the carbon dioxide concentration, or to make a secondary determination according to the lean meat rate of the batch of livestock carcasses; and is used to determine whether the constant acid excretion of the batch of livestock carcasses meets the preset standard according to the characteristic coefficient of the acid excretion effect.

2. The cold fresh meat processing system according to claim 1, characterized in that: The control module determines whether the initial acid excretion of the livestock carcass meets a preset standard according to the characteristic change rate of the carbon dioxide concentration at a first preset time, wherein: If the characteristic change rate of the carbon dioxide concentration is less than a first preset concentration change threshold, the control module determines that the initial acid excretion of the livestock carcass does not meet the preset standard, and extends the first preset time to a corresponding value according to the difference between the first preset concentration change threshold and the characteristic change rate of the carbon dioxide concentration; If the characteristic change rate of the carbon dioxide concentration is greater than or equal to the first preset concentration change threshold and less than the second preset concentration change threshold, the control module determines that the initial acid excretion of the livestock carcass does not meet the preset standard, and re-determines whether the initial acid excretion of the livestock carcass meets the preset standard based on the lean meat rate of the livestock carcasses in this batch; If the characteristic change rate of the carbon dioxide concentration is greater than or equal to the second preset concentration change threshold, the control module determines that the initial acid discharge of the livestock carcass meets the preset standard, and performs constant acid discharge on the livestock carcass that meets the preset standard; The first preset time duration is the time duration for the initial storage bin temperature when the livestock carcass enters the storage bin to decrease to the preset acid discharge temperature; The characteristic change rate of carbon dioxide concentration is the change rate of carbon dioxide concentration under a first preset time period.

3. The cold fresh meat processing system according to claim 2, characterized in that: The control module is provided with several extension methods for extending the first preset time length, and each extension method has a different extension range for the first preset time length.

4. The cold fresh meat processing system according to claim 3, characterized in that: The control module is provided with several correction methods for the first preset time length under the first preset condition, and each correction method has a different correction amplitude for the first preset time length; the first preset condition is that the control module completes the adjustment for extending the first preset time length and the humidity in the storage reservoir after the adjustment is greater than the preset humidity threshold.

5. The cold fresh meat processing system according to claim 4, characterized in that: The control module determines for the second time whether the initial acid discharge of the livestock carcasses meets the preset standard according to the lean meat rate of the livestock carcasses in the batch, wherein: If the lean meat rate is less than the preset lean meat rate, the control module determines for the second time that the initial acid removal of the livestock carcass meets the preset standard, and performs constant acid removal on the livestock carcass that meets the preset standard; If the lean meat rate is greater than or equal to the preset lean meat rate, the control module secondarily determines that the initial acid discharge of the livestock carcass does not meet the preset standard and determines that the reason for not meeting the preset standard is the high arrangement density, and increases the arrangement spacing between the livestock carcasses according to the difference between the lean meat rate and the preset lean meat rate; The lean meat rate is acquired through the image acquisition unit.

6. The cold fresh meat processing system according to claim 5, characterized in that: The increase in the spacing between the livestock carcasses is positively correlated with the difference in lean meat percentage, which is the difference between the lean meat percentage and the preset lean meat percentage.

7. The cold fresh meat processing system according to claim 6, characterized in that: The control module determines whether the constant acid discharge of the batch of livestock carcasses meets the preset standard according to the acid discharge effect characteristic coefficient at the second preset time, wherein: If the acid-discharging effect characteristic coefficient is less than the first preset characteristic coefficient, the control module determines that the constant acid-discharging of the batch of livestock carcasses does not meet the preset standard, and extends the second preset time length to a corresponding value according to the difference between the first preset characteristic coefficient and the acid-discharging effect characteristic coefficient; If the acid removal effect characteristic coefficient is greater than or equal to the first preset characteristic coefficient and less than the second preset characteristic coefficient, the control module determines that the constant acid removal of the batch of livestock carcasses does not meet the preset standard, increases the wind speed of the fan of the air circulation module and reduces the humidity of the storage; If the acid removal effect characteristic coefficient is greater than or equal to the second preset characteristic coefficient, the control module determines that the constant acid removal of the batch of livestock carcasses meets the preset standard, and divides and packages the livestock carcasses that meet the preset standard to complete the processing of fresh cold meat; The second preset time period is the preset time period during which the storage maintains the preset acid-draining temperature until the acid-draining of the livestock carcass is completed.

8. The cold fresh meat processing system according to claim 7, characterized in that: The acid removal effect characteristic coefficient is determined based on the average brightness and average redness of the lean meat area of ​​the livestock carcass.

9. The chilled meat processing system according to claim 8, characterized in that: The magnitude of the increase in the wind speed of the fan is the same as the magnitude of the decrease in the humidity of the storage reservoir.

10. A method for processing fresh cold meat applied to the system according to any one of claims 1 to 9, characterized in that: include: Storing individual batches of livestock carcasses in storage rooms; Refrigerating the storage chamber to obtain a characteristic change rate of carbon dioxide concentration under the first preset time period; When it is determined according to the characteristic change rate of the carbon dioxide concentration that the initial acid excretion of the livestock carcass does not meet the preset standard, the first preset time is extended to a corresponding value, or, based on the lean meat rate of the livestock carcasses of the batch, it is determined again whether the initial acid excretion of the livestock carcasses meets the preset standard; Perform constant acid removal on the livestock carcasses that meet the preset standards, and obtain the acid removal effect characteristic coefficient under the second preset time length; When it is determined according to the acid-discharging effect characteristic coefficient that the acid-discharging of the batch of livestock carcasses does not meet the preset standard, the wind speed of the fan is increased and the humidity of the storage bin is reduced, or the second preset time is extended to a corresponding value; Livestock carcasses that meet preset standards are cut, packaged, and distributed for sale.

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