An easy-to-occur sea fish processing control method and system based on oxygen injection and water therapy

Abstract

The application discloses an easy-to-harvest sea cucumber processing control method and system based on oxygen injection and water therapy, relates to the technical field of food processing control, and realizes adaptive and accurate control of the sea cucumber processing process through multi-sensor feedback. First, the processing process parameter vector X of the sea cucumber species is called to perform standardization setting, and the maximum oxygen transmission amount O is calculated MAX Pretreatment is performed to gently wake up the tissue. Then, the real-time water turbidity T rt is monitored until a cleaning threshold T MIN is reached to complete deep cleaning. In the secondary water therapy, the real-time oxygen transmission amount O rt is dynamically adjusted to maintain the target dissolved oxygen concentration DO2 of the secondary water therapy, and the processing environment is stabilized. The real-time conductivity C rt of the secondary water therapy solution is monitored, and when the real-time conductivity change value Delta C of the secondary water therapy solution reaches the requirement, the conditioning is ended, and intelligent judgment of the absorption process is realized. Finally, the processing is completed after a preset standing time t P , and the quality uniformity is ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of food processing control, in particular to an easy-to-harvest sea cucumber processing control method and system based on oxygen injection and water therapy. BACKGROUND

[0002] The present application relates to the technical field of food processing, in particular to a process control technology for deep processing of aquatic products. In the processing of aquatic products, the processing of echinoderms is of great concern due to their unique tissue structure. Among them, sea cucumber is a high-value marine delicacy, and the quality of its processing process directly determines the commercial value and consumer experience of the final product. One of the core links of sea cucumber processing is water treatment, which changes its physical and biochemical properties through sufficient interaction with aqueous solution to achieve specific quality requirements. For example, in large food processing centers, freshly caught sea cucumbers are standardized pretreated to prepare high-quality instant, frozen or dried products; or in the large-scale production of dried sea cucumbers, specific processing is used to make the subsequent rehydration process more convenient, i.e. to achieve easy-to-harvest properties. This series of processes all rely on an efficient and controllable water therapy technology, and on this basis, the environmental parameters in the water therapy process are accurately controlled.

[0003] In the prior art, for the hydration and cleaning treatment of sea cucumbers, relatively traditional long-time soaking and mechanical vibration methods are often used. The primary disadvantage of such methods is the inaccuracy of process control, which highly depends on the personal experience of the operator, resulting in significant differences in rehydration degree, hardness and other taste indicators between different batches or even the same batch of products, and poor product quality uniformity. Secondly, long-term static or semi-static soaking, especially in a normal temperature environment, provides a breeding ground for the growth and reproduction of microorganisms. The dissolved oxygen in the processing water will be rapidly depleted due to microbial activity, forming an anaerobic environment, which can easily lead to the proliferation of anaerobic spoilage bacteria, not only shortening the shelf life of the product, but also possibly producing hydrogen sulfide and other odor substances. In addition, simple soaking is inefficient in removing residual internal organs or mucus in the body cavity of sea cucumbers, affecting the cleanliness and flavor of the final product.

[0004] The problems are caused by the traditional processing mode which is open and relies on manual experience. For example, in long-term static or semi-static soaking, the low dissolved oxygen content in the water environment provides a breeding ground for anaerobic bacteria and other spoilage bacteria, which not only may cause product deterioration, but also may produce hydrogen sulfide and other odor substances in the anaerobic environment. At the same time, due to the stress reaction of the slaughtered sea cucumber, the muscle tissue contracts and hardens. Without effective physical intervention, it is difficult for simple soaking to make the sea cucumber uniform and fast water absorption and softening, which finally leads to the phenomenon of local dry and hard or excessive expansion of the finished product. Moreover, the lack of active and controlled water flow also makes it difficult to effectively discharge the impurities such as viscera mucus remaining in the body cavity of the sea cucumber, resulting in fishy smell and reducing the hygiene standard. A series of uncontrolled factors work together, which finally leads to the finished product unable to achieve the ideal industrialized standard in taste, color, safety and processing efficiency. SUMMARY

[0005] In view of the deficiencies of the prior art, the present application provides an easy-to-process sea cucumber processing control method and system based on oxygen injection and water therapy, which solves the problems mentioned in the background art.

[0006] To achieve the above purpose, the present application is realized by the following technical scheme: an easy-to-process sea cucumber processing control method based on oxygen injection and water therapy, comprising the following steps:

[0007] S1, the staff inputs the type and quality W of the sea cucumber to be processed into the control console S , the control console accesses and calls the corresponding processing process parameter vector X in the preset rule base, and deploys multiple sensors in the middle of the water therapy pool;

[0008] S2, according to the quality W of the sea cucumber S and the processing process parameter vector X, the first water therapy solution is prepared, and the maximum oxygen injection amount O MAX is calculated according to the maximum dissolved oxygen concentration DO1 of the first water therapy in the processing process parameter vector X, and the sea cucumber is pretreated by the first water therapy;

[0009] S3, after the sea cucumber completes the first water therapy pretreatment, it is sent to the second water pool for deep cleaning, and the real-time water turbidity T rt is monitored by the turbidity sensor at the drain, and when the turbidity T MIN reaches the preset cleaning threshold, it is determined that the deep cleaning work is completed;

[0010] S4, according to the quality W of the sea cucumber S and the processing process parameter vector X, the second water therapy solution is prepared, the real-time oxygen injection amount O rt is calculated according to the target dissolved oxygen concentration DO2 of the second water therapy in the processing process parameter vector X, and the real-time oxygen injection amount O rt is dynamically adjusted;

[0011] S5, monitoring the real-time conductivity C of the secondary spa solution by the deployed conductivity meter rt When the real-time conductivity change value AC of the secondary spa solution reaches the preset balance interval C th When required, determine that the secondary spa is complete;

[0012] S6, stop oxygen injection after the completion of the secondary spa, and let the sea cucumbers stand in the secondary spa solution for a preset standing time t P , and discharge the secondary spa solution to complete the sea cucumber spa processing.

[0013] Preferably, S1 includes S11;

[0014] S11, the staff inputs the type of sea cucumbers to be processed and the mass W of the sea cucumbers into the control console S , the control console accesses and calls the corresponding processing process parameter vector X in the preset rule base;

[0015] The processing process parameter vector X in the rule base is set by relevant professionals, including the target processing temperature θ, the target dissolution concentration DO1 of the first spa, the target dissolution concentration DO2 of the secondary spa, the target salinity C1 of the first spa, the target concentration set C2 of the secondary spa molecules, and the mass ratio M of the sea cucumbers and the liquid solution, the secondary spa molecules including salt, trehalose, glycine and proline;

[0016] An online dissolved oxygen sensor is deployed in the first pool of the first spa and the secondary spa pool to obtain the oxygen concentration in the pool, an ultrasonic liquid level sensor is deployed above the first pool of the first spa and the secondary spa pool to obtain the water level L of the spa solution, and a turbidity sensor is deployed at the drain of the second pool of the first spa to obtain the real-time monitoring water turbidity T rt A conductivity meter is deployed in the secondary spa pool to obtain the real-time conductivity C of the secondary spa solution rt .

[0017] Preferably, S2 includes S21;

[0018] S21, according to the mass W of the sea cucumbers S , the target salinity C1 of the first spa in the processing process parameter vector X, and the mass ratio M of the sea cucumbers and the liquid solution, the first spa solution is prepared and the solution temperature is stably controlled at the target processing temperature θ, and the sea cucumbers to be processed are put into the first pool of the first spa for the first spa pretreatment, and the first stage of the first spa pretreatment includes the following:

[0019] An oxygen injection device is used to inject oxygen into the first pool of the first spa, so that the oxygen flow O is smoothly increased in a linear increasing manner from 100 L / min to the maximum oxygen flow O MAX , wherein the maximum oxygen flow O MAXThe maximum dissolved oxygen concentration DO1 of the first spa treatment is calculated according to the process parameter vector X and cannot exceed 300 L / min, if the calculation result exceeds 300 L / min, then take 300 L / min, and the calculation is at the specified time t R The specified volume V of the spa solution is lifted from the initial dissolved oxygen concentration DO S1 The total oxygen mass of the first spa treatment is lifted to the maximum dissolved oxygen concentration DO1, combined with the oxygen supply conversion rate DOT of the oxygen injection equipment, and the maximum oxygen injection amount O is reversely calculated MAX ;

[0020] Among them, the maximum oxygen injection amount O MAX The calculation expression is as follows:

[0021] ;

[0022] In the formula, t R1 represents the specified time of the first stage of the first spa treatment, and the first stage of the first spa treatment is 15 minutes, DO S1 represents the initial dissolved oxygen concentration of the first spa treatment, which is obtained by deploying an online dissolved oxygen sensor in the first pool of the first spa treatment before the oxygen injection equipment works, V represents the volume of the prepared first spa solution, which is obtained by multiplying the water level L of the spa solution obtained by deploying an ultrasonic liquid level sensor in the first pool of the first spa treatment and the preset pool bottom area S, DOT represents the oxygen supply conversion rate of the oxygen injection equipment, which is obtained by combining the online dissolved oxygen sensor and measuring the oxygen concentration change in the liquid within a fixed time with a fixed oxygen injection amount, and the unit is expressed as milligrams per liter.

[0023] Preferably, S2 includes S22;

[0024] S22, the second stage of the first spa treatment pretreatment is as follows:

[0025] When the oxygen injection amount O of the oxygen injection equipment reaches the maximum oxygen injection amount O MAX , it is converted from continuous oxygen injection to rhythmic pulse oxygen injection with the maximum oxygen injection amount O MAX According to the oxygen injection for 10 seconds, then completely stop the oxygen injection and stand for 20 seconds, and the cycle of oxygen injection-resting is repeated for 15 minutes to complete the first spa treatment pretreatment.

[0026] Preferably, S3 includes S31;

[0027] S31, after the sea cucumber completes the first spa treatment pretreatment, it is sent to the second pool of the first spa treatment for deep cleaning, and the deep cleaning content is as follows:

[0028] The second pool of the first hydrotherapy is impacted according to the rhythmic pulse oxygen injection mode of the second stage of the first hydrotherapy pretreatment, and a circulating filtration pool is connected to the drain, and the filtered first hydrotherapy solution is transported back to the second pool of the first hydrotherapy, and the real-time water turbidity T is monitored by the turbidity sensor arranged at the drain rt , the monitoring frequency is once per minute, and when the real-time water turbidity T rt is less than three times the preset cleaning threshold T MIN , it is determined that the cleaning work is completed.

[0029] Preferably, S4 includes S41;

[0030] S41, after the cleaning work of the sea cucumber is completed, according to the quality W S of the sea cucumber, the secondary hydrotherapy molecular target concentration ratio C2 in the processing parameter vector X, and the mass ratio M of the sea cucumber and the liquid solution, a secondary hydrotherapy solution with the same volume as the first hydrotherapy solution is prepared, and the solution temperature is stably controlled at the target processing temperature θ, the real-time dissolved oxygen concentration DO rt of the secondary hydrotherapy solution is obtained by the online dissolved oxygen sensor arranged in the secondary hydrotherapy pool, the monitoring frequency is once per minute, the real-time oxygenation amount O MAX is calculated according to the target dissolved oxygen concentration DO2 of the secondary hydrotherapy in the processing parameter vector X, combined with the maximum oxygenation amount O rt , and the real-time oxygenation amount O rt is dynamically adjusted;

[0031] If the current monitoring result is the real-time dissolved oxygen concentration DO rt of the secondary hydrotherapy solution DO2, send a stop command to the oxygen injection equipment;

[0032] If the current monitoring result is the real-time dissolved oxygen concentration DO rt of the secondary hydrotherapy solution DO2, calculate the real-time oxygenation amount O rt and send a dynamic adjustment instruction according to the calculation result, and the real-time oxygenation amount O rt The calculation expression is as follows:

[0033] ;

[0034] In the formula, t R2 represents the monitoring interval of the online dissolved oxygen sensor, and the specific value is 1 minute.

[0035] Preferably, S5 includes S51;

[0036] S51, the real-time conductivity C rt, the monitoring frequency is once per minute, and the real-time conductivity C of the secondary spa solution is calculated immediately after each monitoring is completed rt , the difference between the real-time conductivity C of the secondary spa solution and the conductivity C of the previous moment of the secondary spa solution, to obtain a real-time conductivity change value ΔC of the secondary spa solution. rt-1

[0037] Preferably, S5 comprises S52;

[0038] S52, comparing the real-time conductivity change value ΔC of the secondary spa solution with a preset balance interval C th , wherein the preset balance interval C th comprises a balance interval left value C1 and a balance interval right value C2;

[0039] If the real-time conductivity change value ΔC of the secondary spa solution does not reach ≥ the balance interval left value C1 and ≤ the balance interval right value C2 for three consecutive times, it is determined that the sea cucumber does not absorb the spa solution sufficiently, and the secondary spa treatment is not completed, and the secondary spa treatment is continued to be performed.

[0040] If the real-time conductivity change value ΔC of the secondary spa solution reaches ≥ the balance interval left value C1 and ≤ the balance interval right value C2 for three consecutive times, it is determined that the sea cucumber absorbs the spa solution sufficiently, and the secondary spa treatment is completed, and a stop oxygen injection instruction is sent to the oxygen injection equipment.

[0041] Preferably, S6 comprises S61;

[0042] S61, after the secondary spa treatment is completed, a stop oxygen injection instruction is sent to the oxygen injection equipment, so that the sea cucumber is placed in the secondary spa solution until a preset standing time t P is reached, and the secondary spa solution is discharged to complete the sea cucumber spa treatment.

[0043] An easy-to-happen sea cucumber processing control system based on oxygen injection and spa treatment comprises a process parameter acquisition module, a cleaning pretreatment module, a deep cleaning module, a constant dissolved oxygen control module, a time length dynamic decision module, and a state stabilization module.

[0044] The process parameter acquisition module inputs the sea cucumber species to be processed and the sea cucumber mass W S by a worker on a console, the console accesses and calls a corresponding processing process parameter vector X in a preset rule base, and multiple sensors are deployed in the middle of a spa pool.

[0045] The cleaning pretreatment module prepares a first spa solution according to the sea cucumber mass W S and the processing process parameter vector X, and calculates a maximum oxygen injection amount O MAX according to a maximum dissolved oxygen concentration DO1 of the first spa treatment in the processing process parameter vector X, to perform first spa treatment pretreatment on the sea cucumber.

[0046] ​After undergoing initial pre-treatment with sea cucumbers, the deep cleaning module transfers them to the second pool of the initial spa for deep cleaning. The real-time turbidity (T) of the water is monitored by a turbidity sensor at the drain outlet. rt Reaching the preset cleaning threshold T MIN When required, the deep cleaning work is deemed complete;

[0047] The constant dissolved oxygen control module controls the dissolved oxygen based on the sea cucumber mass W. S The secondary hydrotherapy solution was prepared based on the processing parameter vector X, and the real-time oxygen flux (O2) was calculated based on the target dissolved oxygen concentration (DO2) in the secondary hydrotherapy solution from the processing parameter vector X. rt Dynamically adjust the real-time oxygen flow rate (O2). rt ;

[0048] The duration dynamic decision module monitors the real-time conductivity C of the secondary hydrotherapy solution using a deployed conductivity meter. rt When the real-time conductivity change value ΔC of the secondary hydrotherapy solution reaches the preset equilibrium range C th Upon request, the second hydrotherapy session is deemed complete;

[0049] After the stabilization module completes the secondary hydrotherapy, oxygenation is stopped, and the sea cucumbers are left to stand in the secondary hydrotherapy solution for the preset set time t. P The secondary hydrotherapy solution is drained to complete the sea cucumber hydrotherapy processing;

[0050] The system includes an input terminal and an output terminal connected by electrical signals;

[0051] The input terminals include the following:

[0052] The human-machine interface allows staff to input initial commands such as the type and quality (WS) of the sea cucumbers to be processed, corresponding to some functions of the process parameter acquisition module. Online dissolved oxygen sensors are deployed in the first and second water tanks of the initial hydrotherapy session to provide real-time dissolved oxygen concentration signals to the PLC. Ultrasonic level sensors are deployed above all tanks to provide the PLC with the hydrotherapy solution level (L) signal. A turbidity sensor is deployed at the drain outlet of the second water tank of the initial hydrotherapy session to provide the PLC with real-time water turbidity (T). rt The conductivity meter is deployed in the secondary hydrotherapy pool to provide the PLC with the real-time conductivity C of the secondary hydrotherapy solution. rt Signal;

[0053] The output terminals include the following:

[0054] The solenoid valves and flow regulators of the oxygen injection equipment are used to precisely control the start, stop, and amount of oxygen flow according to the instructions of the PLC. The water pump is used for solution preparation, circulation, and discharge. The temperature control unit is used to stabilize the solution temperature at the target processing temperature θ.

[0055] The application provides an easy-to-happen sea cucumber processing control method and system based on oxygen injection and water therapy, which has the following beneficial effects:

[0056] (1) By constructing a self-adaptive control process integrating parameterized presetting and multi-sensor closed-loop feedback, the core technical problems of traditional sea cucumber processing, such as dependence on manual experience, extensive process control, uneven product quality and low processing efficiency, are solved. Instead of executing a fixed "time-temperature" process, the present scheme sets scientific initial parameters for the processing process by calling preset rule libraries of different sea cucumber species. More importantly, it introduces real-time feedback control in the key process stage, accurately judges the cleaning degree by using a turbidity sensor, and innovatively determines the absorption endpoint of nutrients by monitoring the dynamic change of solution conductivity. This adaptive control strategy responding to the real-time state of the material significantly improves the standardization level and automation degree of the processing process, thereby achieving breakthrough effects in improving the quality uniformity, processing efficiency and final easy-to-happen performance of sea cucumber products.

[0057] (2) By calling the preset processing process parameter vector X according to the sea cucumber species in the initial stage, it is ensured that all subsequent operations are based on the most suitable material characteristics, realizing the fine processing of teaching students according to their aptitude. On this basis, the first water therapy pretreatment adopts a mild linear oxygenation combined with a rhythmical pulse, which can scientifically calculate and control the maximum oxygenation amount O MAX , effectively avoiding the initial stress damage to the sea cucumber tissue, realizing the full awakening of the tissue and the efficient loosening of the surface impurities. Then, the deep cleaning stage discards the traditional timing mode and innovatively introduces a turbidity feedback mechanism. The system monitors the cleanliness of the circulating water in real time until the real-time water turbidity T rt continuously and repeatedly falls below the preset cleaning threshold T MIN , and then determines that the purification is completed. This result-oriented intelligent control ensures that each batch of products can reach a very high cleaning standard, solves the problems of poor taste and bad flavor caused by residual impurities, and maximizes the processing efficiency.

[0058] (3) After realizing complete purification, the product quality is further guaranteed and improved through fine regulation of the secondary water therapy environment. The system adopts a closed-loop feedback mode to dynamically adjust the real-time oxygen injection amount O rt to maintain a constant secondary water therapy target dissolved oxygen concentration DO2 in the solution, creating an optimal biochemical environment for the nutrient absorption and quality stability of sea cucumber, effectively inhibiting the growth of microorganisms and oxidative deterioration. More importantly, by monitoring the real-time conductivity change value △C of the secondary water therapy solution, the end point of the conditioning process is intelligently determined. When the absorption rate of sea cucumber to amino acid ions significantly decreases, the real-time conductivity change value △C of the secondary water therapy solution continuously and stably stays in a preset balance interval Cth The innovation method makes the conditioning time completely determined by the absorption state of the sea cucumber itself, ensures that the nutrient components are fully and moderately absorbed, and thus obtains the best taste and flavor. Finally, through a standing link, the absorbed substances are evenly distributed in the tissue, and the water penetration is promoted by the water flow brought by the oxygen injection. After this link, the dried sea cucumber has formed channels and water-locking structures that are beneficial to the rapid penetration of water. When the consumer rehydrates, the water can penetrate more quickly and evenly, thereby shortening the rehydration time and making the rehydration more uniform, so that the product finally reaches a stable state of high consistency in internal and external quality, providing the market with high-quality easy-to-rehydrate sea cucumber products. BRIEF DESCRIPTION OF DRAWINGS

[0059] Figure 1 It is a step schematic diagram of the easy-to-rehydrate sea cucumber processing control method based on oxygen injection and water therapy according to the present application;

[0060] Figure 2 It is a block diagram schematic diagram of the easy-to-rehydrate sea cucumber processing control system based on oxygen injection and water therapy according to the present application;

[0061] Figure 3 It is an electrical conductivity data distribution diagram for the second water therapy end point determination stage. DETAILED DESCRIPTION

[0062] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0063] Embodiment 1

[0064] The present application provides an easy-to-rehydrate sea cucumber processing control method based on oxygen injection and water therapy, please refer to Figure 1 , which comprises the following steps:

[0065] S1, the staff inputs the sea cucumber species and the sea cucumber quality W in the control console S , the control console accesses and calls the corresponding processing technology parameter vector X in the preset rule base, and deploys multiple sensors in the middle of the water therapy pool;

[0066] S2, according to the sea cucumber quality W S and the processing technology parameter vector X, the first water therapy solution is prepared, and the maximum oxygen injection amount O MAX is calculated according to the maximum dissolved oxygen concentration DO1 of the first water therapy in the processing technology parameter vector X, and the sea cucumber is subjected to the first water therapy pretreatment;

[0067] S3. After completing the initial hydrotherapy pretreatment, the sea cucumbers are transferred to the second hydrotherapy pool for deep cleaning, with the real-time water turbidity T monitored by a turbidity sensor at the drain outlet. rt Reaching the preset cleaning threshold T MIN When required, the deep cleaning work is deemed complete;

[0068] S4, based on sea cucumber quality W S The secondary hydrotherapy solution was prepared based on the processing parameter vector X, and the real-time oxygen flux (O2) was calculated based on the target dissolved oxygen concentration (DO2) in the secondary hydrotherapy solution from the processing parameter vector X. rt Dynamically adjust the real-time oxygen flow rate (O2). rt ;

[0069] S5. Monitor the real-time conductivity C of the secondary hydrotherapy solution using a deployed conductivity meter. rt When the real-time conductivity change value ΔC of the secondary hydrotherapy solution reaches the preset equilibrium range C th Upon request, the second hydrotherapy session is deemed complete;

[0070] S6. After the second hydrotherapy is completed, oxygenation is stopped, and the sea cucumbers are left to stand in the second hydrotherapy solution for the preset standing time t. P The secondary hydrotherapy solution is then drained to complete the sea cucumber hydrotherapy processing.

[0071] In this embodiment, firstly, by retrieving the processing parameter vector X that matches the type of sea cucumber to be processed, precise and repeatable data-driven instructions replace the vague manual experience in traditional processing. This lays a solid foundation for the standardization of the entire process and solves the problem of poor quality uniformity caused by imprecise control. During the pretreatment and cleaning stages, the maximum oxygenation rate O is precisely calculated. MAX This involves a combination of gentle linear aeration and rhythmic pulsed aeration, along with real-time monitoring of water turbidity (T) using a turbidity sensor. rt Monitoring until the real-time water turbidity T rt Three consecutive times below the cleaning threshold T MIN This method not only effectively alleviates tissue rigor mortis caused by stress in sea cucumbers after slaughter, but also ensures the thorough removal of residual impurities from the body cavity, overcoming the shortcomings of traditional soaking methods, such as low cleanliness and impact on flavor. Most importantly, by maintaining a constant target dissolved oxygen concentration (DO2) during the secondary hydrotherapy, an oxygen-rich environment that inhibits the growth of anaerobic bacteria is actively created, preventing product spoilage and the generation of off-flavor substances such as hydrogen sulfide. Simultaneously, by monitoring the real-time conductivity change (ΔC) of the secondary hydrotherapy solution until it stabilizes within the preset equilibrium range (Cth), the absorption saturation point of nutrients can be intelligently determined. This series of closed-loop feedback controls ensures the high efficiency, cleanliness, and reliability of the sea cucumber processing process and the quality of the final product.

[0072] Embodiment 2

[0073] This embodiment is an explanation and illustration in Embodiment 1, please refer to Figure 1 , specifically: S1 includes S11;

[0074] S11, the staff inputs the type of sea cucumber to be processed and the mass W of sea cucumber at the console S , the console accesses and calls the corresponding processing parameter vector X in the preset rule base;

[0075] The processing parameter vector X in the rule base is set by relevant professionals, including the target processing temperature θ, the target dissolution concentration DO1 of the first hydrotherapy, the target dissolution concentration DO2 of the second hydrotherapy, the target salinity C1 of the first hydrotherapy, the target concentration set C2 of the second hydrotherapy molecules, and the mass ratio M of sea cucumber and liquid solution, and the second hydrotherapy molecules include salt, trehalose, glycine and proline;

[0076] An online dissolved oxygen sensor is arranged in the middle of the first hydrotherapy pool and the second hydrotherapy pool to obtain the oxygen concentration in the pool, an ultrasonic liquid level sensor is arranged above the first hydrotherapy pool and the second hydrotherapy pool to obtain the hydrotherapy solution water level L, and a turbidity sensor is arranged at the drain of the second hydrotherapy pool to obtain the real-time monitoring water turbidity T rt , and a conductivity meter is arranged in the second hydrotherapy pool to obtain the real-time conductivity C rt of the second hydrotherapy solution;

[0077] Among them, the processing parameter vector X in the rule base is established by a large number of orthogonal experiments on different sea cucumber species, and the experimental process is as follows: for the target specific sea cucumber species, different target processing temperature θ, first hydrotherapy target dissolution concentration DO1, second hydrotherapy molecule target concentration set C2 and other variable combinations are set, small batch processing test is carried out, after the test, the rehydration rate, water holding capacity, texture, color and sensory score indexes of the finished sea cucumber are comprehensively evaluated by the quality inspection personnel, and the parameter combination that can obtain the best quality is selected, and the following is an example of the recommended parameter range of the first hydrotherapy target salinity C1 and the second hydrotherapy molecule target concentration set C2 of different sea cucumber species as shown in Table 1:

[0078] Parameter Salted sea cucumber Fresh sea cucumber Pre-cooked sea cucumber First spa target salinity C1 3% 3% 3% Secondary spa molecular target concentration set C2 (secondary spa salt concentration) 0.5%-0.8% 0.2%-0.4% 0.3%-0.6% Secondary hydrotherapy molecular target concentration set C2 (secondary hydrotherapy trehalose concentration) 2.0%-3.0% 1.0%-1.5% 1.5%-2.5% Secondary spa molecular target concentration set C2 (secondary spa glycine concentration) 0.7%-1.0% 0.5%-0.7% 0.6%-0.8% Secondary hydrotherapy molecular target concentration set C2 (secondary hydrotherapy proline concentration) 0.8%-1.0% 0.5%-0.6% 0.6%-0.9%

[0079] The above values are only the recommended parameter range in this embodiment, and the specific values can be set according to actual production needs.

[0080] In this embodiment, by solidifying and precisely defining the processing technology knowledge into a multi-dimensional processing technology parameter vector X, this method transforms the vague manual experience in traditional processing into a standardized set of digital instructions that can be precisely executed by a computer, including the target processing temperature θ, the target salinity C1 for the first hydrotherapy session, and the set of target molecular concentrations C2 for the second hydrotherapy session. This provides a solid data foundation for the refined and standardized execution of all subsequent steps. Simultaneously, this step also includes precisely deploying a series of sensors at different locations on the processing equipment to form the physical basis of the entire closed-loop control. Specifically, online dissolved oxygen sensors are deployed in the first and second hydrotherapy pools to obtain the real-time oxygen concentration in the pools; ultrasonic level sensors are deployed above these two pools to obtain the hydrotherapy solution level L; and a turbidity sensor is deployed at the drain outlet of the second pool in the first hydrotherapy session to obtain the real-time turbidity T of the water. rt In the secondary hydrotherapy pool, a conductivity meter was deployed to obtain the real-time conductivity C of the secondary hydrotherapy solution. rt This deep integration of data commands and physical perception ensures that the method can not only execute preset commands but also perceive real-time states, providing a solid and reliable data foundation and physical carrier for all subsequent intelligent decisions.

[0081] Example 3

[0082] This embodiment is an explanation based on Embodiment 2. Please refer to it. Figure 1 Specifically: S2 includes S21;

[0083] S21, Based on the sea cucumber quality W S The processing parameters include the initial hydrotherapy target salinity C1 and the sea cucumber-to-liquid solution mass ratio M in the vector X. The initial hydrotherapy solution is prepared and its temperature is stably controlled at the target processing temperature θ. The sea cucumbers to be processed are then placed in the first hydrotherapy tank for initial hydrotherapy pretreatment. The first stage of the initial hydrotherapy pretreatment is as follows:

[0084] The first pool of the initial hydrotherapy session was oxygenated using an oxygenation device, allowing the oxygen flow rate (O2) to smoothly increase linearly from 100 L / min to the maximum oxygen flow rate (O2) over 15 minutes. MAX Among them, the maximum oxygenation rate O MAX The concentration of dissolved oxygen (DO1) for the first hydrotherapy session is calculated based on the processing parameter vector X, and must not exceed 300 L / min. If the calculated result exceeds 300 L / min, then 300 L / min is used. The calculation is performed at a specified time t. R Within, a specified volume V of spa solution is drawn from the initial dissolved oxygen concentration (DO) of the first spa treatment. S1The total oxygen mass of the first hydrotherapy maximum dissolved oxygen concentration DO1 is raised, combined with the oxygen supply conversion rate DOT of the oxygen injection equipment, to reversely calculate the maximum oxygenation amount O MAX ;

[0085] The maximum oxygenation amount O MAX The calculation expression is as follows:

[0086] ;

[0087] In the formula, t R1 represents the specified time of the first stage of the first hydrotherapy, 15 minutes in the pretreatment stage of the first hydrotherapy, DO S1 represents the initial dissolved oxygen concentration of the first hydrotherapy, which is obtained by the online dissolved oxygen sensor deployed in the first pool of the first hydrotherapy before the oxygen injection equipment works, V represents the volume of the prepared first hydrotherapy solution, which is obtained by multiplying the water level L of the hydrotherapy solution obtained by the ultrasonic liquid level sensor deployed in the first pool of the first hydrotherapy with the preset pool bottom area S, DOT represents the oxygen supply conversion rate of the oxygen injection equipment, which is obtained by measuring the oxygen concentration change in the liquid within a fixed time with a fixed oxygenation amount combined with the online dissolved oxygen sensor, and the unit is milligrams per liter;

[0088] S2 includes S22;

[0089] S22, the second stage content of the first hydrotherapy pretreatment is as follows:

[0090] When the oxygenation amount O of the oxygen injection equipment reaches the maximum oxygenation amount O MAX , it is converted from continuous oxygen injection to rhythmic pulse oxygen injection with the maximum oxygenation amount O MAX According to the oxygen injection for 10 seconds, then completely stop the oxygen injection and stand for 20 seconds, repeat the cycle of oxygen injection-rest for 15 minutes, complete the first hydrotherapy pretreatment;

[0091] S3 includes S31;

[0092] S31, after the sea cucumber completes the first hydrotherapy pretreatment, it is sent to the second pool of the first hydrotherapy for deep cleaning, and the deep cleaning content is as follows:

[0093] According to the rhythmic pulse oxygen injection mode of the second stage of the first hydrotherapy pretreatment, the second pool of the first hydrotherapy is impacted, and a circulating filter pool is connected to the drain, and the filtered first hydrotherapy solution is transported back to the second pool of the first hydrotherapy, while the turbidity sensor deployed at the drain monitors the real-time water turbidity T rt , the monitoring frequency is once per minute, when the real-time water turbidity T rt is less than the preset cleaning threshold T MIN for three times in a row, it is determined that the cleaning work is completed;

[0094] In this embodiment, according to the quality W of sea cucumber S and the mass ratio M of sea cucumber and liquid solution in the process parameter vector X, and the target salinity C1 of the first hydrotherapy, the first hydrotherapy solution is automatically prepared in the first pool of the first hydrotherapy, and the solution temperature is stably controlled at the target processing temperature θ. After the processed Liaocai sea cucumber is put into the pool, the oxygen injection pretreatment is started. The initial dissolved oxygen concentration DOS1 of the first hydrotherapy is obtained by the online dissolved oxygen sensor deployed in the first pool of the first hydrotherapy, and the water level L of the hydrotherapy solution is obtained by the ultrasonic liquid level sensor and combined with the preset pool bottom area S to calculate the solution volume V. Then, the calculation expression of the maximum oxygenation amount O MAX is called, combined with the maximum dissolved oxygen concentration DO1 of the first hydrotherapy in the process parameter vector X, the specified time t R1 and the oxygen supply conversion rate DOT of the oxygen injection equipment calibrated in advance, the maximum oxygenation amount O MAX required to achieve the target is calculated. If the calculation result of the maximum oxygenation amount O MAX does not exceed 300 L / min, this value is adopted, otherwise 300 L / min is used as the maximum oxygenation amount O MAX . This calculation process ensures that the intensity of subsequent processing is quantifiable and repeatable. On this basis, the pretreatment is started in a controlled and gentle manner: within the first 15 minutes, the oxygenation amount O MAX linearly and smoothly climbs from 100 L / min to the calculated maximum oxygenation amount O MAX . This gradual intervention effectively avoids secondary impact on sea cucumbers with muscle tissue contraction and stiffness due to slaughter. Subsequently, the pretreatment enters the second stage, and the system switches to a rhythmic pulse oxygen injection mode with the maximum oxygenation amount O MAX . The injection is 10 seconds and the standing is 20 seconds, which lasts for 15 minutes. This design combines high-efficiency physical impact with standing period to give the tissue a buffer, forming a low-damage physical massage that effectively loosens the surface and intracavitary impurities while avoiding continuous mechanical force damage to the tissue. After completing the pretreatment, the sea cucumber enters the deep cleaning stage, continues the rhythmic pulse oxygen injection mode, and introduces an end point judgment mechanism for the automatic cleaning process: through the turbidity sensor deployed at the drain, the real-time water turbidity T rt is continuously monitored at a frequency of once per minute, until the real-time water turbidity T rt is less than the preset cleaning threshold T MIN for three consecutive times, it is determined that the purification is completed. This result-oriented closed-loop control completely eliminates the traditional fixed time control mode, ensuring that each batch of sea cucumbers can achieve a unified cleaning standard.

[0095] Embodiment 4

[0096] This embodiment is an explanation and description in embodiment 3, please refer to Figure 1 andFigure 3 Specifically, S4 comprises S41;

[0097] S41, after the cleaning work of sea cucumber is completed, according to the quality W S , the secondary water therapy molecular target concentration ratio C2 in the processing parameter vector X and the mass ratio M of sea cucumber and liquid solution, a secondary water therapy solution with the same volume as the first water therapy solution volume V is prepared, and the solution temperature is stably controlled at the target processing temperature θ, the real-time dissolved oxygen concentration DO rt of the secondary water therapy solution is obtained through the online dissolved oxygen sensor deployed in the secondary water therapy pool, the monitoring frequency is once per minute, according to the secondary water therapy target dissolved oxygen concentration DO2 in the processing parameter vector X, combined with the maximum oxygenation amount O MAX , the real-time oxygenation amount O rt is calculated, and the real-time oxygenation amount O rt is dynamically adjusted;

[0098] Wherein, if the current monitoring result is the real-time dissolved oxygen concentration DO rt of the secondary water therapy solution DO2, send a stop command to the oxygen injection equipment;

[0099] If the current monitoring result is the real-time dissolved oxygen concentration DO rt of the secondary water therapy solution DO2, calculate the real-time oxygenation amount O rt and send a dynamic adjustment instruction according to the calculation result, the real-time oxygenation amount O rt The calculation expression is as follows:

[0100] ;

[0101] In the formula, t R2 represents the monitoring interval of the online dissolved oxygen sensor, and the specific value is 1 minute;

[0102] S5 comprises S51;

[0103] S51, the real-time conductivity C rt of the secondary water therapy solution is monitored through the deployed conductivity meter, the monitoring frequency is once per minute, and after each monitoring is completed, the difference between the real-time conductivity C rt of the secondary water therapy solution and the conductivity C rt-1 of the secondary water therapy solution at the previous time is calculated immediately to obtain the real-time conductivity change value △C of the secondary water therapy solution;

[0104] S5 comprises S52;

[0105] S52, the real-time conductivity change value △C of the secondary water therapy solution is compared with the preset balance interval C th , wherein the preset balance interval Cth This includes the left value C1 of the equilibrium interval and the right value C2 of the equilibrium interval;

[0106] If the real-time conductivity change value ΔC of the secondary hydrotherapy solution does not reach ≥ the left value C1 of the equilibrium interval and ≤ the right value C2 of the equilibrium interval for three consecutive times, it is determined that the sea cucumber has not absorbed the hydrotherapy solution sufficiently, the secondary hydrotherapy is not completed, and the secondary hydrotherapy work should continue.

[0107] If the real-time conductivity change value ΔC of the secondary hydrotherapy solution reaches ≥ the left value C1 of the equilibrium interval and ≤ the right value C2 of the equilibrium interval for three consecutive times, it is determined that the sea cucumber has fully absorbed the hydrotherapy solution and the secondary hydrotherapy has been completed. A stop oxygen injection command is sent to the oxygen injection equipment.

[0108] Among them, the preset equilibrium interval C th The determination of the equilibrium interval left value C1 and equilibrium interval right value C2 is based on the analysis of the conductivity change curve during the secondary hydrotherapy process. During the experimental phase, the conductivity change value ΔC of different sea cucumbers was recorded throughout the secondary hydrotherapy process. When the marginal benefit of the ion exchange process becomes extremely low, the ΔC curve enters a small fluctuation range around zero. The amplitude of this fluctuation is mainly caused by sensor measurement noise and minute temperature and turbulence changes in the water. The upper and lower boundaries of this stable fluctuation range are defined as the equilibrium interval left value C1 and equilibrium interval right value C2.

[0109] S6 includes S61;

[0110] S61. After the secondary hydrotherapy is completed, a stop oxygenation command is sent to the oxygenation equipment, allowing the sea cucumbers to remain still in the secondary hydrotherapy solution until the preset set settling time t is reached. P The secondary hydrotherapy solution is drained to complete the sea cucumber hydrotherapy processing;

[0111] Among them, the preset settling time t P After the second hydrotherapy session, samples were taken for tissue section analysis and component detection at different settling times, such as 5 min, 10 min, 15 min, and 20 min. This determined the shortest time required for the most uniform distribution of absorbed nutrients within the sea cucumber body wall tissue, and this time was used as the preset settling time t for this type of sea cucumber. P .

[0112] The specific example of sea cucumber processing is as follows:

[0113] In this embodiment, the sea cucumbers to be processed are salted sea cucumbers, fresh sea cucumbers after autolytic enzyme inactivation, and pre-cooked sea cucumbers. The range of processing parameters in vector X varies depending on the type of sea cucumber:

[0114] Target processing temperature θ: 0-10℃, target first hydrotherapy dissolution concentration DO1: 3%, seawater and liquid solution mass ratio M: 1:50-1:200, second hydrotherapy target concentration set C2: {salt: 0.2%-0.8%, trehalose: 1%-3%, glycine: 0.5%-1%, proline: 0.5%-1%};

[0115] This example takes fresh sea cucumber after autolysis enzyme as an example:

[0116] Sea cucumber mass W S : 20kg, seawater and liquid solution mass ratio M: 1:80;

[0117] First hydrotherapy maximum dissolved oxygen concentration DO1: 20.0mg / L, oxygen supply conversion rate of oxygen injection equipment: 8.0mg / L;

[0118] Prepared first hydrotherapy solution volume V: 1560L, first hydrotherapy initial dissolved oxygen concentration DO S1 : 5.2mg / L;

[0119] Maximum oxygenation amount O MAX The calculation example is as follows:

[0120] ;

[0121] The end point judgment example of the deep cleaning stage is shown in Table 2:

[0122] Table 2:

[0123] Cleaning time (min) Real-time water turbidity Trt (NTU) whether less than T MIN ]] Remark …… …… …… 18 2.5 No 19 2.1 No 20 1.9 Yes First time to meet the standard 21 1.8 Yes Second time to meet the standard 22 1.7 Yes Third time to meet the standard

[0124] At the 22nd minute, it is monitored that the real-time water turbidity Trt has been less than the preset cleaning threshold TMIN for three times in a row, and it is determined that the deep cleaning work is completed;

[0125] The end point judgment example of the second hydrotherapy stage is shown in Table 3:

[0126] Table 3:

[0127] Secondary water therapy time (min) Secondary spa solution real-time conductivity C rt (μS / cm) Secondary water therapy solution real-time conductivity change value ΔC ((μS / cm) / min) Whether in the Cth interval (≥-5.0 and ≤+5.0) Remark …… …… …… …… …… 57 14445 +15 No 58 14453 +8 No 59 14457 +4 Yes First time to meet the standard 60 14460 +3 Yes Second time to meet the standard 61 14458 -2 Yes Third time to meet the standard

[0128] At the 61st minute, the system monitors that the real-time conductivity change value ΔC of the second hydrotherapy solution has fallen within the preset balance interval C th [-5.0, +5.0] for three times in a row, which indicates that the salt analysis process in the sea cucumber has basically been completed, the internal and external ion concentration gradient tends to disappear, and dynamic balance is reached, so it is determined that the second hydrotherapy has been completed.

[0129] In this embodiment, when the deeply cleaned sea cucumber enters the secondary hydrotherapy pool, first, according to the secondary hydrotherapy molecular target concentration ratio C2 in the processing parameter vector X, the secondary hydrotherapy solution rich in salt, trehalose, glycine and proline is automatically prepared. Then, an intelligent conditioning mode combining active environment creation and passive biological state sensing is started. On the one hand, in order to create the best biochemical environment for the absorption of nutrients, the real-time dissolved oxygen concentration DO in the secondary hydrotherapy solution is continuously monitored by an online dissolved oxygen sensor at a frequency of once per minute rt , and compared with the target dissolved oxygen concentration DO2 set in the processing parameter vector X in real time, and the real-time oxygen supply amount O rt is dynamically adjusted in real time to ensure that the dissolved oxygen is always constant at the target level, thereby effectively inhibiting microbial activity and oxidative deterioration. On the other hand, the processed sea cucumber itself is converted into a biological sensor to determine the end point of the conditioning process. The real-time conductivity C rt of the secondary hydrotherapy solution is monitored in real time, and the minute-to-minute change value ΔC of the real-time conductivity of the secondary hydrotherapy solution is calculated. The real-time conductivity change value ΔC of the secondary hydrotherapy solution directly reflects the real-time rate of ion absorption by the sea cucumber. When the absorption capacity of the sea cucumber tends to be saturated, its absorption rate will decrease significantly, and the ΔC value will also decrease accordingly until it stabilizes in a constant interval. Only when the real-time conductivity change value ΔC of the secondary hydrotherapy solution stabilizes in the preset equilibrium interval Cth for three consecutive times, it is determined that the absorption process has been completed. Finally, all interventions are stopped, and the sea cucumber is allowed to stand in the nutritionally balanced solution for a preset standing time tP to achieve final tissue stabilization, ensuring uniform distribution of absorbed substances in the tissue, and promoting water penetration through the water flow brought by oxygen injection. After this step, the dried sea cucumber has formed channels and water-locking structures that facilitate rapid water penetration. When consumers rehydrate, water can penetrate more quickly and evenly, thereby achieving shorter hydration time and more uniform expansion. This method upgrades the traditional one-way processing-execution mode to a two-way application-response interaction mode, intelligently decides through active creation of a constant and excellent environment and the absorption state of the sea cucumber, thereby fundamentally solving the core pain points of inconsistent taste, flavor and morphology of the final product due to insufficient or excessive conditioning.

[0130] Embodiment 5

[0131] An easy-to-release sea cucumber processing control system based on oxygen injection and hydrotherapy, please refer to Figure 2 , specifically: including process parameter acquisition module, cleaning pretreatment module, deep cleaning module, constant dissolved oxygen control module, time dynamic decision module and state stabilization module;

[0132] The process parameter acquisition module inputs the type of sea cucumber to be processed and the mass W of the sea cucumber by the staff on the consoleS The console accesses and retrieves the corresponding processing parameter vector X from the preset rule base, and deploys multiple sensors in the spa pool;

[0133] The cleaning pretreatment module adjusts the cleaning process according to the sea cucumber quality W. S Prepare the initial hydrotherapy solution based on the process parameter vector X, and calculate the maximum oxygen flux O based on the maximum dissolved oxygen concentration DO1 in the initial hydrotherapy of the process parameter vector X. MAX The sea cucumbers underwent their first hydrotherapy pretreatment.

[0134] After undergoing initial pre-treatment with sea cucumbers, the deep cleaning module transfers them to the second pool of the initial spa for deep cleaning. The real-time turbidity (T) of the water is monitored by a turbidity sensor at the drain outlet. rt Reaching the preset cleaning threshold T MIN When required, the deep cleaning work is deemed complete;

[0135] The constant dissolved oxygen control module controls the dissolved oxygen based on the sea cucumber mass W. S The secondary hydrotherapy solution was prepared based on the processing parameter vector X, and the real-time oxygen flux (O2) was calculated based on the target dissolved oxygen concentration (DO2) in the secondary hydrotherapy solution from the processing parameter vector X. rt Dynamically adjust the real-time oxygen flow rate (O2). rt ;

[0136] The duration dynamic decision module monitors the real-time conductivity C of the secondary hydrotherapy solution using a deployed conductivity meter. rt When the real-time conductivity change value ΔC of the secondary hydrotherapy solution reaches the preset equilibrium range C th Upon request, the second hydrotherapy session is deemed complete;

[0137] After the stabilization module completes the secondary hydrotherapy, oxygenation is stopped, and the sea cucumbers are left to stand in the secondary hydrotherapy solution for the preset set time t. P The secondary hydrotherapy solution is drained to complete the sea cucumber hydrotherapy processing;

[0138] The system includes an input terminal and an output terminal connected by electrical signals;

[0139] The input terminals include the following:

[0140] The human-machine interface allows staff to input initial commands such as the type and quality (WS) of the sea cucumbers to be processed, corresponding to some functions of the process parameter acquisition module. Online dissolved oxygen sensors are deployed in the first and second water tanks of the initial hydrotherapy session to provide real-time dissolved oxygen concentration signals to the PLC. Ultrasonic level sensors are deployed above all tanks to provide the PLC with the hydrotherapy solution level (L) signal. A turbidity sensor is deployed at the drain outlet of the second water tank of the initial hydrotherapy session to provide the PLC with real-time water turbidity (T). rtsignals, conductivity meters are deployed in the secondary spa water pool to provide real-time conductivity C of the secondary spa solution to the PLC rt signals;

[0141] The output end includes the following:

[0142] The electromagnetic valve of the oxygen injection device and the flow regulator are used to accurately control the start-stop and size of the oxygen flow according to the instructions of the PLC, the water pump is used for the preparation, circulation and discharge of the solution, and the temperature control unit is used to stabilize the solution temperature at the target processing temperature θ.

[0143] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, replacements and changes can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A method for controlling the processing of a susceptible marine organism based on oxygen injection in combination with hydrotherapy, characterized by: The method comprises the following steps: S1, the staff inputs the type and weight W of the sea cucumber to be processed on the console S The console accesses and calls the corresponding processing parameter vector X in the preset rule base, and deploys multiple sensors in the middle of the hydrotherapy pool. S2, according to the quality of sea cucumber W S and the processing process parameter vector X to prepare the first hydrotherapy solution, and calculate the maximum oxygenation amount O according to the maximum dissolved oxygen concentration DO1 in the processing process parameter vector X MAX , the first hydrotherapy pretreatment is carried out on the sea cucumber; S3, after the first hydrotherapy pretreatment, the sea cucumber is sent to the second pool for deep cleaning, and the turbidity sensor of the drain monitors the real-time water turbidity T rt The preset cleaning threshold T is reached MIN When required, it is determined that the deep cleaning work is completed; S4, according to the quality of sea cucumber W S and the processing process parameter vector X to prepare the secondary water therapy solution, according to the secondary water therapy target dissolved oxygen concentration DO2 in the processing process parameter vector X, calculate the real-time oxygenation amount O rt , dynamically adjust the real-time oxygenation amount O rt ; S5, monitoring the real-time conductivity C of the secondary spa solution by the deployed conductivity meter rt When the real-time conductivity change value AC of the secondary spa solution reaches the preset balance interval C th When required, determining that the secondary spa is completed; S6, stop oxygen injection after the completion of the secondary hydrotherapy, and the sea cucumber is placed in the secondary hydrotherapy solution for a preset standing time t P The secondary hydrotherapy solution is discharged to complete the hydrotherapy processing of the sea cucumber.

2. The method according to claim 1, wherein the method is based on oxygen injection and water therapy. S1 comprises S11; S11, the staff inputs the type of sea cucumber to be processed and the weight W of the sea cucumber on the console S , the console accesses and calls the corresponding processing parameter vector X in the preset rule base; The processing parameter vector X in the rule base is set by relevant professionals, including target processing temperature θ, first hydrotherapy target dissolved concentration DO1, second hydrotherapy target dissolved concentration DO2, first hydrotherapy target salinity C1, second hydrotherapy molecule target concentration set C2, seawater and liquid solution mass ratio M, and the second hydrotherapy molecules include salt, trehalose, glycine and proline; An online dissolved oxygen sensor is arranged in the first spa pool and the middle of the second spa pool to obtain the oxygen concentration in the pool, an ultrasonic liquid level sensor is arranged above the first spa pool and the second spa pool to obtain the spa solution water level L, and a turbidity sensor is arranged at the drain of the second spa pool to obtain the real-time monitoring water turbidity T rt An electrical conductivity meter is arranged in the second spa pool to obtain the real-time electrical conductivity C of the second spa solution rt .

3. The method according to claim 2, wherein the method is based on oxygen injection and water therapy. S2 comprises S21; S21、according to the quality W of the sea cucumber S , a first hydrotherapy target salinity C1 in the processing parameter vector X and a mass ratio M of the sea cucumber and the liquid solution, a first hydrotherapy solution is prepared and the temperature of the solution is stably controlled at a target processing temperature θ, and the sea cucumber to be processed is put into a first hydrotherapy first pool for first hydrotherapy pretreatment. The first stage of the first hydrotherapy pretreatment includes the following contents: The oxygen injection equipment is used to inject oxygen into the first pool for the first hydrotherapy, so that the oxygen flow O is smoothly increased in a linear increasing manner from 100 L / min to the maximum oxygen flow O within 15 minutes MAX , wherein the maximum oxygen flow O MAX is calculated according to the first hydrotherapy maximum dissolved oxygen concentration DO1 in the processing process parameter vector X and cannot exceed 300 L / min, if the calculation result exceeds 300 L / min, 300 L / min is taken, the calculation is within the specified time t R , the total oxygen mass of the specified volume V of the hydrotherapy solution from the first hydrotherapy initial dissolved oxygen concentration DO S1 to the first hydrotherapy maximum dissolved oxygen concentration DO1, combined with the oxygen supply conversion rate DOT of the oxygen injection equipment, the maximum oxygen flow O MAX is reversely calculated; where the maximum oxygen flow Omax MAX The calculation expression is as follows: ； where t R1 represents the first water therapy first stage specified time, 15 minutes in the first water therapy pretreatment stage, DO S1 represents the first water therapy initial dissolved oxygen concentration, obtained by the on-line dissolved oxygen sensor deployed in the first water pool of the first water therapy before the oxygen injection device works, V represents the volume of the prepared first water therapy solution, obtained by multiplying the water level L of the water therapy solution obtained by the ultrasonic liquid level sensor deployed in the first water pool of the first water therapy and the preset pool bottom area S, DOT represents the oxygen supply conversion rate of the oxygen injection device, obtained by combining the on-line dissolved oxygen sensor, measuring the oxygen concentration change in the liquid in a fixed oxygen amount in a fixed time, and the unit is expressed in milligrams per liter.

4. The method according to claim 3, wherein the method is based on oxygen injection and water therapy. S2 comprises S22; S22, the first hydrotherapy pretreatment second stage content is as follows: The oxygen supply capacity of the oxygen injection equipment reached its maximum. MAX At that time, the continuous oxygen injection was switched to rhythmic pulse oxygen injection, with the maximum oxygen flow rate O2. MAX Perform the following routine: infuse oxygen for 10 seconds, then completely stop the oxygen infusion and let it rest for 20 seconds. Repeat this oxygen infusion-rest cycle for 15 minutes to complete the first hydrotherapy pretreatment.

5. The method according to claim 4, wherein the method is based on oxygen injection and water therapy. S3 comprises S31; S31, after the completion of the first hydrotherapy pretreatment of the sea cucumber, the sea cucumber is sent to the first hydrotherapy second pool for deep cleaning, and the deep cleaning content is as follows: The first hydrotherapy second pool is impacted according to the rhythmic pulse oxygen injection mode of the second stage of the first hydrotherapy pretreatment, and a circulating filter pool is connected to the drain, and the filtered first hydrotherapy solution is transported back to the first hydrotherapy second pool, and the real-time water turbidity T is monitored by the turbidity sensor arranged at the drain rt , the monitoring frequency is once per minute, and when the real-time water turbidity T rt is less than three times the preset cleaning threshold T MIN , it is determined that the cleaning work is completed.

6. The method according to claim 2, wherein the method is based on oxygen injection and water therapy. S4 comprises S41; S41, after the sea cucumber cleaning work is completed, according to the sea cucumber quality W S , the secondary water therapy molecular target concentration ratio C2 in the processing parameter vector X and the mass ratio M of sea cucumber and liquid solution, the same volume of secondary water therapy solution as the first water therapy solution volume V is prepared and the solution temperature is stably controlled at the target processing temperature θ, the real-time dissolved oxygen concentration DO of the secondary water therapy solution is obtained through the online dissolved oxygen sensor deployed in the secondary water therapy pool rt , the monitoring frequency is once per minute, according to the secondary water therapy target dissolved oxygen concentration DO2 in the processing parameter vector X, combined with the maximum oxygenation amount O MAX , the real-time oxygenation amount O rt is calculated according to the calculation formula, and the real-time oxygenation amount O rt is dynamically adjusted; If the current monitoring result is the real-time dissolved oxygen concentration DO of the secondary spa solution rt and the target dissolved oxygen concentration DO2 of the secondary spa is greater than the target dissolved oxygen concentration DO1 of the primary spa, the method further comprises: sending a stop command to the oxygen injection device. If the current monitoring result is the real-time dissolved oxygen concentration DO of the secondary spa solution rt ≤ the secondary spa target dissolved oxygen concentration DO2, calculate the real-time oxygen supply O rt and send a dynamic adjustment instruction according to the calculation result, the real-time oxygen supply O rt The calculation expression is as follows: ； In the formula, t R2 represents the monitoring interval of the online dissolved oxygen sensor, and specifically takes a value of 1 minute.

7. The method according to claim 6, wherein the method is based on oxygen injection and water therapy. S5 comprises S51; S51. Monitor the real-time conductivity C of the secondary hydrotherapy solution using a deployed conductivity meter. rt The monitoring frequency is once per minute, and the real-time conductivity C of the secondary hydrotherapy solution is calculated immediately after each monitoring. rt The conductivity C of the secondary hydrotherapy solution at the previous moment rt-1 The difference was used to obtain the real-time conductivity change value ΔC of the secondary hydrotherapy solution.

8. The method according to claim 7, wherein the method is based on oxygen injection and water therapy. S5 comprises S52; S52, the real-time conductivity change value AC of the secondary spa solution is compared with the preset balance interval C th The comparison is made, wherein the preset balance interval C th comprises a balance interval left value C1 and a balance interval right value C2; If the real-time conductivity change value △C of the second hydrotherapy solution does not reach ≥left value C1 and ≤right value C2 of the balance interval for three times in succession, it is determined that the sea cucumber does not absorb the hydrotherapy solution sufficiently, the second hydrotherapy is not completed, and the second hydrotherapy work is continued to be executed; If the real-time conductivity change value △C of the second hydrotherapy solution reaches ≥left value C1 and ≤right value C2 of the balance interval for three times in succession, it is determined that the sea cucumber absorbs the hydrotherapy solution sufficiently, the second hydrotherapy is completed, and a stop oxygen injection instruction is sent to the oxygen injection equipment.

9. The method according to claim 8, wherein the method is based on oxygen injection and water therapy. S6 comprises S61; S61, after the secondary hydrotherapy is completed, a stop oxygen injection instruction is sent to the oxygen injection equipment, so that the sea cucumber is placed in the secondary hydrotherapy solution until a preset standing time t is reached P The sea cucumber hydrotherapy processing is completed by discharging the secondary hydrotherapy solution.

10. An easy-to-occur sea pollution control system based on oxygen injection combined with hydrotherapy, applied to the easy-to-occur sea pollution control method based on oxygen injection combined with hydrotherapy in any one of claims 1-9, characterized in that: The system comprises a process parameter acquisition module, a cleaning pretreatment module, a deep cleaning module, a constant dissolved oxygen control module, a time length dynamic decision module and a state stabilization module. The process parameter acquisition module inputs the sea cucumber species to be processed and the sea cucumber mass W through a worker at a console S The console accesses and calls the corresponding processing process parameter vector X in the preset rule library, and deploys multiple sensors in the middle of the hydrotherapy pool. The cleaning pretreatment module prepares the first hydrotherapy solution according to the quality W of the sea cucumber and a processing parameter vector X, and performs first hydrotherapy pretreatment on the sea cucumber according to the maximum oxygenation amount O calculated according to the maximum dissolved oxygen concentration DO1 in the processing parameter vector X S . MAX ​ The deep cleaning module is sent to the second water pool for deep cleaning after the first water therapy pretreatment by the sea cucumber. The turbidity sensor of the drain opening monitors the real-time water turbidity T rt The preset cleaning threshold T is reached MIN When required, it is determined that the deep cleaning work is completed; The constant dissolved oxygen control module prepares the secondary hydrotherapy solution by matching the sea cucumber mass W S and the processing parameter vector X, calculates the real-time oxygenation amount O rt according to the secondary hydrotherapy target dissolved oxygen concentration DO2 in the processing parameter vector X, and dynamically adjusts the real-time oxygenation amount O rt ; The time length dynamic decision module monitors the real-time conductivity C of the secondary spa solution through the deployed conductivity meter rt When the real-time conductivity change value AC of the secondary spa solution reaches the preset balance interval C th When required, determine that the secondary spa is completed; The state stabilizing module stops oxygen injection after the secondary hydrotherapy is completed, and the sea cucumber is placed in the secondary hydrotherapy solution to reach a preset standing time t P , and the secondary hydrotherapy solution is discharged to complete the sea cucumber hydrotherapy processing; The system comprises an input end and an output end connected through an electric signal. The input end comprises the following: The human-computer interaction interface is used for the staff to input initial instructions such as the kind of sea cucumber to be processed and the quality WS of sea cucumber, and corresponds to part of the function of the process parameter acquisition module. The online dissolved oxygen sensor is arranged in the first water pool for the first water therapy and the second water pool for the second water therapy, and is used to provide a real-time dissolved oxygen concentration signal to the PLC. The ultrasonic liquid level sensor is arranged above all the water pools, and is used to provide a water therapy solution water level L signal to the PLC. The turbidity sensor is arranged at the drain of the second water pool for the first water therapy, and is used to provide a real-time water body turbidity T signal to the PLC. The conductivity meter is arranged in the second water pool for the second water therapy, and is used to provide a real-time conductivity C signal of the second water therapy solution to the PLC. rt rt ​​ The output end comprises the following: The electromagnetic valve and the flow regulator of the oxygen injection equipment are used to accurately control the start and stop and size of the oxygen amount according to the instruction of the PLC, the water pump is used for solution preparation, circulation and discharge, and the temperature control unit is used to stabilize the solution temperature at the target processing temperature θ.

Images