Chicken essence processing quality monitoring control system

Abstract

The present application relates to the technical field of chicken essence processing quality monitoring, and specifically provides a chicken essence processing quality monitoring control system. The system realizes intelligent regulation and control of the operating parameters of a horizontal vibration fluidized bed through the collaborative work of temperature and humidity monitoring, vibration motor control, hot air control and processing quality monitoring modules. The core of the system is to monitor the temperature and humidity data of the hot air outlet in real time, and convert them into absolute humidity values for trend analysis, so as to sensitively perceive the subtle changes of the material feeding state in the processing process. Based on the fluctuation of the absolute humidity, the system can actively and in advance adjust the operating parameters of the hot air system and the vibration motor, and change the quality control from the traditional "after-the-fact remedy" to "intervening in the process" and "preventing beforehand". This intelligent control strategy significantly improves the stability and consistency of the chicken essence product quality.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of chicken essence processing quality monitoring, in particular to a chicken essence processing quality monitoring control system. BACKGROUND

[0002] In the modern processing of chicken essence, the horizontal vibration fluidized bed is one of the key processing equipment, which integrates multiple functional units such as vibration conveying and hot air treatment. However, the existing control system mainly focuses on the independent regulation and control of a single or a few process parameters (such as temperature, vibration frequency), and lacks the ability of comprehensive judgment and collaborative intervention of the coupling influence between multiple key parameters.

[0003] Secondly, in the drying process of chicken essence, the change of the feeding state of chicken essence (i.e. the fluctuation of the feeding speed of chicken essence) will directly affect the quality of the final product, such as the moisture content of the chicken essence particle finished product. The traditional monitoring method is difficult to capture these subtle state changes in real time and accurately and make timely response, which easily leads to insufficient control precision of the key indicators of chicken essence finished product, that is, the consistency of the finished product quality of chicken essence product is difficult to be stably guaranteed, which cannot meet the increasingly improved food processing quality control requirements. SUMMARY

[0004] The purpose of the present application is to provide a chicken essence processing quality monitoring control system to improve the problem that the simple control of the existing control system focusing on a single process parameter cannot make timely dynamic response based on the feeding state of chicken essence, which further leads to the difficulty in stably guaranteeing the consistency of the finished product quality of chicken essence.

[0005] In order to achieve the above purpose, the embodiments of the present application provide the following technical solutions:

[0006] The embodiments of the present application provide a chicken essence processing quality monitoring control system, which is suitable for a horizontal vibration fluidized bed, the fluidized bed includes an elastically supported fluidized bed body, a vibration motor and a hot air system, and the system includes:

[0007] A temperature and humidity monitoring module arranged at the air outlet of the hot air system, for monitoring the real-time temperature and real-time relative humidity at the air outlet of the hot air system in real time;

[0008] A vibration motor control module for controlling the vibration frequency of the vibration motor;

[0009] A hot air control module for controlling the air intake amount and air intake temperature of the hot air system;

[0010] The processing quality monitoring module is connected with the temperature and humidity monitoring module, the vibration motor control module and the hot air control module, is used for receiving the real-time temperature and the real-time relative humidity fed back by the temperature and humidity monitoring module in real time, calculating the real-time absolute humidity value based on the real-time temperature and the real-time relative humidity, and controlling the processing process parameters of the chicken essence based on the fluctuation of the real-time absolute humidity value through the vibration motor control module and the hot air control module, so as to ensure the processing quality of the chicken essence.

[0011] Optionally, the processing process parameters of the chicken essence are controlled based on the fluctuation of the real-time absolute humidity value through the vibration motor control module and the hot air control module, so as to ensure the processing quality of the chicken essence, comprising:

[0012] In the case that the real-time absolute humidity value exceeds the first humidity threshold value, a first slope is constructed based on the historical absolute humidity value fluctuation curve, and a second humidity threshold value is calculated based on the first slope;

[0013] The difference between the second humidity threshold value and the first humidity threshold value is used to retrieve the hot air system control parameter in the running parameter table, and the hot air system control parameter is sent to the hot air control module, so that the hot air control module adjusts the air intake amount and air intake temperature of the hot air system;

[0014] After adjustment, the control effectiveness is continuously observed and verified, and in the case that the control effect is not good, the vibration frequency of the vibration motor is adjusted through the vibration motor control module, so as to ensure the processing quality of the chicken essence.

[0015] Optionally, the second humidity threshold value is calculated based on the first slope, comprising:

[0016] The second humidity threshold value is calculated based on the current absolute humidity value, the first slope and the redundant drying time, wherein the redundant drying time is 60% to 80% of the total drying time.

[0017] Optionally, after adjustment, the control effectiveness is continuously observed and verified, and in the case that the control effect is not good, the vibration frequency of the vibration motor is adjusted through the vibration motor control module, so as to ensure the processing quality of the chicken essence, comprising:

[0018] The temperature and humidity at the air outlet fed back by the temperature and humidity monitoring module are used to monitor the absolute humidity value after control in real time, and if the absolute humidity value after control is still not stable or shows a downward trend within the control effectiveness verification period, the corresponding vibration motor working frequency adjustment parameter is retrieved in the running parameter table based on the absolute humidity value fluctuation value within the control effectiveness verification period, and the working frequency adjustment parameter is sent to the vibration motor control module, so as to reduce the working frequency of the vibration motor and slow down the advancing speed of the chicken essence particles on the fluidized bed body.

[0019] Optionally, after reducing the working frequency of the vibration motor and slowing down the advancing speed of the chicken essence particles on the fluidized bed body, the method further comprises:

[0020] The total drying time is calibrated based on the adjusted working frequency of the vibration motor, and the length of the secondary calibration effective verification period is calibrated based on the regulated total drying time, and the absolute humidity value in the secondary calibration effective verification period is continuously monitored to determine whether the absolute humidity value tends to be stable or shows a downward trend, and if the absolute humidity value still does not tend to be stable or shows a downward trend, an abnormal feeding instruction is sent and the feeding end of the horizontal vibration fluidized bed drying equipment is cut off, so that the operator adjusts the feeding speed of the horizontal vibration fluidized bed drying equipment.

[0021] The beneficial effects of the present application are:

[0022] The chicken essence processing quality monitoring control system introduces a temperature and humidity monitoring module, a vibration motor control module, a hot air control module, and a processing quality monitoring module, and cooperates with the intelligent decision program built in the processing quality monitoring module, to realize intelligent temperature and humidity monitoring, and timely adjust the operating parameters of the horizontal vibration fluidized bed based on the monitored temperature and humidity data through the vibration motor control module or the hot air control module, thereby ensuring the processing quality of the chicken essence.

[0023] Specifically, the implementation manner of the above beneficial effects is:

[0024] The chicken essence processing quality monitoring control system can more early and more sensitively perceive the subtle changes in the material state during processing by monitoring the temperature and humidity of the hot air outlet in real time and converting it into absolute humidity value for trend analysis, and then based on the fluctuation of the absolute humidity value, the chicken essence processing quality monitoring control system can actively adjust the operating parameters of the hot air system and the vibration motor in advance, changing the quality control from the traditional "after-the-fact remedy" to "intervening in the process" or even "preventing beforehand", and improving the stability and consistency of the quality of the finished chicken essence.

[0025] Other features and advantages of the present application will be set forth in the following description, and in part will become apparent to those skilled in the art from the description, or can be learned by practice of the application as described in the written description and claims. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0027] Figure 1 is a chicken essence processing quality monitoring control system structure schematic diagram described in the embodiment of the present application. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present application.

[0029] It should be noted that: similar numbers or letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. At the same time, in the description of the present application, the terms "first", "second" and the like are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0030] Embodiment 1:

[0031] As shown in Figure 1 The present embodiment provides a chicken essence processing quality monitoring control system, which is suitable for a horizontal vibration fluidized bed. The horizontal vibration fluidized bed comprises an elastically supported fluidized bed body, a vibration motor and a hot air system. The hot air system is used to dry the chicken essence particles on the fluidized bed body through a gas distribution plate arranged at the bottom of the fluidized bed body. The vibration motor is used to provide excitation force to the fluidized bed body. By adjusting the vibration frequency and amplitude of the vibration motor, the forward speed of the chicken essence particles on the fluidized bed can be indirectly adjusted. The above-mentioned horizontal vibration fluidized bed is a conventional processing equipment in the industry. The function of this processing procedure is to reduce the water content of chicken essence from the original 20% to 40% to 8% to 12%, so as to meet the packaging requirements. The specific structure is slightly different due to different manufacturers, but the overall core components and working principles of the core components are roughly the same, which will not be described here.

[0032] The system comprises a temperature and humidity monitoring module arranged at the air outlet of the hot air system, which is used to monitor the real-time temperature and real-time relative humidity at the air outlet of the hot air system during the drying of chicken essence particles in the horizontal vibration fluidized bed drying equipment. Specifically, the temperature and humidity values at the air outlet of the hot air system are obtained in real time by a temperature sensor and a humidity sensor. However, the detection value of the humidity sensor will fluctuate with the change of temperature, because the detection principle of the humidity sensor is relative humidity = (actual water vapor pressure / saturated water vapor pressure) x 100%. The higher the temperature, the greater the maximum amount of water vapor that air can hold (saturated water vapor pressure). The lower the temperature, the smaller the amount that can be held. This results in inaccurate humidity values monitored by the humidity sensor when the ambient humidity remains unchanged and the ambient temperature changes significantly. To overcome this defect, the application uses temperature + relative humidity to calculate the absolute humidity of the environment, which does not change with temperature. The way of calculating absolute humidity by temperature + relative humidity is a conventional technical means, which will not be described here.

[0033] A vibration motor control module is used to control the vibration frequency of the vibration motor, which is used to provide excitation force to the fluidized bed body. The processing object of the embodiment is chicken essence particles, which are brittle and granular (not powdery). Therefore, the vibration amplitude of the vibration motor will not be adjusted during the adjustment process, which will increase the risk of chicken essence particle cracking. Therefore, the vibration frequency of the vibration motor is only adjusted in this embodiment.

[0034] A hot air control module is used to control the air intake and air temperature of the hot air system. The air intake and air temperature are the priority adjustment objects, but the adjustment range is not large, and only small range of feed fluctuations can be handled. Too much air intake will cause chicken essence particles to be discharged with the wind. The drying temperature is affected by the process, and the adjustment range is also small. In the case of poor adjustment effect, the control of the vibration motor is introduced.

[0035] A processing quality monitoring module is connected with the temperature and humidity monitoring module, the vibration motor control module and the hot air control module, which is used to receive the real-time temperature and real-time relative humidity fed back by the temperature and humidity monitoring module in real time, and calculate the real-time absolute humidity value based on the real-time temperature and real-time relative humidity. The processing quality monitoring module controls the processing parameters of chicken essence based on the fluctuation of real-time absolute humidity value through the vibration motor control module and the hot air control module, so as to ensure the processing quality of chicken essence. The principle of the control logic of the above processing quality monitoring module is described as follows:

[0036] As a common drying equipment, the horizontal vibration fluidized bed is connected with the discharge port of the previous process at the feeding end. Limited by the processing technology or the layout of the production line, the feeding speed of the feeding port is not constant but fluctuates in a small range. The most intuitive reflection of this fluctuation is that the absolute humidity value at the air outlet of the hot air system will fluctuate accordingly, which provides the feasibility for the present application to indirectly reflect the fluctuation of the feeding speed of the feeding port based on the fluctuation of the absolute humidity value.

[0037] The chicken essence processing quality monitoring control system described in the embodiment realizes intelligent temperature and humidity monitoring by introducing a temperature and humidity monitoring module, a vibration motor control module, a hot air control module and a processing quality monitoring module, and adjusting the operating parameters of the horizontal vibration fluidized bed in a timely manner through the vibration motor control module or the hot air control module based on the monitored temperature and humidity data, thereby ensuring the processing quality of the chicken essence.

[0038] Specifically, the implementation of the above beneficial effects is:

[0039] The chicken essence processing quality monitoring control system can more early and more sensitively perceive the subtle changes of the material state in the processing process by monitoring the temperature and humidity of the hot air outlet in real time and converting it into absolute humidity value for trend analysis, and then based on the fluctuation of the absolute humidity value, the chicken essence processing quality monitoring control system can actively adjust the operating parameters of the hot air system and the vibration motor in advance, changing the quality control from the traditional "after-the-fact remedy" to "intervening in the process" or even "preventing in advance", thereby improving the stability and consistency of the quality of the chicken essence product

[0040] Embodiment 2:

[0041] Based on embodiment 1, the present embodiment is used to further illustrate the specific implementation of controlling the processing parameters of the chicken essence based on the fluctuation of the real-time absolute humidity value through the vibration motor control module and the hot air control module, thereby ensuring the processing quality of the chicken essence:

[0042] Before elaborating, a brief elaboration of the entire control logic is needed:

[0043] When the feeding speed is abnormal, such as too fast, the number of chicken essence particles on the fluidized bed body will increase, and in this case, the absolute humidity at the air outlet of the hot air system will increase significantly when the air inlet amount and the air inlet temperature of the hot air system remain unchanged. However, for short-term and small-amount feeding speed fluctuations, this increase is not sustainable, and the system is pre-set with a corresponding redundancy value to compensate for small-magnitude and short-term feeding speed fluctuations. However, when there is a significant increase in feeding speed accompanied by a long duration, it will cause the absolute humidity at the air outlet to break through the pre-set first humidity threshold, which is used to trigger the processing quality monitoring module to perform control detection. The specific control detection method is described below. The basis for determining the effectiveness of the control is whether the absolute humidity value at the air outlet tends to be stable or even shows a downward trend, but it needs to be lower than the maximum absolute humidity threshold (exceeding the maximum absolute humidity threshold, this parameter is no longer reference, at this time the unit feeding amount of chicken essence has exceeded the drying limit of the current horizontal vibration fluidized bed, and it does not have the operability of control, at this time it will directly trigger the stop production line operation instruction, which is a major production accident. ). The stable region of the absolute humidity value indicates that the humidity has not further increased, indicating that the drying speed of the horizontal vibration fluidized bed after control matches the current feeding speed, that is, the purpose of control is to prevent the absolute humidity value from further increasing when it is less than the maximum absolute humidity value, at this time the drying speed represents the current drying requirement of the unit feeding amount of chicken essence.

[0044] Step S100, in the case that the real-time absolute humidity value exceeds the first humidity threshold, the first absolute humidity value fluctuation curve within 5-8 seconds before the current time node is retrieved, and the first slope corresponding to the first absolute humidity value fluctuation curve is constructed. The first slope can be obtained by fitting a slope line that fits the first absolute humidity value fluctuation curve. The specific fitting method is a prior art and is not described here. The first humidity threshold is a redundancy upper limit. When the feeding speed is too fast and the duration is long, the increased chicken essence material will significantly increase the humidity value until it is greater than the first humidity threshold. At this time, the specific fluctuation of the feeding speed needs to be preliminarily determined based on the recent history. This situation can be indirectly determined by observing the rising rate of the first absolute humidity value. The greater the rising rate, the greater the feeding speed increase. Therefore, the first slope based on the rising amplitude of the first absolute humidity value is used to retrieve the pre-set control parameters from the internal operating parameter library. The specific method is described below.

[0045] Step S200, based on the current absolute humidity value, the first slope and the redundant drying time (the redundant drying time is 60%-80% of the total drying time, and the specific value is artificially calibrated according to the parameters of the horizontal vibration fluidized bed drying equipment provided by the manufacturer) to calculate the second humidity threshold, the second humidity threshold is a kind of short-term theoretical prediction value, the second humidity threshold can indirectly reflect the humidity peak value that will be reached within the redundant drying time if the existing drying parameters are not modified and the feeding speed of the feeding port still maintains a larger feeding speed, therefore the difference between the second humidity threshold and the first humidity threshold can indirectly reflect the urgency of regulation, the larger the value, the greater the regulation strength, and the specific regulation method is: based on the difference, the hot air system regulation parameters including the outlet air temperature and the unit outlet air quantity are retrieved from the running parameter table, and then the drying speed of the chicken essence particles on the fluidized bed body is accelerated by the hot air system;

[0046] Step S300, the absolute humidity value after regulation is detected in real time by the temperature and humidity monitoring module at the air outlet, that is, the temperature sensor and the humidity sensor, if the absolute humidity value after regulation is still not stable or shows a downward trend within the regulation effectiveness verification period (the regulation effectiveness verification period is 20%-25% of the total drying time), then the corresponding working frequency adjustment parameter of the vibration motor is retrieved from the running parameter table based on the rising value of the absolute humidity value within the regulation effectiveness verification period, and then the working frequency of the vibration motor is reduced to slow down the forward speed of the chicken essence particles on the fluidized bed body; a brief description of the control logic in steps S200-S300 is given here, after triggering the exception, the corresponding hot air regulation parameter can be obtained according to the predicted second humidity threshold, at this time the inlet air temperature and the inlet air speed of the hot air system will be increased to a certain extent, but the effect of the increase is based on the artificially calibrated parameter under the ideal state, the ideal state here is that the feeding speed is no longer further increased or even the feeding speed is reduced to recover to the preset reasonable range, at this time the hot air parameter of the regulation is completely capable of coping with the sudden increase of the feeding speed for a long time, at this time the absolute humidity value will gradually tend to be stable within the regulation effectiveness verification period, but if the feeding speed is further increased, the regulation will still be ineffective, which is manifested as that the absolute humidity value is still in the rising trend within the regulation effectiveness verification period, at this time the hot air system needs to be adjusted, on the one hand, the redundant regulation strength value is small, on the other hand, the adjustment reference value is lost, at this time the total drying time needs to be extended to increase the total drying time, specifically to reduce the transportation speed of the material.

[0047] Step S400, based on the adjusted working frequency of the vibration motor, calibrating the total drying time, and based on the adjusted total drying time, secondly calibrating the length of the control effectiveness verification period, and continuously paying attention to whether the absolute humidity value tends to be stable or shows a downward trend in the secondly calibrated control effectiveness verification period, if the absolute humidity value still does not tend to be stable or shows a downward trend, an abnormal feeding instruction is sent and the feeding end of the horizontal vibration fluidized bed drying equipment is cut off, so that the on-site operator adjusts the feeding speed of the horizontal vibration fluidized bed drying equipment.

[0048] Briefly describe the control time length of steps S200-S400, when the feeding speed abnormally increases and continues, this abnormality will make the absolute humidity value greater than the first humidity threshold in the first third of the total drying time, at this time, the control is triggered, and the redundant time length is the remaining two-thirds, that is, it is necessary to make the absolute humidity value stable within the redundant drying time length, but the control needs to be observed and verified, therefore, after the first control of the hot air system, there will be a control effectiveness verification period, which accounts for half of the redundant drying time length, if the absolute humidity value still cannot be stabilized in the first control effectiveness verification period, secondly control is started, this control mainly adjusts the transportation speed of the material to prolong the remaining redundant drying time length, and the control effectiveness is verified in the second control effectiveness verification period, if it is still ineffective, it means that the abnormal feeding speed at this time cannot be corrected through the preset control process, at this time, the front end is probably abnormal, the feeding end of the horizontal vibration fluidized bed drying equipment needs to be cut off, so that the on-site operator adjusts the feeding speed of the horizontal vibration fluidized bed drying equipment.

[0049] The system does not adjust a single device in isolation, but establishes a hierarchical control mechanism that links the hot air system and the vibration motor based on the core judgment basis of "absolute humidity fluctuation". When the effect of single hot air parameter adjustment does not meet the expectation, the system can automatically start the coordinated adjustment of the vibration frequency, and through slowing down the material advancing speed and other ways, multiple safeguards are provided for quality control. This coordinated control strategy effectively overcomes the limitations of single parameter control, and enhances the ability of the system to respond to complex working conditions and disturbances.

[0050] The above only describes the preferred embodiments of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A chicken seasoning process quality monitoring control system, said system is applicable to a horizontal vibrating fluidized bed, said fluidized bed comprises an elastically supported fluidized bed body, a vibrating motor and a hot air system, characterized in that, The system comprises: A temperature and humidity monitoring module arranged at the air outlet of the hot air system for real-time monitoring of the real-time temperature and real-time relative humidity at the air outlet of the hot air system; A vibration motor control module for controlling the vibration frequency of the vibration motor; A hot air control module for controlling the air intake amount and air intake temperature of the hot air system; A processing quality monitoring module connected to the temperature and humidity monitoring module, vibration motor control module and hot air control module, for receiving the real-time temperature and real-time relative humidity fed back by the temperature and humidity monitoring module in real time, calculating the real-time absolute humidity value based on the real-time temperature and real-time relative humidity, and controlling the processing process parameters of chicken essence based on the fluctuation of the real-time absolute humidity value through the vibration motor control module and the hot air control module, thereby ensuring the processing quality of chicken essence; Secondly, based on the fluctuation of the real-time absolute humidity value, the processing process parameters of chicken essence are controlled through the vibration motor control module and the hot air control module, thereby ensuring the processing quality of chicken essence, including: In the case that the real-time absolute humidity value exceeds the first humidity threshold, a first slope is constructed based on the historical absolute humidity value fluctuation curve, and a second humidity threshold is calculated based on the first slope, which is the humidity peak value predicted based on the first slope; The difference between the second humidity threshold and the first humidity threshold is used to retrieve the hot air system control parameter in the running parameter table, and the hot air system control parameter is sent to the hot air control module to adjust the air intake amount and air intake temperature of the hot air system; After adjustment, the effectiveness of the control is continuously observed, and in the case that the control effect is not good, the vibration frequency of the vibration motor is adjusted through the vibration motor control module, thereby ensuring the processing quality of chicken essence; Secondly, the second humidity threshold is calculated based on the first slope, including: The second humidity threshold is calculated based on the current absolute humidity value, the first slope and the redundant drying time, wherein the redundant drying time is 60% to 80% of the total drying time.

2. The chicken finishing quality monitoring control system according to claim 1, wherein, After adjustment, the effectiveness of the control is continuously observed, and in the case that the control effect is not good, the vibration frequency of the vibration motor is adjusted through the vibration motor control module, thereby ensuring the processing quality of chicken essence, including: The temperature and humidity at the air outlet fed back by the temperature and humidity monitoring module are used to monitor the absolute humidity value after control in real time, and if the absolute humidity value after control is still not stable or shows a downward trend within the control effectiveness verification period, the corresponding vibration motor working frequency adjustment parameter is retrieved in the running parameter table based on the absolute humidity value fluctuation value within the control effectiveness verification period, and the working frequency adjustment parameter is sent to the vibration motor control module, thereby reducing the working frequency of the vibration motor and slowing down the forward speed of chicken essence particles on the fluidized bed.

3. The chicken finishing quality monitoring control system according to claim 2, wherein, After reducing the working frequency of the vibration motor and slowing down the forward speed of chicken essence particles on the fluidized bed, it further includes: The total drying time is calibrated based on the adjusted working frequency of the vibration motor, and the length of the second calibration of the regulation effectiveness verification period is calibrated based on the regulated total drying time, and the absolute humidity value in the second calibration of the regulation effectiveness verification period is continuously monitored to determine whether the absolute humidity value tends to be stable or shows a downward trend, and if the absolute humidity value still does not tend to be stable or shows a downward trend, an abnormal feeding instruction is sent and the feeding end of the horizontal vibration fluidized bed drying equipment is cut off, so that the operator adjusts the feeding speed of the horizontal vibration fluidized bed.

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