CN115993806A - Supervision control system and method based on yarn spinning - Google Patents
Supervision control system and method based on yarn spinning Download PDFInfo
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Abstract
The invention discloses a supervision and control system and method based on yarn spinning, comprising a data acquisition module, a data processing module, temperature and humidity control equipment and a data storage module; the data acquisition module collects weight, humidity and temperature information through various data acquisition devices and transmits the information to the data processing module; the data processing module analyzes and calculates the collected weight information, judges whether adjustment control can be performed, if yes, substitutes all data into a temperature and humidity adjustment model for analog calculation, obtains temperature or humidity adjustment information, and sends the adjustment information to temperature and humidity control equipment in a command form; the temperature and humidity control equipment refers to temperature and humidity control equipment in a production workshop, and the equipment can automatically adjust the working state of the equipment according to received instruction information; the data storage module automatically records the collected information and the adjustment information, stores the collected information and the adjustment information into a database and provides data tracing.
Description
Technical Field
The invention relates to the field of textile production, in particular to a supervision and control system and method based on yarn spinning.
Background
In the yarn spinning production process, the phenomenon of flying and flocculation is most easily generated due to the characteristics of yarn raw materials. When the situation is serious, the production workshop flies all the day long, and workers, machines and the ground are covered with a layer of floccule thick, so that cotton fibers are fully adhered. The environment is polluted, and meanwhile, health hidden trouble is brought to the respiratory system of workers. If the fly leaves fly all the day and are not treated, once the fly leaves fall on the bearing of the machine, the oil eyes are blocked, and the oil-deficient heating surface of the bearing is ignited. The fly-over falls on the heating pipe and the radiator, and can be baked, carbonized and fired for a long time. The flying flowers fall on the electric equipment or the lighting lamp, and the electric spark generated by poor contact, the abnormal temperature rise of the lamp during the overload operation of the motor and the high temperature of the lamp are all dangerous to cause combustion and spread to disaster. In addition, the fly is free of holes, and when the fly drills into the machine, the fly can be accumulated in gaps of various parts, and if the fly is not cleaned frequently, the fly can be heated by friction to cause ignition. Therefore, the fly can be controlled and cleaned, the product quality can be improved, a safe production environment is provided for workers, and the fly cleaning device is an important measure for eliminating the hidden danger of production. In the actual production process, the real-time monitoring and the rapid intervention control of the flying and wadding phenomenon of a production workshop become very important.
At present, the control of the flying and flying flocculation phenomenon in a textile workshop is generally controlled by manually operating humidifying equipment, the control effect is poor, production is blocked due to overlarge increase of humidity easily, or the flying and flocculation phenomenon cannot be pressed due to insufficient increase of humidity, the cost of textile production is increased, and the production process is easily interfered, so that the method for accurately controlling the flying and flying flocculation phenomenon in the production workshop and not interfering with the normal production and processing process is needed at present to solve the problems.
Disclosure of Invention
The invention aims to provide a supervision and control system and method based on yarn spinning so as to solve the problems in the background technology.
In order to solve the technical problems, the invention provides the following technical scheme: a supervisory control system based on yarn spinning comprises a data acquisition module, a data processing module, temperature and humidity control equipment and a data storage module;
the data acquisition module is used for collecting the weight, humidity and temperature information of the production workshop and transmitting the information to the data processing module; the data processing module analyzes and judges the collected data, judges whether the weight data is in an adjustment interval, substitutes all the data into a temperature and humidity adjustment model in the interval for analog calculation, calculates adjustment information of temperature or humidity to be changed, and automatically sends the adjustment information to temperature and humidity control equipment in an instruction form; the temperature and humidity control equipment is temperature and humidity control equipment in a production workshop, and the equipment automatically adjusts the working state of the equipment according to the received instruction information so as to achieve instruction response of the data processing module; the data storage module automatically records the collected information and the adjustment information each time and stores the information and the adjustment information into the database to provide data tracing for management personnel.
Through the technical scheme, firstly, the system automatically collects information, judges whether the collected information is in an adjustable range or not, and if so, substitutes all data into a model for analog calculation to obtain adjustment information; secondly, the system automatically converts the adjustment information into instruction information and sends the instruction information to corresponding equipment, and the corresponding equipment adjusts the working state of the equipment according to the instruction information; and finally, storing and backing up all the information, and providing a traceability function for an administrator.
The data acquisition module comprises a weight acquisition unit, a humidity acquisition unit and a temperature acquisition unit;
the weight acquisition unit collects weight information of yarns through a weighing sensor arranged at an inlet and an outlet of yarn processing equipment, the weighing sensor at an inlet of the yarn processing equipment collects weight information of the yarns before processing, and the weighing sensor at an outlet of the yarn processing equipment collects weight information of the yarns after processing. The humidity acquisition unit is used for collecting relative humidity information in the production workshop through a humidity sensor arranged in the production workshop. The temperature acquisition unit collects temperature information through temperature sensors arranged inside and outside the production workshop, the temperature sensor arranged inside the production workshop collects temperature information inside the production workshop, and the temperature sensor arranged outside the production workshop collects temperature information outside the production workshop. Storing the information of different types and the time information when being collected in a data set in a key value pair mode, and taking care that:
Due to the processing characteristics of the yarns, the weighing device can select a sectional weighing method, namely weighing once each bundle of yarns is processed, or weighing once every fixed time. The weighing device can finish weighing at high speed and high precision, namely, the weighing with the error of not more than 1-2g is finished in a second level unit.
Through the technical scheme, information required by prediction can be collected through various sensor devices, and data support is provided for a subsequent data analysis module.
The data processing unit comprises a weight loss judging unit and a temperature and humidity calculating unit;
the weight loss unit is used for carrying out difference value operation on weight information of the yarns at the inlet and the outlet, the operation result is weight loss degree, whether the weight loss degree is in an error interval allowed by the same processing stage and the same quality yarns stored in the system is judged, the result is in the error interval, and the system does not process. The result is in the abnormal interval, and the system automatically sends out an alarm to remind the staff. And the result is in the adjustment interval, and the system automatically transmits the weight, temperature and humidity information transmitted by the data acquisition module to the temperature and humidity calculation unit. It should be noted that:
The error interval refers to a closed interval of the allowable weight loss variation amplitude in the normal production and processing process, and the error interval can be respectively different according to different processing stages, different yarn varieties or different yarn water contents. The boundary value of the error interval can be negative or positive, or both, the weight loss degree of the same yarn in the same processing stage in the normal spinning process is taken as the median in the determination of the interval range, the normal processing can not be influenced, the maximum positive and negative deviation of the quality can be ensured is taken as the boundary value, and the corresponding error interval is determined.
The adjustment section is a half-open section having an error section boundary value as a starting point and a maximum value adjustable by humidity or temperature as an end point. When the weight loss degree is in the adjusting section, the two sections are the adjusting section, which indicates that the flying and catkin phenomenon is serious or the yarn moisture regain is too high, but the two sections can be adjusted back through adjusting the humidity or the temperature.
The abnormal section is an open section having an end point of the adjustment section as a start point and a positive infinity or a negative infinity as an end point. When the weight loss degree is in the abnormal section, the weight loss degree is not only influenced by temperature or humidity, but is more likely to be abnormal due to machine faults, yarn winding and other reasons, and in this case, the temperature and humidity adjustment cannot be changed, so that staff needs to be reminded of solving the problem.
The temperature and humidity calculation unit substitutes weight, temperature and humidity information into a temperature and humidity adjustment model to carry out simulation calculation, calculates humidity adjustment information, and preferentially judges whether the problem can be solved from the temperature direction according to the humidity adjustment information by taking the power of equipment as a principle, if the problem cannot be solved from the humidity adjustment direction, substitutes a formula to dynamically calculate a temperature or humidity adjustment value, and sends the information to the temperature and humidity control equipment in an instruction set mode. Wherein:
the principle of minimizing the power of the device is to control the relative humidity with the air conditioning device when the following two conditions occur: a. under the conditions of outdoor low temperature, indoor high temperature and heating of air conditioning equipment, in a certain temperature interval, the temperature is in a direct proportion relation with power, the temperature is in a direct proportion relation with saturated water vapor pressure, under a relatively closed environment, the lower the saturated water vapor pressure value is, the higher the relative humidity is, when the adjustment information of the humidity is positive, the air conditioning temperature is adjusted to be corresponding to the temperature under the condition that the relative humidity needs to be increased, the power can be reduced, and the problem of low humidity can be solved; b. under the conditions of outdoor high temperature, indoor low temperature and air conditioning equipment refrigeration, in a certain temperature interval, the temperature is in inverse proportion to the power, the temperature is in direct proportion to the saturated water vapor pressure, under the relative closed environment, the higher the saturated water vapor pressure value is, the lower the relative humidity is, when the humidity adjustment information is negative, the air conditioning temperature is adjusted to be corresponding to the temperature under the condition that the relative humidity needs to be reduced, the power can be reduced, and the problem of overhigh humidity can be solved.
Because the temperature requirements of each processing stage are different in strictness, in the actual adjusting process, the temperature is often adjusted according to the workshop environment requirements of the specific processing stage, the temperature is adjustable, the temperature is adjusted appropriately, the temperature is not adjustable or the adjusting space is relatively insufficient, and the corresponding humidity control equipment or the combined application of the air conditioner and the humidity control equipment is adjusted appropriately.
When the temperature adjustable range is insufficient to solve the problem of humidity adjustment, the air conditioner and the humidity control device are required to be used in combination. The temperature of the air conditioner is adjusted to a limit value of a variable amplitude, after the air conditioner is operated for a period of time, the relative humidity is stabilized, the corresponding dehumidifying equipment or humidifying equipment begins to operate again, and the relative humidity information is supplemented to a value to be adjusted.
Through the technical scheme, the judgment of the degree of weight loss can be realized, so that the adjustment of humidity can be realized through air conditioning equipment or humidity control equipment.
The temperature and humidity control equipment comprises air conditioning equipment, dehumidifying equipment and humidifying equipment, the air conditioning equipment, the dehumidifying equipment and the humidifying equipment are arranged inside a production workshop, the temperature and the humidity inside the production workshop can be controlled in real time, and when an instruction transmitted by the data processing module is received, the working state of the temperature and humidity control equipment can be automatically adjusted according to the received specific instruction information.
Through the technical scheme, the corresponding equipment receives the corresponding instruction information and automatically adjusts the working state of the equipment to respond, so that the simulation calculation result of the data processing module is realized.
The data storage module comprises a storage unit, the storage unit records weight, temperature and humidity information in the data acquisition module and temperature or humidity adjustment information calculated in the data processing module, and the collected information and the adjustment information are stored in a database to provide data tracing for subsequent operation.
Through the technical scheme, the automatic backup function of the system is realized, and the information is stored into the MySQL database for backup, so that data support is provided for the subsequent traceability work.
A supervisory control method based on yarn spinning, the supervisory control method comprising the steps of:
s1, collecting relevant data of a production workshop;
s2, judging whether the corresponding data is in an adjustment interval or not;
s3, substituting the related data into the model to calculate adjustment information when the data is in the adjustment interval;
s4, the adjustment information is responded to the corresponding equipment in the form of instructions;
s5, the corresponding equipment automatically adjusts the working state of the corresponding equipment according to the instruction information;
s6, storing the collected information and the adjustment information into a database.
In S1, the data includes weight information before and after yarn processing, temperature information inside and outside the production workshop, and humidity information inside the production workshop, and the corresponding data acquisition device is used to collect the above information in real time, so as to provide data support for subsequent data judgment and calculation.
Through the technical scheme, the required information can be collected in various modes, and data support is provided for the subsequent data processing module.
In S2 and S3, the temperature and humidity adjustment model is used to determine and calculate the data, including the following steps:
first, the weight before yarn processing and the weight after yarn processing are subjected to a difference operation, and the result of the operation is the weight loss degree. Secondly, judging whether the weight loss degree is in an error interval allowed by the same processing stage and the same quality yarn stored in the system, wherein the result is in the error interval and is not processed under normal conditions; in the abnormal interval, automatically sending out an alarm to remind workers; is within the adjustment interval. Finally, the next step is entered. Wherein the weight difference calculation formula is as follows:
t in C Degree of weight loss, T i T is the weight of the yarn before processing o Is the weight of the yarn after processing;
s301, when the weight loss is within the adjustment interval, the following two cases are generally adopted: 1. the weight loss degree is lower than the error interval and even is negative, and in this case, the weight of the yarn after processing is larger than the weight of the yarn after processing under normal conditions, and even the weight of the yarn after processing exceeds the weight before processing, and at the moment, the water content of the yarn is larger than the normal value, and the humidity of a production workshop is too high. 2. The weight loss degree is higher than the error interval, and under the condition that the weight of the yarn after processing is smaller than the weight of the yarn after processing under normal conditions, the water content of the yarn is lower than a normal value, the phenomena of flying and flocculating are obvious, and the humidity of a production workshop is too low. For both cases, it is necessary to adjust the humidity value so that the weight loss degree reaches a normal value. Substituting the weight loss degree and the standard weight loss degree of the yarns with the same quality in a formula, and calculating to obtain the humidity adjustment value. The formula is as follows:
h in t For humidity adjustment value, T i T is the weight of the yarn before processing C The weight loss degree is C, the standard weight loss degree is C, h is the water vapor pressure coefficient, and E is the standard saturated water vapor pressure; when the humidity adjustment value is positive, the humidity value is too low, and the up-regulation is needed; when the humidity value is negative, the humidity value is too high, and the humidity value needs to be adjusted downwards;
S302, dynamically controlling the coordinated operation of the air conditioner, the humidifying equipment and the dehumidifying equipment according to the principle of minimizing the power of the equipment. In only two cases, the air conditioning device will make corresponding adjustments: 1. in winter, the air conditioner heats, the low temperature outside the production workshop, the high temperature inside the production workshop, the set temperature of the air conditioner is reduced, the power consumption is reduced, the saturated water vapor pressure value is reduced, and the relative humidity inside the production workshop is improved. 2 in summer, the air conditioner is used for refrigerating, the temperature outside the production workshop is high, the temperature inside the production workshop is low, the set temperature of the air conditioner is improved under the condition that the relative humidity needs to be reduced, the power of the air conditioner is reduced, the saturated water vapor pressure value is increased while the power consumption is reduced, and the relative humidity inside the production workshop is reduced. Judging whether the temperature value is the two conditions, and calculating the temperature value to be adjusted according to a formula from the actual temperature and the relative humidity in the workshop, wherein the calculation steps are as follows:
s3021, calculating saturated water vapor pressure at the temperature according to actual temperature information, wherein the formula is as follows:
in the formula e s E is the saturated water vapor pressure at the current temperature 0 Saturated water vapor pressure at 0 degrees is 6.112, x is a temperature influence coefficient, and W is the actual temperature, and the value is 17.67;
S3022, calculating saturated water vapor pressure at the temperature through the formula, substituting relative humidity into the operation to obtain actual water vapor pressure, wherein the calculation formula is as follows:
e＝e s ×RH
wherein e is the actual water vapor pressure, e s Saturated water vapor pressure, RH is relative humidity;
and S3023, adding the current relative humidity and the humidity adjustment value to obtain the adjusted relative humidity, and dividing the actual water vapor pressure by the adjusted relative humidity to obtain the adjusted saturated water vapor pressure. The calculation formula is as follows:
in the formula e t For the adjusted saturated water vapor pressure, e is the actual water vapor pressure, RH is the relative humidity, H t Is a humidity adjustment value;
s3024, substituting the specific value of the adjusted saturated water vapor pressure into the saturated water vapor pressure calculation formula to obtain an adjusted temperature value, wherein the difference value between the adjusted temperature value and the actual temperature is the adjusted temperature value. The calculation formula is as follows:
W t ＝Ws-W
in which W is t Ws is the temperature value after the adjustment,w is the actual temperature value;
s303, when the temperature is limited and can be changed only slightly, except for the two cases: the temperature is adjusted to the limit value of the variable amplitude, after the air conditioning equipment is operated for a period of time, the relative humidity is stabilized, the corresponding dehumidifying equipment or humidifying equipment begins to operate again, and the relative humidity information is supplemented to the value to be adjusted. In the case where the temperature value cannot or does not need to be changed: when the humidity adjustment value is positive, the humidifying equipment is operated when the relative humidity needs to be increased. When the humidity adjustment value is negative, the relative humidity needs to be reduced, and then the dehumidifying equipment operates. The calculation formula of humidity parameters required to be set for the operation of the equipment is as follows:
H c ＝RH+H t
H in c Setting humidity parameters for equipment, wherein RH is relative humidity, and H t Is the humidity adjustment value.
Through the technical scheme, the real-time analysis and judgment of the weight loss degree of the yarn are realized, whether the yarn needs to be regulated or not is judged, and regulation information corresponding to the temperature or the humidity is calculated through the temperature and humidity regulation model.
In S4 and S5, the adjustment information includes one or more of temperature adjustment information and humidity adjustment information, and when the temperature adjustment value or the humidity adjustment value is not zero, the corresponding adjustment information is automatically edited into instruction information that can be recognized by the machine, and is sent to the corresponding temperature adjustment device or humidity adjustment device. The equipment comprises air conditioning equipment, humidifying equipment and dehumidifying equipment, and after the equipment receives corresponding instruction information, the equipment can automatically adjust the working state of the equipment according to the instruction information and respond to the instruction.
Through the technical scheme, the corresponding equipment receives the corresponding instruction information and automatically adjusts the working state of the equipment to respond, so that the intervention adjustment of the humidity is completed.
In S6, the collected information includes pre-yarn processing weight information and post-yarn processing weight information, interior and exterior temperature information of the production plant, and interior humidity information of the production plant. The adjustment information comprises one or more of temperature adjustment information and humidity adjustment information, and the temperature adjustment information and the humidity adjustment information are stored in a MySQL database to provide data tracing for management staff.
By the technical scheme, backup storage of collected information and adjustment information is realized, and the follow-up traceability work is convenient to develop.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, whether the flying and flocculation phenomenon is serious is judged by the weight difference before and after yarn processing, different error intervals are set according to different processing stages or different yarn qualities, and the rapid detection of the yarn weight is realized by adopting a high-precision weighing sensor, so that the occurrence degree of the flying and flocculation phenomenon is flexibly and skillfully detected.
2. The invention keeps the humidity in the workshop to float up and down in a stable region through flexible control of the humidity, thereby not only preventing the phenomenon of flying to the serious of flying to the wadding due to the low humidity, but also ensuring that the yarn moisture regain is high and the machine rusts due to the overlarge humidity.
3. The temperature is controlled by the air conditioning equipment preferentially, so that the control of the internal relative humidity of the production workshop is realized, the relative humidity of the air is always higher in summer, the air conditioner is in a refrigerating state, and the temperature is adjusted upwards within an allowable range, so that the power of the air conditioner can be reduced, and the relative humidity of the air can be effectively reduced; in winter, the relative humidity of air is often lower, the air conditioner is in a heating state, and the temperature is downwards regulated within an allowable range, so that the power of the air conditioner can be reduced, and the relative humidity of the air can be effectively improved; not only can the aim of humidity adjustment be achieved, but also the power of equipment can be effectively reduced, and the method has certain economic feasibility.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:
FIG. 1 is a schematic diagram of a yarn spinning-based supervisory control system and method according to the present invention;
fig. 2 is a schematic flow chart of a supervisory control system and method based on yarn spinning according to the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1, the present invention provides the following technical solutions: a supervisory control system based on yarn spinning comprises a data acquisition module, a data processing module, temperature and humidity control equipment and a data storage module;
the data acquisition module is used for collecting the weight, humidity and temperature information of the production workshop and transmitting the information to the data processing module; the data processing module analyzes and judges the collected data, judges whether the weight data is in an adjustment interval, substitutes all the data into a temperature and humidity adjustment model in the interval for analog calculation, calculates adjustment information of temperature or humidity to be changed, and automatically sends the adjustment information to temperature and humidity control equipment in an instruction form; the temperature and humidity control equipment refers to temperature and humidity control equipment in a production workshop, and the equipment automatically adjusts the working state of the equipment according to the received instruction information so as to achieve the instruction response of the data processing module; the data storage module automatically records the collected information and the adjustment information each time and stores the information and the adjustment information into the database to provide data tracing for management personnel.
Through the technical scheme, firstly, the system automatically collects information, judges whether the collected information is in an adjustable range or not, and if so, substitutes all data into a model for analog calculation to obtain adjustment information; secondly, the system automatically converts the adjustment information into instruction information and sends the instruction information to corresponding equipment, and the corresponding equipment adjusts the working state of the equipment according to the instruction information; and finally, storing and backing up all the information, and providing a traceability function for an administrator.
The data acquisition module comprises a weight acquisition unit, a humidity acquisition unit and a temperature acquisition unit;
the weight acquisition unit is used for collecting weight information of the yarns through a weighing sensor arranged at an inlet and an outlet of the yarn processing equipment, the weighing sensor at the inlet of the yarn processing equipment is used for collecting weight information of the yarns before processing, and the weighing sensor at the outlet of the yarn processing equipment is used for collecting weight information of the yarns after processing. The humidity acquisition unit is used for collecting relative humidity information in the production workshop through a humidity sensor arranged in the production workshop. The temperature acquisition unit collects temperature information through temperature sensors arranged inside and outside the production workshop, the temperature sensor arranged inside the production workshop collects temperature information inside the production workshop, and the temperature sensor arranged outside the production workshop collects temperature information outside the production workshop. Storing the information of different types and the time information when being collected in a data set in a key value pair mode, and taking care that:
Due to the processing characteristics of the yarns, the weighing device can select a sectional weighing method, namely weighing once each bundle of yarns is processed, or weighing once every fixed time. The weighing device requires high speed and high accuracy for weighing, i.e. weighing with an error of not more than 1-2g is done in seconds.
Through the technical scheme, information required by prediction can be collected through various sensor devices, and data support is provided for a subsequent data analysis module.
The data processing unit comprises a weight loss judging unit and a temperature and humidity calculating unit;
the weight loss unit is used for carrying out difference value operation on the weight information of the yarns at the inlet and the outlet, the operation result is the weight loss degree, whether the weight loss degree is in an error interval allowed by the same processing stage and the same quality yarns stored in the system is judged, the result is in the error interval, and the system does not process. The result is in the abnormal interval, and the system automatically sends out an alarm to remind the staff. And the result is in the adjustment interval, and the system automatically transmits the weight, temperature and humidity information transmitted by the data acquisition module to the temperature and humidity calculation unit. It should be noted that:
The error interval refers to a closed interval of the allowable weight loss variation amplitude in the normal production and processing process, and the error interval can be respectively different according to different processing stages, different yarn varieties or different yarn water contents. The boundary value of the error interval can be negative or positive, or both, the weight loss degree of the same yarn in the same processing stage in the normal spinning process is taken as the median, the normal processing can not be influenced, the maximum positive and negative deviation which can be ensured by the quality is taken as the boundary value, and the corresponding error interval is determined.
The adjustment section is a half-open section having an error section boundary value as a starting point and a maximum value adjustable by humidity or temperature as an end point. When the weight loss degree is in the adjusting section, the two sections are the adjusting section, which indicates that the flying and catkin phenomenon is serious or the yarn moisture regain is too high, but the two sections can be adjusted back through adjusting the humidity or the temperature.
The abnormal section is an open section having an end point of the adjustment section as a start point and a positive infinity or a negative infinity as an end point. When the weight loss degree is in the abnormal section, the weight loss degree is not only influenced by temperature or humidity, but is more likely to be abnormal due to machine faults, yarn winding and other reasons, and in this case, the temperature and humidity adjustment cannot be changed, so that staff needs to be reminded of solving the problem.
The temperature and humidity calculation unit substitutes weight, temperature and humidity information into a temperature and humidity adjustment model to carry out simulation calculation, calculates humidity adjustment information, and according to the humidity adjustment information, based on the principle of minimizing equipment power, preferentially judges whether the problem can be solved from the temperature direction, if the problem cannot be solved from the humidity adjustment direction, substitutes a formula to dynamically calculate a temperature or humidity adjustment value, and sends the information to the temperature and humidity control equipment in an instruction set mode. Wherein:
the principle of minimizing the power of the device is to control the relative humidity with the air conditioning device when the following two conditions occur: a. under the conditions of outdoor low temperature, indoor high temperature and heating of air conditioning equipment, in a certain temperature interval, the temperature is in a direct proportion relation with power, the temperature is in a direct proportion relation with saturated water vapor pressure, under a relatively closed environment, the lower the saturated water vapor pressure value is, the higher the relative humidity is, when the adjustment information of the humidity is positive, the air conditioning temperature is adjusted to be corresponding to the temperature under the condition that the relative humidity needs to be increased, the power can be reduced, and the problem of low humidity can be solved; b. under the conditions of outdoor high temperature, indoor low temperature and air conditioning equipment refrigeration, in a certain temperature interval, the temperature is in inverse proportion to the power, the temperature is in direct proportion to the saturated water vapor pressure, under the relative closed environment, the higher the saturated water vapor pressure value is, the lower the relative humidity is, when the humidity adjustment information is negative, the air conditioning temperature is adjusted to be corresponding to the temperature under the condition that the relative humidity needs to be reduced, the power can be reduced, and the problem of overhigh humidity can be solved.
Because the temperature requirements of each processing stage are different in strictness, in the actual adjusting process, the temperature is often adjusted according to the workshop environment requirements of the specific processing stage, the temperature is adjustable, the temperature is adjusted appropriately, the temperature is not adjustable or the adjusting space is relatively insufficient, and the corresponding humidity control equipment or the combined application of the air conditioner and the humidity control equipment is adjusted appropriately.
When the temperature adjustable range is insufficient to solve the problem of humidity adjustment, the air conditioner and the humidity control device are required to be used in combination. The temperature of the air conditioner is adjusted to a limit value of a variable amplitude, after the air conditioner is operated for a period of time, the relative humidity is stabilized, the corresponding dehumidifying equipment or humidifying equipment begins to operate again, and the relative humidity information is supplemented to a value to be adjusted.
Through the technical scheme, the judgment of the degree of weight loss can be realized, so that the adjustment of humidity can be realized through air conditioning equipment or humidity control equipment.
The temperature and humidity control equipment comprises air conditioning equipment, dehumidifying equipment and humidifying equipment, the equipment is arranged inside a production workshop and can control the temperature and the humidity inside the production workshop in real time, and when an instruction transmitted by the data processing module is received, the working state of the equipment can be automatically adjusted according to the received specific instruction information.
Through the technical scheme, the corresponding equipment receives the corresponding instruction information and automatically adjusts the working state of the equipment to respond, so that the simulation calculation result of the data processing module is realized.
The data storage module comprises a storage unit, the storage unit records weight, temperature and humidity information in the data acquisition module and temperature or humidity adjustment information calculated in the data processing module, and the collected information and the adjustment information are stored in a database to provide data tracing for subsequent operation.
Through the technical scheme, the automatic backup function of the system is realized, and the information is stored into the MySQL database for backup, so that data support is provided for the subsequent traceability work.
Referring to fig. 2, the present invention provides a yarn spinning-based supervisory control method, which includes the following steps:
s1, collecting relevant data of a production workshop;
s2, judging whether the corresponding data is in an adjustment interval or not;
s3, substituting the related data into the model to calculate adjustment information when the data is in the adjustment interval;
s4, the adjustment information is responded to the corresponding equipment in the form of instructions;
s5, the corresponding equipment automatically adjusts the working state of the corresponding equipment according to the instruction information;
S6, storing the collected information and the adjustment information into a database.
In S1, the data comprise weight information before and after yarn processing, temperature information inside and outside a production workshop and humidity information inside the production workshop, and the corresponding data acquisition device is adopted to collect the information in real time so as to provide data support for subsequent data judgment and calculation.
Through the technical scheme, the required information can be collected in various modes, and data support is provided for the subsequent data processing module.
In S2 and S3, the temperature and humidity adjustment model is used to determine and calculate the data, including the following steps:
first, the weight before yarn processing and the weight after yarn processing are subjected to a difference operation, and the result of the operation is the weight loss degree. Secondly, judging whether the weight loss degree is in an error interval allowed by the same processing stage and the same quality yarn stored in the system, wherein the result is in the error interval and is not processed under normal conditions; in the abnormal interval, automatically sending out an alarm to remind workers; is within the adjustment interval. Finally, the next step is entered. Wherein the weight difference calculation formula is as follows:
t in C Degree of weight loss, T i T is the weight of the yarn before processing o Is the weight of the yarn after processing;
s301, when the weight loss is within the adjustment interval, the following two cases are generally adopted: 1. the weight loss degree is lower than the error interval and even is negative, and in this case, the weight of the yarn after processing is larger than the weight of the yarn after processing under normal conditions, and even the weight of the yarn after processing exceeds the weight before processing, and at the moment, the water content of the yarn is larger than the normal value, and the humidity of a production workshop is too high. 2. The weight loss degree is higher than the error interval, and under the condition that the weight of the yarn after processing is smaller than the weight of the yarn after processing under normal conditions, the water content of the yarn is lower than a normal value, the phenomena of flying and flocculating are obvious, and the humidity of a production workshop is too low. For both cases, it is necessary to adjust the humidity value so that the weight loss degree reaches a normal value. Substituting the weight loss degree and the standard weight loss degree of the yarns with the same quality in a formula, and calculating to obtain the humidity adjustment value. The formula is as follows:
h in t For humidity adjustment value, T i T is the weight of the yarn before processing C The weight loss degree is C, the standard weight loss degree is C, h is the water vapor pressure coefficient, and E is the standard saturated water vapor pressure; when the humidity adjustment value is positive, the humidity value is too low, and the up-regulation is needed; when the humidity value is negative, the humidity value is too high, and the humidity value needs to be adjusted downwards;
S302, dynamically controlling the coordinated operation of the air conditioner, the humidifying equipment and the dehumidifying equipment according to the principle of minimizing the power of the equipment. In only two cases, the air conditioning device will make corresponding adjustments: 1. in winter, the air conditioner heats, the low temperature outside the production workshop, the high temperature inside the production workshop, the set temperature of the air conditioner is reduced, the power consumption is reduced, the saturated water vapor pressure value is reduced, and the relative humidity inside the production workshop is improved. 2 in summer, the air conditioner is used for refrigerating, the temperature outside the production workshop is high, the temperature inside the production workshop is low, the set temperature of the air conditioner is improved under the condition that the relative humidity needs to be reduced, the power of the air conditioner is reduced, the saturated water vapor pressure value is increased while the power consumption is reduced, and the relative humidity inside the production workshop is reduced. Judging whether the temperature value is the two conditions, and calculating the temperature value to be adjusted according to a formula from the actual temperature and the relative humidity in the workshop, wherein the calculation steps are as follows:
s3021, calculating saturated water vapor pressure at the temperature according to actual temperature information, wherein the formula is as follows:
in the formula e s E is the saturated water vapor pressure at the current temperature 0 Saturated water vapor pressure at 0 degrees is 6.112, x is a temperature influence coefficient, and W is the actual temperature, and the value is 17.67;
S3022, calculating saturated water vapor pressure at the temperature through the formula, substituting relative humidity into the operation to obtain actual water vapor pressure, wherein the calculation formula is as follows:
e＝e s ×RH
wherein e is the actual water vapor pressure, e s Saturated water vapor pressure, RH is relative humidity;
and S3023, adding the current relative humidity and the humidity adjustment value to obtain the adjusted relative humidity, and dividing the actual water vapor pressure by the adjusted relative humidity to obtain the adjusted saturated water vapor pressure. The calculation formula is as follows:
in the formula e t For the adjusted saturated water vapor pressure, e is the actual water vapor pressure, RH is the relative humidity, H t Is a humidity adjustment value;
s3024, substituting the specific value of the adjusted saturated water vapor pressure into the saturated water vapor pressure calculation formula to obtain an adjusted temperature value, wherein the difference value between the adjusted temperature value and the actual temperature is the adjusted temperature value. The calculation formula is as follows:
W t ＝Ws-W
in which W is t Ws is the adjusted temperature value, and W is the actual temperature value;
s303, when the temperature is limited and can be changed only slightly, except for the two cases: the temperature is adjusted to the limit value of the variable amplitude, after the air conditioning equipment is operated for a period of time, the relative humidity is stabilized, the corresponding dehumidifying equipment or humidifying equipment begins to operate again, and the relative humidity information is supplemented to the value to be adjusted. In the case where the temperature value cannot or does not need to be changed: when the humidity adjustment value is positive, the humidifying equipment is operated when the relative humidity needs to be increased. When the humidity adjustment value is negative, the relative humidity needs to be reduced, and then the dehumidifying equipment operates. The calculation formula of humidity parameters required to be set for the operation of the equipment is as follows:
H c ＝RH+H t
H in c Setting humidity parameters for equipment, wherein RH is relative humidity, and H t Is the humidity adjustment value.
Through the technical scheme, the real-time analysis and judgment of the weight loss degree of the yarn are realized, whether the yarn needs to be regulated or not is judged, and regulation information corresponding to the temperature or the humidity is calculated through the temperature and humidity regulation model.
In S4 and S5, the adjustment information includes one or more of temperature adjustment information and humidity adjustment information, and when the temperature adjustment value or the humidity adjustment value is not zero, the corresponding adjustment information is automatically edited into instruction information that can be recognized by the machine, and is sent to the corresponding temperature adjustment device or humidity adjustment device. The equipment comprises air conditioning equipment, humidifying equipment and dehumidifying equipment, and after the equipment receives corresponding instruction information, the equipment can automatically adjust the working state of the equipment according to the instruction information and respond to the instruction.
Through the technical scheme, the corresponding equipment receives the corresponding instruction information and automatically adjusts the working state of the equipment to respond, so that the intervention adjustment of the humidity is completed.
In S6, the collected information includes pre-yarn processing weight information and post-yarn processing weight information, inside and outside temperature information of the production plant, and inside humidity information of the production plant. The adjustment information comprises one or more of temperature adjustment information and humidity adjustment information, and the information is stored in a MySQL database to provide data tracing for management personnel.
By the technical scheme, backup storage of collected information and adjustment information is realized, and the follow-up traceability work is convenient to develop.
Embodiment one:
assuming that the air conditioner heats in winter, the temperature outside the production workshop is 12 degrees, the temperature inside the production workshop is 25 degrees, and the relative humidity is 40 percent under the condition of humidity adjustment value plus 20 percent:
substituting the saturated water vapor pressure value into a formula to calculate and obtain the current saturated water vapor pressure value:
actual water vapor pressure value: e=e s ×RH＝19.65×40％＝7.86
Saturated water vapor pressure after adjustment:
temperature after adjustment:
the temperature was adjusted down to 21.29 deg., and the relative humidity could be raised to 60%.
Embodiment two:
in summer, the air conditioner is used for refrigerating, the temperature outside the production workshop is 39 degrees, the temperature inside the production workshop is 26 degrees, and the relative humidity is 60 percent under the condition that the humidity adjustment value is-20 percent:
substituting the saturated water vapor pressure value into a formula to calculate and obtain the current saturated water vapor pressure value:
actual water vapor pressure value: e=e s ×RH＝21.88×60％＝13.128
Saturated water vapor pressure after adjustment:
temperature after adjustment:
the temperature was adjusted up to 29.83 deg., and the relative humidity could be reduced to 40%.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The supervisory control system based on yarn spinning is characterized by comprising a data acquisition module, a data processing module, temperature and humidity control equipment and a data storage module;
the data acquisition module is used for collecting the weight, humidity and temperature information of the production workshop and transmitting the information to the data processing module; the data processing module analyzes and judges the collected data, judges whether the weight data is in an adjustment interval, substitutes all the data into a temperature and humidity adjustment model in the interval for analog calculation, calculates adjustment information of temperature or humidity to be changed, and automatically sends the adjustment information to temperature and humidity control equipment in an instruction form; the temperature and humidity control equipment is temperature and humidity control equipment in a production workshop, and the equipment automatically adjusts the working state of the equipment according to the received instruction information so as to achieve instruction response of the data processing module; the data storage module automatically records the collected information and the adjustment information each time and stores the information and the adjustment information into the database to provide data tracing for management personnel.
2. A yarn spinning-based supervisory control system as set forth in claim 1 wherein: the data acquisition module comprises a weight acquisition unit, a humidity acquisition unit and a temperature acquisition unit;
the weight acquisition unit is used for collecting weight information of yarns through a weighing sensor arranged at an inlet and an outlet of the yarn processing equipment, the weighing sensor at the inlet of the yarn processing equipment is used for collecting weight information of the yarns before processing, and the weighing sensor at the outlet of the yarn processing equipment is used for collecting weight information of the yarns after processing; the humidity acquisition unit is used for collecting relative humidity information in the production workshop through a humidity sensor arranged in the production workshop; the temperature acquisition unit collects temperature information through temperature sensors arranged inside and outside the production workshop, the temperature sensor arranged inside the production workshop collects temperature information inside the production workshop, and the temperature sensor arranged outside the production workshop collects temperature information outside the production workshop.
3. A yarn spinning-based supervisory control system as set forth in claim 1 wherein: the data processing unit comprises a weight loss judging unit and a temperature and humidity calculating unit;
The weight loss unit is used for carrying out difference value operation on weight information of the yarns at the inlet and the outlet, the operation result is weight loss degree, whether the weight loss degree is in an error interval allowed by the same processing stage and the same quality yarns stored in the system is judged, the result is in the error interval, and the system does not process; the result is in an abnormal interval, and the system automatically gives an alarm to remind the staff; the result is in the adjustment interval, and the system automatically transmits the weight, temperature and humidity information transmitted by the data acquisition module to the temperature and humidity calculation unit; the temperature and humidity calculation unit substitutes weight, temperature and humidity information into a temperature and humidity adjustment model to carry out simulation calculation, calculates humidity adjustment information, calculates temperature or humidity adjustment values according to the humidity adjustment information and with the principle of minimizing equipment power, and sends the information to the temperature and humidity control equipment in an instruction set mode.
4. A yarn spinning-based supervisory control system as set forth in claim 1 wherein: the temperature and humidity control equipment comprises air conditioning equipment, dehumidifying equipment and humidifying equipment, the air conditioning equipment, the dehumidifying equipment and the humidifying equipment are arranged inside a production workshop, the temperature and the humidity inside the production workshop can be controlled in real time, and when an instruction transmitted by the data processing module is received, the working state of the temperature and humidity control equipment can be automatically adjusted according to the received specific instruction information.
5. A yarn spinning-based supervisory control system as set forth in claim 1 wherein: the data storage module comprises a storage unit, the storage unit records weight, temperature and humidity information in the data acquisition module and temperature or humidity adjustment information calculated in the data processing module, and the collected information and the adjustment information are stored in a database to provide data tracing for subsequent operation.
6. A supervisory control method based on yarn spinning, characterized in that the supervisory control method comprises the following steps:
s1, collecting relevant data of a production workshop;
s2, judging whether the corresponding data is in an adjustment interval or not;
s3, substituting the related data into the model to calculate adjustment information when the data is in the adjustment interval;
s4, the adjustment information is responded to the corresponding equipment in the form of instructions;
s5, the corresponding equipment automatically adjusts the working state of the corresponding equipment according to the instruction information;
s6, storing the collected information and the adjustment information into a database.
7. The method of supervisory control over yarn spinning according to claim 6, wherein: in S1, the data includes weight information before and after yarn processing, temperature information inside and outside the production workshop, and humidity information inside the production workshop, and the above information is collected in real time by using a corresponding weighing sensor, temperature sensor, and humidity sensor.
8. The method of supervisory control over yarn spinning according to claim 6, wherein: in S2 and S3, the temperature and humidity adjustment model is used to determine and calculate the data, including the following steps:
firstly, carrying out difference value operation on the weight before yarn processing and the weight after yarn processing, and calculating the weight loss degree according to the operation result; secondly, judging whether the weight loss degree is in an error interval allowed by the same processing stage and the same quality yarn stored in the system, wherein the result is in the error interval and is not processed under normal conditions; in the abnormal interval, automatically sending out an alarm to remind workers; in the adjustment interval, finally, entering the next step; wherein the weight difference calculation formula is as follows:
t in C Degree of weight loss, T i T is the weight of the yarn before processing o Is the weight of the yarn after processing;
s301, when the weight loss is within the adjustment interval, the following two cases are generally adopted: 1. the weight loss degree is lower than the error interval and even is a negative number, in the case, the weight of the yarn after processing is larger than the weight of the yarn after processing under normal conditions, even the weight of the yarn after processing exceeds the weight before processing, at the moment, the water content of the yarn is larger than the normal value, and the humidity of a production workshop is too high; 2. the weight loss degree is higher than the error interval, in this case, the weight of the yarn after processing is smaller than the weight of the yarn after processing under normal conditions, the water content of the yarn is lower than the normal value, the phenomena of flying and flocculating are obvious, and the humidity of a production workshop is too low; aiming at the two conditions, the humidity value needs to be adjusted to enable the weight loss degree to reach a normal value, the weight loss degree and the standard weight loss degree of the yarns with the same quality and the corresponding processing stage are substituted into a formula, and the humidity adjustment value is obtained through calculation; the formula is as follows:
H in t For humidity adjustment value, T i T is the weight of the yarn before processing C The weight loss degree is C, the standard weight loss degree is C, h is the water vapor pressure coefficient, E is the standardQuasi-saturated water vapor pressure; when the humidity adjustment value is positive, the humidity value is too low, and the up-regulation is needed; when the humidity value is negative, the humidity value is too high, and the humidity value needs to be adjusted downwards;
s302, dynamically controlling the coordinated operation of the air conditioner, the humidifying equipment and the dehumidifying equipment according to the principle of minimizing the equipment power, wherein the air conditioner makes corresponding adjustment under two conditions: 1. in winter, the air conditioner heats, the temperature outside the production workshop is low, the temperature inside the production workshop is high, the set temperature of the air conditioner is reduced, the power consumption is reduced, the saturated water vapor pressure value is reduced, and the relative humidity inside the production workshop is improved; 2 in summer, the air conditioner is used for refrigerating, the temperature outside the production workshop is high, the temperature inside the production workshop is low, under the condition that the relative humidity needs to be reduced, the set temperature of the air conditioner is increased, the power of the air conditioner is reduced, the power consumption is reduced, the saturated water vapor pressure value is increased, and the relative humidity inside the production workshop is reduced; judging whether the temperature value is the two conditions, and calculating the temperature value to be adjusted according to a formula from the actual temperature and the relative humidity in the workshop, wherein the calculation steps are as follows:
S3021, calculating saturated water vapor pressure at the temperature according to actual temperature information, wherein the formula is as follows:
in the formula e s E is the saturated water vapor pressure at the current temperature 0 Saturated water vapor pressure at 0 DEG, x is a temperature influence coefficient, and W is an actual temperature;
s3022, calculating saturated water vapor pressure at the temperature through the formula, substituting relative humidity into the formula to calculate so as to obtain actual water vapor pressure, wherein the calculation formula is as follows:
e＝e s ×RH
wherein e is the actual water vapor pressure, e s Saturated water vapor pressure, RH is relative humidity;
s3023, adding the current relative humidity and the humidity adjustment value to obtain adjusted relative humidity, and dividing the actual water vapor pressure by the adjusted relative humidity to obtain adjusted saturated water vapor pressure; the calculation formula is as follows:
in the formula e t For the adjusted saturated water vapor pressure, e is the actual water vapor pressure, RH is the relative humidity, H t Is a humidity adjustment value;
s3024, substituting the specific value of the adjusted saturated water vapor pressure into the saturated water vapor pressure calculation formula to obtain an adjusted temperature value, wherein the difference value between the adjusted temperature value and the actual temperature is the adjusted temperature value; the calculation formula is as follows:
W t ＝Ws-W
in which W is t Ws is the adjusted temperature value, and W is the actual temperature value;
S303, when the temperature is limited and can be changed only slightly, except for the two cases: firstly, adjusting the temperature to a limit value capable of changing amplitude, waiting for the air conditioning equipment to run for a period of time, stabilizing the relative humidity, and then starting to run corresponding dehumidifying equipment or humidifying equipment, and supplementing the relative humidity information to a value required to be adjusted; in the case where the temperature value cannot or does not need to be changed: when the humidity adjustment value is positive, the humidifying equipment is operated when the relative humidity needs to be increased; when the humidity adjustment value is negative, the relative humidity is required to be reduced, and then the dehumidification equipment is operated; the calculation formula of humidity parameters required to be set for the operation of the equipment is as follows:
H c ＝RH+H t
h in c Setting humidity parameters for equipment, wherein RH is relative humidity, and H t Is the humidity adjustment value.
9. The method of supervisory control over yarn spinning according to claim 6, wherein: in S4 and S5, the adjustment information includes one or more of temperature adjustment information and humidity adjustment information, and when the temperature adjustment value or the humidity adjustment value is not zero, the corresponding adjustment information is automatically edited into instruction information that can be identified by the machine, and is sent to the corresponding temperature adjustment device or humidity adjustment device; the equipment comprises air conditioning equipment, humidifying equipment and dehumidifying equipment, and after the equipment receives corresponding instruction information, the equipment can automatically adjust the working state of the equipment according to the instruction information and respond to the instruction.
10. The method of supervisory control over yarn spinning according to claim 6, wherein: in S6, the collected information includes pre-yarn processing weight information and post-yarn processing weight information, interior and exterior temperature information of the production plant, and interior humidity information of the production plant; the adjustment information comprises one or more of temperature adjustment information and humidity adjustment information, and the temperature adjustment information and the humidity adjustment information are stored in a MySQL database to provide data tracing for management staff.
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| CN117369570A (en) * | 2023-11-23 | 2024-01-09 | 乐普(北京)生物科技有限公司 | Intelligent temperature and humidity adjusting system and method and application thereof in biological pharmaceutical factory |
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| CN117369570A (en) * | 2023-11-23 | 2024-01-09 | 乐普(北京)生物科技有限公司 | Intelligent temperature and humidity adjusting system and method and application thereof in biological pharmaceutical factory |
| CN117369570B (en) * | 2023-11-23 | 2024-04-16 | 乐普(北京)生物科技有限公司 | Intelligent temperature and humidity adjusting system and method and application thereof in biological pharmaceutical factory |
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