Dryer Alarm Control Method, Control Device and System

Abstract

The present invention provides a dryer alarm control method, a control device, and a system, which relate to the technical field of tobacco drying. The dryer alarm control method includes: determining that the drying stage is in the yellowing stage; and turning on the alarm system based on the actual difference between the first dry-bulb actual temperature and the first wet-bulb actual temperature of the first dry-wet bulb temperature sensor being less than or equal to the first preset difference, and the second wet-bulb actual humidity of the second dry-wet bulb temperature sensor being less than the preset humidity value. By applying the dryer alarm control method, the control device, and the system provided by the present invention, precise alarm prompts can be realized, and the false alarm frequency can be reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of tobacco drying, and particularly to a dryer alarm control method, control device and system. Background Art

[0002] Tobacco drying is a precise drying process. Therefore, it is necessary to monitor the dry and wet bulb temperatures in the curing barn in real time with high precision. Usually, dry and wet bulb temperature sensors are selected for real-time monitoring.

[0003] When the dry bulb temperature detected by the dry and wet bulb temperature sensor is the same as the wet bulb temperature value, an alarm will be given to remind that the water in the dry and wet bulb temperature sensor is lacking. In the actual tobacco curing process, according to the three-stage tobacco curing process, the dry and wet bulb temperature difference in the first stage is set to be 2°C or even below 1°C. The water content of the tobacco leaves is large, and the relative humidity in the curing barn is relatively high, close to 100%. Although there is water in the water kettle, the dry and wet bulb temperatures will be very close. At this time, the system is prone to false alarms of wet bulb water shortage. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems existing in the related art. For this purpose, the present invention provides a dryer alarm control method, control device and system, which can achieve precise alarm prompts and reduce the false alarm frequency.

[0005] The first aspect embodiment of the present invention provides a dryer alarm control method, including:

[0006] Determine that the drying stage is in the yellowing stage;

[0007] Based on the actual difference between the first dry bulb actual temperature and the first wet bulb actual temperature of the first dry and wet bulb temperature sensor being less than or equal to the first preset difference, and the second wet bulb actual humidity of the second dry and wet bulb temperature sensor being less than the preset humidity value, turn on the alarm system.

[0008] According to an embodiment of the present invention, the dryer alarm control method further includes:

[0009] Based on the actual difference between the first dry bulb actual temperature and the first wet bulb actual temperature of the first dry and wet bulb temperature sensor being less than or equal to the first preset difference, and the second wet bulb actual humidity of the second dry and wet bulb temperature sensor being greater than or equal to the preset humidity value, turn off the alarm system.

[0010] According to an embodiment of the present invention, the dryer alarm control method further includes:

[0011] Based on the actual difference between the first dry bulb actual temperature and the first wet bulb actual temperature of the first dry and wet bulb temperature sensor being greater than the first preset difference, turn off the alarm system.

[0012] According to an embodiment of the present invention, the dryer alarm control method further includes:

[0013] Determine that the drying stage is in the color-fixing stage;

[0014] Based on the actual difference between the first dry-bulb actual temperature and the first wet-bulb actual temperature of the first dry and wet bulb temperature sensor being less than or equal to the second preset difference, turn on the alarm system.

[0015] According to an embodiment of the present invention, the dryer alarm control method further includes:

[0016] Determine that the drying stage is in the stem-drying stage;

[0017] Based on the actual difference between the first dry-bulb actual temperature and the first wet-bulb actual temperature of the first dry and wet bulb temperature sensor being less than or equal to the third preset difference, turn on the alarm system.

[0018] According to an embodiment of the present invention, the actual difference between the first dry-bulb actual temperature and the first wet-bulb actual temperature based on the first dry and wet bulb temperature sensor is greater than the second preset difference, or

[0019] The actual difference between the first dry-bulb actual temperature and the first wet-bulb actual temperature based on the first dry and wet bulb temperature sensor is greater than the third preset difference,

[0020] Turn off the alarm system.

[0021] An embodiment of the second aspect of the present invention provides a dryer alarm control device, including:

[0022] An analysis module, adapted to determine that the drying stage is in the yellowing stage;

[0023] A control module, adapted to turn on the alarm system based on the actual difference between the first dry-bulb actual temperature and the first wet-bulb actual temperature of the first dry and wet bulb temperature sensor being less than or equal to the first preset difference, and the second wet-bulb actual humidity of the second dry and wet bulb temperature sensor being less than the preset humidity value.

[0024] An embodiment of the third aspect of the present invention provides a dryer alarm control system, including:

[0025] A processor, which implements the dryer alarm control method as described above when executing a program;

[0026] A first dry and wet bulb temperature sensor and a second dry and wet bulb temperature sensor, the second dry and wet bulb temperature sensor is arranged at the position of the first dry and wet bulb temperature sensor;

[0027] An alarm, the alarm, the first dry and wet bulb temperature sensor and the second dry and wet bulb temperature sensor are electrically connected.

[0028] According to an embodiment of the present invention, the first dry and wet bulb temperature sensor includes a first dry bulb temperature sensor and a first wet bulb temperature sensor, and the second dry and wet bulb temperature sensor includes a bimetal type dry and wet bulb temperature detection unit.

[0029] According to an embodiment of the present invention, the first dry and wet bulb temperature sensor further includes a water supply unit, and the first dry bulb temperature sensor and the first wet bulb temperature sensor are disposed on the water supply unit.

[0030] According to the dryer alarm control method, control device and system provided by the embodiments of the present invention, by adding a second dry and wet bulb temperature sensor to obtain the humidity in the baking room, and based on the humidity to identify and confirm the alarm of the alarm system, so as to reduce the frequency of false alarms. Specifically, in the fixed yellow stage of tobacco drying, when it is monitored that the actual difference between the first dry bulb actual temperature and the first wet bulb actual temperature is less than or equal to the first preset difference, the alarm system will initially determine that there is a lack of water in the water supply unit in the first dry and wet bulb temperature sensor. At this time, the second dry and wet bulb temperature sensor will further perform a secondary confirmation on the humidity in the baking room, that is, judge the magnitude between the actual humidity of the second wet bulb and the preset humidity. If the actual humidity of the second wet bulb satisfies being greater than or equal to the preset humidity, the alarm system will determine that the humidity in the baking room is too high, which in turn causes the actual difference between the first dry bulb actual temperature and the first wet bulb actual temperature to be less than or equal to the first preset difference, rather than being caused by a lack of water in the water supply unit. Based on this, the alarm system will not execute the alarm function; if the actual humidity of the second wet bulb is less than the preset humidity, the alarm system will determine that the humidity in the baking room is in a normal state, and the actual difference between the first dry bulb actual temperature and the first wet bulb actual temperature being less than or equal to the first preset difference is indeed caused by a lack of water in the water supply unit. At this time, the alarm system will execute the alarm function to prompt the lack of water. By applying the dryer alarm control method, control device and system provided by the present invention, accurate alarm prompts can be realized and the false alarm frequency can be reduced. Description of the Drawings

[0031] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0032] Figure 1 It is a schematic flowchart of the dryer alarm control method provided by the embodiments of the present invention;

[0033] Figure 2 It is a schematic structural diagram of the dryer alarm control device provided by the embodiments of the present invention.

[0034] Reference Signs:

[0035] 300. Analysis module; 400. Control module. Specific implementation manner

[0036] The following further describes in detail the implementation manners of the present invention in conjunction with the accompanying drawings and embodiments. The following embodiments are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0037] In the description of the embodiments of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the embodiments of the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0038] In the description of the embodiments of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific situations.

[0039] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or simply means that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or simply means that the first feature has a lower horizontal height than the second feature.

[0040] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the embodiments of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0041] As Figure 1 shown, an embodiment of the first aspect of the present invention provides a dryer alarm control method, including:

[0042] Step 100, determine that the drying stage is in the yellowing stage.

[0043] In the three-stage flue-curing process of tobacco, the three stages mainly include the yellowing stage, the color-fixing stage, and the stem-drying stage. Among them, in the yellowing stage, the main yellowing temperature of the tobacco leaves should be controlled at 35-38 °C, the temperature difference between the dry and wet bulbs should be kept at 2 °C or even below 1 °C, so that the tobacco leaves reach 70-80% yellow, the leaves become soft, the temperature for completing yellowing is controlled below 40-42 °C, and the wet bulb temperature is maintained at 35-37 °C, so that the tobacco leaves are basically yellowed, fully withered and collapsed, and the main veins are soft, ensuring the conversion components of the tobacco leaves and forming more aroma base substances.

[0044] In the yellowing stage, the large water content of the tobacco leaves will cause a relatively high relative humidity in the curing barn.

[0045] Step 200, based on the actual difference between the first dry bulb actual temperature and the first wet bulb actual temperature of the first dry and wet bulb temperature sensor being less than or equal to the first preset difference, and the second wet bulb actual humidity of the second dry and wet bulb temperature sensor being less than the preset humidity value, turn on the alarm system.

[0046] According to the dryer alarm control method provided by the embodiments of the present invention, by adding a second dry-wet bulb temperature sensor to obtain the humidity in the curing barn, and based on the humidity, the alarm of the alarm system is identified and confirmed to reduce the frequency of false alarms. Specifically, in the yellowing stage of tobacco drying, when it is monitored that the actual difference between the first dry bulb actual temperature and the first wet bulb actual temperature is less than or equal to the first preset difference, the alarm system will initially determine that there is a water shortage in the water supply unit of the first dry-wet bulb temperature sensor. At this time, the second dry-wet bulb temperature sensor will further perform a secondary confirmation on the humidity in the curing barn, that is, judge the magnitude between the actual humidity of the second wet bulb and the preset humidity. If the actual humidity of the second wet bulb is less than the preset humidity, the alarm system will determine that the humidity in the curing barn is in a normal state, and the actual difference between the first dry bulb actual temperature and the first wet bulb actual temperature being less than the first preset difference is indeed caused by the water shortage in the water supply unit. At this time, the alarm system will execute the alarm function to prompt the water shortage. Applying the dryer alarm control method, control device and system provided by the present invention can achieve precise alarm prompts and reduce the frequency of false alarms.

[0047] Among them, the range of the first preset difference can be between 2 degrees Celsius and 3 degrees Celsius, and the first preset difference can also be set to different range sizes according to actual environmental requirements. The preset humidity can correspond to the humidity in the curing barn and is expressed as a percentage. For example, if the actual humidity of the second wet bulb is greater than or equal to 90%, the humidity in the curing barn is too high. The value of the preset humidity can also be set according to actual environmental requirements, and the embodiments of the present invention do not make specific limitations on this.

[0048] In the embodiments of the present invention, the dryer alarm control method further includes:

[0049] Based on the actual difference between the first dry bulb actual temperature and the first wet bulb actual temperature of the first dry-wet bulb temperature sensor being less than or equal to the first preset difference, and the actual humidity of the second wet bulb of the second dry-wet bulb temperature sensor being greater than or equal to the preset humidity value, the alarm system is turned off.

[0050] Specifically, when it is monitored that the actual difference between the first dry bulb actual temperature and the first wet bulb actual temperature is less than or equal to the first preset difference, the alarm system will initially determine that there is a water shortage in the water supply unit of the first dry-wet bulb temperature sensor. At this time, the second dry-wet bulb temperature sensor will further perform a secondary confirmation on the humidity in the curing barn, that is, judge the magnitude between the actual humidity of the second wet bulb and the preset humidity. If the actual humidity of the second wet bulb satisfies being greater than or equal to the preset humidity, the alarm system will determine that the humidity in the curing barn is too high, which in turn causes the actual difference between the first dry bulb actual temperature and the first wet bulb actual temperature to be less than or equal to the first preset difference, rather than being caused by the water shortage in the water supply unit. Based on this, the alarm system will not execute the alarm function.

[0051] In the embodiments of the present invention, the dryer alarm control method further includes:

[0052] Based on the actual difference between the first dry-bulb actual temperature and the first wet-bulb actual temperature of the first dry and wet bulb temperature sensor being greater than the first preset difference, the alarm system is turned off.

[0053] Specifically, when the actual difference between the first dry-bulb actual temperature and the first wet-bulb actual temperature of the first dry and wet bulb temperature sensor is greater than the first preset difference, it indicates that the actual difference between the first dry-bulb actual temperature and the first wet-bulb actual temperature at this time conforms to the normal state parameters, and there is no lack of water in the water supply unit. At this time, the alarm system will not execute the alarm function.

[0054] In an embodiment of the present invention, the dryer alarm control method further includes:

[0055] Determine that the drying stage is in the color-fixing stage;

[0056] Based on the actual difference between the first dry-bulb actual temperature and the first wet-bulb actual temperature of the first dry and wet bulb temperature sensor being less than or equal to the second preset difference, the alarm system is turned on.

[0057] The color-fixing stage is one of the stages in the three-stage flue-cured tobacco process. In the color-fixing stage, the temperature should be raised at an appropriate speed according to the quality of the tobacco leaves, and the appropriate humidity should be mastered to ensure that the tobacco leaves turn completely yellow and are successfully color-fixed. In the range of dry-bulb temperature from 46 °C to 48 °C and wet-bulb temperature from 37 °C to 38 °C, the tobacco leaf veins turn yellow until the yellow leaves and yellow veins form small rolls. Keep the wet-bulb temperature at about 38 °C to 39 °C when the dry-bulb temperature is about 54 °C, and extend the time appropriately to achieve large rolls of tobacco leaves and promote the formation of more aroma substances.

[0058] In the color-fixing stage, the water content of the tobacco leaves is small. At this time, the water vapor evaporated by the tobacco leaves during the baking stage has little impact on the humidity in the curing barn. Therefore, there will be no problem of temperature detection error of the first dry and wet bulb temperature sensor caused by high humidity in the curing barn. The alarm system gives an alarm prompt based on the data collected by the first dry and wet bulb temperature sensor. That is, when the actual difference between the first dry-bulb actual temperature and the first wet-bulb actual temperature of the first dry and wet bulb temperature sensor is less than or equal to the second preset difference, it is determined at this time that there is a lack of water in the water supply unit, and the alarm system is turned on.

[0059] Among them, the second preset difference can be set according to the actual process requirements of the color-fixing stage.

[0060] In an embodiment of the present invention, the dryer alarm control method further includes:

[0061] Determine that the drying stage is in the dry-leaf stage;

[0062] Based on the actual difference between the first dry-bulb actual temperature and the first wet-bulb actual temperature of the first dry and wet bulb temperature sensor being less than or equal to the third preset difference, the alarm system is turned on.

[0063] The dry stem stage is the last stage in the three-stage flue-cured tobacco process. The maximum temperature during the dry stem stage of the tobacco leaves should be controlled between 65 °C and 68 °C, and the wet bulb temperature should be controlled between 40 °C and 43 °C to enhance the color and chroma of the tobacco leaves while reducing the volatilization and loss of aroma substances in the tobacco leaves.

[0064] During the dry stem stage, the water content in the tobacco leaves is less. Similarly, like in the color fixing stage, at this time, there will be no problem of temperature detection error of the first dry and wet bulb temperature sensor caused by high humidity in the curing barn. The alarm system gives an alarm prompt based on the data collected by the first dry and wet bulb temperature sensor. That is, when the actual difference between the first dry bulb actual temperature and the first wet bulb actual temperature of the first dry and wet bulb temperature sensor is less than or equal to the third preset difference, it is determined at this time that there is a lack of water in the water supply unit, and the alarm system is turned on.

[0065] Among them, the third preset difference can be set according to the actual process requirements of the dry stem stage.

[0066] In the embodiment of the present invention, based on the actual difference between the first dry bulb actual temperature and the first wet bulb actual temperature of the first dry and wet bulb temperature sensor being greater than the second preset difference, or

[0067] based on the actual difference between the first dry bulb actual temperature and the first wet bulb actual temperature of the first dry and wet bulb temperature sensor being greater than the third preset difference,

[0068] The alarm system is turned off.

[0069] This embodiment is applicable to the situation where the alarm of the color fixing stage and the dry stem stage does not give an alarm. When the actual difference between the first dry bulb actual temperature and the first wet bulb actual temperature of the first dry and wet bulb temperature sensor is greater than the second preset difference, or

[0070] based on the actual difference between the first dry bulb actual temperature and the first wet bulb actual temperature of the first dry and wet bulb temperature sensor being greater than the third preset difference, it indicates that there is no lack of water in the water supply unit, and at this time the alarm does not need to give an alarm.

[0071] As Figure 2 shown, the second aspect embodiment of the present invention provides a dryer alarm control device, including an analysis module 300 and a control module 400. The analysis module 300 is adapted to determine that the drying stage is in the yellow fixing stage, and the control module 400 is adapted to turn on the alarm system based on the actual difference between the first dry bulb actual temperature and the first wet bulb actual temperature of the first dry and wet bulb temperature sensor being less than or equal to the first preset difference, and the second wet bulb actual humidity of the second dry and wet bulb temperature sensor being less than the preset humidity value.

[0072] The dryer alarm control device provided by the embodiment of the present invention determines that the drying stage is in the fixed yellow stage through the analysis module 300. When the actual difference between the first dry-bulb actual temperature and the first wet-bulb actual temperature of the first dry-wet bulb temperature sensor is less than or equal to the first preset difference, and the second wet-bulb actual humidity of the second dry-wet bulb temperature sensor is less than the preset humidity value, the control module 400 turns on the alarm system to accurately control the alarm to give an alarm and reduce the false alarm frequency.

[0073] It should be noted here that the above-mentioned dryer alarm control device provided by the embodiment of the present invention can implement all the method steps implemented by the above-mentioned dryer alarm control method embodiment and can achieve the same technical effects. Therefore, the same parts and beneficial effects as those in the method embodiment will not be specifically described in this embodiment.

[0074] The third aspect of the embodiment of the present invention provides a dryer alarm control system, which includes a processor, a first dry-wet bulb temperature sensor, a second dry-wet bulb temperature sensor, and an alarm. When the processor executes a program, it implements the dryer alarm control method in any of the above embodiments; the second dry-wet bulb temperature sensor is arranged at the position of the first dry-wet bulb temperature sensor; the alarm, the first dry-wet bulb temperature sensor, and the second dry-wet bulb temperature sensor are electrically connected. The first dry-wet bulb temperature sensor is suitable for collecting the actual difference between the first dry-bulb actual temperature and the first wet-bulb actual temperature, and the second dry-wet bulb temperature sensor is suitable for collecting the second wet-bulb actual humidity to monitor the humidity in the curing barn. The second dry-wet bulb temperature sensor is arranged at the position of the first dry-wet bulb temperature sensor, which can ensure the accuracy of temperature information and humidity information collection, further improve the control accuracy of the dryer alarm control system, and the alarm can receive temperature and humidity signals and execute the alarm function based on the temperature and humidity signals.

[0075] In the embodiment of the present invention, the first dry-wet bulb temperature sensor includes a first dry-bulb temperature sensor and a first wet-bulb temperature sensor, and the second dry-wet bulb temperature sensor includes a bimetallic dry-wet bulb temperature detection unit.

[0076] The structure of the first dry-wet bulb temperature sensor can refer to the special temperature and humidity meter for the "water hyacinth" type curing barn. The special temperature and humidity meter for the "water hyacinth" type curing barn consists of a water kettle, a wet gauze strip, a dry-bulb temperature sensor, and a wet-bulb temperature sensor. One end of the gauze strip is inserted into the water kettle, and the other end wraps the wet-bulb temperature sensor. The dry-bulb temperature sensor detects the dry-bulb temperature of the curing barn. Water is filled in the water kettle, the gauze is wet, and the temperature measured by the wet-bulb temperature sensor is the wet-bulb temperature. The tobacco dryer controls the dryer to heat up or dehumidify according to the measured dry-wet bulb temperature data of the curing barn; when there is no water in the water kettle, the temperature measured by the wet-bulb temperature sensor is approximately equal to the dry-bulb temperature. The bimetallic dry-wet bulb temperature detection unit in the second dry-wet bulb temperature sensor can obtain temperature and humidity parameter information.

[0077] In an embodiment of the present invention, the first dry and wet bulb temperature sensor further includes a water supply unit, and the first dry bulb temperature sensor and the first wet bulb temperature sensor are arranged on the water supply unit. The water supply unit is filled with a liquid to keep the first wet bulb temperature sensor in a wet state. The water supply unit may include a kettle structure, a water pump, etc., and the liquid may be pure water, a chemical reagent, etc., and the present invention does not limit this.

[0078] It should be noted here that the above dryer alarm control system provided by the embodiment of the present invention can implement all the method steps implemented by the above dryer alarm control method embodiment, and can achieve the same technical effects. The same parts and beneficial effects as those in the method embodiment will not be specifically described in this embodiment.

[0079] In summary, according to the dryer alarm control method, control device, and system provided by the embodiment of the present invention, by adding a second dry and wet bulb temperature sensor to obtain the humidity in the curing barn and based on the humidity to identify and confirm the alarm of the alarm system, the frequency of false alarms can be reduced. Specifically, in the yellowing stage of tobacco drying, when it is monitored that the actual difference between the first dry bulb actual temperature and the first wet bulb actual temperature is less than or equal to the first preset difference, the alarm system will initially determine that the water supply unit in the first dry and wet bulb temperature sensor is short of water. At this time, the second dry and wet bulb temperature sensor will further perform a secondary confirmation on the humidity in the curing barn, that is, judge the magnitude relationship between the actual humidity of the second wet bulb and the preset humidity. If the actual humidity of the second wet bulb satisfies being greater than or equal to the preset humidity, the alarm system will determine that the humidity in the curing barn is too high, which in turn leads to the actual difference between the first dry bulb actual temperature and the first wet bulb actual temperature being less than or equal to the first preset difference, rather than being caused by the water supply unit being short of water. Based on this, the alarm system will not execute the alarm function; if the actual humidity of the second wet bulb is less than the preset humidity, the alarm system will determine that the humidity in the curing barn is in a normal state, and the actual difference between the first dry bulb actual temperature and the first wet bulb actual temperature being less than or equal to the first preset difference is indeed caused by the water supply unit being short of water. At this time, the alarm system will execute the alarm function to prompt water shortage. By applying the dryer alarm control method, control device, and system provided by the present invention, accurate alarm prompts can be realized and the frequency of false alarms can be reduced.

[0080] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A dryer alarm control method, characterized in that, Including: Determine that the drying stage is in the yellowing stage; Based on that the actual difference between the first dry-bulb actual temperature and the first wet-bulb actual temperature of the first dry and wet bulb temperature sensor is less than or equal to the first preset difference, and the second wet-bulb actual humidity of the second dry and wet bulb temperature sensor is less than the preset humidity value, turn on the alarm system; Based on that the actual difference between the first dry-bulb actual temperature and the first wet-bulb actual temperature of the first dry and wet bulb temperature sensor is less than or equal to the first preset difference, and the second wet-bulb actual humidity of the second dry and wet bulb temperature sensor is greater than or equal to the preset humidity value, turn off the alarm system; Wherein, the range of the first preset difference is 2 degrees Celsius to 3 degrees Celsius.

2. The dryer alarm control method according to claim 1, characterized in that, The dryer alarm control method further includes: Based on that the actual difference between the first dry-bulb actual temperature and the first wet-bulb actual temperature of the first dry and wet bulb temperature sensor is greater than the first preset difference, turn off the alarm system.

3. The dryer alarm control method according to claim 1, characterized in that, The dryer alarm control method further includes: Determine that the drying stage is in the color-fixing stage; Based on that the actual difference between the first dry-bulb actual temperature and the first wet-bulb actual temperature of the first dry and wet bulb temperature sensor is less than or equal to the second preset difference, turn on the alarm system.

4. The dryer alarm control method according to claim 3, characterized in that, The dryer alarm control method further includes: Determine that the drying stage is in the stem-drying stage; Based on that the actual difference between the first dry-bulb actual temperature and the first wet-bulb actual temperature of the first dry and wet bulb temperature sensor is less than or equal to the third preset difference, turn on the alarm system.

5. The dryer alarm control method according to claim 4, characterized in that, Based on that the actual difference between the first dry-bulb actual temperature and the first wet-bulb actual temperature of the first dry and wet bulb temperature sensor is greater than the second preset difference, or Based on that the actual difference between the first dry-bulb actual temperature and the first wet-bulb actual temperature of the first dry and wet bulb temperature sensor is greater than the third preset difference, Turn off the alarm system.

6. A dryer alarm control device, characterized in that, Including: An analysis module, adapted to determine that the drying stage is in the yellowing stage; A control module, adapted to turn on the alarm system based on that the actual difference between the first dry-bulb actual temperature and the first wet-bulb actual temperature of the first dry and wet bulb temperature sensor is less than or equal to the first preset difference, and the second wet-bulb actual humidity of the second dry and wet bulb temperature sensor is less than the preset humidity value; Based on that the actual difference between the first dry-bulb actual temperature and the first wet-bulb actual temperature of the first dry and wet bulb temperature sensor is less than or equal to the first preset difference, and the second wet-bulb actual humidity of the second dry and wet bulb temperature sensor is greater than or equal to the preset humidity value, turn off the alarm system; Wherein, the range of the first preset difference is 2 degrees Celsius to 3 degrees Celsius.

7. A dryer alarm control system, characterized in that, Including: A processor, when the processor executes a program, implements the dryer alarm control method according to any one of claims 1 to 5; A first dry and wet bulb temperature sensor and a second dry and wet bulb temperature sensor, the second dry and wet bulb temperature sensor is arranged at the position of the first dry and wet bulb temperature sensor; An alarm, the alarm, the first dry and wet bulb temperature sensor and the second dry and wet bulb temperature sensor are electrically connected.

8. The dryer alarm control system according to claim 7, characterized in that, The first dry and wet bulb temperature sensor includes a first dry-bulb temperature sensor and a first wet-bulb temperature sensor, and the second dry and wet bulb temperature sensor includes a bimetal type dry and wet bulb temperature detection unit.

9. The dryer alarm control system according to claim 8, characterized in that, The first dry and wet bulb temperature sensor further includes a water supply unit, and the first dry-bulb temperature sensor and the first wet-bulb temperature sensor are arranged on the water supply unit.

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