Method, system and readable storage medium for controlling temperature profile of kiln for drying wood

Abstract

The application discloses a kind of kiln temperature curve regulation and control method, system and readable storage medium for wood drying, and the method comprises: obtaining the wood parameter of wood to be dried, wherein the wood parameter includes wood type;Based on the wood type, obtain the basic parameter, wherein the basic parameter includes kiln temperature, unit time temperature adjusting parameter, temperature adjusting duration parameter and moisture removal parameter;In the drying process of the wood to be dried, obtain the current drying parameter, the drying parameter includes kiln temperature and wood humidity;Based on the drying parameter in combination with the basic parameter, the kiln temperature curve is regulated and controlled, including temperature identification regulation and control, humidity identification regulation and control and temperature adjusting duration control.The application can control temperature and humidity in real time according to different drying wood, and the temperature can be adjusted as needed to realize the drying effect of different wood, to ensure that wood can be successfully dried, to reduce the damage rate.

Description

Technical Field

[0001] This invention relates to the field of wood drying technology, and more specifically, to a method, system, and readable storage medium for controlling the temperature profile of a kiln for wood drying. Background Technology

[0002] Wood drying is the process of rapidly removing moisture from wood to achieve its purpose. Wood typically contains a certain amount of moisture, and this amount varies depending on the tree species, age, and harvesting season. To ensure the quality of wood and wood products and extend their service life, appropriate measures must be taken to reduce the moisture content of the wood to a certain level. To guarantee the quality of the wood being dried, the humidity of the drying medium must also be controlled to achieve rapid and high-quality drying. Wood drying is a crucial step in ensuring and improving wood quality, reducing losses due to degradation, and increasing wood utilization. Therefore, the goal of wood drying is to increase drying speed while maintaining drying quality and reducing energy consumption and drying costs.

[0003] Currently, the applications of dried wood include, for example, obtaining carbonized wood, which refers to wood that has undergone homogeneous carbonization treatment in a high-temperature environment. In addition to its beautiful surface, carbonized wood also has the advantages of being resistant to decay and biological attack, deformation and cracking, and high temperature resistance. Furthermore, due to its low moisture content, low water absorption, stable material, non-deformation, complete degreasing without grease exudation, good heat insulation performance, and no special odor, it is an ideal material for furniture and interior and exterior decoration. Therefore, wood drying is necessary and has a very good application prospect. Summary of the Invention

[0004] The purpose of this invention is to provide a method, system, and readable storage medium for controlling the temperature curve of a kiln for wood drying. This method allows for real-time control of temperature and humidity based on different types of wood to be dried, and the temperature can be adjusted as needed to achieve different drying effects for different types of wood, thereby ensuring successful drying and reducing damage rates.

[0005] The first aspect of this invention provides a method for controlling the temperature profile of a kiln for wood drying, comprising the following steps:

[0006] Obtain the wood parameters of the wood to be dried, wherein the wood parameters include the wood type;

[0007] Based on the wood type, basic parameters are obtained, including kiln start-up temperature, temperature adjustment parameters per unit time, temperature adjustment duration parameters, and moisture removal parameters.

[0008] During the drying process of the wood to be dried, the current drying parameters are obtained, including the kiln temperature and the moisture content of the wood.

[0009] The kiln temperature curve is adjusted based on the drying parameters and the basic parameters, including temperature recognition and adjustment, humidity recognition and adjustment, and temperature adjustment time adjustment.

[0010] In this solution, obtaining the wood parameters of the wood to be dried specifically includes:

[0011] Obtain the initial wood type by retrieving the type option input from the user;

[0012] Image data of the wood to be dried is acquired using a preset image acquisition device, and the wood comparison type is obtained by image data analysis based on the image data.

[0013] The initial wood type is compared with the comparison wood type. If the comparison is consistent, the wood type is output based on the comparison result. If the comparison is inconsistent, the wood type is obtained from the user's feedback data.

[0014] In this solution, obtaining basic parameters based on the wood type specifically includes:

[0015] The wood to be dried is identified based on the wood type, wherein the wood to be dried includes at least ash wood and eucalyptus wood;

[0016] Based on different types of wood, corresponding basic parameters are obtained, wherein the basic parameters for each type of wood are obtained based on the setting parameters input by the user, and / or the basic parameters are obtained by matching the wood type with a preset parameter database;

[0017] When simultaneously acquiring user-input settings and matching based on a parameter database, the corresponding parameter results are fused to obtain the corresponding basic parameters.

[0018] In this solution, obtaining the current drying parameters specifically includes:

[0019] During the drying process of the wood to be dried, the drying parameters are acquired based on a set of sensors, wherein,

[0020] The temperature of the kiln is obtained based on a temperature sensor; and

[0021] The moisture content of the wood is obtained based on a humidity sensor.

[0022] In this scheme, the adjustment of the kiln temperature curve based on the drying parameters and the basic parameters specifically includes:

[0023] The kiln temperature is adjusted based on the kiln start-up temperature, and the kiln temperature is adjusted by the unit time temperature adjustment parameter.

[0024] The moisture content of the wood can be adjusted based on the moisture removal parameters. Specifically, this can be achieved by controlling the temperature and / or the duration of temperature adjustment.

[0025] In this solution, the method further includes:

[0026] The target type is identified based on the wood type, wherein the target type includes rose eucalyptus wood;

[0027] Based on the target type, the preset steam spraying device is controlled to perform steam spraying treatment based on the corresponding kiln temperature, combined with the temperature adjustment time parameter.

[0028] A second aspect of the present invention also provides a temperature curve control system for a wood drying kiln, comprising a memory and a processor. The memory includes a method program for controlling the temperature curve of a wood drying kiln. When the processor executes the method program for controlling the temperature curve of a wood drying kiln, it performs the following steps:

[0029] Obtain the wood parameters of the wood to be dried, wherein the wood parameters include the wood type;

[0030] Based on the wood type, basic parameters are obtained, including kiln start-up temperature, temperature adjustment parameters per unit time, temperature adjustment duration parameters, and moisture removal parameters.

[0031] During the drying process of the wood to be dried, the current drying parameters are obtained, including the kiln temperature and the moisture content of the wood.

[0032] The kiln temperature curve is adjusted based on the drying parameters and the basic parameters, including temperature recognition and adjustment, humidity recognition and adjustment, and temperature adjustment time adjustment.

[0033] In this solution, obtaining the wood parameters of the wood to be dried specifically includes:

[0034] Obtain the initial wood type by retrieving the type option input from the user;

[0035] Image data of the wood to be dried is acquired using a preset image acquisition device, and the wood comparison type is obtained by image data analysis based on the image data.

[0036] The initial wood type is compared with the comparison wood type. If the comparison is consistent, the wood type is output based on the comparison result. If the comparison is inconsistent, the wood type is obtained from the user's feedback data.

[0037] In this solution, obtaining basic parameters based on the wood type specifically includes:

[0038] The wood to be dried is identified based on the wood type, wherein the wood to be dried includes at least ash wood and eucalyptus wood;

[0039] Based on different types of wood, corresponding basic parameters are obtained, wherein the basic parameters for each type of wood are obtained based on the setting parameters input by the user, and / or the basic parameters are obtained by matching the wood type with a preset parameter database;

[0040] When simultaneously acquiring user-input settings and matching based on a parameter database, the corresponding parameter results are fused to obtain the corresponding basic parameters.

[0041] In this solution, obtaining the current drying parameters specifically includes:

[0042] During the drying process of the wood to be dried, the drying parameters are acquired based on a set of sensors, wherein,

[0043] The temperature of the kiln is obtained based on a temperature sensor; and

[0044] The moisture content of the wood is obtained based on a humidity sensor.

[0045] In this scheme, the adjustment of the kiln temperature curve based on the drying parameters and the basic parameters specifically includes:

[0046] The kiln temperature is adjusted based on the kiln start-up temperature, and the kiln temperature is adjusted by the unit time temperature adjustment parameter.

[0047] The moisture content of the wood can be adjusted based on the moisture removal parameters. Specifically, this can be achieved by controlling the temperature and / or the duration of temperature adjustment.

[0048] In this solution, when the program for controlling the temperature curve of the kiln for drying wood is executed by the processor, it also performs the following steps:

[0049] The target type is identified based on the wood type, wherein the target type includes rose eucalyptus wood;

[0050] Based on the target type, the preset steam spraying device is controlled to perform steam spraying treatment based on the corresponding kiln temperature, combined with the temperature adjustment time parameter.

[0051] A third aspect of the present invention provides a computer-readable storage medium comprising a machine program for a method of controlling the temperature curve of a wood drying kiln, wherein when the program is executed by a processor, it implements the steps of a method for controlling the temperature curve of a wood drying kiln as described in any of the preceding claims.

[0052] This invention discloses a method, system, and readable storage medium for controlling the temperature curve of a kiln for drying wood. It can control the temperature and humidity in real time according to different types of wood to be dried, and can adjust the temperature as needed to achieve different drying effects for different types of wood, so as to ensure successful drying of wood and reduce damage rate. Attached Figure Description

[0053] Figure 1 A flowchart of a method for controlling the temperature curve of a kiln for drying wood according to the present invention is shown;

[0054] Figure 2 A block diagram of a kiln temperature curve control system for wood drying according to the present invention is shown. Detailed Implementation

[0055] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0056] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the scope of protection of the invention is not limited to the specific embodiments disclosed below.

[0057] Specifically, due to the high moisture content of wet wood, directly carbonizing it can lead to uneven carbonization, warping, and cracking. Therefore, existing wood carbonization equipment can only use dried wood as raw material. At the end of the drying process, the wood temperature is typically around 80°C, requiring natural cooling to below 40°C before removal from the drying equipment. During carbonization, the wood needs to be preheated to over 100°C before entering the carbonization stage. Therefore, a separate wood drying system is necessary before carbonization to prevent cracking or warping during the later stages.

[0058] Figure 1 A flowchart of a method for controlling the temperature curve of a kiln for drying wood, as described in this application, is shown.

[0059] like Figure 1 As shown, this application discloses a method for controlling the temperature profile of a kiln for wood drying, comprising the following steps:

[0060] S102, Obtain the wood parameters of the wood to be dried, wherein the wood parameters include the wood type;

[0061] S104. Obtain basic parameters based on the wood type, wherein the basic parameters include kiln start-up temperature, temperature adjustment parameters per unit time, temperature adjustment duration parameters, and moisture removal parameters.

[0062] S106, during the drying process of the wood to be dried, the current drying parameters are obtained, including the kiln temperature and the moisture content of the wood;

[0063] S108, the kiln temperature curve is adjusted based on the drying parameters and the basic parameters, including temperature recognition and adjustment, humidity recognition and adjustment, and temperature adjustment time adjustment.

[0064] It should be noted that, in this embodiment, the temperature control curves corresponding to different wood types are different. Therefore, it is first necessary to obtain the wood parameters of the wood to be dried. Accordingly, the wood harness includes the wood type, so that the basic parameters can be obtained based on the wood type. The basic parameters are the kiln start temperature, unit time temperature adjustment parameters (e.g., the temperature rise value and the temperature drop value per unit time), temperature adjustment duration parameters (e.g., the duration of heating, holding, or cooling), and moisture removal parameters corresponding to the current type of wood during drying. The moisture removal parameters can be compared with the moisture content detected in the wood. Furthermore, during the drying process of the wood to be dried... During the drying process, drying parameters need to be acquired in real time. These parameters include kiln temperature and wood moisture content. Specifically, different sensors are used to acquire the corresponding parameters. Then, during the drying process, the drying parameters are adjusted one by one in combination with the basic parameters. For example, the kiln temperature is controlled by combining the kiln start-up temperature or the temperature adjustment parameter per unit time. Similarly, when controlling the moisture content, the moisture removal parameter can be compared with the wood moisture content, and the temperature can be used for adjustment. The temperature adjustment time is also controlled based on the temperature parameter. Therefore, this application specifically describes how the kiln temperature curve is controlled during wood drying.

[0065] According to an embodiment of the present invention, obtaining the wood parameters of the wood to be dried specifically includes:

[0066] Obtain the initial wood type by retrieving the type option input from the user;

[0067] Image data of the wood to be dried is acquired using a preset image acquisition device, and the wood comparison type is obtained by image data analysis based on the image data.

[0068] The initial wood type is compared with the comparison wood type. If the comparison is consistent, the wood type is output based on the comparison result. If the comparison is inconsistent, the wood type is obtained from the user's feedback data.

[0069] It should be noted that, specifically in this embodiment, since the basic parameters of different types of wood differ, it is necessary to identify the wood to ensure targeted processing based on different types of wood during data processing. This ensures the safety and stability of the data in the initial stage. If the wood type is determined directly by human input, errors in human input can cause irreparable losses. Alternatively, if the wood type is determined directly through image data analysis, misjudgments may still occur due to the error tolerance of the model. Therefore, this application proposes a dual-mode mechanism combining human input and image data analysis to ensure the accuracy of wood type identification. Specifically… The initial wood type is obtained by acquiring the type option input from the user terminal; image data of the wood to be dried is acquired based on a preset image acquisition device, and image data analysis is performed on the image data to obtain a comparative wood type; the initial wood type is compared with the comparative wood type, wherein if the comparison is consistent, the wood type is output based on the comparison result; if the comparison is inconsistent, the wood type is obtained by acquiring feedback data from the user terminal. The consistency indicates that the type option input by the user terminal is correct, while the inconsistency may be due to an error in the human input option or an error in the image data analysis judgment, so human confirmation is required to ensure the accuracy of the wood type.

[0070] According to an embodiment of the present invention, obtaining basic parameters based on the wood type specifically includes:

[0071] The wood to be dried is identified based on the wood type, wherein the wood to be dried includes at least ash wood and eucalyptus wood;

[0072] Based on different types of wood, corresponding basic parameters are obtained, wherein the basic parameters for each type of wood are obtained based on the setting parameters input by the user, and / or the basic parameters are obtained by matching the wood type with a preset parameter database;

[0073] When simultaneously acquiring user-input settings and matching based on a parameter database, the corresponding parameter results are fused to obtain the corresponding basic parameters.

[0074] It should be noted that, in this embodiment, the wood to be dried includes at least ash wood and eucalyptus wood. Specifically, ash wood includes, for example, European ash, American ash thick boards, and American ash thin boards, while eucalyptus wood includes rose eucalyptus. Specifically, different types of wood have different basic parameters. When obtaining the basic parameters, the basic parameters corresponding to each type of wood can be obtained through the setting parameters input by the user terminal, and / or the basic parameters can be obtained by matching the wood type with a preset parameter database. That is, the corresponding basic parameters can be obtained based on the setting parameters input by the user terminal. In actual application, the setting parameters can be simultaneously stored in the wood parameters. Alternatively, type matching can be performed based on the wood type and a pre-set parameter database, and the matched data can be used as the basic parameters. Alternatively, the setting parameters input by the user terminal and the matching based on the parameter database can be obtained simultaneously. In this case, data fusion is required. That is, the corresponding basic parameters may overlap or be missing. When there is overlap, the setting parameters input by the user terminal take precedence, and the overlapping data matched in the database are deleted.

[0075] According to an embodiment of the present invention, obtaining the current drying parameters specifically includes:

[0076] During the drying process of the wood to be dried, the drying parameters are acquired based on a set of sensors, wherein,

[0077] The temperature of the kiln is obtained based on a temperature sensor; and

[0078] The moisture content of the wood is obtained based on a humidity sensor.

[0079] It should be noted that, in this embodiment, during drying, the drying parameters inside the kiln need to be obtained based on a sensor group. The sensor group includes at least a temperature sensor and a humidity sensor. Specifically, the temperature sensor can be used to obtain the kiln temperature during drying, and the humidity sensor can be used to obtain the moisture content of the wood during drying.

[0080] According to an embodiment of the present invention, the step of adjusting the kiln temperature curve based on the drying parameters and the basic parameters specifically includes:

[0081] The kiln temperature is adjusted based on the kiln start-up temperature, and the kiln temperature is adjusted by the unit time temperature adjustment parameter.

[0082] The moisture content of the wood can be adjusted based on the moisture removal parameters. Specifically, this can be achieved by controlling the temperature and / or the duration of temperature adjustment.

[0083] It should be noted that, in this embodiment, specifically, the kiln temperature is adjusted based on the kiln starting temperature. This is achieved by obtaining the kiln starting temperature corresponding to the wood to be dried, and then raising the kiln temperature to the corresponding starting temperature for drying. The temperature adjustment value per unit time is then controlled according to the different types of wood. For example, when drying European ash, the corresponding temperature adjustment value is an increase of 1°C. However, when drying rose eucalyptus, which involves two stages, the corresponding temperature adjustment value per unit time includes maintaining the temperature constant and increasing it by 1°C. The unit time corresponds to "1 hour". When controlling the moisture content, the moisture content can be adjusted based on the moisture content of the wood and the moisture removal parameters. Specifically, this can be achieved by adjusting the temperature and / or the duration of temperature adjustment. For example, for thick American ash boards, the moisture removal rate is kept constant at "80%" for the first three days of drying. Then, the moisture removal rate is gradually reduced, and the moisture removal is turned off every "12 hours". This means that the moisture removal rate is still "80%" on the fourth and fifth days. After two "12-hour" periods, the moisture removal rate drops to "70%" on the sixth and seventh days. At the same time, the kiln temperature rises synchronously during the process of decreasing moisture removal, increasing by 1°C per day.

[0084] According to an embodiment of the present invention, the method further includes:

[0085] The target type is identified based on the wood type, wherein the target type includes rose eucalyptus wood;

[0086] Based on the target type, the preset steam spraying device is controlled to perform steam spraying treatment based on the corresponding kiln temperature, combined with the temperature adjustment time parameter.

[0087] It should be noted that in this embodiment, the ash wood described in the above embodiments includes, for example, European ash, thick American ash planks, and thin American ash planks, while eucalyptus wood includes rose eucalyptus. Specifically, for rose eucalyptus wood, steam spraying treatment is required. The steam spraying treatment is performed based on the corresponding kiln temperature by controlling a preset steam spraying device in conjunction with temperature and duration parameters. The first kiln heating is initiated at 50°C, held for 4 hours, and then steam spraying begins until the temperature drops to 55°C. The kiln is then heated to 58°C for a second steam spraying treatment until the temperature drops to 63°C.

[0088] It is worth mentioning that the method also includes:

[0089] Based on the combined adjustment of kiln temperature and wood moisture using dry-bulb and wet-bulb methods;

[0090] Maintain the temperature difference between the dry bulb and the wet bulb within the target temperature range, and control the kiln temperature to rise to the kiln start-up temperature.

[0091] It should be noted that, in this embodiment, when adjusting the temperature and wood moisture content, the application can use dry bulbs and wet bulbs for adjustment. Dry bulbs can perform dehumidification, and wet bulbs can work in conjunction with dry bulbs for temperature control. Since it is necessary to ensure that dry bulbs and wet bulbs can act on temperature and humidity during the heating process, it is necessary to ensure that the temperature difference between the dry bulbs and the wet bulbs is limited to the target temperature difference range during the process of the kiln temperature rising to the kiln start-up temperature.

[0092] It is worth mentioning that the method also includes:

[0093] Obtain the board shapes of eucalyptus wood, including eucalyptus thick boards and eucalyptus thin boards;

[0094] The process of secondary steaming operation was adjusted based on the shape of the rose eucalyptus wood panels.

[0095] It should be noted that in this embodiment, since the above embodiment describes the scenario where the target type is rose eucalyptus wood, steaming is required. However, the process of steaming is different for different types of rose eucalyptus wood, and the corresponding temperature adjustment is also different. Rose eucalyptus thick boards need to be steamed twice, while rose eucalyptus thin boards do not need to be steamed a second time to avoid internal cracking.

[0096] It is worth mentioning that the method also includes:

[0097] For ash wood, dehumidification operations are carried out based on dehumidification parameters and temperature regulation time parameters;

[0098] When the drying time exceeds the preset number of days, the kiln temperature is monitored in real time. When the kiln temperature stabilizes at the standard temperature for ash wood, the current drying is output as "standard achieved".

[0099] It should be noted that, in this embodiment, since the result of temperature control is that the drying operation meets the standards, the degree of compliance varies depending on the type of wood. For ash wood, such as European ash, during the drying process, dehumidification can be carried out based on dehumidification parameters and temperature control duration parameters. After the drying time exceeds the preset number of days, the kiln temperature can be monitored to ensure that the kiln temperature stabilizes at the standard temperature for ash wood, at which point the output "drying has met the standards" is displayed. See Table 1 for details.

[0100] Table 1. Detailed List of European White Wax Drying Process

[0101]

[0102] Figure 2 A block diagram of a kiln temperature curve control system for wood drying according to the present invention is shown.

[0103] like Figure 2 As shown, this invention discloses a kiln temperature curve control system for wood drying, including a memory and a processor. The memory includes a program for controlling the temperature curve of a wood drying kiln. When the processor executes the program for controlling the temperature curve of a wood drying kiln, it performs the following steps:

[0104] Obtain the wood parameters of the wood to be dried, wherein the wood parameters include the wood type;

[0105] Based on the wood type, basic parameters are obtained, including kiln start-up temperature, temperature adjustment parameters per unit time, temperature adjustment duration parameters, and moisture removal parameters.

[0106] During the drying process of the wood to be dried, the current drying parameters are obtained, including the kiln temperature and the moisture content of the wood.

[0107] The kiln temperature curve is adjusted based on the drying parameters and the basic parameters, including temperature recognition and adjustment, humidity recognition and adjustment, and temperature adjustment time adjustment.

[0108] It should be noted that, in this embodiment, the temperature control curves corresponding to different wood types are different. Therefore, it is first necessary to obtain the wood parameters of the wood to be dried. Accordingly, the wood harness includes the wood type, so that the basic parameters can be obtained based on the wood type. The basic parameters are the kiln start temperature, unit time temperature adjustment parameters (e.g., the temperature rise value and the temperature drop value per unit time), temperature adjustment duration parameters (e.g., the duration of heating, holding, or cooling), and moisture removal parameters corresponding to the current type of wood during drying. The moisture removal parameters can be compared with the moisture content detected in the wood. Furthermore, during the drying process of the wood to be dried... During the drying process, drying parameters need to be acquired in real time. These parameters include kiln temperature and wood moisture content. Specifically, different sensors are used to acquire the corresponding parameters. Then, during the drying process, the drying parameters are adjusted one by one in combination with the basic parameters. For example, the kiln temperature is controlled by combining the kiln start-up temperature or the temperature adjustment parameter per unit time. Similarly, when controlling the moisture content, the moisture removal parameter can be compared with the wood moisture content, and the temperature can be used for adjustment. The temperature adjustment time is also controlled based on the temperature parameter. Therefore, this application specifically describes how the kiln temperature curve is controlled during wood drying.

[0109] According to an embodiment of the present invention, obtaining the wood parameters of the wood to be dried specifically includes:

[0110] Obtain the initial wood type by retrieving the type option input from the user;

[0111] Image data of the wood to be dried is acquired using a preset image acquisition device, and the wood comparison type is obtained by image data analysis based on the image data.

[0112] The initial wood type is compared with the comparison wood type. If the comparison is consistent, the wood type is output based on the comparison result. If the comparison is inconsistent, the wood type is obtained from the user's feedback data.

[0113] It should be noted that, specifically in this embodiment, since the basic parameters of different types of wood differ, it is necessary to identify the wood to ensure targeted processing based on different types of wood during data processing. This ensures the safety and stability of the data in the initial stage. If the wood type is determined directly by human input, errors in human input can cause irreparable losses. Alternatively, if the wood type is determined directly through image data analysis, misjudgments may still occur due to the error tolerance of the model. Therefore, this application proposes a dual-mode mechanism combining human input and image data analysis to ensure the accuracy of wood type identification. Specifically… The initial wood type is obtained by acquiring the type option input from the user terminal; image data of the wood to be dried is acquired based on a preset image acquisition device, and image data analysis is performed on the image data to obtain a comparative wood type; the initial wood type is compared with the comparative wood type, wherein if the comparison is consistent, the wood type is output based on the comparison result; if the comparison is inconsistent, the wood type is obtained by acquiring feedback data from the user terminal. The consistency indicates that the type option input by the user terminal is correct, while the inconsistency may be due to an error in the human input option or an error in the image data analysis judgment, so human confirmation is required to ensure the accuracy of the wood type.

[0114] According to an embodiment of the present invention, obtaining basic parameters based on the wood type specifically includes:

[0115] The wood to be dried is identified based on the wood type, wherein the wood to be dried includes at least ash wood and eucalyptus wood;

[0116] Based on different types of wood, corresponding basic parameters are obtained, wherein the basic parameters for each type of wood are obtained based on the setting parameters input by the user, and / or the basic parameters are obtained by matching the wood type with a preset parameter database;

[0117] When simultaneously acquiring user-input settings and matching based on a parameter database, the corresponding parameter results are fused to obtain the corresponding basic parameters.

[0118] It should be noted that, in this embodiment, the wood to be dried includes at least ash wood and eucalyptus wood. Specifically, ash wood includes, for example, European ash, American ash thick boards, and American ash thin boards, while eucalyptus wood includes rose eucalyptus. Specifically, different types of wood have different basic parameters. When obtaining the basic parameters, the basic parameters corresponding to each type of wood can be obtained through the setting parameters input by the user terminal, and / or the basic parameters can be obtained by matching the wood type with a preset parameter database. That is, the corresponding basic parameters can be obtained based on the setting parameters input by the user terminal. In actual application, the setting parameters can be simultaneously stored in the wood parameters. Alternatively, type matching can be performed based on the wood type and a pre-set parameter database, and the matched data can be used as the basic parameters. Alternatively, the setting parameters input by the user terminal and the matching based on the parameter database can be obtained simultaneously. In this case, data fusion is required. That is, the corresponding basic parameters may overlap or be missing. When there is overlap, the setting parameters input by the user terminal take precedence, and the overlapping data matched in the database are deleted.

[0119] According to an embodiment of the present invention, obtaining the current drying parameters specifically includes:

[0120] During the drying process of the wood to be dried, the drying parameters are acquired based on a set of sensors, wherein,

[0121] The temperature of the kiln is obtained based on a temperature sensor; and

[0122] The moisture content of the wood is obtained based on a humidity sensor.

[0123] It should be noted that, in this embodiment, during drying, the drying parameters inside the kiln need to be obtained based on a sensor group. The sensor group includes at least a temperature sensor and a humidity sensor. Specifically, the temperature sensor can be used to obtain the kiln temperature during drying, and the humidity sensor can be used to obtain the moisture content of the wood during drying.

[0124] According to an embodiment of the present invention, the step of adjusting the kiln temperature curve based on the drying parameters and the basic parameters specifically includes:

[0125] The kiln temperature is adjusted based on the kiln start-up temperature, and the kiln temperature is adjusted by the unit time temperature adjustment parameter.

[0126] The moisture content of the wood can be adjusted based on the moisture removal parameters. Specifically, this can be achieved by controlling the temperature and / or the duration of temperature adjustment.

[0127] It should be noted that, in this embodiment, specifically, the kiln temperature is adjusted based on the kiln starting temperature. This is achieved by obtaining the kiln starting temperature corresponding to the wood to be dried, and then raising the kiln temperature to the corresponding starting temperature for drying. The temperature adjustment value per unit time is then controlled according to the different types of wood. For example, when drying European ash, the corresponding temperature adjustment value is an increase of 1°C. However, when drying rose eucalyptus, which involves two stages, the corresponding temperature adjustment value per unit time includes maintaining the temperature constant and increasing it by 1°C. The unit time corresponds to "1 hour". When controlling the moisture content, the moisture content can be adjusted based on the moisture content of the wood and the moisture removal parameters. Specifically, this can be achieved by adjusting the temperature and / or the duration of temperature adjustment. For example, for thick American ash boards, the moisture removal rate is kept constant at "80%" for the first three days of drying. Then, the moisture removal rate is gradually reduced, and the moisture removal is turned off every "12 hours". This means that the moisture removal rate is still "80%" on the fourth and fifth days. After two "12-hour" periods, the moisture removal rate drops to "70%" on the sixth and seventh days. At the same time, the kiln temperature rises synchronously during the process of decreasing moisture removal, increasing by 1°C per day.

[0128] According to an embodiment of the present invention, the method further includes:

[0129] The target type is identified based on the wood type, wherein the target type includes rose eucalyptus wood;

[0130] Based on the target type, the preset steam spraying device is controlled to perform steam spraying treatment based on the corresponding kiln temperature, combined with the temperature adjustment time parameter.

[0131] It should be noted that in this embodiment, the ash wood described in the above embodiments includes, for example, European ash, thick American ash planks, and thin American ash planks, while eucalyptus wood includes rose eucalyptus. Specifically, for rose eucalyptus wood, steam spraying treatment is required. The steam spraying treatment is performed based on the corresponding kiln temperature by controlling a preset steam spraying device in conjunction with temperature and duration parameters. The first kiln heating is initiated at 50°C, held for 4 hours, and then steam spraying begins until the temperature drops to 55°C. The kiln is then heated to 58°C for a second steam spraying treatment until the temperature drops to 63°C.

[0132] It is worth mentioning that the method also includes:

[0133] Based on the combined adjustment of kiln temperature and wood moisture using dry-bulb and wet-bulb methods;

[0134] Maintain the temperature difference between the dry bulb and the wet bulb within the target temperature range, and control the kiln temperature to rise to the kiln start-up temperature.

[0135] It should be noted that, in this embodiment, when adjusting the temperature and wood moisture content, the application can use dry bulbs and wet bulbs for adjustment. Dry bulbs can perform dehumidification, and wet bulbs can work in conjunction with dry bulbs for temperature control. Since it is necessary to ensure that dry bulbs and wet bulbs can act on temperature and humidity during the heating process, it is necessary to ensure that the temperature difference between the dry bulbs and the wet bulbs is limited to the target temperature difference range during the process of the kiln temperature rising to the kiln start-up temperature.

[0136] It is worth mentioning that the method also includes:

[0137] Obtain the board shapes of eucalyptus wood, including eucalyptus thick boards and eucalyptus thin boards;

[0138] The process of secondary steaming operation was adjusted based on the shape of the rose eucalyptus wood panels.

[0139] It should be noted that in this embodiment, since the above embodiment describes the scenario where the target type is rose eucalyptus wood, steaming is required. However, the process of steaming is different for different types of rose eucalyptus wood, and the corresponding temperature adjustment is also different. Rose eucalyptus thick boards need to be steamed twice, while rose eucalyptus thin boards do not need to be steamed a second time to avoid internal cracking.

[0140] It is worth mentioning that the method also includes:

[0141] For ash wood, dehumidification operations are carried out based on dehumidification parameters and temperature regulation time parameters;

[0142] When the drying time exceeds the preset number of days, the kiln temperature is monitored in real time. When the kiln temperature stabilizes at the standard temperature for ash wood, the current drying is output as "standard achieved".

[0143] It should be noted that, in this embodiment, since the result of temperature control is that the drying operation meets the standards, the degree of compliance varies depending on the type of wood. For ash wood, such as European ash, during the drying process, dehumidification can be carried out based on dehumidification parameters and temperature control duration parameters. After the drying time exceeds the preset number of days, the kiln temperature can be monitored to ensure that the kiln temperature stabilizes at the standard temperature for ash wood, at which point the output "drying has met the standards" is displayed. See Table 1 for details.

[0144] Table 1. Detailed List of European White Wax Drying Process

[0145]

[0146]

[0147] A third aspect of the present invention provides a computer-readable storage medium comprising a program for controlling the temperature curve of a kiln for drying wood. When the program for controlling the temperature curve of a kiln for drying wood is executed by a processor, it implements the steps of the method for controlling the temperature curve of a kiln for drying wood as described in any of the preceding claims.

[0148] This invention discloses a method, system, and readable storage medium for controlling the temperature curve of a kiln for drying wood. It can control the temperature and humidity in real time according to different types of wood to be dried, and can adjust the temperature as needed to achieve different drying effects for different types of wood, so as to ensure successful drying of wood and reduce damage rate.

[0149] In the several embodiments provided in this application, it should be understood that the disclosed devices and methods can be implemented in other ways. The device embodiments described above are merely illustrative. For example, the division of units is only a logical functional division, and in actual implementation, there may be other division methods, such as: multiple units or components can be combined, or integrated into another system, or some features can be ignored or not executed. In addition, the coupling, direct coupling, or communication connection between the various components shown or discussed can be through some interfaces, and the indirect coupling or communication connection between devices or units can be electrical, mechanical, or other forms.

[0150] The units described above as separate components may or may not be physically separate. The components shown as units may or may not be physical units. They may be located in one place or distributed across multiple network units. Some or all of the units may be selected to achieve the purpose of this embodiment according to actual needs.

[0151] In addition, in the various embodiments of the present invention, each functional unit can be integrated into one processing unit, or each unit can be a separate unit, or two or more units can be integrated into one unit; the integrated unit can be implemented in hardware or in the form of hardware plus software functional units.

[0152] Those skilled in the art will understand that all or part of the steps of the above method embodiments can be implemented by hardware related to program instructions. The aforementioned program can be stored in a computer-readable storage medium. When the program is executed, it performs the steps of the above method embodiments. The aforementioned storage medium includes various media capable of storing program code, such as mobile storage devices, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0153] Alternatively, if the integrated units of this invention are implemented as software functional modules and sold or used as independent products, they can also be stored in a computer-readable storage medium. Based on this understanding, the technical solutions of the embodiments of this invention, or the parts that contribute to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the methods described in the various embodiments of this invention. The aforementioned storage medium includes various media capable of storing program code, such as mobile storage devices, ROM, RAM, magnetic disks, or optical disks.

Claims

1. A method for controlling the temperature curve of a kiln for wood drying, characterized in that, Includes the following steps: Obtain the wood parameters of the wood to be dried, wherein the wood parameters include the wood type, and the wood to be dried includes at least ash wood and eucalyptus wood; Based on the wood type, basic parameters are obtained, including kiln start-up temperature, temperature adjustment parameters per unit time, temperature adjustment duration parameters, and moisture removal parameters. During the drying process of the wood to be dried, the current drying parameters are obtained, including the kiln temperature and the moisture content of the wood. The kiln temperature curve is adjusted based on the drying parameters and the basic parameters, including temperature identification and adjustment, moisture identification and adjustment, and temperature adjustment time adjustment. Specifically, this includes: controlling the kiln temperature based on the kiln start-up temperature, and controlling the kiln temperature adjustment value per unit time based on the unit time temperature adjustment parameter; adjusting the moisture content based on the wood moisture content and the dehumidification parameter, specifically by adjusting the temperature and / or the temperature adjustment time; and The target type is identified based on the wood type, wherein the target type includes eucalyptus wood; a preset steam spraying device is controlled based on the target type, combined with temperature and duration parameters, to perform steam spraying treatment based on the corresponding kiln temperature; wherein the eucalyptus wood board types include thick eucalyptus boards and thin eucalyptus boards, and the progress of the secondary steam spraying operation is adjusted based on the eucalyptus wood board type; and For ash wood, dehumidification is performed based on dehumidification parameters and temperature control time parameters; when the drying time exceeds the preset number of days, the kiln temperature is monitored in real time; when the kiln temperature stabilizes at the standard temperature for ash wood, the current drying process is output as "drying has met the standard". The kiln temperature and wood moisture are adjusted by using both dry and wet bulb methods; the temperature difference between the dry and wet bulbs is kept within the target range, and the kiln temperature is controlled to rise to the kiln start-up temperature.

2. The method for controlling the temperature curve of a kiln for wood drying according to claim 1, characterized in that, The process of obtaining the wood parameters of the wood to be dried specifically includes: Obtain the initial wood type by retrieving the type option input from the user; Image data of the wood to be dried is acquired using a preset image acquisition device, and the wood comparison type is obtained by image data analysis based on the image data. The initial wood type is compared with the comparison wood type. If the comparison is consistent, the wood type is output based on the comparison result. If the comparison is inconsistent, the wood type is obtained from the user's feedback data.

3. The method for controlling the temperature curve of a kiln for wood drying according to claim 2, characterized in that, The acquisition of basic parameters based on the wood type specifically includes: Identify the wood to be dried based on the wood type; Based on different types of wood, corresponding basic parameters are obtained, wherein the basic parameters for each type of wood are obtained based on the setting parameters input by the user, and / or the basic parameters are obtained by matching the wood type with a preset parameter database; When simultaneously acquiring user-input settings and matching based on a parameter database, the corresponding parameter results are fused to obtain the corresponding basic parameters.

4. The method for controlling the temperature curve of a kiln for wood drying according to claim 3, characterized in that, The process of obtaining the current drying parameters specifically includes: During the drying process of the wood to be dried, the drying parameters are acquired based on a set of sensors, wherein, The temperature of the kiln is obtained based on a temperature sensor; and The moisture content of the wood is obtained based on a humidity sensor.

5. A kiln temperature curve control system for wood drying, characterized in that, The system includes a memory and a processor. The memory contains a program for controlling the temperature curve of a wood drying kiln. When the processor executes the program for controlling the temperature curve of a wood drying kiln, it performs the following steps: Obtain the wood parameters of the wood to be dried, wherein the wood parameters include the wood type, and the wood to be dried includes at least ash wood and eucalyptus wood; Based on the wood type, basic parameters are obtained, including kiln start-up temperature, temperature adjustment parameters per unit time, temperature adjustment duration parameters, and moisture removal parameters. During the drying process of the wood to be dried, the current drying parameters are obtained, including the kiln temperature and the moisture content of the wood. The kiln temperature curve is adjusted based on the drying parameters and the basic parameters, including temperature identification and adjustment, moisture identification and adjustment, and temperature adjustment time adjustment. Specifically, this includes: controlling the kiln temperature based on the kiln start-up temperature, and controlling the kiln temperature adjustment value per unit time based on the unit time temperature adjustment parameter; adjusting the moisture content based on the wood moisture content and the dehumidification parameter, specifically by adjusting the temperature and / or the temperature adjustment time; and The target type is identified based on the wood type, wherein the target type includes eucalyptus wood; a preset steam spraying device is controlled based on the target type, combined with temperature and duration parameters, to perform steam spraying treatment based on the corresponding kiln temperature; wherein the eucalyptus wood board types include thick eucalyptus boards and thin eucalyptus boards, and the progress of the secondary steam spraying operation is adjusted based on the eucalyptus wood board type; and For ash wood, dehumidification is performed based on dehumidification parameters and temperature control time parameters; when the drying time exceeds the preset number of days, the kiln temperature is monitored in real time; when the kiln temperature stabilizes at the standard temperature for ash wood, the current drying process is output as "drying has met the standard". The kiln temperature and wood moisture are adjusted by using both dry and wet bulb methods; the temperature difference between the dry and wet bulbs is kept within the target range, and the kiln temperature is controlled to rise to the kiln start-up temperature.

6. The kiln temperature curve control system for wood drying according to claim 5, characterized in that, The process of obtaining the wood parameters of the wood to be dried specifically includes: Obtain the initial wood type by retrieving the type option input from the user; Image data of the wood to be dried is acquired using a preset image acquisition device, and the wood comparison type is obtained by image data analysis based on the image data. The initial wood type is compared with the comparison wood type. If the comparison is consistent, the wood type is output based on the comparison result. If the comparison is inconsistent, the wood type is obtained from the user's feedback data.

7. The kiln temperature curve control system for wood drying according to claim 6, characterized in that, The acquisition of basic parameters based on the wood type specifically includes: Identify the wood to be dried based on the wood type; Based on different types of wood, corresponding basic parameters are obtained, wherein the basic parameters for each type of wood are obtained based on the setting parameters input by the user, and / or the basic parameters are obtained by matching the wood type with a preset parameter database; When simultaneously acquiring user-input settings and matching based on a parameter database, the corresponding parameter results are fused to obtain the corresponding basic parameters.

8. A computer-readable storage medium, characterized in that, The computer-readable storage medium includes a program for controlling the temperature curve of a kiln for drying wood. When the program is executed by a processor, it implements the steps of a method for controlling the temperature curve of a kiln for drying wood as described in any one of claims 1 to 4.

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