Multi-channel temperature regulation control device and multi-target temperature control method thereof

Abstract

This invention relates to a multi-channel temperature regulation and control device and its multi-target temperature control method, belonging to the field of temperature control technology. It solves the problem in existing temperature control technologies where temperature lag leads to large temperature fluctuations within the cabin, significant axial temperature differences along cabin sections, and large temperature gradients between sections. This invention uses four sets of three-phase thyristors to independently control four sets of heating films. By switching between different heating film sets, the heating power of a single cabin section can be changed, affecting the heating power of other sections. This limits the temperature of areas that heat up too quickly, maintaining temperature consistency across the three cabin sections. This invention achieves temperature control of aircraft cabin sections while eliminating stepped temperature differences.

Description

Technical Field

[0001] This invention relates to the field of temperature control technology, and in particular to a multi-channel temperature regulation and control device and a multi-target temperature control method thereof. Background Technology

[0002] With the advancement of information technology in modern society, the signal environment is becoming increasingly dense and complex, making multi-channel digital signal processing units increasingly popular. Temperature control in temperature regulation equipment is becoming more precise, demanding higher standards from hardware modules. For aircraft compartments with multiple compartments, temperature control is required for each area.

[0003] The most important aspects of temperature control equipment are collecting data on the internal temperature of the chamber and the surface temperature of the heating film, and adjusting and controlling the temperature of different sections to achieve the required temperature targets. However, changes in the external environment and the lag in temperature regulation can affect the temperature control, resulting in unsatisfactory temperature values ​​and large temperature fluctuations.

[0004] Because of the different heat dissipation environments and varying degrees of heat loss between different compartments, the temperature difference between them is large, which increases the difficulty of temperature control and leads to inaccurate temperature control. As a result, the temperature of the compartments cannot be kept within a certain range according to environmental changes.

[0005] When using traditional control methods for temperature regulation, the lag in temperature control leads to large fluctuations in the cabin temperature, and large temperature gradients are likely to occur along the axial direction of the cabin section, resulting in large temperature differences between different cabin sections, which cannot meet the multi-objective requirements of temperature regulation. Summary of the Invention

[0006] Based on the above analysis, the present invention aims to provide a multi-channel temperature regulation and control device and a multi-target temperature control method to solve the problem that when adjusting the temperature using existing temperature regulation methods, the temperature lag leads to large temperature fluctuations inside the cabin, and the temperature difference along the axial direction of the cabin section is large, which easily results in a large temperature gradient between different cabin sections.

[0007] The objective of this invention is mainly achieved through the following technical solutions:

[0008] A multi-channel temperature regulation and control device includes: a temperature monitoring system and a temperature control system; the temperature control system includes: a controller, an X group of heating films, a Y group of heating films and a Z group of heating films;

[0009] The X-group heating film is disposed inside the first compartment for heating the first compartment; the Y-group heating film is disposed inside the second compartment for heating the second compartment; and the Z-group heating film is disposed inside the first compartment for heating the third compartment.

[0010] The controller performs staggered control on the X group heating film, Y group heating film and Z group heating film.

[0011] Further, the X group of heating films includes: heating film X1, heating film X2, heating film X3 and heating film X4; the Y group of heating films includes: heating film Y1, heating film Y2, heating film Y3 and heating film Y4; the Z group of heating films includes: heating film Z1, heating film Z2, heating film Z3 and heating film Z4.

[0012] Furthermore, the controller includes: a first three-phase thyristor, a second three-phase thyristor, a third three-phase thyristor, and a fourth three-phase thyristor.

[0013] Furthermore, the first three-phase thyristor is used to synchronously control the synchronous heating of the first group of heating films consisting of heating film X1, heating film Y1 and heating film Z1;

[0014] The second three-phase thyristor is used to synchronously control the synchronous heating of the second group of heating films consisting of heating film X2, heating film Y2 and heating film Z2;

[0015] The third three-phase thyristor is used to synchronously control the synchronous heating of the third group of heating films consisting of heating film X3, heating film Y3 and heating film Z3.

[0016] The fourth three-phase thyristor is used to synchronously control the synchronous heating of the third group of heating films, which consists of heating film X4, heating film Y4 and heating film Z4.

[0017] Furthermore, the temperature monitoring system includes multiple temperature sensors; the temperature sensors are used to monitor temperature changes in the internal environment of the first compartment, the second compartment, and the third compartment.

[0018] Furthermore, the power of heating film X4 is less than that of heating film X1; the power of heating film Y4 is less than that of heating film Y2; and the power of heating film Z4 is less than that of heating film X3.

[0019] A multi-target temperature control method employs a multi-channel temperature regulation and control device for multi-target temperature control; it includes the following steps:

[0020] Step S1: Set the temperature control range to n℃≤Tc≤m℃; detect the cabin temperature Tc using a temperature sensor;

[0021] Step S2: When the temperature inside the cabin exceeds m℃, the temperature control system is shut down;

[0022] The temperature control system is activated when the cabin temperature is below n℃.

[0023] When the temperature inside the cabin rises to n℃≤Tc≤m℃, maintain the temperature control status.

[0024] Step S3: When the temperature inside the cabin rises to m℃, the temperature control system shuts down again.

[0025] Furthermore, the cabin temperature Tc includes: the internal ambient temperature T1 of the first cabin, the internal ambient temperature T2 of the second cabin, and the internal ambient temperature T3 of the third cabin.

[0026] Furthermore, when the temperature of any compartment in T1, T2, or T3 is lower than n℃, the temperature control system can be activated; when the temperature of any compartment is higher than m℃, the temperature control system can be deactivated.

[0027] Furthermore, in step S2, the process of controlling the opening and closing of the temperature control system is as follows:

[0028] Step S21: Determine whether the cabin temperature Tc is greater than m℃. If so, keep the temperature control system off. Otherwise, determine whether the cabin temperature Tc is less than n℃.

[0029] Step S22: Determine whether the cabin temperature Tc is less than n℃. If so, start the temperature control system to heat the cabin environment; otherwise, maintain the current state.

[0030] Step S23: When the cabin temperature Tc rises to n℃≤Tc≤m℃, if the temperature control system is turned on, it remains in the on state until Tc>m℃ and then turns off; if the temperature control system is turned off, it remains in the off state until the temperature drops to Tc<n℃, triggering the temperature control system to turn on.

[0031] Furthermore, in steps S22-S23, multiple heating films are controlled to operate by a three-phase thyristor. The control process is as follows:

[0032] Step S201: In the initial state, the first three-phase thyristor, the second three-phase thyristor, and the third three-phase thyristor control the first heating film, the second heating film, and the third heating film to keep the cabin environment warm.

[0033] Step S202: Compare the temperatures of the first compartment T1, the second compartment T2, and the third compartment T3. When the temperature difference between the highest and lowest temperatures Δ≥3℃, activate the temperature difference adjustment mode.

[0034] Step S203: When the temperature difference Δ between the highest and lowest temperatures is ≤3℃, switch to the initial state.

[0035] Furthermore, in step S202, under the temperature difference regulation mode, when the temperature of the first compartment is too high, the fourth three-phase thyristor is activated and the first three-phase thyristor is deactivated; when the temperature of the second compartment is too high, the fourth three-phase thyristor is activated and the second three-phase thyristor is deactivated; when the temperature of the third compartment is too high, the fourth three-phase thyristor is activated and the third three-phase thyristor is deactivated.

[0036] The technical solution of this invention can achieve at least one of the following effects:

[0037] 1) This invention applies a multi-channel mode to temperature regulation and control. The temperature regulation device hardware is divided into multiple relatively independent hardware modules. According to different needs, the information data of the modules can be controlled by multiple channels. The information data of different channels can be selected for processing in different time periods. The temperature can be maintained at a high precision level, and the channels can be used flexibly and accurately to achieve the temperature regulation target requirements.

[0038] 2) By switching different heating film groups for heating, the present invention can change the heating power of a single compartment and affect the heating power of other compartments, thereby limiting the temperature of areas that heat up too quickly and maintaining the temperature consistency of the three compartments.

[0039] 3) This invention employs multi-channel processing in the temperature regulation and control device, increasing the number of three-phase thyristors from one to four. Each group of heating films is independently controlled, meaning each group is controlled by a separate three-phase thyristor. This achieves more accurate temperature control of the heating films, and reduces the number of heating film sheets connected to each three-phase thyristor, further improving temperature regulation and control precision. Through this multi-channel processing, the three-phase thyristors can precisely control each group of heating films, controlling which group to power on and when to stop heating based on temperature feedback. This eliminates temperature differences between different sections while achieving temperature range control, avoiding stepped temperature variations and contributing to maintaining overall temperature consistency across the aircraft.

[0040] In this invention, the above-described technical solutions can be combined with each other to achieve more preferred combinations. Other features and advantages of this invention will be set forth in the following description, and some advantages may become apparent from the description or be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained from what is particularly pointed out in the description and drawings. Attached Figure Description

[0041] The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Throughout the drawings, the same reference numerals denote the same parts.

[0042] Figure 1 This is a schematic diagram of the arrangement of the multi-channel temperature regulation and control device of the present invention;

[0043] Figure 2 This is a schematic diagram of the group control strategy of the multi-channel temperature regulation and control device of the present invention;

[0044] Figure 3 This is a schematic diagram of the heating power regulation of the multi-channel temperature regulation and control device of the present invention;

[0045] Figure 4 This is a schematic diagram showing the control relationship between the three-phase thyristor and each group of heating films;

[0046] Figure 5 This is a control flowchart of the multi-channel temperature regulation and control device of the present invention;

[0047] Figure 6 This is a flowchart illustrating the control modes of the three-phase thyristor for each group of heating films.

[0048] Figure label:

[0049] 1-First compartment; 2-Second compartment; 3-Third compartment; 4-X group heating film; 5-Y group heating film; 6-Z group heating film. Detailed Implementation

[0050] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which constitute a part of the present invention and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0051] Example 1

[0052] A specific embodiment of the present invention discloses a multi-channel temperature regulation and control device, comprising: a temperature monitoring system and a temperature control system; the temperature monitoring system is used to monitor the internal temperature of the chamber, and the temperature control system is used to regulate the internal temperature of the chamber. The internal cavity is divided into three parts: a first section 1, a second section 2, and a third section 3. Each section is equipped with a heating film.

[0053] like Figure 1 As shown, the temperature control system includes: a controller, an X-group heating film 4, a Y-group heating film 5, and a Z-group heating film 6.

[0054] Specifically, the X-group heating film 4 is disposed inside the first compartment 1 for heating the first compartment 1; the Y-group heating film 5 is disposed inside the second compartment 2 for heating the second compartment 2; the Z-group heating film 6 is disposed inside the third compartment 3 for heating the third compartment 3; and the controller performs interleaved control on the X-group heating film 4, the Y-group heating film 5, and the Z-group heating film 6.

[0055] Furthermore, such as Figure 2As shown; the X group heating film 4 includes: heating film X1, heating film X2, heating film X3 and heating film X4; the Y group heating film 5 includes: heating film Y1, heating film Y2, heating film Y3 and heating film Y4; the Z group heating film 6 includes: heating film Z1, heating film Z2, heating film Z3 and heating film Z4;

[0056] In one specific embodiment of the present invention, the temperature regulating device is cylindrical. Specifically, the four heating films of the X group heating film 4 are evenly distributed circumferentially on the temperature regulating device inside the first compartment 1, the four heating films of the Y group heating film 5 are evenly distributed circumferentially on the temperature regulating device inside the second compartment 2, and the four heating films of the Z group heating film 6 are evenly distributed circumferentially on the temperature regulating device in the third compartment 3.

[0057] Furthermore, the controller includes: a first three-phase thyristor, a second three-phase thyristor, a third three-phase thyristor, and a fourth three-phase thyristor.

[0058] To meet the temperature requirements, the control device for the heating film was multi-channeled, increasing the number of three-phase thyristors from one to four. The corresponding heating films X1, Y1, and Z1 from groups X, Y, and Z form the improved group 1; X2, Y2, and Z2 form the improved group 2; X3, Y3, and Z3 form the improved group 3; and X4, Y4, and Z4 form the improved group 4. Each heating film in groups 1, 2, 3, and 4 is then connected to the three single-phase terminals of each three-phase thyristor. Each group of heating films is controlled independently. Figure 2-4 As shown.

[0059] This invention achieves more accurate temperature control of the heating film by using one three-phase thyristor to control each heating film. Furthermore, the number of heating film sheets connected to each three-phase thyristor is reduced, which improves the accuracy of temperature regulation and control, resulting in smoother temperature fluctuations and temperature regulation and control that better meets the temperature requirements.

[0060] Specifically, such as Figure 2 , Figure 4 As shown, the first three-phase thyristor is used to synchronously control the synchronous heating of the first group of heating films consisting of heating film X1, heating film Y1 and heating film Z1;

[0061] The second three-phase thyristor is used to synchronously control the synchronous heating of the second group of heating films consisting of heating film X2, heating film Y2 and heating film Z2;

[0062] The third three-phase thyristor is used to synchronously control the synchronous heating of the third group of heating films consisting of heating film X3, heating film Y3 and heating film Z3.

[0063] The fourth three-phase thyristor is used to synchronously control the heating of the third group of heating films consisting of heating film X4, heating film Y4 and heating film Z4.

[0064] like Figure 2 As shown, in one specific embodiment of the present invention, the temperature control device has 12 heating films, grouped into groups X, Y, and Z according to the compartment sections, with 4 heating films in each group; and grouped into four groups according to independent control, namely group 1, group 2, group 3, and group 4. The four groups are independently controlled by four three-phase thyristors, as shown. Figure 2 As shown.

[0065] like Figure 4 As shown, the heating films are powered by a three-phase four-wire system. The first group of three films, heating films X1, Y1, and Z1, are each powered by one phase of the first three-phase thyristor, sharing the neutral line N. The second group of three films, heating films X2, Y2, and Z2, are each powered by one phase of the second three-phase thyristor, sharing the neutral line N. The third group of three films, heating films X3, Y3, and Z3, are each powered by one phase of the second three-phase thyristor, sharing the neutral line N. The fourth group of three films, heating films X4, Y4, and Z4, are each powered by one phase of the fourth three-phase thyristor, sharing the neutral line N.

[0066] Existing temperature control devices employ a uniform control mode. When three sets of heating films are controlled simultaneously, the temperature becomes uneven due to differences in heat capacity and heat dissipation coefficient at each location, resulting in a significant temperature difference from left to right. This uniform control of the three heating films also suffers from poor temperature control accuracy, large temperature fluctuations, and significant temperature differences. Therefore, this invention uses multiple heating films with different heating powers. By switching between different heating films, overall heat preservation and localized temperature regulation can be achieved.

[0067] Furthermore, the temperature regulation and control device of the present invention is provided with four sets of heating films. In the initial state, the fourth set of heating films is closed. When the local temperature is too high and temperature difference needs to be adjusted, the heating film group containing the heating film with the highest power in the compartment with the highest temperature is closed, while the fourth set of heating films is turned on. That is, by replacing the heating film with the highest power in the first, second, or third set of heating films with the heating film with the lower power in the fourth set, the heat preservation power of the heating film in the compartment with the higher temperature is reduced, thereby making the ambient temperature in the three compartments more uniform.

[0068] Furthermore, the power of heating film X4 is less than that of heating film X1; the power of heating film Y4 is less than that of heating film Y2; and the power of heating film Z4 is less than that of heating film X3. In other words, the heating power of the fourth group of heating films is lower than that of the first three groups. By replacing the high-power heating films in the first three groups with the fourth group of heating films, independent localized cooling of a single compartment can be achieved, enabling localized cooling without lowering the overall temperature.

[0069] In this invention, temperature control is achieved by controlling the heating power of the heating film. The instantaneous power of the heating film is the square of the voltage divided by the resistance of the heating film. By setting different resistances for individual heating films, different heating films can achieve different power levels.

[0070] In one specific embodiment of the present invention, a is set to 1.2 to 1.5b, that is, a > b, where a and b are numerical values.

[0071] like Figure 3 As shown, the heating power of each heating film is:

[0072] The power of heating film X1 is aW, the power of heating film X2 is bW, the power of heating film X3 is bW; the power of heating film X4 is bW.

[0073] The power of heating film Y1 is bW, the power of heating film Y2 is aW, the power of heating film Y3 is bW, and the power of heating film Y4 is bW.

[0074] The power of heating film Z1 is bW; the power of heating film Z2 is bW; the power of heating film Z3 is aW; and the power of heating film Z4 is bW. See Table 1.

[0075] Table 1 - Heating film power and its control relationship

[0076]

[0077] Furthermore, the temperature monitoring system includes multiple temperature sensors; these sensors are used to monitor temperature changes within the first compartment 1, the second compartment 2, and the third compartment 3. Additionally, each independent compartment is equipped with a temperature sensor, each heating film can independently control its heating power, and the temperature sensors can detect temperature changes within each compartment in real time.

[0078] Furthermore, the hardware of the temperature regulation and control device also includes: a chassis, an LCD screen, a cableless active access module, a digital tube, a panel switch, and a circuit board. Hardware devices that are the same as or similar to existing temperature control equipment will not be described in detail here, and will not affect the implementation of this invention.

[0079] During implementation: Due to the lag in temperature control and the resulting overall high temperature, large temperature fluctuations, and significant temperature differences between the front and rear sections of the equipment, the following measures were taken: First, the first, second, and third heating films were activated to ensure that the section temperature Tc was not lower than the preset value n℃. Under this premise, when the temperature of a certain section became too high, the fourth heating film was activated. The fourth heating film replaced the first, second, or third heating films. Since the heating power of heating film X1 of the first group, heating film Y2 of the second group, and heating film Z3 of the third group is higher than that of other heating films, the low-power heating film of the fourth group replaced the high-power heating films of the first, second, or third groups to achieve localized cooling of the high-temperature section.

[0080] Example 2

[0081] One specific embodiment of the present invention provides a multi-target temperature control method, which uses a multi-channel temperature regulation and control device to perform multi-target temperature control.

[0082] The control objective of the multi-objective temperature control method of the present invention is:

[0083] (1) The temperature range of the entire aircraft compartment is n℃-m℃; for example, n=10, m=20; the temperature range is 10℃~20℃.

[0084] (2) The difference between the highest and lowest temperatures at a local location within the control chamber is Δ≤k℃, for example, k=3; the difference between the highest and lowest temperatures at a local location is Δ≤3℃.

[0085] Specifically, the multi-objective temperature control method, such as Figure 5 As shown, it includes the following steps:

[0086] Step S1: Set the temperature control range to n℃≤Tc≤m℃; detect the cabin temperature Tc using a temperature sensor;

[0087] Step S2: When the temperature inside the cabin exceeds m℃, the temperature control system is shut down;

[0088] The temperature control system is activated when the cabin temperature is below n℃.

[0089] When the temperature inside the cabin rises to n℃≤Tc≤m℃, maintain the temperature control status.

[0090] Step S3: When the temperature inside the cabin rises to m℃, the temperature control system shuts down again.

[0091] In one specific embodiment of the present invention, the cabin temperature Tc includes: the internal ambient temperature T1 of the first cabin section 1, the internal ambient temperature T2 of the second cabin section 2, and the internal ambient temperature T3 of the third cabin section 3.

[0092] In one specific embodiment of the present invention, when the temperature of any compartment in T1, T2 or T3 is lower than n℃, the temperature control system can be activated; when the temperature of any compartment is higher than m℃, the temperature control system can be deactivated.

[0093] like Figure 5 As shown, the opening and closing process of the temperature control system in step S2 is as follows:

[0094] Step S21: Determine whether the cabin temperature Tc is greater than m℃. If so, keep the temperature control system off. Otherwise, determine whether the cabin temperature Tc is less than n℃.

[0095] Step S22: Determine whether the cabin temperature Tc is less than n℃. If so, start the temperature control system to heat the cabin environment; otherwise, maintain the current state.

[0096] Step S23: When the cabin temperature Tc rises to n℃≤Tc≤m℃, if the temperature control system is turned on, it remains in the on state until Tc>m℃ and then turns off; if the temperature control system is turned off, it remains in the off state until the temperature drops to Tc<n℃, triggering the temperature control system to turn on.

[0097] Furthermore, the duty cycle of the temperature control system is D. The duty cycle D is the heating time divided by the unit time (0≤D≤1). When D=0, the control system is turned off, and when D=1, the control system remains on.

[0098] When the initial temperature is greater than m℃, the system waits for the temperature to drop naturally to n℃ before entering the temperature control state. When the initial temperature is lower than n℃, the system heats at D=1. When the temperature rises above m℃, heating stops (D=0), and the system enters the temperature control state.

[0099] To improve control accuracy and reduce temperature differences, each heating film group is independently controlled based on its own temperature sensor to achieve temperature uniformity and reduce temperature differences. The goal of temperature control is that the temperature control range for each heating film group is n℃±m℃, and the maximum temperature difference under temperature control conditions does not exceed 3℃.

[0100] Furthermore, such as Figure 6 As shown, in step S2, the process of controlling multiple heating films by a three-phase thyristor is as follows:

[0101] Step S201: In the initial state, the first three-phase thyristor, the second three-phase thyristor, and the third three-phase thyristor control the first heating film, the second heating film, and the third heating film to keep the cabin environment warm.

[0102] Step S202: Compare the temperature T1 of the first compartment (1), the temperature T2 of the second compartment (2), and the temperature T3 of the third compartment (3). When the temperature difference Δ between the highest and lowest temperatures is ≥3℃, start the temperature difference adjustment mode.

[0103] Step S203: When the temperature difference Δ between the highest and lowest temperatures is ≤3℃, switch to the initial state.

[0104] Furthermore, such as Figure 6 As shown, in step S202, under the temperature difference adjustment mode:

[0105] Operating Condition 1: When the temperature of the first compartment 1 is too high, the fourth three-phase thyristor is activated, and the first three-phase thyristor is deactivated. Specifically, the first three-phase thyristor is deactivated, the second and third three-phase thyristors remain activated, and the fourth three-phase thyristor is activated. The temperature control of the compartment environment changes from being controlled by the first, second, and third heating films to being controlled by the second, third, and fourth heating films.

[0106] Operating Condition 2: When the temperature of the second compartment 2 is too high, the fourth three-phase thyristor switches from off to on, while the second three-phase thyristor is off. Specifically, the second three-phase thyristor is off, the second one-phase thyristor and the third three-phase thyristor remain on, and the fourth three-phase thyristor is on; the temperature control of the compartment environment changes from being controlled by the first, second, and third heating films to being controlled by the first, third, and fourth heating films.

[0107] Operating Condition 3: When the temperature of the third compartment 3 is too high, the fourth three-phase thyristor switches to the start state, and the third three-phase thyristor turns off. Specifically, the third three-phase thyristor turns off, the first and second three-phase thyristors remain on, and the fourth three-phase thyristor turns on. The temperature control of the compartment environment changes from the state controlled by the first, second, and third heating films to the state controlled by the first, second, and fourth heating films.

[0108] In one specific embodiment of the present invention, the power of heating film X1, heating film Y2, and heating film Z3 is greater than that of other heating films; specifically, the power value of heating film X1, heating film Y2, and heating film Z3 is aW, while that of the others is bW, where a > b.

[0109] 1) Operating Condition 1

[0110] For example, when the temperature of the first compartment 1 is too high, it is necessary to reduce the heating intensity of the heating film in the first compartment 1, while the heat preservation intensity of the second compartment 2 and the third compartment 3 remains unchanged; the first group of heating films is closed, the fourth group of heating films is opened, and the total power of the heating film in the first compartment 1 is less than the power of the heating film in the second compartment 2 and the third compartment 3, as shown in Table 2.

[0111] Table 2 - Control Status During Local Cooling of First Section 1

[0112]

[0113] At this time, the heating film X4 (power b) of the fourth group is used to replace the heating film X1 (power a) of the first group, so that the heating power of the heating film of the X group in the first compartment 1 is 3b, and the heating power of the second compartment 2 and the third compartment 3 is a+2b>3b. This can locally reduce the heating power of the first compartment 1 and make the temperature of the three compartments tend to be consistent.

[0114] 2) Working Condition Two

[0115] For example, when the temperature of the first compartment 1 is too high, it is necessary to reduce the heating intensity of the heating film in the first compartment 1, while the heat preservation intensity of the second compartment 2 and the third compartment 3 remains unchanged; the second group of heating films is closed, the fourth group of heating films is opened, and the total power of the heating film in the second compartment 2 is less than the power of the heating film in the first compartment 1 and the third compartment 3, as shown in Table 3.

[0116] Table 3 - Control Status During Local Cooling of Second Section 2

[0117]

[0118] At this time, the heating film Y4 (power b) of the fourth group is used to replace the heating film Y2 (power a) of the second group, so that the heating power of the Y group heating film of the second compartment 2 is 3b, and the heating power of the first compartment 1 and the third compartment 3 is a+2b>3b. This can locally reduce the heating power of the second compartment 2 and make the temperature of the three compartments tend to be consistent.

[0119] 3) For example, when the temperature of the third compartment 3 is too high, it is necessary to reduce the heating intensity of the heating film in the third compartment 3, while the heat preservation intensity of the first compartment 1 and the second compartment 2 remains unchanged; the third group of heating films is closed, the fourth group of heating films is opened, and the total power of the heating film in the third compartment 3 is less than the power of the heating film in the first compartment 1 and the second compartment 2; as shown in Table 4.

[0120] Table 4 - Control Status During Local Cooling of Section 3

[0121]

[0122] At this point, the heating film Z4 (power b) of the fourth group is used to replace the heating film Z3 (power a) of the third group, so that the heating power of the heating film of the third compartment 3 is 3b, and the heating power of the first compartment 1 and the second compartment 2 is a+2b>3b. This can locally reduce the heating power of the third compartment 3 and make the temperature of the three compartments tend to be consistent.

[0123] The existing heating film device involves multiple heating film groups in three compartments that start heating and shut down simultaneously, controlled by only one three-phase thyristor. While the existing heating equipment provides equal heating intensity to each compartment, the different operating environments and heat dissipation efficiencies of each compartment result in significant temperature differences, leading to a large temperature gradient along the aircraft's axial direction.

[0124] Compared with the prior art, the technical solution provided in this embodiment has at least one of the following beneficial effects:

[0125] 1. This invention applies a multi-channel mode to temperature regulation and control. The temperature control device hardware is divided into multiple relatively independent hardware modules, allowing for multi-channel control of information data from these modules according to different needs. By selecting and processing information data from different channels at different times, the temperature can be maintained at a high precision level, flexibly and accurately using channels to achieve the required temperature regulation.

[0126] 2. By switching different heating film groups for heating, the present invention can change the heating power of a single compartment and thus affect the heating power of other compartments, thereby limiting the temperature of areas that heat up too quickly and maintaining the temperature consistency of the three compartments.

[0127] 3. The multi-channel temperature regulation and control device of the present invention optimizes and improves the hardware based on the environmental changes inside the cabin and aims to meet the temperature requirements inside the cabin. It proposes a multi-channel temperature regulation and control device based on environmental changes and sets corresponding control modes to solve problems such as excessively high overall average temperature of the temperature regulation equipment, large temperature fluctuation amplitude, and large temperature difference before and after. By using multiple channels to regulate the temperature, it achieves the requirements of high stability and accuracy of temperature control and ensures the safety requirements of the temperature regulation equipment.

[0128] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A multi-objective temperature control method, characterized in that, A multi-channel temperature regulation and control device is used for multi-target temperature control; The multi-channel temperature regulation and control device includes a temperature monitoring system and a temperature control system. The temperature control system includes a controller, an X-group heating film, a Y-group heating film, and a Z-group heating film. The X-group heating film is disposed inside the first compartment for heating the first compartment. The Y-group heating film is disposed inside the second compartment for heating the second compartment. The Z-group heating film is disposed inside the third compartment for heating the third compartment. The X-group heating film includes heating film X1, heating film X2, heating film X3, and heating film X4. The Y-group heating film includes heating film Y1, heating film Y2, heating film Y3, and heating film Y4. The Z-group heating film includes heating film Z1, heating film Z2, heating film Z3, and heating film Z4. The controller includes: a first three-phase thyristor, a second three-phase thyristor, a third three-phase thyristor, and a fourth three-phase thyristor; the first three-phase thyristor is used to synchronously control the heating of a first group of heating films composed of heating film X1, heating film Y1, and heating film Z1; the second three-phase thyristor is used to synchronously control the heating of a second group of heating films composed of heating film X2, heating film Y2, and heating film Z2; the third three-phase thyristor is used to synchronously control the heating of a third group of heating films composed of heating film X3, heating film Y3, and heating film Z3; and the fourth three-phase thyristor is used to synchronously control the heating of a fourth group of heating films composed of heating film X4, heating film Y4, and heating film Z4. The multi-objective temperature control method includes the following steps: Step S1: Set the temperature control range to n℃ Tc m℃; The internal temperature Tc of the cabin is detected by a temperature sensor; Step S2: When the internal temperature is greater than m℃, the temperature control system shuts down; when the internal temperature is less than n℃, the temperature control system turns on; when the internal temperature rises to n℃... Tc m℃, maintain temperature control status; Step S3: When the temperature inside the cabin rises to m℃, the temperature control system shuts down again; Initially, the fourth heating film is closed. When the local temperature is too high and temperature difference needs to be adjusted, the heating film groups other than the fourth heating film group, which contain the highest power heating film in the compartment with the highest temperature, are closed, while the fourth heating film group is turned on. The heating power of the fourth heating film group is lower than that of the first three groups. By replacing the high-power heating film in the first three groups with the fourth heating film group, independent local cooling of a single compartment can be achieved, which can achieve local cooling without reducing the overall temperature. In temperature difference regulation mode, when the temperature of the first compartment is too high, the fourth three-phase thyristor is activated and the first three-phase thyristor is deactivated; when the temperature of the second compartment is too high, the fourth three-phase thyristor is activated and the second three-phase thyristor is deactivated; when the temperature of the third compartment is too high, the fourth three-phase thyristor is activated and the third three-phase thyristor is deactivated.

2. The multi-objective temperature control method according to claim 1, characterized in that, The temperature monitoring system includes multiple temperature sensors; the temperature sensors are used to monitor temperature changes in the internal environment of the first compartment, the second compartment, and the third compartment.

3. The multi-objective temperature control method according to claim 2, characterized in that, The cabin temperature Tc includes: the internal ambient temperature T1 of the first cabin, the internal ambient temperature T2 of the second cabin, and the internal ambient temperature T3 of the third cabin.

4. The multi-objective temperature control method according to claim 3, characterized in that, When the temperature of any compartment in T1, T2, or T3 is lower than n℃, the temperature control system can be activated.

5. The multi-objective temperature control method according to claim 4, characterized in that, When the temperature of any compartment in T1, T2, or T3 exceeds m℃, the temperature control system can be triggered to shut down.

6. The multi-objective temperature control method according to claim 5, characterized in that, In step S2, the process of controlling the opening and closing of the temperature control system is as follows: Step S21: Determine whether the cabin temperature Tc is greater than m℃. If so, keep the temperature control system off. Otherwise, determine whether the cabin temperature Tc is less than n℃. Step S22: Determine whether the cabin temperature Tc is less than n℃. If so, start the temperature control system to heat the cabin environment; otherwise, maintain the current state. Step S23: When the cabin temperature Tc rises to n℃ Tc At m℃, if the temperature control system is turned on, it will remain on until Tc > m℃ and then turn off; if the temperature control system is turned off, it will remain off until the temperature drops to Tc < n℃, triggering the temperature control system to turn on.

7. The multi-objective temperature control method according to claim 6, characterized in that, In steps S22-S23, multiple heating films are controlled to operate by a three-phase thyristor.

Images